发布求助
文献互助 智能选刊 最新文献

Al-Salam Journal for Engineering Science and Technology最新文献

筛选
英文 中文
Dielectric Reduction of Nanometric Amorphous Silicon 纳米非晶硅的介电降低
Al-Salam Journal for Engineering Science and Technology Pub Date : 2022-01-10 DOI: 10.55145/ajest.2022.01.01.002
Hussein K. Mejbel, Prof.Dr. Moafak Abdulrida
{"title":"Dielectric Reduction of Nanometric Amorphous Silicon","authors":"Hussein K. Mejbel, Prof.Dr. Moafak Abdulrida","doi":"10.55145/ajest.2022.01.01.002","DOIUrl":"https://doi.org/10.55145/ajest.2022.01.01.002","url":null,"abstract":"Theoretical values of in amorphous silicon quantum dots (1.8 – 12 nm)dielectric reduction have been calculated. These calculations presented that the dielectric constant of amorphous silicon quantum dots is suppressed. Also, it has been investigated the frequency dependence of the dielectric constant. The variation of the dielectric constant with frequency is similar to the variation of polarizability and polarization. The dielectric constant is made up of contributions from electronic, atomic, and space charge polarization. With the presented calculations, the effect of quantum confinement was adopted, since the bandgap of nano semiconductors can be governed by the size of amorphous silicon quantum dots.","PeriodicalId":129949,"journal":{"name":"Al-Salam Journal for Engineering Science and Technology","volume":"194 6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123656099","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
IMPROVEMENT OF TRIBOLOGICAL PROPERTIES FOR LUBRICANTS BY ADDING GRAPHENE CONCENTRATE 石墨烯精矿对润滑油摩擦学性能的改善
Al-Salam Journal for Engineering Science and Technology Pub Date : 2022-01-10 DOI: 10.55145/ajest.2022.01.01.003
Darwish Alsaadi, Vasilievich, Adnan
{"title":"IMPROVEMENT OF TRIBOLOGICAL PROPERTIES FOR LUBRICANTS BY ADDING GRAPHENE CONCENTRATE","authors":"Darwish Alsaadi, Vasilievich, Adnan","doi":"10.55145/ajest.2022.01.01.003","DOIUrl":"https://doi.org/10.55145/ajest.2022.01.01.003","url":null,"abstract":"This work is improving the performance properties of greases additives graphene concentrate. It has been established that the addition of 1% graphene concentrate to the lubricant Solidol J contributes to an increase in its anti-wear properties by more than 30 percent. With the enrichment of commercial grease Lithol-24 with graphene concentrate, a decrease in the diameter of the spot of wear of the balls was determined at the plate size from 0.36 mm to 0.30 mm. As a result of testing lubricants in rolling bearings, a decrease in the heating temperature of bearings operating on lubricants enriched with graphene concentrate was found in comparison with commercial lubricants.","PeriodicalId":129949,"journal":{"name":"Al-Salam Journal for Engineering Science and Technology","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129062784","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
Developed High Scale Bagging Algorithm for E-Tourism Advising System 开发了面向电子旅游咨询系统的大规模套袋算法
Al-Salam Journal for Engineering Science and Technology Pub Date : 2022-01-10 DOI: 10.55145/ajest.2022.01.01.005
Rula A. Hamid, M. Croock
{"title":"Developed High Scale Bagging Algorithm for E-Tourism Advising System","authors":"Rula A. Hamid, M. Croock","doi":"10.55145/ajest.2022.01.01.005","DOIUrl":"https://doi.org/10.55145/ajest.2022.01.01.005","url":null,"abstract":"Filtering huge amounts of data is a very critical issue with the explosion of data over the web and cloud storage. A need to classify and sort these data is linked to that issue to facilitate data management and database building for various applications. Machine learning techniques are the most suitable to deal with such big data.\u0000\u0000One of the applications that can be implemented in machine learning is a tourist advising system that harvests data from tourism sites and aggregates different types of data about them (humidity, temperature, distance from user’s country, etc…) and classifies them. These data should be updated constantly, since the system provides real-time decision based on real-time data, where they are used later on by a bagging system to provide the user with suggested tourism sites with percentage to how suitable these sites according to the preferences submitted in addition to some other criteria.","PeriodicalId":129949,"journal":{"name":"Al-Salam Journal for Engineering Science and Technology","volume":"846 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117087803","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
Implementation of COFDM Reed Solomon using TMS320C6713 用TMS320C6713实现COFDM Reed Solomon
Al-Salam Journal for Engineering Science and Technology Pub Date : 2022-01-10 DOI: 10.55145/ajest.2022.01.01.004
Sura Mohammed Mubarak
{"title":"Implementation of COFDM Reed Solomon using TMS320C6713","authors":"Sura Mohammed Mubarak","doi":"10.55145/ajest.2022.01.01.004","DOIUrl":"https://doi.org/10.55145/ajest.2022.01.01.004","url":null,"abstract":"This sheet research presents the implementation of Coded Orthogonal Frequency Division Multiplexing (COFDM) communication system encoded using Reed Solomon (RS) Coding implemented on TMS320C6713 platform. The collaboration of MATLAB integrated development environment (IDE) and Code Composer Studio (CCS) are adopted. The real time implementation is one of the most difficult issues of OFDM implementation. The problem of real time implementation is the memory consumption and the processing time. The other problem is Synchronization of OFDM receiver. Time and frequency synchronization to distinguish the begin of the OFDM symbol. The capability of RS for encoding the error correction ability makes it the most used error correction codes algorithm, so we use it with OFDM systems to combining them make the system has excellent performance potentiality in multipath and fading channels. The bit error rate and the number of error bits are calculated during each test on the system.","PeriodicalId":129949,"journal":{"name":"Al-Salam Journal for Engineering Science and Technology","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124108512","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
Analysis and modeling the electronic document management system of ministries of Iraq 伊拉克政府部门电子文件管理系统的分析与建模
Al-Salam Journal for Engineering Science and Technology Pub Date : 2022-01-10 DOI: 10.55145/ajest.2022.01.01.001
Mustafa Jamal Jalal
{"title":"Analysis and modeling the electronic document management system of ministries of Iraq","authors":"Mustafa Jamal Jalal","doi":"10.55145/ajest.2022.01.01.001","DOIUrl":"https://doi.org/10.55145/ajest.2022.01.01.001","url":null,"abstract":"","PeriodicalId":129949,"journal":{"name":"Al-Salam Journal for Engineering Science and Technology","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128079158","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
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：481959085
Book学术官方微信