2019 4th Scientific International Conference Najaf (SICN)最新文献_第2页

Identification of Digitally Modulated Signals-Status and Challenges 数字调制信号的识别——现状与挑战

2019 4th Scientific International Conference Najaf (SICN) Pub Date : 2019-04-01 DOI: 10.1109/SICN47020.2019.9019343

S. Sadkhan, S. F. Jawad

引用次数: 3

Enhancement of heat transfer around a triangular cylinder by using single winglet 用单小翼增强三角形圆柱体的传热

2019 4th Scientific International Conference Najaf (SICN) Pub Date : 2019-04-01 DOI: 10.1109/SICN47020.2019.9019359

A. Yousif, M. R. Khudhair

引用次数: 0

Improve CFAR Algorithm Based on Closed Loop by Neural Network 基于闭环的神经网络改进CFAR算法

2019 4th Scientific International Conference Najaf (SICN) Pub Date : 2019-04-01 DOI: 10.1109/SICN47020.2019.9019376

Ghufran M. Hatem, J. A. Abdul Sadah, Jabar Salman, Thamir R. Saeed

{"title":"Improve CFAR Algorithm Based on Closed Loop by Neural Network","authors":"Ghufran M. Hatem, J. A. Abdul Sadah, Jabar Salman, Thamir R. Saeed","doi":"10.1109/SICN47020.2019.9019376","DOIUrl":"https://doi.org/10.1109/SICN47020.2019.9019376","url":null,"abstract":"In the Constant False Alarm Rate (CFAR) processor, several algorithms can be used to decide the target in the Cell under Test (CUT) in the detection process stage at the receiver side. Since all these algorithms are considered an open loop processor, continually their performance accuracy with environmental changes cannot be guaranteed. This paper presents a Closed Loop CFAR (CL-CFAR) processor, as a proposed new CFAR, to guarantee the continuity of their performance. A shift register is used to save the decision of each cell after threshold CUT as a pattern, then a neural network (NN) back propagation is used to recognize this pattern, which represents the state of the lagging window. After that, the output of the NN is back to the return signal classifier, which is responsible for selecting the optimal CFAR, which is used. Where the proposed closed loop CFAR is used for switching between certain CFAR algorithms, the switching is based on the changing the field environment. The results show over perform of the closed loop compared with conventional algorithms. It showed for a single target the probability of detection PD is 90–97% with Pfa from 10-4 to 10-8 by using the selected CA-CFAR. Further, for Multi-target 100% with the same Pfa using selected OSGO-CFAR and for a closed multi-target, the PD is 94–100% with the same Pfa with selected OSSO-CFAR, also for clutter edge situation the PD is 94–98% with the same Pfa with selected OSSO-CFAR. The probability of detection of the proposed closed loop-CFAR is 96% in different and changeable environments.","PeriodicalId":179575,"journal":{"name":"2019 4th Scientific International Conference Najaf (SICN)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116660375","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

Performance of Maximum Distance on-demand Routing Protocol based on Random Variable Velocity 基于随机变速的最大距离按需路由协议性能研究

2019 4th Scientific International Conference Najaf (SICN) Pub Date : 2019-04-01 DOI: 10.1109/SICN47020.2019.9019381

A. G. Wadday, Dania Mohammed

{"title":"Performance of Maximum Distance on-demand Routing Protocol based on Random Variable Velocity","authors":"A. G. Wadday, Dania Mohammed","doi":"10.1109/SICN47020.2019.9019381","DOIUrl":"https://doi.org/10.1109/SICN47020.2019.9019381","url":null,"abstract":"The application of a Vehicular Ad-Hoc Network at intersections is of great importance in the world, but the great challenge that this network is facing is the changing topology. To solve this problem, several routing protocols have been proposed to guide packets between vehicles until the changing topology is overcome. One of the most important types of protocols is site-based protocol. One of the most important features of this protocol maximum distance on-demand routing algorithm is that it chooses the best path and maximum distance in the direction of the destination vehicle with the least number of hops in order to ensure the transfer of all packages to the destination vehicle and reduce overhead and delays, This work is different from some previous work by making the speed of vehicles varies between (40–120 km/h) and showing the results in terms of end to end delay, communication overhead, packet delivery ratio. Another case has been forced to change the contract locations randomly and show the results E2E delay, packet delivery ratio, communication overhead. Finally, we compare the results of the protocol MDORA for fixed and variable velocity vehicles in terms of the number of dropped packets.","PeriodicalId":179575,"journal":{"name":"2019 4th Scientific International Conference Najaf (SICN)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123964608","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

Performance evaluation thermal efficiency for the parabolic collector with two types of absorber 两种吸收体抛物面集热器热效率的性能评价

2019 4th Scientific International Conference Najaf (SICN) Pub Date : 2019-04-01 DOI: 10.1109/SICN47020.2019.9019339

Mohammed R. Al qasaab, Qahtan A. Abed, Wisam A. Abd al-wahid

{"title":"Performance evaluation thermal efficiency for the parabolic collector with two types of absorber","authors":"Mohammed R. Al qasaab, Qahtan A. Abed, Wisam A. Abd al-wahid","doi":"10.1109/SICN47020.2019.9019339","DOIUrl":"https://doi.org/10.1109/SICN47020.2019.9019339","url":null,"abstract":"In recent years, many research studies focused on enhancing and improving the cost of the solar water heating system. This paper focuses on the development of the thermal efficiency of the solar parabolic dish collector (PDC) with different types of the absorber. A spiral coil and helical conical coil receivers in a PDC system are studied experimentally. The experimental system consists of a solar parabolic dish 1.5m diameter, spiral coil, helical conical coil, and solar tracking system. The concentrated solar radiation amounting the receiver heats the working fluid (water) flows through this tube (coil spiral or helical conical). The preliminary calculations have been accomplished on the typical winter day in Najaf, Iraq (32.1°N /44.19°E). Effect of volumetric flow rates on the useful energy and thermal efficiency of the system has been investigated. They are conducted within 30 L/h and 60 L/h of volumetric flow rates. The experimental results showed that the maximum outlet temperature was obtained from PDC with spiral coil receiver with 30 L/h volumetric flow rate. The PDC with a spiral coil has the potential to supply hot water is about 30.14%, 53.48% more efficient than of a PDC with a helical conical coil at 30 L/h, 60 L/h respectively.","PeriodicalId":179575,"journal":{"name":"2019 4th Scientific International Conference Najaf (SICN)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128494718","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

Modeling and Experimental Research of Vibration N Properties of A Multi-Layer Printed Circuit Board 多层印刷电路板振动特性建模与实验研究

2019 4th Scientific International Conference Najaf (SICN) Pub Date : 2019-04-01 DOI: 10.1109/SICN47020.2019.9019364

Zainab H. Al-Araji, N. Swaikat, A. Muratov, A. V. Turetsky

引用次数: 2

Application HEC-RAS Model to Simulate the Flood Wave Due to Dam Failure 应用HEC-RAS模型模拟溃坝洪波

2019 4th Scientific International Conference Najaf (SICN) Pub Date : 2019-04-01 DOI: 10.1109/SICN47020.2019.9019369

Layla Mohammed, S. Khassaf, K. Al-Murshidi

引用次数: 2

Design and Implement a Proposed Multi-Sources to Multi-Destinations Broadcasting Video-Signals 一种多源多目标广播视频信号的设计与实现

2019 4th Scientific International Conference Najaf (SICN) Pub Date : 2019-04-01 DOI: 10.1109/SICN47020.2019.9019340

Subhi R. M. Zeebaree, Halkawt Rajab

{"title":"Design and Implement a Proposed Multi-Sources to Multi-Destinations Broadcasting Video-Signals","authors":"Subhi R. M. Zeebaree, Halkawt Rajab","doi":"10.1109/SICN47020.2019.9019340","DOIUrl":"https://doi.org/10.1109/SICN47020.2019.9019340","url":null,"abstract":"This paper presents design and implementation of a proposed system for Broadcasting Video-Signals from Multi-Sources to Multi-Destinations using fundamentals of Clients/Server and clustering. The system makes the improved application software to be used friendly with as maximum as possible of flexibility and full optional controlling to get complete features of the video broadcasting systems. The techniques of this software application are designed and implemented by Visual C#.Net language with using Microsoft Framework.Net. This system overcome the problems of delay, overlapping, attenuation, bottleneck of the bandwidth by limit number of resources and destinations, through controlling the permissions and broadcasting, and monitoring the configuration of the system during broadcasting. One of the most important enhancements achieved is via overcoming the problem of synchronization between two sides of the network (server and clients) due to the incoming signals from the cameras to the server and broadcasting these signals to the clients-side. Because of the high-flexibility of the designed software application, this system enables the administrator to monitor the dataflow from server-side to clients-side and apply compressing with many compression techniques on the incoming and broadcasted signals.","PeriodicalId":179575,"journal":{"name":"2019 4th Scientific International Conference Najaf (SICN)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133880606","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: 3

Experimental Study of the Performance of A Flat Plate Solar Water Heater 平板太阳能热水器性能的实验研究

2019 4th Scientific International Conference Najaf (SICN) Pub Date : 2019-04-01 DOI: 10.1109/SICN47020.2019.9019371

D. Al-Shamkhee, Mohammed J Alghurabe, Assad Alsahlani

引用次数: 0

Energy Saving of Air Conditioning System by Oscillating Heat Pipe Heat Recovery Using Binary Fluid 二元流体振荡热管热回收对空调系统节能的影响

2019 4th Scientific International Conference Najaf (SICN) Pub Date : 2019-04-01 DOI: 10.1109/SICN47020.2019.9019354

Anwar S. Barrak, Ahmed A. Saleh, Zainab H. Naji

{"title":"Energy Saving of Air Conditioning System by Oscillating Heat Pipe Heat Recovery Using Binary Fluid","authors":"Anwar S. Barrak, Ahmed A. Saleh, Zainab H. Naji","doi":"10.1109/SICN47020.2019.9019354","DOIUrl":"https://doi.org/10.1109/SICN47020.2019.9019354","url":null,"abstract":"This study aims to investigate the enhancement of thermal performance and energy saving of oscillating heat pipe heat exchanger as a heat recovery device in HVAC system by using water, methanol, and binary fluid (water and methanol (50/50) %). The oscillation heat pipe consisted of 8 rows of 7 turns oscillating heat pipe in the air conditioning system. Also investigated the enhancement of the thermal performance of the heat exchanger and the energy-saving by experience water and methanol pure fluids and binary (water-methanol) fluid. The results showed that the increase of inlet air temperature and air velocity had a positive effect on energy saving ratio and the thermal effectiveness of heat exchanger. Also, the thermal effectiveness of the oscillation heat pipe heat exchanger using water as working fluid had lower values in comparison to the other two kinds of working fluids and can be enhanced by 16%, if the binary fluid used instead of it. Also, the energy-saving ratio values for water could be enhanced by 14 % when the binary fluid was used. For all tests, Methanol was recorded higher values for thermal effectiveness and energy-saving ratio than water by 32% and 18% respectively","PeriodicalId":179575,"journal":{"name":"2019 4th Scientific International Conference Najaf (SICN)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114167331","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