Engineering Educator: Courses最新文献

Smart Energy Access and Women Empowerment: A Case Study of Chitandika Village in Zambia 智慧能源获取与妇女赋权:赞比亚Chitandika村案例研究

Engineering Educator: Courses Pub Date : 2021-10-20 DOI: 10.2139/ssrn.3946264

Mantubwe Wampata, B. Mwanza

{"title":"Smart Energy Access and Women Empowerment: A Case Study of Chitandika Village in Zambia","authors":"Mantubwe Wampata, B. Mwanza","doi":"10.2139/ssrn.3946264","DOIUrl":"https://doi.org/10.2139/ssrn.3946264","url":null,"abstract":"Smart energy access provides numerous advantages in rural areas such as economic development and improved livelihood. Despite the efforts by energy companies to supply to rural areas, women still face a range of constraints in their ability to participate in energy activities. Therefore, this study sought to analyze the goals of access to smart energy on women empowerment from the energy company perspective, assess the extent to which access to smart energy has contributed to empowerment and to establish the challenges faced by women in accessing smart energy with the intent of outlining strategies for future implementation. The study used a qualitative thematic analysis approach. The data was collected through structured, open-ended interviews with 20 women respondents with access to energy in chitandika village and 1 in-depth interview with the key energy expert. The study found that access to smart energy in chitandika village had a positive effect on women empowerment as it provided several benefits for the women. Additionally, the study established general and specific challenges that women face in accessing smart energy. Furthermore, it was established that the key strategies for implementing smart energy access on women empowerment were gender mainstream in energy projects, understanding women’s energy needs and demands, promoting productive use, supporting credit, and saving schemes and promoting skill development.","PeriodicalId":443021,"journal":{"name":"Engineering Educator: Courses","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121783751","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Modelling of Electric Arcs for Industrial Applications, a Review 工业应用电弧建模研究进展

Engineering Educator: Courses Pub Date : 2021-09-12 DOI: 10.2139/ssrn.3927158

H. Haraldsson, Y. A. Tesfahunegn, M. Tangstad, G. Sævarsdóttir

{"title":"Modelling of Electric Arcs for Industrial Applications, a Review","authors":"H. Haraldsson, Y. A. Tesfahunegn, M. Tangstad, G. Sævarsdóttir","doi":"10.2139/ssrn.3927158","DOIUrl":"https://doi.org/10.2139/ssrn.3927158","url":null,"abstract":"Electric arcs are a necessary heat source in many industrial processes that take place in Submerged Arc Furnaces (SAFs). Arcs exhibit non-linear electrical characteristics and behave in a complex manner. Therefore, an improved understanding of their behaviour enables better control of furnace operation. Modelling of industrial arcs is a multiphysics process that involves simultaneously solving several coupled physical phenomena, such as electromagnetics, fluid dynamics and heat transfer, including a radiative heat transfer from the plasma arc. Coupling fluid dynamics and electromagnetics is known as Magnetohydrodynamics (MHD). There are also simpler approaches to arc modelling, either based on simplified physical principles or empirical behaviour. A number of MHD models for electric arcs have been presented in the literature, but most of them involve simplifications such as axial-symmetry to reduce the simulation time, pertain to currents much lower than for industrial arcs, focus on DC arcs rather than arcs carrying AC current or do not have the plasma properties of the actual gas in the furnace. In a recently started project, the ambition is to create a full-scale 3D MHD model for an industrial AC arc at the conditions to be found in Si-metal furnaces. As much can be learned from previous arc modelling, this paper will review different arc modelling approaches and develop a classification framework to categorize the modelling methods, both the more intricate MHD models as well as the simpler modelling approaches. Among the available simplified models, one will be selected and coupled with a submerged arc furnace electrical circuit model. The complete circuit model parameters such as resistances and inductances are updated using a 3D submerged arc furnace that has been developed in ANSYS Maxwell using an eddy current solver.","PeriodicalId":443021,"journal":{"name":"Engineering Educator: Courses","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131081126","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Sector Wise Stock Market Performance during Pre and Post COVID Era 行业明智的股票市场表现在前和后COVID时代

Engineering Educator: Courses Pub Date : 2021-04-30 DOI: 10.31033/IJEMR.11.2.28

Avijit Sikdar

{"title":"Sector Wise Stock Market Performance during Pre and Post COVID Era","authors":"Avijit Sikdar","doi":"10.31033/IJEMR.11.2.28","DOIUrl":"https://doi.org/10.31033/IJEMR.11.2.28","url":null,"abstract":"The spread of the COVID-19 pandemic has an unprecedented and immense impact on the world economy as well as the Indian economy. The stock market, treated as a barometer of the economic activity of any country is adversely affected. Not even in India, countries like Germany, France, the USA, and Spain have been strongly affected. Nationwide lockdown, restriction on the transportation system, demand-supply disequilibrium lead to slow down in the economy and create a fear factor among the participants of the capital market. Rapid fall in the share price and increased volatility are identified during this period. The present study tries to compare the stock price return volatility, no of the transaction, and delivery percentage of various listed companies listed on BSE during the pre and post COVID-19 periods to examine the effect of this pandemic on the economy as a whole. \u0000Period of Study: In this paper, we have consideredthe pre-COVID period from 1st September 2019 to 15th March 2020 and post COVID period from 16th March 2020 to August 2020. \u0000 \u0000Sample: for this study, we have selected 50 BSE listed Companies covering 5 sectors, viz. Pharma, Automobile, Industrial Products, Banking and Finance, and Consumer Goods. \u0000 \u0000Statistical Method: We have used paired sample t-test for comparing the arithmetical mean of different capital market parameters for these two sub-periods for each sector separately and standard deviation of daily return as a measure of volatility. \u0000 \u0000Conclusion: From the study, we have observed that average daily share price; average daily return; daily no. of transactions and volatility is significantly different from pre and post COVID period for most of the sectors. However, we have not perceived any significant difference in the delivery percentage of traded shares of these sectors between two study periods.","PeriodicalId":443021,"journal":{"name":"Engineering Educator: Courses","volume":"137 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133877977","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

3-D Printing for Task Training & Simulations: A Collaborative Process between Nurses and Engineers 任务训练和模拟的3d打印:护士和工程师之间的协作过程

Engineering Educator: Courses Pub Date : 2021-01-30 DOI: 10.2139/SSRN.3816204

L. Lioce, Gary Maddux, Ishella Fogle, Makenzie Fogle, Norven Goddard, Bernard Schroer

{"title":"3-D Printing for Task Training & Simulations: A Collaborative Process between Nurses and Engineers","authors":"L. Lioce, Gary Maddux, Ishella Fogle, Makenzie Fogle, Norven Goddard, Bernard Schroer","doi":"10.2139/SSRN.3816204","DOIUrl":"https://doi.org/10.2139/SSRN.3816204","url":null,"abstract":"This paper presents the process of developing 3D printed task trainers and simulators for healthcare education. The process is a collaborative effort between the College of Nursing at the University of Alabama in Huntsville (UAH) and the UAH Systems Management and Production Center. The three year collaboration led to development of a five-phase feedback and development process which is continually refined and now used for the development of all 3D printed training simulations in the interprofessional center. The first phase consists of nursing faculty and center engineers conducting a needs assessment. The output of this phase is a prioritized list of potential simulations. The second phase consists of a team of engineering students developing the 3D training simulation. The third phase is evaluating the simulation. A number of iterations are generally necessary to have a simulation that satisfied nursing requirements. The nursing faculty is actively involved throughout the process to assure the desired characteristics and fullest medical design to include texture, elasticity, density, strength, color and realism. The fourth phase is implementing the simulation into the program. The fifth phase is to document and evaluate the process. During the past several years a number of 3-D products have been developed and are now implemented. As an example, a 3D printed brain with multiple sclerosis (MS) is discussed in this paper. The 3D printed brain is being used to assist nurses better understand and more easily visualize lesions in MS patients. The 3D printed trainers are being used to provide nursing students with much needed hands-on experiences, to allow students to practice specific skills at a lower cost and to gain these skills in a safe setting. Included in this paper are a description of the process used to develop the training simulators, the use of simulators in nurse training the results and benefits.","PeriodicalId":443021,"journal":{"name":"Engineering Educator: Courses","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123940311","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Hong Kong’s Local Qualitative View about the Philosophy of Educational Technology 香港本地教育科技哲学的质性观

Engineering Educator: Courses Pub Date : 2020-12-28 DOI: 10.2139/ssrn.3756186

K. Lam

引用次数: 0

Cryo-Treated Blanking Punch Life Improvement Analysis 冷处理冲裁冲头寿命改进分析

Engineering Educator: Courses Pub Date : 2020-10-31 DOI: 10.31033/ijemr.10.5.21

M. Dhobe

{"title":"Cryo-Treated Blanking Punch Life Improvement Analysis","authors":"M. Dhobe","doi":"10.31033/ijemr.10.5.21","DOIUrl":"https://doi.org/10.31033/ijemr.10.5.21","url":null,"abstract":"Cryogenic treatment is a secondary process to traditional heat treatment used for improving the hardness and wear resistance of tool steels. Though the potential use of cryogenic treatment on AISI D2 tool steel under laboratory conditions has been well established by the researchers, it is essential to do the analysis to ensure its sustainable use for industrial application. Therefore, impact of cryogenic treatment on AISI D2 steel blanking punch was evaluated in terms of increase in production rate and its life. The cryogenically treated D2 tool steel punches were used and subjected to manufacture the control levers using blanking operations. The improved wear resistance of cryogenically treated punch resulted in increase in production and punch life more than 200%. Punch life was studied and correlated to increase in production & wear behavior of blanking punch. The AISI D2 steel samples were prepared and subjected to laboratory tests comprising of metallographic observations and hardness. It was found that laboratory tests were not enough to predict improvements in mechanical properties. The mechanism responsible for augmented wear resistance by cryogenic treatment was the conversion of retained austenite to martensite and precipitation of new secondary carbides.","PeriodicalId":443021,"journal":{"name":"Engineering Educator: Courses","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127795185","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

An Analysis of Constraints to Economic and Trade Cooperation between the China-Africa Community with a Shared Future 中非命运共同体经贸合作的制约因素分析

Engineering Educator: Courses Pub Date : 2020-10-05 DOI: 10.31033/IJEMR.10.5.3

Debongo Devincy Yanne Sylvaire

引用次数: 1

Review of Rural Marketing in India and Innovations in Rural Marketing 印度农村营销回顾与农村营销创新

Engineering Educator: Courses Pub Date : 2020-10-05 DOI: 10.31033/IJEMR.10.5.2

Bhavika Pandita Hakhroo

引用次数: 2

Iterative and Incremental Development Analysis Study of Vocational Career Information Systems 职业生涯信息系统的迭代与增量开发分析研究

Engineering Educator: Courses Pub Date : 2020-09-30 DOI: 10.5121/ijsea.2020.11502

O. Nonyelum

{"title":"Iterative and Incremental Development Analysis Study of Vocational Career Information Systems","authors":"O. Nonyelum","doi":"10.5121/ijsea.2020.11502","DOIUrl":"https://doi.org/10.5121/ijsea.2020.11502","url":null,"abstract":"Software development process presents various types of models with their corresponding phases required to be accordingly followed in delivery of quality products and projects. Despite the various expertise and skills of systems analysts, designers, and programmers, systems failure is inevitable when a suitable development process model is not followed. This paper focuses on the Iterative and Incremental Development (IID)model and justified its role in the analysis and design software systems. The paper adopted the qualitative research approach that justified and harnessed the relevance of IID in the context of systems analysis and design using the Vocational Career Information System (VCIS) as a case study. The paper viewed the IID as a change-driven software development process model. The results showed some system specification, functional specification of system and design specifications that can be used in implementing the VCIS using the IID model. Thus, the paper concluded that in systems analysis and design, it is imperative to consider a suitable development process that reflects the engineering mind-set, with heavy emphasis on good analysis and design for quality assurance.","PeriodicalId":443021,"journal":{"name":"Engineering Educator: Courses","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130831070","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

Uncertainty Region Decomposition Approach for Problem of Flexible One-Stage Heat Exchange Network Design 柔性一级换热网络设计问题的不确定性区域分解方法

Engineering Educator: Courses Pub Date : 2020-07-25 DOI: 10.2139/ssrn.3733571

T. Lapteva, N. N. Ziyatdinov, I. Emelyanov, D. Mitsai

{"title":"Uncertainty Region Decomposition Approach for Problem of Flexible One-Stage Heat Exchange Network Design","authors":"T. Lapteva, N. N. Ziyatdinov, I. Emelyanov, D. Mitsai","doi":"10.2139/ssrn.3733571","DOIUrl":"https://doi.org/10.2139/ssrn.3733571","url":null,"abstract":"The solving of system synthesis design problems without taking into account the requirement of system flexibility requires the solution of a discrete-continuous problem of nonlinear programming. To ensure the flexibility of the designed system, it is necessary to take into account possible changes in the conditions of its functioning, which leads to taking into account hard or chance constraints and the integral form of the objective function in the optimization problem. This paper proposes a method of uncertainty region decomposition for one-stage heat exchange system design problem, based on partitioning the uncertainty region into sub regions of smaller dimension and size. The resulting sub regions are selected according to the choice of subsets, including one hot stream and one cold stream, from the set of hot and cold streams. In this case, the resulting sub regions are associated only with uncertain parameters related to the change in the properties of flows from the corresponding subset. This will allow us to divide the problem into a set of problems for designing optimal flexible heat transfer subsystems of two flows. In addition, as a result of solving of the subproblems, the values of the effectiveness estimates will be obtained, independent of changes of the uncertain parameters. This will allow us to design an optimal efficient one-stage system of heat exchangers by selecting and combining subsystems with the best performance characteristics.","PeriodicalId":443021,"journal":{"name":"Engineering Educator: Courses","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130965594","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0