"Symposium on Defense Science and Technology Management 2008",sponsored by China Ordnance Society and Beijing Institute of Technology,and undertaken by Management and Economy College,Beijing Institute of Tec..."Symposium on Defense Science and Technology Management 2008",sponsored by China Ordnance Society and Beijing Institute of Technology,and undertaken by Management and Economy College,Beijing Institute of Technology,will be held in Beijing Institute of Technology in the last ten-day period展开更多
MINERAL DEPOSITS, a quarterly journal published jointly by Commission of Mineral Deposits, Geological Society of China and Institute of Mineral Deposits, Chinese Academy of Geological Sciences, is a comprehensive acad...MINERAL DEPOSITS, a quarterly journal published jointly by Commission of Mineral Deposits, Geological Society of China and Institute of Mineral Deposits, Chinese Academy of Geological Sciences, is a comprehensive academic publication and the only equivalent of American ECONOOMIC GEOLOGY in China. It covers various segments of mineral deposits and mineral resources. Original papers dealing with such basic problems of metallic and nonmetallic deposits as ore types and characteristics, geologic factors governing ore deposition, ore-forming mechanism, ore genesis aged metallogenic regularity will appear together with laboratory data acquired by means of new techniques: space is also given to other items including news about important academic activities, reviews, and discussions concerning mineral deposits. Editor-in-chief of展开更多
This article generally studies American workers’ economic conditions in the late nineteenth century. Through the examination of their poor living conditions, the author aims to expose the dark side of America in the ...This article generally studies American workers’ economic conditions in the late nineteenth century. Through the examination of their poor living conditions, the author aims to expose the dark side of America in the period of Industrialization.展开更多
Ocean science is both old and young. Ever since the 1960’s ocean development has attractedclose attention from governments of coastal countries over the world and, owing to scientists’everincreasing enthusiasm, has ...Ocean science is both old and young. Ever since the 1960’s ocean development has attractedclose attention from governments of coastal countries over the world and, owing to scientists’everincreasing enthusiasm, has become a field with brilliant prospets. The development and utilizationof ocean biological resources is an important aspect of ocan development. Marine scientific展开更多
Theoretical Studies in Literature and Art(ISSN0257-0254),launched in 1980 and published bimonthly,is one of the most highly ranked journals in China that publish original research articles in arts and humanities,espec...Theoretical Studies in Literature and Art(ISSN0257-0254),launched in 1980 and published bimonthly,is one of the most highly ranked journals in China that publish original research articles in arts and humanities,especially in literary studies.We welcome papers either in Chinese or English that concern any issues in literary theory,critical theory,aesthetics,philosophy of art,cultural studies,and展开更多
Theoretical Studies in Literature and Art(ISSN0257-0254),launched in 1980 and published bimonthly,is one of the most highly ranked journals in China that publish original research articles in arts and humanities,espec...Theoretical Studies in Literature and Art(ISSN0257-0254),launched in 1980 and published bimonthly,is one of the most highly ranked journals in China that publish original research articles in arts and humanities,especially in literary studies.We welcome papers either in Chinese or English that展开更多
Theoretical Studies in Literature and Art(ISSN0257-0254),launched in 1980 and publishe bimonthly,is one of the most highly ranked journals in China that publish original research articles in ar and humanities,especial...Theoretical Studies in Literature and Art(ISSN0257-0254),launched in 1980 and publishe bimonthly,is one of the most highly ranked journals in China that publish original research articles in ar and humanities,especially in literary studies.We welcome papers either in Chinese or English that concer any issues in literary theory,critical theory,aesthetics,philosophy of art,cultural studies,and paper focusing on China and Chinese are encouraged but not required.The papers will be peer-reviewed。展开更多
Theoretical Studies in Literature and Art(ISSN0257-0254),launched in 1980 and published bimonthly,is one of the most highly ranked journals in China that publish original research articles in arts and humanities,espec...Theoretical Studies in Literature and Art(ISSN0257-0254),launched in 1980 and published bimonthly,is one of the most highly ranked journals in China that publish original research articles in arts and humanities,especially in literary studies.We welcome papers either in Chinese or English that concern any issues in literary theory,critical theory,aesthetics,philosophy of art,cultural studies,and展开更多
This Program&Abstracts booklet comprises the consolidated Extended Abstracts submitted to the 11th International Congress for Applied Mineralogy(ICAM),held at Southwest University of Science and Technology (SWUST)...This Program&Abstracts booklet comprises the consolidated Extended Abstracts submitted to the 11th International Congress for Applied Mineralogy(ICAM),held at Southwest University of Science and Technology (SWUST)in Mianyang,China,on 07-10 July 2013.展开更多
Contributions falling into the following categories will be considered for publication: Original research papers, reviews, note. Please ensure that you select the appropriate article type from the list of options when...Contributions falling into the following categories will be considered for publication: Original research papers, reviews, note. Please ensure that you select the appropriate article type from the list of options when making your submission. Authors contributing to special issues should ensure that they select the special issue article type from this list.展开更多
The purpose of this award is to recognize work of lasting significance and impact in advancing mathematics education as an interdisciplinary field,linking mathematics,educational studies and practice.In particular,the...The purpose of this award is to recognize work of lasting significance and impact in advancing mathematics education as an interdisciplinary field,linking mathematics,educational studies and practice.In particular,the award recognizes major contributions to new knowledge and scholarship,and as well,exemplary contributions in promoting interdisciplinary collaboration in mathematics education.展开更多
Based on the Olsson-Turn’s Lagrangian, contribution to DCX reaction from the contact term has been discussed, The result shows that althought there are some cancellations between the pole-and contact-term contributio...Based on the Olsson-Turn’s Lagrangian, contribution to DCX reaction from the contact term has been discussed, The result shows that althought there are some cancellations between the pole-and contact-term contributions the contact term must be carefully included in any assessment of DCX reaction and can not be discarded a priori.展开更多
The weapons system portfolio selection problem arises at the equipment demonstration stage and deals with the military application requirements.Further,the contribution rate of the system is one of the important indic...The weapons system portfolio selection problem arises at the equipment demonstration stage and deals with the military application requirements.Further,the contribution rate of the system is one of the important indicators to evaluate the role of a system,which can facilitate the weapons system portfolio selection.Therefore,combining the system contribution rate with system portfolio selection is the focus of this study.It also focuses on calculating the contribution rates of multiple equipment systems with various types of capabilities.The contribution rate is measured by establishing a hierarchical multi-criteria value model from three dimensions.Based on the value model,the feasible portfolios are developed under certain cost constraints and the optimal weapons system portfolios are obtained by using the classification optimization selection strategy.Finally,an illustrative example is presented to verify the feasibility of the proposed model.展开更多
Equipment selection is an essential work in the research and development planning of equipment.The scientific and rational development of weapons equipment portfolios is of considerable significance to the optimizatio...Equipment selection is an essential work in the research and development planning of equipment.The scientific and rational development of weapons equipment portfolios is of considerable significance to the optimization of equipment architecture design,the adequate resources allocation,and the joint combat performance.From the system view,this paper proposes a method of weapons equipment portfolios selection(WEPS)based on the contribution rate of weapon systems,providing a new idea for weapon equipment portfolio selection.Firstly,we analyze the WEPS problem and the concept of the contribution rate under the systems background.Secondly,we propose a combat network modeling method for weapon equipment systems based on the function chain.Thirdly,we propose a WEPS method based on the contribution rate,fully considering the correlation relationships between potential weapons and the old weapon systems by the combat network model,under the limitation of capability demands and budget resources,with the objective to maximally increasing the combat ability of weapon systems.Finally,we make a case study with a specific WEPS problem where the whole calculation processes and results are analyzed and exhibited to verify the feasibility and effectiveness of the proposed method model.展开更多
Aiming at the problem that the consumption data of new ammunition is less and the demand is difficult to predict,combined with the law of ammunition consumption under different damage grades,a Bayesian inference metho...Aiming at the problem that the consumption data of new ammunition is less and the demand is difficult to predict,combined with the law of ammunition consumption under different damage grades,a Bayesian inference method for ammunition demand based on Gompertz distribution is proposed.The Bayesian inference model based on Gompertz distribution is constructed,and the system contribution degree is introduced to determine the weight of the multi-source information.In the case where the prior distribution is known and the distribution of the field data is unknown,the consistency test is performed on the prior information,and the consistency test problem is transformed into the goodness of the fit test problem.Then the Bayesian inference is solved by the Markov chain-Monte Carlo(MCMC)method,and the ammunition demand under different damage grades is gained.The example verifies the accuracy of this method and solves the problem of ammunition demand prediction in the case of insufficient samples.展开更多
The contribution rate of equipment system-of-systems architecture(ESoSA)is an important index to evaluate the equipment update,development,and architecture optimization.Since the traditional ESoSA contribution rate ev...The contribution rate of equipment system-of-systems architecture(ESoSA)is an important index to evaluate the equipment update,development,and architecture optimization.Since the traditional ESoSA contribution rate evaluation method does not make full use of the fuzzy information and uncertain information in the equipment system-of-systems(ESoS),and the Bayesian network is an effective tool to solve the uncertain information,a new ESoSA contribution rate evaluation method based on the fuzzy Bayesian network(FBN)is proposed.Firstly,based on the operation loop theory,an ESoSA is constructed considering three aspects:reconnaissance equipment,decision equipment,and strike equipment.Next,the fuzzy set theory is introduced to construct the FBN of ESoSA to deal with fuzzy information and uncertain information.Furthermore,the fuzzy importance index of the root node of the FBN is used to calculate the contribution rate of the ESoSA,and the ESoSA contribution rate evaluation model based on the root node fuzzy importance is established.Finally,the feasibility and rationality of this method are validated via an empirical case study of aviation ESoSA.Compared with traditional methods,the evaluation method based on FBN takes various failure states of equipment into consideration,is free of acquiring accurate probability of traditional equipment failure,and models the uncertainty of the relationship between equipment.The proposed method not only supplements and improves the ESoSA contribution rate assessment method,but also broadens the application scope of the Bayesian network.展开更多
A new method of effectiveness evaluation of weapon systems is set up by improving the formula of approaching degree. According to the grey target theory of grey system theory, the patterns of the weapon systems to be ...A new method of effectiveness evaluation of weapon systems is set up by improving the formula of approaching degree. According to the grey target theory of grey system theory, the patterns of the weapon systems to be evaluated are formed with the main tactical and technical performance indices of these weapon systems, thereby the standard pattern of these patterns is determined. By solving the approaching degree of patterns to their standard one and making a comparison among them, the evaluation results can be obtained.展开更多
The group-contribution (GC) methods suffer from a limitation concerning to the prediction of process-related indexes, e.g., thermal efficiency. Recently developed analytical models for thermal efficiency of organic Ra...The group-contribution (GC) methods suffer from a limitation concerning to the prediction of process-related indexes, e.g., thermal efficiency. Recently developed analytical models for thermal efficiency of organic Rankine cycles (ORCs) provide a possibility of overcoming the limitation of the GC methods because these models formulate thermal efficiency as functions of key thermal properties. Using these analytical relations together with GC methods, more than 60 organic fluids are screened for medium-low temperature ORCs. The results indicate that the GC methods can estimate thermal properties with acceptable accuracy (mean relative errors are 4.45%-11.50%);the precision, however, is low because the relative errors can vary from less than 0.1% to 45.0%. By contrast, the GC-based estimation of thermal efficiency has better accuracy and precision. The relative errors in thermal efficiency have an arithmetic mean of about 2.9% and fall within the range of 0-24.0%. These findings suggest that the analytical equations provide not only a direct way of estimating thermal efficiency but an accurate and precise approach to evaluating working fluids and guiding computer-aided molecular design of new fluids for ORCs using GC methods.展开更多
文摘"Symposium on Defense Science and Technology Management 2008",sponsored by China Ordnance Society and Beijing Institute of Technology,and undertaken by Management and Economy College,Beijing Institute of Technology,will be held in Beijing Institute of Technology in the last ten-day period
文摘MINERAL DEPOSITS, a quarterly journal published jointly by Commission of Mineral Deposits, Geological Society of China and Institute of Mineral Deposits, Chinese Academy of Geological Sciences, is a comprehensive academic publication and the only equivalent of American ECONOOMIC GEOLOGY in China. It covers various segments of mineral deposits and mineral resources. Original papers dealing with such basic problems of metallic and nonmetallic deposits as ore types and characteristics, geologic factors governing ore deposition, ore-forming mechanism, ore genesis aged metallogenic regularity will appear together with laboratory data acquired by means of new techniques: space is also given to other items including news about important academic activities, reviews, and discussions concerning mineral deposits. Editor-in-chief of
文摘This article generally studies American workers’ economic conditions in the late nineteenth century. Through the examination of their poor living conditions, the author aims to expose the dark side of America in the period of Industrialization.
文摘Ocean science is both old and young. Ever since the 1960’s ocean development has attractedclose attention from governments of coastal countries over the world and, owing to scientists’everincreasing enthusiasm, has become a field with brilliant prospets. The development and utilizationof ocean biological resources is an important aspect of ocan development. Marine scientific
文摘Theoretical Studies in Literature and Art(ISSN0257-0254),launched in 1980 and published bimonthly,is one of the most highly ranked journals in China that publish original research articles in arts and humanities,especially in literary studies.We welcome papers either in Chinese or English that concern any issues in literary theory,critical theory,aesthetics,philosophy of art,cultural studies,and
文摘Theoretical Studies in Literature and Art(ISSN0257-0254),launched in 1980 and published bimonthly,is one of the most highly ranked journals in China that publish original research articles in arts and humanities,especially in literary studies.We welcome papers either in Chinese or English that
文摘Theoretical Studies in Literature and Art(ISSN0257-0254),launched in 1980 and publishe bimonthly,is one of the most highly ranked journals in China that publish original research articles in ar and humanities,especially in literary studies.We welcome papers either in Chinese or English that concer any issues in literary theory,critical theory,aesthetics,philosophy of art,cultural studies,and paper focusing on China and Chinese are encouraged but not required.The papers will be peer-reviewed。
文摘Theoretical Studies in Literature and Art(ISSN0257-0254),launched in 1980 and published bimonthly,is one of the most highly ranked journals in China that publish original research articles in arts and humanities,especially in literary studies.We welcome papers either in Chinese or English that concern any issues in literary theory,critical theory,aesthetics,philosophy of art,cultural studies,and
文摘This Program&Abstracts booklet comprises the consolidated Extended Abstracts submitted to the 11th International Congress for Applied Mineralogy(ICAM),held at Southwest University of Science and Technology (SWUST)in Mianyang,China,on 07-10 July 2013.
文摘Contributions falling into the following categories will be considered for publication: Original research papers, reviews, note. Please ensure that you select the appropriate article type from the list of options when making your submission. Authors contributing to special issues should ensure that they select the special issue article type from this list.
文摘The purpose of this award is to recognize work of lasting significance and impact in advancing mathematics education as an interdisciplinary field,linking mathematics,educational studies and practice.In particular,the award recognizes major contributions to new knowledge and scholarship,and as well,exemplary contributions in promoting interdisciplinary collaboration in mathematics education.
文摘Based on the Olsson-Turn’s Lagrangian, contribution to DCX reaction from the contact term has been discussed, The result shows that althought there are some cancellations between the pole-and contact-term contributions the contact term must be carefully included in any assessment of DCX reaction and can not be discarded a priori.
基金supported by the National Key R&D Program of China(2017YFC1405005)the National Natural Science Foundation of China(71690233)
文摘The weapons system portfolio selection problem arises at the equipment demonstration stage and deals with the military application requirements.Further,the contribution rate of the system is one of the important indicators to evaluate the role of a system,which can facilitate the weapons system portfolio selection.Therefore,combining the system contribution rate with system portfolio selection is the focus of this study.It also focuses on calculating the contribution rates of multiple equipment systems with various types of capabilities.The contribution rate is measured by establishing a hierarchical multi-criteria value model from three dimensions.Based on the value model,the feasible portfolios are developed under certain cost constraints and the optimal weapons system portfolios are obtained by using the classification optimization selection strategy.Finally,an illustrative example is presented to verify the feasibility of the proposed model.
基金supported by the National Natural Science Foundation of China(71690233)the Scientific Research Foundation of National University of Defense Technology(ZK19-16)the PLA military graduate student funding project.
文摘Equipment selection is an essential work in the research and development planning of equipment.The scientific and rational development of weapons equipment portfolios is of considerable significance to the optimization of equipment architecture design,the adequate resources allocation,and the joint combat performance.From the system view,this paper proposes a method of weapons equipment portfolios selection(WEPS)based on the contribution rate of weapon systems,providing a new idea for weapon equipment portfolio selection.Firstly,we analyze the WEPS problem and the concept of the contribution rate under the systems background.Secondly,we propose a combat network modeling method for weapon equipment systems based on the function chain.Thirdly,we propose a WEPS method based on the contribution rate,fully considering the correlation relationships between potential weapons and the old weapon systems by the combat network model,under the limitation of capability demands and budget resources,with the objective to maximally increasing the combat ability of weapon systems.Finally,we make a case study with a specific WEPS problem where the whole calculation processes and results are analyzed and exhibited to verify the feasibility and effectiveness of the proposed method model.
基金the Army Scientific Research(KYSZJWJK1744,012016012600B11403).
文摘Aiming at the problem that the consumption data of new ammunition is less and the demand is difficult to predict,combined with the law of ammunition consumption under different damage grades,a Bayesian inference method for ammunition demand based on Gompertz distribution is proposed.The Bayesian inference model based on Gompertz distribution is constructed,and the system contribution degree is introduced to determine the weight of the multi-source information.In the case where the prior distribution is known and the distribution of the field data is unknown,the consistency test is performed on the prior information,and the consistency test problem is transformed into the goodness of the fit test problem.Then the Bayesian inference is solved by the Markov chain-Monte Carlo(MCMC)method,and the ammunition demand under different damage grades is gained.The example verifies the accuracy of this method and solves the problem of ammunition demand prediction in the case of insufficient samples.
基金supported by the National Key Research and Development Project(2018YFB1700802)the National Natural Science Foundation of China(72071206)the Science and Technology Innovation Plan of Hunan Province(2020RC4046).
文摘The contribution rate of equipment system-of-systems architecture(ESoSA)is an important index to evaluate the equipment update,development,and architecture optimization.Since the traditional ESoSA contribution rate evaluation method does not make full use of the fuzzy information and uncertain information in the equipment system-of-systems(ESoS),and the Bayesian network is an effective tool to solve the uncertain information,a new ESoSA contribution rate evaluation method based on the fuzzy Bayesian network(FBN)is proposed.Firstly,based on the operation loop theory,an ESoSA is constructed considering three aspects:reconnaissance equipment,decision equipment,and strike equipment.Next,the fuzzy set theory is introduced to construct the FBN of ESoSA to deal with fuzzy information and uncertain information.Furthermore,the fuzzy importance index of the root node of the FBN is used to calculate the contribution rate of the ESoSA,and the ESoSA contribution rate evaluation model based on the root node fuzzy importance is established.Finally,the feasibility and rationality of this method are validated via an empirical case study of aviation ESoSA.Compared with traditional methods,the evaluation method based on FBN takes various failure states of equipment into consideration,is free of acquiring accurate probability of traditional equipment failure,and models the uncertainty of the relationship between equipment.The proposed method not only supplements and improves the ESoSA contribution rate assessment method,but also broadens the application scope of the Bayesian network.
文摘A new method of effectiveness evaluation of weapon systems is set up by improving the formula of approaching degree. According to the grey target theory of grey system theory, the patterns of the weapon systems to be evaluated are formed with the main tactical and technical performance indices of these weapon systems, thereby the standard pattern of these patterns is determined. By solving the approaching degree of patterns to their standard one and making a comparison among them, the evaluation results can be obtained.
基金Project(51778626) supported by the National Natural Science Foundation of China
文摘The group-contribution (GC) methods suffer from a limitation concerning to the prediction of process-related indexes, e.g., thermal efficiency. Recently developed analytical models for thermal efficiency of organic Rankine cycles (ORCs) provide a possibility of overcoming the limitation of the GC methods because these models formulate thermal efficiency as functions of key thermal properties. Using these analytical relations together with GC methods, more than 60 organic fluids are screened for medium-low temperature ORCs. The results indicate that the GC methods can estimate thermal properties with acceptable accuracy (mean relative errors are 4.45%-11.50%);the precision, however, is low because the relative errors can vary from less than 0.1% to 45.0%. By contrast, the GC-based estimation of thermal efficiency has better accuracy and precision. The relative errors in thermal efficiency have an arithmetic mean of about 2.9% and fall within the range of 0-24.0%. These findings suggest that the analytical equations provide not only a direct way of estimating thermal efficiency but an accurate and precise approach to evaluating working fluids and guiding computer-aided molecular design of new fluids for ORCs using GC methods.
