首页 > 最新文献

2010 Second International Conference on Machine Learning and Computing最新文献

英文 中文
Application of Holographic Neural Network for Stock Price Prediction 全息神经网络在股票价格预测中的应用
Pub Date : 2010-02-09 DOI: 10.1109/ICMLC.2010.42
Vaishnavi R. Kunkoliker
Neural Networks are models of biological neural structure, so the scientist, engineers & mathematicians etc. try to make an intellectual abstraction with the help of neural network which would enable a computer work in a similar fashion in which the human brain works. Here we use a specific type of neural network called “Holographic Neural Network” (HNN), for stock price prediction. HNN takes in the input through Stimulus Vector and gives output through Response Vector. Each element in HNN is associated with a confidence & magnitude value, for this the input given should be in polar form of complex numbers. The results predicted by HNN are compared to results predicted by Regression method.
神经网络是生物神经结构的模型,所以科学家、工程师和数学家等都试图在神经网络的帮助下进行智力抽象,这将使计算机能够以类似于人脑工作的方式工作。在这里,我们使用一种特定类型的神经网络,称为“全息神经网络”(HNN),用于股票价格预测。HNN通过刺激向量接受输入,通过响应向量给出输出。HNN中的每个元素都与置信度和幅度值相关联,因此给定的输入应该是复数的极坐标形式。将HNN预测结果与回归方法预测结果进行了比较。
{"title":"Application of Holographic Neural Network for Stock Price Prediction","authors":"Vaishnavi R. Kunkoliker","doi":"10.1109/ICMLC.2010.42","DOIUrl":"https://doi.org/10.1109/ICMLC.2010.42","url":null,"abstract":"Neural Networks are models of biological neural structure, so the scientist, engineers & mathematicians etc. try to make an intellectual abstraction with the help of neural network which would enable a computer work in a similar fashion in which the human brain works. Here we use a specific type of neural network called “Holographic Neural Network” (HNN), for stock price prediction. HNN takes in the input through Stimulus Vector and gives output through Response Vector. Each element in HNN is associated with a confidence & magnitude value, for this the input given should be in polar form of complex numbers. The results predicted by HNN are compared to results predicted by Regression method.","PeriodicalId":423912,"journal":{"name":"2010 Second International Conference on Machine Learning and Computing","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128658146","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
Differential Evolution Using Smaller Population 使用较小种群的差异进化
Pub Date : 2010-02-09 DOI: 10.1109/ICMLC.2010.9
Xuan Ren, Zhi-zhao Chen, Zhen Ma
As one of the popular evolutionary algorithms, differential evolution (DE) shows outstanding convergence rate on continuous optimization problems. But prematurity probably still occurs in classical DE when using relatively small population, which is discussed in this paper. Considering that large population may significantly raise the computational effort, we propose a modified DE using smaller population (DESP) by introducing extra disturbance to its mutation operation. In addition, an adaptive adjustment scheme is designed to control the disturbance intensity according to the improvement during the evolution. To test the performance of DESP, two groups of experiments are conducted. The results show that DESP outperforms DE in terms of convergence rate and accuracy.
差分进化算法作为一种流行的进化算法,在连续优化问题上表现出优异的收敛速度。但是,当使用相对较小的种群时,经典DE仍然可能出现早产,本文对此进行了讨论。考虑到大种群可能会显著增加计算量,我们提出了一种使用较小种群的改进DE (DESP),通过在其突变操作中引入额外的干扰。此外,还设计了一种自适应调整方案,根据进化过程中的改进程度来控制扰动强度。为了测试DESP的性能,我们进行了两组实验。结果表明,DESP在收敛速度和准确率方面都优于DE。
{"title":"Differential Evolution Using Smaller Population","authors":"Xuan Ren, Zhi-zhao Chen, Zhen Ma","doi":"10.1109/ICMLC.2010.9","DOIUrl":"https://doi.org/10.1109/ICMLC.2010.9","url":null,"abstract":"As one of the popular evolutionary algorithms, differential evolution (DE) shows outstanding convergence rate on continuous optimization problems. But prematurity probably still occurs in classical DE when using relatively small population, which is discussed in this paper. Considering that large population may significantly raise the computational effort, we propose a modified DE using smaller population (DESP) by introducing extra disturbance to its mutation operation. In addition, an adaptive adjustment scheme is designed to control the disturbance intensity according to the improvement during the evolution. To test the performance of DESP, two groups of experiments are conducted. The results show that DESP outperforms DE in terms of convergence rate and accuracy.","PeriodicalId":423912,"journal":{"name":"2010 Second International Conference on Machine Learning and Computing","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133946087","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: 5
Video Coding Technique Using Swarm Intelligence in 3-D Dual Tree Complex Wavelet Transform 基于群体智能的三维对偶树复小波变换视频编码技术
Pub Date : 2010-02-09 DOI: 10.1109/ICMLC.2010.39
M. Thamarai, R. Shanmugalakshmi
Video compression plays an important role in video signal processing, transmission and storage. Since the available bandwidth for transmission is very limited, Multimedia Applications such as video conferencing, video on demand, video telephony and remote sensing are not possible without compression. A lot of video compression techniques have been developed and the video signal transmission has followed at data rates below 64kbps. Wavelet transform based motion compensated video codec performs better compression in order to meet the rate and distortion constraint in video transmission for the available bandwidth than the block based techniques, which are followed in standard video transmissions such as H.261 and H.263. But the efficiency of those technique’s depends on the way in which it estimates and compensates the object motions in the video sequence. Wavelet based embedded image coder is quite attractive in modern multimedia applications. Wavelet transform, bit plane coding and other techniques make embedded image coder practical and also provide efficient compression. In this paper, we have proposed a novel video coding using swarm intelligence in dual tree complex wavelet transform for video coding. The 3-D DDWT is an attractive video representation because it isolates motion along different directions in separate subbands. However, it is an over-complete transform with redundancy, which is going to be eliminated by choosing optimal subbands with the help of PSO. The proposed video codec does not require motion compensation and provides better performance than the 3D SPIHT (Embedded type)codec, both objectively and subjectively, and the coder allows full scalability in spatial, temporal and quality dimensions.
视频压缩在视频信号的处理、传输和存储中起着重要的作用。由于可用于传输的带宽非常有限,如果没有压缩,诸如视频会议、视频点播、视频电话和遥感等多媒体应用就不可能实现。随着视频压缩技术的发展,视频信号的传输速率逐渐降低到64kbps以下。在H.261和H.263等标准视频传输中,基于小波变换的运动补偿视频编解码器比基于块的技术具有更好的压缩性能,以满足视频传输中可用带宽的速率和失真约束。但这些技术的效率取决于它在视频序列中估计和补偿物体运动的方式。基于小波的嵌入式图像编码器在现代多媒体应用中具有很大的吸引力。小波变换、位平面编码等技术使嵌入式图像编码器在提供高效压缩的同时具有实用性。本文提出了一种利用群智能在对偶树复小波变换中进行视频编码的新方法。三维DDWT是一种有吸引力的视频表示,因为它在不同的子带中分离了沿不同方向的运动。然而,它是一个具有冗余的过完备变换,可以通过粒子群算法选择最优子带来消除。所提出的视频编解码器不需要运动补偿,并且在客观上和主观上都比3D SPIHT(嵌入式类型)编解码器提供更好的性能,并且编码器在空间、时间和质量维度上允许完全的可扩展性。
{"title":"Video Coding Technique Using Swarm Intelligence in 3-D Dual Tree Complex Wavelet Transform","authors":"M. Thamarai, R. Shanmugalakshmi","doi":"10.1109/ICMLC.2010.39","DOIUrl":"https://doi.org/10.1109/ICMLC.2010.39","url":null,"abstract":"Video compression plays an important role in video signal processing, transmission and storage. Since the available bandwidth for transmission is very limited, Multimedia Applications such as video conferencing, video on demand, video telephony and remote sensing are not possible without compression. A lot of video compression techniques have been developed and the video signal transmission has followed at data rates below 64kbps. Wavelet transform based motion compensated video codec performs better compression in order to meet the rate and distortion constraint in video transmission for the available bandwidth than the block based techniques, which are followed in standard video transmissions such as H.261 and H.263. But the efficiency of those technique’s depends on the way in which it estimates and compensates the object motions in the video sequence. Wavelet based embedded image coder is quite attractive in modern multimedia applications. Wavelet transform, bit plane coding and other techniques make embedded image coder practical and also provide efficient compression. In this paper, we have proposed a novel video coding using swarm intelligence in dual tree complex wavelet transform for video coding. The 3-D DDWT is an attractive video representation because it isolates motion along different directions in separate subbands. However, it is an over-complete transform with redundancy, which is going to be eliminated by choosing optimal subbands with the help of PSO. The proposed video codec does not require motion compensation and provides better performance than the 3D SPIHT (Embedded type)codec, both objectively and subjectively, and the coder allows full scalability in spatial, temporal and quality dimensions.","PeriodicalId":423912,"journal":{"name":"2010 Second International Conference on Machine Learning and Computing","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116279425","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: 11
Optimal Control for Discrete Large Scale Nonlinear Systems Using Hierarchical Fuzzy Systems 离散大型非线性系统的层次模糊最优控制
Pub Date : 2010-02-09 DOI: 10.1109/ICMLC.2010.32
Najla Krichen Masmoudi, C. Rekik, M. Djemel, N. Derbel
This paper presents a method to compute optimal control strategies of discrete large scale nonlinear systems by using hierarchical fuzzy systems. The method is based on the decomposition principle of the global system into interconnected subsystems becoming easier to study. Then, the differential dynamic programming procedure is applied in order to obtain the rule basis. After that, we construct limpid-hierarchical Mamdani fuzzy system in order to compute optimal control laws, for each subsystem. Simulation results of a rotary crane show that the proposed method yields to satisfactory performances. The robustness of the proposed approach is verified.
本文提出了一种利用层次模糊系统计算离散大型非线性系统最优控制策略的方法。该方法基于将全局系统分解为相互关联的子系统的原理,更易于研究。然后,应用微分动态规划方法获得规则基。在此基础上,构造了清晰分层的Mamdani模糊系统,以计算各子系统的最优控制律。对旋转起重机的仿真结果表明,该方法具有良好的性能。验证了该方法的鲁棒性。
{"title":"Optimal Control for Discrete Large Scale Nonlinear Systems Using Hierarchical Fuzzy Systems","authors":"Najla Krichen Masmoudi, C. Rekik, M. Djemel, N. Derbel","doi":"10.1109/ICMLC.2010.32","DOIUrl":"https://doi.org/10.1109/ICMLC.2010.32","url":null,"abstract":"This paper presents a method to compute optimal control strategies of discrete large scale nonlinear systems by using hierarchical fuzzy systems. The method is based on the decomposition principle of the global system into interconnected subsystems becoming easier to study. Then, the differential dynamic programming procedure is applied in order to obtain the rule basis. After that, we construct limpid-hierarchical Mamdani fuzzy system in order to compute optimal control laws, for each subsystem. Simulation results of a rotary crane show that the proposed method yields to satisfactory performances. The robustness of the proposed approach is verified.","PeriodicalId":423912,"journal":{"name":"2010 Second International Conference on Machine Learning and Computing","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121237547","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: 9
Isolated Handwritten Malayalam Character Recognition Using HLH Intensity Patterns 孤立手写马拉雅拉姆文字识别使用HLH强度模式
Pub Date : 2010-02-09 DOI: 10.1109/ICMLC.2010.8
M. Rahiman, Aswathy Shajan, A. Elizabeth, M. Divya, G. M. Kumar, M. Rajasree
Recently Indian Handwritten character recognition is getting much more attention and researchers are contributing a lot in this field. But Malayalam, a South Indian language has very less works in this area and needs further attention. This paper focuses on an efficient algorithm for recognizing the handwritten Malayalam characters. Malayalam OCR is a complex task owing to the various character scripts available and more importantly the difference in ways in which the characters are written. The dimensions are never the same and may be never mapped on to a square grid unlike English characters. Here we propose an algorithm which can accept the scanned image of handwritten characters as input and to produce the editable Malayalam characters in a predefined format as output without applying any resizing or skeletonization methods but still can produce much accurate results. Characters are grouped in to different classes based on their HLH intensity patterns. These patterns are separated from the image and fed for recognition. Algorithm is tested for 4 sets of samples ranging 661 letters in the noiseless environment and produces an accuracy of 88%.
近年来,印度手写体字符识别越来越受到人们的关注,研究人员在这一领域做出了很多贡献。但南印度语马拉雅拉姆语在这方面的作品很少,需要进一步关注。本文研究了一种高效的马来雅拉姆文字手写识别算法。马拉雅拉姆语OCR是一项复杂的任务,因为有各种各样的字符脚本,更重要的是字符书写方式的差异。尺寸从来都不相同,可能永远不会映射到不像英语字符的正方形网格上。在这里,我们提出了一种算法,它可以接受手写字符的扫描图像作为输入,并以预定义的格式产生可编辑的马拉雅拉姆字符作为输出,而不应用任何调整大小或骨架化方法,但仍然可以产生非常准确的结果。根据HLH强度模式,将字符分组为不同的类别。这些模式从图像中分离出来,供识别使用。算法在无噪声环境下对4组661个字母的样本进行了测试,准确率达到88%。
{"title":"Isolated Handwritten Malayalam Character Recognition Using HLH Intensity Patterns","authors":"M. Rahiman, Aswathy Shajan, A. Elizabeth, M. Divya, G. M. Kumar, M. Rajasree","doi":"10.1109/ICMLC.2010.8","DOIUrl":"https://doi.org/10.1109/ICMLC.2010.8","url":null,"abstract":"Recently Indian Handwritten character recognition is getting much more attention and researchers are contributing a lot in this field. But Malayalam, a South Indian language has very less works in this area and needs further attention. This paper focuses on an efficient algorithm for recognizing the handwritten Malayalam characters. Malayalam OCR is a complex task owing to the various character scripts available and more importantly the difference in ways in which the characters are written. The dimensions are never the same and may be never mapped on to a square grid unlike English characters. Here we propose an algorithm which can accept the scanned image of handwritten characters as input and to produce the editable Malayalam characters in a predefined format as output without applying any resizing or skeletonization methods but still can produce much accurate results. Characters are grouped in to different classes based on their HLH intensity patterns. These patterns are separated from the image and fed for recognition. Algorithm is tested for 4 sets of samples ranging 661 letters in the noiseless environment and produces an accuracy of 88%.","PeriodicalId":423912,"journal":{"name":"2010 Second International Conference on Machine Learning and Computing","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131662447","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: 34
Impact of Preprocessing for Diagnosis of Diabetes Mellitus Using Artificial Neural Networks 预处理对人工神经网络诊断糖尿病的影响
Pub Date : 2010-02-09 DOI: 10.1109/ICMLC.2010.65
T. Jayalskshmi, A. Santhakumaran
Medicine has always benefited from the technology. Artificial Neural Networks is currently the promising area of interest to solve medical problems. Diagnosis of diabetes is one of the most challenging problems in machine learning. This medical data set is seldom complete. Artificial neural networks require complete set of data for an accurate classification. The system explains how the pre-processing procedure and missing values influence the data set during the classification. The implemented system compares various missing value techniques and pre-processing techniques. Some combinations prove the real influence of these techniques. A classifier has applied to Pima Indian Diabetes dataset and the results were improved tremendously when using certain combination of preprocessing and missing value techniques. The experimental system achieves an excellent classification accuracy of 99% which is best than before.
医学一直受益于这项技术。人工神经网络是目前解决医疗问题的一个有前途的领域。糖尿病的诊断是机器学习中最具挑战性的问题之一。这个医疗数据集很少是完整的。人工神经网络需要完整的数据集才能进行准确的分类。说明了分类过程中预处理过程和缺失值对数据集的影响。实现的系统对各种缺失值技术和预处理技术进行了比较。一些组合证明了这些技术的真正影响。将一种分类器应用于皮马印第安人糖尿病数据集,在使用预处理和缺失值技术的一定组合时,结果得到了极大的改善。实验系统的分类准确率达到了99%,比以前的分类准确率提高了很多。
{"title":"Impact of Preprocessing for Diagnosis of Diabetes Mellitus Using Artificial Neural Networks","authors":"T. Jayalskshmi, A. Santhakumaran","doi":"10.1109/ICMLC.2010.65","DOIUrl":"https://doi.org/10.1109/ICMLC.2010.65","url":null,"abstract":"Medicine has always benefited from the technology. Artificial Neural Networks is currently the promising area of interest to solve medical problems. Diagnosis of diabetes is one of the most challenging problems in machine learning. This medical data set is seldom complete. Artificial neural networks require complete set of data for an accurate classification. The system explains how the pre-processing procedure and missing values influence the data set during the classification. The implemented system compares various missing value techniques and pre-processing techniques. Some combinations prove the real influence of these techniques. A classifier has applied to Pima Indian Diabetes dataset and the results were improved tremendously when using certain combination of preprocessing and missing value techniques. The experimental system achieves an excellent classification accuracy of 99% which is best than before.","PeriodicalId":423912,"journal":{"name":"2010 Second International Conference on Machine Learning and Computing","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132375587","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: 25
Improving ANN BFSK Demodulator Performance with Training Data Sequence Sent by Transmitter 利用发射机发送的训练数据序列改进人工神经网络BFSK解调器的性能
Pub Date : 2010-02-09 DOI: 10.1109/ICMLC.2010.28
M. Amini, E. Balarastaghi
In this paper the effect of training neural network BFSK demodulator with noisy data (sent by transmitter and affected by channel) is discussed and the results is compared with predefined noiseless data bits. Distributed time-delay neural network is selected and get trained by both noisy and noiseless data bits. Simulations show that training a neural network demodulator by predetermined data bits sent by transmitter (noisy data) helps demodulator detect data bits with less error. That is because noisy data can give the neural network demodulator some information about channel behavior and environmental noise and consequently it can help receiver to detect data bits intelligently. Matlab simulations in an AWGN channel prove the idea.
本文讨论了带噪声数据(由发射机发送,受信道影响)训练神经网络BFSK解调器的效果,并将结果与预定义的无噪声数据位进行了比较。选择分布式时滞神经网络,并分别使用有噪声和无噪声数据进行训练。仿真结果表明,利用发射机发送的预定数据位(噪声数据)来训练神经网络解调器,可以使解调器检测数据位的误差更小。这是因为噪声数据可以给神经网络解调器提供一些信道行为和环境噪声的信息,从而帮助接收机智能地检测数据位。在AWGN信道中的Matlab仿真验证了该思想。
{"title":"Improving ANN BFSK Demodulator Performance with Training Data Sequence Sent by Transmitter","authors":"M. Amini, E. Balarastaghi","doi":"10.1109/ICMLC.2010.28","DOIUrl":"https://doi.org/10.1109/ICMLC.2010.28","url":null,"abstract":"In this paper the effect of training neural network BFSK demodulator with noisy data (sent by transmitter and affected by channel) is discussed and the results is compared with predefined noiseless data bits. Distributed time-delay neural network is selected and get trained by both noisy and noiseless data bits. Simulations show that training a neural network demodulator by predetermined data bits sent by transmitter (noisy data) helps demodulator detect data bits with less error. That is because noisy data can give the neural network demodulator some information about channel behavior and environmental noise and consequently it can help receiver to detect data bits intelligently. Matlab simulations in an AWGN channel prove the idea.","PeriodicalId":423912,"journal":{"name":"2010 Second International Conference on Machine Learning and Computing","volume":"221 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121565721","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: 19
Wall Static Pressure Variation in Sudden Expansion in Cylindrical Ducts with Supersonic Flow: A Fuzzy Logic Approach 基于模糊逻辑的超声速流动圆柱形管道突然膨胀壁面静压变化分析
Pub Date : 2010-02-09 DOI: 10.1109/ICMLC.2010.74
K. Pandey
In this paper the analysis of wall static pressure variation has been done with fuzzy logic approach to have smooth flow in the duct. Here there are three area ratio choosen for the enlarged duct, 2.89, 6.00 and 10.00. The primary pressure ratio is taken as 2.65 and cavity aspect ratio is taken as 1 and 2. The study is analysed for length to diameter ratio of 1,2,4 and 6. The nozzles used are De Laval type and with a Mach number of 1.74 and 2.23 and conical nozzles having Mach numbers of 1.58 and 2.06. The analysis based on fuzzy logic theory indicates that the length to diameter ratio of 1 is sufficient for smooth flow development if only the basis of wall static pressure variations is considered.
本文采用模糊逻辑方法对管道内壁静压变化进行了分析,以保证管道内的顺畅流动。放大导管的面积比为2.89、6.00和10.00。取一次压力比为2.65,空腔长径比分别为1和2。研究分析了长径比为1,2,4和6。所使用的喷嘴为De Laval型,马赫数为1.74和2.23,锥形喷嘴为1.58和2.06。基于模糊逻辑理论的分析表明,仅考虑壁面静压变化的基础,长径比为1足以使流动平稳发展。
{"title":"Wall Static Pressure Variation in Sudden Expansion in Cylindrical Ducts with Supersonic Flow: A Fuzzy Logic Approach","authors":"K. Pandey","doi":"10.1109/ICMLC.2010.74","DOIUrl":"https://doi.org/10.1109/ICMLC.2010.74","url":null,"abstract":"In this paper the analysis of wall static pressure variation has been done with fuzzy logic approach to have smooth flow in the duct. Here there are three area ratio choosen for the enlarged duct, 2.89, 6.00 and 10.00. The primary pressure ratio is taken as 2.65 and cavity aspect ratio is taken as 1 and 2. The study is analysed for length to diameter ratio of 1,2,4 and 6. The nozzles used are De Laval type and with a Mach number of 1.74 and 2.23 and conical nozzles having Mach numbers of 1.58 and 2.06. The analysis based on fuzzy logic theory indicates that the length to diameter ratio of 1 is sufficient for smooth flow development if only the basis of wall static pressure variations is considered.","PeriodicalId":423912,"journal":{"name":"2010 Second International Conference on Machine Learning and Computing","volume":"241 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115220874","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: 6
期刊
2010 Second International Conference on Machine Learning and Computing
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1