American journal of engineering, science and technology最新文献

{"title":"Optimization Study of Methyl Ester (Biodiesel) Synthesis from Chicken Tallow Using Polyoxomolybdate Catalyst","authors":"Ibrahim Garba Wawata, Abubakar Umar Birnin Yauri, Aliyu Muhammed, Babayemi Wasiu","doi":"10.11648/j.ajset.20230803.18","DOIUrl":"https://doi.org/10.11648/j.ajset.20230803.18","url":null,"abstract":"","PeriodicalId":93409,"journal":{"name":"American journal of engineering, science and technology","volume":"34 19 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77100327","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}

{"title":"Using Mechanical Vibration to Enhance Heat Transfer on an Extended Surface: A Review Study","authors":"Furqan Haider Mohammed Ali, Ehsan Fadhil Abbas, Iesam Jondi Hasan, Shahen Mohammed Fakhraldin","doi":"10.11648/j.ajset.20230803.16","DOIUrl":"https://doi.org/10.11648/j.ajset.20230803.16","url":null,"abstract":"","PeriodicalId":93409,"journal":{"name":"American journal of engineering, science and technology","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90697601","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}

{"title":"Hydraulic Performance Evaluation of Diversion Weir and Canal Structures: Case Study of Basaka Small Scale Irrigation Scheme, Wayu Tuka, East Wallaga, Oromia, Ethiopia","authors":"Gemechu Mosisa, Dereje Adeba","doi":"10.11648/j.ajset.20230803.15","DOIUrl":"https://doi.org/10.11648/j.ajset.20230803.15","url":null,"abstract":"","PeriodicalId":93409,"journal":{"name":"American journal of engineering, science and technology","volume":"23 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82132708","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}

{"title":"A Modified Approach of Dijkstra’s Method for Finding Shortest Path in a Weighted Directed Graph","authors":"Md. Mehedi Hassan, Md. Asadujjaman, Md. Golam Robbani","doi":"10.11648/j.ajset.20230803.14","DOIUrl":"https://doi.org/10.11648/j.ajset.20230803.14","url":null,"abstract":": The shortest route technique is a fundamental problem in various fields, including transportation, logistics, network routing","PeriodicalId":93409,"journal":{"name":"American journal of engineering, science and technology","volume":"8 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79024741","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}

{"title":"Electrical Power Generation from Heat Recovered at the Throat of a Downdraft Biomass Gasifier","authors":"Nzihou Jean Fidele, Hamidou Salou, Imbga Kossi, Segda Bila Gerard, Ouattara Frédéric, Tiemtore Hamadou","doi":"10.11648/j.ajset.20230803.12","DOIUrl":"https://doi.org/10.11648/j.ajset.20230803.12","url":null,"abstract":"","PeriodicalId":93409,"journal":{"name":"American journal of engineering, science and technology","volume":"629 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78976938","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}

{"title":"The Relationship Between Noise and Temperature to the Level of Work Fatigue in Workers in the Cutting Section","authors":"Tri Budiyanto, M. Yusuf, Bintang Panjiwani Kusuma As’ari","doi":"10.11648/j.ajset.20230803.13","DOIUrl":"https://doi.org/10.11648/j.ajset.20230803.13","url":null,"abstract":"","PeriodicalId":93409,"journal":{"name":"American journal of engineering, science and technology","volume":"30 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81372688","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}

{"title":"Shear Strength Reduction Analysis of Slope by Numerical Modelling Based on Finite Element Method","authors":"Mahendra Acharya, Asim Timalsina, Ujjan Paudel","doi":"10.11648/j.ajset.20230803.11","DOIUrl":"https://doi.org/10.11648/j.ajset.20230803.11","url":null,"abstract":": The stability of the slope is the crucial factor in geotechnical engineering, particularly when the slopes are composed of soils. The purpose of this research is to analyze the shear strength reduction of glacial till slope using phase 2 software. Where, conclusive analysis is based on two methods, Limit equilibrium and the Mohr-Colomb criterion Finite Element (FE) Shear Strength Reduction (SSR). The methodology embodied the major laboratory test results such as Atterberg limits, Direct Shear Strength test, unconfined compression strength. The experimental results were than used in phase 2 software, where 2D plane strain model of the slope was created. The impact of modifications in shear strength parameters on the factor of safety is then examined. The analysis showed that the glacial till slope experienced a significant reduction in strength, with the Limit Equilibrium method FOS ranging from 0.94 to 1.54, while Mohr’s criterion Finite Elements Shear Strength Reduction ranged from 0.31 to 0.61. The analysis results, in conclusion, the shear strength reduction of slope is reliable and efficient for determining the stability of slopes. The use of both aforementioned methods provides accurate and consistent results that can aid in making effective engineering decisions.","PeriodicalId":93409,"journal":{"name":"American journal of engineering, science and technology","volume":"46 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77631999","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}

{"title":"Applied of Visualization Technology in Representation Levels on Vocational High Education","authors":"I. Made Rajendra, Ida Ayu Anom Arsani, M. Yusuf, I. Made Sudana","doi":"10.11648/j.ajset.20230802.16","DOIUrl":"https://doi.org/10.11648/j.ajset.20230802.16","url":null,"abstract":"","PeriodicalId":93409,"journal":{"name":"American journal of engineering, science and technology","volume":"208 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77612163","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}

{"title":"Comparative Study of Transfer Functions for NRAD and AGN-201 Reactor Systems","authors":"H. Aryal","doi":"10.11648/j.ajset.20230802.14","DOIUrl":"https://doi.org/10.11648/j.ajset.20230802.14","url":null,"abstract":": The project is about building an infrastructure for an open loop technique and implementing this technique to measure the reactivity worth of small samples. The reactivity samples are allowed to oscillate back and forth in the reactor system to cause perturbations and the corresponding reactor response is measured in the form of the transfer function. The transfer function obtained is used to determine stability characteristics along with other kinetic parameters such as delayed neutron fraction, prompt neutron lifetime, shutdown margins, and absolute power . This paper compares transfer functions for reactors like Neutron Radiography (NRAD) and Aerojet General Nuclear (AGN-201). The magnitude of the transfer function correlates with the reactivity of the sample that caused the perturbation. In addition, the transfer function allows one to determine whether the reactor is a stable system or not. In other words, the reactor’s response to the change in neutron population in the reactor can be easily described. Moreover, a transfer function measurement is useful to extract important kinetic parameters of the reactor system, such as instance prompt neutron generation lifetime, reactivity shutdown margin, absolute power, etc. The transfer function plots presented in the results section correlate the reactivity of the sample that caused perturbations. NRAD was found to have a higher break frequency than that AGN-201. This was an expected result since break frequency is inversely proportional to neutron generation time. With this relation, break frequency was found to be around 306 Hertz. So, the reactor cannot respond beyond this frequency but passes the low frequencies. The corresponding analysis and comparative transfer function plots using MATLAB for these two reactor systems are presented in the results section. Many reactivity measurements have been already in practice however if the transfer function technique can give reactivity measurements with similar or better precision and accuracy, it could be a great benefit. Moreover, this can be installed in those facilities where more complex systems cannot be incorporated easily.","PeriodicalId":93409,"journal":{"name":"American journal of engineering, science and technology","volume":"22 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82459808","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}

{"title":"Effect of Different Crushed Stone on Denim & Knit Fabric to Ensure Sustainability","authors":"Eanamul Haque Nizam, S. Uddin, Shihab Moniruzzaman, Arif Reyad Sarker","doi":"10.11648/j.ajset.20230802.13","DOIUrl":"https://doi.org/10.11648/j.ajset.20230802.13","url":null,"abstract":"","PeriodicalId":93409,"journal":{"name":"American journal of engineering, science and technology","volume":"407 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76712509","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}