IOSR Journal of Mathematics(IOSR-JM) is a double blind peer reviewed International Journal that provides rapid publication (within a month) of articles in all areas of mathemetics and its applications. The journal welcomes publications of high quality papers on theoretical developments and practical applications in mathematics. Original research papers, state-of-the-art reviews, and high quality technical notes are invited for publications.
MS Report, When we talked about the conic section it involves a double-napped cone and a plane. If a plane intersects a double right circular cone, we get two-dimensional curves of different types. These curves are what we called the conic section.
Distinguish equations representing the circles and the conics; use the properties of a particular geometry to sketch the graph in using the rectangular or the polar coordinate system. Furthermore, to be able to write the equation and to solve application problems involving a particular geometry.
Pénectomie partielle pour un carcinome de la verge: A propos de 24 casiosrjce
IOSR Journal of Dental and Medical Sciences is one of the speciality Journal in Dental Science and Medical Science published by International Organization of Scientific Research (IOSR). The Journal publishes papers of the highest scientific merit and widest possible scope work in all areas related to medical and dental science. The Journal welcome review articles, leading medical and clinical research articles, technical notes, case reports and others.
A Study on the Presence of Islets Cell Autoantibodies in NonInsulin Requiring...iosrjce
IOSR Journal of Dental and Medical Sciences is one of the speciality Journal in Dental Science and Medical Science published by International Organization of Scientific Research (IOSR). The Journal publishes papers of the highest scientific merit and widest possible scope work in all areas related to medical and dental science. The Journal welcome review articles, leading medical and clinical research articles, technical notes, case reports and others.
MS Report, When we talked about the conic section it involves a double-napped cone and a plane. If a plane intersects a double right circular cone, we get two-dimensional curves of different types. These curves are what we called the conic section.
Distinguish equations representing the circles and the conics; use the properties of a particular geometry to sketch the graph in using the rectangular or the polar coordinate system. Furthermore, to be able to write the equation and to solve application problems involving a particular geometry.
Pénectomie partielle pour un carcinome de la verge: A propos de 24 casiosrjce
IOSR Journal of Dental and Medical Sciences is one of the speciality Journal in Dental Science and Medical Science published by International Organization of Scientific Research (IOSR). The Journal publishes papers of the highest scientific merit and widest possible scope work in all areas related to medical and dental science. The Journal welcome review articles, leading medical and clinical research articles, technical notes, case reports and others.
A Study on the Presence of Islets Cell Autoantibodies in NonInsulin Requiring...iosrjce
IOSR Journal of Dental and Medical Sciences is one of the speciality Journal in Dental Science and Medical Science published by International Organization of Scientific Research (IOSR). The Journal publishes papers of the highest scientific merit and widest possible scope work in all areas related to medical and dental science. The Journal welcome review articles, leading medical and clinical research articles, technical notes, case reports and others.
Analysis of Time Complexities and Accuracy of Depression Filling Algorithms i...iosrjce
IOSR Journal of Computer Engineering (IOSR-JCE) is a double blind peer reviewed International Journal that provides rapid publication (within a month) of articles in all areas of computer engineering and its applications. The journal welcomes publications of high quality papers on theoretical developments and practical applications in computer technology. Original research papers, state-of-the-art reviews, and high quality technical notes are invited for publications.
Application of Delegating Model in Mentoring for Teachersiosrjce
IOSR Journal of Research & Method in Education (IOSRJRME) is an open access journal that publishes articles which contribute new results in all areas of research & method in education. The goal of this journal is to bring together researchers and practitioners from academia and industry to focus on advanced research & method in education concepts and establishing new collaborations in these areas.
A Study of Healthcare Quality Measures across Countries to Define an Approach...iosrjce
IOSR Journal of Dental and Medical Sciences is one of the speciality Journal in Dental Science and Medical Science published by International Organization of Scientific Research (IOSR). The Journal publishes papers of the highest scientific merit and widest possible scope work in all areas related to medical and dental science. The Journal welcome review articles, leading medical and clinical research articles, technical notes, case reports and others.
Rheological and optical characterization of Polyvinylpyrrolidone (PVP) - Poly...iosrjce
IOSR Journal of Applied Physics (IOSR-JAP) is a double blind peer reviewed International Journal that provides rapid publication (within a month) of articles in all areas of physics and its applications. The journal welcomes publications of high quality papers on theoretical developments and practical applications in applied physics. Original research papers, state-of-the-art reviews, and high quality technical notes are invited for publications.
Media Innovations and its Impact on Brand awareness & Considerationiosrjce
IOSR Journal of Business and Management (IOSR-JBM) is a double blind peer reviewed International Journal that provides rapid publication (within a month) of articles in all areas of business and managemant and its applications. The journal welcomes publications of high quality papers on theoretical developments and practical applications inbusiness and management. Original research papers, state-of-the-art reviews, and high quality technical notes are invited for publications.
Do We Need To Promote Breast Self -Examination In Rural Communities?iosrjce
IOSR Journal of Nursing and health Science is ambitious to disseminate information and experience in education, practice and investigation between medicine, nursing and all the sciences involved in health care.
Nursing & Health Sciences focuses on the international exchange of knowledge in nursing and health sciences. The journal publishes peer-reviewed papers on original research, education and clinical practice.
By encouraging scholars from around the world to share their knowledge and expertise, the journal aims to provide the reader with a deeper understanding of the lived experience of nursing and health sciences and the opportunity to enrich their own area of practice
Testing Donor For Anti HbcIgM to Enhance Blood Safetyiosrjce
IOSR Journal of Dental and Medical Sciences is one of the speciality Journal in Dental Science and Medical Science published by International Organization of Scientific Research (IOSR). The Journal publishes papers of the highest scientific merit and widest possible scope work in all areas related to medical and dental science. The Journal welcome review articles, leading medical and clinical research articles, technical notes, case reports and others.
A Study on Learning Factor Analysis – An Educational Data Mining Technique fo...iosrjce
IOSR Journal of Computer Engineering (IOSR-JCE) is a double blind peer reviewed International Journal that provides rapid publication (within a month) of articles in all areas of computer engineering and its applications. The journal welcomes publications of high quality papers on theoretical developments and practical applications in computer technology. Original research papers, state-of-the-art reviews, and high quality technical notes are invited for publications.
A Survey on Authorization Systems for Web Applicationsiosrjce
IOSR Journal of Computer Engineering (IOSR-JCE) is a double blind peer reviewed International Journal that provides rapid publication (within a month) of articles in all areas of computer engineering and its applications. The journal welcomes publications of high quality papers on theoretical developments and practical applications in computer technology. Original research papers, state-of-the-art reviews, and high quality technical notes are invited for publications.
Concept Drift for obtaining Accurate Insight on Process Executioniosrjce
IOSR Journal of Computer Engineering (IOSR-JCE) is a double blind peer reviewed International Journal that provides rapid publication (within a month) of articles in all areas of computer engineering and its applications. The journal welcomes publications of high quality papers on theoretical developments and practical applications in computer technology. Original research papers, state-of-the-art reviews, and high quality technical notes are invited for publications.
Spectrophotometric Estimation of Drugs Using Potassium Permanganate and Saffr...iosrjce
IOSR Journal of Applied Chemistry (IOSR-JAC) is a double blind peer reviewed International Journal that provides rapid publication (within a month) of articles in all areas of applied chemistry and its applications. The journal welcomes publications of high quality papers on theoretical developments and practical applications in Chemical Science. Original research papers, state-of-the-art reviews, and high quality technical notes are invited for publications.
Application of GC-MS in Quantitative Analysis of Some Carminative Syrupsiosrjce
IOSR Journal of Pharmacy and Biological Sciences(IOSR-JPBS) is a double blind peer reviewed International Journal that provides rapid publication (within a month) of articles in all areas of Pharmacy and Biological Science. The journal welcomes publications of high quality papers on theoretical developments and practical applications in Pharmacy and Biological Science. Original research papers, state-of-the-art reviews, and high quality technical notes are invited for publications.
Analytical Method Development and Validation of Prednisolone Sodium Phosphate...iosrjce
IOSR Journal of Pharmacy and Biological Sciences(IOSR-JPBS) is a double blind peer reviewed International Journal that provides rapid publication (within a month) of articles in all areas of Pharmacy and Biological Science. The journal welcomes publications of high quality papers on theoretical developments and practical applications in Pharmacy and Biological Science. Original research papers, state-of-the-art reviews, and high quality technical notes are invited for publications.
Synthesis and Utility of Starch Based Polymers- A Short Reviewiosrjce
IOSR Journal of Applied Chemistry (IOSR-JAC) is a double blind peer reviewed International Journal that provides rapid publication (within a month) of articles in all areas of applied chemistry and its applications. The journal welcomes publications of high quality papers on theoretical developments and practical applications in Chemical Science. Original research papers, state-of-the-art reviews, and high quality technical notes are invited for publications.
Periodontally Accelerated Osteogenic Orthodontics: A Surgical Technique and C...iosrjce
IOSR Journal of Dental and Medical Sciences is one of the speciality Journal in Dental Science and Medical Science published by International Organization of Scientific Research (IOSR). The Journal publishes papers of the highest scientific merit and widest possible scope work in all areas related to medical and dental science. The Journal welcome review articles, leading medical and clinical research articles, technical notes, case reports and others.
What are the perceived coaching practices that have contributed to participat...iosrjce
The main objective of IOSR-JSPE is to reunite specialists from different fields, such as sport, physical activity, Kinesiology, education, health and nutrition, in order to provide the opportunity of multidisciplinary debates and comprehensive understanding of how physical activity influences human life. Researchers from areas related to sport and health will be invited to publish their newest gathered information and its practical applicability. The target group involves specialists from different fields, such as: academic researchers, kinesitherapists, Physical Education and sport teachers, physicians in sports medicine, psychologists, nutritionists, coaches or any other specialists related to the sport domain.
IOSR Journal of Computer Engineering (IOSR-JCE) is a double blind peer reviewed International Journal that provides rapid publication (within a month) of articles in all areas of computer engineering and its applications. The journal welcomes publications of high quality papers on theoretical developments and practical applications in computer technology. Original research papers, state-of-the-art reviews, and high quality technical notes are invited for publications.
Complex Number,
Mathematical Requirement,
Geometrical Requirement,
Conventions,
Representation,
Modulus And Argument,
Real Vs Complex Numbers ,
Purely Real Complex Number ,
Purely Imaginary Complex Number ,
Equality Between Two Complex Numbers ,
Operation on Complex Number ,
Polar Form of Complex Number ,
About Other Than Origin ,
Properties of Complex Number ,
Logarithm of Complex Number ,
Parametric Conversion,
De Moivre’s Theorem ,
Properties of the Arguments ,
Roots of a Complex Number ,
Analytical Complex Numbers ,
Limit & Continuity,
Poles & Zeros,
Complex Derivative ,
Complex Integration ,
Area relation of two right angled triangle in trigonometric formresearchinventy
In this research paper ,explained trigomomatric area relation of two right angled triangle when sidemeasurement of both right angled triangle are equal. And that explanation given between base ,height ,hypogenous and area of right angled triangles with the help of formula.here be remember that, sidemeasurement of both right angled triangle are same.
Mathematical analysis of n-gonal trapezohedron with 2n congruent right kite f...Harish Chandra Rajpoot
The generalized formula are applicable on any n-gonal trapezohedronhaving 2n congruent right kite faces, 4n edges & 2n+2 vertices lying on a spherical surface with a certain radius. These formula have been derived by the author Mr H.C. Rajpoot to analyse infinite no. of the trapezohedrons having congruent right kite faces simply by setting n=3,4,5,6,7,………………upto infinity, to calculate all the important parameters such as ratio of unequal edges, outer radius, inner radius, mean radius, surface area, volume, solid angles subtended by the polyhedron at its vertices, dihedral angles between the adjacent right kite faces etc. These formula are very useful for the analysis, modeling & designing of various n-gonal trapezoherons/deltohedrons.
Mathematical Analysis of Regular Spherical Polygons (Application of HCR's The...Harish Chandra Rajpoot
All the parameters of a regular spherical polygon such as solid angle subtended at the center, area, length of side, interior angle etc. have been derived by Mr H.C. Rajpoot by using simple geometry & trigonometry. All the formula are very practical & simple to apply in case of any regular spherical polygon to calculate all its important parameters such as solid angle, surface area covered & length of each side etc. & also all the parameters of the corresponding regular plane polygon obtained by joining all the vertices of the regular spherical polygon by straight lines. These formula can also be used to calculate all the parameters of the right pyramid obtained by joining all the vertices of a regular spherical polygon to the center of sphere such as normal height, angle between the consecutive lateral edges, area of regular polygonal base etc. All these results are also the shortcuts for solving the various complex problems related to the regular spherical polygons.
In a polytope P the faces F (from vertex to facets) define the combinatorics of P. In particular a flag F0, F1, ...., F(n-1) with Fi being a face of dimension i and Fi a subset of F(i+1).
From such a flag system and a subset S of {1,....,n} we can define a new flag system named the Wythoff construction. We consider the l1-embedding of the obtained graphs. We also expose an application of the Wythoff construction to the computation of homology of the Mathieu group M24.
The branch of mathematics which deals with location of objects in 2-D (dimensional) plane is called coordinate geometry. Need to present your work in most impressive & informative manner i.e. through Power Point Presentation call us at skype Id: kumar_sukh79 or mail us: clintech2011@gmail.com for using my service.
An Examination of Effectuation Dimension as Financing Practice of Small and M...iosrjce
IOSR Journal of Business and Management (IOSR-JBM) is a double blind peer reviewed International Journal that provides rapid publication (within a month) of articles in all areas of business and managemant and its applications. The journal welcomes publications of high quality papers on theoretical developments and practical applications inbusiness and management. Original research papers, state-of-the-art reviews, and high quality technical notes are invited for publications.
Does Goods and Services Tax (GST) Leads to Indian Economic Development?iosrjce
IOSR Journal of Business and Management (IOSR-JBM) is a double blind peer reviewed International Journal that provides rapid publication (within a month) of articles in all areas of business and managemant and its applications. The journal welcomes publications of high quality papers on theoretical developments and practical applications inbusiness and management. Original research papers, state-of-the-art reviews, and high quality technical notes are invited for publications.
Childhood Factors that influence success in later lifeiosrjce
IOSR Journal of Business and Management (IOSR-JBM) is a double blind peer reviewed International Journal that provides rapid publication (within a month) of articles in all areas of business and managemant and its applications. The journal welcomes publications of high quality papers on theoretical developments and practical applications inbusiness and management. Original research papers, state-of-the-art reviews, and high quality technical notes are invited for publications.
Emotional Intelligence and Work Performance Relationship: A Study on Sales Pe...iosrjce
IOSR Journal of Business and Management (IOSR-JBM) is a double blind peer reviewed International Journal that provides rapid publication (within a month) of articles in all areas of business and managemant and its applications. The journal welcomes publications of high quality papers on theoretical developments and practical applications inbusiness and management. Original research papers, state-of-the-art reviews, and high quality technical notes are invited for publications.
Customer’s Acceptance of Internet Banking in Dubaiiosrjce
IOSR Journal of Business and Management (IOSR-JBM) is a double blind peer reviewed International Journal that provides rapid publication (within a month) of articles in all areas of business and managemant and its applications. The journal welcomes publications of high quality papers on theoretical developments and practical applications inbusiness and management. Original research papers, state-of-the-art reviews, and high quality technical notes are invited for publications.
A Study of Employee Satisfaction relating to Job Security & Working Hours amo...iosrjce
IOSR Journal of Business and Management (IOSR-JBM) is a double blind peer reviewed International Journal that provides rapid publication (within a month) of articles in all areas of business and managemant and its applications. The journal welcomes publications of high quality papers on theoretical developments and practical applications inbusiness and management. Original research papers, state-of-the-art reviews, and high quality technical notes are invited for publications.
Consumer Perspectives on Brand Preference: A Choice Based Model Approachiosrjce
IOSR Journal of Business and Management (IOSR-JBM) is a double blind peer reviewed International Journal that provides rapid publication (within a month) of articles in all areas of business and managemant and its applications. The journal welcomes publications of high quality papers on theoretical developments and practical applications inbusiness and management. Original research papers, state-of-the-art reviews, and high quality technical notes are invited for publications.
Student`S Approach towards Social Network Sitesiosrjce
IOSR Journal of Business and Management (IOSR-JBM) is a double blind peer reviewed International Journal that provides rapid publication (within a month) of articles in all areas of business and managemant and its applications. The journal welcomes publications of high quality papers on theoretical developments and practical applications inbusiness and management. Original research papers, state-of-the-art reviews, and high quality technical notes are invited for publications.
Broadcast Management in Nigeria: The systems approach as an imperativeiosrjce
IOSR Journal of Business and Management (IOSR-JBM) is a double blind peer reviewed International Journal that provides rapid publication (within a month) of articles in all areas of business and managemant and its applications. The journal welcomes publications of high quality papers on theoretical developments and practical applications inbusiness and management. Original research papers, state-of-the-art reviews, and high quality technical notes are invited for publications.
A Study on Retailer’s Perception on Soya Products with Special Reference to T...iosrjce
IOSR Journal of Business and Management (IOSR-JBM) is a double blind peer reviewed International Journal that provides rapid publication (within a month) of articles in all areas of business and managemant and its applications. The journal welcomes publications of high quality papers on theoretical developments and practical applications inbusiness and management. Original research papers, state-of-the-art reviews, and high quality technical notes are invited for publications.
A Study Factors Influence on Organisation Citizenship Behaviour in Corporate ...iosrjce
IOSR Journal of Business and Management (IOSR-JBM) is a double blind peer reviewed International Journal that provides rapid publication (within a month) of articles in all areas of business and managemant and its applications. The journal welcomes publications of high quality papers on theoretical developments and practical applications inbusiness and management. Original research papers, state-of-the-art reviews, and high quality technical notes are invited for publications.
Consumers’ Behaviour on Sony Xperia: A Case Study on Bangladeshiosrjce
IOSR Journal of Business and Management (IOSR-JBM) is a double blind peer reviewed International Journal that provides rapid publication (within a month) of articles in all areas of business and managemant and its applications. The journal welcomes publications of high quality papers on theoretical developments and practical applications inbusiness and management. Original research papers, state-of-the-art reviews, and high quality technical notes are invited for publications.
Design of a Balanced Scorecard on Nonprofit Organizations (Study on Yayasan P...iosrjce
IOSR Journal of Business and Management (IOSR-JBM) is a double blind peer reviewed International Journal that provides rapid publication (within a month) of articles in all areas of business and managemant and its applications. The journal welcomes publications of high quality papers on theoretical developments and practical applications inbusiness and management. Original research papers, state-of-the-art reviews, and high quality technical notes are invited for publications.
Public Sector Reforms and Outsourcing Services in Nigeria: An Empirical Evalu...iosrjce
IOSR Journal of Business and Management (IOSR-JBM) is a double blind peer reviewed International Journal that provides rapid publication (within a month) of articles in all areas of business and managemant and its applications. The journal welcomes publications of high quality papers on theoretical developments and practical applications inbusiness and management. Original research papers, state-of-the-art reviews, and high quality technical notes are invited for publications.
Customer experience in supermarkets and hypermarkets – A comparative studyiosrjce
IOSR Journal of Business and Management (IOSR-JBM) is a double blind peer reviewed International Journal that provides rapid publication (within a month) of articles in all areas of business and managemant and its applications. The journal welcomes publications of high quality papers on theoretical developments and practical applications inbusiness and management. Original research papers, state-of-the-art reviews, and high quality technical notes are invited for publications.
Social Media and Small Businesses: A Combinational Strategic Approach under t...iosrjce
IOSR Journal of Business and Management (IOSR-JBM) is a double blind peer reviewed International Journal that provides rapid publication (within a month) of articles in all areas of business and managemant and its applications. The journal welcomes publications of high quality papers on theoretical developments and practical applications inbusiness and management. Original research papers, state-of-the-art reviews, and high quality technical notes are invited for publications.
Secretarial Performance and the Gender Question (A Study of Selected Tertiary...iosrjce
IOSR Journal of Business and Management (IOSR-JBM) is a double blind peer reviewed International Journal that provides rapid publication (within a month) of articles in all areas of business and managemant and its applications. The journal welcomes publications of high quality papers on theoretical developments and practical applications inbusiness and management. Original research papers, state-of-the-art reviews, and high quality technical notes are invited for publications.
Implementation of Quality Management principles at Zimbabwe Open University (...iosrjce
IOSR Journal of Business and Management (IOSR-JBM) is a double blind peer reviewed International Journal that provides rapid publication (within a month) of articles in all areas of business and managemant and its applications. The journal welcomes publications of high quality papers on theoretical developments and practical applications inbusiness and management. Original research papers, state-of-the-art reviews, and high quality technical notes are invited for publications.
Organizational Conflicts Management In Selected Organizaions In Lagos State, ...iosrjce
IOSR Journal of Business and Management (IOSR-JBM) is a double blind peer reviewed International Journal that provides rapid publication (within a month) of articles in all areas of business and managemant and its applications. The journal welcomes publications of high quality papers on theoretical developments and practical applications inbusiness and management. Original research papers, state-of-the-art reviews, and high quality technical notes are invited for publications.
Impact of education on innovation performance: evidence from Azerbaijan const...iosrjce
IOSR Journal of Business and Management (IOSR-JBM) is a double blind peer reviewed International Journal that provides rapid publication (within a month) of articles in all areas of business and managemant and its applications. The journal welcomes publications of high quality papers on theoretical developments and practical applications inbusiness and management. Original research papers, state-of-the-art reviews, and high quality technical notes are invited for publications.
The use of Nauplii and metanauplii artemia in aquaculture (brine shrimp).pptxMAGOTI ERNEST
Although Artemia has been known to man for centuries, its use as a food for the culture of larval organisms apparently began only in the 1930s, when several investigators found that it made an excellent food for newly hatched fish larvae (Litvinenko et al., 2023). As aquaculture developed in the 1960s and ‘70s, the use of Artemia also became more widespread, due both to its convenience and to its nutritional value for larval organisms (Arenas-Pardo et al., 2024). The fact that Artemia dormant cysts can be stored for long periods in cans, and then used as an off-the-shelf food requiring only 24 h of incubation makes them the most convenient, least labor-intensive, live food available for aquaculture (Sorgeloos & Roubach, 2021). The nutritional value of Artemia, especially for marine organisms, is not constant, but varies both geographically and temporally. During the last decade, however, both the causes of Artemia nutritional variability and methods to improve poorquality Artemia have been identified (Loufi et al., 2024).
Brine shrimp (Artemia spp.) are used in marine aquaculture worldwide. Annually, more than 2,000 metric tons of dry cysts are used for cultivation of fish, crustacean, and shellfish larva. Brine shrimp are important to aquaculture because newly hatched brine shrimp nauplii (larvae) provide a food source for many fish fry (Mozanzadeh et al., 2021). Culture and harvesting of brine shrimp eggs represents another aspect of the aquaculture industry. Nauplii and metanauplii of Artemia, commonly known as brine shrimp, play a crucial role in aquaculture due to their nutritional value and suitability as live feed for many aquatic species, particularly in larval stages (Sorgeloos & Roubach, 2021).
Remote Sensing and Computational, Evolutionary, Supercomputing, and Intellige...University of Maribor
Slides from talk:
Aleš Zamuda: Remote Sensing and Computational, Evolutionary, Supercomputing, and Intelligent Systems.
11th International Conference on Electrical, Electronics and Computer Engineering (IcETRAN), Niš, 3-6 June 2024
Inter-Society Networking Panel GRSS/MTT-S/CIS Panel Session: Promoting Connection and Cooperation
https://www.etran.rs/2024/en/home-english/
The Evolution of Science Education PraxiLabs’ Vision- Presentation (2).pdfmediapraxi
The rise of virtual labs has been a key tool in universities and schools, enhancing active learning and student engagement.
💥 Let’s dive into the future of science and shed light on PraxiLabs’ crucial role in transforming this field!
DERIVATION OF MODIFIED BERNOULLI EQUATION WITH VISCOUS EFFECTS AND TERMINAL V...Wasswaderrick3
In this book, we use conservation of energy techniques on a fluid element to derive the Modified Bernoulli equation of flow with viscous or friction effects. We derive the general equation of flow/ velocity and then from this we derive the Pouiselle flow equation, the transition flow equation and the turbulent flow equation. In the situations where there are no viscous effects , the equation reduces to the Bernoulli equation. From experimental results, we are able to include other terms in the Bernoulli equation. We also look at cases where pressure gradients exist. We use the Modified Bernoulli equation to derive equations of flow rate for pipes of different cross sectional areas connected together. We also extend our techniques of energy conservation to a sphere falling in a viscous medium under the effect of gravity. We demonstrate Stokes equation of terminal velocity and turbulent flow equation. We look at a way of calculating the time taken for a body to fall in a viscous medium. We also look at the general equation of terminal velocity.
Professional air quality monitoring systems provide immediate, on-site data for analysis, compliance, and decision-making.
Monitor common gases, weather parameters, particulates.
BREEDING METHODS FOR DISEASE RESISTANCE.pptxRASHMI M G
Plant breeding for disease resistance is a strategy to reduce crop losses caused by disease. Plants have an innate immune system that allows them to recognize pathogens and provide resistance. However, breeding for long-lasting resistance often involves combining multiple resistance genes
What is greenhouse gasses and how many gasses are there to affect the Earth.moosaasad1975
What are greenhouse gasses how they affect the earth and its environment what is the future of the environment and earth how the weather and the climate effects.
The ability to recreate computational results with minimal effort and actionable metrics provides a solid foundation for scientific research and software development. When people can replicate an analysis at the touch of a button using open-source software, open data, and methods to assess and compare proposals, it significantly eases verification of results, engagement with a diverse range of contributors, and progress. However, we have yet to fully achieve this; there are still many sociotechnical frictions.
Inspired by David Donoho's vision, this talk aims to revisit the three crucial pillars of frictionless reproducibility (data sharing, code sharing, and competitive challenges) with the perspective of deep software variability.
Our observation is that multiple layers — hardware, operating systems, third-party libraries, software versions, input data, compile-time options, and parameters — are subject to variability that exacerbates frictions but is also essential for achieving robust, generalizable results and fostering innovation. I will first review the literature, providing evidence of how the complex variability interactions across these layers affect qualitative and quantitative software properties, thereby complicating the reproduction and replication of scientific studies in various fields.
I will then present some software engineering and AI techniques that can support the strategic exploration of variability spaces. These include the use of abstractions and models (e.g., feature models), sampling strategies (e.g., uniform, random), cost-effective measurements (e.g., incremental build of software configurations), and dimensionality reduction methods (e.g., transfer learning, feature selection, software debloating).
I will finally argue that deep variability is both the problem and solution of frictionless reproducibility, calling the software science community to develop new methods and tools to manage variability and foster reproducibility in software systems.
Exposé invité Journées Nationales du GDR GPL 2024
Phenomics assisted breeding in crop improvementIshaGoswami9
As the population is increasing and will reach about 9 billion upto 2050. Also due to climate change, it is difficult to meet the food requirement of such a large population. Facing the challenges presented by resource shortages, climate
change, and increasing global population, crop yield and quality need to be improved in a sustainable way over the coming decades. Genetic improvement by breeding is the best way to increase crop productivity. With the rapid progression of functional
genomics, an increasing number of crop genomes have been sequenced and dozens of genes influencing key agronomic traits have been identified. However, current genome sequence information has not been adequately exploited for understanding
the complex characteristics of multiple gene, owing to a lack of crop phenotypic data. Efficient, automatic, and accurate technologies and platforms that can capture phenotypic data that can
be linked to genomics information for crop improvement at all growth stages have become as important as genotyping. Thus,
high-throughput phenotyping has become the major bottleneck restricting crop breeding. Plant phenomics has been defined as the high-throughput, accurate acquisition and analysis of multi-dimensional phenotypes
during crop growing stages at the organism level, including the cell, tissue, organ, individual plant, plot, and field levels. With the rapid development of novel sensors, imaging technology,
and analysis methods, numerous infrastructure platforms have been developed for phenotyping.
hematic appreciation test is a psychological assessment tool used to measure an individual's appreciation and understanding of specific themes or topics. This test helps to evaluate an individual's ability to connect different ideas and concepts within a given theme, as well as their overall comprehension and interpretation skills. The results of the test can provide valuable insights into an individual's cognitive abilities, creativity, and critical thinking skills
Comparing Evolved Extractive Text Summary Scores of Bidirectional Encoder Rep...University of Maribor
Slides from:
11th International Conference on Electrical, Electronics and Computer Engineering (IcETRAN), Niš, 3-6 June 2024
Track: Artificial Intelligence
https://www.etran.rs/2024/en/home-english/
This presentation explores a brief idea about the structural and functional attributes of nucleotides, the structure and function of genetic materials along with the impact of UV rays and pH upon them.
Nucleic Acid-its structural and functional complexity.
On Polyhedrons
1. IOSR Journal of Mathematics (IOSR-JM)
e-ISSN: 2278-5728, p-ISSN: 2319-765X. Volume 11, Issue 6 Ver. V (Nov. - Dec. 2015), PP 01-05
www.iosrjournals.org
DOI: 10.9790/5728-11650105 www.iosrjournals.org 1 | Page
On Polyhedrons
KeertiVardhanMadahar
Associate Professor in Mathematics (DES)Panjab University, Chandigarh
Abstract. In this article we discuss some Geometric and Topological properties of the polyhedrons and
reformulate Polyhedral Gauss Bonnet Theorem.
I. Introduction
Polyhedrons have been studied extensively by mathematicians, both modern as well as ancient.These
are building blocks of compact 3-manifolds and help in explaining many difficult concepts of Topology.
Polyhedrons have had great attraction for mathematicians also because it is easy to play and experiment with
them and their nature renders them computer friendly.We will discuss belowsome of their interesting
topological and geometric properties.
Polyhedron. A convex polyhedron Pis a 3-dimensional solid with polygonal faces such that
(i) Intersection of any two of these polygonal facesis either a commonedge or a vertex or an empty set.
(ii) Each edge is shared by exactly two polygonal facesof P.
Some examples of the polyhedrons are given below.
{ Figure 1 }
Euler number.Let P be a polyhedron with V, E and F as its number of vertices, edges and faces
respectively. The alternating sum V – E + F is called Euler number of P and is usually denoted by (P).
In 1750 Euler proved the following theorem regarding (P) of the convexpolyhedrons.
Theorem 1.The Euler number (P) = V – E + F is same for allconvex polyhedronsirrespective of their
number of vertices, edges and faces. And the common value is 2.
Proof.Let P be a convex polyhedron such that its ith
polygonal face has 𝑛𝑖 edges (say 𝑒𝑖1, 𝑒𝑖2, …
𝑒𝑖𝑛 𝑖
where𝑛𝑖 3) and hence has 𝑛𝑖 angles (say 𝛼𝑖1, 𝛼𝑖2, … 𝛼𝑖𝑛 𝑖
), then from Euclid’s geometry we have
Sum of interior angles of the ith
polygonal face = 𝛼𝑖𝑗
𝑛 𝑖
𝑗 =1 = (𝑛𝑖 – 2)
If we take sum over i = 1, 2, 3, …, F (i.e. over all faces of the Polyhedron), the above equation gives
𝛼𝑖𝑗
𝑛 𝑖
𝑗 =1
𝐹
𝑖=1 = (𝑛𝑖– 2)π𝐹
𝑖=1
Sum of all polygonal angles in P = (𝑛𝑖π) – 2Fπ𝐹
𝑖=1
= 2E – 2F__________(*)
{∵ 𝑛𝑖 is the number of edges on the ith
face, so if we count edges on all faces of P then each edge will get
counted twice hence 𝑛𝑖
𝐹
𝑖=1 = 2E }.
Now we shall find sum of all polygonal angles of P in a little different way as is explained below.
Remove one face of the polyhedron and embed rest of it in the plane to get a planar graph with straight
edges, polygonal regions and two kinds of vertices viz. interior vertices 𝑖 𝑣 and boundary vertices 𝑏 𝑣.
Notice that each interior vertex 𝑖 𝑣 is surrounded by polygons and the angle sum around each such
vertex is 2. At each boundary vertex 𝑏 𝑣 the angle of the polygonal face (or some of the angles of the polygonal
faces at vertex 𝑏 𝑣) is ( – v), where v denotes the exterior angle of the polygon at vertex 𝑏 𝑣 (see Figure 2).
If we take sum of all angles of all the polygonal regions corresponding to all faces of the polyhedron
then for each 𝑏 𝑣 P the expression ( – v) appears twice in the sum because each boundary vertex 𝑏 𝑣 occurs
one time in the removed polygonal face of the polyhedron and one time in the embedded polyhedron in the
plane. So we have the following equation.
2. On Polyhedrons
DOI: 10.9790/5728-11650105 www.iosrjournals.org 2 | Page
{ Figure 2 }
Sum of all angles = 2 × 𝑖 𝑣 + 2(– 𝑣)𝑣
= 2 × 𝑖 𝑣 + 2( × 𝑏 𝑣– 𝑣𝑣 )
= 2 (𝑖 𝑣+ 𝑏 𝑣) – 2 ×sum of exterior angles of a polygon
= 2 V – 4 __________(**)
Combining (*) and (**) we get V – E + F = 2
Remarks.
1. One may ask, how can we equate (*) and (**) ?Since in equation (*) we have taken sum of the angles of
the polygonal faces of the original polyhedron whereas in equation (**) we have taken sum of the angles
of the embedded polyhedron in the plane. These two kinds of angles are different and hence these sums
may be quite different but surprisingly these are the same. This follows from equations (*) and (**) that
the sum depends only on the number of vertices, edges and faces in P and not on their measurements.
2. In 1813 A.J. Lhuilier (1750 -1840), who used to spent most of his time on problems relating to Euler's
formula, noticed that the Euler's formula was wrong for polyhedrons having holes and he gave a correct
formula for a polyhedron with g holes, which is: V – E + F = 2 – 2g.
II. Solid Angles in Polyhedrons
In a polyhedron there are four kinds of angles viz. (i) interior solid angles (ii) exterior solid angles (iii)
dihedral angles and (iv) polygonalface angles. We shall discuss relation among all these angles.
(i)Interior solid angle in a polyhedron: We discuss an interior solid angle, at a vertex v,in case of
tetrahedron onlyand same definition is applicable to any otherconvex polyhedron P.
Consider a spherewith radius r whose center coincides with avertex v of P.Part of this sphere, which is
enclosedbya cone consisting oftriangular faces vBA, vBC and vCAof P (see figure 3 below) is a spherical
triangle ABC.
{ Figure 3}
Angle subtended by this triangle at the center v, of the sphere, is defined as interior solid angle and is
measured as follows.
Interior solid angle at v =
𝐴𝑟𝑒𝑎𝑜𝑓𝑡𝑟𝑖𝑎𝑛𝑔𝑙𝑒𝐴𝐵𝐶
𝑟2
But area of spherical triangle ABCis (A + B + C – )r2
.So we have
A
v
B
C
𝜃𝑣
𝑖 𝑣
𝑏 𝑣2
𝑏 𝑣1
Removed face
Projection in plane
𝜃𝑣
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DOI: 10.9790/5728-11650105 www.iosrjournals.org 3 | Page
v
A
B
C
X
Z
Y
Interior solid angle at v =
A + B + C –π 𝑟2
𝑟2
= A + B + C – steradians
This definition is exactly same as the definition of a plane angle subtended by an arcl of a circle of
radius r at its center, which is given by = l/r.
(ii) Exterior solid angle in a polyhedron: In any polyhedron P (say tetrahedron vABC for the sake of
simplicity, shown in figure 4) exterior solid angle, at a vertex v, is defined as the interior solid angle
enclosed in the cone generated by the normals to the faces of P meeting at v.
{ Figure 4}
(iii) Dihedral angles. Suppose two faces X1 and X2of P intersects in an edge e, then angle between these
two plane faces is known as a dihedral angle and is equal to the angle between two lines, whichare
normal to eand arecontained in the planesX1 and X2respectively.
(iv) Polygonal face angles. These are plane angles, of the faces of P, formed at itsvarious vertices.
Remarks.
1.Solid angle subtended by a unit sphere at its center is 4.
2.In figure3;A, B and C are the angles between the tangents -- to the pairs of arcs (AB, AC), (BA,
BC) and (CA, CB) -- drawn at A, B and C respectively. Since these tangents are normal to the
respective radii so A of the spherical triangle ABC is same as the angle between two facesAvC and
AvB of the polyhedron and hence is a dihedral angleat the edge Av. Similarly B andC aredihedral
anglesat the edges Bv and Cv respectively. This implies the following result for tetrahedrons.
Interior solid angle at v is equal to sum of the dihedral angles at theedges emerging from v minus .
And in an arbitrary convex polyhedron if ev edges are emerging at a vertex v then we have the
following result.
i = (𝐝𝐢𝐡𝐞𝐝𝐫𝐚𝐥𝐚𝐧𝐠𝐥𝐞𝐚𝐭𝐚𝐧𝐞𝐝𝐠𝐞𝒆 𝒗 𝐞𝐦𝐞𝐫𝐠𝐢𝐧𝐠𝐟𝐫𝐨𝐦𝒗) − (𝒆 𝒗 − 𝟐)𝒆 𝒗
.
3. Angle between two planes is same as the angle between their normals if they are drawn in the same
direction and minus the angle between their normals if they are drawn in opposite direction (see figure 5
below).
Normals in the same direction Normals in the opposite direction
{ Figure 5 }
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DOI: 10.9790/5728-11650105 www.iosrjournals.org 4 | Page
Theorem 2.Prove thatexterior angle of aPolyhedron at any vertexis equal to2 minus sum of the
polygonal angles at v.
Proof.Consider the Figure 4 wherein vX,vYandvZ are normals to the triangles ABv,BCv and CAv
respectively. Notice that the total solid angle around v (i.e. 4) has been sub-divided into various other solid
angles, which we shall explain now.
A solid angleenclosed by the triangles XvA, XvB and AvB is equal to (since it is equal to sum of
dihedral angles minus which is
2
+
2
+ – also see remark 4 at the end). Similarly a solid angle enclosed by
YvB, YvC and BvC is equal to and a solid angle enclosed by ZvC, ZvA and CvA is equal to .
Since vX and vY are normal to the triangles vAB andvBC drawn in opposite direction, so
XvY = – dihedral angle at the edge vB
= –(if denotes dihedral angle at the edge vB).
If i and e respectively denote solid interior and exterior angles of P at the vertex v then the angle
subtended at v by the unit sphere centered at v is given by
4 =i + e + + + + (–) + (–) + (–)
We have already proved that i = sum of dihedral angles at v minus i.e. + + –.
Using this and the last equation we get the following result.
e = 2 – ( + + ) ----------------------- (***)
Remarks.
1. Right Hand Side of the last equation (i.e. (***) equation)is known as angle defect at the vertex v.
2. From equation (***) we get the following result
Sum of all exterior solid angles = (e)
= (2 – ( + + ))
= 2 V – sum of all polygonal angles
= 2 V – 2E + 2F (using eq. (*))
= 2 (V – E + F)
= 2 (P)
Sum of all exterior solid angles
2
= (P)
Notice that left hand side of the above equation (known as a Gauss number) is a geometric object while
right hand side (known as the Euler number) is a combinatorial object, so this equation gives a connection
among Geometry, Topologyand Combinatorics.
3. In the light of Theorem 2 and the previous remark, we can restate the classical Gauss Bonet Theorem for
polyhedrons as follows.
“Sum of all exterior solid angles of a convexpolyhedron P = 2 × (P).”
4. In the following figure a sphere of unit radius, circumscribed by a cylinder of unit base radius and height
2units, has been shown. Let the angle XOY be then curved area AXY is calculated as follows.
{ Figure 6 }
According to Archimedes Sphere-Cylinder Theorem area of the crescent AXPYA is same as the
rectangular area BXQRYC on the cylinder. But area of the rectangle is length × breadth = 2 × . So the area of
the half crescent i.e. Area (AXY) = .
A
O
X
Y
P
Q
R
C
B
5. On Polyhedrons
DOI: 10.9790/5728-11650105 www.iosrjournals.org 5 | Page
References
[1] Stephen Barr; Experiments in topology, Thomas Y. Crowell Company, New York (1964).
[2] Boltyanskii V. G., Efremovich V. A.; Intuitive Combinatorial Topology, translated from Russian addition, Springer Verlag, New
York(1982).
[3] Karl Wirth, André S. Dreiding; Relations between edge lengths, dihedral and solid angles in tetrahedral,Math Chem (2014) 52,
page1624–1638.
[4] Pressley, A.N.;Elementary Differential Geometry, Springer Undergraduate Mathematics Series(2010).