AL Rafdain Engineering Journal最新文献_第10页

Enhanced Hardware Implementation of Hybrid Stochastic Neural Network using FPGA 基于FPGA的混合随机神经网络增强硬件实现

AL Rafdain Engineering Journal Pub Date : 2014-04-28 DOI: 10.33899/RENGJ.2014.87338

R. A. Khalil, M. Salim

{"title":"Enhanced Hardware Implementation of Hybrid Stochastic Neural Network using FPGA","authors":"R. A. Khalil, M. Salim","doi":"10.33899/RENGJ.2014.87338","DOIUrl":"https://doi.org/10.33899/RENGJ.2014.87338","url":null,"abstract":"Most of the traditional digital implemented systems uses fixed point or floating point for representing and processing data. An alternative approach is to represent data as random bits that are distributed along the sequence . To be precise, stochastic logic can be considered as a solution for hardware size for application that consume physical area like neural networks as it uses logic gates to implement complex operations and its inherits resistance to bit flips noise. To avoid some of the problems that this type of processing suffers from, a combination of stochastic logic and classical logic (fixed point) is used to implement a neural networks (Fully connected feed-forwards) that is characterized by FPGA large size consuming. The stochastic logic is utilized have to implement part of the multiplication operations in the hidden layers of network and LFSR is used as a random generator forconversion of weights and activation functions outputs. The hardware utilization of Spartan 3E-500K FPGA results are compared with another network of the same size. A discussion of some of the issues that related to this methodology faces is also presented. Key words: Artificial neural networks, LFSR, Probabilistic computation, Stochastic arithmetic, FPGA, Stochastic logic.","PeriodicalId":339890,"journal":{"name":"AL Rafdain Engineering Journal","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115835477","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

Design and FPGA Implementation of Two-Dimensional Discrete Wavelet Transform Architectures Using Raster-Scan Method 栅格扫描二维离散小波变换体系结构的设计与FPGA实现

AL Rafdain Engineering Journal Pub Date : 2014-04-28 DOI: 10.33899/RENGJ.2014.87323

J. Abdul-Jabbar, Z. Al-Mokhtar

引用次数: 0

Optimization of Power Consumption in Cloud Data Centers Using Green Networking Techniques 利用绿色网络技术优化云数据中心的功耗

AL Rafdain Engineering Journal Pub Date : 2014-04-28 DOI: 10.33899/rengj.2014.87317

Q. Ali, Alnawars Mohammed

{"title":"Optimization of Power Consumption in Cloud Data Centers Using Green Networking Techniques","authors":"Q. Ali, Alnawars Mohammed","doi":"10.33899/rengj.2014.87317","DOIUrl":"https://doi.org/10.33899/rengj.2014.87317","url":null,"abstract":"In this paper, a neuro-based predictor is proposed with a prediction algorithm to estimate the required number of active servers simulating the Green Networking objectives. The inputs of such predictor are the CPU utilization of the servers in the data center and the variations of the incoming demands with the number of users’ variation. During the work, different demand profiles of ClarkNet traffic traces are simulated on OPNET14.5 Modeler to obtain the required training values of servers’ CPU utilization and clients’ throughput. Also, Green Networking objectives are defined to maintain the Power Management Criteria (PMC) which guaranteed that all CPU utilization must be greater than 30%. Taking into account that a maximum number of 100 servers are used in such local data center, an ON/OFF control algorithm is then suggested for the power management of different servers in data center to fulfill the previous Green objectives. The Power saving is finally evaluated since it has been noticed that the power saving percentage can be increased from 17.33% to 85.33% of a total power of 75 k watts when the number of the operating servers is decreased from 80% to 5% of the overall servers.","PeriodicalId":339890,"journal":{"name":"AL Rafdain Engineering Journal","volume":"76 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122827142","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

Architectural Design of Random Number Generators and Their Hardware Implementations 随机数生成器的体系结构设计及其硬件实现

AL Rafdain Engineering Journal Pub Date : 2014-04-28 DOI: 10.33899/rengj.2014.87322

B. S. Mahmood, Sarmad F. Ismael

{"title":"Architectural Design of Random Number Generators and Their Hardware Implementations","authors":"B. S. Mahmood, Sarmad F. Ismael","doi":"10.33899/rengj.2014.87322","DOIUrl":"https://doi.org/10.33899/rengj.2014.87322","url":null,"abstract":"The architectural design of the random number generators for uniform distribution, normal distribution, exponential distribution and Rayleigh distribution using Box-Muller and inverse transformation method has been hardware implemented on FPGA. Any of the random number generators can generate one sample every clock cycle. The generators have been implemented on Xilinx Spartan 3E XC3S500E FPGA. The designed generators work properly up to maximum frequency of 418.41MHz .The outcome results of the generators have been tested by the chi-square test at a 5% level of significance which provided the correct required distributions. Keyword: Box-mulle, Chi-square, Inverse transformation, FPGA. ةيئاوشعلا ماقرلاا ديلوتل ةيرامعم ميمصت ايدام اهذيفنتو ليعامسإ نيدلا رخف دمرس .د دومحم ركش لساب بوساحلا ةسدنه مسق / لصوملا ةعماج تاينورتكللأأ ةسدنه ةيلك صخلملا ا ديلوتل ةممصملا ةيرامعملا و يعيبط عيزوتو مظتنم عيزوتب ةيئاوشعلا ماقرلا عيزوتو يسا عيزوت لا ةقيرط مادختساب ) يليار( ـ ( Box-muller لا مادختساب ايدام اهءانب مت يسكعلا ليوحتلا ةقيرطو ) FPGA . ىلع اهءانب مت تادلوملا .ةرود لك يف دحاو مقر دلوت نا نكمم ةيئاوشعلا ماقرلاا تادلوم نم دحاو يا Xilinx Spartan 3E XC3S500E FPGA . هرادقم ددرتب لمعلل ةبسانم ةممصملا تادلوملا 418.41MHz ىوتسمب ياك عبرم صحف ةطساوب اهرابتخا مت تادلوملا نم اهيلع لوصحلا مت يتلا جئاتنلا ةيمها اهرادقم 5 .بولطملا عيزوتلا تققح يتلاو % Received: 9 – 5 2013 Accepted: 10 – 10 2013 Al-Rafidain Engineering Vol.22 No. 2 March 2014 51","PeriodicalId":339890,"journal":{"name":"AL Rafdain Engineering Journal","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126464151","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: 4

The Attributes of Architectural Form of Traditional House Internal Facades of Mosul's Traditional House as a Case-study 传统住宅的建筑形式属性——以摩苏尔传统住宅内立面为例

AL Rafdain Engineering Journal Pub Date : 2014-04-28 DOI: 10.33899/RENGJ.2014.87312

Talaat I. M. Al-Aane

引用次数: 0

Passing Behavior on Rural Two-Lane Highways 农村双车道高速公路上的通行行为

AL Rafdain Engineering Journal Pub Date : 2014-04-28 DOI: 10.33899/RENGJ.2014.87334

Ayman A. Abdul-Mawjoud, Gandhi G. Sofia

引用次数: 2

Improving The Engineering Properties of The Gypseous Soil Using Dynamic Compaction Method 用强夯法改善石膏土的工程性能

AL Rafdain Engineering Journal Pub Date : 2014-04-28 DOI: 10.33899/RENGJ.2014.87333

M. Al-Layla, Dr.Qutayba Nazar Al-Saffar

{"title":"Improving The Engineering Properties of The Gypseous Soil Using Dynamic Compaction Method","authors":"M. Al-Layla, Dr.Qutayba Nazar Al-Saffar","doi":"10.33899/RENGJ.2014.87333","DOIUrl":"https://doi.org/10.33899/RENGJ.2014.87333","url":null,"abstract":"The aim of this study is to improve the engineering properties of gypseous soils, located in Bajii city (160 km South of Mosul city) using the Field Dynamic Compaction (FDC) techniques. This technique consist of dropping a reinforced concrete block (1x1x1 m) weighing (2.4 Tons) from different heights on a gypseous soil of thickness varaing from (0.5-2.4 m) and underlain by sub-base material. The effect of FDC on the gypseous soil was investigated using SPT in the field and using the conventional laboratory apparatus in the laboratory tests. The results showed that the unit weight increased (14-32%) for one drop of the weight. The effective angle of internal friction (ϕˉ ) increased from (32 o ) to about (36 o ) while the compression index (Cc) decreased from (0.24) to about (0.07-0.1). The results of this study indicated that about (60-80 %) of the improvement was achieved from the first blow in loose to meduime soils. However about (25 %) of the improvement was reached in dense soils. The FDC is a promising technique for improving the engineering properties of gypseous soil and overcome most of the gypseous soil problems. Key words: Dynamic compaction , Gypseous soil, Soil Improving and SPT-Test","PeriodicalId":339890,"journal":{"name":"AL Rafdain Engineering Journal","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121855752","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

Enhancement of Distance Relay Performance in Transmission Line Compensated by Series Capacitor Protected by MOV MOV保护串联电容补偿提高传输线距离继电器性能

AL Rafdain Engineering Journal Pub Date : 2014-04-28 DOI: 10.33899/RENGJ.2014.87319

M. F. Al-kababjie, Nuaimy, Dhafer. A . Al, Nuaimy Dhafer. A . Al

引用次数: 0

Finite Element Analysis of Draw Beads in Deep Drawing Processes 拉深过程中拉延珠的有限元分析

AL Rafdain Engineering Journal Pub Date : 2014-02-28 DOI: 10.33899/rengj.2014.87017

M. Jaber, Azal Refa, Alaa Dahham

引用次数: 1

WiMAX Mesh Topology with Modified Fair Centralized Scheduling and Routing Algorithms Based on Testing Feature of Down-Node Group 基于下节点组测试特性的改进公平集中调度和路由算法的WiMAX网状拓扑

AL Rafdain Engineering Journal Pub Date : 2014-02-28 DOI: 10.33899/rengj.2014.86994

Abdul Jabbar, Z. Farej, Dr. A. I. A. Jabbar

{"title":"WiMAX Mesh Topology with Modified Fair Centralized Scheduling and Routing Algorithms Based on Testing Feature of Down-Node Group","authors":"Abdul Jabbar, Z. Farej, Dr. A. I. A. Jabbar","doi":"10.33899/rengj.2014.86994","DOIUrl":"https://doi.org/10.33899/rengj.2014.86994","url":null,"abstract":"Multiple access interferences are the major limiting factors for the performance of multihop WiMAX based Mesh Network (WMN). The routing algorithms play an important role in reducing such interferences among the nodes of the WMN. In this paper a new Routing Tree Construction Algorithm (RTCA) which is based on Balancing the data and Parallelizing the routes of the data from nodes to BS is proposed and called BalancedParalleled RTCA (Bala-Para-RTCA). This algorithm has a new Down-Node Group Testing (DNGT) feature. This feature increases the conversion of primary into secondary interferences which (in conjunction with directivity) can be avoided significantly by the Modified Fair Relay Centralized Scheduling (MFRCS) algorithm, as a result concurrent transmissions over a certain slot will be increased. So system performance is enhanced in terms of scheduling length, links concurrency ratio (LCR) and average transmission delay (ATD). Without directivity and relative to the standard Breadth First Tree (BFT) RTCA, the simulation results of the proposed RTCA show concurrency ratio enhancement of 15.38% and 19.4% without and with DNGT respectively.","PeriodicalId":339890,"journal":{"name":"AL Rafdain Engineering Journal","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130141310","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