2019 International Conference on Electrical, Computer and Communication Engineering (ECCE)最新文献

Effect of Cd1−xZnxS Window Layer Incorporation in CdTe Solar Cell by Numerical Simulation Cd1−xZnxS窗口层掺入对CdTe太阳能电池性能的影响

2019 International Conference on Electrical, Computer and Communication Engineering (ECCE) Pub Date : 2019-04-01 DOI: 10.1109/ECACE.2019.8679444

N. K. Das, A. K. Sengupta, Mrinmoy Dey, K. S. Rahman, M. Matin, N. Amin

{"title":"Effect of Cd1−xZnxS Window Layer Incorporation in CdTe Solar Cell by Numerical Simulation","authors":"N. K. Das, A. K. Sengupta, Mrinmoy Dey, K. S. Rahman, M. Matin, N. Amin","doi":"10.1109/ECACE.2019.8679444","DOIUrl":"https://doi.org/10.1109/ECACE.2019.8679444","url":null,"abstract":"CdTe is a very potential binary semiconductor material for solar photovoltaic application due to its superior optoelectronic properties. The overall performances of incorporating $mathbf{Cd}_{pmb{1}-mathbf{X}}mathbf{Zn}_{mathbf{x}}mathbf{S}$ window layer in lieu of CdS layer in CdTe solar cell were investigated by SCAPS-1D simulator. The $mathbf{Cd}_{pmb{1}-mathbf{X}}mathbf{Zn}_{mathbf{x}}mathbf{S}$ is an alloy of CdS and ZnS which increase band gap of window layer from 2.42 e V to 3.7 e V as a function of x (from $pmb{x=0}$ to 1). The spectral response of the design $mathbf{Cd}_{pmb{1}-mathbf{x}}mathbf{Zn}_{mathbf{x}}mathbf{S}/mathbf{CdTe}$ cell improves in blue region which implies the big improvement of short-circuit current density $pmb{J_{sc}}$. In addition, in the traditional back contact of CdTe cell a small positive conduction band $(pmb{Delta Ec} < pmb{0.3} mathbf{eV})$ offset is necessary to reduce the forward current $pmb{J_{0}}$ as well as the recombination losses in the back contact interface. To achieve this goal a highly doped $mathbf{ZnTe}$: Cu extra layer was used as an electron reflector (ER) above back contact. Furthermore, this ER interface allows electron tunnelling by reducing the barrier height of the valence band which in turn leads to an improvement of open-circuit voltage and fill factor. The performance of the proposed cell was examined by varying thickness and doping concentration of Transparent Conducting Oxide (TCO) layer, window layer, absorber layer and finally ER layer. The simulated results of the proposed cell had shown that the open-circuit voltage $pmb{(V_{oc})}$ overcame the 1-volt barrier of CdTe cell with energy conversion efficiencies of 19.93 %.","PeriodicalId":226060,"journal":{"name":"2019 International Conference on Electrical, Computer and Communication Engineering (ECCE)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128902459","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

Electric Power Generation-Mix for Bangladesh and Its Future 孟加拉国的发电结构及其未来

2019 International Conference on Electrical, Computer and Communication Engineering (ECCE) Pub Date : 2019-02-01 DOI: 10.1109/ECACE.2019.8679245

Anik Nath, Suiov Barua, N. Mohammad

引用次数: 14

Convolutional Neural Networks based multi-object recognition from a RGB image 基于卷积神经网络的RGB图像多目标识别

2019 International Conference on Electrical, Computer and Communication Engineering (ECCE) Pub Date : 2019-02-01 DOI: 10.1109/ECACE.2019.8679409

Md. Ashfakur Rahman, Subhra Paul, Mrinmoy Das, M. M. Hossain, Rejwana Haque, Md.Atiqur Rahman

{"title":"Convolutional Neural Networks based multi-object recognition from a RGB image","authors":"Md. Ashfakur Rahman, Subhra Paul, Mrinmoy Das, M. M. Hossain, Rejwana Haque, Md.Atiqur Rahman","doi":"10.1109/ECACE.2019.8679409","DOIUrl":"https://doi.org/10.1109/ECACE.2019.8679409","url":null,"abstract":"With the flow of time, the application of different kinds of intelligent systems in many sectors like security, medical operations, detecting critical diseases, space researches, industrial heavy works, automated vehicles, and many others are increasing all over the of the world, and an intelligent system works by the use of its ability of image recognition. Furthermore, image recognition has been a notable subject in the scope of digital systems in most of the works we do today. Moreover, high-dimensional data from the physical world is obtained in order to produce statistical or representative knowledge by image recognition. In this study, a mutated image recognition technique has been recommended. For the work, different objects from different images were recognized by using a trained convolutional neural network and also the accuracy of the convolutional neural network was measured to examine the performance of the system. The evaluation of the accuracy of image recognition is the main continuation of this work which was done by modifying the system of updating weights in back-propagation. We used small filters of convolution in our work. We tried in this work to demonstrate that by modifying the weight updating system a vital advancement can be reached for greater efficiency in image recognition and applying it the convolutional neural network. Inception-v3, which is trained for the ImageNet Large Visual Recognition Challenge was used in our work and we found our results to be better. It was also pointed that the correctness of the outcomes from our designed system is far better than the state-of-art standards.","PeriodicalId":226060,"journal":{"name":"2019 International Conference on Electrical, Computer and Communication Engineering (ECCE)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126103109","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

Design and Actualize the Bengali Consonant with Appropriate Appearances in the Segmented Display System 设计并实现了分段显示系统中外观合适的孟加拉辅音

2019 International Conference on Electrical, Computer and Communication Engineering (ECCE) Pub Date : 2019-02-01 DOI: 10.1109/ECACE.2019.8679110

M. N. Islam, Md. Akramul Hoque Sumon, Rabiul Hasan Tarek, Saif Hannan

引用次数: 0

Analysis of the Impact of Electric Vehicle Charging Station on Power Quality Issues 电动汽车充电站对电能质量问题的影响分析

2019 International Conference on Electrical, Computer and Communication Engineering (ECCE) Pub Date : 2019-02-01 DOI: 10.1109/ECACE.2019.8679164

A. K. Karmaker, Sujit Roy, Md. Raiu Ahmed

引用次数: 58

Optimization of Lead Sulfide (PbS) Solar Cell 硫化铅(PbS)太阳能电池的优化

2019 International Conference on Electrical, Computer and Communication Engineering (ECCE) Pub Date : 2019-02-01 DOI: 10.1109/ECACE.2019.8679170

Mrinmoy Dey, Md.Tawfiq Omar, A. K. Das, Maitry Dey, N. K. Das

引用次数: 1

[Copyright notice] (版权)

2019 International Conference on Electrical, Computer and Communication Engineering (ECCE) Pub Date : 2019-02-01 DOI: 10.1109/ecace.2019.8679383

引用次数: 0

GSM Based Low-cost Gas Leakage, Explosion and Fire Alert System with Advanced Security 基于GSM的低成本燃气泄漏、爆炸和火灾报警系统，具有先进的安全性

2019 International Conference on Electrical, Computer and Communication Engineering (ECCE) Pub Date : 2019-02-01 DOI: 10.1109/ECACE.2019.8679411

Pritam Ghosh, P. Dhar

{"title":"GSM Based Low-cost Gas Leakage, Explosion and Fire Alert System with Advanced Security","authors":"Pritam Ghosh, P. Dhar","doi":"10.1109/ECACE.2019.8679411","DOIUrl":"https://doi.org/10.1109/ECACE.2019.8679411","url":null,"abstract":"Gas leakage and gas cylinder explosion is a regular problem in today's world, especially in developing countries. If the gas leakage can't be detected fast and no action is taken, may lead to explosion and cause severe damages to life and environment. The previous leakage detection systems only use alarms for warning. There is nothing about the protection. In this paper, a system is proposed that can detect not only gas leakage, it can detect explosion, and fire as well. And can take some protective steps. It is equipped with gas sensor to detect the leaked gas and flame sensor to detect the explosion and fire. It has exhaust fan system to clear the leaked gas and solenoid valve to inlet the water or carbon dioxide gas (CO2) if explosion and fire occurs. The explosion security system response individually when there is only a fire with no relation to gas leakage. If any incident occurs, that information is sent to owner through wireless media, a display shows the alert message and buzzer makes the alarm. It is equipped with Global System for Mobile communications (GSM) modem as wireless media to send information to owner through Short Message Service (SMS). This ensures preventive actions immediately even in the absence of people on-site. A prototype of this system has been developed and tested with Liquefied Petroleum Gas (LPG) and Fire as well. The experimental results show that the system can detect the gas leakage, explosion and fire. It is also able to take protective steps quickly. This life saving system is low-cost and useful. It can protect people from burning alive.","PeriodicalId":226060,"journal":{"name":"2019 International Conference on Electrical, Computer and Communication Engineering (ECCE)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122842030","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: 20

Highly Nonlinear Dispersion Compensating Octagonal Photonic Crystal Fiber: Design and Analysis 高度非线性色散补偿八角形光子晶体光纤的设计与分析

2019 International Conference on Electrical, Computer and Communication Engineering (ECCE) Pub Date : 2019-02-01 DOI: 10.1109/ECACE.2019.8679349

S. Biswas, Tasnim Ahmed, S. Islam, M. R. Islam, Mohammad Mahmudul Alam Mia, Md Ferdous Wahid

引用次数: 3

Image Compression with Reversible Image Watermarking Scheme Based on Non-subsampled Contourlet Transform and Singular Value Decomposition 基于非下采样Contourlet变换和奇异值分解的可逆图像水印图像压缩

2019 International Conference on Electrical, Computer and Communication Engineering (ECCE) Pub Date : 2019-02-01 DOI: 10.1109/ECACE.2019.8679146

Hasniuj Zahan, Md. Foisal Hossain

{"title":"Image Compression with Reversible Image Watermarking Scheme Based on Non-subsampled Contourlet Transform and Singular Value Decomposition","authors":"Hasniuj Zahan, Md. Foisal Hossain","doi":"10.1109/ECACE.2019.8679146","DOIUrl":"https://doi.org/10.1109/ECACE.2019.8679146","url":null,"abstract":"Image compression is preferred for less storage space, sending image on the internet and often for medical imaging in health industry, technical drawings or comics. Because of wide popularity of sharing media in internet, compression plays a major role in the watermarking algorithm. This paper presents a compression technique through image watermarking algorithm based on Non-subsampled Contourlet Transform (NSCT) and Singular Value Decomposition (SVD). NSCT and SVD both are explored for image watermarking. For image compression, only Singular Value Decomposition is used. The NSCT can give more accurate coefficients of the edges and contours in image which is shift invariant. After getting the coefficients from NSCT decomposition SVD is applied to break the matrix in a convenient way so that image compression can be done without losing meaningful data. The compressed singular values of NSCT decomposed coefficients of cover image are added with the compressed singular values of NSCT decomposed coefficient of gray key image. This helps to improve the performance of the compression using watermarking method. In terms of PSNR and compression ratio, the performance of this scheme is analyzed. The proposed algorithm is robust and suitable for copyright protection and data transmission against compression applications.","PeriodicalId":226060,"journal":{"name":"2019 International Conference on Electrical, Computer and Communication Engineering (ECCE)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129603528","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