World Earthquake Engineering Pub Date : 2023-11-14 DOI: 10.37394/232025.2023.5.19

Farah Alnayhoum, Ibrahima Kalil Camara, Si̇nan Meli̇h Ni̇gdeli̇, Gebrai̇l Bekdaş

引用次数: 0

Random Furrowing for a Stochastic Unit Commitment Solution 随机单元承诺解的随机犁沟

World Earthquake Engineering Pub Date : 2023-11-06 DOI: 10.37394/232025.2023.5.14

P. C. Thomas, Shinosh Mathew, Bobin K Mathew

{"title":"Random Furrowing for a Stochastic Unit Commitment Solution","authors":"P. C. Thomas, Shinosh Mathew, Bobin K Mathew","doi":"10.37394/232025.2023.5.14","DOIUrl":"https://doi.org/10.37394/232025.2023.5.14","url":null,"abstract":"The Unit Commitment Problem involves the inherent difficulty of obtaining optimal combinatorial power generation schedules over a future short term period. The formulation of the generalized Unit Commitment Schedule formulation involves the specific combination of generation units at several de-rated capacities during each hour of the planning horizon, the load demand profile, load indeterminateness and several other operating constraints. This largely deterministic schedule continues to find favor with several plant operators, keeping in mind the close operating time-periods involved. However, the deterministic nature of the load profile is sought to be phased out by a stochastic pattern that is realistic and mirrors real-life situations, owing to modern trends in Demand side management. This shift is in tune with the ongoing power restructuring activities of electricity power reforms. The stochastic profile is obtained by a suitably tuned 2-parameter Weibull distribution that uses appropriate shape and scale parameters. The resulting band of generated load profiles are used to evaluate net power and penal costs associated with a set of pervasive randomized probability indices. The exact UCS comprises of a specific unit absolute state corresponding to a certain time period within the planning horizon. Subsequently, regression analysis is applied to establish the correlation between the absolute states and the cumulative randomized load demand against the intervals within the planning horizon. This method is analogous to random furrowing of probabilistic demand profile.","PeriodicalId":52482,"journal":{"name":"World Earthquake Engineering","volume":"38 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135635310","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

Application of Analytical Hierarchy Process (AHP) in the Selection of a Flexible Production System 层次分析法在柔性生产系统选择中的应用

World Earthquake Engineering Pub Date : 2023-11-06 DOI: 10.37394/232025.2023.5.15

Sara Srebrenkoska, Aleksandra Apostolova, Misko Dzidrov, Dejan Krstev

引用次数: 0

Feasibility Study and Design of a Stand-alone Floating Photovoltaic Structure for Toshka Lake 托什卡湖独立式浮动光伏结构的可行性研究与设计

World Earthquake Engineering Pub Date : 2023-11-06 DOI: 10.37394/232025.2023.5.17

Hanaa M. Farghally, Emad A. Sweelem

{"title":"Feasibility Study and Design of a Stand-alone Floating Photovoltaic Structure for Toshka Lake","authors":"Hanaa M. Farghally, Emad A. Sweelem","doi":"10.37394/232025.2023.5.17","DOIUrl":"https://doi.org/10.37394/232025.2023.5.17","url":null,"abstract":"A novel energy production system known as floating photovoltaic technology has captured the interest of many people due to its many advantages. The floating photovoltaic system contributes to a reduction in water evaporation and an increase in energy output. The development of floating photovoltaic power plants necessitates the study of these systems from both an electrical and mechanical structure perspective for research objectives. Numerous studies have been conducted on floating photovoltaic systems from various angles that have examined these systems. The goal of this paper is to provide a standard design procedure and performance for the construction of a floating photovoltaic energy system at the surface of Toshka lake for the generation of electricity to a household using PV Syst. software. Also it provides a logical analysis and up-todate assessment of the many characteristics and elements of floating photovoltaic systems as an energy production system. The performance ratio analysis reveals that the lowest value was obtained in the month of March is 64% and the maximum value was obtained in the month of December is 82%whereas the average value for year is 71.3%. Analysis of losses has also been done.","PeriodicalId":52482,"journal":{"name":"World Earthquake Engineering","volume":"595 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135635852","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

Monitoring of Manufacturing Processes Based on Econometric Computational Control 基于计量计算控制的制造过程监控

World Earthquake Engineering Pub Date : 2023-11-06 DOI: 10.37394/232025.2023.5.16

Daniela Ghelase, Luiza Daschievici

引用次数: 0

Pair Programming – Cubic Prediction Model Results for Random Pairs and Individual Junior Programmers 结对编程-随机结对和个人初级程序员的立方预测模型结果

World Earthquake Engineering Pub Date : 2023-11-06 DOI: 10.37394/232025.2023.5.18

Mary Adebola Ajiboye, Matthew Sunday Abolarin, Johnson Adegbenga Ajiboye, Abraham Usman Usman, Sanjay Misra

{"title":"Pair Programming – Cubic Prediction Model Results for Random Pairs and Individual Junior Programmers","authors":"Mary Adebola Ajiboye, Matthew Sunday Abolarin, Johnson Adegbenga Ajiboye, Abraham Usman Usman, Sanjay Misra","doi":"10.37394/232025.2023.5.18","DOIUrl":"https://doi.org/10.37394/232025.2023.5.18","url":null,"abstract":"Due to the rapidly evolving technology in the dynamic world, there is a growing desire among software clients for swift delivery of high-quality software. Agile software development satisfies this need and has been widely and appropriately accepted by software professionals. The maintainability of such software, however, has a significant impact on its quality. Unfortunately, existing works neglected to consider timely delivery and instead concentrated primarily on the flexibility component of maintainability. This research looked at maintainability as a function of time to rectify codes among Individual Junior and Random pair software developers. Data was acquired from an experiment performed on software developers in the agile environment and analyzed to develop the quality model metrics for maintainability which was used for prediction. One hundred programmers each received a set of agile codes created in the Python programming language, with deliberate bugs ranging from one to ten. The cubic regression model was used for predicting time spent on debugging errors above ten bugs. Results show that the random pair programmers spent an average time of 21.88 min/error while the individual programmers spent a lesser time of 16.57 min/error.","PeriodicalId":52482,"journal":{"name":"World Earthquake Engineering","volume":"1992 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135636078","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

Facility Layout optimization through Quality Function Deployment 通过质量功能部署优化设施布局

World Earthquake Engineering Pub Date : 2023-10-23 DOI: 10.37394/232025.2023.5.13

Raluca Dovleac (Nicolaescu)

引用次数: 0

Notes on Various Transforms Identified by Some Special Functions with Complex (or Real) Parameters and Some of Related Implications 关于复(实)参数特殊函数所识别的各种变换及其意义的注释

World Earthquake Engineering Pub Date : 2023-10-18 DOI: 10.37394/232025.2023.5.12

Hüseyi̇n Irmak, Tolga Han Açikgöz

引用次数: 0

Modern Methods for Modelling Bolted Joints at the Assembly Stage – A Systematic Review 装配阶段螺栓连接建模的现代方法-系统回顾

World Earthquake Engineering Pub Date : 2023-09-27 DOI: 10.37394/232025.2023.5.11

Rafał Grzejda

{"title":"Modern Methods for Modelling Bolted Joints at the Assembly Stage – A Systematic Review","authors":"Rafał Grzejda","doi":"10.37394/232025.2023.5.11","DOIUrl":"https://doi.org/10.37394/232025.2023.5.11","url":null,"abstract":"The main aim of the paper is to catalog ways of modeling bolted joints and introducing bolt preload using the finite element method. The paper presents models of bolted joints published in the current decade (i.e. after 1 January 2021 and up to 10 May 2023) in journals of the world's largest scientific publishers, such as: Elsevier, Springer, and MDPI, among others. Reporting of the systematic review was carried out based on PRISMA guidelines. The databases were searched with the EBSCO multi-search engine for the following keywords: bolted joint model, bolted connection model, preload, and finite element method. Additionally, the search results were narrowed down to peer-reviewed papers from the discipline of engineering and written in English. This yielded 2,712 records for further analysis. After removing duplicates from this group, screening was carried out, based on which 1,476 records were excluded from the study. For the remaining group of reports, an eligibility assessment was performed, after which a further 210 reports were excluded from the study. Finally, 86 papers were included in the review. As a result of their examination, six groups of simplified fastener models currently used in the modeling of bolted joints at the assembly stage were described.","PeriodicalId":52482,"journal":{"name":"World Earthquake Engineering","volume":"326 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135538802","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

Some Questions of Computational Models in Continuum Mechanics 连续介质力学中计算模型的几个问题

World Earthquake Engineering Pub Date : 2023-09-15 DOI: 10.37394/232025.2023.5.10

Evelina Prozorova

引用次数: 0

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