Engineering Review最新文献_第4页

Sensitivity optimization method for 4th order CBQ structure LP filter 四阶CBQ结构LP滤波器灵敏度优化方法

IF 0.4

Engineering Review Pub Date : 2022-01-01 DOI: 10.30765/er.1779

E. Živić, N. Stojković, S. Sladic

引用次数: 0

An accurate partial shading detection and global maximum power point tracking technique based on image processing 一种基于图像处理的精确局部阴影检测和全局最大功率点跟踪技术

IF 0.4

Engineering Review Pub Date : 2022-01-01 DOI: 10.30765/er.1636

A. Ryad, A. Atallah, A. Zekry

引用次数: 0

E-puck motion control using multi-objective particle swarm optimization 基于多目标粒子群优化的电子冰球运动控制

IF 0.4

Engineering Review Pub Date : 2022-01-01 DOI: 10.30765/er.1647

V. Panwar, A. Pandey, M. E. Hasan

{"title":"E-puck motion control using multi-objective particle swarm optimization","authors":"V. Panwar, A. Pandey, M. E. Hasan","doi":"10.30765/er.1647","DOIUrl":"https://doi.org/10.30765/er.1647","url":null,"abstract":"This article describes the velocity-based motion and orientation control method for a differential-driven two-wheeled E-puck Robot (DDER) using the Multi-Objective Particle Swarm Optimization (MPSO) algorithm in the Virtual Robot Experimentation Platform (V-REP) software environment. The wheel velocities data and Infra-Red (IR) sensors reading make the multi-objective fitness functions for MPSO. We use front, left, and right IR sensors reading and right wheel velocity data to design the first fitness function for MPSO. Similarly, the front, left, and right IR sensors reading, and left wheel velocity data have been taken for making the second fitness function for MPSO. The multi-objective fitness functions of MPSO minimize the motion and orientation of the DDER during navigation. Due to the minimization of motion and orientation, the DDER covers less distance to reach the goal and takes less time. The Two-Dimensional (2D) and Three-Dimensional (3D) navigation results of the DDER among the scattered obstacles have been presented in the V-REP software environment. The comparative analysis with previously developed Invasive Weed Optimization (IWO) algorithm has also been performed to show the effectiveness and efficiency of the proposed MPSO algorithm.","PeriodicalId":44022,"journal":{"name":"Engineering Review","volume":"1 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69597943","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

Effects of using pulverized termite mound (PTM) as partial replacement of fine aggregate on the durability properties and microstructure of concrete 白蚁丘粉部分替代细骨料对混凝土耐久性和微观结构的影响

IF 0.4

Engineering Review Pub Date : 2022-01-01 DOI: 10.30765/er.1665

C. Fapohunda, Oluwatosin E. Oladipupo, Luke B. Ajayi

{"title":"Effects of using pulverized termite mound (PTM) as partial replacement of fine aggregate on the durability properties and microstructure of concrete","authors":"C. Fapohunda, Oluwatosin E. Oladipupo, Luke B. Ajayi","doi":"10.30765/er.1665","DOIUrl":"https://doi.org/10.30765/er.1665","url":null,"abstract":"The unrestrained use of non-renewable natural resources used in the production of structural concrete raises sustainability concerns. The use of appropriate waste and non-conventional materials is encouraged to address some of these concerns. Understanding the relationship between the durability properties and microstructure of such a material will increase innovation in its use and mitigate some of the environmental issues associated with concrete production. This paper presents the results of a study conducted to evaluate the durability and investigate the microstructure of concrete with fine aggregate partially replaced by pulverized termite mound (PTM). Durability was evaluated by sorptivity and water absorption coefficient tests. Scanning electron microscopy (SEM) was used to study the microstructure of the concrete specimens after 28 days of curing. The results show (i) that the durability of the PTM concrete specimens, as measured by the water absorption coefficient, improves progressively with PTM content, (ii) that the durability of the PTM specimens, as evaluated by sorptivity, improves up to a PTM content of 70%, and (iii) that the microstructure of the concrete specimens has smaller pores compared to the control, which follows the trend of the sorptivity results. Therefore, for practical purposes, the use of PTM mounds as a substitute for fine aggregate in the production of structural concrete should be limited to 70 %.","PeriodicalId":44022,"journal":{"name":"Engineering Review","volume":"1 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69597999","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

Numerical simulation of flow pattern at a divergent pier in a bend with different relative curvature radii using ansys fluent 利用ansys fluent对不同相对曲率半径弯道中发散墩流态进行数值模拟

IF 0.4

Engineering Review Pub Date : 2022-01-01 DOI: 10.30765/er.1894

Kooshyar Lahsaei, M. Vaghefi, Farid Sedighi, C. A. Chooplou

{"title":"Numerical simulation of flow pattern at a divergent pier in a bend with different relative curvature radii using ansys fluent","authors":"Kooshyar Lahsaei, M. Vaghefi, Farid Sedighi, C. A. Chooplou","doi":"10.30765/er.1894","DOIUrl":"https://doi.org/10.30765/er.1894","url":null,"abstract":"In this work, the three-dimensional flow around piers in river meanders under rigid bed conditions was modeled. The software ANSYS FLUENT was used to perform the simulation. The study was carried out in a 180° curve accompanied by cylindrical piers with a diameter of 5 cm and a slope angle of 21° under rigid bed conditions. The results of the comparisons showed that this model can help simulate the flow pattern around inclined bridge piers in bended channels with acceptable accuracy. To analyze the flow pattern, the work was followed by studying the effect of the parameters that affect the physics of the problem: the relative radius of curvature of the curve, the location of the piers within the 180° curve, and the arrangement of the piers relative to the flow direction. The results showed that increasing the relative radius of curvature as well as the range of the bend reduced the tangential velocity values; the minimum tangential velocity value occurred at a relative radius of curvature of 5. With the pier group installed in the direction of flow, the maximum secondary flow power occurred at the 60° position at about 18.8%, while with the pier group installed across the flow, the maximum secondary flow power occurred at the 120° position at 14.2%. A comparison of the vorticity at the perpendicular and downstream positions showed that the vorticity values at the 60° and 120° positions were greater than the corresponding values at the 90° position in both cases.","PeriodicalId":44022,"journal":{"name":"Engineering Review","volume":"1 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69598355","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: 1

Design and simulation of a mobile robot platform for navigation and obstacle detection 移动机器人导航与障碍物检测平台的设计与仿真

IF 0.4

Engineering Review Pub Date : 2022-01-01 DOI: 10.30765/er.1644

J. Azeta, C. Bolu, F. Oyawale

引用次数: 0

Effect of powder concentration on the EDM performance of AISI 304 using cryotreated post tempered electrodes 粉末浓度对AISI 304低温后回火电极电火花加工性能的影响

IF 0.4

Engineering Review Pub Date : 2022-01-01 DOI: 10.30765/er.1655

Munmun Bhaumik, K. Maity

{"title":"Effect of powder concentration on the EDM performance of AISI 304 using cryotreated post tempered electrodes","authors":"Munmun Bhaumik, K. Maity","doi":"10.30765/er.1655","DOIUrl":"https://doi.org/10.30765/er.1655","url":null,"abstract":"Powder mixed electro discharge machining (PMEDM) is a hybrid machining process in which dielectric fluid is mixed with electrically conductive powder particles for enhancing surface quality and material removal rate. Cryogenic treatment was brought in this process to improve tool life and cutting tool properties. In this research, silicon carbide (SiC) powder mixed electro discharge machining (EDM) has been performed for AISI 304 machining. Experiments have been carried out to study the effect of powder concentrations (0 g/l, 4 g/l, 6 g/l, 8 g/l and 10 g/l) on the EDM performances viz. radial overcut (ROC), material removal rate (MRR), surface roughness (Ra) and tool wear rate (TWR) using three tungsten carbide electrodes (i.e. untreated, cryotreated single and double tempered). With addition of powder concentration material removal rate, radial overcut enhances and surface roughness and tool wear rate reduces. With the addition of powder concentration MRR, TWR, Ra and ROC decreased up to 10.60%, 37.08%, 15.95% and 9.31% for cryotreated single tempered electrode and decreased up to 16.64%, 42.10%, 26.58% and 12.19% for cryotreated double tempered electrode respectively. Microstructural analysis of machined surface has been carried out for the PMEDMed surfaces.","PeriodicalId":44022,"journal":{"name":"Engineering Review","volume":"122 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69597991","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

Comprehensive review on spectrum sensing techniques in cognitive radio 认知无线电频谱感知技术综述

IF 0.4

Engineering Review Pub Date : 2022-01-01 DOI: 10.30765/er.1677

N. Chaudhary, R. Mahajan

引用次数: 3

Headroom-based optimization for placement of distributed generation in a distribution substation 基于净空空间的配电变电所分布式发电布局优化

IF 0.4

Engineering Review Pub Date : 2022-01-01 DOI: 10.30765/er.1748

John N. Nweke, Ayodeji Olalekan Salau, C. Eya

{"title":"Headroom-based optimization for placement of distributed generation in a distribution substation","authors":"John N. Nweke, Ayodeji Olalekan Salau, C. Eya","doi":"10.30765/er.1748","DOIUrl":"https://doi.org/10.30765/er.1748","url":null,"abstract":"This paper presents a headroom-based optimization for the placement of distributed generation (DG) in a distribution substation. The penetration limits of DGs into the existing distribution substations are often expressed as a function of the feeder’s hosting capacity (headroom). Therefore, it is important to estimate the reliability of the network's operation as well as that of the limits imposed by the power quality standards by evaluating of the hosting capacity (headroom) of the existing distribution feeder substation. This study aims at developing a novel algorithm for positioning a bus with permissible headroom capacity for DG positioning without causing voltage violations but maximizing the active power supply. Since DG increases short-circuit faults, the algorithm is useful for utility companies to select feeder substations that have permissible headroom capacity for DG installation and thus, contributing to reducing high DG penetration in the network. The modeling and optimization were carried out the Power System Software for Engineers (PSS/E) environment using the IEEE 14-bus test system. The results obtained from the case study show that only two (2) feeder substations out of fourteen (14) have the permissible headroom capacity for DG connections.","PeriodicalId":44022,"journal":{"name":"Engineering Review","volume":"1 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69598191","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

Investigation of cutting time and tool wear rate on EN-24 steel alloy by the drilling process 钻削加工EN-24钢合金切削时间和刀具磨损率的研究

IF 0.4

Engineering Review Pub Date : 2022-01-01 DOI: 10.30765/er.1611

Yogesh Jangid, A. Goyal, M. Dadhich

引用次数: 0