Performance test on a model of a Pelton turbine has been carried out in the laboratory for various gate opening of the turbine. The parameters have been expressed in the term of unit quantities. The result show that the peak efficiency lies between 70% and 90% of the full load. The maximum efficiency and power obtained at Nu =135, whereas maximum efficiency obtained is 66% at 90% wicket gate opening, Predicted result based on the modal study for a prototype obtained is within the specified limit.
{"title":"Performance Analysis for an Impulse Turbine – A Case Study","authors":"A. Singh, S. Barman, S. Shaw, P. K. Sinha","doi":"10.9790/9622-0707042630","DOIUrl":"https://doi.org/10.9790/9622-0707042630","url":null,"abstract":"Performance test on a model of a Pelton turbine has been carried out in the laboratory for various gate opening of the turbine. The parameters have been expressed in the term of unit quantities. The result show that the peak efficiency lies between 70% and 90% of the full load. The maximum efficiency and power obtained at Nu =135, whereas maximum efficiency obtained is 66% at 90% wicket gate opening, Predicted result based on the modal study for a prototype obtained is within the specified limit.","PeriodicalId":13972,"journal":{"name":"International Journal of Engineering Research and Applications","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85844095","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 aim of the work was to increase the productivity of workers. The various independent parameters like BMI, Buttock-Knee length, Popliteal Height, Seat base height, back rest support height, and room temperature during deburring process of mat was investigated and also finds out influence parameter on productivity of worker. Considering these parameters the two important aspects to be considered are productivity of human workers along with the comforts to the workers. We would like to find out which parameter is most important for increasing the productivity. The focus of this paper is to develop a Multivariable Linear Regression and Artificial Neural Network models which will predict the experimental evidences accurately. It was observed that the ANN model predict the productivity with correlation coefficient (R) 0.9412. The prediction Mean Square Error was between the desired outputs as measured values and the simulated values were obtained as 0.5009 by the model.
{"title":"Experimental Investigation and Formulation of Model of Deburring Process of Mat Manufacturing","authors":"P. Damle, V. P. Wani, I. D. Patil, A. Nikalje","doi":"10.9790/9622-0706070913","DOIUrl":"https://doi.org/10.9790/9622-0706070913","url":null,"abstract":"The aim of the work was to increase the productivity of workers. The various independent parameters like BMI, Buttock-Knee length, Popliteal Height, Seat base height, back rest support height, and room temperature during deburring process of mat was investigated and also finds out influence parameter on productivity of worker. Considering these parameters the two important aspects to be considered are productivity of human workers along with the comforts to the workers. We would like to find out which parameter is most important for increasing the productivity. The focus of this paper is to develop a Multivariable Linear Regression and Artificial Neural Network models which will predict the experimental evidences accurately. It was observed that the ANN model predict the productivity with correlation coefficient (R) 0.9412. The prediction Mean Square Error was between the desired outputs as measured values and the simulated values were obtained as 0.5009 by the model.","PeriodicalId":13972,"journal":{"name":"International Journal of Engineering Research and Applications","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78668984","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}
In the present work, a raft supported on a centrally located pile has been analyzed by through a Finite Element Model to predict the interaction behavior pile-raft and soil in piled raft foundation composite. Attempt has been made to study the effects of soil modulus, raft to pile width ratio, pile slenderness ratio and raft thickness on load sharing characteristics of piled raft foundation. Analysis showed an increase in axial load on pile with higher pile slenderness ratio for a fixed raft to pile width ratio. Whereas, higher raft thickness does not show much effect on load sharing. Side resistance along the pile length increased up to the critical depth of pile. Radius of influence of pile also seems to higher for higher pile slenderness ratios for a thinner raft.
{"title":"Pile-Raft-Soil Interaction Study by Finite Element Analysis","authors":"Soumya Roy","doi":"10.9790/9622-0706070105","DOIUrl":"https://doi.org/10.9790/9622-0706070105","url":null,"abstract":"In the present work, a raft supported on a centrally located pile has been analyzed by through a Finite Element Model to predict the interaction behavior pile-raft and soil in piled raft foundation composite. Attempt has been made to study the effects of soil modulus, raft to pile width ratio, pile slenderness ratio and raft thickness on load sharing characteristics of piled raft foundation. Analysis showed an increase in axial load on pile with higher pile slenderness ratio for a fixed raft to pile width ratio. Whereas, higher raft thickness does not show much effect on load sharing. Side resistance along the pile length increased up to the critical depth of pile. Radius of influence of pile also seems to higher for higher pile slenderness ratios for a thinner raft.","PeriodicalId":13972,"journal":{"name":"International Journal of Engineering Research and Applications","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76367684","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}
In wireless sensor networks and other engineering systems, there are situations wherein some delays occur in data transmission and some measurements might be randomly missing. This would cause inaccuracies in Kalman filter or its equivalent algorithms, when used for target tracking. In this paper four alternative algorithms are studied and the modifications to include the state delay and randomly missing measurements are provided. Especially:i) the gain fusion, H-infinity a posteriori, H-infinity risk sensitive filter, and H-infinity global filtering algorithms are modified, and evaluated for sensor data fusion scenario using numerical simulations carried out in MATLAB; and ii) a nonlinear observer based on the continuous time data fusion filter is presented, and asymptotic convergence result is derived using Lyapunov energy functional; these two aspects are the novel contribution of this paper.
{"title":"Data Fusion Algorithms with State Delay and Missing Measurements","authors":"N. Shivashankarappa, Raol J. R","doi":"10.9790/9622-0706066268","DOIUrl":"https://doi.org/10.9790/9622-0706066268","url":null,"abstract":"In wireless sensor networks and other engineering systems, there are situations wherein some delays occur in data transmission and some measurements might be randomly missing. This would cause inaccuracies in Kalman filter or its equivalent algorithms, when used for target tracking. In this paper four alternative algorithms are studied and the modifications to include the state delay and randomly missing measurements are provided. Especially:i) the gain fusion, H-infinity a posteriori, H-infinity risk sensitive filter, and H-infinity global filtering algorithms are modified, and evaluated for sensor data fusion scenario using numerical simulations carried out in MATLAB; and ii) a nonlinear observer based on the continuous time data fusion filter is presented, and asymptotic convergence result is derived using Lyapunov energy functional; these two aspects are the novel contribution of this paper.","PeriodicalId":13972,"journal":{"name":"International Journal of Engineering Research and Applications","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88808378","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}
Porosity and permeability are the two most important of reservoir rock characteristics particularly in sandstones. They are controlled by rock fabric, mineralogical composition, diagenetic evolution, etc. To address the unknowns, this investigation examined 98 of core, core plug and side wall core samples taken from oil fields of block 15-2 in Cuu Long basin. The samples were analyzed via thin section, Scanning electron microscope (SEM), X-ray diffraction (XRD) and measured helium porosity and Klinkenberg permeability. The results showed that most of sandstones in sequences BH1.2 and C1 are arkose and lithic arkose and sporadically interbedded by feldspathic greywacke and carbonate cemented sandstones while feldspathic greywacke and zeolite cemented sandstones are commonly present in sequences D1 and E1. The clean sandstones with moderately-well grain sorting have higher porosities and permeable abilities than the very poorly-poorly sorted sandstones. The medium-coarse grained sandstones have a higher porosity and permeability than the very finefine grained sandstones. The diagenetic processes of sandstones are progressively growing with the increasing burial depth as smectite transfers into illite and the amount of illite tends to increase while kaolinite reduces and transfers into dickite. Feldspars and lithic fragments are highly leached and sandstones are heavily restricted by cementation and compaction at deeper. The grain sorting, grain size, compaction and cementation cause to decrease the porosity and permeability of the sandstones. Additionally, clay minerals as illite and chlorite have a negative effect and cause highly decreasing permeability.
{"title":"Characterization of petrography and diagenetic processes influence on porosity and permeability of Oligocene sandstone reservoir rocks, block 15-2 in Cuu Long basin","authors":"Kim Phuong Lieu","doi":"10.9790/9622-0706076273","DOIUrl":"https://doi.org/10.9790/9622-0706076273","url":null,"abstract":"Porosity and permeability are the two most important of reservoir rock characteristics particularly in sandstones. They are controlled by rock fabric, mineralogical composition, diagenetic evolution, etc. To address the unknowns, this investigation examined 98 of core, core plug and side wall core samples taken from oil fields of block 15-2 in Cuu Long basin. The samples were analyzed via thin section, Scanning electron microscope (SEM), X-ray diffraction (XRD) and measured helium porosity and Klinkenberg permeability. The results showed that most of sandstones in sequences BH1.2 and C1 are arkose and lithic arkose and sporadically interbedded by feldspathic greywacke and carbonate cemented sandstones while feldspathic greywacke and zeolite cemented sandstones are commonly present in sequences D1 and E1. The clean sandstones with moderately-well grain sorting have higher porosities and permeable abilities than the very poorly-poorly sorted sandstones. The medium-coarse grained sandstones have a higher porosity and permeability than the very finefine grained sandstones. The diagenetic processes of sandstones are progressively growing with the increasing burial depth as smectite transfers into illite and the amount of illite tends to increase while kaolinite reduces and transfers into dickite. Feldspars and lithic fragments are highly leached and sandstones are heavily restricted by cementation and compaction at deeper. The grain sorting, grain size, compaction and cementation cause to decrease the porosity and permeability of the sandstones. Additionally, clay minerals as illite and chlorite have a negative effect and cause highly decreasing permeability.","PeriodicalId":13972,"journal":{"name":"International Journal of Engineering Research and Applications","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83174680","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}
Advancements in networking technologies like cloud computing have popularized applications like, Video-On Demand (VOD), video conferencing, pay-per-view, video broadcast, etc, in all such applications, confidentiality of the video data during transmission in network and during storage is extremely important. This necessitates secure video encryption algorithms suitable for multimedia application because of the large data size and real time constraint. Conventional encryption algorithms are designed for generic data, and as such, it does not support many specific video application requirements. In the paper we propose a computationally efficient and secure video encryption algorithm that makes encryption feasible for real-time applications without heavy computational overhead and reduces key management by utilizing block shuffling technique. Block Shuffling based video encryption with Faro IN OUT Shuffle and rotation, i.e., first image is rotated by an angle then key is generated based Block size using Faro IN OUT perfect shuffle which is a perfect shuffling algorithm which is isomorphic to random permutation. we will show that our proposed method provide more scrambling of image then random permutation and no need to maintain long key file.
云计算等网络技术的进步使得视频点播(VOD)、视频会议、按次付费、视频广播等应用得到普及,在所有这些应用中,视频数据在网络传输和存储过程中的保密性是极其重要的。由于数据量大、实时性受限,需要适合多媒体应用的安全视频加密算法。传统的加密算法是为通用数据设计的,因此,它不支持许多特定的视频应用需求。本文提出了一种计算效率高且安全的视频加密算法,该算法使加密在实时应用中可行,而不需要大量的计算开销,并利用块变换技术减少密钥管理。基于Faro IN OUT洗牌和旋转的块洗牌视频加密,即首先将图像旋转一个角度,然后根据块大小生成密钥,Faro IN OUT完美洗牌算法是一种与随机排列同构的完美洗牌算法。我们将证明我们的方法提供了比随机排列更大的图像置乱,并且不需要维护长密钥文件。
{"title":"Video Encryption Algorithm and Key Management using Perfect Shuffle","authors":"Sayyada Fahmeeda Sultana, C. ShubhangiD.","doi":"10.9790/9622-0707030105","DOIUrl":"https://doi.org/10.9790/9622-0707030105","url":null,"abstract":"Advancements in networking technologies like cloud computing have popularized applications like, Video-On Demand (VOD), video conferencing, pay-per-view, video broadcast, etc, in all such applications, confidentiality of the video data during transmission in network and during storage is extremely important. This necessitates secure video encryption algorithms suitable for multimedia application because of the large data size and real time constraint. Conventional encryption algorithms are designed for generic data, and as such, it does not support many specific video application requirements. In the paper we propose a computationally efficient and secure video encryption algorithm that makes encryption feasible for real-time applications without heavy computational overhead and reduces key management by utilizing block shuffling technique. Block Shuffling based video encryption with Faro IN OUT Shuffle and rotation, i.e., first image is rotated by an angle then key is generated based Block size using Faro IN OUT perfect shuffle which is a perfect shuffling algorithm which is isomorphic to random permutation. we will show that our proposed method provide more scrambling of image then random permutation and no need to maintain long key file.","PeriodicalId":13972,"journal":{"name":"International Journal of Engineering Research and Applications","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88554060","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 report represents a proportion of the materials which can be used as replacing cement. Many previous studies have been done on various properties of concrete like durability, strength etc this is another interpretation from some former reports .this report will mainly focus on the properties of concrete like compressive, split tensile and flexural strength. With this evaluation a perfect combination of both these materials can be distinguished. Replacement to some part of cement (OPC) is done with FA and MS from last decades. If we go through these reports most of them came to a conclusion that these materials are hundred percent riskless and out of harm in any surrounding and under any observation. . These materials are best suitable for mix. The outcome of this analysis will set a better improvement step for conservation of cement to a limited extent along with its environment friendly and economical replacement.
{"title":"An experimental Investigation on Strength Properties of Concrete Containing FA and MS as Partial Replacement of Cement: An Overview","authors":"Harishav Harishav, M. Pandey, S. Agrawal","doi":"10.9790/9622-0707012428","DOIUrl":"https://doi.org/10.9790/9622-0707012428","url":null,"abstract":"The report represents a proportion of the materials which can be used as replacing cement. Many previous studies have been done on various properties of concrete like durability, strength etc this is another interpretation from some former reports .this report will mainly focus on the properties of concrete like compressive, split tensile and flexural strength. With this evaluation a perfect combination of both these materials can be distinguished. Replacement to some part of cement (OPC) is done with FA and MS from last decades. If we go through these reports most of them came to a conclusion that these materials are hundred percent riskless and out of harm in any surrounding and under any observation. . These materials are best suitable for mix. The outcome of this analysis will set a better improvement step for conservation of cement to a limited extent along with its environment friendly and economical replacement.","PeriodicalId":13972,"journal":{"name":"International Journal of Engineering Research and Applications","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87433396","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}
{"title":"Textile reinforced structure: A Review","authors":"S. Bhattacharya, Mrs. S. A. Agrawal","doi":"10.9790/9622-0707088486","DOIUrl":"https://doi.org/10.9790/9622-0707088486","url":null,"abstract":"","PeriodicalId":13972,"journal":{"name":"International Journal of Engineering Research and Applications","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85329202","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}
Rapid growth of technology, up gradation in latest innovation of electrical industry in 21 st century has led one of fastest growing waste stream in world commonly known as E waste. People became so techno geek that they cannot live without electronic gadget, from mobile phone to microwave, from television to telecommunication, and after their life ends, it became trash. We generate about 40 million tons of e waste every year and 30% of its part is made of plastic around 1.2 million tons of plastic and on the other side due to wide use of concrete as constructional element, accessibility of raw material is being questioned, their fore an attempt has been taken to fulfill both requirement, making concrete economical and less effective to environment. This article gives an overview of utilization of waste electronic plastic in concrete mixture as coarse aggregate. This solves the landfill problems, pollution and save economy. The use of waste material in concrete not only makes concrete economical but also helps in dumping of plastic.
{"title":"An Innovative Technique to Utilize E-Plastic as Construction Material: A Review","authors":"P. Singh, M. Pandey, S. Agrawal","doi":"10.9790/9622-0706074345","DOIUrl":"https://doi.org/10.9790/9622-0706074345","url":null,"abstract":"Rapid growth of technology, up gradation in latest innovation of electrical industry in 21 st century has led one of fastest growing waste stream in world commonly known as E waste. People became so techno geek that they cannot live without electronic gadget, from mobile phone to microwave, from television to telecommunication, and after their life ends, it became trash. We generate about 40 million tons of e waste every year and 30% of its part is made of plastic around 1.2 million tons of plastic and on the other side due to wide use of concrete as constructional element, accessibility of raw material is being questioned, their fore an attempt has been taken to fulfill both requirement, making concrete economical and less effective to environment. This article gives an overview of utilization of waste electronic plastic in concrete mixture as coarse aggregate. This solves the landfill problems, pollution and save economy. The use of waste material in concrete not only makes concrete economical but also helps in dumping of plastic.","PeriodicalId":13972,"journal":{"name":"International Journal of Engineering Research and Applications","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85314567","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}
Coherent persistence is the main objective and has been a vital challenge in fourth generation wireless networks (FGWNs). “HANDOVER” is the best possible solution to achieve the coherent connectivity, which will be used for service persistence, when a mobile terminal (MT) is in overlapping area. To support coherent persistence in heterogeneous networks, the traditional Vertical Handover Management (VHM) approaches are not good enough. Hence, it is very important to deal with those challenges like selection of network and triggering of incompatible handover. In Heterogeneous wireless networks main test is constant association among the different networks like Wi-Fi, WI-Max, WLAN and WPAN etc. In this proposal, various Vertical handover decision techniques and schemes have been compared such as, Gray Relational Analysis (GRA) and Technique for Order Preference by Similarity to Ideal Solution (TOPSIS). These approaches helps for the consistent connectivity form the mobile terminal by choosing the best network among the Visitor networks (VTs) those are available. Our proposal work mainly focused on that at the time of handover, the handover decision phase as well as to mitigate the processing delay. We also compared both the GRA and TOPSIS methods with the Quality of Service (QoS) parameters of the mobile terminal (MT) to acquire the connectivity with the best network.
{"title":"Discriminate Vertical Handoff Time Using GRA and TOPSIS Algorithms in Heterogeneous Networks by Effect of Metrics","authors":"M. Naresh, D. V. Reddy, K. Reddy","doi":"10.9790/9622-0707054954","DOIUrl":"https://doi.org/10.9790/9622-0707054954","url":null,"abstract":"Coherent persistence is the main objective and has been a vital challenge in fourth generation wireless networks (FGWNs). “HANDOVER” is the best possible solution to achieve the coherent connectivity, which will be used for service persistence, when a mobile terminal (MT) is in overlapping area. To support coherent persistence in heterogeneous networks, the traditional Vertical Handover Management (VHM) approaches are not good enough. Hence, it is very important to deal with those challenges like selection of network and triggering of incompatible handover. In Heterogeneous wireless networks main test is constant association among the different networks like Wi-Fi, WI-Max, WLAN and WPAN etc. In this proposal, various Vertical handover decision techniques and schemes have been compared such as, Gray Relational Analysis (GRA) and Technique for Order Preference by Similarity to Ideal Solution (TOPSIS). These approaches helps for the consistent connectivity form the mobile terminal by choosing the best network among the Visitor networks (VTs) those are available. Our proposal work mainly focused on that at the time of handover, the handover decision phase as well as to mitigate the processing delay. We also compared both the GRA and TOPSIS methods with the Quality of Service (QoS) parameters of the mobile terminal (MT) to acquire the connectivity with the best network.","PeriodicalId":13972,"journal":{"name":"International Journal of Engineering Research and Applications","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89883585","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}