Pub Date : 2022-12-09DOI: 10.29039/2308-0191-2022-10-4-26-30
Valentin Pospehov, Viktor V. Bakhmisov, L. Stavnitser, Vyacheslav Orehov
Engineering calculations in the spatial formulation, as well as the results of field observations, show a significant decrease in lateral displacements of the foundation pit retaining walls in the area of the corner zones. At the same time, in design practice, a large number of decisions are made on the basis of calculations in a flat formulation. For pits with a depth of more than 10 m, the influence of corner zones can make a significant contribution to the reduction of movements and, as a result, internal forces in the retaining walls and restraint systems. The underestimation of the corner effect leads to an increase of the retaining structures construction cost. This article presents the results of FEM calculations studies of the monolithic reinforced concrete wall functioning in the corner zones of pit in sandy soils. As a result, it was revealed that the movement of the diaphragm wall in the area of the corner zones of the foundation pit is influenced by such factors as: the pit depth, the angle between retaining walls, and the stiffness of the retaining wall and struts. At the same time, the properties of the sand and the stiffness of the retaining wall and struts do not affect the distribution of displacements in the corner zones.
{"title":"Stiffness influence in pit corner zones on the retaining walls movement in sandy soils","authors":"Valentin Pospehov, Viktor V. Bakhmisov, L. Stavnitser, Vyacheslav Orehov","doi":"10.29039/2308-0191-2022-10-4-26-30","DOIUrl":"https://doi.org/10.29039/2308-0191-2022-10-4-26-30","url":null,"abstract":"Engineering calculations in the spatial formulation, as well as the results of field observations, show a significant decrease in lateral displacements of the foundation pit retaining walls in the area of the corner zones. At the same time, in design practice, a large number of decisions are made on the basis of calculations in a flat formulation. For pits with a depth of more than 10 m, the influence of corner zones can make a significant contribution to the reduction of movements and, as a result, internal forces in the retaining walls and restraint systems. The underestimation of the corner effect leads to an increase of the retaining structures construction cost. \u0000This article presents the results of FEM calculations studies of the monolithic reinforced concrete wall functioning in the corner zones of pit in sandy soils. As a result, it was revealed that the movement of the diaphragm wall in the area of the corner zones of the foundation pit is influenced by such factors as: the pit depth, the angle between retaining walls, and the stiffness of the retaining wall and struts. At the same time, the properties of the sand and the stiffness of the retaining wall and struts do not affect the distribution of displacements in the corner zones.","PeriodicalId":40951,"journal":{"name":"Russian Journal of Building Construction and Architecture","volume":"66 1","pages":""},"PeriodicalIF":0.2,"publicationDate":"2022-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89272728","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 : 2022-12-09DOI: 10.29039/2308-0191-2022-10-4-121-125
N. Shipilova
The purpose of the study is to develop an original database of reference information for organizational and technological calculations.
这项研究的目的是为组织和技术计算发展一个原始的参考资料数据库。
{"title":"FORMATION OF RESOURCE-SAVING PARKS OF CONSTRUCTION MACHINES WITH THE CREATION OF AN ORIGINAL DATABASE OF REFERENCE INFORMATION FOR ORGANISATIONAL AND TECHNOLOGICAL CALCULATIONS","authors":"N. Shipilova","doi":"10.29039/2308-0191-2022-10-4-121-125","DOIUrl":"https://doi.org/10.29039/2308-0191-2022-10-4-121-125","url":null,"abstract":"The purpose of the study is to develop an original database of reference information for organizational and technological calculations.","PeriodicalId":40951,"journal":{"name":"Russian Journal of Building Construction and Architecture","volume":"54 1","pages":""},"PeriodicalIF":0.2,"publicationDate":"2022-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81154647","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 : 2022-12-09DOI: 10.29039/2308-0191-2022-10-4-11-15
V. Snezhko, Dmitriy Korotkoruchko, Olga V. Kondrutieva
In Russia, there are significant fluctuations in climatic conditions throughout the country, the damage from hydrometeorological phenomena is 80–90% of the total damage of a natural nature. For the territory of the Krasnoyarsk Territory, five types of dangerous hydrological phenomena are characteristic, leading to the occurrence of material damage: traffic jams, ice jams, low low water, floods and floods. The research material was long-term data on fixing dangerous hydrological phenomena with fixed material damage for 30 years. The analysis of dangerous hydrological phenomena was carried out, the stationarity of the time series was checked, and conclusions were drawn about the statistical significance of the obtained trends. Information about the issued forecasts for each hydrological phenomenon is analyzed, information about their lead time is systematized. Research data can be used by institutions and organizations authorized to conduct environmental monitoring in determining regional lists and criteria for hazardous natural phenomena.
{"title":"Dangerous hydrological phenomena of the Krasnoyarsk Territory and the lead time of their forecast","authors":"V. Snezhko, Dmitriy Korotkoruchko, Olga V. Kondrutieva","doi":"10.29039/2308-0191-2022-10-4-11-15","DOIUrl":"https://doi.org/10.29039/2308-0191-2022-10-4-11-15","url":null,"abstract":"In Russia, there are significant fluctuations in climatic conditions throughout the country, the damage from hydrometeorological phenomena is 80–90% of the total damage of a natural nature. For the territory of the Krasnoyarsk Territory, five types of dangerous hydrological phenomena are characteristic, leading to the occurrence of material damage: traffic jams, ice jams, low low water, floods and floods. The research material was long-term data on fixing dangerous hydrological phenomena with fixed material damage for 30 years. The analysis of dangerous hydrological phenomena was carried out, the stationarity of the time series was checked, and conclusions were drawn about the statistical significance of the obtained trends. Information about the issued forecasts for each hydrological phenomenon is analyzed, information about their lead time is systematized. Research data can be used by institutions and organizations authorized to conduct environmental monitoring in determining regional lists and criteria for hazardous natural phenomena.","PeriodicalId":40951,"journal":{"name":"Russian Journal of Building Construction and Architecture","volume":"12 1","pages":""},"PeriodicalIF":0.2,"publicationDate":"2022-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90381341","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 : 2022-12-09DOI: 10.29039/2308-0191-2022-10-4-21-25
A. Trufanov, Aleksey Bershov, Vyacheslav Orehov
The article is devoted to the issue of definition in situ vertical effective stress in weakly filtering soils (WFS). Shown. that the calculation of the vertical effective stress in soils, taking into account the weighing action of water, is valid only for the special case of the hydrostatic distribution of pore pressure over depth. In this regard, it is proposed to determine the vertical effective stress by the difference between total and pore pressure, in accordance with the principle of effective stresses of K. Terzagi, as more universal. The existing variants of pore pressure calculations in weakly filtering soils are considered. The example shows that zeroing the pore pressure leads to an overestimation of the in situ effective stress in the WFS, and the hydrostatic distribution, as a rule, leads to its underestimation. A computational method for determining the vertical effective stress in the WFS by linear interpolation is presented. Formulas for determining pore pressure and vertical effective stress in the WFS layer are proposed. The features of the application of the interpolation method for different values of groundwater levels in aquifers in depth are considered. A necessary condition for calculating the pore pressure by interpolation is information about the level of groundwater in the underlying aquifer, which must be taken into account when performing engineering-geological surveys. Examples of comparison of the results obtained by various calculation methods with the data of direct measurements of pore pressure by the dissipation method and the method of filled wells are given. The analysis showed that the values of pore pressure in the WFS layers calculated by linear interpolation correspond to direct measurements of pore pressure to the greatest extent. Thus, the linear interpolation method is the most reliable calculation method and can be recommended for use when performing geotechnical calculations.
{"title":"DETERMINATION OF PORE PRESSURE IN POORLY FILTERING SOILS BY LINEAR INTERPOLATION","authors":"A. Trufanov, Aleksey Bershov, Vyacheslav Orehov","doi":"10.29039/2308-0191-2022-10-4-21-25","DOIUrl":"https://doi.org/10.29039/2308-0191-2022-10-4-21-25","url":null,"abstract":"The article is devoted to the issue of definition in situ vertical effective stress in weakly filtering soils (WFS). Shown. that the calculation of the vertical effective stress in soils, taking into account the weighing action of water, is valid only for the special case of the hydrostatic distribution of pore pressure over depth. In this regard, it is proposed to determine the vertical effective stress by the difference between total and pore pressure, in accordance with the principle of effective stresses of K. Terzagi, as more universal. The existing variants of pore pressure calculations in weakly filtering soils are considered. The example shows that zeroing the pore pressure leads to an overestimation of the in situ effective stress in the WFS, and the hydrostatic distribution, as a rule, leads to its underestimation. A computational method for determining the vertical effective stress in the WFS by linear interpolation is presented. Formulas for determining pore pressure and vertical effective stress in the WFS layer are proposed. The features of the application of the interpolation method for different values of groundwater levels in aquifers in depth are considered. A necessary condition for calculating the pore pressure by interpolation is information about the level of groundwater in the underlying aquifer, which must be taken into account when performing engineering-geological surveys. Examples of comparison of the results obtained by various calculation methods with the data of direct measurements of pore pressure by the dissipation method and the method of filled wells are given. The analysis showed that the values of pore pressure in the WFS layers calculated by linear interpolation correspond to direct measurements of pore pressure to the greatest extent. Thus, the linear interpolation method is the most reliable calculation method and can be recommended for use when performing geotechnical calculations.","PeriodicalId":40951,"journal":{"name":"Russian Journal of Building Construction and Architecture","volume":"51 1","pages":""},"PeriodicalIF":0.2,"publicationDate":"2022-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90423863","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 : 2022-12-09DOI: 10.29039/2308-0191-2022-10-4-71-75
E. Bazarova, Vladimir Shipkov
The formation of a bright representative of the neo-Russian style of architect, architectural historian and art critic I.E. Bondarenko partially coincided with the period of mature eclecticism. Of interest is his attitude to the work of his contemporaries, recorded in the "Notes of the artist-architect" written by him in 1939-1940, which were published only in 2018. A separate theme of the memoirs is the evaluation of the period of eclecticism in the architecture of Russia. Together with the comments on the notes, plans and exhibition programs stored in the Russian State Archive of Literature and Arts (RGALI), they demonstrate the wide scope of his criticism.
{"title":"I.E. BONDARENKO'S CRITICISM OF ARCHITECTURAL PRACTICE THE ECLECTIC PERIOD","authors":"E. Bazarova, Vladimir Shipkov","doi":"10.29039/2308-0191-2022-10-4-71-75","DOIUrl":"https://doi.org/10.29039/2308-0191-2022-10-4-71-75","url":null,"abstract":"The formation of a bright representative of the neo-Russian style of architect, architectural historian and art critic I.E. Bondarenko partially coincided with the period of mature eclecticism. Of interest is his attitude to the work of his contemporaries, recorded in the \"Notes of the artist-architect\" written by him in 1939-1940, which were published only in 2018. A separate theme of the memoirs is the evaluation of the period of eclecticism in the architecture of Russia. Together with the comments on the notes, plans and exhibition programs stored in the Russian State Archive of Literature and Arts (RGALI), they demonstrate the wide scope of his criticism.","PeriodicalId":40951,"journal":{"name":"Russian Journal of Building Construction and Architecture","volume":"51 1","pages":""},"PeriodicalIF":0.2,"publicationDate":"2022-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83823352","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 : 2022-12-09DOI: 10.29039/2308-0191-2022-10-4-116-120
S. Evtushenko, Viktoriya Lyepikhova, A. Lyashenko, Andrei Riabous
The article discusses methods for determining the dustiness of air in the production of building materials. The advantages and disadvantages of such methods as optical and radioisotope are noted. For continuous monitoring of the concentration of dust flow in ventilation systems, acoustic method is singled out as a promising. It's based on the analysis of the acoustic signal from the interaction of moving dust particles with the duct wall. The elements of this information chain, its features in the frequency domain and ways of extracting useful information by computer software processing are analyzed in detail. The features of an acoustic signal using the Fourier integral to obtain a continuous spectrum of a non-periodic process containing a random component are considered. The obtained Fourier spectra make it possible to compare the efficiency of various pulse forms, since they are important in the study of shock processes of dust particles with the duct wall. The use of the direct integral Fourier transform makes it possible to isolate the frequency spectrum consisting of the main and timbre harmonics. Taking into account the timbre harmonics of the spectrum makes it possible to obtain reliable information about the concentration of dust flow at enterprises producing construction materials.
{"title":"FEATURES OF THE ACOUSTIC SIGNAL IN THE CONTINUOUS MONITORING OF DUST IN THE PRODUCTION OF BUILDING MATERIALS","authors":"S. Evtushenko, Viktoriya Lyepikhova, A. Lyashenko, Andrei Riabous","doi":"10.29039/2308-0191-2022-10-4-116-120","DOIUrl":"https://doi.org/10.29039/2308-0191-2022-10-4-116-120","url":null,"abstract":"The article discusses methods for determining the dustiness of air in the production of building materials. The advantages and disadvantages of such methods as optical and radioisotope are noted. For continuous monitoring of the concentration of dust flow in ventilation systems, acoustic method is singled out as a promising. It's based on the analysis of the acoustic signal from the interaction of moving dust particles with the duct wall. The elements of this information chain, its features in the frequency domain and ways of extracting useful information by computer software processing are analyzed in detail. The features of an acoustic signal using the Fourier integral to obtain a continuous spectrum of a non-periodic process containing a random component are considered. The obtained Fourier spectra make it possible to compare the efficiency of various pulse forms, since they are important in the study of shock processes of dust particles with the duct wall. The use of the direct integral Fourier transform makes it possible to isolate the frequency spectrum consisting of the main and timbre harmonics. Taking into account the timbre harmonics of the spectrum makes it possible to obtain reliable information about the concentration of dust flow at enterprises producing construction materials.","PeriodicalId":40951,"journal":{"name":"Russian Journal of Building Construction and Architecture","volume":"7 1","pages":""},"PeriodicalIF":0.2,"publicationDate":"2022-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87751261","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 : 2022-12-09DOI: 10.29039/2308-0191-2022-10-4-61-65
E. Orlov
The article presents information about K.S. Malevich's painting “The Black Suprematist Square”, which greatly influenced the development of a new style of avant–garde art - suprematism. It is proved that the square is the main geometric figure in the formation of images. The information is given that K.S. Malevich's new style is a synthesis of fine art, philosophy and religion, which allowed him to further influence the development of other types of art. Despite its apparent simplicity of the image, the black square continues to arouse the interest of many researchers of contemporary art today.
{"title":"THE PAINTING \"THE BLACK SUPREMACIST SQUARE\" BY K.S. MALEVICH IS A SYMBOL OF NEW ART","authors":"E. Orlov","doi":"10.29039/2308-0191-2022-10-4-61-65","DOIUrl":"https://doi.org/10.29039/2308-0191-2022-10-4-61-65","url":null,"abstract":"The article presents information about K.S. Malevich's painting “The Black Suprematist Square”, which greatly influenced the development of a new style of avant–garde art - suprematism. It is proved that the square is the main geometric figure in the formation of images. The information is given that K.S. Malevich's new style is a synthesis of fine art, philosophy and religion, which allowed him to further influence the development of other types of art. Despite its apparent simplicity of the image, the black square continues to arouse the interest of many researchers of contemporary art today.","PeriodicalId":40951,"journal":{"name":"Russian Journal of Building Construction and Architecture","volume":"34 1","pages":""},"PeriodicalIF":0.2,"publicationDate":"2022-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90112330","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 : 2022-12-09DOI: 10.29039/2308-0191-2022-10-4-46-50
O. Korol, Ekaterina Dehtyar', A. Petrov
The overhaul of buildings provides for an increase in their thermal protection through the use of effective thermal insulation materials in structural and technological solutions of enclosing structures. This circumstance necessitates the development of tools for selecting optimal parameters of thermal insulation materials in relation to the inter-repair service life of buildings, as well as determining the projected need for their use in repair and construction production.
{"title":"IMPROVING THE CALENDAR PLANNING OF CAPITAL REPAIRS OF BUILDINGS, TAKING INTO ACCOUNT THE FORECAST OF CONSUMPTION AND PROLONGATION OF THE SERVICE LIFE OF THERMAL INSULATION MATERIALS","authors":"O. Korol, Ekaterina Dehtyar', A. Petrov","doi":"10.29039/2308-0191-2022-10-4-46-50","DOIUrl":"https://doi.org/10.29039/2308-0191-2022-10-4-46-50","url":null,"abstract":"The overhaul of buildings provides for an increase in their thermal protection through the use of effective thermal insulation materials in structural and technological solutions of enclosing structures. This circumstance necessitates the development of tools for selecting optimal parameters of thermal insulation materials in relation to the inter-repair service life of buildings, as well as determining the projected need for their use in repair and construction production.","PeriodicalId":40951,"journal":{"name":"Russian Journal of Building Construction and Architecture","volume":"34 1","pages":""},"PeriodicalIF":0.2,"publicationDate":"2022-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72961996","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 : 2022-12-09DOI: 10.29039/2308-0191-2022-10-4-81-85
Yu.G. Losev, K. Losev
The article provides a formalized model of object-oriented automated process control technologies at the construction facilities life cycle stages. The subject area is the life cycle of buildings and structures, the object of the analysis is the formalization of automated technologies for the construction facilities life cycle. The research uses the method of formalized description based on the constructive direction of the theory of algorithms, operating with the concept of K-processes. An important methodological principle of generating K-processes for obtaining constructive objects is introduced, such that K-processes are always object-oriented and are feasible only for a specific class of construction objects in the common data environment. A formalized model and scheme of development, management and generation of K-processes are proposed as the basis of object-oriented automated technologies for the construction facilities life cycle stages.
{"title":"FORMALIZATION FOUNDATIONS TO COMPUTER AUTOMATED LIFE CYCLE MANAGEMENT TECHNOLOGIES OF CONSTRUCTION FACILITIES","authors":"Yu.G. Losev, K. Losev","doi":"10.29039/2308-0191-2022-10-4-81-85","DOIUrl":"https://doi.org/10.29039/2308-0191-2022-10-4-81-85","url":null,"abstract":"The article provides a formalized model of object-oriented automated process control technologies at the construction facilities life cycle stages. The subject area is the life cycle of buildings and structures, the object of the analysis is the formalization of automated technologies for the construction facilities life cycle. The research uses the method of formalized description based on the constructive direction of the theory of algorithms, operating with the concept of K-processes. An important methodological principle of generating K-processes for obtaining constructive objects is introduced, such that K-processes are always object-oriented and are feasible only for a specific class of construction objects in the common data environment. A formalized model and scheme of development, management and generation of K-processes are proposed as the basis of object-oriented automated technologies for the construction facilities life cycle stages.","PeriodicalId":40951,"journal":{"name":"Russian Journal of Building Construction and Architecture","volume":"19 1","pages":""},"PeriodicalIF":0.2,"publicationDate":"2022-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74495864","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 : 2022-12-09DOI: 10.29039/2308-0191-2022-10-4-41-45
D. Vasil'ev, Viktor Volosuhin, V. Morgunov
The article provides the results of a full-scale survey of the Pravoegorlyk Canal, commissioned in 1957. The reasons for the deterioration of operational indicators due to climatic changes in the Stavropol Territory were analyzed.
{"title":"Full-scale survey of the long-operated Pravoyegorlyk canal in the conditions of climatic changes in the Stavropol Territory","authors":"D. Vasil'ev, Viktor Volosuhin, V. Morgunov","doi":"10.29039/2308-0191-2022-10-4-41-45","DOIUrl":"https://doi.org/10.29039/2308-0191-2022-10-4-41-45","url":null,"abstract":"The article provides the results of a full-scale survey of the Pravoegorlyk Canal, commissioned in 1957. The reasons for the deterioration of operational indicators due to climatic changes in the Stavropol Territory were analyzed.","PeriodicalId":40951,"journal":{"name":"Russian Journal of Building Construction and Architecture","volume":"34 1","pages":""},"PeriodicalIF":0.2,"publicationDate":"2022-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77781118","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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