The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The papers for publication in The International Journal of Engineering& Science are selected through rigorous peer reviews to ensure originality, timeliness, relevance, and readability.
The International Journal of Engineering and Science (The IJES)theijes
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The papers for publication in The International Journal of Engineering& Science are selected through rigorous peer reviews to ensure originality, timeliness, relevance, and readability.
The hydrological rate of flow of the watershed of Lake Laya El Hammam depends on its morphometric and geological features as well as its precipitation.The watershed of Lake Laya El Hammam is part of the coastal watersheds in the central-east of Tunisia. It is the only watershed which is not affected by hydraulic constructions such as dams. Besides, it features a surface area that extends to 204 km2 and a high recorded rainfall. To determine the hydrological rate of flow of the watershed, we had to identify its geological and morphometric characteristics, and gauge the flow of Lake Laya El Hammam. The final results have allowed us to identify: the general aspect of the flow of water in the watershed of Lake Laya El Hammam, the relationship lake/ sheet and the importance of gauging in Eastimating the rate of flow of water during periods marked by lack of rain.
The document discusses Esri's Ocean GIS Initiative which aims to expand the company's capabilities for mapping and analyzing ocean data. The initiative will focus on areas like research and exploration, ecosystems, fisheries management, and coastal protection. It highlights several existing projects including the Ocean Basemap, SeaSketch tool, Ocean Health Index, and ArcGIS for Maritime and Ocean Use Planning portals. The overall goals are to grow ocean mapping tools and data, engage more with ocean science partners, and support coastal and marine spatial planning.
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The papers for publication in The International Journal of Engineering& Science are selected through rigorous peer reviews to ensure originality, timeliness, relevance, and readability.
IRJET- Assessment of Reservoir Sedimentation using RS and GIS Techniques - A ...IRJET Journal
This document discusses using remote sensing and GIS techniques to assess sedimentation in the Kabini Reservoir in Karnataka, India over a 40-year period from 1974 to 2014. Digital image processing was used to delineate the water surface and develop elevation-area curves from satellite imagery. The reservoir's original capacity in 1974 was compared to its revised capacity in 2014, finding a 5.2% reduction in total storage, equivalent to a sedimentation rate of 0.718 cubic meters per year. Remote sensing allows evaluating sedimentation over time in a cost-effective manner compared to traditional surveying techniques.
Discovery of Perched Aquifer When Assessing Aquifer Potential along the flood...theijes
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The papers for publication in The International Journal of Engineering& Science are selected through rigorous peer reviews to ensure originality, timeliness, relevance, and readability.
evaluation of water resources in wadi el natrun, western desert, egyptIJEAB
Groundwater of the Pliocene aquifer in Wadi El Natrun area represents the primary source of reliable water for drinking and agriculture uses. This research focuses on the study of the different sources of water in the study area and determines the origin and quality of this waterand also is interested in studying hydrogeochemical processes that affect them and the movement of water through the analysis and determine the activity of different elements, and also to changes in hypothetical salts with the direction of water flow in three sectors of the region and the statement of the most important geochemical processes that occur. Finally it is evaluated the suitability of the water for different purposes. The results show that, there is a zonation of chemical composition; this zonation is characterized by a change of cation species from dominantly Ca and Mg near the east to Na-dominated waters in the west. Mirroring this, anions change from HCO3 type to Cl and SO4 type.The ions displays two grades of metasomatism along flow path, first the stage of mineralization(HCO3>Cl>So4) at the east then the advanced stage of mineralization (Cl>SO4 >HCO3) at the west. According to the(W.H.O.2005), 45 % of tested groundwater samples are permissible for drinking. Most groundwater samples of the Pliocene according to SAR andRSC are suitable for irrigation purposes under normal condition, but all surface water samples (lakes) are saline water,so it is not valid for drinking or irrigation purposes.
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The papers for publication in The International Journal of Engineering& Science are selected through rigorous peer reviews to ensure originality, timeliness, relevance, and readability.
The International Journal of Engineering and Science (The IJES)theijes
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The papers for publication in The International Journal of Engineering& Science are selected through rigorous peer reviews to ensure originality, timeliness, relevance, and readability.
The hydrological rate of flow of the watershed of Lake Laya El Hammam depends on its morphometric and geological features as well as its precipitation.The watershed of Lake Laya El Hammam is part of the coastal watersheds in the central-east of Tunisia. It is the only watershed which is not affected by hydraulic constructions such as dams. Besides, it features a surface area that extends to 204 km2 and a high recorded rainfall. To determine the hydrological rate of flow of the watershed, we had to identify its geological and morphometric characteristics, and gauge the flow of Lake Laya El Hammam. The final results have allowed us to identify: the general aspect of the flow of water in the watershed of Lake Laya El Hammam, the relationship lake/ sheet and the importance of gauging in Eastimating the rate of flow of water during periods marked by lack of rain.
The document discusses Esri's Ocean GIS Initiative which aims to expand the company's capabilities for mapping and analyzing ocean data. The initiative will focus on areas like research and exploration, ecosystems, fisheries management, and coastal protection. It highlights several existing projects including the Ocean Basemap, SeaSketch tool, Ocean Health Index, and ArcGIS for Maritime and Ocean Use Planning portals. The overall goals are to grow ocean mapping tools and data, engage more with ocean science partners, and support coastal and marine spatial planning.
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The papers for publication in The International Journal of Engineering& Science are selected through rigorous peer reviews to ensure originality, timeliness, relevance, and readability.
IRJET- Assessment of Reservoir Sedimentation using RS and GIS Techniques - A ...IRJET Journal
This document discusses using remote sensing and GIS techniques to assess sedimentation in the Kabini Reservoir in Karnataka, India over a 40-year period from 1974 to 2014. Digital image processing was used to delineate the water surface and develop elevation-area curves from satellite imagery. The reservoir's original capacity in 1974 was compared to its revised capacity in 2014, finding a 5.2% reduction in total storage, equivalent to a sedimentation rate of 0.718 cubic meters per year. Remote sensing allows evaluating sedimentation over time in a cost-effective manner compared to traditional surveying techniques.
Discovery of Perched Aquifer When Assessing Aquifer Potential along the flood...theijes
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The papers for publication in The International Journal of Engineering& Science are selected through rigorous peer reviews to ensure originality, timeliness, relevance, and readability.
evaluation of water resources in wadi el natrun, western desert, egyptIJEAB
Groundwater of the Pliocene aquifer in Wadi El Natrun area represents the primary source of reliable water for drinking and agriculture uses. This research focuses on the study of the different sources of water in the study area and determines the origin and quality of this waterand also is interested in studying hydrogeochemical processes that affect them and the movement of water through the analysis and determine the activity of different elements, and also to changes in hypothetical salts with the direction of water flow in three sectors of the region and the statement of the most important geochemical processes that occur. Finally it is evaluated the suitability of the water for different purposes. The results show that, there is a zonation of chemical composition; this zonation is characterized by a change of cation species from dominantly Ca and Mg near the east to Na-dominated waters in the west. Mirroring this, anions change from HCO3 type to Cl and SO4 type.The ions displays two grades of metasomatism along flow path, first the stage of mineralization(HCO3>Cl>So4) at the east then the advanced stage of mineralization (Cl>SO4 >HCO3) at the west. According to the(W.H.O.2005), 45 % of tested groundwater samples are permissible for drinking. Most groundwater samples of the Pliocene according to SAR andRSC are suitable for irrigation purposes under normal condition, but all surface water samples (lakes) are saline water,so it is not valid for drinking or irrigation purposes.
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The papers for publication in The International Journal of Engineering& Science are selected through rigorous peer reviews to ensure originality, timeliness, relevance, and readability.
This doctoral thesis examines the regional hydrogeological framework of the Mesozoic aquifer system in Jordan. It analyzes the complex groundwater flow systems in the Western Highlands and Central Plateau, which reflect changes in climate and geology. The aquifer systems are developed in Upper Cretaceous to Cainozoic carbonate rocks, which were modified over time by tectonic, volcanic and erosional events. Based on hydraulic conductivity contrasts, the regional carbonate aquifer system is divided into three main aquifers separated by confining units. The thesis studies the aquifer properties, recharge mechanisms and patterns, and conceptualizes regional groundwater flow through numerical modeling.
Impacts of Hurricane Sandy on the New Jersey Stockysmith
Hurricane Sandy made landfall near Atlantic City, NJ on October 29, 2012 as a Category 1 hurricane with sustained winds of 80 mph. The storm surge exceeded expectations due to coinciding with a full moon high tide, amplifying water levels by 20% and worsening coastal flooding. Beach profiles before and after the storm showed significant erosion of dunes and sand loss from beaches and nearshore areas. Preliminary estimates found New Jersey lost over 14 million cubic yards of sand due to Hurricane Sandy.
Hydrography is the branch of applied science which deals with the measurement...Hafez Ahmad
This document provides an overview of hydrography and its key components. It discusses how hydrography involves measuring and describing physical features of bodies of water for purposes like navigation safety. The end result is a nautical chart. Principal components of a hydrography survey are positioning, water depth measurements, identification of seafloor features/hazards, and characterization of seafloor type. Modern surveys rely on technologies like multibeam echosounders, GPS, and involve understanding fields like oceanography and acoustics. International standards help ensure uniformity.
Application of Well Logs and Seismic Data in Predicting Overpressured Zones i...IJSRED
This document discusses the prediction of overpressured zones in the Pasney Field located in the onshore Niger Delta using well logs and seismic data from four wells. Well logs from the four wells were correlated to identify three main reservoir sands. Eight normal faults were interpreted from seismic data. Time maps and depth maps of the reservoir horizons were generated from seismic interpretation, indicating the reservoirs are compartmentalized by faults, which suggests overpressure. Analysis of interval velocity and acoustic impedance from seismic also indicated lower values in overpressured zones. Pressure data showed the field has mild overpressure.
The document summarizes a study on variations in groundwater flow potential in parts of Imo State, Nigeria. Ten boreholes across the study area underlain by the Benin Formation were investigated. Transmissivity values, which indicate groundwater flow potential, ranged from 311.04 to 388,800 m2/day. The highest potential was at Futo borehole, while the lowest was at Uratta. The study area was segmented into areas of moderate and high potential. Areas with lower hydraulic conductivity and transmissivity values generally had moderate potential, while others with higher values had high potential. The groundwater flow potential model shows potential increases from north to south. The transmissivity values obtained can support sustainable groundwater
IRJET - Tidal Characteristics of Selected Stretch of Hugli Estuary, Related w...IRJET Journal
- The document analyzes tidal characteristics and suspended sediment concentration along the Hugli Estuary in India at three locations: Kulpi, Raichak, and Achipur.
- Tide monitoring and water sampling was conducted over 9 hours during high and low tide conditions in the monsoon and pre-monsoon seasons.
- Results showed differences in tidal behavior between seasons, with tidal asymmetry and lag times between high tides at locations. Suspended sediment concentration also varied with the tidal cycle.
It’s hard to get a highly Paid Job without any information & Skills. All the corporate culture needs prior experience. They don’t want to waste their resources to the people who don’t know. SO come to us, Get yourself trained by knowing the history of the field, business structure, your route of finding a place in one of the biggest job producing markets of the world with just a little effort to develop the skills. TSK- Training For skills and knowledge is the best institute in Rawalpindi Islamabad Pakistan for trainings and courses which leads you towards highly paid jobs. For more info visit www.trainingcourses.com.pk
Ayres Associates has over 20 years of experience performing hydrographic surveys for river and channel mapping, reservoir and lake mapping, and cross section surveys. They have mapped over 600 miles of river systems in California, and have experience surveying large reservoirs and smaller lakes and ponds. Ayres Associates is known for their ability to perform surveys in difficult to access areas like shallow rivers, and uses state-of-the-art GPS and depth sounding equipment to provide accurate data for uses like hydraulic modeling, bridge design, and habitat analysis.
Delta del Po e cambiamento climatico, lo studio della RegioneAlessiaDeMarchi2
Nell'ambito del progetto europeo "Change we care", a cui ha partecipato la Regione Veneto sono stati raccolti documenti e mappe legate all'evoluzione, anche storica, del territorio del Delta del Po. Eccone una sintesi
Cambodia Groundwater Irrigation - Exec SummaryMichael Roberts
This document summarizes a thesis on the physical and socioeconomic impacts of groundwater irrigation in Cambodia's Mekong Delta region. Physical investigations found that increased pumping is lowering the water table and could lead to saltwater contamination if not managed properly. Socioeconomic studies show groundwater irrigation benefits wealthy farmers most and may harm poorer communities as water tables decline. The author recommends controlling groundwater use, preparing for lower water tables, and further monitoring and research.
The document discusses various types of charts used for ocean navigation including routeing charts, wave charts, ice charts, and current charts. Routeing charts are published monthly for major ocean basins and contain information about winds, temperatures, currents, shipping routes and hazards. Wave charts show historic and predicted wave heights and directions. Ice charts indicate ice coverage and are used to plan safe routes. Current charts display ocean circulation patterns to aid efficient voyages. Additional sources of marine weather data include Navtex broadcasts.
This bulletin gives an estimate of the accuracy of MERCATOR OCEAN’s analyses and forecast for the season of January-February-March 2011. It also provides a summary of useful information on the context of the production for this period. Diagnostics will be displayed for the global 1/12° (PSY4), global ¼° (PSY3) and the Atlantic and Mediterranean zoom at 1/12° (PSY2) monitoring and forecasting systems currently producing daily 3D temperature salinity and current products. In this fourth issue, we present a short validation study in the North West Pacific near Japan in the context of the catastrophe of March 2011. Finally we introduce the Mercator Ocean global ¼° reanalysis GLORYS2V1 products currently available via MyOcean V1 for the 1993- 2009 period, and more specifically the quality control of in situ profiles based on GLORYS2V1 innovations.
This document discusses hydrographic surveying. It begins by defining hydrography as the measurement of bodies of water and how it is used to make nautical charts for navigation safety. It describes the processes involved in horizontal and vertical control surveys as well as methods for locating soundings, shoreline surveys, and river gauging. Rain gauging is discussed for predicting runoff. Equipment for soundings such as sounding rods, lead lines, and echo sounders are also outlined. Finally, it provides an overview of how hydrographic data is used to create nautical charts.
This document summarizes a study of coastal zone management in Cuddalore District, Tamil Nadu, India using remote sensing and GIS techniques. The study analyzed shoreline changes between 1971 and 2012. The results showed alternating periods of erosion and accretion across the study area. The northern region experienced land loss from 1971-1991 followed by erosion after 1991. The central region accreted from 1971-1991 then eroded after 1991. The southern region was dominated by erosion, except after the 2004 tsunami when deposition occurred. Overall, erosion activities were higher than accretion across the study area over the 41-year period.
This document summarizes a study comparing the morphological impacts of an extreme winter storm and a summer storm on a sandy beach in Biscarrosse, France. Shoreline and inner bar positions were monitored before, during, and after each storm using video data. Despite significantly different storm thresholds, with the winter storm having higher and longer lasting wave heights, the shoreline and inner bar recovered to their pre-storm positions within a week of both storms. Analysis of wave conditions before the storms found that the energy levels were similar, and falling conditions after each storm favored rapid recovery. The beach morphology may have also been close to equilibrium prior to each storm. The summer storm caused only minor, temporary erosion while a slight upward shift in beach
This document summarizes a thesis that studied variations in groundwater seepage lines on meso-tidal dissipative beaches. Key findings include that beachface volume is more correlated with groundwater seepage lines during low tide. Field data and video images showed decoupling of seepage lines and shorelines during tides. Numerical models could predict tidal groundwater changes and seepage line positions. The thesis concluded that beach slope, hydraulic conductivity, wave setup, and rip currents most influence seepage lines and suggested further study of their effects.
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The papers for publication in The International Journal of Engineering& Science are selected through rigorous peer reviews to ensure originality, timeliness, relevance, and readability.
The International Journal of Engineering and Science (The IJES)theijes
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The papers for publication in The International Journal of Engineering& Science are selected through rigorous peer reviews to ensure originality, timeliness, relevance, and readability.
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The papers for publication in The International Journal of Engineering& Science are selected through rigorous peer reviews to ensure originality, timeliness, relevance, and readability.
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The papers for publication in The International Journal of Engineering& Science are selected through rigorous peer reviews to ensure originality, timeliness, relevance, and readability.
This doctoral thesis examines the regional hydrogeological framework of the Mesozoic aquifer system in Jordan. It analyzes the complex groundwater flow systems in the Western Highlands and Central Plateau, which reflect changes in climate and geology. The aquifer systems are developed in Upper Cretaceous to Cainozoic carbonate rocks, which were modified over time by tectonic, volcanic and erosional events. Based on hydraulic conductivity contrasts, the regional carbonate aquifer system is divided into three main aquifers separated by confining units. The thesis studies the aquifer properties, recharge mechanisms and patterns, and conceptualizes regional groundwater flow through numerical modeling.
Impacts of Hurricane Sandy on the New Jersey Stockysmith
Hurricane Sandy made landfall near Atlantic City, NJ on October 29, 2012 as a Category 1 hurricane with sustained winds of 80 mph. The storm surge exceeded expectations due to coinciding with a full moon high tide, amplifying water levels by 20% and worsening coastal flooding. Beach profiles before and after the storm showed significant erosion of dunes and sand loss from beaches and nearshore areas. Preliminary estimates found New Jersey lost over 14 million cubic yards of sand due to Hurricane Sandy.
Hydrography is the branch of applied science which deals with the measurement...Hafez Ahmad
This document provides an overview of hydrography and its key components. It discusses how hydrography involves measuring and describing physical features of bodies of water for purposes like navigation safety. The end result is a nautical chart. Principal components of a hydrography survey are positioning, water depth measurements, identification of seafloor features/hazards, and characterization of seafloor type. Modern surveys rely on technologies like multibeam echosounders, GPS, and involve understanding fields like oceanography and acoustics. International standards help ensure uniformity.
Application of Well Logs and Seismic Data in Predicting Overpressured Zones i...IJSRED
This document discusses the prediction of overpressured zones in the Pasney Field located in the onshore Niger Delta using well logs and seismic data from four wells. Well logs from the four wells were correlated to identify three main reservoir sands. Eight normal faults were interpreted from seismic data. Time maps and depth maps of the reservoir horizons were generated from seismic interpretation, indicating the reservoirs are compartmentalized by faults, which suggests overpressure. Analysis of interval velocity and acoustic impedance from seismic also indicated lower values in overpressured zones. Pressure data showed the field has mild overpressure.
The document summarizes a study on variations in groundwater flow potential in parts of Imo State, Nigeria. Ten boreholes across the study area underlain by the Benin Formation were investigated. Transmissivity values, which indicate groundwater flow potential, ranged from 311.04 to 388,800 m2/day. The highest potential was at Futo borehole, while the lowest was at Uratta. The study area was segmented into areas of moderate and high potential. Areas with lower hydraulic conductivity and transmissivity values generally had moderate potential, while others with higher values had high potential. The groundwater flow potential model shows potential increases from north to south. The transmissivity values obtained can support sustainable groundwater
IRJET - Tidal Characteristics of Selected Stretch of Hugli Estuary, Related w...IRJET Journal
- The document analyzes tidal characteristics and suspended sediment concentration along the Hugli Estuary in India at three locations: Kulpi, Raichak, and Achipur.
- Tide monitoring and water sampling was conducted over 9 hours during high and low tide conditions in the monsoon and pre-monsoon seasons.
- Results showed differences in tidal behavior between seasons, with tidal asymmetry and lag times between high tides at locations. Suspended sediment concentration also varied with the tidal cycle.
It’s hard to get a highly Paid Job without any information & Skills. All the corporate culture needs prior experience. They don’t want to waste their resources to the people who don’t know. SO come to us, Get yourself trained by knowing the history of the field, business structure, your route of finding a place in one of the biggest job producing markets of the world with just a little effort to develop the skills. TSK- Training For skills and knowledge is the best institute in Rawalpindi Islamabad Pakistan for trainings and courses which leads you towards highly paid jobs. For more info visit www.trainingcourses.com.pk
Ayres Associates has over 20 years of experience performing hydrographic surveys for river and channel mapping, reservoir and lake mapping, and cross section surveys. They have mapped over 600 miles of river systems in California, and have experience surveying large reservoirs and smaller lakes and ponds. Ayres Associates is known for their ability to perform surveys in difficult to access areas like shallow rivers, and uses state-of-the-art GPS and depth sounding equipment to provide accurate data for uses like hydraulic modeling, bridge design, and habitat analysis.
Delta del Po e cambiamento climatico, lo studio della RegioneAlessiaDeMarchi2
Nell'ambito del progetto europeo "Change we care", a cui ha partecipato la Regione Veneto sono stati raccolti documenti e mappe legate all'evoluzione, anche storica, del territorio del Delta del Po. Eccone una sintesi
Cambodia Groundwater Irrigation - Exec SummaryMichael Roberts
This document summarizes a thesis on the physical and socioeconomic impacts of groundwater irrigation in Cambodia's Mekong Delta region. Physical investigations found that increased pumping is lowering the water table and could lead to saltwater contamination if not managed properly. Socioeconomic studies show groundwater irrigation benefits wealthy farmers most and may harm poorer communities as water tables decline. The author recommends controlling groundwater use, preparing for lower water tables, and further monitoring and research.
The document discusses various types of charts used for ocean navigation including routeing charts, wave charts, ice charts, and current charts. Routeing charts are published monthly for major ocean basins and contain information about winds, temperatures, currents, shipping routes and hazards. Wave charts show historic and predicted wave heights and directions. Ice charts indicate ice coverage and are used to plan safe routes. Current charts display ocean circulation patterns to aid efficient voyages. Additional sources of marine weather data include Navtex broadcasts.
This bulletin gives an estimate of the accuracy of MERCATOR OCEAN’s analyses and forecast for the season of January-February-March 2011. It also provides a summary of useful information on the context of the production for this period. Diagnostics will be displayed for the global 1/12° (PSY4), global ¼° (PSY3) and the Atlantic and Mediterranean zoom at 1/12° (PSY2) monitoring and forecasting systems currently producing daily 3D temperature salinity and current products. In this fourth issue, we present a short validation study in the North West Pacific near Japan in the context of the catastrophe of March 2011. Finally we introduce the Mercator Ocean global ¼° reanalysis GLORYS2V1 products currently available via MyOcean V1 for the 1993- 2009 period, and more specifically the quality control of in situ profiles based on GLORYS2V1 innovations.
This document discusses hydrographic surveying. It begins by defining hydrography as the measurement of bodies of water and how it is used to make nautical charts for navigation safety. It describes the processes involved in horizontal and vertical control surveys as well as methods for locating soundings, shoreline surveys, and river gauging. Rain gauging is discussed for predicting runoff. Equipment for soundings such as sounding rods, lead lines, and echo sounders are also outlined. Finally, it provides an overview of how hydrographic data is used to create nautical charts.
This document summarizes a study of coastal zone management in Cuddalore District, Tamil Nadu, India using remote sensing and GIS techniques. The study analyzed shoreline changes between 1971 and 2012. The results showed alternating periods of erosion and accretion across the study area. The northern region experienced land loss from 1971-1991 followed by erosion after 1991. The central region accreted from 1971-1991 then eroded after 1991. The southern region was dominated by erosion, except after the 2004 tsunami when deposition occurred. Overall, erosion activities were higher than accretion across the study area over the 41-year period.
This document summarizes a study comparing the morphological impacts of an extreme winter storm and a summer storm on a sandy beach in Biscarrosse, France. Shoreline and inner bar positions were monitored before, during, and after each storm using video data. Despite significantly different storm thresholds, with the winter storm having higher and longer lasting wave heights, the shoreline and inner bar recovered to their pre-storm positions within a week of both storms. Analysis of wave conditions before the storms found that the energy levels were similar, and falling conditions after each storm favored rapid recovery. The beach morphology may have also been close to equilibrium prior to each storm. The summer storm caused only minor, temporary erosion while a slight upward shift in beach
This document summarizes a thesis that studied variations in groundwater seepage lines on meso-tidal dissipative beaches. Key findings include that beachface volume is more correlated with groundwater seepage lines during low tide. Field data and video images showed decoupling of seepage lines and shorelines during tides. Numerical models could predict tidal groundwater changes and seepage line positions. The thesis concluded that beach slope, hydraulic conductivity, wave setup, and rip currents most influence seepage lines and suggested further study of their effects.
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The papers for publication in The International Journal of Engineering& Science are selected through rigorous peer reviews to ensure originality, timeliness, relevance, and readability.
The International Journal of Engineering and Science (The IJES)theijes
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The papers for publication in The International Journal of Engineering& Science are selected through rigorous peer reviews to ensure originality, timeliness, relevance, and readability.
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The papers for publication in The International Journal of Engineering& Science are selected through rigorous peer reviews to ensure originality, timeliness, relevance, and readability.
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The papers for publication in The International Journal of Engineering& Science are selected through rigorous peer reviews to ensure originality, timeliness, relevance, and readability.
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The papers for publication in The International Journal of Engineering& Science are selected through rigorous peer reviews to ensure originality, timeliness, relevance, and readability.
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The papers for publication in The International Journal of Engineering& Science are selected through rigorous peer reviews to ensure originality, timeliness, relevance, and readability.
This document discusses methods for estimating the parameters of a multivariate normal distribution when certain constraints are placed on the parameters. Specifically, it considers:
1) Estimating the mean sub-vector when the constraint Rμ1 = r is placed, where R and r are known. It derives the maximum likelihood estimator for this case when the covariance matrix is known and unknown.
2) Estimating a submatrix of the covariance matrix Σ when the constraint Σ11 = kΣ110 is placed, where Σ110 is a known submatrix and k is an unknown parameter. It derives the maximum likelihood estimator for k.
3) Provides the likelihood function when a general constraint of Σ = k
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The papers for publication in The International Journal of Engineering& Science are selected through rigorous peer reviews to ensure originality, timeliness, relevance, and readability.
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The papers for publication in The International Journal of Engineering& Science are selected through rigorous peer reviews to ensure originality, timeliness, relevance, and readability.
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The papers for publication in The International Journal of Engineering& Science are selected through rigorous peer reviews to ensure originality, timeliness, relevance, and readability.
This document evaluates the modal damping of graphite/epoxy laminated composites through experimental testing. Graphite/epoxy laminate composite plates of different thicknesses (2mm and 4mm) and fiber orientations (0 and 45 degrees) were fabricated and tested under different boundary conditions (cantilever, two sides fixed, all sides fixed) using an impulse excitation technique. The results show that modal damping decreases with increasing laminate thickness and is sensitive to changes in boundary conditions. Damping was highest for the cantilever boundary condition and lowest for the two sides fixed condition. Evaluation of modal damping through experimental modal analysis provides a simple and effective technique for characterizing damping properties of composite laminates.
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The papers for publication in The International Journal of Engineering& Science are selected through rigorous peer reviews to ensure originality, timeliness, relevance, and readability.
The International Journal of Engineering and Science (The IJES)theijes
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The papers for publication in The International Journal of Engineering& Science are selected through rigorous peer reviews to ensure originality, timeliness, relevance, and readability.
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The papers for publication in The International Journal of Engineering& Science are selected through rigorous peer reviews to ensure originality, timeliness, relevance, and readability.
The International Journal of Engineering and Science (The IJES)theijes
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The papers for publication in The International Journal of Engineering& Science are selected through rigorous peer reviews to ensure originality, timeliness, relevance, and readability.
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The papers for publication in The International Journal of Engineering& Science are selected through rigorous peer reviews to ensure originality, timeliness, relevance, and readability.
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The papers for publication in The International Journal of Engineering& Science are selected through rigorous peer reviews to ensure originality, timeliness, relevance, and readability.
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The papers for publication in The International Journal of Engineering& Science are selected through rigorous peer reviews to ensure originality, timeliness, relevance, and readability.
The International Journal of Engineering and Science (The IJES)theijes
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The papers for publication in The International Journal of Engineering& Science are selected through rigorous peer reviews to ensure originality, timeliness, relevance, and readability.
Remote Sensing Technique as Exploration Tool for Ground water in Parts of the...theijes
The study area lies within latitudes 8°00' – 9°00'N and longitudes 11°30' – 12°30'E. Analysis of remote sensing imageries of part of the Upper Benue Trough of Nigeria was carried out on a scale of 1:100,000. The aim of this study includes the structural interpretation of the remote sensing data and the identification of the lineament and drainage patterns associated with the area to infer the influence of such structures on the economic potential of the basin. Results of the structural analysis revealed numerous lineaments. Trend analysis of the lineaments plotted on a rose diagram using the strikes and lengths of the entire lineaments revealed structural trends predominating in the NE-SW direction. The absence of visible lineaments in parts of the area may not indicate absence of geological structures. Some of these lineaments were found on some drainages showing that the drainages in those areas are structurally and tectonically controlled. The areas where the lineaments cross each other are indicative of groundwater availability and there correspond to regions of mean topographic height of about 900m
The International Journal of Engineering and Science (The IJES)theijes
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The papers for publication in The International Journal of Engineering& Science are selected through rigorous peer reviews to ensure originality, timeliness, relevance, and readability.
Evaluation of Heterogeneous Aquifers in Crystalline Rocks from Resistivity So...theijes
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The International Journal of Engineering and Science (IJES)theijes
This study investigated the aquifer characteristics of the Lafia sub-basin in Nasarawa State, Nigeria. Hydrogeological surveys using electrical resistivity probes revealed predominately sandstone lithology down to 220 feet with argillites dominating below. The upper aquifer was found to be Lafia sandstone including the top sand of the Awqu Geological Formation comprising grey shales and occasional sandstone and limestone. Borehole drilling showed predominately fine to coarse sand and clay lithology down to 220 feet. The borehole yielded 3 liters/second with a static water level of 180 feet and 90 foot drawdown after 1 hour of pumping. This study characterized the aquifers of the Lafia sub-bas
The International Journal of Engineering and Science (The IJES)theijes
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The papers for publication in The International Journal of Engineering& Science are selected through rigorous peer reviews to ensure originality, timeliness, relevance, and readability
Mallikarjun A.H submitted a seminar on subsurface investigation of groundwater to Ms. Smitha T.L at Kuvempu University's Department of P.G Studies and Research in Applied Geology. The seminar covered various subsurface methods for groundwater exploration, including test drilling techniques like geological logging, drilling time logging, and water level measurements. It also discussed borehole geophysical logging methods such as resistivity logging, spontaneous potential logging, and radiation logging techniques like natural gamma, gamma-gamma, and neutron logging. The seminar provided details on each technique's application and limitations.
Investigation of groundwater flow direction using Geospatial technology: A ca...AI Publications
A geospatial technique was used in some parts of the Port Harcourt metropolis to establish the direction of groundwater movement. This method included the use of twelve carefully selected boreholes and a variety of cutting-edge tools, such as depth meters, handheld GPS, and measuring tape. The static water level in the boreholes and the ground surface elevation in relation to the average sea level of the region were two of the variables that were gathered. High-end software was used to analyze the data in order to create groundwater flow direction maps and 3D visualizations for displaying the whole research region based on the fluctuation in static water levels. This software included Microsoft Excel, ArcGIS 10.4, and ArcScene 10.4. Afterward, the main and minor flow directions were identified. The results showed that groundwater in the area moves from the north to the south, with group 4 having the largest hydraulic gradient and group 1 coming in second. On the other hand, groups 3 and 2 had the lowest hydraulic gradient. The main factors influencing groundwater flow were determined to be gravity and external pressure brought on by pumping. The research region's southern regions are more vulnerable to groundwater pollution, which may result from zones with higher hydraulic heads, according to the flow pattern in the aquifer system. As a result, it is advised that residential boreholes and municipal water wells be located on the study area's northern sides, whereas sanitary landfills and garbage sites should only be located in the southwest.
Discovery of Perched Aquifer When Assessing Aquifer Potential along the flood...theijes
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
This document proposes research to determine the groundwater table in Hawa Galan catchment, Ethiopia using vertical electrical sounding (VES) methods. The study area has a population of over 123,000 people relying on groundwater sources like hand dug wells as there are no permanent surface water sources. Previous studies in the region focused on geology and igneous petrology but not groundwater. This research will involve collecting VES data along profiles and analyzing the results to map subsurface resistivity and identify potential high-yield aquifers and drilling locations to address the need for sustainable groundwater resources in the community. A detailed work plan and budget are provided outlining field work, data analysis, and reporting over an anticipated one year
The International Journal of Engineering and Science (The IJES)theijes
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
This document summarizes subsurface investigation methods for groundwater exploration, including test drilling and borehole geophysical logging techniques. Test drilling methods collect samples and logs to characterize subsurface geology and identify aquifers. Geophysical logging lowers sensor tools to measure physical properties like resistivity, natural radiation, and temperature that indicate lithology, porosity, and groundwater flow. These subsurface techniques provide detailed data for groundwater exploration but are more expensive than surface methods.
Assessment of groundwater potentials of the crystalline aquifers using hydra...Alexander Decker
This document summarizes a study that assessed the groundwater potentials of crystalline aquifers in Gidanwaya Town and its environs in southern Kaduna State, Nigeria. Pumping test data from 25 boreholes was used to evaluate the hydraulic properties of the aquifers derived from crystalline basement rocks in the area. Transmissivity values ranged from 1.16x10-1 to 9.76x10-3 m2/s, indicating high to very high groundwater potentials. Hydraulic conductivity values ranged from 1.12x10-2 to 9.24x10-3 m/s. Specific capacity values ranged from 1.00x10-1 to 9.95x10-
Artificial Recharge to Alluvial Aquifer, Northeastern Nuba Mountains, Sudan.IJRES Journal
Many engineering geology and structural geology aspects have been used in this study, to point out the suitability of the site for artificial recharge to alluvial aquifer, such as; rocks and soil types, seepage rate, structures and lineaments. The area is under lied by basement rocks with considerable thickness (10 to 15 m) of alluvial deposit. Overall soil type is sandy soil and its seepage rate is 34.56 Liter per hour. The most existing lineaments are trending toward NW direction while rocks foliation dipping toward WWN direction. The site is satisfied to be artificial recharge.
This document summarizes a geoelectrical resistivity survey conducted in the Shooro Basin in southeast Iran to study groundwater conditions. 207 vertical electrical soundings were performed and interpreted, identifying an alluvial aquifer divided into eastern and western parts by the Shooro River. The western aquifer has higher permeability and resistivity than the eastern part, likely due to differences in material and water quality. Zones of high groundwater yield potential were also identified based on resistivity data. The study aims to evaluate subsurface hydrogeological structures and conditions to protect groundwater resources in the area.
Ground Water Conditions and Major-Ion Hydrogeochemistry of the Benin Formatio...iosrjce
Field determination of water table head from more than thirty randomly located dug wells have
been used to establish that the water table gradient in the shallow sandy Benin Formation aquifer that underlies
the Sapele urban area is generally inclined northwards. Groundwater flow is thus mainly northwards from the
city center towards the Ethiope River. Transmisivity of the sands at a deeper horizon has been estimated at
27.5m2
per day. Groundwater is mildly acidic at mean pH 6.5. TDS is generally low at mean 42mg/l and
lowest at 15.2 mg/l. Groundwater mixing and ion exchange processes prevent the dominance of specific cations
and water types range from Ca +Na + Mg at Shell Rd in the south east to Ca+ Mg at Urhobo Road in the city
center. The chloride ion dominates. Water in the Ethiope River is also mildly acidic at mean pH 6.5 and TDS is
lowest at PHCN, 12mg/l and highest at AT&P wood works, 184mg/l where sawmill wastes are dumped in the
river. Notwithstanding, indices of aquatic ecosystem health are well below recommended threshold values and
water in the area is of such exceptionally unique high chemical quality that it may be utilized for water supply
irrigation and industry
This document summarizes a study that used vertical electrical sounding (VES) and 3D imaging to investigate groundwater distribution along the flood plains of the River Niger in Jebba, Nigeria. 25 VES profiles were collected and interpreted to generate geo-electric cross sections showing 3-4 subsurface layers. The sections identified two aquifer systems - a shallow weathered layer aquifer and a deeper fractured basement aquifer. 3D imaging of the subsurface was also used to delineate areas of high groundwater potential. The results showed groundwater potential was lowest in the northwest, average in the northeast, and highest in the southeast along the river. The study helps characterize the aquifers and identify promising areas for groundwater development.
International Journal of Engineering Research and DevelopmentIJERD Editor
Electrical, Electronics and Computer Engineering,
Information Engineering and Technology,
Mechanical, Industrial and Manufacturing Engineering,
Automation and Mechatronics Engineering,
Material and Chemical Engineering,
Civil and Architecture Engineering,
Biotechnology and Bio Engineering,
Environmental Engineering,
Petroleum and Mining Engineering,
Marine and Agriculture engineering,
Aerospace Engineering.
The International Journal of Engineering and Science (The IJES)theijes
This document summarizes meteorological data from Port Harcourt, Nigeria from 2001-2010. Some key findings:
- Port Harcourt has a rainy season from 9-10 months per year and average annual rainfall of over 185mm.
- Maximum annual evaporation was 148mm and average annual evaporation was 102mm.
- The area has shallow aquifers from 15-30m depth that are highly rechargeable by rainfall.
- Despite available water resources, there is currently insufficient potable water supply to meet demand.
11.assessment of the vulnerability of water supply aquifers in parts of imo r...Alexander Decker
The document summarizes a study that assessed the vulnerability of water supply aquifers in parts of the Imo River Basin in southeastern Nigeria. Twenty-three locations were investigated to obtain data on parameters like depth to water table, recharge rate, aquifer and soil properties, topography, and hydraulic conductivity, which were used in the DRASTIC model to develop a groundwater vulnerability map. The map showed that areas within the Imo shale and Ameki Formations generally have moderate vulnerability to pollution, while some locations like Okwelle, Umuna, and Okwe showed low vulnerability, likely due to lower porosity in clay- and shale-underlain areas.
Similar to The International Journal of Engineering and Science (The IJES) (20)
Threats to mobile devices are more prevalent and increasing in scope and complexity. Users of mobile devices desire to take full advantage of the features
available on those devices, but many of the features provide convenience and capability but sacrifice security. This best practices guide outlines steps the users can take to better protect personal devices and information.
UiPath Test Automation using UiPath Test Suite series, part 5DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 5. In this session, we will cover CI/CD with devops.
Topics covered:
CI/CD with in UiPath
End-to-end overview of CI/CD pipeline with Azure devops
Speaker:
Lyndsey Byblow, Test Suite Sales Engineer @ UiPath, Inc.
Removing Uninteresting Bytes in Software FuzzingAftab Hussain
Imagine a world where software fuzzing, the process of mutating bytes in test seeds to uncover hidden and erroneous program behaviors, becomes faster and more effective. A lot depends on the initial seeds, which can significantly dictate the trajectory of a fuzzing campaign, particularly in terms of how long it takes to uncover interesting behaviour in your code. We introduce DIAR, a technique designed to speedup fuzzing campaigns by pinpointing and eliminating those uninteresting bytes in the seeds. Picture this: instead of wasting valuable resources on meaningless mutations in large, bloated seeds, DIAR removes the unnecessary bytes, streamlining the entire process.
In this work, we equipped AFL, a popular fuzzer, with DIAR and examined two critical Linux libraries -- Libxml's xmllint, a tool for parsing xml documents, and Binutil's readelf, an essential debugging and security analysis command-line tool used to display detailed information about ELF (Executable and Linkable Format). Our preliminary results show that AFL+DIAR does not only discover new paths more quickly but also achieves higher coverage overall. This work thus showcases how starting with lean and optimized seeds can lead to faster, more comprehensive fuzzing campaigns -- and DIAR helps you find such seeds.
- These are slides of the talk given at IEEE International Conference on Software Testing Verification and Validation Workshop, ICSTW 2022.
Sudheer Mechineni, Head of Application Frameworks, Standard Chartered Bank
Discover how Standard Chartered Bank harnessed the power of Neo4j to transform complex data access challenges into a dynamic, scalable graph database solution. This keynote will cover their journey from initial adoption to deploying a fully automated, enterprise-grade causal cluster, highlighting key strategies for modelling organisational changes and ensuring robust disaster recovery. Learn how these innovations have not only enhanced Standard Chartered Bank’s data infrastructure but also positioned them as pioneers in the banking sector’s adoption of graph technology.
Dr. Sean Tan, Head of Data Science, Changi Airport Group
Discover how Changi Airport Group (CAG) leverages graph technologies and generative AI to revolutionize their search capabilities. This session delves into the unique search needs of CAG’s diverse passengers and customers, showcasing how graph data structures enhance the accuracy and relevance of AI-generated search results, mitigating the risk of “hallucinations” and improving the overall customer journey.
Unlock the Future of Search with MongoDB Atlas_ Vector Search Unleashed.pdfMalak Abu Hammad
Discover how MongoDB Atlas and vector search technology can revolutionize your application's search capabilities. This comprehensive presentation covers:
* What is Vector Search?
* Importance and benefits of vector search
* Practical use cases across various industries
* Step-by-step implementation guide
* Live demos with code snippets
* Enhancing LLM capabilities with vector search
* Best practices and optimization strategies
Perfect for developers, AI enthusiasts, and tech leaders. Learn how to leverage MongoDB Atlas to deliver highly relevant, context-aware search results, transforming your data retrieval process. Stay ahead in tech innovation and maximize the potential of your applications.
#MongoDB #VectorSearch #AI #SemanticSearch #TechInnovation #DataScience #LLM #MachineLearning #SearchTechnology
GraphSummit Singapore | The Art of the Possible with Graph - Q2 2024Neo4j
Neha Bajwa, Vice President of Product Marketing, Neo4j
Join us as we explore breakthrough innovations enabled by interconnected data and AI. Discover firsthand how organizations use relationships in data to uncover contextual insights and solve our most pressing challenges – from optimizing supply chains, detecting fraud, and improving customer experiences to accelerating drug discoveries.
Programming Foundation Models with DSPy - Meetup SlidesZilliz
Prompting language models is hard, while programming language models is easy. In this talk, I will discuss the state-of-the-art framework DSPy for programming foundation models with its powerful optimizers and runtime constraint system.
Maruthi Prithivirajan, Head of ASEAN & IN Solution Architecture, Neo4j
Get an inside look at the latest Neo4j innovations that enable relationship-driven intelligence at scale. Learn more about the newest cloud integrations and product enhancements that make Neo4j an essential choice for developers building apps with interconnected data and generative AI.
Cosa hanno in comune un mattoncino Lego e la backdoor XZ?Speck&Tech
ABSTRACT: A prima vista, un mattoncino Lego e la backdoor XZ potrebbero avere in comune il fatto di essere entrambi blocchi di costruzione, o dipendenze di progetti creativi e software. La realtà è che un mattoncino Lego e il caso della backdoor XZ hanno molto di più di tutto ciò in comune.
Partecipate alla presentazione per immergervi in una storia di interoperabilità, standard e formati aperti, per poi discutere del ruolo importante che i contributori hanno in una comunità open source sostenibile.
BIO: Sostenitrice del software libero e dei formati standard e aperti. È stata un membro attivo dei progetti Fedora e openSUSE e ha co-fondato l'Associazione LibreItalia dove è stata coinvolta in diversi eventi, migrazioni e formazione relativi a LibreOffice. In precedenza ha lavorato a migrazioni e corsi di formazione su LibreOffice per diverse amministrazioni pubbliche e privati. Da gennaio 2020 lavora in SUSE come Software Release Engineer per Uyuni e SUSE Manager e quando non segue la sua passione per i computer e per Geeko coltiva la sua curiosità per l'astronomia (da cui deriva il suo nickname deneb_alpha).
Full-RAG: A modern architecture for hyper-personalizationZilliz
Mike Del Balso, CEO & Co-Founder at Tecton, presents "Full RAG," a novel approach to AI recommendation systems, aiming to push beyond the limitations of traditional models through a deep integration of contextual insights and real-time data, leveraging the Retrieval-Augmented Generation architecture. This talk will outline Full RAG's potential to significantly enhance personalization, address engineering challenges such as data management and model training, and introduce data enrichment with reranking as a key solution. Attendees will gain crucial insights into the importance of hyperpersonalization in AI, the capabilities of Full RAG for advanced personalization, and strategies for managing complex data integrations for deploying cutting-edge AI solutions.
For the full video of this presentation, please visit: https://www.edge-ai-vision.com/2024/06/building-and-scaling-ai-applications-with-the-nx-ai-manager-a-presentation-from-network-optix/
Robin van Emden, Senior Director of Data Science at Network Optix, presents the “Building and Scaling AI Applications with the Nx AI Manager,” tutorial at the May 2024 Embedded Vision Summit.
In this presentation, van Emden covers the basics of scaling edge AI solutions using the Nx tool kit. He emphasizes the process of developing AI models and deploying them globally. He also showcases the conversion of AI models and the creation of effective edge AI pipelines, with a focus on pre-processing, model conversion, selecting the appropriate inference engine for the target hardware and post-processing.
van Emden shows how Nx can simplify the developer’s life and facilitate a rapid transition from concept to production-ready applications.He provides valuable insights into developing scalable and efficient edge AI solutions, with a strong focus on practical implementation.
Let's Integrate MuleSoft RPA, COMPOSER, APM with AWS IDP along with Slackshyamraj55
Discover the seamless integration of RPA (Robotic Process Automation), COMPOSER, and APM with AWS IDP enhanced with Slack notifications. Explore how these technologies converge to streamline workflows, optimize performance, and ensure secure access, all while leveraging the power of AWS IDP and real-time communication via Slack notifications.
Building Production Ready Search Pipelines with Spark and MilvusZilliz
Spark is the widely used ETL tool for processing, indexing and ingesting data to serving stack for search. Milvus is the production-ready open-source vector database. In this talk we will show how to use Spark to process unstructured data to extract vector representations, and push the vectors to Milvus vector database for search serving.
Unlocking Productivity: Leveraging the Potential of Copilot in Microsoft 365, a presentation by Christoforos Vlachos, Senior Solutions Manager – Modern Workplace, Uni Systems
HCL Notes and Domino License Cost Reduction in the World of DLAUpanagenda
Webinar Recording: https://www.panagenda.com/webinars/hcl-notes-and-domino-license-cost-reduction-in-the-world-of-dlau/
The introduction of DLAU and the CCB & CCX licensing model caused quite a stir in the HCL community. As a Notes and Domino customer, you may have faced challenges with unexpected user counts and license costs. You probably have questions on how this new licensing approach works and how to benefit from it. Most importantly, you likely have budget constraints and want to save money where possible. Don’t worry, we can help with all of this!
We’ll show you how to fix common misconfigurations that cause higher-than-expected user counts, and how to identify accounts which you can deactivate to save money. There are also frequent patterns that can cause unnecessary cost, like using a person document instead of a mail-in for shared mailboxes. We’ll provide examples and solutions for those as well. And naturally we’ll explain the new licensing model.
Join HCL Ambassador Marc Thomas in this webinar with a special guest appearance from Franz Walder. It will give you the tools and know-how to stay on top of what is going on with Domino licensing. You will be able lower your cost through an optimized configuration and keep it low going forward.
These topics will be covered
- Reducing license cost by finding and fixing misconfigurations and superfluous accounts
- How do CCB and CCX licenses really work?
- Understanding the DLAU tool and how to best utilize it
- Tips for common problem areas, like team mailboxes, functional/test users, etc
- Practical examples and best practices to implement right away
HCL Notes and Domino License Cost Reduction in the World of DLAU
The International Journal of Engineering and Science (The IJES)
1. The International Journal Of Engineering And Science (IJES)
||Volume|| 2 ||Issue|| 11 ||Pages|| 136-141 || 2013 ||
ISSN (e): 2319 – 1813 ISSN (p): 2319 – 1805
Assessment of Static Water Level Dynamics in parts of the
Eastern Niger Delta
1
S.A Ngah and 2H.O Nwankwoala
1
Institute of Geosciences and Space Technology, Rivers State University of Science and Technology,
Port Harcourt, Nigeria
2
Department of Geology, University of Port Harcourt, PMB 5323, Choba, Port Harcourt, Nigeria.
--------------------------------------------------------- ABSTRACT-----------------------------------------------------------The maximum static water level in the study area occurs around Ulakwo, at 18.2 meters below ground surface
and Erema, 15.24 meters below ground surface in the northern parts of the study area. Values of static water
level decrease in the central parts to 3.7m, 3.23m and 2.3m for Omoku, Bodo and Abonema respectively. The
value approaches near surface in the southern parts and near the coast, 0.34m at Abissa, 0.69m at Brass and
zero at Akassa. Artesian conditions prevail in places where a thick clay sequence completely seals the
underlying sandy aquifer over a long lateral distance with sufficient confining pressure as in the very deep wells
at Bonny or in the perched aquifers in the clayey southern parts of the study area like Abam Ama, Old GRA and
Iva Valley, Port Harcourt. The static water level map clearly shows that the major regional direction of
groundwater flow is from north to south. Changes in groundwater flow directions which occur at some places in
the southeast, northwest and northeast, generally serve localized discharge areas. The resultant flow path
eventually joins and feeds the major regional north-south flow direction. This flow pattern (local and regional)
is generally consistent with the geology and stratigraphy of the area.
KEYWORDS: Static water level, aquifers, groundwater flow, Niger Delta
------------------------------------------------------------------------------------------------------------------------------- -------Date of Submission: 26, June - 2013
Date of Acceptance: 10, November - 2013
---------------------------------------------------------------------------------------------------------------------------------------
I. INTRODUCTION
The level to which an urban centre meet its water demand depends on a variety of factors:
physical/geographic which can be linked to natural recharge due to a combination of good rainfall and receptive
subsurface geology or good aquifers that can store and transmit quality groundwater devoid of salinity and other
impurities while the second factor is driven by the economic scarcity (Ajibade et al., 2011).In the study area, the
main source of recharge is through direct precipitation where annual rainfall is as high as 2000 – 2400mm. The
water infiltrates through the highly permeable sands of the Benin Formation to recharge the aquifers.
Groundwater in the study area occurs principally under water table conditions. Multi-aquifer systems occur in
the study area and the upper aquifers are generally unconfined (Etu-Efeotor, 1981; Offodile, 2002; Edet, 1993;
and Udom, 2004).
The rate of aquifer recharge depends to a large extent on the infiltration capacity of the soil, percolation,
evapotranspiration rate, subsurface lithology and the overland drainage characteristics of the area. Where sandy clays form a
part of the soil layer, recharge usually occurs through a distant outcrop of the porous formation and partially through the
lateritic sandy clay which exist to a few meters. Tahal (1998) observed that about 30% - 40% of yearly average rainfall
(2,280mm) could in fact infiltrate and recharge the Benin Formation. Recharge by precipitation is 60% - 70% of rainfall in
the north where sandy porous outcrops exist. Therefore, sandy porous outcrops of the older rocks in the north serve as
recharge area. There, recharge can be as high as 60% - 70% of the rainfall. Recent sediments form the discharge areas in the
south. This paper therefore, assesses and evaluates the static water levels dynamics in parts of the Niger Delta.
Description of the Study Area
The study area is the Niger Delta Sedimentary Basin (Fig. 1). Lithostratigraphically, these rocks are
divided into the oldest Akata Formation (Paleocene), the Agbada Formation (Eocene) and the Youngest Benin
Formation (Miocene to Recent). Generally, the present knowledge of the geology of the Niger Delta was
derived from the works of the following researchers (Reyment, 1965; Short & Stauble, 1967; Murat, 1970;
Merki, 1970) as well as the exploration activities of the oil and gas companies in Nigeria. The formation of the
so called proto-Niger Delta occurred during the second depositional cycle (Campanian-Maastrichtian) of the
southern Nigerian basin. However, the modern Niger Delta was formed during the third and last depositional
cycle of the southern Nigerian basin which started in the Paleocene.
www.theijes.com
The IJES
Page 136
2. Assessment of Static Water Level Dynamics…
The geologic sequence of the Niger Delta consists of three main Tertiary subsurface lithostratigraphic
units (Short & Stauble, 1967) which are overlain by various types of Quaternary deposits (Table 1)
Table 1: Quaternary deposits of the Niger Delta (after Etu-Efeotor & Akpokodje, 1990)
Geologic Unit
Lithology
Age
Alluvium
Gravel, Sand, clay, silt
Freshwater Backswamp, meander belt
Sand, clay, some silt, gravel
Saltwater Mangrove Swamp and
Medium-fine sands, clay and Quaternary
backswamp
some silt
Active/abandoned beach ridges
Sand, clay, and some silt
Sombreiro-warri deltaic plain
Sand, clay, and some silt
The major aquiferous formation in the study area is the Benin Formation. It is about 2100m thick at the
basin centre and consists of coarse-medium grained sandstones, thick shales and gravels. The upper section of
the Benin Formation is the quaternary deposits which is about 40 – 150m thick and comprises of sand and
silt/clay with the later becoming increasingly more prominent seawards (Etu-Efeotor & Akpokodje, 1990). The
formation consists of predominantly freshwater continental friable sands and gravel that have excellent aquifer
properties with occasional intercalations of claystone/shales (Olobaniyi & Oweyemi, 2006). According to EtuEfeotor (1981), Etu-Efeotor & Akpokodje (1990), Offodile (2002), Udom et al (2002), the Benin Formation is
highly permeable, prolific and productive and is the most extensively tapped aquifer in the Niger Delta. All the
boreholes in the study area are drilled into the Benin Formation. The Benin Formation consists of fluvial and
lacustrine deposits deposits whose thicknesses are variable but generally exceed 1970 meters (Asseez, 1989).
The lithologies of the Benin Formation include sands, silts, gravel and clayey intercalations. The sands are fine
to coarse-grained, gravelly, poorly sorted and sub-angular to well rounded. According to Onyeagocha (1980),
the rocks of the Benin Formation are made up of about 95 – 99% quartz grains, Na+K – Mica 1 -2.5%, feldspar
0.5 1.0% and dark minerals 2.3%. These minerals are loosely bound by calcite and silica cement. The clayey
intercalations have given rise to multi-aquifer systems in the area.
Fig.1: Location Map of the Study Area
www.theijes.com
The IJES
Page 137
3. Assessment of Static Water Level Dynamics…
Methods of Study
Measurement of Static Water Levels
Static Water Level (SWL) is the level at which water stands in a well or unconfined aquifer when no
water is being removed from it either by pumping or by flow. It is usually expressed as the distance from the
ground surface (or a measuring point near the ground surface) to the water level in the well.
Static Water Levels (in unconfined aquifers) in the study area were measured and recorded with
electronic dip meter. The electronic dip meter consists of a graduated tape, usually in meters and feet with a
sensor or electrode attached to the lower portion. The sensor (electrode) is lowered into the boreholes and as it
touches the water, the electric circuit is completed and a bulb on the cable reel lights up or a whistling noise or
beep is activated. The depth to water level is now read out and recorded. The water level data determined in
boreholes in different geomorphologic units in the area are given in Table 2 below:
II. RESULTS
Table 2: Static water levels and borehole locations in the study area.
S/No.
Location
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
Ahoada
Ogbo
Edocha
Abua
Ndoni
Idu
Ebubu
Omoku
Obie
Erema
Ubeta
Obagi
Bassambiri
Atubo
Nembe
Ogbia
Brass
Otegila
Okoroba
Amakalakala
Otugidi
Otuesaga
Akassa
Kolo
Onne
(NAFCON)
Bodo
Buan
Alesa Eleme
Ebubu
Bane
Bori
Kpor
Beeri
67
68
69
70
71
72
Bolo 1
Kalio-Ama
Abam Ama
Okujagu
George Ama
Ogoloma
www.theijes.com
S.W.L
(m)
7.2
7.0
4.26
3.3
7.55
6.2
S/No.
Location
S.W.L (m)
Baa Lenku
Bien Gwara
Baan
Sii Babble
Uegwere
Tombia
Abonnema
Bakana
Ke
Abissa
Bille
Buguma
Krakrama
Abalama
Isiokpo
Ogbakiri
Omarelu
Egbede
Elele
Igbodo
Ulakwo
Opiro
Rumuonye
Chokocho
Egwi
Odagwa
Okehi
Obite
Egbeke Nwuba
Umuechem
Rumuewhor
Okrika
Ibuluya-Dikibo
10
9.14
6.1
9.45
5.4
4.52
2.3
1.25
2.16
0.34
0.61
3.6
7.1
2.5
0.69
4.0
0.0
9.14
0.91
12.19
0
NA
7.49
3.23
6.1
7.57
6.1
15.24
14.02
9.14
10.41
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
5.49
6.5
Artesian
5.48
0.61
0.9
5.0
97
98
99
100
101
102
103
Amarata
Ukubie
Tebidaba
Aguobiri
Koluama
Olegbobiri
Gbaran
3.7
7.6
15.24
5.79
5.49
0.8
1.37
The IJES
15.24
11.9
15.24
25
18.2
13
22
10.3
8.25
4.57
24.23
17.68
9.14
10.26
5.5
11.14
8.2
6.55
1.01
2.04
3.6
0.91
6.7
4.37
Page 138
4. Assessment of Static Water Level Dynamics…
S/No.
Location
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
Ogu
Daka-ama
Kalaibiama
Bonny
Iloma Opobo
Gborokiro
Ikuru
Nkoro
Abalamabie
Queens Town
Minima Opobo
Oloma II
Oloma I
NDBDA
Borokiri
Govt. House
Agbere Odoni
Ekeremor
Toru Ndoro
Torofani
Ofoni
Amabulou
Letugbene
Forupa
S.W.L
(m)
3.05
1.2
2.44
3.0
1.6
2.5
2.5
1.5
1.0
3.0
5.49
2.7
9
4
S/No.
Location
S.W.L (m)
104
105
106
107
108
109
110
111
112
113
Igbogene
Okolobiri
Isampou
Odi
Kaiama
Agudama-Epie
Oporoma
Korokorosei
Yenagoa
Forupa
5.64
7.62
4.57
1.91
3.0
5.79
4.6
3.7
5.5
1.0
5.6
1.2
1.0
5.5
4.0
2.1
1.5
1.0
III. DISCUSSION OF RESULTS
Groundwater level varies in the area. It is closer to the surface in the coastal areas and deeper as one
goes into the hinterland. It also varies with nearness to rivers and creeks. The Sombreiro Deltaic Plain and the
Coastal Plain Sands area recorded water level at greatest depth in the region. The maximum static water level in
the study area occurs around Ulakwo, at 18.2 meters below ground surface and Erema, 15.24 meters below
ground surface in the northern parts of the study area (Table 2). Values of static water level decrease in the
central parts to 3.7m, 3.23m and 2.3m for Omoku, Bodo and Abonema respectively. The value approaches near
surface in the southern parts and near the coast, 0.34m at Abissa, 0.69m at Brass and zero at Akassa. Artesian
conditions prevail in places where a thick clay sequence completely seals the underlying sandy aquifer over a
long lateral distance with sufficient confining pressure as in the very deep wells at Bonny or in the perched
aquifers in the clayey southern parts of the study area like Abam Ama, Old GRA and Iva Valley, Port Harcourt.
On a regional scale therefore, the static water levels appear to decrease fairly systematically from the
north to the south. North of the study area can therefore be regarded as the recharge area while the south is the
discharge area. Oteze (1983) observed that in Nigeria, available records on groundwater levels are those made
immediately after drilling and those undertaken during specific studies. Systematic water level measurements
over a long period of time are rare. Table 2 shows the static water levels in some locations in the study area
while Figure 2 is a static water level map of the area from where the regional groundwater flow pattern can be
inferred. Most of these boreholes were drilled during the National Borehole Programme (1980 – 1984). It
clearly shows that the major regional direction of groundwater flow is from north to south. Changes in
groundwater flow directions which occur at some places in the southeast, northwest and northeast, generally
serve localized discharge areas. The resultant flow path eventually joins and feeds the major regional northsouth flow direction. This flow pattern (local and regional) is generally consistent with the geology and
stratigraphy of the area. Outcrops of older rocks in the north serve as recharge areas, while recent sediments
form the discharge areas in the south.
www.theijes.com
The IJES
Page 139
5. Assessment of Static Water Level Dynamics…
IV. CONCLUSION
This study revealed that the maximum static water level in the study area occurs around Ulakwo, at
18.2 meters below ground surface and at Erema, 15.24 meters below ground surface in the northern parts of the
study area. It was also observed that values of static water level decrease in the central parts to 3.7m in Omoku,
3.23m at Bodo and 2.3m for Abonema, respectively. The value approaches near surface in the southern parts
and near the coast, 0.34m at Abissa, 0.69m at Brass and zero at Akassa. Artesian conditions also prevail in
places where a thick clay sequence completely seals the underlying sandy aquifer over a long lateral distance
with sufficient confining pressure as in the very deep wells at Bonny or in the perched aquifers in the clayey
southern parts of the study area. It was also noticed that the major regional direction of groundwater flow is
from north to south. Changes in groundwater flow directions which occur at some places in the southeast,
northwest and northeast, generally serve localized discharge areas. The resultant flow path eventually joins and
feeds the major regional north-south flow direction. This flow pattern (local and regional) is generally consistent
with the geology and stratigraphy of the Niger Delta.
www.theijes.com
The IJES
Page 140
6. Assessment of Static Water Level Dynamics…
REFERENCES
[1].
[2].
[3].
[4].
[5].
[6].
[7].
[8].
[9].
[10].
[11].
[12].
[13].
[14].
[15].
[16].
[17].
[18].
[19].
[20].
[21].
[22].
[23].
[24].
[25].
[26].
[27].
[28].
Ajibade, O.M; Omosanya, K.O and Odunsi, G.O (2011). Groundwater potability and flow direction of urban aquifer, Ibadan,
Southwestern Nigeria. Water Resources, 21:38 - 56
Amadi, P.A; Ofoegbu, C.O and Morrison, T (1989). Hydrogeochemical assessment of groundwater quality in parts of the Niger
Delta, Nigeria. Environ. Geol. Water Sci., Vol.14 (3):195 - 202
Amajor,
L. C (1989). Geological appraisal of groundwater exploitation in the Eastern Niger Delta, In: C. O Ofoegbu (ed). Groundwater
and Mineral Resources of Nigeria: Braunschweig/Weisbaden, Friedr Vieweg and Sihn, 85 - 100 pp.
Amajor,
L.C (1987). Paleocurrent, petrography and provenance analysis of the Ajali Sandstone (Upper Cretaceous), Southern Benue
Trough, Nigeria. Sedimentary Geology, 54:46 - 60
Asseez, L.O. (1989). Review of the stratigraphy, sedimentation and structure of the Niger Delta. In: C.A Kogbe (ed.) Geology of
Nigeria. Rockview Nigeria Limited, pp311 -324
Edet, A.E (1993). Groundwater quality assessment in parts of Eastern Niger Delta, Nigeria. Environmental Geology (22):41-46.
Etu – Efeotor, J.O and Odigi, M.I (1983). Water supply problems in the eastern Niger Delta. Journal of Mining and Geology,
Vol.20, pp183 – 193
Etu-Efeotor, J.O and Akpokodje, E.G (1990). Aquifer systems of the Niger Delta. J. Mining Geol. Vol.26 (2), pp279-285
Etu-Efeotor, J.O. (1981). Preliminary hydrogeochemical investigation of subsurface waters in parts of the Niger Delta. Jour. Min.
Geol. (18)(1):103 – 105
Hem, J.D (1989). Study and interpretation of the chemical characteristics of natural water. USGS Water Supply Paper, 2254,
249pp
Matheis, G (1985). The properties of groundwater. Wiley, New York, USA.
Merki, J.P.(1970). Structural Geology of the Cenozoic Niger Delta. African Geology. University of Ibadan Press.pp251-268
Murat, R.C (1970). Stratigraphy and Paleogeography of the Cretaceous and Lower Tertiary in Southern Nigeria. In: Dessauvagie,
T.T J and Whiteman, A.J (eds.). African Geology, University of Ibadan Press, Ibadan, Nigeria. Pp251 – 266.
Ngah, S.A (2002). Patterns of groundwater chemistry in parts of the Niger Delta. 38 th Annual International Conference of
Nigerian Mining and Geosciences Society (NMGS), Abst. P39.
Ngah, S.A and Allen, R.O (2006). High-bi-valent iron contaminants in groundwaters of the Niger Delta: their genesis and
distribution. African Journal of Environ. Pollut. Health. 51:35 – 47.
Nwankwoala, H.O and Udom, G.J (2009). Predictive mathematical modeling of iron in the groundwater systems of Eagle
Islands, Port Harcourt, Nigeria. Water Resources, 19: 26 – 31
Offodile, M.E. (2002) Groundwater study and development in Nigeria. Mecon Eng. Services Ltd Jos, Nigeria, pp239 – 345
Olobaniyi, S.B and Owoyemi, F.B. (2006) Characterization by factor analysis of the chemical facies of groundwater in the
Deltaic Plain Sands aquifers of Warri, Western Niger Delta, Nigeria. African Journal of Science and Technology (AJST), Science
and Engineering Series, (7)(1):73 – 81
Onyeagocha, A.C (1980). The petrology and depositional environment of the Benin Formation. Nig. Journal of Min. Geol.,
17(2):147 - 151
Reyment, R.A (1965). Aspects of Geology of Nigeria. University of Ibadan Press, Nigeria. 133p
Rivers State Water Board (RSWB) (1994). Feasibility Report for the Port Harcourt Metropolitan Water Project. February 1994.
Short, K.C and Stauble, A.J (1967). Outline geology of the Niger Delta. Bull. Am. Ass. Petrol Geol. 54:761 – 779
Udom, G.J (2004). Regional hydrogeology of Akwa Ibom State, Nigeria using lithological, pump Testing and Resistivity Data.
Unpublished Ph.D Thesis, University of Calabar.
Udom, G.J ; Etu-Efeotor, J.O and Esu, E.O (1999). Hydrogeochemical Characteristics of groundwater in parts of Port Harcourt
and Tai-Eleme Local Government Areas. Global Journal of Pure and Applied Sciences, 5(5):545 – 552.
Udom, G.J ; Ushie, F.A & Esu, E.O (2002). A geochemical survey of groundwater in Khana and Gokana Local Government
Areas of Rivers State. Journal of Applied Science and Enviromental Management. 6(1):53 – 59
Ujile, A.A (2001). Modeling iron, chloride, salinity as groundwater contaminants in parts of the Niger Delta. NSE Technical
Transactions, Vol. 36 (2): 24 – 33
World
Health Organization (WHO) (2008). Guidelines for Drinking Water Quality. Vol. 2. Recommendations, Geneva, 67p
Zhao, L.S & Zhang, B.R (1988). Geochemistry (in Chinese). Geology Press, Beijing, 401p
www.theijes.com
The IJES
Page 141