Journal of Studies in Science and Engineering最新文献_第3页

Comparison of Handwritten Recognition Methods on Arabic and Latin Characters 阿拉伯文与拉丁文手写识别方法之比较

Journal of Studies in Science and Engineering Pub Date : 2022-09-11 DOI: 10.53898/josse2022232

M. Tutar

引用次数: 0

Appraisal of Day-lighting in Sustainable Housing Development in Developing Countries 发展中国家可持续住房发展中的采光评价

Journal of Studies in Science and Engineering Pub Date : 2022-06-30 DOI: 10.53898/josse2022225

E. Atamewan

{"title":"Appraisal of Day-lighting in Sustainable Housing Development in Developing Countries","authors":"E. Atamewan","doi":"10.53898/josse2022225","DOIUrl":"https://doi.org/10.53898/josse2022225","url":null,"abstract":"Using natural light in architectural spaces has been very beneficial in several ways including energy efficiency, cost control, health and wellbeing of users, and prevention of electricity dissipation and other negative effects of artificial lighting. Daylight in architecture satisfies both mental and physical human needs and reduces fossil energy consumption. This paper appraised the use of daylighting in sustainable housing development in developing countries and discussed the benefits of natural/daylight in housing designs, including the reasons for the sudden disapproval of daylighting in contemporary designs. The study employed a literature review technique, appraisal of case studies of selected daylight-driven buildings and personal observations. Findings revealed that building occupants now prefer daylight for both illumination and environmental stimulations because lack of daylight results in discomfort and stress and affects the psychological and physiological health of building occupants. The study concluded that architects in developing countries should embrace daylighting in their designs due to its numerous benefits in making them sustainable. The study recommended the inclusion of daylighting requirements in all architectural designs by planning authorities in developing countries.","PeriodicalId":388003,"journal":{"name":"Journal of Studies in Science and Engineering","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128905343","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: 2

Implementation and Analysis of Motion Control Techniques on an Industrial 7 DOF Robotic Manipulator 工业7自由度机械臂运动控制技术的实现与分析

Journal of Studies in Science and Engineering Pub Date : 2022-06-24 DOI: 10.53898/josse2022223

Syed Huzaifa Ali, Ehtisham Ul Hassan

引用次数: 0

Importance of Accounting Information in Management Decision-Making Process 会计信息在管理决策过程中的重要性

Journal of Studies in Science and Engineering Pub Date : 2022-06-24 DOI: 10.53898/josse2022224

M. Mohammed

引用次数: 1

Various Analytical Techniques for the Isolation and Identification of Flavonoid Compounds: A Descriptive Review 黄酮类化合物分离鉴定的各种分析技术综述

Journal of Studies in Science and Engineering Pub Date : 2022-06-24 DOI: 10.53898/josse2022221

Dlgash Hammad Maruf, Vian Sadiq Esmaeil, Akam Jasim Mustafa

{"title":"Various Analytical Techniques for the Isolation and Identification of Flavonoid Compounds: A Descriptive Review","authors":"Dlgash Hammad Maruf, Vian Sadiq Esmaeil, Akam Jasim Mustafa","doi":"10.53898/josse2022221","DOIUrl":"https://doi.org/10.53898/josse2022221","url":null,"abstract":"Flavonoids are phytochemical compounds that can be found in a wide range of plants, including vegetables, fruits, and leaves. This vast set of phenolic plant elements can be split into numerous classes based on their diverse structures, including Flavanones, Flavanols, Flavonols, Flavones, Isoflavones, and Anthocyanins. Interestingly, they possess various applications such as natural dyes, medicinal uses, and food sources. Flavonoids have been shown to have anti-cancer, antioxidant, anti-inflammatory, and anti-viral properties in clinical studies. They also have cardio-protective and neuroprotective effects. In addition, they are responsible for the presence of different colors and flavors in various fruits, flowers, and food sources. Multiple spectroscopic techniques, including Infrared spectroscopy (IR), Ultraviolet spectroscopy (UV), and Nuclear magnetic resonance (NMR) spectroscopy, are being used to identify the structure of flavonoids. UV-Vis spectroscopy data can be used to estimate the position, type, and number of substituents present in a conjugated system. IR spectroscopy is primarily used to determine the type of functional groups and aromatic ring substitutions. The structure of Flavonoids, their type, number of protons, and carbons can be determined by NMR spectroscopy. The current review was based on searches of the Scopus, Web of Science, and Google Scholar databases for literature reviews. The purpose of this review article is to demonstrate the structure, function, and different extraction methods of flavonoids. It also summarizes the isolation and analytical identification techniques for flavonoids.","PeriodicalId":388003,"journal":{"name":"Journal of Studies in Science and Engineering","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123606354","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

Design and Analysis of Hollow Catenoidal Horn Profile for Ultrasonic Machining of Composite Materials 复合材料超声加工中空心链状角形的设计与分析

Journal of Studies in Science and Engineering Pub Date : 2022-06-24 DOI: 10.53898/josse2022222

Muhammad Mubashir, Raza Mutahir, Muhammad Shoaib Ur Rehman

{"title":"Design and Analysis of Hollow Catenoidal Horn Profile for Ultrasonic Machining of Composite Materials","authors":"Muhammad Mubashir, Raza Mutahir, Muhammad Shoaib Ur Rehman","doi":"10.53898/josse2022222","DOIUrl":"https://doi.org/10.53898/josse2022222","url":null,"abstract":"The composite materials Si/AlC, crystal quartz, and ceramic glass are becoming an important part of the present society in many engineering and non-engineering fields. Conventional methods available for machining these materials have many flaws due to which their application on large scale is restricted. A non-conventional process known as ultrasonic machining (USM), can be implemented for machining of these materials effectively. Anyhow machining efficiency of USM greatly depends upon its horn design and therefore in the present study a horn based on a catenoidal profile with aluminum and titanium material for USM was designed and developed by using solid works and ANSYS. Modal and harmonic analysis was done on the horn for computation of various parameters of interest such as resonant frequency, amplitude vibration and equivalent stresses. After the computation of the results, they were analyzed and compared with those available in the literature in terms of stresses and magnification factor for their validation comparison with literature, it was found that an aluminum catenoidal horn shows higher magnification with the least stress magnitude as compared to horns avail-able in the literature and hence can be used in USM as a replacement for existing horns.","PeriodicalId":388003,"journal":{"name":"Journal of Studies in Science and Engineering","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128599395","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

CFD Analysis of NACA 0012 Aerofoil to Investigate the Effect of Increasing Angle of Attack on Coefficient of Lift and Coefficient of Drag 对NACA 0012型翼型进行CFD分析，研究迎角增大对升力系数和阻力系数的影响

Journal of Studies in Science and Engineering Pub Date : 2022-03-31 DOI: 10.53898/josse2022216

M. H. Khalid

引用次数: 0

Application of CFD to Reduce the Cooling Load of a Building: An Alternative Approach for Green Building Design 应用CFD降低建筑冷负荷:绿色建筑设计的另一种途径

Journal of Studies in Science and Engineering Pub Date : 2022-03-28 DOI: 10.53898/josse2022215

M. H. Khalid

{"title":"Application of CFD to Reduce the Cooling Load of a Building: An Alternative Approach for Green Building Design","authors":"M. H. Khalid","doi":"10.53898/josse2022215","DOIUrl":"https://doi.org/10.53898/josse2022215","url":null,"abstract":"Approximately 23 % of total CO2 emissions are attributed to the construction industry each year; in 2009, the industry produced 5.7 billion tonnes of CO2. Green building design is concerned with constructing a building in such a way that its carbon footprint is reduced throughout its life span. Lecture rooms are key components of educational institutions because they are where students spend the majority of their time. This study aims to propose a methodology to convert the existing designs of building to green buildings by optimizing the airflow. The lecture room at UET was chosen for this investigation because the air velocity distribution inside the room is not uniform due to the current design, which influences the convective heat loss from the room by creating pressure and temperature gradient. SOLIDWORKS 2021 was used to create the model of a lecture theatre. Because the majority of the rooms are naturally ventilated, a fluid dynamics analysis was performed on ANSYS Fluent 19.1 to ensure proper air ventilation. Natural airflow was improved by the addition of an extra column of windows. The total electric energy load has been computed, and the quantity of solar panels necessary to meet the demand has been recommended.","PeriodicalId":388003,"journal":{"name":"Journal of Studies in Science and Engineering","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114328988","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

Character Recognition of Arabic Handwritten Characters Using Deep Learning 使用深度学习的阿拉伯手写字符识别

Journal of Studies in Science and Engineering Pub Date : 2022-03-19 DOI: 10.53898/josse2022213

Mohammed Widad Jbrail, M. Tenekeci

引用次数: 3

Seismic Performance of I-shaped Beam-column Joint with Cubical and Triangular Slit Dampers Based on Finite Element Analysis 基于有限元分析的方形和三角形缝缝减震器的工字梁柱节点抗震性能

Journal of Studies in Science and Engineering Pub Date : 2022-03-14 DOI: 10.53898/josse2022212

Rzgar A. Mohammed, Adnan Latiff Saifaddin, Hersh F. Mahmood, N. Habibi

{"title":"Seismic Performance of I-shaped Beam-column Joint with Cubical and Triangular Slit Dampers Based on Finite Element Analysis","authors":"Rzgar A. Mohammed, Adnan Latiff Saifaddin, Hersh F. Mahmood, N. Habibi","doi":"10.53898/josse2022212","DOIUrl":"https://doi.org/10.53898/josse2022212","url":null,"abstract":"From the layout of a metallic structure`s beam-column connection w, while the seismic design is inside the dissipative method, precise contributors and zones ought to admit the growth of plastic deformation, and many metallic second resisting frames fail on the beam-column joints. This examines designed a unique structural machine with diverse slit dampers to triumph over this challenge, which can be easier to deliver overall seismic performance in the structural device that has been proposed. Plastic deformation is confined to the slit dampers at the end flange, which is the machine's key characteristic. The recommended connection's seismic overall performance changed into confirmed the use of the Abaqus software program utility to software systems with diverse slit damper forms. The proposed hyperlink exhibited first-rate hysteretic conduct in accordance to check results. Furthermore, on this machine, strength dissipation and plastic deformation focus on the diverse shapes of slit dampers, while the inelastic behaviour of the beams and columns is prevented via a suitable ability layout. The conduct of triangular and cubical shapes of slit dampers withinside the connection among a metallic beam and a container column is defined in this paper.","PeriodicalId":388003,"journal":{"name":"Journal of Studies in Science and Engineering","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125243359","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