NS(Simulator Network) is an object-oriented visual simulator based on large-scale discrete event. It simulates not only the transmission of network data and topology architecture, but also all kinds of IP network circumstance. This paper describes the architecture and characteristics of NS, and also gives the technique and the general process based on NS. The instance of a streaming media applications-based adaptive congestion control algorithm is implemented and simulation results are analyzed. The experimental result shows that when the network is congested, the delay, delay jitter and throughput will be corresponding changes in objective phenomenon.
{"title":"Simulation and Analysis of a Streaming Media Congestion Control Algorithm Based on NS-2","authors":"Wei Mao, D. Qi, Congming Wu, Kangyi Zhang","doi":"10.1109/ICCIS.2012.282","DOIUrl":"https://doi.org/10.1109/ICCIS.2012.282","url":null,"abstract":"NS(Simulator Network) is an object-oriented visual simulator based on large-scale discrete event. It simulates not only the transmission of network data and topology architecture, but also all kinds of IP network circumstance. This paper describes the architecture and characteristics of NS, and also gives the technique and the general process based on NS. The instance of a streaming media applications-based adaptive congestion control algorithm is implemented and simulation results are analyzed. The experimental result shows that when the network is congested, the delay, delay jitter and throughput will be corresponding changes in objective phenomenon.","PeriodicalId":269967,"journal":{"name":"2012 Fourth International Conference on Computational and Information Sciences","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127601847","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}
Objective To evaluate the efficacy of artificial liver support system (ALSS) in the treatment of liver failure patients. Methods This is a multi-center, controlled, large sample clinic trial. 916 patients with liver failure from 6 hospitals were studied and followed. All the patients received similar pharmacological manipulation according to one and the same protocol but were divided into an ALSS treatment group and a control group without ALSS treatment. The analysis of survival time was computed using the Kaplan-Maier method, and comparison among groups was done using Log-Rank and Breslow test. Results Survival time of acute liver failure patients was prolonged from 4.0 days to 8.0 days. ALSS with many times increased the survival time of acute liver failure patients. In addition, it increased the survival time of the patients in end stage of liver failure. The survival time of end stage patients of the two times ALSS group and the control group was 51.0 days vs 27.0 days. Conclusion ALSS has tendency to prolong the survival time; ALSS has obvious effect on survival time of acute liver failure and prolong their survival time; ALSS can affect the short-term survival time of end stage patients; ALSS times have an obvious effect on survival time of liver patients especially the acute severe hepatitis and chronic severe ones and chronic repeat ones. Multi-ALSS treatment is more effective than the standard medicinal liver care treatment. Multi-ALSS treatment could increase survival time of patients suffering from acute liver failure or middle and end stage liver failure. It is important and necessary to treat these patients with ALSS.
{"title":"Effect of Artificial Liver Support System on Survival Time of Severe Hepatitis Patients","authors":"Wen-fang Wu, Z. Jing","doi":"10.1109/ICCIS.2012.137","DOIUrl":"https://doi.org/10.1109/ICCIS.2012.137","url":null,"abstract":"Objective To evaluate the efficacy of artificial liver support system (ALSS) in the treatment of liver failure patients. Methods This is a multi-center, controlled, large sample clinic trial. 916 patients with liver failure from 6 hospitals were studied and followed. All the patients received similar pharmacological manipulation according to one and the same protocol but were divided into an ALSS treatment group and a control group without ALSS treatment. The analysis of survival time was computed using the Kaplan-Maier method, and comparison among groups was done using Log-Rank and Breslow test. Results Survival time of acute liver failure patients was prolonged from 4.0 days to 8.0 days. ALSS with many times increased the survival time of acute liver failure patients. In addition, it increased the survival time of the patients in end stage of liver failure. The survival time of end stage patients of the two times ALSS group and the control group was 51.0 days vs 27.0 days. Conclusion ALSS has tendency to prolong the survival time; ALSS has obvious effect on survival time of acute liver failure and prolong their survival time; ALSS can affect the short-term survival time of end stage patients; ALSS times have an obvious effect on survival time of liver patients especially the acute severe hepatitis and chronic severe ones and chronic repeat ones. Multi-ALSS treatment is more effective than the standard medicinal liver care treatment. Multi-ALSS treatment could increase survival time of patients suffering from acute liver failure or middle and end stage liver failure. It is important and necessary to treat these patients with ALSS.","PeriodicalId":269967,"journal":{"name":"2012 Fourth International Conference on Computational and Information Sciences","volume":"84 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127649791","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 borehole sloughing type of collapsing is very common in the drilling process. And this condition may result in drill string sticking and enlarged hole and induce other underground complex conditions, which may affect the successful drilling and underground safety. This thesis analyzes the elements resulting in borehole sloughing, components and properties of the drilling fluid system, and drilling engineering factors; and it proposes the niche targeting but feasible prevention measures of instability from components and properties of drilling fluid to drilling process and operation channels through elements analysis of borehole sloughing type of collapsing; in addition, the thesis describes the implementation of multiple coordination and comprehensive measures for valid prevention of such collapsing in actual drilling process.
{"title":"Cause Analysis and Safety Measures for Borehole Sloughing Type of Collapsing","authors":"Zhengjun Long, Jingcheng Liu","doi":"10.1109/ICCIS.2012.99","DOIUrl":"https://doi.org/10.1109/ICCIS.2012.99","url":null,"abstract":"The borehole sloughing type of collapsing is very common in the drilling process. And this condition may result in drill string sticking and enlarged hole and induce other underground complex conditions, which may affect the successful drilling and underground safety. This thesis analyzes the elements resulting in borehole sloughing, components and properties of the drilling fluid system, and drilling engineering factors; and it proposes the niche targeting but feasible prevention measures of instability from components and properties of drilling fluid to drilling process and operation channels through elements analysis of borehole sloughing type of collapsing; in addition, the thesis describes the implementation of multiple coordination and comprehensive measures for valid prevention of such collapsing in actual drilling process.","PeriodicalId":269967,"journal":{"name":"2012 Fourth International Conference on Computational and Information Sciences","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133678539","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}
We present a technique for a crosstalk compensation of a multi-axis force and torque sensor. Multi-axis sensor generates coupled output signals inevitably because of the coupled structure or manufacturing errors. In order to minimize crosstalk in output signals, a compensation matrix which decouples the output signals is required. In this paper, the compensation matrix based on the least squares method will be derived. The LabVIEW is used in the experiment because the flexibility of LabVIEW makes the creation of user-friendly data acquisition (DAQ) programs and compensation algorithm. Finally, we will compare the performances of the multi-axis force/torque sensor before and after using compensation matrix in order to confirm the effect of this method.
{"title":"A Crosstalk Compensation of a Multi-axis ForceTorque Sensor Based on the Least Squares Method Using LabVIEW","authors":"Daewoong Hong, Chuan Li, Jaehwa Jeong","doi":"10.1109/ICCIS.2012.12","DOIUrl":"https://doi.org/10.1109/ICCIS.2012.12","url":null,"abstract":"We present a technique for a crosstalk compensation of a multi-axis force and torque sensor. Multi-axis sensor generates coupled output signals inevitably because of the coupled structure or manufacturing errors. In order to minimize crosstalk in output signals, a compensation matrix which decouples the output signals is required. In this paper, the compensation matrix based on the least squares method will be derived. The LabVIEW is used in the experiment because the flexibility of LabVIEW makes the creation of user-friendly data acquisition (DAQ) programs and compensation algorithm. Finally, we will compare the performances of the multi-axis force/torque sensor before and after using compensation matrix in order to confirm the effect of this method.","PeriodicalId":269967,"journal":{"name":"2012 Fourth International Conference on Computational and Information Sciences","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131777166","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}
Shuangyin Ren, Baoliang Li, Junhui Wang, Wenhua Dou, Chao Peng, Jiahui Sun, Lei He
Wormhole switching technology is widely used in High Performance Computer (HPC) systems. The delay estimation of wormhole switching is mainly focused on average packet delay. But in order to provide Quality of Service (QoS) guarantees, we should analyze the end-to-end delay bound of wormhole switching. Based on models of Credit Stall and Switch Allocation Stall, we use arrival curve to constrain the arrival flow, and service curve to describe the service ability which system can guarantee to the arrival flow. Together with some fundamental theorems in Deterministic Network Calculus, we give the delay upper bound of flows in 3D-Torus network.
{"title":"A Delay Estimation in HPC Wormhole Switching Based on Network Calculus","authors":"Shuangyin Ren, Baoliang Li, Junhui Wang, Wenhua Dou, Chao Peng, Jiahui Sun, Lei He","doi":"10.1109/ICCIS.2012.14","DOIUrl":"https://doi.org/10.1109/ICCIS.2012.14","url":null,"abstract":"Wormhole switching technology is widely used in High Performance Computer (HPC) systems. The delay estimation of wormhole switching is mainly focused on average packet delay. But in order to provide Quality of Service (QoS) guarantees, we should analyze the end-to-end delay bound of wormhole switching. Based on models of Credit Stall and Switch Allocation Stall, we use arrival curve to constrain the arrival flow, and service curve to describe the service ability which system can guarantee to the arrival flow. Together with some fundamental theorems in Deterministic Network Calculus, we give the delay upper bound of flows in 3D-Torus network.","PeriodicalId":269967,"journal":{"name":"2012 Fourth International Conference on Computational and Information Sciences","volume":"2018 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134539934","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 utilizes photographic surveying principle and uses digital camera to shoot and monitor the mine surface, and quickly collect mine spatial data. Based on the data, a 3D model of mine surface is built. The large scale maps of mine are made. Based on coordinates and 3D model in the period of different time, changes of mine surface are get obtained. The 3D model can help to get the shape of mine in time and test mine exploration and make adjustments based on the data.
{"title":"The Application of Digital Photogrammetry in Digital Information of Mine","authors":"Qun Zhao, Xiao Yan-Ma","doi":"10.1109/ICCIS.2012.315","DOIUrl":"https://doi.org/10.1109/ICCIS.2012.315","url":null,"abstract":"This paper utilizes photographic surveying principle and uses digital camera to shoot and monitor the mine surface, and quickly collect mine spatial data. Based on the data, a 3D model of mine surface is built. The large scale maps of mine are made. Based on coordinates and 3D model in the period of different time, changes of mine surface are get obtained. The 3D model can help to get the shape of mine in time and test mine exploration and make adjustments based on the data.","PeriodicalId":269967,"journal":{"name":"2012 Fourth International Conference on Computational and Information Sciences","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134543547","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 expansion force is one of the key parameters in Expansion Casing Technology. The expansion force is very difficulty to calculate by conventional methods because the expansion process of expansion casing is complex nonlinear elastic-plastic deforming. In this paper, the mechanical model of expansion casing is established by using of the main stress method, and the expansion force is calculated. The results provide theoretical grounds for the process design of the expansion casing technology.
{"title":"Calculation of Expansion Force for Expansion Casing","authors":"Yang Bin","doi":"10.1109/ICCIS.2012.98","DOIUrl":"https://doi.org/10.1109/ICCIS.2012.98","url":null,"abstract":"The expansion force is one of the key parameters in Expansion Casing Technology. The expansion force is very difficulty to calculate by conventional methods because the expansion process of expansion casing is complex nonlinear elastic-plastic deforming. In this paper, the mechanical model of expansion casing is established by using of the main stress method, and the expansion force is calculated. The results provide theoretical grounds for the process design of the expansion casing technology.","PeriodicalId":269967,"journal":{"name":"2012 Fourth International Conference on Computational and Information Sciences","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131690061","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 built the forecasting model that can predict the temperature, pressure and flow along natural gas pipeline according to pipe flow equations. Improved Euler method is used to solve these equations. The changes of gas velocity and temperature along pipeline are included to improve the accuracy and precision of the simulation. A MATLAB program has been developed to implement the algorithm. Comparisons between this program and the professional gas pipeline simulation software show that the proposed algorithm in this paper has higher accuracy.
{"title":"Steady-State Model and Its Application in Natural Gas during Transportation in Pipeline","authors":"Yan Hongdong, You Yun","doi":"10.1109/ICCIS.2012.291","DOIUrl":"https://doi.org/10.1109/ICCIS.2012.291","url":null,"abstract":"This paper built the forecasting model that can predict the temperature, pressure and flow along natural gas pipeline according to pipe flow equations. Improved Euler method is used to solve these equations. The changes of gas velocity and temperature along pipeline are included to improve the accuracy and precision of the simulation. A MATLAB program has been developed to implement the algorithm. Comparisons between this program and the professional gas pipeline simulation software show that the proposed algorithm in this paper has higher accuracy.","PeriodicalId":269967,"journal":{"name":"2012 Fourth International Conference on Computational and Information Sciences","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132409637","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}
Si-qing Sheng, Junsheng Li, Xin Wu, Lei Hou, L. Fan
As for the graphical modeling software of current domestic power system, it used mostly to be the stand-alone edition or based on C/S (client-server) mode. Compared with the B/S (browser/server) mode, there are some shortcomings in software installation, upgrade and maintenance. This paper aims at developing the graphical modeling software of power system, which is based on the B/S mode, making most use of the latest research result of on computer technology, web technology and Ajax technology. Then the software turns to be very suitable for power system's graphic modeling, meanwhile, it enable to greatly improve the designers' working efficiency, with and has some realistic and utilizing value.
{"title":"Design and Realization of the Graphic System of Power System Based on Browser/Server Model","authors":"Si-qing Sheng, Junsheng Li, Xin Wu, Lei Hou, L. Fan","doi":"10.1109/ICCIS.2012.123","DOIUrl":"https://doi.org/10.1109/ICCIS.2012.123","url":null,"abstract":"As for the graphical modeling software of current domestic power system, it used mostly to be the stand-alone edition or based on C/S (client-server) mode. Compared with the B/S (browser/server) mode, there are some shortcomings in software installation, upgrade and maintenance. This paper aims at developing the graphical modeling software of power system, which is based on the B/S mode, making most use of the latest research result of on computer technology, web technology and Ajax technology. Then the software turns to be very suitable for power system's graphic modeling, meanwhile, it enable to greatly improve the designers' working efficiency, with and has some realistic and utilizing value.","PeriodicalId":269967,"journal":{"name":"2012 Fourth International Conference on Computational and Information Sciences","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134379827","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}
Example-based interpolation is a powerful method to interpolate function from a set of input-output examples. In this paper, we argue that total three desirable properties should be satisfied so that the interpolated solution can cross all the given examples with minimal oscillations among the examples. We also show that, as long as the number of given examples exceeds the dimension of example and meanwhile there does not exist one hyper-plane, in real vector space of example's dimension, passing through all the given examples, one simple interpolated solution, which is expressed as a sum of two terms: an example-influence term that consists of the outputs of a number of basis functions, and a linear term, does allow all the three desirable properties to be satisfied exactly.
{"title":"A Simple Solution of Interpolating Scalar Function from Sparse Examples","authors":"Bodong Liang","doi":"10.1109/ICCIS.2012.46","DOIUrl":"https://doi.org/10.1109/ICCIS.2012.46","url":null,"abstract":"Example-based interpolation is a powerful method to interpolate function from a set of input-output examples. In this paper, we argue that total three desirable properties should be satisfied so that the interpolated solution can cross all the given examples with minimal oscillations among the examples. We also show that, as long as the number of given examples exceeds the dimension of example and meanwhile there does not exist one hyper-plane, in real vector space of example's dimension, passing through all the given examples, one simple interpolated solution, which is expressed as a sum of two terms: an example-influence term that consists of the outputs of a number of basis functions, and a linear term, does allow all the three desirable properties to be satisfied exactly.","PeriodicalId":269967,"journal":{"name":"2012 Fourth International Conference on Computational and Information Sciences","volume":"98 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131491472","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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