Pub Date : 2018-06-01DOI: 10.1109/ICIST.2018.8426114
Runze Ji, Nankun Mu, X. Liao
Recently, cloud storage is widely concerned due to the properties of low cost, advanced technology and efficient business model, and has been made a rapid development. However, as a new storage model, there are known security and privacy issues in migrating data to the cloud. Therefore, how to ensure the integrity and correctness of data storage is the main research direction and development of cloud storage technology. Moreover, the main purpose of the data integrity verification mechanism is to verify that the data is completely stored in the cloud server and is not modified maliciously or deleted. Sometimes the user can't perform data integrity verification for some reason, and the verification right need to be delegate to a third party auditor. In this paper, we proposed: (1) a new data integrity verification by partial delegation(PDIPD) is proposed, which delegates the remote data possession checking to a third party auditor. Compared with the existing data integrity verification scheme, the new scheme has less computational overhead and the flexibility at the same security level. (2) Extensive security analyses show this scheme is provable secure in random oracle. Estimating the cost of basic cryptographic and analyzing the experiment show, the proposed schemes are highly efficient and practical.
{"title":"A Novel Privacy-Preserving Data Integrity Verification by Partial Delegation","authors":"Runze Ji, Nankun Mu, X. Liao","doi":"10.1109/ICIST.2018.8426114","DOIUrl":"https://doi.org/10.1109/ICIST.2018.8426114","url":null,"abstract":"Recently, cloud storage is widely concerned due to the properties of low cost, advanced technology and efficient business model, and has been made a rapid development. However, as a new storage model, there are known security and privacy issues in migrating data to the cloud. Therefore, how to ensure the integrity and correctness of data storage is the main research direction and development of cloud storage technology. Moreover, the main purpose of the data integrity verification mechanism is to verify that the data is completely stored in the cloud server and is not modified maliciously or deleted. Sometimes the user can't perform data integrity verification for some reason, and the verification right need to be delegate to a third party auditor. In this paper, we proposed: (1) a new data integrity verification by partial delegation(PDIPD) is proposed, which delegates the remote data possession checking to a third party auditor. Compared with the existing data integrity verification scheme, the new scheme has less computational overhead and the flexibility at the same security level. (2) Extensive security analyses show this scheme is provable secure in random oracle. Estimating the cost of basic cryptographic and analyzing the experiment show, the proposed schemes are highly efficient and practical.","PeriodicalId":331555,"journal":{"name":"2018 Eighth International Conference on Information Science and Technology (ICIST)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130538051","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}
Pub Date : 2018-06-01DOI: 10.1109/ICIST.2018.8426165
Jianxin Yuan, Chengan Guo
Effective detection of concealed dangerous equipment is a critical need to protect people’ security in crowd public situations. Terahertz (THz) technology is ideally suited for such an application since it is able to see through clothing and packages, and, in addition, THz photons have lower energy than infrared and do not show the ionizing properties of X-ray radiation. There are two key technologies involved in this application: one is to develop THz imaging hardware and the other is to develop corresponding machine vision algorithms. In this paper we address to the latter and develop a deep learning-based method for detection and recognition of the dangerous equipment in THz images. The detection method is implemented with a two-stage classifier, in which the first-stage classifier is for detecting the direct visible dangerous equipment in natural light images, and the second-stage classifier is for detecting the concealed dangerous objects in THz images. In the detection system, when an input image is classified as a natural image, it is directly processed to give final classification result by the first-stage classifier. While the input image is classified as a THz image, it is sent to the second-stage classifier for finer processing and classification. Preliminary experiments conducted in the work show that the proposed method can give satisfactory performance in detection/recognition of dangerous equipment both in nature and THz images.
{"title":"A Deep Learning Method for Detection of Dangerous Equipment","authors":"Jianxin Yuan, Chengan Guo","doi":"10.1109/ICIST.2018.8426165","DOIUrl":"https://doi.org/10.1109/ICIST.2018.8426165","url":null,"abstract":"Effective detection of concealed dangerous equipment is a critical need to protect people’ security in crowd public situations. Terahertz (THz) technology is ideally suited for such an application since it is able to see through clothing and packages, and, in addition, THz photons have lower energy than infrared and do not show the ionizing properties of X-ray radiation. There are two key technologies involved in this application: one is to develop THz imaging hardware and the other is to develop corresponding machine vision algorithms. In this paper we address to the latter and develop a deep learning-based method for detection and recognition of the dangerous equipment in THz images. The detection method is implemented with a two-stage classifier, in which the first-stage classifier is for detecting the direct visible dangerous equipment in natural light images, and the second-stage classifier is for detecting the concealed dangerous objects in THz images. In the detection system, when an input image is classified as a natural image, it is directly processed to give final classification result by the first-stage classifier. While the input image is classified as a THz image, it is sent to the second-stage classifier for finer processing and classification. Preliminary experiments conducted in the work show that the proposed method can give satisfactory performance in detection/recognition of dangerous equipment both in nature and THz images.","PeriodicalId":331555,"journal":{"name":"2018 Eighth International Conference on Information Science and Technology (ICIST)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127698506","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}
Pub Date : 2018-06-01DOI: 10.1109/ICIST.2018.8426174
Yiming Cheng, Weiyang Sun, Tianhe Liu, Lin Zhang, Changhong Wang, Yuechao Ma
The paper is concerned with the H∞ filtering problems for a family of discrete-time systems. The measurement signals of the system are transmitted via a network, in which multiple communication channels coexist. It is considered that only one of these channels is active for the data communication at one time instant, and the switching of activated channel is governed by a Markov chain. In each channel, the practical phenomenon of packet dropouts is taken into account, and the packet dropout rates of different channels are different. With the construction of a Lyapunov function that depends on the index of the activated channel, stochastic stability and H∞ performance criteria are established, based on which a set of H∞ filters depending on the index of the activated channel are designed. In order to show the effectiveness of the designed H∞ filter, we apply the developed theoretical results to a numerical example.
{"title":"Design of Filters of Networked Systems via Multiple Channels Subject to Imperfect-Markov-Switching","authors":"Yiming Cheng, Weiyang Sun, Tianhe Liu, Lin Zhang, Changhong Wang, Yuechao Ma","doi":"10.1109/ICIST.2018.8426174","DOIUrl":"https://doi.org/10.1109/ICIST.2018.8426174","url":null,"abstract":"The paper is concerned with the H∞ filtering problems for a family of discrete-time systems. The measurement signals of the system are transmitted via a network, in which multiple communication channels coexist. It is considered that only one of these channels is active for the data communication at one time instant, and the switching of activated channel is governed by a Markov chain. In each channel, the practical phenomenon of packet dropouts is taken into account, and the packet dropout rates of different channels are different. With the construction of a Lyapunov function that depends on the index of the activated channel, stochastic stability and H∞ performance criteria are established, based on which a set of H∞ filters depending on the index of the activated channel are designed. In order to show the effectiveness of the designed H∞ filter, we apply the developed theoretical results to a numerical example.","PeriodicalId":331555,"journal":{"name":"2018 Eighth International Conference on Information Science and Technology (ICIST)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127904683","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}
Pub Date : 2018-06-01DOI: 10.1109/ICIST.2018.8426191
Liquan Xiao, Shukai Duan, Lidan Wang
Fractal theory is a leading and important branch of nonlinear science, which has been widely studied in many fields in the past few decades. Memristor is a nanoscale element with low power consumption and high integration, when it works as the nonlinear part in a chaotic system, the complexity of the chaotic system will be enhanced. Compared with single-scroll chaotic attractor, multi-scroll chaotic attractor have higher complexity and better adaptability. In this paper, the fractal process is applied to a known memristive chaotic system, which can generate multi-scroll chaotic attractor. At first, a fractal iteration is applied to the memristive chaotic system to generate new chaotic attractor. Secondly, the multi-scroll chaotic system is obtained by combining the Julia fractal and memristive chaotic system. And by changing a complex constant in the fractal process, a fractal graph with different shapes is obtained, which can also be used to generate different chaotic attractors in the generating multi-scroll memristive chaotic system. Compared with other multi-scroll chaotic attractors, the proposed multi-scroll chaotic attractors are easier to adjust the number of the scrolls. It can be seen from the simulation diagram that the size of the system phase diagram becomes smaller and smaller as the number of scrolls increases. The results show that the new system has a lot of dynamic characteristics.
{"title":"A Multi-Scroll Memristive Chaotic System via Fractal Process","authors":"Liquan Xiao, Shukai Duan, Lidan Wang","doi":"10.1109/ICIST.2018.8426191","DOIUrl":"https://doi.org/10.1109/ICIST.2018.8426191","url":null,"abstract":"Fractal theory is a leading and important branch of nonlinear science, which has been widely studied in many fields in the past few decades. Memristor is a nanoscale element with low power consumption and high integration, when it works as the nonlinear part in a chaotic system, the complexity of the chaotic system will be enhanced. Compared with single-scroll chaotic attractor, multi-scroll chaotic attractor have higher complexity and better adaptability. In this paper, the fractal process is applied to a known memristive chaotic system, which can generate multi-scroll chaotic attractor. At first, a fractal iteration is applied to the memristive chaotic system to generate new chaotic attractor. Secondly, the multi-scroll chaotic system is obtained by combining the Julia fractal and memristive chaotic system. And by changing a complex constant in the fractal process, a fractal graph with different shapes is obtained, which can also be used to generate different chaotic attractors in the generating multi-scroll memristive chaotic system. Compared with other multi-scroll chaotic attractors, the proposed multi-scroll chaotic attractors are easier to adjust the number of the scrolls. It can be seen from the simulation diagram that the size of the system phase diagram becomes smaller and smaller as the number of scrolls increases. The results show that the new system has a lot of dynamic characteristics.","PeriodicalId":331555,"journal":{"name":"2018 Eighth International Conference on Information Science and Technology (ICIST)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133340245","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}
Pub Date : 2018-06-01DOI: 10.1109/ICIST.2018.8426147
Jingqi Li, Tie-shan Li, Cheng Liu, Qiuyue Qin
In this paper, a local observer is designed for formation control of marine surface vessel. Sliding mode control is applied to follow the desired the formation of marine surface vessel and a local state observer is designed by Linear Matrix Inequation (LMI). The goal of formation control is to keep the relative position of each marine surface vessel in the formation given in the virtual formation reference point (FRP) path is given. For controller needs a good performance of external disturbance, the sliding mode control algorithm is used in the formation control of marine surface vessel. A local state observer scheme is designed in which the parameters of the observer are computed. Various simulations are given to illustrate the controller validity.
{"title":"Formation Control of Marine Surface Vessel Based on Sliding Mode Control and Local State Observer","authors":"Jingqi Li, Tie-shan Li, Cheng Liu, Qiuyue Qin","doi":"10.1109/ICIST.2018.8426147","DOIUrl":"https://doi.org/10.1109/ICIST.2018.8426147","url":null,"abstract":"In this paper, a local observer is designed for formation control of marine surface vessel. Sliding mode control is applied to follow the desired the formation of marine surface vessel and a local state observer is designed by Linear Matrix Inequation (LMI). The goal of formation control is to keep the relative position of each marine surface vessel in the formation given in the virtual formation reference point (FRP) path is given. For controller needs a good performance of external disturbance, the sliding mode control algorithm is used in the formation control of marine surface vessel. A local state observer scheme is designed in which the parameters of the observer are computed. Various simulations are given to illustrate the controller validity.","PeriodicalId":331555,"journal":{"name":"2018 Eighth International Conference on Information Science and Technology (ICIST)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121407505","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}
Pub Date : 2018-06-01DOI: 10.1109/ICIST.2018.8426159
Yu-Han Wang, C. Chung, Chung-Chi Lin, Chih-Ming Lin
Aging society leads more demands on health care system. Study shows that cardiovascular diseases are the most common and threatening diseases to the elderly. Moreover, more and more elderly live alone recently. Therefore, a total solution for elderly homecare leads the way. In this study, we develop smart clothes to record 3 lead electrocardiography (ECG). Our system consists of (1) the conductive fiber clothes with four electrodes to acquire physiological signals, (2) a gateway to digitize, process and upload raw data to the server, and (3) the service server to analyze data and make a health profile. The system had been applied to the elderly community to evaluate performance. The experiment results show the average accuracy of ECG data is 86.82%. Thirty-five volunteers (age > 65, 15 male and 20 female) feel the smart clothes comfortable and easy to use than the traditional medical device.
{"title":"The Study of the Electrocardiography Monitoring for the Elderly Based on Smart Clothes","authors":"Yu-Han Wang, C. Chung, Chung-Chi Lin, Chih-Ming Lin","doi":"10.1109/ICIST.2018.8426159","DOIUrl":"https://doi.org/10.1109/ICIST.2018.8426159","url":null,"abstract":"Aging society leads more demands on health care system. Study shows that cardiovascular diseases are the most common and threatening diseases to the elderly. Moreover, more and more elderly live alone recently. Therefore, a total solution for elderly homecare leads the way. In this study, we develop smart clothes to record 3 lead electrocardiography (ECG). Our system consists of (1) the conductive fiber clothes with four electrodes to acquire physiological signals, (2) a gateway to digitize, process and upload raw data to the server, and (3) the service server to analyze data and make a health profile. The system had been applied to the elderly community to evaluate performance. The experiment results show the average accuracy of ECG data is 86.82%. Thirty-five volunteers (age > 65, 15 male and 20 female) feel the smart clothes comfortable and easy to use than the traditional medical device.","PeriodicalId":331555,"journal":{"name":"2018 Eighth International Conference on Information Science and Technology (ICIST)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116225706","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}
Pub Date : 2018-06-01DOI: 10.1109/ICIST.2018.8426069
Yiming Jiang, Chenguang Yang, Zhaoiie Ju, Min Wang, Honghai Liu
In this paper, a null space controller is proposed to achieve a compliant motion behaviour of a redundant manipulator for a safety human-robot interaction. The robot end-effector is controlled using a prescribed performance controller, such that the transient tracking performance of the main task is guaranteed. The compliant behaviour of the robot motion is ensured by using a null space control law, by which the external torque acting on the main task can be projected to a null space and the effects of the external force can be reduced. The external torque is estimated and canceled by using an adaptive disturbance observer. Lyapunov synthesis illustrates the asymptotic stability of the robot system while simulation studies based on a 3-DOF planner robot show the effectiveness of the proposed control algorithm.
{"title":"Null Space Based Robot Compliant Control with Prescribed Motion Performance","authors":"Yiming Jiang, Chenguang Yang, Zhaoiie Ju, Min Wang, Honghai Liu","doi":"10.1109/ICIST.2018.8426069","DOIUrl":"https://doi.org/10.1109/ICIST.2018.8426069","url":null,"abstract":"In this paper, a null space controller is proposed to achieve a compliant motion behaviour of a redundant manipulator for a safety human-robot interaction. The robot end-effector is controlled using a prescribed performance controller, such that the transient tracking performance of the main task is guaranteed. The compliant behaviour of the robot motion is ensured by using a null space control law, by which the external torque acting on the main task can be projected to a null space and the effects of the external force can be reduced. The external torque is estimated and canceled by using an adaptive disturbance observer. Lyapunov synthesis illustrates the asymptotic stability of the robot system while simulation studies based on a 3-DOF planner robot show the effectiveness of the proposed control algorithm.","PeriodicalId":331555,"journal":{"name":"2018 Eighth International Conference on Information Science and Technology (ICIST)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115800743","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}
Pub Date : 2018-06-01DOI: 10.1109/ICIST.2018.8426129
Li Li, H. Ge, Jianqiang Gao, Yixin Zhang
In hyperspectral image classification, many of the existing feature extraction methods using spectral information have aroused extensively attention. However, it is difficult to characterize the geometric properties of the spectral response curves (SRCs) only depending on the spectral information. A novel feature extraction method using Maclaurin series function curve fitting was proposed in this paper. The new features for each spectral response curve of hyperspectral image pixels can be reconstructed through curve fitting. Then, the coefficients of the fitted Maclaurin series function are considered as extracted features that can better capture the intrinsic geometrical nature of spectral response curves. The proposed method concentrates on the reflectance coefficients information commendably that has not been addressed by lots of other analysis methods. The proposed method shows better superiority compared to conventional feature extraction methods when a maximum likelihood classifier (MLC) is used in hyperspectral image dataset Indian Pines.
{"title":"A Novel Curve Fitting Feature Extraction Method for Hyperspectral Image","authors":"Li Li, H. Ge, Jianqiang Gao, Yixin Zhang","doi":"10.1109/ICIST.2018.8426129","DOIUrl":"https://doi.org/10.1109/ICIST.2018.8426129","url":null,"abstract":"In hyperspectral image classification, many of the existing feature extraction methods using spectral information have aroused extensively attention. However, it is difficult to characterize the geometric properties of the spectral response curves (SRCs) only depending on the spectral information. A novel feature extraction method using Maclaurin series function curve fitting was proposed in this paper. The new features for each spectral response curve of hyperspectral image pixels can be reconstructed through curve fitting. Then, the coefficients of the fitted Maclaurin series function are considered as extracted features that can better capture the intrinsic geometrical nature of spectral response curves. The proposed method concentrates on the reflectance coefficients information commendably that has not been addressed by lots of other analysis methods. The proposed method shows better superiority compared to conventional feature extraction methods when a maximum likelihood classifier (MLC) is used in hyperspectral image dataset Indian Pines.","PeriodicalId":331555,"journal":{"name":"2018 Eighth International Conference on Information Science and Technology (ICIST)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125298783","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}
Pub Date : 2018-06-01DOI: 10.1109/ICIST.2018.8426116
Li Li, Liang Chang, Pingshan Liu, Bonan Yu
The optimal scheduling of hydro power can increase the power generation and other benefits without increasing the existing equipment and investment. Most of the existing reservoir dispatching is aimed at several unified power stations in the same river basin, and it is difficult to carry out joint scheduling for those who belong to different owner of power stations in the same basin. In view of the above challenges, with the analysis of the coupling relationship among the owners in the basin, the idea of multi-objective optimization is adopted to handle this issue. With the goal of maximizing the power benefits in the whole basin, an optimal scheduling model of multi-owner is proposed, in which multiple owners are optimized simultaneously as the objectives. Taking some reservoirs and power stations in the Lushuihe River in Jiangxi Province as a case study, the simulation results show that the proposed model and algorithm have certain application value, which can better solve the optimal dispatching of multi-owners in the basin with the increasing the power benefit, and can even achieve storage and peak regulation without loss of power generation. It provides a new idea for cascade joint optimization.
{"title":"Multi-Owner Scheduling for Cascade Hydro Power Using Multi-Objective Optimization Technique","authors":"Li Li, Liang Chang, Pingshan Liu, Bonan Yu","doi":"10.1109/ICIST.2018.8426116","DOIUrl":"https://doi.org/10.1109/ICIST.2018.8426116","url":null,"abstract":"The optimal scheduling of hydro power can increase the power generation and other benefits without increasing the existing equipment and investment. Most of the existing reservoir dispatching is aimed at several unified power stations in the same river basin, and it is difficult to carry out joint scheduling for those who belong to different owner of power stations in the same basin. In view of the above challenges, with the analysis of the coupling relationship among the owners in the basin, the idea of multi-objective optimization is adopted to handle this issue. With the goal of maximizing the power benefits in the whole basin, an optimal scheduling model of multi-owner is proposed, in which multiple owners are optimized simultaneously as the objectives. Taking some reservoirs and power stations in the Lushuihe River in Jiangxi Province as a case study, the simulation results show that the proposed model and algorithm have certain application value, which can better solve the optimal dispatching of multi-owners in the basin with the increasing the power benefit, and can even achieve storage and peak regulation without loss of power generation. It provides a new idea for cascade joint optimization.","PeriodicalId":331555,"journal":{"name":"2018 Eighth International Conference on Information Science and Technology (ICIST)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125377382","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}
Pub Date : 2018-06-01DOI: 10.1109/ICIST.2018.8426131
S. Maini, Dilip Singh Shekhawat
Microwave ablation (MWA) is most promising treatment of hepatocellular carcinoma with low complications. Microwave antennas are critical as well as integral element of MWA. In the present paper 3-D commercial CST Microwave Studio has been used to simulate the new antenna named as Copper Tube Sleeve Coaxial Spiral Antenna. The copper tube not only chokes the current on outers conductor surface which leads to good impedance matching and better specific absorption rate but also gives strength to the antenna so that it can be easily introduced into the tissues through biopsy needles. The antenna results has been designed and optimized with lower reflection coefficient. The simulation results shown optimal S11 of −37.19 dB at 2.45 GHz, with 99.9% power absorption by the liver tissue with average cell mass of 0.000849734 gram with averaging mass of liver tissue 10 gram and larger ablation zone.
{"title":"Analysis of Copper Tube Sleeve Coaxial Spiral Antenna for Interstitial Hepatic Microwave Ablation","authors":"S. Maini, Dilip Singh Shekhawat","doi":"10.1109/ICIST.2018.8426131","DOIUrl":"https://doi.org/10.1109/ICIST.2018.8426131","url":null,"abstract":"Microwave ablation (MWA) is most promising treatment of hepatocellular carcinoma with low complications. Microwave antennas are critical as well as integral element of MWA. In the present paper 3-D commercial CST Microwave Studio has been used to simulate the new antenna named as Copper Tube Sleeve Coaxial Spiral Antenna. The copper tube not only chokes the current on outers conductor surface which leads to good impedance matching and better specific absorption rate but also gives strength to the antenna so that it can be easily introduced into the tissues through biopsy needles. The antenna results has been designed and optimized with lower reflection coefficient. The simulation results shown optimal S11 of −37.19 dB at 2.45 GHz, with 99.9% power absorption by the liver tissue with average cell mass of 0.000849734 gram with averaging mass of liver tissue 10 gram and larger ablation zone.","PeriodicalId":331555,"journal":{"name":"2018 Eighth International Conference on Information Science and Technology (ICIST)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126198995","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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