Military Technical Collection最新文献

{"title":"Promising directions for increasing reliability radio-electronic equipment based on physical diagnostics using information technologies","authors":"S. Hlukhov, L. Sakovych, Y. Ryzhov, O. Babiy, A. Halosa","doi":"10.33577/2312-4458.26.2022.42-48","DOIUrl":"https://doi.org/10.33577/2312-4458.26.2022.42-48","url":null,"abstract":"In modern economic conditions, the renewal of the fleet of radio-electronic equipment is carried out relatively slowly. The subsequent operation of complex objects of high-cost radio-electronic equipment with a standard operating life of 25-30 years becomes possible with the availability of high-quality diagnostic, metrological and information support, the use of which will allow to determine the technical condition of objects with high reliability and to predict the residual life. \u0000Known methods for diagnosing typical replacement elements as components of electronic equipment blocks are based on comparing output reactions with reference ones, which makes it possible to determine their technical condition at the moment. This also causes the difficulty of performing the third function of technical diagnostics - forecasting the residual resource. These reasons lead to the development of diagnostic methods that will allow determining the technical condition of typical replacement elements, as well as making predictions with high reliability, which, in turn, dictated the need for forced testing of typical elements for reliability. The result of such tests was to obtain the dependencies of diagnostic parameters on the operating time, the comparison of which with those obtained during routine maintenance will allow solving the above problems. To improve the reliability of the diagnosis, it is proposed to combine diagnostic methods. \u0000The article presents an overview of the possibilities of diagnostic support, mathematical models of physical diagnostics and forecasting of the technical condition, identifies the directions for further research and substantiates the feasibility of developing new solutions to improve the reliability of radio-electronic equipment.","PeriodicalId":410766,"journal":{"name":"Military Technical Collection","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126552509","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":"Method of increasing the efficiency of the switch node of the information communication network for special purpose in the conditions of combat use","authors":"B. Volochiy, A. Kushyk, Yuriy Salnyk, V. Onyshchenko, P. Каzаn","doi":"10.33577/2312-4458.26.2022.3-12","DOIUrl":"https://doi.org/10.33577/2312-4458.26.2022.3-12","url":null,"abstract":"The peculiarity of the special purpose communication information network is that its functioning is influenced by the tactical situation. In particular, it determines the intensity of the flow of packets with information about the enemy's moving objects from reconnaissance and signaling complexes to the switching node, and from it to the control point and means of destruction, depending on the probable nature of enemy action. In combat applications, the information network operates simultaneously with fast and slow packet flows. \u0000At the same time, the packet delay in the switching node should not exceed the allowable value. Excessive packet delay results in the loss of relevance of transmitted messages and, consequently, in the loss of intelligence data. The proposed method of eliminating excessive delay involves the formation of two queues of packets in the switching node. Withdrawal of service packages from two queues is carried out using a new adaptive procedure. \u0000An adaptive switch has been introduced into the structure of the switching node, designed to withdraw packets from queues to the packet service system. When selecting a packet queue, the adaptive switch compares the number of service requests from each queue. The method assumes that the number of service requests from the fast packet flow queue determines the number of packets that are in the queue. The number of requests that are formed from the queue of slow-flow packets has two components: the number of real and the number of conditional requests. Actual applications take into account the number of packets in the queue. \u0000Real requests take into account the number of packets in the queue. Conditional requests take into account the delay time, since for each missed cycle of the packet's withdrawal from the slow flow queue, the adaptive switch generates a conditional request. Therefore, the number of requests for a slow stream grows even without packets entering the queue. A comparative study of options for implementing the adaptive procedure has been carried out. The proposed method for eliminating excessive packet delay in the switching node provides an increase in the efficiency of the functioning of a special-purpose information network as a whole.","PeriodicalId":410766,"journal":{"name":"Military Technical Collection","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126752163","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":"Influence of the initial velocity of the projectile on the kinematics of the projectile","authors":"P. Tkachuk, L. Velychko, M. Voytovych, M. Sorokatyi","doi":"10.33577/2312-4458.26.2022.22-27","DOIUrl":"https://doi.org/10.33577/2312-4458.26.2022.22-27","url":null,"abstract":"The work uses a mathematical model for determining the frontal air resistance to the movement of the projectile, which based on solving the inverse problem of dynamics. Knowing the flight range at certain angles of aiming given in the firing tables, the functional dependence of the force of the frontal air resistance to the movement of the projectile on its speed and other factors is determined, taking into account the effect on the projectile of its weight and Coriolis force. \u0000It has been established that, depending on the aiming angle, the projectile speed during flight can combine stages of movement with supersonic,transonic, subsonic, decreasing or increasing speeds. Therefore, the functional dependence of the frontal drag force is determined for each stage separately. \u0000 The influence of the initial velocity and the deviation from the nominal value for the OF-462ZH projectile fired from a 122-mm D-30 howitzer, charge is investigated. Depending on the aiming angle, the projectile speed during flight can combine stages of movement with supersonic,transonic, subsonic, decreasing or increasing speeds. \u0000It was found that the displacement values of the coordinates of the zeroing point of the trajectory of the projectile, determined on the basis of the proposed mathematical model, are almost the same in modulus when the initial velocity deviates by +∆V0; the tabular values of the displacements of the trajectory zeroing point, in general, are large in magnitude from the theoretical; the greatest discrepancy between them is achieved at an aiming angle of 45o00’; determination of which of the displacement values, theoretical or tabular, are real, is possible during field tests.","PeriodicalId":410766,"journal":{"name":"Military Technical Collection","volume":"115 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133687216","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":"Investigation of parameters of leakage of toxic and explosive substances and gases under the action of high pressure from tanks of the special purpose during","authors":"M. Semerak, T. Hlova, B. Hlova, O. Petruchenko","doi":"10.33577/2312-4458.25.2021.49-53","DOIUrl":"https://doi.org/10.33577/2312-4458.25.2021.49-53","url":null,"abstract":"Tanks for the storage of oil products and toxic substances in warehouses are the main ones. They can be in the form of separate tanks or a group of tanks. The most widespread are vertical steel tanks with a stationary roof that a placed in open areas. The tanks heat up, and the intensity of evaporation of the oil product increases in case of fire. If there is a permanent roof, the pressure in the tank will increase. If the capacity of the breathing valves is less than the intensity of evaporation then there is a risk of explosion. Explosions in the tank often lead to the separation of the bottom, and the side cylindrical surface and the roof fly away instantly, spilling oil on neighboring tanks and the territory of the tank’s park. Then the combustion area increases intensively. The destruction of the integrity of the tank, due to the separation of the bottom, contributes to temperature and power stresses, the value of which increases with increasing temperature of their heating and increasing pressure, respectively. The values of temperature stresses are added to the power stresses caused by pressure, and when the critical value is reached, destruction occurs. \u0000In the article by the method of mathematical modeling using the laws of thermodynamics and mechanics of liquids and gases, analytical dependences for research of parameters of leakage of toxic substances and gases at action of high pressure from capacities at their storage are received. Saint-Venant’s principle was used to model the gas flow rate process. The dependence of the duration of gas leakage from special purpose tanks at the change of the area of the emergency hole and the pressure drop is obtained. The obtained results allow determining the velocity and mass flow rate of the gas depending on the area of the hole, the time flow, and the difference of pressure. Therefore, the task of research the emergency situations of engineering cylindrical tanks under the influence of temperature and pressure, which leads to the spillage of toxic substances and gassiness is actual. The researches results are presented graphically.","PeriodicalId":410766,"journal":{"name":"Military Technical Collection","volume":"203 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123041202","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":"Accounting for real meteorological conditions at the time of UAV flight mission planning","authors":"P. Tkachyck, O. Kotcemyr, S. Sokolovskyi, D. Bilous","doi":"10.33577/2312-4458.25.2021.54-60","DOIUrl":"https://doi.org/10.33577/2312-4458.25.2021.54-60","url":null,"abstract":"The article is dedicated to the the problem of not considering the real meteorological conditions in planning the flight task of the unmanned aerial vehicle (UAV) A1-CM Furia . Unmanned aerial system(UAS) A1-CM  Furia  has been developed and manufactured by LLC SPC Athlon Avia since 2014. Within 2019-2020, the UAS passed a full spectrum of state tests and was adopted by the Armed Forces of Ukraine. The main criteria that this UAS meets are the detection and tracking of enemy objectives, equipment maintenance and target  reconnaissance. Among the peculiarities of UAV application are  performance of tasks in adverse meteorological conditions, the use of radio-electronic suppression by the opposing parties, significant spatial characteristics of the areas of responsibility of units and subdivisions for reconnaissance and engagement. \u0000The change in the charge current of the battery depending on the air temperature and the change in the charge current of the battery depending on the wind speed in different meteorological conditions were analyzed  in the article. \u0000The article presents experimental results that determine the order of current consumption for battery time depending on meteorological factors, such as wind speed and air temperature. These results indicate that the UAV A1-CM Furia during the task accomplishment  can not meet the flight characteristics that are defined in the flight operation manual UAS (FAM). The FAM does not separate the differences in the use of UAV  in different meteorological conditions. This causes possible errors in calculating the maximum length of the route and the maximum possible time in the air. \u0000 In the article it was proposed to develop a correction  for the use of UAV depending on changes in wind speed and temperature . \u0000During the assessing of possible corrections for the use of UAV at different wind speeds and air temperatures, the accuracy of determining the possible values of the maximum route length and maximum time of UAV in the air allows us to calculate more accurate data for future tasks accomplisment. \u0000Experimental methods of calculating corrections took a large part in the specific study of information without taking into account the real meteorological conditions while planning the flight task of the UAV A1-CM Furia. \u0000The obtained results show that without further consideration of meteorological conditions while planning a flight task there may be inaccuracies.","PeriodicalId":410766,"journal":{"name":"Military Technical Collection","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120946430","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 action of a projectiles on special protective structures and ways to increase their protective capacity","authors":"A. Andrukhiv, A. Baranov, N. Huzyk, B. Sokil, M. Sokil","doi":"10.33577/2312-4458.25.2021.95-100","DOIUrl":"https://doi.org/10.33577/2312-4458.25.2021.95-100","url":null,"abstract":"A method for studying the reaction of elastic elements of protective structures to a series of impact actions of shells has been developed. In the work, the elastic elements of the protective structure are modeled by homogeneous beams, and the dynamic action of the shells is simulated by instantaneous point-applied forces. A mathematical model of this dynamic process is constructed, which is a boundary value problem for a hyperbolic equation with an irregular right-hand side. The latter is described using Dirac delta functions. Cases of both fixed and free ends of protective elements are considered. The main ideas of perturbation methods are used for the researches carried out in the work. Analytical dependences for the description of elastic deformations of a protective element which are basic for definition of its strength characteristics are received. They and the graphical dependences built on their basis for specific cases show that the dynamic deformations of the protective element for the fixed ends are greater in the case of the projectile closer to its middle, at the same time for the free ends – closer to the end. With regard to the modernization of protective structures, the dynamic effect on their elements can be reduced by using elastic reinforcement or changing the method of fixing the ends of the protective element: elastic or with a certain angle of inclination of the bearing surfaces. It is proposed to use special plastics, soil layer, flexible wood flooring, etc. as elastic reinforcement. The technique used in the work is the basis for determining the strength characteristics of protective elements, and from so – to check the reliability of the protective structure; study of the dynamics of protective and similar types of structures, taking into account the nonlinear characteristics of the elastic elements of protective structures; study of more complex oscillations of elements of protective structures. In the case of a series of impacts, it is obvious that the amplitude of deflection of the protective element after each impact will increase over time, because the model does not take into account the force of viscoelastic friction. These tasks will be the subject of further research.","PeriodicalId":410766,"journal":{"name":"Military Technical Collection","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130403433","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":"Application of the method of analysis of hierarchies to assess the software of complexes of automation means","authors":"Y. Budaretskiy, Y. Shchavinskiy, V. Kuznetsov, S. Nikolayev","doi":"10.33577/2312-4458.25.2021.3-12","DOIUrl":"https://doi.org/10.33577/2312-4458.25.2021.3-12","url":null,"abstract":"The article analyzes the current state of the methods for assessing the software of complexes of automation of fire control of artillery systems supplied to the artillery units of the Ground Forces of the Armed Forces of Ukraine. The actual problem of verification and certification of the developed samples of special software of such complexes is determined, which consists in the absence of established assessment procedures, a large subjective component in the existing methods for assessing software, the inconsistency of their norms in accordance with state and international standards. In the proposed conceptual model for assessing the quality of software, new metrics have been defined that will characterize special software that ensures the functioning of complexes of fire control automation systems for artillery subunits when they perform fire engagement tasks and which reflects the peculiarity of the use of artillery systems. To assess the proposed new metrics, the elements of their assessment and the mathematical apparatus for carrying out calculations are determined and substantiated. To determine the magnitude of the influence of indicators on the overall quality of software, a new approach is proposed, which consists in applying the method of analyzing hierarchies when determining the priority of indicators of elements, metrics, criteria and factors at each level of the hierarchy. The use of multicriteria analysis of the hierarchy analysis method ensures that the subjectivity of experts is avoided when assessing the quality of special software, it makes it possible to identify bottlenecks in the developed tactical and technical requirements for the software of the indicated complexes of automation tools for artillery systems and takes into account the mutual influence of indicators on the overall quality. A certain improved methodology, which more fully covers the software assessment process, will in the future be the basis for creating a quality assurance system for software of automation systems and forming a tool for their certification.","PeriodicalId":410766,"journal":{"name":"Military Technical Collection","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116340210","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":"Modeling and forecasting the probability of the states of technical support systems for the use of weapons and military equipment","authors":"A. Ugol'nikov, B. Demianchuk, S. Shelukhin, O. Malynovskyi, A. Kosenko","doi":"10.33577/2312-4458.25.2021.84-94","DOIUrl":"https://doi.org/10.33577/2312-4458.25.2021.84-94","url":null,"abstract":"The article discusses a probabilistic model of processes in complex systems of technical support for military vehicles. One of the methods for studying such complex systems is their representation in the form of a set of typical states in which the system can be. Transitions occur between states, the intensities and probabilities of which are assumed to be known. The system is graphically represented using a graph of states and transitions, and the subject of research is the probability of finding the technical support system in these states. The graph of states and transitions is associated with a system of first order linear differential equations with respect to the probabilities of finding the support system in its basic states. To obtain a solution, this system must be supplemented with certain conditions. These are, firstly, the initial conditions that specify the probabilities of all states at the initial moment of time. Second, this is the normalization condition, which states that at any moment in time the sum of the probabilities of all states is equal to unity. An approximate solution to the problem is described in the literature. Such approximate solution is getting more accurate when the sought probabilities depend on time weaker. We propose a method of the exact solution of the above mentioned system of differential equations based on the use of operational calculus. In this case, the system of linear differential equations is transformed into a system of linear algebraic equations for the Laplace images of unknown probabilities. The use of matrix calculus made it possible to write down the obtained results in a compact form and to use effective numerical algorithms of linear algebra for further calculations. The model is illustrated by the example of solving the problem of technical support for the march of a battalion tactical group column, including wheeled and tracked vehicles. The boundaries of the validity of the results of a simpler approximate solution are established.","PeriodicalId":410766,"journal":{"name":"Military Technical Collection","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126578845","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":"Side wind and tank speed influence on lateral displacement of the projectile","authors":"M. Sorokatiy, M. Voytovych, L. Velychko, O. Moskalova","doi":"10.33577/2312-4458.25.2021.24-29","DOIUrl":"https://doi.org/10.33577/2312-4458.25.2021.24-29","url":null,"abstract":"This article indicates the scope of the formula for determining the magnitude of the lateral displacement of the projectile under the action of crosswind, which is used in the compilation of firing tables. \u0000This formula is valid under the following conditions: the force of frontal air resistance to the motion of the projectile is proportional to the its velocity squared; wind speed components are much smaller than the horizontal component of projectile velocity; the projectile velocity projections on the Oy and Oz axes are much smaller than the projections on the Ox axis; the dimensionless coefficient of resistance and the magnitude of the crosswind are constant values. \u0000However, in reality, the force of frontal air resistance to the motion of the projectile is only sometimes proportional to the its velocity squared; the projectile velocity projections on the Oz axis may be are much smaller than the projections on the Ox axis and may even be greater than it; the coefficient of resistance is depends on the value of the Makh number, so it can be considered constant only when shooting at short distances. \u0000The authors propose a mathematical model for determining the magnitude of the lateral displacement of the projectile under the action of crosswinds. It is believed that the force of the crosswind on the projectile depends on the following factors: air density; the maximum area of the longitudinal section of the projectile; the difference between the value of the lateral component of the wind speed and the speed of the lateral displacement of the projectile, which is raised to a certain power. \u0000The magnitude of the values of the lateral displacement of the projectile under the action of the crosswind when shooting at short distances, determined based on the proposed mathematical model, slightly differ from the values of the lateral displacement specified in the firing tables. \u0000However, with increasing firing distance, the difference between these values is constantly increasing and the value of the lateral displacement of the projectile determined theoretically is much larger than indicated in the firing tables. In addition, in this research the influence of the tank velocity on the value of the projectile lateral displacement taking into account the action of the crosswind is studied.","PeriodicalId":410766,"journal":{"name":"Military Technical Collection","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124217808","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":"Structural and functional analysis of reconnaissance and fire system and decomposition of its functions and subsystems","authors":"O. Maistrenko, O. Karavanov, A. Shcherba","doi":"10.33577/2312-4458.25.2021.38-48","DOIUrl":"https://doi.org/10.33577/2312-4458.25.2021.38-48","url":null,"abstract":"It is established that the role of reconnaissance and fire systems in the implementation of enemy fire damage in military conflicts occurring at the beginning of the XXI century. Increased  to 75%. However, it was found that the effectiveness of these systems depends on the quality of their equipment. The main factors that are often not taken into account in the acquisition are the possibility, interoperability, stability of each element, the impact of elements on the stability of each other and the functioning of the RVS as a whole. The analysis of recent research and publications has shown that as of today, the approaches to determining the composition of reconnaissance fire systems taking into account these factors are not justified. \u0000Given the above, it was decided to conduct a structural and functional analysis of the reconnaissance fire system and the decomposition of its functions and subsystems. To this end, based on the method of cluster analysis, an algorithm for combining a set of tasks performed by reconnaissance and fire systems into groups has been developed and substantiated. The method of expert evaluation was used to obtain substantiated data on the implementation of such a merger. \u0000According to the proposed algorithm, the main tasks were first identified, which involve reconnaissance and fire systems. Subsequently, an expert group was formed and the coefficient of relative competence of each member of the expert group was determined. The experts were then asked to combine the identified tasks according to their characteristics into an arbitrary number of groups. After processing the opinions of experts, 10 characteristic groups were identified. Finally, the experts were asked to combine the obtained groups in such a way that each association consisted of similar objects and the objects of different associations differed significantly. \u0000The results of the work revealed the functional interconnectedness of the tasks, processes and subsystems of the reconnaissance and fire system. It is also established that a typical reconnaissance fire system will consist of three subsystems (control, reconnaissance and fire influence), which perform specific functions for each of them.","PeriodicalId":410766,"journal":{"name":"Military Technical Collection","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115960142","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}