Pub Date : 2013-12-01DOI: 10.1109/INDCON.2013.6725958
M. Geethanjali, L. D. S. V. Shamanthan, K. S. Krishnan, G. Raji
Human negligence and human error have become the primary cause for train accidents in India. The objective of the paper is to eliminate train accidents by exploiting surveillance. Each locomotive is equipped with an automated surveillance system. The train tracks in railway network are segmented and given with distinct track numbers which are read by surveillance system inside the locomotive. This track number will be shared with neighbour trains using Radio Frequency Communication by the surveillance system. The system then compares its track number with neighbour train track numbers. On locating same track numbers, steps are taken by the surveillance system to caution the concerned motorman in order to stop the train and avoid mishaps. The paper proposes specific way of numbering the train tracks in segments. Also a communication protocol is proposed to ensure data transfer among Radio Frequency transceivers of the systems under half duplex mode.
{"title":"RF based train collision avoidance system","authors":"M. Geethanjali, L. D. S. V. Shamanthan, K. S. Krishnan, G. Raji","doi":"10.1109/INDCON.2013.6725958","DOIUrl":"https://doi.org/10.1109/INDCON.2013.6725958","url":null,"abstract":"Human negligence and human error have become the primary cause for train accidents in India. The objective of the paper is to eliminate train accidents by exploiting surveillance. Each locomotive is equipped with an automated surveillance system. The train tracks in railway network are segmented and given with distinct track numbers which are read by surveillance system inside the locomotive. This track number will be shared with neighbour trains using Radio Frequency Communication by the surveillance system. The system then compares its track number with neighbour train track numbers. On locating same track numbers, steps are taken by the surveillance system to caution the concerned motorman in order to stop the train and avoid mishaps. The paper proposes specific way of numbering the train tracks in segments. Also a communication protocol is proposed to ensure data transfer among Radio Frequency transceivers of the systems under half duplex mode.","PeriodicalId":313185,"journal":{"name":"2013 Annual IEEE India Conference (INDICON)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114127278","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 : 2013-12-01DOI: 10.1109/INDCON.2013.6726018
Shiburaj Pappu, K. Talele, K. Mehul
Scheduling & Optimization problems are iterative in nature. To find a ideal solution to which is a complex task. These types of problems may be effectively solved and optimal solutions which may be close to the ideal solution may be derived with the help of evolutionary algorithms like the Genetic Algorithm. This paper introduces a new variant of genetic algorithm called Modified Enhanced Steady State Genetic Algorithm (MESSGA) which uses Fuzzy Logic on crossover probability, mutation probability and insertion, for better convergence time. The results of this paper are studied on a common scheduling problem faced by all universities to assign externals for viva-vose or examination to other colleges under its jurisdiction.
{"title":"Modified enhanced steady state genetic algorithm for Scheduling & Optimization problems","authors":"Shiburaj Pappu, K. Talele, K. Mehul","doi":"10.1109/INDCON.2013.6726018","DOIUrl":"https://doi.org/10.1109/INDCON.2013.6726018","url":null,"abstract":"Scheduling & Optimization problems are iterative in nature. To find a ideal solution to which is a complex task. These types of problems may be effectively solved and optimal solutions which may be close to the ideal solution may be derived with the help of evolutionary algorithms like the Genetic Algorithm. This paper introduces a new variant of genetic algorithm called Modified Enhanced Steady State Genetic Algorithm (MESSGA) which uses Fuzzy Logic on crossover probability, mutation probability and insertion, for better convergence time. The results of this paper are studied on a common scheduling problem faced by all universities to assign externals for viva-vose or examination to other colleges under its jurisdiction.","PeriodicalId":313185,"journal":{"name":"2013 Annual IEEE India Conference (INDICON)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126603500","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 : 2013-12-01DOI: 10.1109/INDCON.2013.6726117
Karam Singh, S. Ahamed
Motion estimation (ME) is one of the most important and complex block of all the existing video coding standards. In H.264/AVC video coding standard ME process is much more complex due to variable block size with quarter pixel accuracy. In this paper, we proposed a modified small-cross diamond search (MSCDS) motion estimation algorithm for H.264/AVC video coding standard. The proposed algorithm reduces the number of checking points and thereby makes the motion estimation process faster. Moreover, the MSCDS algorithm is suitable for stationary, quasi-stationary and fast moving video sequences and computationally less complex from hardware point of view. Simulation results show that the proposed algorithm requires very few number of search points for finding the best matched block with almost negligible loss in video quality. As compared to the fastest existing ME algorithm, proposed algorithm requires 9.02% less number of search points with 0.007 dB loss in PSNR.
{"title":"Modified small-cross diamond search motion estimation algorithm for H.264/AVC","authors":"Karam Singh, S. Ahamed","doi":"10.1109/INDCON.2013.6726117","DOIUrl":"https://doi.org/10.1109/INDCON.2013.6726117","url":null,"abstract":"Motion estimation (ME) is one of the most important and complex block of all the existing video coding standards. In H.264/AVC video coding standard ME process is much more complex due to variable block size with quarter pixel accuracy. In this paper, we proposed a modified small-cross diamond search (MSCDS) motion estimation algorithm for H.264/AVC video coding standard. The proposed algorithm reduces the number of checking points and thereby makes the motion estimation process faster. Moreover, the MSCDS algorithm is suitable for stationary, quasi-stationary and fast moving video sequences and computationally less complex from hardware point of view. Simulation results show that the proposed algorithm requires very few number of search points for finding the best matched block with almost negligible loss in video quality. As compared to the fastest existing ME algorithm, proposed algorithm requires 9.02% less number of search points with 0.007 dB loss in PSNR.","PeriodicalId":313185,"journal":{"name":"2013 Annual IEEE India Conference (INDICON)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131281186","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 : 2013-12-01DOI: 10.1109/INDCON.2013.6725952
U. Datta, P. K. Sahu, S. Kundu
Energy conservation is one of the most important issues in wireless ad hoc and sensor networks, where nodes are likely to rely on limited battery power. This paper analyzes the performance of a CDMA WSN, in terms of lifetime of the network, where nodes are placed in a random fashion. A routing protocol is proposed and simulated where selection of intermediate nodes is governed by a parameter which combines the estimation of detection probability of neighbors in presence of large scale fading, and maximum advanced distance with respect to the final destination. Further, the proposed routing scheme is modified by incorporating route diversity. Lifetimes are analyzed in both the cases and compared. Effects of detection probability, shadowing, and route diversity on lifetime are investigated.
{"title":"Lifetime of a CDMA wireless sensor network with route diversity","authors":"U. Datta, P. K. Sahu, S. Kundu","doi":"10.1109/INDCON.2013.6725952","DOIUrl":"https://doi.org/10.1109/INDCON.2013.6725952","url":null,"abstract":"Energy conservation is one of the most important issues in wireless ad hoc and sensor networks, where nodes are likely to rely on limited battery power. This paper analyzes the performance of a CDMA WSN, in terms of lifetime of the network, where nodes are placed in a random fashion. A routing protocol is proposed and simulated where selection of intermediate nodes is governed by a parameter which combines the estimation of detection probability of neighbors in presence of large scale fading, and maximum advanced distance with respect to the final destination. Further, the proposed routing scheme is modified by incorporating route diversity. Lifetimes are analyzed in both the cases and compared. Effects of detection probability, shadowing, and route diversity on lifetime are investigated.","PeriodicalId":313185,"journal":{"name":"2013 Annual IEEE India Conference (INDICON)","volume":"43 11","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114023579","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 : 2013-12-01DOI: 10.1109/INDCON.2013.6726110
D. Roy, R. Chaki
Mobile ad hoc networks are highly vulnerable to attacks due to infrastructure less environment. The features of MANETs are like open media, dynamic changes in topology, cooperative and collaborative algorithm and no centralized monitoring system. These features make the network more prone to malicious attack. The traditional way of protecting networks with firewalls and encryption software is no longer sufficient and effective for those features. In this paper, we present a new cluster based intrusion detection algorithm that takes care of black hole attacks in a MANET. This proposed algorithm is based on trustworthiness of the nodes in a network. The network is considered to be a layered structured. The nodes are member of a cluster. Each cluster has cluster head that takes care of all the members of its own cluster and communicates with cluster head at layer 2 whenever required. The cluster head at layer 2 communicate with all cluster head at layer 1. The selection of cluster head depends on three parameters battery power, mobility and trust value of a node in a cluster. Periodically the cluster head updation is done according to three parameters. We have implemented our algorithm using the NS simulator. The performance of the proposed Intrusion Detection System (IDS) has also been evaluated in the process. The performance graph shows marked improvement as far as packet dropping is concerned.
{"title":"MCBHIDS: Modified layered cluster based algorithm for black hole IDS","authors":"D. Roy, R. Chaki","doi":"10.1109/INDCON.2013.6726110","DOIUrl":"https://doi.org/10.1109/INDCON.2013.6726110","url":null,"abstract":"Mobile ad hoc networks are highly vulnerable to attacks due to infrastructure less environment. The features of MANETs are like open media, dynamic changes in topology, cooperative and collaborative algorithm and no centralized monitoring system. These features make the network more prone to malicious attack. The traditional way of protecting networks with firewalls and encryption software is no longer sufficient and effective for those features. In this paper, we present a new cluster based intrusion detection algorithm that takes care of black hole attacks in a MANET. This proposed algorithm is based on trustworthiness of the nodes in a network. The network is considered to be a layered structured. The nodes are member of a cluster. Each cluster has cluster head that takes care of all the members of its own cluster and communicates with cluster head at layer 2 whenever required. The cluster head at layer 2 communicate with all cluster head at layer 1. The selection of cluster head depends on three parameters battery power, mobility and trust value of a node in a cluster. Periodically the cluster head updation is done according to three parameters. We have implemented our algorithm using the NS simulator. The performance of the proposed Intrusion Detection System (IDS) has also been evaluated in the process. The performance graph shows marked improvement as far as packet dropping is concerned.","PeriodicalId":313185,"journal":{"name":"2013 Annual IEEE India Conference (INDICON)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122367303","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 : 2013-12-01DOI: 10.1109/INDCON.2013.6726089
Solwin Johnson, Arun A. Balakrishnan
In this paper, a new denoising and contrast enhancement method for DTI is proposed. Noise removal is given priority in existing denoising methods. In order to increase the visibility of structural details, contrast enhancement methods has to be used. In proposed method, a non-linear adaptive Gaussian denoising filter removes noises from the DTI. To increase the visibility of filtered micro structural details, a contrast enhancement method is also used. The proposed method is compared with the existing scalar Partial Differential Equation (PDE) and non local means (NLM) denoising methods. Quantitative measures are used for validating the efficiency of the proposed contrast enhancement method. The experiment results shows that the proposed method outperforms the scalar PDE method and NLM method.
{"title":"Contrast enhancement based denoising method in diffusion tensor imaging","authors":"Solwin Johnson, Arun A. Balakrishnan","doi":"10.1109/INDCON.2013.6726089","DOIUrl":"https://doi.org/10.1109/INDCON.2013.6726089","url":null,"abstract":"In this paper, a new denoising and contrast enhancement method for DTI is proposed. Noise removal is given priority in existing denoising methods. In order to increase the visibility of structural details, contrast enhancement methods has to be used. In proposed method, a non-linear adaptive Gaussian denoising filter removes noises from the DTI. To increase the visibility of filtered micro structural details, a contrast enhancement method is also used. The proposed method is compared with the existing scalar Partial Differential Equation (PDE) and non local means (NLM) denoising methods. Quantitative measures are used for validating the efficiency of the proposed contrast enhancement method. The experiment results shows that the proposed method outperforms the scalar PDE method and NLM method.","PeriodicalId":313185,"journal":{"name":"2013 Annual IEEE India Conference (INDICON)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123053495","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 : 2013-12-01DOI: 10.1109/INDCON.2013.6725855
Chetan K. Lad, R. Chudamani
Determination of commutation instant is essential for the control of brushless DC motor (BLDC) drive. Conventionally hall sensors have been used to derive commutation instants. Use of position sensors has its own merits and demerits. In order to overcome the limitations of position sensor based drives, sensorless techniques are used for control of BLDC motor. The detection of the zero-crossing of the back-EMF is a widely used method for sensorless control. The commutation instants are derived from the information of zero crossing point of the back EMF. Several algorithms have been proposed in literature for the detection of back EMF zero crossing. In this paper a novel method for determining the commutation instants directly from the comparison of the line-to-line voltages and their difference voltages is presented. The performance of the BLDC drive with the proposed algorithm is studied and verified through simulation done in MATLAB/SIMULINK environment.
{"title":"Sensorless brushless DC motor drive based on commutation instants derived from the line voltages and line voltage differences","authors":"Chetan K. Lad, R. Chudamani","doi":"10.1109/INDCON.2013.6725855","DOIUrl":"https://doi.org/10.1109/INDCON.2013.6725855","url":null,"abstract":"Determination of commutation instant is essential for the control of brushless DC motor (BLDC) drive. Conventionally hall sensors have been used to derive commutation instants. Use of position sensors has its own merits and demerits. In order to overcome the limitations of position sensor based drives, sensorless techniques are used for control of BLDC motor. The detection of the zero-crossing of the back-EMF is a widely used method for sensorless control. The commutation instants are derived from the information of zero crossing point of the back EMF. Several algorithms have been proposed in literature for the detection of back EMF zero crossing. In this paper a novel method for determining the commutation instants directly from the comparison of the line-to-line voltages and their difference voltages is presented. The performance of the BLDC drive with the proposed algorithm is studied and verified through simulation done in MATLAB/SIMULINK environment.","PeriodicalId":313185,"journal":{"name":"2013 Annual IEEE India Conference (INDICON)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123964525","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 : 2013-12-01DOI: 10.1109/INDCON.2013.6725969
B. Rao, K. Vaisakh
This paper presents an artificial immune system (AIS) based adaptive clonal selection algorithm (ACSA) to solve combined economic emission dispatch (EED) problem of thermal units in power system. In this work different emission substances like NOX and SOX are considered along with power demand equality constraints and thermal unit operating limits. The clonal selection principle is one of the models used to incorporate the behaviour of the AIS. The biological principles like clone generation, proliferation and maturation are mimicked and incorporated into this algorithm. In order to find and manage the pareto optimal set a non dominated sorting technique and crowding distance measure have been used. The proposed multi-objective ACSA (MOACSA) method has been tested on two different test systems and the results are compared with other methods reported in literature.
{"title":"Adaptive clonal selection algorithm for solving OPF problem with emission constraints","authors":"B. Rao, K. Vaisakh","doi":"10.1109/INDCON.2013.6725969","DOIUrl":"https://doi.org/10.1109/INDCON.2013.6725969","url":null,"abstract":"This paper presents an artificial immune system (AIS) based adaptive clonal selection algorithm (ACSA) to solve combined economic emission dispatch (EED) problem of thermal units in power system. In this work different emission substances like NOX and SOX are considered along with power demand equality constraints and thermal unit operating limits. The clonal selection principle is one of the models used to incorporate the behaviour of the AIS. The biological principles like clone generation, proliferation and maturation are mimicked and incorporated into this algorithm. In order to find and manage the pareto optimal set a non dominated sorting technique and crowding distance measure have been used. The proposed multi-objective ACSA (MOACSA) method has been tested on two different test systems and the results are compared with other methods reported in literature.","PeriodicalId":313185,"journal":{"name":"2013 Annual IEEE India Conference (INDICON)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127760747","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 : 2013-12-01DOI: 10.1109/INDCON.2013.6726150
Milind Fernandes, Aniket Bhandare, Chetan Dessai, H. Virani
In this paper a Switched beam 4×1 linear antenna array is presented with a 4×4 Butler matrix feed. For wideband operation Aperture coupled antenna elements are used in the array whereas wideband Hybrid couplers and Cross Couplers are used in the Butler Matrix feed. Design and Simulations are carried out in IE3D software considering a low cost FR4 substrate. The array is designed to cover LTE bands at 2.3 & 2.6GHz as well as the 2.4GHz ISM band. The performance parameters from simulation and measurements are presented and analyzed. A total 1:1.3 VSWR bandwidth of 400MHz is obtained with gain between 6-7.5dB, directivity of ~12dBi and Efficiency greater than 30%. The radiation beam directions in azimuth are obtained at +15, -15, +45 and -45° for respective input port.
{"title":"A wideband switched beam patch antenna array for LTE and Wi-Fi","authors":"Milind Fernandes, Aniket Bhandare, Chetan Dessai, H. Virani","doi":"10.1109/INDCON.2013.6726150","DOIUrl":"https://doi.org/10.1109/INDCON.2013.6726150","url":null,"abstract":"In this paper a Switched beam 4×1 linear antenna array is presented with a 4×4 Butler matrix feed. For wideband operation Aperture coupled antenna elements are used in the array whereas wideband Hybrid couplers and Cross Couplers are used in the Butler Matrix feed. Design and Simulations are carried out in IE3D software considering a low cost FR4 substrate. The array is designed to cover LTE bands at 2.3 & 2.6GHz as well as the 2.4GHz ISM band. The performance parameters from simulation and measurements are presented and analyzed. A total 1:1.3 VSWR bandwidth of 400MHz is obtained with gain between 6-7.5dB, directivity of ~12dBi and Efficiency greater than 30%. The radiation beam directions in azimuth are obtained at +15, -15, +45 and -45° for respective input port.","PeriodicalId":313185,"journal":{"name":"2013 Annual IEEE India Conference (INDICON)","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128993231","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 : 2013-12-01DOI: 10.1109/INDCON.2013.6725901
Sonal Singh, R. Negi, B. Pratap
This paper investigates the nonlinear controller design of a half car suspension system. The half car suspension system is a multiple-input-multiple-output (MIMO) nonlinear system. The proposed controller design is based on a feedback linearization method. Its prime goal is the coordinated control of ride quality and handling performance which are nowadays challenging for suspension systems, for the applications on unpaved roads. The tracking performance of the proposed control technique in the presence of the deterministic road disturbance has been illustrated using simulation results.
{"title":"Nonlinear feedback linearization controller design for half car suspension system","authors":"Sonal Singh, R. Negi, B. Pratap","doi":"10.1109/INDCON.2013.6725901","DOIUrl":"https://doi.org/10.1109/INDCON.2013.6725901","url":null,"abstract":"This paper investigates the nonlinear controller design of a half car suspension system. The half car suspension system is a multiple-input-multiple-output (MIMO) nonlinear system. The proposed controller design is based on a feedback linearization method. Its prime goal is the coordinated control of ride quality and handling performance which are nowadays challenging for suspension systems, for the applications on unpaved roads. The tracking performance of the proposed control technique in the presence of the deterministic road disturbance has been illustrated using simulation results.","PeriodicalId":313185,"journal":{"name":"2013 Annual IEEE India Conference (INDICON)","volume":"80 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116369140","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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