Approach to vehicle emission modelling
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This document discusses different approaches to vehicle emission modeling, including emission inventory models, dispersion modeling, and receptor modeling. It provides details on some commonly used models, including CORINAIR and IPIECA toolkit for emission inventory, ISCST3 and Calpuff for dispersion modeling, and Chemical Mass Balance (CMB) for receptor modeling. The goal of these different approaches is to estimate pollutant loads from vehicles and predict their impact on ambient air quality.
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policy implications for regional mobile source emissions,
particularly inventories associated with transportation
conformity. The methodology of MOVES is based on a discrete
binning approach compared to average speed based approach
employed in traditional emission models. The scope of MOVES
has been expanded to estimate emissions at national, regional
and project scales, inclusion of number of pollutants and
emission processes, alternative vehicle and fuel types. MOVES
has an extensive database reflective of real world driving
conditions developed by assessing millions of vehicles for a
long period of time. Detailed description of methodology, scope
and data of MOVES is presented in this paper. Using a case
study of Cook County, Illinois emission estimates of green
house gas namely carbon dioxide (CO2) and a criteria
pollutant namely nitrogen oxide (NOx) are estimated by
MOVES and compared to its predecessor, MOBILE6.2. The
fundamental differences in emission estimation methodology
between the two models are the reasons for different
estimation results, with MOVES believed to be more accurate
owing to its theoretical superiority over MOBILE.
Air Pollution Indices.pptx
This document discusses air pollution indices and how they are used. Air pollution indices transform weighted air pollution parameter values like SPM, SO2, CO, NO2, O3, and hydrocarbons into a single number to simply and clearly indicate the air quality level. They inform the public about daily pollution changes, help compare cities, and evaluate enforcement policies. Common calculation methods include relating parameters to standards, averaging ratios to standards, and assigning sub-index values within parameter ranges. Air pollution indices provide a useful way to track air quality changes and facilitate comparisons.
Air Quality Monitoring Using Model: A Review
Air pollution is a global environmental challenge that has continued to receive worldwide attention despite the recent decline in concentration of atmospheric pollutants following stringent environmental protection regulations. The major source of this pollution remains fossil fuels; hence the urgent need for cleaner energy sources. This study presents a review of the models applied in monitoring ambient air quality. The primary aim of air pollution modeling is to identify and quantitatively characterize pollutant emission at its source and subsequent dispersion through the atmosphere, subject to meteorological conditions, physical and chemical transformations. The common models and model assumptions for modeling air pollution and quality were critically reviewed and analyzed in this work for application in both forecasting and estimation of air pollutants on the basis of considered causes and in air quality assessment and air pollution control.
Am4103223229
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
Forecasting Municipal Solid Waste Generation Using a Multiple Linear Regressi...
- The document describes developing a multiple linear regression model to forecast municipal solid waste generation based on factors like population, population density, education levels, access to services, and income levels.
- The model was developed using data from various municipalities in Italy. Exploratory data analysis was conducted to determine linear relationships between waste generation and predictors.
- The linear regression model achieved a high R-squared value of 91.81%, indicating a close fit to the data. Various error metrics like MAE, MSE and RMSE were calculated to evaluate model performance.
- The regression model provides a simple yet accurate means of predicting municipal solid waste that requires minimal data and can be generalized to other locations.
Managing Air Quality During Regulatory Changes
This paper centers on why certain agencies have approved the use of the new models ahead of publication of the final rule.
wang2009.pdf
This document presents a bottom-up methodology to estimate vehicle emissions in Beijing, China at the grid level. The methodology combines vehicle emission factors based on speed from the MOBILE5B-China model with vehicle activity data from a travel demand model. Applying this approach, total emissions of HC, CO and NOx in Beijing's urban area in 2005 were estimated to be 13.33×104, 100.02×104 and 7.55×104 tons respectively. The grid-based estimates provide a more accurate spatial distribution of emissions compared to typical macro-scale approaches used in China.
IRJET- Study on Vehicular Emission in Trivandrum Urban Centre
This study analyzes vehicular emissions in Thiruvananthapuram, India (Trivandrum) using air quality and vehicle travel data. Three scenarios are considered - "Do Nothing", "Business as Usual", and "Sustainable Urban Transit". Five cases of emission reduction measures are analyzed, including mass rapid transit systems and increased compressed natural gas vehicles. Emissions of CO2, PM2.5, NOx and other pollutants are forecasted for 2025 and 2035 under each scenario and case. The results show reductions in emissions from the measures considered, with mass rapid transit and 100% compressed natural gas vehicles performing best. Air quality index values are also predicted, indicating worsening pollution without interventions
Regressions allow development of compressor cost estimation models print th...
This article presents 10 regression models to estimate costs of different components for pipeline compressor stations with varying capacities in different US regions. The models show large cost differences between regions, with the Western region having the highest costs. The models also indicate that all compressor station cost components have economies of scale, with unit costs decreasing as capacity increases. Limitations of the models include uneven data distribution and missing variables.
Use of Probabilistic Statistical Techniques in AERMOD Modeling Evaluations
The advent of the short term National Ambient Air Quality Standards (NAAQS) prompted modelers to reassess the common practices in dispersion modeling analyses. The probabilistic nature of the new short term standards also opens the door to alternative modeling techniques that are based on probability. One of these is the Monte Carlo technique that can be used to account for emission variability in permit modeling.
Currently, it is assumed that a given emission unit is in operation at its maximum capacity every hour of the year. This assumption may be appropriate for facilities that operate at full capacity most of the time. However, in most cases, emission units operate at variable loads that produce variable emissions. Thus, assuming constant maximum emissions is overly conservative for facilities such as power plants that are not in operation all the time and which exhibit high concentrations during very short periods of time.
Another element of conservatism in NAAQS demonstrations relates to combining predicted concentrations from the AMS/EPA Regulatory Model (AERMOD) with observed (monitored) background concentrations. Normally, some of the highest monitored observations are added to the AERMOD results yielding a very conservative combined concentration.
A case study is presented to evaluate the use of alternative probabilistic methods to complement the shortcomings of current dispersion modeling practices. This case study includes the use of the Monte Carlo technique and the use of a reasonable background concentration to combine with the AERMOD predicted concentrations. The use of these methods is in harmony with the probabilistic nature of the NAAQS and can help demonstrate compliance through dispersion modeling analyses, while still being protective of the NAAQS.
APPLYING FIXED BOX MODEL TO PREDICT THE CONCENTRATIONS OF (PM10) IN A PART OF...
This document describes applying a fixed box model to predict concentrations of particulate matter (PM10) in part of Al-Kut City, Iraq. The model divides the area into a rectangular box and estimates pollutant concentration based on emission sources, wind speed, and mixing height. Input parameters were calculated based on road, vehicle, construction, and domestic emission inventories. Calculated emission capacities were adjusted based on field surveys. The model was run under two mixing height scenarios and results were similar to portable equipment measurements, indicating the fixed box model is easy to use for evaluating air pollution in Al-Kut City.
Session 38 Xiaoliang Ma
This document summarizes research on integrating traffic and emission models to simulate the impacts of traffic on emissions. It describes:
1) Developing an approach to combine traffic simulation and emission models in a distributed way.
2) Proposing a method to calibrate microscopic emission models using aggregate emission measures.
3) Applying the integrated models to evaluate how different traffic demands and signal controls impact emissions.
120910 nasa satellite_outline
This document discusses the usefulness of satellite observations for air quality applications and regulatory requirements. It outlines six key air quality requirements that satellites can help address, such as determining compliance with air quality standards and identifying long-range pollution transport events. The document also notes how satellites can help improve emissions estimates, characterize long-range transport of pollution, and increase interaction between air quality and remote sensing scientists. However, it cautions that relating satellite aerosol optical depth measurements directly to ground-level PM concentrations currently has too much uncertainty for regulatory or public health applications.
ONLINE SCALABLE SVM ENSEMBLE LEARNING METHOD (OSSELM) FOR SPATIO-TEMPORAL AIR...
Environmental air pollution studies fail to consider the fact that air pollution is a spatio-temporal problem.
The volume and complexity of the data have created the need to explore various machine learning models,
however, those models have advantages and disadvantages when applied to regional air pollution analysis,
furthermore, most environmental problems are global distribution problems. This research addressed
spatio-temporal problem using decentralized computational technique named Online Scalable SVM
Ensemble Learning Method (OSSELM). Evaluation criteria for computational air pollution analysis
includes: accuracy, real time & prediction, spatio-temporal and decentralised analysis, we assert that these
criteria can be improved using the proposed OSSELM. Special consideration is given to distributed
ensemble to resolve spatio-temporal data collection problem (i.e. the data collected from multiple
monitoring stations dispersed over a geographical location). Moreover, the experimental results
demonstrated that the proposed OSSELM produced impressive results compare to SVM ensemble for air
pollution analysis in Auckland region.
ONLINE SCALABLE SVM ENSEMBLE LEARNING METHOD (OSSELM) FOR SPATIO-TEMPORAL AIR...
Environmental air pollution studies fail to consider the fact that air pollution is a spatio-temporal problem. The volume and complexity of the data have created the need to explore various machine learning models, however, those models have advantages and disadvantages when applied to regional air pollution analysis, furthermore, most environmental problems are global distribution problems. This research addressed spatio-temporal problem using decentralized computational technique named Online Scalable SVM Ensemble Learning Method (OSSELM). Evaluation criteria for computational air pollution analysis includes: accuracy, real time & prediction, spatio-temporal and decentralised analysis, we assert that these criteria can be improved using the proposed OSSELM. Special consideration is given to distributed ensemble to resolve spatio-temporal data collection problem (i.e. the data collected from multiple monitoring stations dispersed over a geographical location). Moreover, the experimental results demonstrated that the proposed OSSELM produced impressive results compare to SVM ensemble for air pollution analysis in Auckland region.
ONLINE SCALABLE SVM ENSEMBLE LEARNING METHOD (OSSELM) FOR SPATIO-TEMPORAL AIR...
Environmental air pollution studies fail to consider the fact that air pollution is a spatio-temporal problem.
The volume and complexity of the data have created the need to explore various machine learning models,
however, those models have advantages and disadvantages when applied to regional air pollution analysis,
furthermore, most environmental problems are global distribution problems. This research addressed
spatio-temporal problem using decentralized computational technique named Online Scalable SVM
Ensemble Learning Method (OSSELM). Evaluation criteria for computational air pollution analysis
includes: accuracy, real time & prediction, spatio-temporal and decentralised analysis, we assert that these
criteria can be improved using the proposed OSSELM. Special consideration is given to distributed
ensemble to resolve spatio-temporal data collection problem (i.e. the data collected from multiple
monitoring stations dispersed over a geographical location). Moreover, the experimental results
demonstrated that the proposed OSSELM produced impressive results compare to SVM ensemble for air
pollution analysis in Auckland region.
Similar to Approach to vehicle emission modelling (20)
AMBIENT AIR POLLUTION MODELLING IN PUDUCHERRY, INDIA
AMBIENT AIR POLLUTION MODELLING IN PUDUCHERRY, INDIA
Overview of U.S EPA New Generation Emission Model: MOVES
Overview of U.S EPA New Generation Emission Model: MOVES
Forecasting Municipal Solid Waste Generation Using a Multiple Linear Regressi...
Forecasting Municipal Solid Waste Generation Using a Multiple Linear Regressi...
IRJET- Study on Vehicular Emission in Trivandrum Urban Centre
IRJET- Study on Vehicular Emission in Trivandrum Urban Centre
Regressions allow development of compressor cost estimation models print th...
Regressions allow development of compressor cost estimation models print th...
Use of Probabilistic Statistical Techniques in AERMOD Modeling Evaluations
Use of Probabilistic Statistical Techniques in AERMOD Modeling Evaluations
APPLYING FIXED BOX MODEL TO PREDICT THE CONCENTRATIONS OF (PM10) IN A PART OF...
APPLYING FIXED BOX MODEL TO PREDICT THE CONCENTRATIONS OF (PM10) IN A PART OF...
ONLINE SCALABLE SVM ENSEMBLE LEARNING METHOD (OSSELM) FOR SPATIO-TEMPORAL AIR...
ONLINE SCALABLE SVM ENSEMBLE LEARNING METHOD (OSSELM) FOR SPATIO-TEMPORAL AIR...
ONLINE SCALABLE SVM ENSEMBLE LEARNING METHOD (OSSELM) FOR SPATIO-TEMPORAL AIR...
ONLINE SCALABLE SVM ENSEMBLE LEARNING METHOD (OSSELM) FOR SPATIO-TEMPORAL AIR...
ONLINE SCALABLE SVM ENSEMBLE LEARNING METHOD (OSSELM) FOR SPATIO-TEMPORAL AIR...
ONLINE SCALABLE SVM ENSEMBLE LEARNING METHOD (OSSELM) FOR SPATIO-TEMPORAL AIR...
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Pollution control in small and medium scale industry
1) Small and medium scale industries in India face challenges in complying with pollution control regulations due to lack of finances to invest in proper pollution control equipment.
2) Industries are classified as red, orange or green based on pollution levels, with some small industries unfortunately falling into the higher pollution red and orange categories.
3) Proper planning of industrial development needs to take pollution levels into account, considering factors like local meteorological conditions and the pollution handling capacity of local water systems.
Indoor air quality
Indoor air quality is influenced by emissions from building materials, products, combustion, and outdoor pollution infiltrating indoors. Common indoor pollutants can cause sick building syndrome symptoms. Passive sampling is a cost-effective technique for indoor air quality monitoring over long periods. Source control, ventilation, and air cleaning are strategies for reducing indoor pollutants, with source control being most effective. Air cleaners use mechanical filters, electronic methods, or ion generators to remove particulate and gaseous pollutants, with effectiveness depending on device efficiency and air flow rate. Activated carbon, zeolites, and chemisorbents can help filters remove gases and odors through adsorption and chemical reactions.
Air pollution control
This document discusses various methods for controlling air pollution from industrial sources. It describes controlling pollutants at their source through prevention, trapping, or altering pollutants before release. Common control methods for particulate pollutants include filtration, electrostatic precipitation, and wet scrubbers. Gaseous pollutants can be controlled through combustion, absorption, adsorption, or closed collection systems. The best approach is to prevent pollution at the source, but using equipment to destroy, alter or trap pollutants before emission is also effective.
Vehicular Pollution Management
Diesel exhaust is a major source of particulate air pollution that poses health risks. It consists mostly of soot, heavy hydrocarbons, and sulfates. While engine modifications have reduced emissions, additional control technologies are needed. Diesel particulate filters can trap over 90% of particles but require regeneration. Regeneration can be passive using catalyst coatings to lower the ignition temperature, or active through external heating. Catalytic fuel additives also help control particulate by promoting soot oxidation.
Strategy of control of urban air pollution
Vehicular emissions are the largest contributor to urban air pollution, accounting for 70% of emissions. A long-term strategy is needed to achieve clean air. The proposed strategy includes 6 steps: 1) Reduce need for car travel through better urban planning and public transport. 2) Reduce emissions from vehicles in use by promoting cleaner fuels and technologies. 3) Reduce emissions from household and commercial activities like refuse burning. 4) Improve industry performance through new technologies and compliance. 5) Fund research to improve understanding of air quality issues. 6) Improve planning to minimize exposure to pollution and encourage cleaner production.
Spectrophotometer meter
This document provides information about using a spectrophotometer for quantitative analysis. It discusses how spectrophotometers work based on the Beer-Lambert law relating absorbance of light to analyte concentration. The key components of a spectrophotometer are described including the light source, wavelength selector, sample cuvette, detector, and readout device. General procedures are outlined for preparing standard solutions to generate a calibration curve and determining concentrations of unknown samples.
Some critical facets in air pollution
The document discusses some critical issues with air pollution monitoring that can affect the reliability of the data generated. It summarizes that both the monitoring equipment and personnel play a role in data quality. Specifically, it notes that monitoring instruments often are not calibrated frequently enough and personnel are often not adequately trained. It also discusses challenges with calibrating equipment in the field and suggestions for improving the calibration process, including developing portable calibration devices. Overall, it argues that unreliable data can result if conditions of both the monitoring equipment and personnel are not properly addressed.
Slm_1
The document provides information about integrating sound level meters and measuring sound levels. It discusses decibels, frequency and time weighting, sound pressure levels, equivalent sound levels, and the key features and specifications of the SLM 100 sound level meter, including its data logging and plotting capabilities.
Shop floor monitoring
This document discusses monitoring toxic substances in the workplace. It defines hazard, risk, and safe exposure levels. The main routes toxic substances can enter the body are inhalation, skin contact, and ingestion, with inhalation being most common. Standards have been set for airborne concentrations of toxins. Factors like an individual's susceptibility and the physical properties of particles influence health effects. Measurements can be made using personal or stationary air sampling devices. When monitoring exposure, factors like what, who, how long, and how often to sample must be considered. Finally, if exposures exceed limits then controls like substitution, ventilation, protective equipment, and hygiene measures are recommended.
Quality assurance and quality control
Quality assurance and quality control programs are necessary to ensure the reliability and accuracy of analytical environmental data. An inter-laboratory study by the EPA showed wide variation in nutrient concentration measurements between laboratories. Measurement of total dissolved solids and electrical conductivity also showed significant variation between laboratories. Shewhart control charts can be used to monitor the statistical control of analytical procedures and identify issues by tracking results from quality control samples against mean values and standard deviations. Key aspects of a quality assurance program include sample handling procedures, standardized analytical methods, analyst training, instrument maintenance, calibration procedures, analytical quality control tests, data management, and control chart monitoring.
Preventive measures for occupational
The document discusses preventive measures for occupational diseases from an Ayurvedic perspective. It outlines how modern industrialization has increased pollution and its health impacts. Ayurveda focuses on strengthening immunity to prevent occupational disorders and optimize worker output. Various Ayurvedic concepts for immunity like Bala (strength), Ojas (essential bodily substance), and Rasayana (rejuvenation therapies) are explained. Specific herbs and therapies that boost immunity for general health or target certain diseases are also described. The document advocates an Ayurvedic approach to immunity building to prevent occupational illnesses.
Pm10 measmnt
The document discusses particulate matter monitoring techniques. It describes size conventions for inhalable, thoracic, and respirable particles. Initially, total suspended particulate matter was measured, but PM10 and PM2.5 samplers were later developed to better correlate with health impacts. The document also describes India's indigenous respirable dust sampler system and its variants, which provide affordable and low-maintenance particulate sampling. Proper filter handling and sampling procedures are outlined.
Ozone
The document discusses ozone monitoring using UV photometry. It describes how ozone absorbs UV light at 254 nm and how an analyzer measures the difference between ambient air and scrubbed air to determine the ozone concentration. The analyzer is calibrated against EPA transfer standards. Interferences from water vapor can occur but heated scrubbers can help. The document also provides details on the operation, theory, specifications and siting of the EC9810 ozone monitor.
Nitrogen oxide monitoring
This document discusses methods for monitoring nitrogen oxide pollutants nitric oxide (NO) and nitrogen dioxide (NO2). It provides details on manual and automated techniques for measuring NO and NO2 separately or collectively as nitrogen oxides (NOx). The modified Na-Arsenite method is described as a manual determination technique for NO2 based on a colorimetric reaction. Step-by-step procedures are outlined for sampling, developing a calibration curve, and calculating NO2 concentrations in air samples. Continuous automated analyzers and other available methods are also briefly mentioned.
Monitoring of inorganic ions
This document describes methods for monitoring inorganic ions in ambient air using ion chromatography. Key points:
- Ion chromatography is described as the preferred technique for simultaneously analyzing sulfate, nitrate, chloride, and fluoride in ambient air samples. It allows for rapid sequential analysis without using hazardous reagents.
- The document outlines sample collection methods using high-volume samplers to collect particulate matter on filters. Filters are extracted ultrasonically to analyze ions.
- Calibration procedures and methods for establishing retention time windows and calibration curves are provided. Precision and accuracy are within 20% for analyzed ions.
Minutes of brain storming session on air pollution load carrying capacity of ...
Minutes of brain storming session on air pollution load carrying capacity of atmosphere of satna rewa - kvmore region
Measurement of respirable suspended pm10
The document provides details on measuring respirable suspended particulate matter (PM10) in ambient air using a cyclone flow technique. It describes how air is drawn through a size-selective inlet that collects particles under 10 micrometers in diameter on a filter. The mass of collected particles is determined by the difference in pre- and post-sampling filter weights, and concentration is calculated based on sampled air volume. The document outlines the equipment, procedures, calibration standards, and quality controls for accurate PM10 measurement according to this standardized method.
Measurement of hydrogen ion concentration (p h)
This document discusses pH and methods of measuring pH. It begins with an overview of pH and what it measures. It then describes the pH scale and how pH values are calculated from hydrogen ion concentration. Various pH indicators and their color changes in different pH ranges are presented in a table. The document mainly focuses on using a pH meter with glass electrodes to accurately measure pH. It provides details on operating, calibrating, and storing measurements with a pH meter. Buffer solutions used for calibration are also described.
Maintenance
The document provides guidance on maintaining various air quality instruments. It discusses maintaining the high volume respirable dust sampler by keeping records, replacing carbon brushes regularly, cleaning the blower periodically, inspecting the commutator, and greasing parts. For brushless blowers, it notes to check and tighten v-belts, replace them yearly, and maintain proper voltage, mounting, and bearings. The document also provides tips for maintaining the manometer assembly, cyclone assembly, o-rings, gaskets and replacing parts periodically. Finally, it discusses generally checking hardware, calibrations and ensuring a stable power supply.
Maintenance of high volume
The document provides guidelines for maintaining a high volume respirable dust sampler. It recommends keeping a log book to record blower servicing. Carbon brushes should be replaced every 5mm or in pairs. The blower should be cleaned with alcohol every 1000 hours. The commutator, manometer water, cyclone, O-rings, gaskets and other parts should be checked and cleaned periodically. General maintenance includes tightening hardware, checking the time totalizer, electrical components and stocking spare parts. Calibration of instruments should also be done regularly.
More from ECRD2015 (20)
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一比一原版西澳大学毕业证学历证书如何办理
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留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
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【关于价格问题（保证一手价格）】
我们所定的价格是非常合理的，而且我们现在做得单子大多数都是代理和回头客户介绍的所以一般现在有新的单子 我给客户的都是第一手的代理价格，因为我想坦诚对待大家 不想跟大家在价格方面浪费时间
对于老客户或者被老客户介绍过来的朋友，我们都会适当给一些优惠。
Formulation of aramang baked products enriched with malunggay
The modification of an existing product or the formulation of a new product to fill a newly identified market niche or customer need are both examples of product development. This study generally developed and conducted the formulation of aramang baked products enriched with malunggay conducted by the researchers. Specifically, it answered the acceptability level in terms of taste, texture, flavor, odor, and color also the overall acceptability of enriched aramang baked products. The study used the frequency distribution for evaluators to determine the acceptability of enriched aramang baked products enriched with malunggay. As per sensory evaluation conducted by the researchers, it was proven that aramang baked products enriched with malunggay was acceptable in terms of Odor, Taste, Flavor, Color, and Texture. Based on the results of sensory evaluation of enriched aramang baked products proven that three (3) treatments were all highly acceptable in terms of variable Odor, Taste, Flavor, Color and Textures conducted by the researchers.
Monitor indicators of genetic diversity from space using Earth Observation data
Genetic diversity within and among populations is essential for species persistence. While targets and indicators for genetic diversity are captured in the Kunming-Montreal Global Biodiversity Framework, assessing genetic diversity across many species at national and regional scales remains challenging. Parties to the Convention on Biological Diversity (CBD) need accessible tools for reliable and efficient monitoring at relevant scales. Here, we describe how Earth Observation satellites (EO) make essential contributions to enable, accelerate, and improve genetic diversity monitoring and preservation. Specifically, we introduce a workflow integrating EO into existing genetic diversity monitoring strategies and present a set of examples where EO data is or can be integrated to improve assessment, monitoring, and conservation. We describe how available EO data can be integrated in innovative ways to support calculation of the genetic diversity indicators of the GBF monitoring framework and to inform management and monitoring decisions, especially in areas with limited research infrastructure or access. We also describe novel, integrative approaches to improve the indicators that can be implemented with the coming generation of EO data, and new capabilities that will provide unprecedented detail to characterize the changes to Earth’s surface and their implications for biodiversity, on a global scale.
World earth day powe point presentation 2024
Earth Day How has technology changed our life?
Thinkers/Inquiry • How has our ability to think and inquire helped to advance technology?
Vocabulary • Nature Deficit Disorder~ A condition that some people maintain is a spreading affliction especially affecting youth but also their adult counterparts, characterized by an excessive lack of familiarity with the outdoors and the natural world. • Precautionary Principle~ The approach whereby any possible risk associated with the introduction of a new technology is largely avoided, until a full understanding of its impact on health, environment and other areas is available.
What is technology? • Brainstorm a list of technology that you use everyday that your parents or grandparents did not have. • Compare your list with a partner.
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◇面对父母的压力，希望尽快拿到；
◇不清楚认证流程以及材料该如何准备；
◇回国时间很长，忘记办理；
◇回国马上就要找工作，办给用人单位看；
◇企事业单位必须要求办理的
◇需要报考公务员、购买免税车、落转户口
◇申请留学生创业基金
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
Kinetic studies on malachite green dye adsorption from aqueous solutions by A...
Kinetic studies on malachite green dye adsorption from aqueous solutions by A...Open Access Research Paper
Water polluted by dyestuffs compounds is a global threat to health and the environment; accordingly, we prepared a green novel sorbent chemical and Physical system from an algae, chitosan and chitosan nanoparticle and impregnated with algae with chitosan nanocomposite for the sorption of Malachite green dye from water. The algae with chitosan nanocomposite by a simple method and used as a recyclable and effective adsorbent for the removal of malachite green dye from aqueous solutions. Algae, chitosan, chitosan nanoparticle and algae with chitosan nanocomposite were characterized using different physicochemical methods. The functional groups and chemical compounds found in algae, chitosan, chitosan algae, chitosan nanoparticle, and chitosan nanoparticle with algae were identified using FTIR, SEM, and TGADTA/DTG techniques. The optimal adsorption conditions, different dosages, pH and Temperature the amount of algae with chitosan nanocomposite were determined. At optimized conditions and the batch equilibrium studies more than 99% of the dye was removed. The adsorption process data matched well kinetics showed that the reaction order for dye varied with pseudo-first order and pseudo-second order. Furthermore, the maximum adsorption capacity of the algae with chitosan nanocomposite toward malachite green dye reached as high as 15.5mg/g, respectively. Finally, multiple times reusing of algae with chitosan nanocomposite and removing dye from a real wastewater has made it a promising and attractive option for further practical applications.
Download the Latest OSHA 10 Answers PDF : oyetrade.com
Latest OSHA 10 Test Question and Answers PDF for Construction and General Industry Exam.
Download the full set of 390 MCQ type question and answers - https://www.oyetrade.com/OSHA-10-Answers-2021.php
To Help OSHA 10 trainees to pass their pre-test and post-test we have prepared set of 390 question and answers called OSHA 10 Answers in downloadable PDF format. The OSHA 10 Answers question bank is prepared by our in-house highly experienced safety professionals and trainers. The OSHA 10 Answers document consists of 390 MCQ type question and answers updated for year 2024 exams.
原版制作(Newcastle毕业证书)纽卡斯尔大学毕业证在读证明一模一样
学校原件一模一样【微信：741003700 】《(Newcastle毕业证书)纽卡斯尔大学毕业证》【微信：741003700 】学位证，留信认证（真实可查，永久存档）原件一模一样纸张工艺/offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原。
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
【主营项目】
一.毕业证【q微741003700】成绩单、使馆认证、教育部认证、雅思托福成绩单、学生卡等！
二.真实使馆公证(即留学回国人员证明,不成功不收费)
三.真实教育部学历学位认证（教育部存档！教育部留服网站永久可查）
四.办理各国各大学文凭(一对一专业服务,可全程监控跟踪进度)
如果您处于以下几种情况：
◇在校期间，因各种原因未能顺利毕业……拿不到官方毕业证【q/微741003700】
◇面对父母的压力，希望尽快拿到；
◇不清楚认证流程以及材料该如何准备；
◇回国时间很长，忘记办理；
◇回国马上就要找工作，办给用人单位看；
◇企事业单位必须要求办理的
◇需要报考公务员、购买免税车、落转户口
◇申请留学生创业基金
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
快速办理(Manchester毕业证书)曼彻斯特大学毕业证录取通知书一模一样
学校原件一模一样【微信：741003700 】《(Manchester毕业证书)曼彻斯特大学毕业证》【微信：741003700 】学位证，留信认证（真实可查，永久存档）原件一模一样纸张工艺/offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原。
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
【主营项目】
一.毕业证【q微741003700】成绩单、使馆认证、教育部认证、雅思托福成绩单、学生卡等！
二.真实使馆公证(即留学回国人员证明,不成功不收费)
三.真实教育部学历学位认证（教育部存档！教育部留服网站永久可查）
四.办理各国各大学文凭(一对一专业服务,可全程监控跟踪进度)
如果您处于以下几种情况：
◇在校期间，因各种原因未能顺利毕业……拿不到官方毕业证【q/微741003700】
◇面对父母的压力，希望尽快拿到；
◇不清楚认证流程以及材料该如何准备；
◇回国时间很长，忘记办理；
◇回国马上就要找工作，办给用人单位看；
◇企事业单位必须要求办理的
◇需要报考公务员、购买免税车、落转户口
◇申请留学生创业基金
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
REPORT-PRESENTATION BY CHIEF SECRETARY, ANDAMAN NICOBAR ADMINISTRATION IN OA ...
Green Tribunal Andaman
Biomimicry in agriculture: Nature-Inspired Solutions for a Greener Future
Presentation made for the Webinar Series on Biomimicry for sustainability on 1st June 2024 organized by Green Building Council Sri Lanka
一比一原版（Glasgow毕业证）英国格拉斯哥大学毕业证如何办理
原件一模一样【微信：WP101A】【（Glasgow毕业证）英国格拉斯哥大学毕业证学位证成绩单】【微信：WP101A】（留信学历认证永久存档查询）采用学校原版纸张、特殊工艺完全按照原版一比一制作（包括：隐形水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠，文字图案浮雕，激光镭射，紫外荧光，温感，复印防伪）行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备，十五年致力于帮助留学生解决难题，业务范围有加拿大、英国、澳洲、韩国、美国、新加坡，新西兰等学历材料，包您满意。
【业务选择办理准则】
一、工作未确定，回国需先给父母、亲戚朋友看下文凭的情况，办理一份就读学校的毕业证【微信：WP101A】文凭即可
二、回国进私企、外企、自己做生意的情况，这些单位是不查询毕业证真伪的，而且国内没有渠道去查询国外文凭的真假，也不需要提供真实教育部认证。鉴于此，办理一份毕业证【微信：WP101A】即可
三、进国企，银行，事业单位，考公务员等等，这些单位是必需要提供真实教育部认证的，办理教育部认证所需资料众多且烦琐，所有材料您都必须提供原件，我们凭借丰富的经验，快捷的绿色通道帮您快速整合材料，让您少走弯路。
留信网认证的作用:
1:该专业认证可证明留学生真实身份【微信：WP101A】
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
→ 【关于价格问题（保证一手价格）
我们所定的价格是非常合理的，而且我们现在做得单子大多数都是代理和回头客户介绍的所以一般现在有新的单子 我给客户的都是第一手的代理价格，因为我想坦诚对待大家 不想跟大家在价格方面浪费时间
对于老客户或者被老客户介绍过来的朋友，我们都会适当给一些优惠。
选择实体注册公司办理，更放心，更安全！我们的承诺：可来公司面谈，可签订合同，会陪同客户一起到教育部认证窗口递交认证材料，客户在教育部官方认证查询网站查询到认证通过结果后付款，不成功不收费！
办理（Glasgow毕业证）英国格拉斯哥大学毕业证学位证【微信：WP101A 】外观非常精致，由特殊纸质材料制成，上面印有校徽、校名、毕业生姓名、专业等信息。
办理（Glasgow毕业证）英国格拉斯哥大学毕业证学位证【微信：WP101A 】格式相对统一，各专业都有相应的模板。通常包括以下部分：
校徽：象征着学校的荣誉和传承。
校名:学校英文全称
授予学位：本部分将注明获得的具体学位名称。
毕业生姓名：这是最重要的信息之一，标志着该证书是由特定人员获得的。
颁发日期：这是毕业正式生效的时间，也代表着毕业生学业的结束。
其他信息：根据不同的专业和学位，可能会有一些特定的信息或章节。
办理（Glasgow毕业证）英国格拉斯哥大学毕业证学位证【微信：WP101A 】价值很高，需要妥善保管。一般来说，应放置在安全、干燥、防潮的地方，避免长时间暴露在阳光下。如需使用，最好使用复印件而不是原件，以免丢失。
综上所述，办理（Glasgow毕业证）英国格拉斯哥大学毕业证学位证【微信：WP101A 】是证明身份和学历的高价值文件。外观简单庄重，格式统一，包括重要的个人信息和发布日期。对持有人来说，妥善保管是非常重要的。
Optimizing Post Remediation Groundwater Performance with Enhanced Microbiolog...
Results of geophysics and pneumatic injection pilot tests during 2003 – 2007 yielded significant positive results for injection delivery design and contaminant mass treatment, resulting in permanent shut-down of an existing groundwater Pump & Treat system.
Accessible source areas were subsequently removed (2011) by soil excavation and treated with the placement of Emulsified Vegetable Oil EVO and zero-valent iron ZVI to accelerate treatment of impacted groundwater in overburden and weathered fractured bedrock. Post pilot test and post remediation groundwater monitoring has included analyses of CVOCs, organic fatty acids, dissolved gases and QuantArray® -Chlor to quantify key microorganisms (e.g., Dehalococcoides, Dehalobacter, etc.) and functional genes (e.g., vinyl chloride reductase, methane monooxygenase, etc.) to assess potential for reductive dechlorination and aerobic cometabolism of CVOCs.
In 2022, the first commercial application of MetaArray™ was performed at the site. MetaArray™ utilizes statistical analysis, such as principal component analysis and multivariate analysis to provide evidence that reductive dechlorination is active or even that it is slowing. This creates actionable data allowing users to save money by making important site management decisions earlier.
The results of the MetaArray™ analysis’ support vector machine (SVM) identified groundwater monitoring wells with a 80% confidence that were characterized as either Limited for Reductive Decholorination or had a High Reductive Reduction Dechlorination potential. The results of MetaArray™ will be used to further optimize the site’s post remediation monitoring program for monitored natural attenuation.
Lessons from operationalizing integrated landscape approaches
Presented by James Reed at "9th Landscape Sustainability Science Forum" on 11 May 2024
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How change in temperature effect the growth of Plants.
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Formulation of aramang baked products enriched with malunggay
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Monitor indicators of genetic diversity from space using Earth Observation data
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Kinetic studies on malachite green dye adsorption from aqueous solutions by A...
Kinetic studies on malachite green dye adsorption from aqueous solutions by A...
BASIC CONCEPT OF ENVIRONMENT AND DIFFERENT CONSTITUTENET OF ENVIRONMENT
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Download the Latest OSHA 10 Answers PDF : oyetrade.com
Download the Latest OSHA 10 Answers PDF : oyetrade.com
REPORT-PRESENTATION BY CHIEF SECRETARY, ANDAMAN NICOBAR ADMINISTRATION IN OA ...
REPORT-PRESENTATION BY CHIEF SECRETARY, ANDAMAN NICOBAR ADMINISTRATION IN OA ...
Biomimicry in agriculture: Nature-Inspired Solutions for a Greener Future
Biomimicry in agriculture: Nature-Inspired Solutions for a Greener Future
Optimizing Post Remediation Groundwater Performance with Enhanced Microbiolog...
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Lessons from operationalizing integrated landscape approaches
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Approach to vehicle emission modelling
- 1. Approach to Vehicle Emission Modelling Rajesh B. Biniwale Scientist Air Pollution Control Division, NEERI, Nagpur-440 020 Introduction Vehicle emission estimation is essential for calculating vehicle pollution load and its impact on ambient air quality. The emission inventory technique is used for estimation of pollutant loads. The dispersion modeling gives the resulting ambient air quality. Source apportionment studies are carried out using receptor modeling. This paper discusses all three approaches in brief. Common models used for this purpose are also mentioned Emission Inventory Models The objective of emission inventory preparation should be very clearly spelt out to facilitate selection of the appropriate model. The major objective of emission inventory preparation, in general is estimation of emission loads under various scenarios with technological or policy interventions planned. Several models are available for preparation of emission inventories. Some of the models are however, CORINAIR, IPIECA tool kit, and few more are specific for the prediction of pollution load. CORINAIR takes into account emissions from point, line and area sources and gives percentage-wise or mass emission load per year from 11 different categories of sources. The IPIECA toolkit is a PC-based emission inventory model. The Toolkit allows users to develop comprehensive emission inventories and assess the effect of a range of future energy, transport, commercial and industrial scenarios 238
- 2. on emission. The model is highly flexible and can be adapted to characterize emissions within a city, region or country and at various temporal scales up to one hundred years. The Toolkit, using built-in options and equations, can also be used where only incomplete sets of local data are available. The model provides a sound balance between complexity, accuracy and user friendliness. Two approaches can be employed to evaluate source contribution from source emissions data and ambient monitoring data : source-oriented models and receptor-oriented models. Source-oriented models use emissions data and fluid mechanically explicit transport calculations to predict pollutant concentrations at specific receptor air monitoring locations. This type of model is validated by comparison of the predicted spatial and temporal distribution of pollutant concentrations against measured concentrations. Receptor oriented models infer source contributions by determining the best fit linear combination of emission source chemical composition profiles needed to reconstruct the measured chemical composition of ambient air. Dispersion Modelling - Source Oriented Models Dispersion models may be used to predict the concentration of pollutants at various locations due to dispersion under prevailing meteorological conditions. The dispersion models could be source-type specific e.g. for line source, models which may be used are Caline, Mobile 5 etc. For point sources ISCST3 may be used. The dispersion models suggested do not account for the regional scenario. Mesoscale meteorological models such as MM5 in combination with models such as Calpuff facilitate detailed regional air quality modeling. Using emission inventory and dispersion modeling estimates of emission loads and concentration of various pollutants in ambient air may be predicted. However, the above approach needs to be integrated using receptor modelling. o o r
- 3. Chemical Mass Balance (CMB) - Receptor Model The CMB model uses the chemical composition of ambient pollution samples to estimate the concentration of different source types to the measured pollutant concentrations. The model quantifies contributions from chemically distinct source types rather than contributions from individual emitters. Sources, which have similar chemical composition, can not be separated by the model. The particle characteristics must be such that; i. they are present in different proportion in different source emissions, ii. these proportions remain relatively constant for each source type, iii. change in these proportions between sources and receptor are negligible, iv. chemical species do no react with each other, i.e., they add linearly, and v. the number of sources is less than or equal to the number of chemical species The contribution of automotive exhaust to ambient air quality depends on engine type, traffic movement and fuel quality. A detailed study is, therefore, needed to develop vehicle emission norms keeping in view all these aspects. 240