EPI International Journal of Engineering最新文献_第7页

Design and Fabrication of an Automatic Trash Remover for Open Channel Waterway for Micro Hydropower Plant Application 微水电厂明渠航道自动除垃圾机的设计与制造

EPI International Journal of Engineering Pub Date : 2019-08-31 DOI: 10.25042/epi-ije.082019.09

A. Yunus, Musrady Mulyadi, A. Apollo

{"title":"Design and Fabrication of an Automatic Trash Remover for Open Channel Waterway for Micro Hydropower Plant Application","authors":"A. Yunus, Musrady Mulyadi, A. Apollo","doi":"10.25042/epi-ije.082019.09","DOIUrl":"https://doi.org/10.25042/epi-ije.082019.09","url":null,"abstract":"Mitigation of catastrophic impacts of exhausted pollutants from conventional based power plants could be done by extensively used of renewable energy-based power plants. One of the promising renewable-based power plants that already have technology maturity is hydropower. However, large scale hydropower is based on an appropriate site and not economically effective for isolated and remote small communities. As anticipation, to fulfill the power requirements of these communities, micro-hydropower plants (MHPPs) are applied due to its inexpensive capital and low maintenance cost. Normally, MHPPs projects are finalized from civil construction to powerhouse. A simple trash filter is usually located before the intake of the penstock. This simple trash filter usually causes a problem related to trash collection that blocks the water debit into the penstock intake. The low debit, might cause the turbine's rotation will be reduced which in turn downgrade the voltage and frequency. Low voltage and frequency might harm consumers. In this paper, a new control mechanism based on Arduino Mega of automatic trash removed is introduced.","PeriodicalId":387754,"journal":{"name":"EPI International Journal of Engineering","volume":"56 5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126200822","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

Docking Unit Joining Omni Wheel Robot and Mobile Robot 连接全能轮式机器人和移动机器人的对接单元

EPI International Journal of Engineering Pub Date : 2019-08-31 DOI: 10.25042/epi-ije.082019.07

Naoki Igo, Daichi Fujita, Ryoma Hanabusa, Yasuto Nagase, Satoshi Mitsui, T. Satake

引用次数: 0

Mitigation Schemes for Banggae Future Tsunami, West Sulawesi Province, Indonesia Banggae未来海啸缓解计划，西苏拉威西省，印度尼西亚

EPI International Journal of Engineering Pub Date : 2019-08-31 DOI: 10.25042/epi-ije.082019.02

A. Y. Baeda, Nurhidayani Namiruddin

引用次数: 0

Processing of Drone’s Digital Image for Determining Border of Rice Fields with Edge Detection Method 用边缘检测方法处理无人机数字图像确定稻田边界

EPI International Journal of Engineering Pub Date : 2019-08-31 DOI: 10.25042/epi-ije.082019.08

Suhardiman Diman, Z. Zainuddin, S. Manjang

{"title":"Processing of Drone’s Digital Image for Determining Border of Rice Fields with Edge Detection Method","authors":"Suhardiman Diman, Z. Zainuddin, S. Manjang","doi":"10.25042/epi-ije.082019.08","DOIUrl":"https://doi.org/10.25042/epi-ije.082019.08","url":null,"abstract":"Edge detection was the basic thing used in most image processing applications to get information from the image frame as a beginning for extracting the features of the segmentation object that will be detected. Nowadays, many edge detection methods create doubts in choosing the right edge detection method and according to image conditions. Based on the problems, a study was conducted to compare the performance of edge detection using methods of canny, Sobel and laplacian by using object of rice field. The program was created by using the Python programming language on OpenCV. The result of the study on one image test that the Canny method produces thin and smooth edges and did not omit the important information on the image while it has required a lot of computing time. Classification is generally started from the data acquisition process; pre-processing and post-processing. Canny edge detection can detect actual edges with minimum error rates and produce optimal image edges. The threshold value obtained from the Canny method was the best and optimal threshold value for each method. The result of a test by comparing the three methods showed that the Canny edge detection method gives better results in determining the rice field boundary, which was 90% compared to Sobel 87% and laplacian 89%.","PeriodicalId":387754,"journal":{"name":"EPI International Journal of Engineering","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127249849","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

Massive Fire Incidents of Multiple Aboveground Storage Tanks due to Vapor Cloud Explosion 多个地上储罐蒸汽云爆炸引起的大规模火灾事故

EPI International Journal of Engineering Pub Date : 2019-08-31 DOI: 10.25042/epi-ije.082019.03

S. Yoshida

引用次数: 0

Crab Larvae Counter Using Image Processing 利用图像处理技术进行螃蟹幼虫计数

EPI International Journal of Engineering Pub Date : 2019-08-31 DOI: 10.25042/epi-ije.082019.06

Furqan Zakiyabarsi, M. Niswar, Z. Zainuddin

引用次数: 2

Stability Analysis of Aifa Bridge Abutment in Fafurwar District, Bintuni Bay Regency, West Papua Province 西巴布亚省Bintuni湾县Fafurwar区Aifa桥台稳定性分析

EPI International Journal of Engineering Pub Date : 2019-08-31 DOI: 10.25042/epi-ije.082019.12

M. Yunus, Z. F. Syahdinar

{"title":"Stability Analysis of Aifa Bridge Abutment in Fafurwar District, Bintuni Bay Regency, West Papua Province","authors":"M. Yunus, Z. F. Syahdinar","doi":"10.25042/epi-ije.082019.12","DOIUrl":"https://doi.org/10.25042/epi-ije.082019.12","url":null,"abstract":"In the construction of public works infrastructure, especially road infrastructure works, bridge construction work plays a very important role besides the construction of the road itself. One of the things that deserves the attention of the planners in designing a bridge structure is the design of the substructure, this is because the substructure determines the quality and service life of a bridge. In addition, at present many cases of bridge structure failures are caused by failures of the substructure in holding the load acting on the bridge. The aim of this study was to determine the stability of the abutment to sliding failure and the stability of the abutment to overturning failure on the construction of the Aifa bridge in the Bintuni Bay Regency. From the results of the calculation of the stability of the abutments to sliding failure, when the abutments are in normal conditions was obtained safety factor (SF) values 1,907, in condition of the upper structure load is not working was obtained safety factor (SF) values 1,045 and during earthquake conditions was obtained safety factor (SF) values 1,419. While the results of the calculation of the stability of the abutments to overturning failure, when the abutments are in normal conditions was obtained safety factor (SF) values 4,640, in condition of the the upper structure load is not working was obtained safety factor (SF) values 1,658 and during earthquake conditions was obtained safety factor (SF) values 3,159. Because obtained safety factor (SF) values greater than 1, so that the stability of the abutment is safe to sliding failure and overturning failure.","PeriodicalId":387754,"journal":{"name":"EPI International Journal of Engineering","volume":"126 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128606090","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

Harmonic Response Analysis of Strut Fin on Planar Motion Mechanism 平面运动机构支板的谐波响应分析

EPI International Journal of Engineering Pub Date : 2019-06-27 DOI: 10.25042/EPI-IJE.022019.14

Kusnindar Priohutomo, Danang Ariyanto

引用次数: 0

Heave and Pitch Motion Performances of a Ship Towing System Incorporated with Symmetrical Bridle Towline Model 基于对称缰绳模型的船舶拖曳系统的升沉和俯仰运动特性

EPI International Journal of Engineering Pub Date : 2019-06-27 DOI: 10.25042/EPI-IJE.022019.06

A. Fitriadhy, N. A. Aldin, N. A. Mansor, Nur Aqilah Hanis Zalizan

{"title":"Heave and Pitch Motion Performances of a Ship Towing System Incorporated with Symmetrical Bridle Towline Model","authors":"A. Fitriadhy, N. A. Aldin, N. A. Mansor, Nur Aqilah Hanis Zalizan","doi":"10.25042/EPI-IJE.022019.06","DOIUrl":"https://doi.org/10.25042/EPI-IJE.022019.06","url":null,"abstract":"An investigation on vertical motion characteristics of a ship towing system incorporated with symmetrical bridle towline configuration set a real challenge for the naval architect engineer. This paper presents a Computational Fluid Dynamic (CFD) approach to analyse heave and pitch motion performances in waves. Several towing parameters such as various towline length and towing’s velocity have been taken into account. Here, 1B (barge) is employed in the simulation; and designated as a towed ship. The results revealed that the subsequent increase of the towline lengths has been basically proportional with the increase of her heave motion; while inversely decrease in pitch motions. In addition, the effect of the extending towline length = 1.0 to 3.0 resulted in insignificant effect to the towline tension. However, the increase of the towing’s velocity from 0.509 m/s to 0.728 m/s has led to significantly increase her heave motion and the towline tension by 40.46% and 24%, respectively; meanwhile, the pitch motion barge has sufficiently decreased by 35.94%. This simulation has been beneficial for the towing operator to ensure a higher level of the safety navigation of ship towing system.","PeriodicalId":387754,"journal":{"name":"EPI International Journal of Engineering","volume":"100 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132128068","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

Characteristic of Current Diffusion on Double-Plate Conductor for Smaller Resistive Load 小阻性负载下双极板导体电流扩散特性研究

EPI International Journal of Engineering Pub Date : 2019-06-27 DOI: 10.25042/EPI-IJE.022019.10

A. Yunus, A. Apollo, M. Djalal, A. Abu‐Siada

{"title":"Characteristic of Current Diffusion on Double-Plate Conductor for Smaller Resistive Load","authors":"A. Yunus, A. Apollo, M. Djalal, A. Abu‐Siada","doi":"10.25042/EPI-IJE.022019.10","DOIUrl":"https://doi.org/10.25042/EPI-IJE.022019.10","url":null,"abstract":"Power transmission line is one of the pivotal parts of a power system. It connects power generation house with the consumer even in the long distances. Research on current diffusion on the conductor is inevitable to maximize the power dispatch on transmission line. The main purpose of this study is to recognize the behaviors and characteristics of current diffusion in double-plates conductor for further development in the future. The research outcomes would be very useful, particularly in the transmission line study. In this paper, study will be focused on the characteristic of current diffusion in conductor due to its variation impedance value of load particularly when resistive load is smaller than the conductor impedance (Zo). This research is conducted by experimental test and carried out through extensive simulation using MATLAB and Visual Basic Program in MS. Excel. Poynting theory is employed as a validation approach. The simulation and experiment results show that if RL is smaller than the line impedance Zo, deficiency current establish will occur where the electromagnetic energy is not sufficient for the load.","PeriodicalId":387754,"journal":{"name":"EPI International Journal of Engineering","volume":"140 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116449849","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