Engineering and Technology Journal最新文献_第10页

Effect of the Magnetic Field and Exhaust Gas Recirculation on the Performance and Emissions of Biodiesel Engine Coated with Nanoceramics 磁场和废气再循环对涂有纳米陶瓷的生物柴油发动机性能和排放的影响

Engineering and Technology Journal Pub Date : 2023-11-18 DOI: 10.30684/etj.2023.140518.1468

Q. Mahdi, Mahmoud Mashkour, Ibtihal A. Mhmood

引用次数: 0

EVALUATING POTENTIAL BIODEGRADABLE TWINE FOR USE IN THE BLUE SWIMMING CRAB COLLAPSIBLE POTS 评估蓝游蟹可折叠网箱中可能使用的可生物降解麻绳

Engineering and Technology Journal Pub Date : 2023-11-17 DOI: 10.47191/etj/v8i11.11

Rifqah Athiyyah, Domu Simbolon, Didin Komarudin, Dwi Putra Yuwandana, Riki Saputra, Mochammad Riyanto

{"title":"EVALUATING POTENTIAL BIODEGRADABLE TWINE FOR USE IN THE BLUE SWIMMING CRAB COLLAPSIBLE POTS","authors":"Rifqah Athiyyah, Domu Simbolon, Didin Komarudin, Dwi Putra Yuwandana, Riki Saputra, Mochammad Riyanto","doi":"10.47191/etj/v8i11.11","DOIUrl":"https://doi.org/10.47191/etj/v8i11.11","url":null,"abstract":"This study addresses the global issue of lost fishing gear, specifically traps and pots, which rank second regarding gear lost in marine environments. These traps often contain synthetic fibers that decompose slowly, producing long-lasting ghost fishing. To mitigate this problem, the study explores using biodegradable materials in trap construction. The research focuses on assessing biodegradable materials' physical and mechanical properties and how immersion affects them. Field surveys and sample immersion were conducted at Kejawanan Fishing Port Cirebon, with subsequent testing at IPB University. The study compared three natural materials: cotton, agel, and hemp twines. The cotton twine stood out with its soft texture compared to the rougher agel and hemp twines. Regarding elongation, cotton 20.76% outperformed agel 13.70% and hemp 4.42%. Sequential breaking strength tests revealed cotton's superior strength at 9.84 kgf over agel at 3.61 kgf and hemp at 2.72 kgf, even after immersion. These findings indicate that cotton twine is a viable biodegradable alternative to synthetic twines in blue swimming crab pot fishing. By adopting such materials, fishermen can reduce the environmental impact of lost gear and contribute to more sustainable fishing practices.","PeriodicalId":507832,"journal":{"name":"Engineering and Technology Journal","volume":"27 8","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139265384","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

CROP WATER REQUIREMENT IN A SUB-WATERSHED OF MAHABUBNAGAR DISTRICT OF TELANGANA FOR KHARIF RICE CULTIVATION USING GEOSPATIAL TECHNIQUES 利用地理空间技术计算泰兰加纳邦 Mahabubnagar 地区一个分流域种植旱稻的作物需水量

Engineering and Technology Journal Pub Date : 2023-11-17 DOI: 10.47191/etj/v8i11.06

A. Choudhury, Vazeer Mahammood, K. H. V. Durga Rao

引用次数: 0

COMPRESSIVE STRENGTH CHARACTERISTICS OF PAWPAW LEAF ASH AND BAMBOO LEAF ASH BLENDED CEMENT CONCRETE 棕榈叶灰和竹叶灰混合水泥混凝土的抗压强度特性

Engineering and Technology Journal Pub Date : 2023-11-17 DOI: 10.47191/etj/v8i11.08

A. Olaniyi, Popoola Oyinade Christianah, Ewulo Lois Oluwadara

{"title":"COMPRESSIVE STRENGTH CHARACTERISTICS OF PAWPAW LEAF ASH AND BAMBOO LEAF ASH BLENDED CEMENT CONCRETE","authors":"A. Olaniyi, Popoola Oyinade Christianah, Ewulo Lois Oluwadara","doi":"10.47191/etj/v8i11.08","DOIUrl":"https://doi.org/10.47191/etj/v8i11.08","url":null,"abstract":"The study determined the physical properties of pawpaw leaf ash and bamboo leaf ash blended cement concrete, the effect of curing age on compressive strength characteristics of pawpaw leaf ash and bamboo leaf ash blended cement concrete, and the effect of percentage replacement of cement with pawpaw leaf ash and bamboo leaf ash blended cement concrete on compressive strength. 100 ×100×100 mm cubes specimens were cast, and the concrete compressive strengths were determined at 7, 14, 21 and 28 days of curing. The control sample, with 0% BLA and PLA replacement, exhibited the highest strength at 28 days but the lowest at 7 days. The sample with 5% BLA and PLA replacement showed an increase in strength at 14 days, a decrease at 21 days, and another increase at 28 days, with the highest strength observed at 14 days. On the other hand, the samples with 10%, 15%, and 20% BLA and PLA replacement demonstrated a consistent increase in strength, although a decrease in strength was observed at 28 days. The experiment revealed that the highest compressive strength was achieved at 28 days with 0% BLA and PLA replacement, while the lowest compressive strength was observed at 7 days with 20% BLA and PLA replacement. These findings indicate that the rate of strength development in BLA and PLA blended cement concrete is slower during the early curing period (7 days) but accelerates during later ages (14 days and 21 days), with a slight decrease at 28 days. In contrast, the control sample without BLA and PLA replacement exhibited slow strength development initially (7 days) but showed faster progress at later ages. Based on the test results, 20% replacement was found to be the optimum level for both compressive strength and workability of concrete with cement partially replaced with BLA and PLA.","PeriodicalId":507832,"journal":{"name":"Engineering and Technology Journal","volume":"164 12","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139266343","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

IDENTIFICATION OF THE DISTRIBUTION OF MUZZLE VELOCITY AND MAXIMUM PRESSURE IN THE BARREL FOR A TYPICAL RIFLE 确定典型步枪的枪口速度和枪管内最大压力的分布情况

Engineering and Technology Journal Pub Date : 2023-11-17 DOI: 10.47191/etj/v8i11.10

Hung Nguyen Van, Duc Vuong Trung, Dung Nguyen Van

引用次数: 0

ASSESSMENT OF THE DURABILITY OF STEEL AND CONCRETE STRUCTURES OF CONSTRUCTION BUILDINGS IN CONSTRUCTION (KDP) (CASE STUDY OF STILL BUILDINGS) 在建建筑钢结构和混凝土结构耐久性评估（KDP）（静态建筑案例研究）

Engineering and Technology Journal Pub Date : 2023-11-17 DOI: 10.47191/etj/v8i11.12

Biatma Syanjayanta

{"title":"ASSESSMENT OF THE DURABILITY OF STEEL AND CONCRETE STRUCTURES OF CONSTRUCTION BUILDINGS IN CONSTRUCTION (KDP) (CASE STUDY OF STILL BUILDINGS)","authors":"Biatma Syanjayanta","doi":"10.47191/etj/v8i11.12","DOIUrl":"https://doi.org/10.47191/etj/v8i11.12","url":null,"abstract":"Detailed structural planning of a multi-storey building requires a long and complicated series of analysis and calculation processes, which are based on certain technical assumptions and considerations The aim of the activity is to inspect the condition of the structure of the stalled building in KDP status, both in terms of material quality and other structural properties such as dimensions, layout and number of reinforcements and the strength of the structure itself. After that, an overall structural analysis of the building is carried out to determine the structural dimensions that meet the requirements. The results of this research, namely, based on the results of the inspection and analysis of existing conditions, state that, a building in construction under construction (KDP) status that has been abandoned for several years means the structure has experienced changes in strength so that it no longer corresponds to the initial calculations, both in terms of strength and cost. Policy makers must be more careful in determining budgets so that they do not hinder the implementation of construction work which results in buildings being stalled. Which of course will affect a number of things which will certainly be detrimental to all parties, especially government buildings whose source of funds comes from paying public taxes.","PeriodicalId":507832,"journal":{"name":"Engineering and Technology Journal","volume":"46 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139263483","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

AVAILABILITY AND RELIABILITY INDICES: A PRACTICAL APPROACH FOR AFAM THERMAL PLANT ASSESSMENT AND IMPROVEMENT 可用性和可靠性指数：用于评估和改进非洲原子能机构热电厂的实用方法

Engineering and Technology Journal Pub Date : 2023-11-17 DOI: 10.47191/etj/v8i11.09

W. A. Akpan, S.I. Beshel, N. I. Effeng, K.E. Akpan

引用次数: 0

Improvement of Performance Evaluation Using Hybrid Composite Electrode (Cu/Cr/WC/Ag) in Electric Discharge Machining 在放电加工中使用混合复合电极（Cu/Cr/WC/Ag）改进性能评估

Engineering and Technology Journal Pub Date : 2023-11-15 DOI: 10.30684/etj.2023.142962.1550

Ahmed Abdulwahhab, Abbas Ibrahim

{"title":"Improvement of Performance Evaluation Using Hybrid Composite Electrode (Cu/Cr/WC/Ag) in Electric Discharge Machining","authors":"Ahmed Abdulwahhab, Abbas Ibrahim","doi":"10.30684/etj.2023.142962.1550","DOIUrl":"https://doi.org/10.30684/etj.2023.142962.1550","url":null,"abstract":"is a major difficulty in electrical discharge machining (EDM). Due to their exceptional electrical and thermal properties, composite electrodes of various metals have become extremely popular. In this study, a composite electrode (Cu-1%Cr-0.5%WC-1%Ag) manufactured using the stir casting technique will be utilized to evaluate the electrical discharge machining (EDM) process. The study compares the performance between conventional pure copper electrodes and composite electrode utilization of stainless steel 304L as the workpiece material. The results indicate composite electrodes can increase machining effectiveness and reduce electrode wear. Utilizing a current of 10 A, with a pulse on time of 50µs followed by a pulse off time of 50 µs, reduced the tool wear rate to 0.215 gm/min for the composite electrode. By comparison, it was observed that the copper electrodes displayed a tool wear rate of 0.514 gm/min under the same conditions. While the pure copper electrode had the lowest material removal rate (MRR) at 54.5588 mm 3 /min, the composite electrode had the greatest MRR at 56.8689 mm 3 /min. The surface Roughness (SR) of the composite electrode was 3.747 μm; this value was lower than that of t he pure copper electrode, 3.967 μm. As a result, composite electrodes present a potentially viable substitute for traditional EDM electrodes.","PeriodicalId":507832,"journal":{"name":"Engineering and Technology Journal","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139273915","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

Enhancing Wind Tunnel Computational Simulations of Finite Element Analysis Using Machine Learning-Based Algorithms 利用基于机器学习的算法加强有限元分析的风洞计算模拟

Engineering and Technology Journal Pub Date : 2023-11-15 DOI: 10.30684/etj.2023.142873.1552

Luttfi A. Al-Haddad, Alaa Jaber, Latif Ibraheem, Sinan Al-Haddad, Naseem Ibrahim, Fawaz Abdulwahed

{"title":"Enhancing Wind Tunnel Computational Simulations of Finite Element Analysis Using Machine Learning-Based Algorithms","authors":"Luttfi A. Al-Haddad, Alaa Jaber, Latif Ibraheem, Sinan Al-Haddad, Naseem Ibrahim, Fawaz Abdulwahed","doi":"10.30684/etj.2023.142873.1552","DOIUrl":"https://doi.org/10.30684/etj.2023.142873.1552","url":null,"abstract":"Wind tunnels are essential for examining aircraft model aerodynamics, accurately simulating real-world conditions, and enhancing design and performance evaluations. This study introduces a novel technique to improve the time and accuracy of stress distribution forecasts in wind tunnel simulations. This method combines Finite Element Analysis (FEA) with two regression models: Support Vector Machine (SVM) and k - Nearest Neighbors (kNN). T he investigation begins with a thorough analysis of ANSYS fluent flow data, which reveals intricate fluid dynamics details within the wind tunnel. A comparative analysis of stress projections, supplemented by Root Mean Square Error (RMSE) metric, demonstrates the proposed methodology’s viability. High accuracy is noted in the SVM-based model, as evidenced by its 2.1% RMSE, which surpasses the kNN model's 5.6% RMSE. Notably, the stress distribution calculation took almost 2 hours in ANSYS.In contrast, it required only 10 seconds in SVM and 3 seconds in kNN, showcasing the time-efficient attributes of these models where they solely depend on the trained data. Moreover, the computational efficacy of the SVM and kNN models is highlighted, emphasizing their flexibility in stress analysis. This integrative approach introduces a promising potential in engineering simulations, yielding precise stress distribution forecasts that have the potential to advance aircraft design methodologies and wind tunnel evaluations.","PeriodicalId":507832,"journal":{"name":"Engineering and Technology Journal","volume":"51 5-6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139274780","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