2015 Fifth International Conference on Instrumentation and Measurement, Computer, Communication and Control (IMCCC)最新文献_第7页

Investigation on Gas-Liquid Two-Phase Flow Patterns across an In-Line Tube Bundles 直列管束气液两相流型研究

2015 Fifth International Conference on Instrumentation and Measurement, Computer, Communication and Control (IMCCC) Pub Date : 2015-09-01 DOI: 10.1109/IMCCC.2015.167

Hong Wenpeng, Liu Yunlong, Liu Yan

{"title":"Investigation on Gas-Liquid Two-Phase Flow Patterns across an In-Line Tube Bundles","authors":"Hong Wenpeng, Liu Yunlong, Liu Yan","doi":"10.1109/IMCCC.2015.167","DOIUrl":"https://doi.org/10.1109/IMCCC.2015.167","url":null,"abstract":"A high-speed video camera was used to study the flow patterns in the rectangular channel of vertical upward cross-flow of air and water in horizontal tube bundles. Experiments were conducted using in-line tube bundles with a pitch-to-diameter ratio of 1.3 and 1.8. Bubbly flow, intermittent flow and mist flow were identified by flow visualization, and a flow map was constructed as a function of gas and liquid superficial velocities. The information of a single-frame was extracted and made into time series. The recurrence quantification analysis method was used to study the dynamic characteristics of information entropy of gas-liquid two phase typical flow patterns and transition flow patterns. The results show that the recurrence plot of entropy series of transition flow patterns shows the process of flow transition. The characterization result showed that the recurrence plot of information entropy could well reflect the evolution characteristics of flow pattern, and the recurrence characteristics quantities were sensitive to the variations of superficial gas velocity and provided an auxiliary tool for investigation of gas-liquid two-phase flow mechanism.","PeriodicalId":438549,"journal":{"name":"2015 Fifth International Conference on Instrumentation and Measurement, Computer, Communication and Control (IMCCC)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126527856","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

A Hand Gesture Detection for Multi-Class Cascade Classifier Based on Gradient 基于梯度的多类级联分类器手势检测

2015 Fifth International Conference on Instrumentation and Measurement, Computer, Communication and Control (IMCCC) Pub Date : 2015-09-01 DOI: 10.1109/IMCCC.2015.292

Feng Tian, Qiu-Chen Hu, T. Zhang

引用次数: 2

Ozone Day Prediction Using a Combination Method of Matrix Completion and Interactive Lasso 基于矩阵补全和交互式套索相结合的臭氧日预测方法

2015 Fifth International Conference on Instrumentation and Measurement, Computer, Communication and Control (IMCCC) Pub Date : 2015-09-01 DOI: 10.1109/IMCCC.2015.26

Jing Li, Chun-Xia Chen, Xue Jiang, Jinjia Wang

引用次数: 0

Adaptive Local Gamma Correction Based on Mean Value Adjustment 基于均值调整的自适应局部伽玛校正

2015 Fifth International Conference on Instrumentation and Measurement, Computer, Communication and Control (IMCCC) Pub Date : 2015-09-01 DOI: 10.1109/IMCCC.2015.395

Ying Li, Xiaolin Liu, Yan Liu

{"title":"Adaptive Local Gamma Correction Based on Mean Value Adjustment","authors":"Ying Li, Xiaolin Liu, Yan Liu","doi":"10.1109/IMCCC.2015.395","DOIUrl":"https://doi.org/10.1109/IMCCC.2015.395","url":null,"abstract":"In complicated high dynamic scene, current gamma correction methods sometimes suffer from a loss of local details in certain regions of different luminance. In this paper, an adaptive local gamma correction method based on mean value adjustment is proposed, which is aimed at improve local details in both dark and bright regions in image. As the preprocessing, a global enhancement method is applied to improve the global contrast and then the proposed local gamma correction is undertook. Based on the Shih-Chia Huang's method, the proposed local gamma correction method has made improvement in two aspects and applied it to the local regions. For one thing, the average gray is regarded as one of the critical factors to determine the gamma value in the corresponding local region, which could adaptively improve the contrast both in dark and bright areas while preserve the original luminance of the regions that already own good contrast. For the other, followed by color correction, a novel histogram modification method aimed at avoiding the over-enhancement in smooth regions is used, which manager to maintain the histogram's original shape and suppress the large components in it at the same time. Experiments prove that the proposed method could get much more visual-pleasing and natural results.","PeriodicalId":438549,"journal":{"name":"2015 Fifth International Conference on Instrumentation and Measurement, Computer, Communication and Control (IMCCC)","volume":"125 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121729251","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

A BLDCM Driver Based on High Frequency Link Matrix Converter 基于高频链路矩阵变换器的无刷直流电机驱动器

2015 Fifth International Conference on Instrumentation and Measurement, Computer, Communication and Control (IMCCC) Pub Date : 2015-09-01 DOI: 10.1109/IMCCC.2015.412

Ying Xiao, Zhaoyang Yan, Yalin Wang, Guang Zhang, Jianxia Li

引用次数: 2

A Survey on MapReduce Scheduling in Cloud Computing 云计算中MapReduce调度研究综述

2015 Fifth International Conference on Instrumentation and Measurement, Computer, Communication and Control (IMCCC) Pub Date : 2015-09-01 DOI: 10.1109/IMCCC.2015.363

Li Liu, Yingqi Zhai

引用次数: 0

Research on High-Voltage Reactive Power Optimization of Oil-Field Distribution Network Considering Load Dynamic Performance 考虑负荷动态特性的油田配电网高压无功优化研究

2015 Fifth International Conference on Instrumentation and Measurement, Computer, Communication and Control (IMCCC) Pub Date : 2015-09-01 DOI: 10.1109/IMCCC.2015.124

K. Zhongjian, Chen Yao, Li Yan

引用次数: 1

ATS Software Framework Design Pattern and Application ATS软件框架设计模式及应用

2015 Fifth International Conference on Instrumentation and Measurement, Computer, Communication and Control (IMCCC) Pub Date : 2015-09-01 DOI: 10.1109/IMCCC.2015.37

Yuan Mei, Fan Lingjie

引用次数: 2

Identification of People in a Camera's Field of View Using Acoustic Signal from Mobile Phone 利用手机声信号识别相机视场中的人物

2015 Fifth International Conference on Instrumentation and Measurement, Computer, Communication and Control (IMCCC) Pub Date : 2015-09-01 DOI: 10.1109/IMCCC.2015.176

Yan Liu, Qiang Wang, Juan Chen

{"title":"Identification of People in a Camera's Field of View Using Acoustic Signal from Mobile Phone","authors":"Yan Liu, Qiang Wang, Juan Chen","doi":"10.1109/IMCCC.2015.176","DOIUrl":"https://doi.org/10.1109/IMCCC.2015.176","url":null,"abstract":"We propose a graph matching based approach to identify multiple people in an indoor localization system by using the infrastructure camera along with microphone and speaker in a smart phone. Given a frame captured by the camera, an attributed graph is composed by considering each person in the frame as the vertice and the distance between people derived from the locations provided by the camera as the attribute of an edge. In the same way, another attributed graph is obtained from the perspective of smart phone, which has a unique ID and enables acoustic ranging technique between the people. Since more accurate distances are from camera than from smart phone, the graphs on the camera and smart phone are respectively defined as model graph and data graph for graph matching method. For working in real time, Spectral Matching algorithm is applied on the two graphs. As well, we propose to make use of slide window in the graph matching method in order to improve the approach's robustness, which indicates it can provide reasonable identification results even with much erroneous distances. The excellent performance of the proposed approach is demonstrated by results obtained from several sets of test-driven simulation experiments.","PeriodicalId":438549,"journal":{"name":"2015 Fifth International Conference on Instrumentation and Measurement, Computer, Communication and Control (IMCCC)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122827159","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

Positive/Negative Pulse Charging Technology of Battery Based on PFC-LLC Topology 基于PFC-LLC拓扑的电池正/负脉冲充电技术

2015 Fifth International Conference on Instrumentation and Measurement, Computer, Communication and Control (IMCCC) Pub Date : 2015-09-01 DOI: 10.1109/IMCCC.2015.223

Wang Yuepeng, Yan Zhaoyang, T. Meng, Xiao Ying

引用次数: 1