Since data is a vital resource that must be transferred over the Internet, the security issue of this resource must be considered seriously. There are various methods have been proposed by researchers; some of them have been implemented, such as DES and AES. However, those methods have some limitations that allow the plaintext to be unsaved from any threats while it was transferring over the Internet. Nevertheless, one perfect cipher method called one-time pad (OTP) had been proposed. Unfortunately, it has never been implemented in the real application according to the length of the key and the randomness problem. Thus, this paper proposed a method called the PUGGAD, or the Pad/functional key algorithm for General encrypt/Decrypt, to encrypt all types of plaintexts before sending across the Internet to its destination, both in binary mode and text mode. This method is implemented based on the OTP concept except that all complications of OTP have been pulled over. Additionally, the PUGGAD algorithm is the chain rule protection process where a plaintext must be split into an individual block size before the encryption process starts. Thus, obtaining only some blocks of the ciphertext over the Internet under the PUGGAD protection mechanism, hackers cannot decrypt back to the original plaintext as same as other protection methods.
{"title":"Chain Rule Protection over the Internet Using PUGGAD Algorithm","authors":"V. Suttichaya, P. Bhattarakosol","doi":"10.1109/ICCEE.2008.153","DOIUrl":"https://doi.org/10.1109/ICCEE.2008.153","url":null,"abstract":"Since data is a vital resource that must be transferred over the Internet, the security issue of this resource must be considered seriously. There are various methods have been proposed by researchers; some of them have been implemented, such as DES and AES. However, those methods have some limitations that allow the plaintext to be unsaved from any threats while it was transferring over the Internet. Nevertheless, one perfect cipher method called one-time pad (OTP) had been proposed. Unfortunately, it has never been implemented in the real application according to the length of the key and the randomness problem. Thus, this paper proposed a method called the PUGGAD, or the Pad/functional key algorithm for General encrypt/Decrypt, to encrypt all types of plaintexts before sending across the Internet to its destination, both in binary mode and text mode. This method is implemented based on the OTP concept except that all complications of OTP have been pulled over. Additionally, the PUGGAD algorithm is the chain rule protection process where a plaintext must be split into an individual block size before the encryption process starts. Thus, obtaining only some blocks of the ciphertext over the Internet under the PUGGAD protection mechanism, hackers cannot decrypt back to the original plaintext as same as other protection methods.","PeriodicalId":365473,"journal":{"name":"2008 International Conference on Computer and Electrical Engineering","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121668470","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}
In a content distribution network based on overlay networks, the peer's upload bandwidth is always constrained. To optimize the system performance, one problem is how to assign the upload capacity to the right neighbors for transferring data blocks. In a system using network coding technology, a strategy which is to select the right neighbors based upon the degrees of them is proposed. The selection probability of each neighbor is determined by its degree. After. this strategy is applied, the utilization of network is improved, and the distribution progress is shortened. From the simulation, we found that the performance of content distribution is obviously better than the baseline system on three metrics, including maximum finish time, average finish time and standard deviation.
{"title":"Using Degree-Based Strategy for Network Coding in Content Distribution Network","authors":"Tingyi Li, Jinlin Wang, Jiali You","doi":"10.1109/ICCEE.2008.20","DOIUrl":"https://doi.org/10.1109/ICCEE.2008.20","url":null,"abstract":"In a content distribution network based on overlay networks, the peer's upload bandwidth is always constrained. To optimize the system performance, one problem is how to assign the upload capacity to the right neighbors for transferring data blocks. In a system using network coding technology, a strategy which is to select the right neighbors based upon the degrees of them is proposed. The selection probability of each neighbor is determined by its degree. After. this strategy is applied, the utilization of network is improved, and the distribution progress is shortened. From the simulation, we found that the performance of content distribution is obviously better than the baseline system on three metrics, including maximum finish time, average finish time and standard deviation.","PeriodicalId":365473,"journal":{"name":"2008 International Conference on Computer and Electrical Engineering","volume":"76 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125620641","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}
This paper introduces a kind of novel fuzzy controller for induction heating temperature control. The working principle and the configuration of the control system are analyzed in detail. A complete simulation model of the induction heating system is obtained by MATLAB/SIMULINK software. The results of the simulation are presented and showed the effectiveness and superiority of this temperature control system.
{"title":"Induction Heating Power Supply Temperature Control Based on a Novel Fuzzy Controller","authors":"Yiwang Wang, Fengwen Cao","doi":"10.1109/ICCEE.2008.64","DOIUrl":"https://doi.org/10.1109/ICCEE.2008.64","url":null,"abstract":"This paper introduces a kind of novel fuzzy controller for induction heating temperature control. The working principle and the configuration of the control system are analyzed in detail. A complete simulation model of the induction heating system is obtained by MATLAB/SIMULINK software. The results of the simulation are presented and showed the effectiveness and superiority of this temperature control system.","PeriodicalId":365473,"journal":{"name":"2008 International Conference on Computer and Electrical Engineering","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115141041","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}
Maintenance of good quality of power supply is essential for reliability and stability of power system. The effects due to power transformer switching and the transient effects are investigated in this paper. The DWT based techniques are suggested in the past to analyze the transient effects and to respond at a faster rate to improve the quality of power system and its protection. These measures were though efficient in providing better solution but found to be high resource consuming under remote applications. This high resource consumption results in slower response and reduces the reliability in power system. A FPGA based DWT architecture is suggested to improve the efficiency of estimation and response in the power system. The Field Programmable Gate Arrays (FPGA) based DWT architecture is evaluated with theoretical results from MATLAB and were observed to be meeting the accuracy of estimation.
{"title":"A New Technique for Improving the Power Quality in Power Transformers by FPGA","authors":"P. Kumar, K. Anjaneyulu, T. M. Krishna","doi":"10.1109/ICCEE.2008.111","DOIUrl":"https://doi.org/10.1109/ICCEE.2008.111","url":null,"abstract":"Maintenance of good quality of power supply is essential for reliability and stability of power system. The effects due to power transformer switching and the transient effects are investigated in this paper. The DWT based techniques are suggested in the past to analyze the transient effects and to respond at a faster rate to improve the quality of power system and its protection. These measures were though efficient in providing better solution but found to be high resource consuming under remote applications. This high resource consumption results in slower response and reduces the reliability in power system. A FPGA based DWT architecture is suggested to improve the efficiency of estimation and response in the power system. The Field Programmable Gate Arrays (FPGA) based DWT architecture is evaluated with theoretical results from MATLAB and were observed to be meeting the accuracy of estimation.","PeriodicalId":365473,"journal":{"name":"2008 International Conference on Computer and Electrical Engineering","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127729494","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}
A method for precision force measurement by using the levitation mass method (LMM) is reviewed. In this method, a mass levitated using a pneumatic linear bearing with sufficiently small friction is made to collide with the object being tested, and the instantaneous value of the impact force is measured as the inertial force acting on the mass. The velocity and acceleration of the mass are measured using an optical interferometer. With this method, the relative combined standard uncertainty is estimated to be very small. The prospects for reducing the size and cost of the optical interferometer are also discussed.
{"title":"Precision and Compact Dynamic Bending Tester","authors":"K. Maru, Y. Fujii","doi":"10.1109/ICCEE.2008.117","DOIUrl":"https://doi.org/10.1109/ICCEE.2008.117","url":null,"abstract":"A method for precision force measurement by using the levitation mass method (LMM) is reviewed. In this method, a mass levitated using a pneumatic linear bearing with sufficiently small friction is made to collide with the object being tested, and the instantaneous value of the impact force is measured as the inertial force acting on the mass. The velocity and acceleration of the mass are measured using an optical interferometer. With this method, the relative combined standard uncertainty is estimated to be very small. The prospects for reducing the size and cost of the optical interferometer are also discussed.","PeriodicalId":365473,"journal":{"name":"2008 International Conference on Computer and Electrical Engineering","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132699762","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}
This paper introduces a new integrated method for segmenting image which imitates the human observing mechanism. Human firstly pays attention to large objects, then some details, and lastly the concerned details. At the first stage of the algorithm discontinuous edges are detected in the original image, then cut equidistantly to some segmentations, and the end points of segmentations are gathered into a points set. At the second stage a constrained Delaunay triangulation is yielded from the points set and then a graph is attained too. Graph cut algorithm such as minimum spanning tree (MST), is then performed to assemble triangles into regions. At the last stage, the obtained regions are projected into the original image and region boundaries are refined by snake model. Experimental results show that edges are accurate, and a good spatial coherence is attained.
{"title":"A 3 Levels Image Segmentation with Integrated Objects and Local Information","authors":"L. Sheng, Z. Gong, Zhenhua Chen, Shen Long","doi":"10.1109/ICCEE.2008.13","DOIUrl":"https://doi.org/10.1109/ICCEE.2008.13","url":null,"abstract":"This paper introduces a new integrated method for segmenting image which imitates the human observing mechanism. Human firstly pays attention to large objects, then some details, and lastly the concerned details. At the first stage of the algorithm discontinuous edges are detected in the original image, then cut equidistantly to some segmentations, and the end points of segmentations are gathered into a points set. At the second stage a constrained Delaunay triangulation is yielded from the points set and then a graph is attained too. Graph cut algorithm such as minimum spanning tree (MST), is then performed to assemble triangles into regions. At the last stage, the obtained regions are projected into the original image and region boundaries are refined by snake model. Experimental results show that edges are accurate, and a good spatial coherence is attained.","PeriodicalId":365473,"journal":{"name":"2008 International Conference on Computer and Electrical Engineering","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134519978","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}
In this paper, a method for developing optimal bidding strategies for load server entities (LSE) is presented. The market structure consists of a day-ahead market and a real time market. The LSE's objective is to minimize the total cost of purchasing power from two markets. Given the expected demand and the two market price forecasts, the quantity which should be purchased in each market and demand bid curve are derived. The problem is formulated as a stochastic optimization problem because demand of load server entities and prices of electricity markets are uncertain. The problem is solved by Monte-carlo simulation, and a numerical simulation is performed using California power market data.
{"title":"Optimal Bidding Strategies for Load Server Entities in Electric Power Markets","authors":"G. Ghanavati, S. Esmaeili","doi":"10.1109/ICCEE.2008.152","DOIUrl":"https://doi.org/10.1109/ICCEE.2008.152","url":null,"abstract":"In this paper, a method for developing optimal bidding strategies for load server entities (LSE) is presented. The market structure consists of a day-ahead market and a real time market. The LSE's objective is to minimize the total cost of purchasing power from two markets. Given the expected demand and the two market price forecasts, the quantity which should be purchased in each market and demand bid curve are derived. The problem is formulated as a stochastic optimization problem because demand of load server entities and prices of electricity markets are uncertain. The problem is solved by Monte-carlo simulation, and a numerical simulation is performed using California power market data.","PeriodicalId":365473,"journal":{"name":"2008 International Conference on Computer and Electrical Engineering","volume":"53 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132569437","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}
The electromagnetic torque ripple is one of the most important drawbacks of the Direct Torque Control for Induction Motors using Matrix Converters at low speed. This paper investigate the use of multiple voltage vectors of Matrix Converters to reduce the electromagnetic torque ripple which appears when Direct Torque Control technique is used in Induction Motors. The standard look up table for Direct Torque Control is improved in order to include the multiple voltage vectors (long voltage vectors, short voltage vectors and zero voltage vectors). A hysteresis comparator with five-level output is proposed to determine the small and large torque errors and consequently the electromagnetic torque ripple is reduced. Finally, the simulation results have verified the feasibilities of this novel control strategy.
{"title":"Multiple Voltage Vectors Control Strategy for the Direct Torque Control Using Matrix Converters","authors":"Pei Luo, Jian-lin Zhu","doi":"10.1109/ICCEE.2008.73","DOIUrl":"https://doi.org/10.1109/ICCEE.2008.73","url":null,"abstract":"The electromagnetic torque ripple is one of the most important drawbacks of the Direct Torque Control for Induction Motors using Matrix Converters at low speed. This paper investigate the use of multiple voltage vectors of Matrix Converters to reduce the electromagnetic torque ripple which appears when Direct Torque Control technique is used in Induction Motors. The standard look up table for Direct Torque Control is improved in order to include the multiple voltage vectors (long voltage vectors, short voltage vectors and zero voltage vectors). A hysteresis comparator with five-level output is proposed to determine the small and large torque errors and consequently the electromagnetic torque ripple is reduced. Finally, the simulation results have verified the feasibilities of this novel control strategy.","PeriodicalId":365473,"journal":{"name":"2008 International Conference on Computer and Electrical Engineering","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132738984","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}
A robust control technique for permanent magnet linear synchronous motors (PMLSM) using adaptive backstepping sliding mode control (ABSMC) is presented. Considering the lumped uncertainties with parameter variations and external disturbance for an actual PMLSM drives, a backstepping sliding mode control law is derived by backstepping design technique. However, the bound of the lumped uncertainty is difficult to obtain in advance in practical applications. An adaptive law is proposed to adapt the value of the lumped uncertainty. Comparing with the backstepping sliding mode control (BSMC), simulated results show that the ABSMC possesses better position tracking performances and robustness to uncertainty for PMLSM drive, and reduces evidently the chattering of ABSMC.
{"title":"Permanent Magnet Linear Synchronous Motor Drive Using Adaptive Backstepping Sliding Mode Control","authors":"Guan Lirong, Yang Junyou","doi":"10.1109/ICCEE.2008.170","DOIUrl":"https://doi.org/10.1109/ICCEE.2008.170","url":null,"abstract":"A robust control technique for permanent magnet linear synchronous motors (PMLSM) using adaptive backstepping sliding mode control (ABSMC) is presented. Considering the lumped uncertainties with parameter variations and external disturbance for an actual PMLSM drives, a backstepping sliding mode control law is derived by backstepping design technique. However, the bound of the lumped uncertainty is difficult to obtain in advance in practical applications. An adaptive law is proposed to adapt the value of the lumped uncertainty. Comparing with the backstepping sliding mode control (BSMC), simulated results show that the ABSMC possesses better position tracking performances and robustness to uncertainty for PMLSM drive, and reduces evidently the chattering of ABSMC.","PeriodicalId":365473,"journal":{"name":"2008 International Conference on Computer and Electrical Engineering","volume":"61 6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133580284","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}
Applying domain engineering, the equipment maintenance support system is analyzed and the essential entities are abstracted. Using the executable specification tool-ExSpect, a domain library is constructed, including maintenance organization module, distribution stock module, transport unit module and management department module. By constructing the simulation Object Model (SOM) and the Interface with Run-Time Infrastructure (RTI), the modules are applied on the High Level Architecture (HLA).
{"title":"Modeling of Equipment Maintenance Support System Domain Library and its Application in HLA Simulation System","authors":"C. Qu, Liu Zhang, Yongli Yu, Songshan Wang","doi":"10.1109/ICCEE.2008.182","DOIUrl":"https://doi.org/10.1109/ICCEE.2008.182","url":null,"abstract":"Applying domain engineering, the equipment maintenance support system is analyzed and the essential entities are abstracted. Using the executable specification tool-ExSpect, a domain library is constructed, including maintenance organization module, distribution stock module, transport unit module and management department module. By constructing the simulation Object Model (SOM) and the Interface with Run-Time Infrastructure (RTI), the modules are applied on the High Level Architecture (HLA).","PeriodicalId":365473,"journal":{"name":"2008 International Conference on Computer and Electrical Engineering","volume":"140 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123386943","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}
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