Shale gas production has been successful developed over the past several years. The horizontal well with multistage hydraulic fracturing has proven to be an effective operation of development these unconventional reservoirs. Most of modeling effort has been made for earlier liner flow. A simple analytical model for long-term shale gas production evaluation is still lacking. This work fill this gap. A simple and accurate mathematical model are developed which considering linear flow in both shale matrix and fracture. It can describe the longterm shale gas production with pseudo steady state flow. The model is verified against a Fayetteville field case data. The difference between the production rate given by the model and measured data was found to be less than 10%. The effect of fracture geometry parameter on long-term production rate are also investigated. The results show the fracture spacing and fracture length is the most dominant factors on thelong-term shale gas production performance.This model provides reservoir engineers a simple and accurate tool for predicting, evaluating and optimizing the long-term performance of shale gas wells.
{"title":"A Simple Analytical Model for Estimating Long-term Productivity of Multi-fractured Shale Gas Wells","authors":"Zhengce Zhang, Bin Wang","doi":"10.9790/9622-0707040615","DOIUrl":"https://doi.org/10.9790/9622-0707040615","url":null,"abstract":"Shale gas production has been successful developed over the past several years. The horizontal well with multistage hydraulic fracturing has proven to be an effective operation of development these unconventional reservoirs. Most of modeling effort has been made for earlier liner flow. A simple analytical model for long-term shale gas production evaluation is still lacking. This work fill this gap. A simple and accurate mathematical model are developed which considering linear flow in both shale matrix and fracture. It can describe the longterm shale gas production with pseudo steady state flow. The model is verified against a Fayetteville field case data. The difference between the production rate given by the model and measured data was found to be less than 10%. The effect of fracture geometry parameter on long-term production rate are also investigated. The results show the fracture spacing and fracture length is the most dominant factors on thelong-term shale gas production performance.This model provides reservoir engineers a simple and accurate tool for predicting, evaluating and optimizing the long-term performance of shale gas wells.","PeriodicalId":13972,"journal":{"name":"International Journal of Engineering Research and Applications","volume":"76 1","pages":"06-15"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84056623","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}
Kumasi the capital of the Ashanti Region in Ghana has been observed to have high noise pollution. It has been observed that social gatherings, especially church services and funeral gatherings, are the main contributors to such noise. Measurements of noise levels were carried out in three churches and three funeral gatherings, using DT-8852 Precision Digital Sound Level meter, to investigate whether they conform to the Environmental Protection Agency (EPA) standards, and if not, to find out how much they exceed the EPA prescribed limits. Noise levels from the Church A, Church B and the Church C were 78.3 dBA, 82.8 dBA and 81.4 dBA respectively. Funeral ground 1 recorded the highest noise level of 84 dBA, followed by funeral ground 3 of 83.6dBA, then funeral ground 2 of 79.2dBA. The sampled churches and funeral gatherings, thus, exceeded their day time permissible EPA noise levels of 60 dBA and 65 dBA respectively. It is recommended that the public be made aware of the adverse effects of noise pollution and steps taken to enforce the EPA standards to protect inhabitants.
{"title":"Noise pollution at Ghanaian Social Gatherings: the case of the Kumasi Metropolis","authors":"Abankwa E.O, A. AgyeiAgyemang, P. O. Tawiah","doi":"10.9790/9622-0707052027","DOIUrl":"https://doi.org/10.9790/9622-0707052027","url":null,"abstract":"Kumasi the capital of the Ashanti Region in Ghana has been observed to have high noise pollution. It has been observed that social gatherings, especially church services and funeral gatherings, are the main contributors to such noise. Measurements of noise levels were carried out in three churches and three funeral gatherings, using DT-8852 Precision Digital Sound Level meter, to investigate whether they conform to the Environmental Protection Agency (EPA) standards, and if not, to find out how much they exceed the EPA prescribed limits. Noise levels from the Church A, Church B and the Church C were 78.3 dBA, 82.8 dBA and 81.4 dBA respectively. Funeral ground 1 recorded the highest noise level of 84 dBA, followed by funeral ground 3 of 83.6dBA, then funeral ground 2 of 79.2dBA. The sampled churches and funeral gatherings, thus, exceeded their day time permissible EPA noise levels of 60 dBA and 65 dBA respectively. It is recommended that the public be made aware of the adverse effects of noise pollution and steps taken to enforce the EPA standards to protect inhabitants.","PeriodicalId":13972,"journal":{"name":"International Journal of Engineering Research and Applications","volume":"70 1","pages":"20-27"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88533483","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 objective of this work is to determine the extent to which the evaluation of the yield component "weights thousand grains" allows the creation of recombinant inbred lines of sorghum to increase production.The plant material used is a population of 14 recombinant inbred lines of a F7 filial generation and controls CE 151262 and F2-20.The experimental setup under natural conditions uses randomized blocks with 2 repetitions. The statistical analysis was done by the Student Newmann Keuls test.The results obtained show that the "thousandgrain weight" of the recombinant inbred of 7 populations is greater than that of the controls used. These recombinant inbred, particularly L 49, can be tested for increased sorghum grain production.
{"title":"Creation Of High Yielding Recombinant Inbred LinesOf Sorghum Bicolor (L.) Moench from a yield component","authors":"K. Boubacar, K. Ibrahima","doi":"10.9790/9622-0707085861","DOIUrl":"https://doi.org/10.9790/9622-0707085861","url":null,"abstract":"The objective of this work is to determine the extent to which the evaluation of the yield component \"weights thousand grains\" allows the creation of recombinant inbred lines of sorghum to increase production.The plant material used is a population of 14 recombinant inbred lines of a F7 filial generation and controls CE 151262 and F2-20.The experimental setup under natural conditions uses randomized blocks with 2 repetitions. The statistical analysis was done by the Student Newmann Keuls test.The results obtained show that the \"thousandgrain weight\" of the recombinant inbred of 7 populations is greater than that of the controls used. These recombinant inbred, particularly L 49, can be tested for increased sorghum grain production.","PeriodicalId":13972,"journal":{"name":"International Journal of Engineering Research and Applications","volume":"76 1","pages":"58-61"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87138649","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}
K. AmrethaKrishnan.A., M. Manshooba.P., Sameer Abdurahiman, L. Saroop.C., R. Jayan.P.
Although, large scale coconut oil extraction is excessively available, it cannot meet the requirements for a small scale farmer. Deficiency in coconut production and high cost of coconut oil extraction impede the small scale coconut farming. To overcome these problems a power operated coconut oil expeller was developed and tested. It consists of a screw shaft, a prime mover, barrel, hopper and outlets are fitted on a supporting frame. The feed rate was optimized to 3.5 kg h -1 and in order to increase oil recovery. The sliced copra is fed to expeller through hopper and get compressed between screw shaft and the barrel. The effective compression and the amount oil recovered depend on moisture content. The optimum moisture was founded as 7.2% (wb), and observed that at this moisture content 53.25% maximum of oil recovery was obtained. The efficiency of the expeller is 84.8 at a working cost @ Rs 4 per kg.
虽然，大规模的椰子油提取是过度的，但它不能满足小农的要求。椰子产量不足和椰子油提取成本高阻碍了小规模的椰子种植。为了克服这些问题，一种动力操作的椰子油挤出机被开发和测试。它由一个螺旋轴，一个原动机，桶，料斗和出口安装在一个支撑框架。为了提高原油采收率，将进料速度优化为3.5 kg h -1。切好的椰肉通过料斗被送入出料机，在螺杆轴和料筒之间被压缩。有效压缩和采油量取决于含水率。优选出最佳含水率为7.2% (wb)，在此含水率下可获得最大采收率53.25%。风机的效率为84.8，工作成本为每公斤4卢比。
{"title":"Development and Testing of a Power Operated Coconut Oil Expeller","authors":"K. AmrethaKrishnan.A., M. Manshooba.P., Sameer Abdurahiman, L. Saroop.C., R. Jayan.P.","doi":"10.9790/9622-0707040105","DOIUrl":"https://doi.org/10.9790/9622-0707040105","url":null,"abstract":"Although, large scale coconut oil extraction is excessively available, it cannot meet the requirements for a small scale farmer. Deficiency in coconut production and high cost of coconut oil extraction impede the small scale coconut farming. To overcome these problems a power operated coconut oil expeller was developed and tested. It consists of a screw shaft, a prime mover, barrel, hopper and outlets are fitted on a supporting frame. The feed rate was optimized to 3.5 kg h -1 and in order to increase oil recovery. The sliced copra is fed to expeller through hopper and get compressed between screw shaft and the barrel. The effective compression and the amount oil recovered depend on moisture content. The optimum moisture was founded as 7.2% (wb), and observed that at this moisture content 53.25% maximum of oil recovery was obtained. The efficiency of the expeller is 84.8 at a working cost @ Rs 4 per kg.","PeriodicalId":13972,"journal":{"name":"International Journal of Engineering Research and Applications","volume":"12 1","pages":"01-05"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91516856","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}
Image fusion of multispectral and panchromatic satellite image is used to combine spatial detail of the panchromatic image of high spatial resolution and spectral information of multispectral image of low resolution, in order to create a synthetic multispectral high-resolution image. This process is called pansharpening and the resulting image, has among others, improved visual quality and visual interpretation capabilities. These improvements are particularly useful in studying environmental issues. A large number of fusion techniques have been developed at various levels. This paper includes a critical consideration of certain fusion techniques at pixel level, as well as a relevant example of panchromatic and multispectral satellite image fusion of satellite Landsat 8.
{"title":"Fusion of Multispectral and Panchromatic Satellite Images in Environmental Issues","authors":"A. Karagianni, M. Lazaridou","doi":"10.9790/9622-0707064750","DOIUrl":"https://doi.org/10.9790/9622-0707064750","url":null,"abstract":"Image fusion of multispectral and panchromatic satellite image is used to combine spatial detail of the panchromatic image of high spatial resolution and spectral information of multispectral image of low resolution, in order to create a synthetic multispectral high-resolution image. This process is called pansharpening and the resulting image, has among others, improved visual quality and visual interpretation capabilities. These improvements are particularly useful in studying environmental issues. A large number of fusion techniques have been developed at various levels. This paper includes a critical consideration of certain fusion techniques at pixel level, as well as a relevant example of panchromatic and multispectral satellite image fusion of satellite Landsat 8.","PeriodicalId":13972,"journal":{"name":"International Journal of Engineering Research and Applications","volume":"6 1","pages":"47-50"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73562526","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":"Impact of Noise in the Industry and Commercial areas in Ghana: Case Study of the Kumasi metropolis","authors":"Abankwa E.O, Agyei- Agyemang A., T. P.O","doi":"10.9790/9622-0707051119","DOIUrl":"https://doi.org/10.9790/9622-0707051119","url":null,"abstract":"","PeriodicalId":13972,"journal":{"name":"International Journal of Engineering Research and Applications","volume":"6 1","pages":"11-19"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78628969","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 this work, a high speed free space optical (FSO) system is demonstrated by incorporating cost effective technique called spectrum slicing. Major achievement of the research is to use the nonlinear effect called self phase modulation as an application in spectrum slicing. A multichannel system is realized using the spectrum slices and each supports data rate of 2.5 Gbps over 5 km link distance. Investigation is carried out for different performance degrading turbulences that affect the FSO channels such as fog and haze. Different beam divergences and aperture size of transmitter and receiver is also studied for NRZ and RZ. Outcomes after analyses revealed that NRZ in large antenna sizes under clear weather for minimum values of beam divergence is better to use than RZ modulation format.
{"title":"Investigation and Analysis of Free Space Optical Link for Different Atmospheric Turbulences, Beam divergences and modulation formats","authors":"G. Singh, Er. Mandeep Singh","doi":"10.9790/9622-0707042225","DOIUrl":"https://doi.org/10.9790/9622-0707042225","url":null,"abstract":"In this work, a high speed free space optical (FSO) system is demonstrated by incorporating cost effective technique called spectrum slicing. Major achievement of the research is to use the nonlinear effect called self phase modulation as an application in spectrum slicing. A multichannel system is realized using the spectrum slices and each supports data rate of 2.5 Gbps over 5 km link distance. Investigation is carried out for different performance degrading turbulences that affect the FSO channels such as fog and haze. Different beam divergences and aperture size of transmitter and receiver is also studied for NRZ and RZ. Outcomes after analyses revealed that NRZ in large antenna sizes under clear weather for minimum values of beam divergence is better to use than RZ modulation format.","PeriodicalId":13972,"journal":{"name":"International Journal of Engineering Research and Applications","volume":"101 1","pages":"22-25"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77268373","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 calamitous damage to life and property due to wind storms is experienced in many parts of the world including India, which has a huge coastal area. This has embolden many investigations on the determination of wind loads on different structures. Usually the estimation of wind loads in Buildings is carried out using codes and standards, whose enumeration are generally based on wind tunnel tests performed on selected building structures with common shapes. For example in India, A draft code of IS-875 (Part 3) for wind loading gives specifications for rectangular square, cylindrical and some typical Industrial Structures. Wind pressure estimation in buildings having shapes different from that specified on codes and standard requires wind tunnel studies. Also, Wind tunnel studies are expensive in terms of resources and time. The project suggests the Dynamic analysis for determination of wind pressure (loads) in buildings and structures. MS Excel is commanding enough for the calculation of wind pressure distribution to more cases than those currently covered by limited wind tunnel data. Some comparisons were also done using STAAD Pro with the dynamic response of building considering some examples. MS Excel has been used to determine the along wind and across wind response of a tall building. A draft code CED-37 (7792) was used to generate data for the along and across wind response of a tall building by varying various parameters as height, width, depth, terrain category, basic wind speed and force coefficient for the building. Finally, calculation of response of along and across wind of any dimension of building can be done with the draft code provisions and necessity of that is discussed
{"title":"Development of Software Package in Excel for Along and Across Wind Response of Tall Building","authors":"R. S. Parihar, Ajay Singh","doi":"10.9790/9622-0707087176","DOIUrl":"https://doi.org/10.9790/9622-0707087176","url":null,"abstract":"The calamitous damage to life and property due to wind storms is experienced in many parts of the world including India, which has a huge coastal area. This has embolden many investigations on the determination of wind loads on different structures. Usually the estimation of wind loads in Buildings is carried out using codes and standards, whose enumeration are generally based on wind tunnel tests performed on selected building structures with common shapes. For example in India, A draft code of IS-875 (Part 3) for wind loading gives specifications for rectangular square, cylindrical and some typical Industrial Structures. Wind pressure estimation in buildings having shapes different from that specified on codes and standard requires wind tunnel studies. Also, Wind tunnel studies are expensive in terms of resources and time. The project suggests the Dynamic analysis for determination of wind pressure (loads) in buildings and structures. MS Excel is commanding enough for the calculation of wind pressure distribution to more cases than those currently covered by limited wind tunnel data. Some comparisons were also done using STAAD Pro with the dynamic response of building considering some examples. MS Excel has been used to determine the along wind and across wind response of a tall building. A draft code CED-37 (7792) was used to generate data for the along and across wind response of a tall building by varying various parameters as height, width, depth, terrain category, basic wind speed and force coefficient for the building. Finally, calculation of response of along and across wind of any dimension of building can be done with the draft code provisions and necessity of that is discussed","PeriodicalId":13972,"journal":{"name":"International Journal of Engineering Research and Applications","volume":"29 1","pages":"71-76"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82805913","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}
Bansal Deepak, Yadav Nidhi, Bagan Munish, N. Bishnoi, S. Mona
In the era of extreme global competition the industries are more focusing on adoption of latest and advanced technology and sustainable manufacturing practices. These days manufacturing is also viewed from broader perspective of sustainability, therefore, manufacturing companies are also pushing them to achieve various dimensions of sustainability, such as social, economical and environmental. Industries are regularly working on reducing their carbon footprint. Energy management is one of the method through which industries are focusing on reduction of carbon footprint and cost to become more sustainable in this competitive time. Regular cost reduction pressure on auto component manufacturing company from their Original Equipment Manufacturer (OEM) is increasing day by day due to competition in market. To compensate the pressure auto-component manufacturing industries are taking many initiatives. Apart from raw material and manpower cost, energy cost is also one of the major contributors. Due to carbon footprint the role of energy management has greatly expanded. Major industries are contracting with energy service providers to implement energy management practices to improve efficiency. The present study aims to identify the energy management practices adopted by an auto ancillary to reduce its carbon footprint for environmentally sustainable manufacturing.
{"title":"Energy Management Practices In an Autoancillery to Reduce Carbon Footprint for Environmentally Sustainable Manufacturing","authors":"Bansal Deepak, Yadav Nidhi, Bagan Munish, N. Bishnoi, S. Mona","doi":"10.9790/9622-0707022025","DOIUrl":"https://doi.org/10.9790/9622-0707022025","url":null,"abstract":"In the era of extreme global competition the industries are more focusing on adoption of latest and advanced technology and sustainable manufacturing practices. These days manufacturing is also viewed from broader perspective of sustainability, therefore, manufacturing companies are also pushing them to achieve various dimensions of sustainability, such as social, economical and environmental. Industries are regularly working on reducing their carbon footprint. Energy management is one of the method through which industries are focusing on reduction of carbon footprint and cost to become more sustainable in this competitive time. Regular cost reduction pressure on auto component manufacturing company from their Original Equipment Manufacturer (OEM) is increasing day by day due to competition in market. To compensate the pressure auto-component manufacturing industries are taking many initiatives. Apart from raw material and manpower cost, energy cost is also one of the major contributors. Due to carbon footprint the role of energy management has greatly expanded. Major industries are contracting with energy service providers to implement energy management practices to improve efficiency. The present study aims to identify the energy management practices adopted by an auto ancillary to reduce its carbon footprint for environmentally sustainable manufacturing.","PeriodicalId":13972,"journal":{"name":"International Journal of Engineering Research and Applications","volume":"23 1","pages":"20-25"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87117757","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 recently introduced a new method for Sparse matrix storage[1] which will considerably reduce the storage space by storing only nonzero elements along with the weight of each row(or column) and the number of rows(or column). This paper discusses two algorithms, SMDC Algorithm to convert a sparse matrix into decimal coding format and Reverse SMDC Algorithm to convert a decimally coded matrix back into the normal sparse matrix format. SMDC is a space optimized storage method for storing sparse matrices. It can store a sparse matrix with m rows and n columns and nnz nonzero elements, with smaller (m or n) + nnz +1 storage space, which is very much space efficient storage compared to most of the sparse matrix storage methods.
{"title":"Sparse Matrix to Decimal Coding (SMDC) Algorithm","authors":"K. Afsal, Sainul Abideen, V. Kabeer","doi":"10.9790/9622-0707089294","DOIUrl":"https://doi.org/10.9790/9622-0707089294","url":null,"abstract":"We recently introduced a new method for Sparse matrix storage[1] which will considerably reduce the storage space by storing only nonzero elements along with the weight of each row(or column) and the number of rows(or column). This paper discusses two algorithms, SMDC Algorithm to convert a sparse matrix into decimal coding format and Reverse SMDC Algorithm to convert a decimally coded matrix back into the normal sparse matrix format. SMDC is a space optimized storage method for storing sparse matrices. It can store a sparse matrix with m rows and n columns and nnz nonzero elements, with smaller (m or n) + nnz +1 storage space, which is very much space efficient storage compared to most of the sparse matrix storage methods.","PeriodicalId":13972,"journal":{"name":"International Journal of Engineering Research and Applications","volume":"3 1","pages":"92-94"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89391820","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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