(Received: 13 October 2017; accepted: 14 November 2017) Tonko Faldić University of Split, Faculty of Civil Engineering, Architecture and Geodesy, Master Student Corresponding author: tonko.faldic@gmail.com Helder David Craveiro ISISE University of Coimbra, Faculty of Science and Technology, Department of Civil Engineering, Invited Assistant Professor Aldina Santiago ISISE University of Coimbra, Faculty of Science and Technology, Department of Civil Engineering, Assistant Professor Neno Torić University of Split, Faculty of Civil Engineering, Architecture and Geodesy, Assistant Professor
（2017年10月13日接收；2017年11月14日接收）斯普利特Tonko Faldić大学土木工程、建筑和大地测量学院，硕士生通讯作者：tonko.faldic@gmail.comHelder David Craveiro ISISE科英布拉大学土木工程系科学技术学院，受邀助理教授Aldina Santiago ISISE科英布拉大学土建工程系科学与技术学院，斯普利特大学Neno Torić助理教授，土木工程、建筑和大地测量学院，助理教授
{"title":"Structural analysis of a steel column exposed to a localized fire","authors":"Tonko Faldić, H. Craveiro, A. Santiago, N. Torić","doi":"10.13167/2017.15.1","DOIUrl":"https://doi.org/10.13167/2017.15.1","url":null,"abstract":"(Received: 13 October 2017; accepted: 14 November 2017) Tonko Faldić University of Split, Faculty of Civil Engineering, Architecture and Geodesy, Master Student Corresponding author: tonko.faldic@gmail.com Helder David Craveiro ISISE University of Coimbra, Faculty of Science and Technology, Department of Civil Engineering, Invited Assistant Professor Aldina Santiago ISISE University of Coimbra, Faculty of Science and Technology, Department of Civil Engineering, Assistant Professor Neno Torić University of Split, Faculty of Civil Engineering, Architecture and Geodesy, Assistant Professor","PeriodicalId":53887,"journal":{"name":"Electronic Journal of the Faculty of Civil Engineering Osijek-e-GFOS","volume":"8 1","pages":"1-12"},"PeriodicalIF":0.2,"publicationDate":"2017-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.13167/2017.15.1","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43953107","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 article is to show the design process of a liquid-storage tank shell according to Eurocode and compare the results obtained using the norms with those from a finite element method (FEM) analysis. The calculations were performed for an aboveground vertical steel water-storage tank with a variable thickness wall and stiffening ring on top. First, the types of liquid storage tanks are briefly explained. Second, the given tank is described. Third, an analysis of the tank wall according to the Eurocode was carried out. The FEM analysis was performed using the Scia Engineer ver. 17 software. Finally, all the results are presented in tables and compared.
{"title":"DESIGN OF LIQUID-STORAGE TANK: RESULTS OF SOFTWARE MODELING VS CALCULATIONS ACCORDING TO EUROCODE","authors":"M. Gulin, I. Uzelac, J. Dolejs, I. Boko","doi":"10.13167/2017.15.8","DOIUrl":"https://doi.org/10.13167/2017.15.8","url":null,"abstract":"The objective of this article is to show the design process of a liquid-storage tank shell according to Eurocode and compare the results obtained using the norms with those from a finite element method (FEM) analysis. The calculations were performed for an aboveground vertical steel water-storage tank with a variable thickness wall and stiffening ring on top. First, the types of liquid storage tanks are briefly explained. Second, the given tank is described. Third, an analysis of the tank wall according to the Eurocode was carried out. The FEM analysis was performed using the Scia Engineer ver. 17 software. Finally, all the results are presented in tables and compared.","PeriodicalId":53887,"journal":{"name":"Electronic Journal of the Faculty of Civil Engineering Osijek-e-GFOS","volume":"8 1","pages":"85-97"},"PeriodicalIF":0.2,"publicationDate":"2017-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.13167/2017.15.8","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66266205","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}
A. Meneylyuk, A. Petrovskiy, A. Borisov, A. Nikiforov
This study focuses on developing methods of anti-contagious underground shield arrangement. The results of experimental laboratory and full-scale in situ studies of the horizontal protective shield arrangement are discussed, and the method and laboratory equipment to conduct such research are developed. Moreover, the different embodiments of the shielding apparatus are studied using bentonite, sodium hydrosilicate in combination with calcium chloride, and a waterproofing soft-elastic injection resin. The analytical and graphic dependencies of the changes of the shield filtration coefficient from different injectable formulations are presented. In conclusion, the most economically efficient technological modes of horizontal shield arrangement are the usage of soft-elastic waterproofing injection resin with drilling the wells at a 0.3 m distance from each other.
{"title":"INNOVATIVE TECHNOLOGY OF HORIZONTAL PROTECTIVE SHIELD ARRANGEMENT USING INJECTION","authors":"A. Meneylyuk, A. Petrovskiy, A. Borisov, A. Nikiforov","doi":"10.13167/2017.15.4","DOIUrl":"https://doi.org/10.13167/2017.15.4","url":null,"abstract":"This study focuses on developing methods of anti-contagious underground shield arrangement. The results of experimental laboratory and full-scale in situ studies of the horizontal protective shield arrangement are discussed, and the method and laboratory equipment to conduct such research are developed. Moreover, the different embodiments of the shielding apparatus are studied using bentonite, sodium hydrosilicate in combination with calcium chloride, and a waterproofing soft-elastic injection resin. The analytical and graphic dependencies of the changes of the shield filtration coefficient from different injectable formulations are presented. In conclusion, the most economically efficient technological modes of horizontal shield arrangement are the usage of soft-elastic waterproofing injection resin with drilling the wells at a 0.3 m distance from each other.","PeriodicalId":53887,"journal":{"name":"Electronic Journal of the Faculty of Civil Engineering Osijek-e-GFOS","volume":"8 1","pages":"36-49"},"PeriodicalIF":0.2,"publicationDate":"2017-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47704681","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 behavior of sand largely depends on the initial state, water content, drainage conditions, and type of action on the sand. The dominant mechanism that governs sand behavior is dilatancy, the volume change during shearing. Owing to dilatancy, dense sand samples attain greater strength during shearing compared to loose samples. Investigation of the sand behavior shows that the final strength during shearing, for the sand samples starting from the same initial state of stress, tends to be independent of the initial void ratio. This final state is called the critical state, or steady state, and can be well described by the critical state line. The main goal of this research is to investigate the behavior of clean sand from Jerovec under triaxial shearing and to derive its critical state line. The behavior of sand is investigated for different initial states (initial densities and state of stress) and for different drainage conditions (consolidated isotropically drained (CID) test and consolidated isotropically undrained (CIU) test). The test results are presented along with all the laboratory tests performed on Jerovec sand (grain-size distribution, specific gravity, minimum and maximum void ratio). The critical state line is compared with those of other sands available in the literature.
{"title":"TESTING OF JEROVEC SAND AND DEFINING ITS CRITICAL STATE LINE","authors":"Jure Ofak, S. Zlatović, Igor Sokolić","doi":"10.13167/2017.15.5","DOIUrl":"https://doi.org/10.13167/2017.15.5","url":null,"abstract":"The behavior of sand largely depends on the initial state, water content, drainage conditions, and type of action on the sand. The dominant mechanism that governs sand behavior is dilatancy, the volume change during shearing. Owing to dilatancy, dense sand samples attain greater strength during shearing compared to loose samples. Investigation of the sand behavior shows that the final strength during shearing, for the sand samples starting from the same initial state of stress, tends to be independent of the initial void ratio. This final state is called the critical state, or steady state, and can be well described by the critical state line. The main goal of this research is to investigate the behavior of clean sand from Jerovec under triaxial shearing and to derive its critical state line. The behavior of sand is investigated for different initial states (initial densities and state of stress) and for different drainage conditions (consolidated isotropically drained (CID) test and consolidated isotropically undrained (CIU) test). The test results are presented along with all the laboratory tests performed on Jerovec sand (grain-size distribution, specific gravity, minimum and maximum void ratio). The critical state line is compared with those of other sands available in the literature.","PeriodicalId":53887,"journal":{"name":"Electronic Journal of the Faculty of Civil Engineering Osijek-e-GFOS","volume":"8 1","pages":"50-58"},"PeriodicalIF":0.2,"publicationDate":"2017-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43531047","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}
V. Karpiuk, A. Kostiuk, O. Maistrenko, Yu. A. Somina
This article describes the study of reinforced concrete span bending structures under conditions of highlevel cyclic loading. Previous studies on the development of physical models of bending reinforced concrete element fatigue resistance, cyclic effect of lateral forces, and methods of calculation, are important and appropriate owing to certain features and the essential specificity of the mentioned loading type. These primarily include the nonlinearity of deformation, damage accumulation in the form of fatigue microand macro-cracks, and exhausting destruction of construction materials. In this paper, key expressions determining the endurance limits of concrete, longitudinal reinforcement, and anchoring longitudinal reinforcement, which contribute to endurance throughout the entire construction, are considered. Establishing a link between stresses in the elements and deformations in the element under conditions of cyclic loading action is of equal importance because of the presence of cyclic stressinduced creep deformation.
{"title":"INFLUENCE OF INTERMITTENT CYCLIC LOADING ON REINFORCED CONCRETE RESISTANCE MODEL","authors":"V. Karpiuk, A. Kostiuk, O. Maistrenko, Yu. A. Somina","doi":"10.13167/2017.15.6","DOIUrl":"https://doi.org/10.13167/2017.15.6","url":null,"abstract":"This article describes the study of reinforced concrete span bending structures under conditions of highlevel cyclic loading. Previous studies on the development of physical models of bending reinforced concrete element fatigue resistance, cyclic effect of lateral forces, and methods of calculation, are important and appropriate owing to certain features and the essential specificity of the mentioned loading type. These primarily include the nonlinearity of deformation, damage accumulation in the form of fatigue microand macro-cracks, and exhausting destruction of construction materials. In this paper, key expressions determining the endurance limits of concrete, longitudinal reinforcement, and anchoring longitudinal reinforcement, which contribute to endurance throughout the entire construction, are considered. Establishing a link between stresses in the elements and deformations in the element under conditions of cyclic loading action is of equal importance because of the presence of cyclic stressinduced creep deformation.","PeriodicalId":53887,"journal":{"name":"Electronic Journal of the Faculty of Civil Engineering Osijek-e-GFOS","volume":"8 1","pages":"59-74"},"PeriodicalIF":0.2,"publicationDate":"2017-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46085996","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}
A. Ivanković, Predrag Ivanković, D. Petrović, T. Anđelić, Jerina Majstorović
The lower flow of the Neretva River (delta) covers approximately 20.000 hectares. This is a unique, humid Mediterranean area with a number of important and protected wetland habitats and is a ornithological, ichthyology, and botanical reserve. By measuring the physico-chemical parameters at 20 locations, the water quality was determined with special attention to the occurrence of salinity. Increasing salinity of the Neretva water was found, owing to inflow reduction groundwater of the river Trebišnjica and the uncontrolled deepening of the Neretva riverbed. During a one-year monitoring period, field tests were conducted of significant maritime impacts on water quality. The physical parameters were the measured temperature, conductivity, electrical resistance, salinity, chemical quantity of dissolved oxygen (expressed as a percentage, mg L-1), the oxygen pressure in water, and the pH value. The values of the above parameters were measured in the field with WTW multiparameter instruments.
{"title":"SALINITY AND PHYSICOCHEMICAL WATER PARAMETERS OF THE LOWER FLOW OF NERETVA RIVER","authors":"A. Ivanković, Predrag Ivanković, D. Petrović, T. Anđelić, Jerina Majstorović","doi":"10.13167/2017.15.7","DOIUrl":"https://doi.org/10.13167/2017.15.7","url":null,"abstract":"The lower flow of the Neretva River (delta) covers approximately 20.000 hectares. This is a unique, humid Mediterranean area with a number of important and protected wetland habitats and is a ornithological, ichthyology, and botanical reserve. By measuring the physico-chemical parameters at 20 locations, the water quality was determined with special attention to the occurrence of salinity. Increasing salinity of the Neretva water was found, owing to inflow reduction groundwater of the river Trebišnjica and the uncontrolled deepening of the Neretva riverbed. During a one-year monitoring period, field tests were conducted of significant maritime impacts on water quality. The physical parameters were the measured temperature, conductivity, electrical resistance, salinity, chemical quantity of dissolved oxygen (expressed as a percentage, mg L-1), the oxygen pressure in water, and the pH value. The values of the above parameters were measured in the field with WTW multiparameter instruments.","PeriodicalId":53887,"journal":{"name":"Electronic Journal of the Faculty of Civil Engineering Osijek-e-GFOS","volume":"8 1","pages":"75-84"},"PeriodicalIF":0.2,"publicationDate":"2017-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49525808","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}
Managing personnel costs is important in all companies, especially in those whose production is labor intensive. The construction sector therefore qualifies as a suitable area for analyzing issues associated with these costs. The aim of this study is to find out whether company size affects personnel cost management under various circumstances. Four research hypotheses focus on the relationships among and the relative importance of personnel costs, use of standards, range of employee benefits offered, and economic actions taken when faced with an economic crisis. The evaluation of hypotheses is supported by using the chi-square test of independence with the aim of confirming or rejecting the statistical significance of relationships between the examined categorical variables. Results have confirmed a significant effect of company size. Several research implications and suggested future research directions are also presented in the conclusion of this paper.
{"title":"PERSONNEL COSTS IN THE CZECH CONSTRUCTION SECTOR: INVESTIGATING THE EFFECT OF COMPANY SIZE","authors":"Martina Paulišová, T. Hanák","doi":"10.13167/2017.15.2","DOIUrl":"https://doi.org/10.13167/2017.15.2","url":null,"abstract":"Managing personnel costs is important in all companies, especially in those whose production is labor intensive. The construction sector therefore qualifies as a suitable area for analyzing issues associated with these costs. The aim of this study is to find out whether company size affects personnel cost management under various circumstances. Four research hypotheses focus on the relationships among and the relative importance of personnel costs, use of standards, range of employee benefits offered, and economic actions taken when faced with an economic crisis. The evaluation of hypotheses is supported by using the chi-square test of independence with the aim of confirming or rejecting the statistical significance of relationships between the examined categorical variables. Results have confirmed a significant effect of company size. Several research implications and suggested future research directions are also presented in the conclusion of this paper.","PeriodicalId":53887,"journal":{"name":"Electronic Journal of the Faculty of Civil Engineering Osijek-e-GFOS","volume":"8 1","pages":"13-22"},"PeriodicalIF":0.2,"publicationDate":"2017-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47649116","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}
M. Galić, V. Venkrbec, Franziska Chmelik, Immo Feine, Zoran Pučko, U. Klanšek
Building information modelling (BIM) may currently be considered the fastest developing concept in the field of construction management, aiming to become a global standard. Although the roots of the concept date back to the mid-1970s, some original expectations are still missing from its implementation. There has been a time gap between its theoretical and practical implementations. While the simultaneous development of information technologies is one reason for the implementation delay, other reasons remain unclear. This paper analyzes the gaps between theoretical and practical BIM application, as well as the legislation regarding BIM implementation in four countries (in alphabetical order: Croatia, the Czech Republic, Germany, and Slovenia). The paper additionally presents a survey of current practical BIM applications as well as general and theoretical feedback from construction projects that implemented BIM.
{"title":"SURVEY OF ACCOMPLISHMENTS IN BIM IMPLEMENTATION IN CROATIA, THE CZECH REPUBLIC, GERMANY, AND SLOVENIA","authors":"M. Galić, V. Venkrbec, Franziska Chmelik, Immo Feine, Zoran Pučko, U. Klanšek","doi":"10.13167/2017.15.3","DOIUrl":"https://doi.org/10.13167/2017.15.3","url":null,"abstract":"Building information modelling (BIM) may currently be considered the fastest developing concept in the field of construction management, aiming to become a global standard. Although the roots of the concept date back to the mid-1970s, some original expectations are still missing from its implementation. There has been a time gap between its theoretical and practical implementations. While the simultaneous development of information technologies is one reason for the implementation delay, other reasons remain unclear. This paper analyzes the gaps between theoretical and practical BIM application, as well as the legislation regarding BIM implementation in four countries (in alphabetical order: Croatia, the Czech Republic, Germany, and Slovenia). The paper additionally presents a survey of current practical BIM applications as well as general and theoretical feedback from construction projects that implemented BIM.","PeriodicalId":53887,"journal":{"name":"Electronic Journal of the Faculty of Civil Engineering Osijek-e-GFOS","volume":"8 1","pages":"23-35"},"PeriodicalIF":0.2,"publicationDate":"2017-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.13167/2017.15.3","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43620356","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}
Considering that modern building materials impose increasing performance requirements, it is necessary to expand the range of building materials and improve their multicomponent composition. The effects of polymer and porous components (expanded perlite sand and carbonate filler – limestone-shell rock) in cement-lime light plaster on the physico-mechanical properties of the mixtures under equal workability conditions of mixtures are analyzed based on experimental-statistical modeling. The results of the physico-mechanical and operational experiments confirm the rationality of using porous fillers and additives to improve certain specific properties of the final product. The so-called Monte-Carlo method is implemented for determining an optimal composition of multicomponent cement-lime light plaster, based on multivariate statistical modeling and iterative random scanning of property fields. According to the results of the computational experiment, a composition that reduces the number of expensive mixture components and improves the physical and mechanical characteristics of the resulting composition is selected.
{"title":"EXPERIENCE OF USING THE MONTE-CARLO METHOD IN DETERMINING OPTIMAL PLASTER COMPOSITIONS WITH IMPROVED STRENGTH PROPERTIES","authors":"K. Moskalova, A. Aniskin","doi":"10.13167/2017.14.4","DOIUrl":"https://doi.org/10.13167/2017.14.4","url":null,"abstract":"Considering that modern building materials impose increasing performance requirements, it is necessary to expand the range of building materials and improve their multicomponent composition. The effects of polymer and porous components (expanded perlite sand and carbonate filler – limestone-shell rock) in cement-lime light plaster on the physico-mechanical properties of the mixtures under equal workability conditions of mixtures are analyzed based on experimental-statistical modeling. The results of the physico-mechanical and operational experiments confirm the rationality of using porous fillers and additives to improve certain specific properties of the final product. The so-called Monte-Carlo method is implemented for determining an optimal composition of multicomponent cement-lime light plaster, based on multivariate statistical modeling and iterative random scanning of property fields. According to the results of the computational experiment, a composition that reduces the number of expensive mixture components and improves the physical and mechanical characteristics of the resulting composition is selected.","PeriodicalId":53887,"journal":{"name":"Electronic Journal of the Faculty of Civil Engineering Osijek-e-GFOS","volume":"8 1","pages":"31-36"},"PeriodicalIF":0.2,"publicationDate":"2017-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45810059","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}
Currently, only empirical design methods are used in the application of well-known standards for pavement structure design. Given this fact, it is ass
目前，在路面结构设计中应用知名标准时，只采用经验设计方法。考虑到这一事实，这是愚蠢的
{"title":"ANALYSES OF THE INFLUENCE OF MATERIAL CHARACTERISTICS ON PAVEMENT DESIGN","authors":"Nino Vukobratović, I. Barišić, S. Dimter","doi":"10.13167/2017.14.2","DOIUrl":"https://doi.org/10.13167/2017.14.2","url":null,"abstract":"Currently, only empirical design methods are used in the application of well-known standards for pavement structure design. Given this fact, it is ass","PeriodicalId":53887,"journal":{"name":"Electronic Journal of the Faculty of Civil Engineering Osijek-e-GFOS","volume":"8 1","pages":"8-19"},"PeriodicalIF":0.2,"publicationDate":"2017-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.13167/2017.14.2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42160098","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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