To reveal the principles of human thermal responses and find out the effects of body parts on whole-body thermal sensation,through a subjective survey,experimental investigations on human responses are carried out whe...To reveal the principles of human thermal responses and find out the effects of body parts on whole-body thermal sensation,through a subjective survey,experimental investigations on human responses are carried out when a single body part is thermally stimulated.Cooling airflow is sent to seven body parts,respectively.Totally 94 samples are tested.To eliminate the obvious multicollinearity of thermal sensation among different body parts,the principal component regression approach is adopted to obtain the principal components for the body parts under different experimental conditions.Through regression and analysis of principal components,the weighting factors of the seven body parts are obtained.A predictive model on whole-body thermal sensation is obtained based on the weighting factors.The results show that the different characteristics of trunk and limbs are clearly seen.The weighting factors of local thermal sensation are integrated values,and there is little difference among values of different body parts.展开更多
To improve China's residential environment evaluation system and enhance its guiding role, current research results are analyzed and summarized from three aspects including research scales, evaluation methods and app...To improve China's residential environment evaluation system and enhance its guiding role, current research results are analyzed and summarized from three aspects including research scales, evaluation methods and applied technology by means of comparison, induction and empirical application. The guiding role of the current macro-scale evaluation system of urban planning and construction is generally not obvious, whereas the guiding role of medium and micro-scale systems to the improvement of residential environments is improving. There are diversified methods for determining the threshold values and the weights of indices in China's evaluation system. For instance, the analytic hierarchy process(AHP) method is adopted to determine the weights of indices. The advantages and disadvantages of the method are analyzed on the basis of empirical calculation. In the course of comprehensive analyses, a nonlinear model can reflect interactions among indices more than a linear model; the evaluation model under the ARCGIS platform prevails since it combines space and attribute, and it has intuitive results. So far, the methodological system of China's residential environment evaluation has not been established; its subject coverage and research category should be expanded, and its guiding role should be enhanced.展开更多
It is difficult to establish the integrated method to assess the ambient air quality because the atmospheric environmental system is composed of several environmental elements, which contains many contanination factor...It is difficult to establish the integrated method to assess the ambient air quality because the atmospheric environmental system is composed of several environmental elements, which contains many contanination factors. In view of the typical grey system character of the monitored data in the ambient air, this paper introduces the weighted value to obtain related degree during applying the method of grey related degree analvsis to assess ambient air quality by each polluting factor producing different effects on the environment quality. This method could give more reasonable and reliable evaluating results. Taking the monitored data of Harbin, a provincial city of Heilongjiang, for example in this paper, the result of assessment by this method was coincide,It with the actual environmental quality of Harbin.展开更多
Sustainable world heritage management represents an approach for managing the resources of a property by integrating environmental, economic, and social issues. It aims to provide sustainable benefits for future gener...Sustainable world heritage management represents an approach for managing the resources of a property by integrating environmental, economic, and social issues. It aims to provide sustainable benefits for future generations, while protect the property and minimize the possible adverse social, economic and environmental impacts. Indicators of sustainable development, which summarize information for decision-making, are invaluable to learn the efficiency and effectiveness of property management. Scientists in many fields devised several conceptual models of environmental statistics and indicators, of which, DPSIR (Driving forces – Pressure – State – Impact – Response) is thought to be the best available one in identifying and developing indicators of sustainable development. Based on the DPSIR conceptual model and indicator selection criteria, the present paper proposed a methodology framework for selecting indicators to assess the sustainable development of a natural heritage site. The proposed framework included a multi-level hierarchical structure for various indicators and indexes, a modified DPSIR frame to identify key issues in property management and a set of indicators for evaluating the sustainability in Sichuan Giant Panda Sanctuaries.展开更多
Great importance is attached to public participation in environmental protection activities. Public participation is the requirement for human race to protect themselves and to realize their environmental rights. The ...Great importance is attached to public participation in environmental protection activities. Public participation is the requirement for human race to protect themselves and to realize their environmental rights. The issue of respecting human rights is the substance. Public participation will produce tremendous deterrent power and impact to solve environmental problems, for it's strong, extensive and wise. World forms of public participation include political parties, non-government organizations, and environmental movements. History indicates that the initial power of protecting environmental was from the public. No public participation, no environmental movements. Therefore, our government and environmental protection departments should encourage good conditions for it. public participation and create展开更多
Reconstructing long-term vegetation buffers along streams in agricultural landscapes has become a common environmental restoration strategy for improving water quality and wildlife habitat connectivity.This article de...Reconstructing long-term vegetation buffers along streams in agricultural landscapes has become a common environmental restoration strategy for improving water quality and wildlife habitat connectivity.This article developed a linear weighted model to rank the priority of agricultural sub-basins for the establishment of vegetative buffers.The method was applied to an agricultural watershed of 146 km2 in Ontario,Canada.The watershed was divided into 11 sub-basins as basic decision units.In each subbasin,four stream buffer schemes with widths of 5,10,15 and 20m were generated.For each buffer,three benefit-cost attributes of reconstructing vegetation cover were estimated,which include acreage per dollar,sediment abatement per dollar and habitat benefit per dollar.These attributes were first normalized using a linear normalization approach to eliminate the effects across different units.The normalized attributes were then integrated using a simple additive weighting method to rank the 11 sub-basins for prioritizing spatial restoration action.A sensitivity analysis was also conducted to observe the impact of a change in attribute weights on the management decisions.The results suggest that vegetation buffers reconstructed for achieving the water quality goal are not effective in improving habitat connectivity and vice versa.展开更多
A weighted time-based global hierarchical path planning method is proposed to obtain the global optimal path from the starting point to the destination with time optimal control. First, the grid-or graph-based modelin...A weighted time-based global hierarchical path planning method is proposed to obtain the global optimal path from the starting point to the destination with time optimal control. First, the grid-or graph-based modeling is performed and the environment is divided into a set of grids or nodes. Then two time-based features of time interval and time cost are presented. The time intervals for each grid are built, during each interval the condition of the grid remains stable, and a time cost of passing through the grid is defined and assigned to each interval. Furthermore, the weight is introduced for taking both time and distance into consideration, and thus a sequence of multiscale paths with total time cost can be achieved. Experimental results show that the proposed method can handle the complex dynamic environment, obtain the global time optimal path and has the potential to be applied to the autonomous robot navigation and traffic environment.展开更多
Using copyright rules clear government of geological information property rights is the main path to realization of geological information socially sharing. For China's current laws have an institute basic principle ...Using copyright rules clear government of geological information property rights is the main path to realization of geological information socially sharing. For China's current laws have an institute basic principle of geological information protected by copyright law, we need to detailed thinking the copyright subject, write content, licensing and other aspects, combine the geological information sharing mechanism.展开更多
Based on the panel data of China's 34 industrial sectors during 2005-2013, this paper tests the water pollution effects of SOE ownership diversification in China. The result shows that in general, greater state ow...Based on the panel data of China's 34 industrial sectors during 2005-2013, this paper tests the water pollution effects of SOE ownership diversification in China. The result shows that in general, greater state ownership and less private ownership in a sector will lead to lower water pollution intensity. Test of threshold effect shows that, irrespective of its current level, an increase in state ownership helps improve the environment by different degrees. When pollution intensity is low, ownership diversification helps reduce pollution intensity; when pollution intensity is high, state ownership is the optimal choice for mitigating pollution. This paper's findings suggest that while advancing the mixedownership reform of SOEs, China cannot relax the environmental responsibilities of SOEs, and still less should economic interests override environmental concerns.展开更多
In this article, I examine the view that there is a human right to democracy, and consider why we should regard this issue as decisive in solving the problems of foreign interference in the protection of human rights....In this article, I examine the view that there is a human right to democracy, and consider why we should regard this issue as decisive in solving the problems of foreign interference in the protection of human rights. I also note that there has been almost no discussion about the holder of the human right to democracy, that is, who is to hold this right. After comparing John Rawls' argument against the human right to democracy and Thomas Christiano's argument for it and showing similarities and critical differences among their arguments, I insist that we ought to be sensitive when proclaiming that democracy--be it a minimally egalitarian democracy or a more exacting one--is a universal value. We have sufficient cause to consider carefully not only the political circumstances but also the political infrastructure of the country before we proceed to an even limited intervention in the name of the protection of a human right to democracy. If the human right to democracy is not just a right to vote, but a right to the whole process of establishment and enjoyment of democracy, it should be understood as a group right that pertains to a human population that legitimately claims political self-determination. Any human population that insists on the democratic self-determination of their political will is both able and entitled to establish and administer democratic institutions, regardless of the diversity of its ascribed or cultural characteristics. The establishment of such a group with a firm political identity should be considered as the political infrastructure to claim and exercise the human right to democracy.展开更多
To meet the authorization administration requirements in a distributedcomputer network environment, this paper extends the role-based access control model with multipleapplication dimensions and establishes a new acce...To meet the authorization administration requirements in a distributedcomputer network environment, this paper extends the role-based access control model with multipleapplication dimensions and establishes a new access control model ED-RBAC(Extended Role Based AccessControl Model) for the distributed environment. We propose an extendable hierarchical authorizationassignment framework and design effective role-registeringi role-applying and role-assigningprotocol with symmetric and asymmetric cryptographic systems. The model can be used to simplifyauthorization administration in a distributed environment with multiple applications.展开更多
Separation issue is one of the most important problems about cloud computing security. Tenants should be separated from each other based on cloud infrastructure and different users from one tenant should be separated ...Separation issue is one of the most important problems about cloud computing security. Tenants should be separated from each other based on cloud infrastructure and different users from one tenant should be separated from each other with the constraint of security policies. Learning from the notion of trusted cloud computing and trustworthiness in cloud, in this paper, a multi-level authorization separation model is formally described, and a series of rules are proposed to summarize the separation property of this model. The correctness of the rules is proved. Furthermore, based on this model, a tenant separation mechanism is deployed in a real world mixed-critical information system. Performance benchmarks have shown the availability and efficiency of this mechanism.展开更多
The male writers' intuitive gift and superb insight describe feminine characters, feminine nature, femaleness, and femininity. In the 19th century, the study of the character logical portrait and cultural traits asso...The male writers' intuitive gift and superb insight describe feminine characters, feminine nature, femaleness, and femininity. In the 19th century, the study of the character logical portrait and cultural traits associated with femininity enunciated feminists' discourse to justify vindication of rights as regards women's cultural anxiety, political identification, and aesthetic experimentation. Similarly, the women writers' imaginative powers characterize women's emotions either reflecting shrinking subjectivity or elaborating notion of voluntary subjectivity as regards their experiences and existence, their passions and sensations, and their self and life. The 20th century women's writings raised inquiry against presentation of gendered self, performance of gender, gender discontent as regards with their sex and gender, which are assigned at birth as well as also for the alignment of biological sex, sexuality, gender identity, and gender roles. In this paper, the study of the four selected novels such as The Scarlet Letter, Tess of the D 'Urbervilles, Emma, Surfacing, and Inner Line shows how circumstances, strata of time, and externalities of others objectify woman and her domestic space; how a woman perceives her deprivation as regards her own image which seems nobody to herself due to the sense of low perception; in what way sexual difference and gender-specific practices and ideology enforce woman to chide herself in the given environment and surroundings of legal codifications, moral prescriptions, and medical prognostications. The analyses of the novels draw how woman's experience as living subject in the vital dimension of human existence and utopian image of human fellowship is potentially undone by way of sexual exploitation, dismemberment, and embodiment. What kind of vulnerable moments force woman to withdraw from her body and fi'om her essence is the center of concern in this paper? While discussing the feminists' culture and ethics in their works, the focus is on the essentialized notion of gender-specific discrimination as well as on the frustrating double-consciousness that characterizes the cultural position of the other.展开更多
Clean Development Mechanism (CDM) has given birth to an international carbon trading market prosperity, which provides developing countries with valuable opportunity to address climate change issues right along with e...Clean Development Mechanism (CDM) has given birth to an international carbon trading market prosperity, which provides developing countries with valuable opportunity to address climate change issues right along with economic development and environmental improvement to achieve sustainable development. However, most studies of CDM focus on economics, and few on its legal problems. CDM involves too many aspects. And the clear legal attribute of trading object is the basis of progress of the transaction and also the start point of legal protection. Therefore, this paper in accordance with the inherent principle of property rights economics, and environmental economics in CDM, only discusses CDM carbon emission right legal interpretation and its attribution. The paper recommends that in order to ensure and promote the carbon emission right trading, carbon emission right should be attributed into the system of real rights to be regulated by Real Right Law. In this way, carbon emission right can gain exclusive power of possession and use, which can achieve a clear right def inition of environmental goods in line with Coase's theory to protect Chinese prof it in carbon trading market and promote the development of the carbon trading market further.展开更多
Energy saving,emission reduction and economic development are major issues China has to meet in building a harmonious society.On one hand,China should pursue a sustainable,fast and sound economic development,on the ot...Energy saving,emission reduction and economic development are major issues China has to meet in building a harmonious society.On one hand,China should pursue a sustainable,fast and sound economic development,on the other hand,she should try to decrease the overuse of energy resources and the environ- mental problems caused by the rapid economic growth. In this regard,on June 24,the Standing Committee of National People's Congress deliberated the draft of Energy Saving Law,according to which China is to take"resources saving"as a basic national policy.This is a key issue to the long-term benefits of China.With relevant questions,China's Foreign Trade interviewed Dr, Yonglong L(?),Secretary-general,Chinese Committee for SCOPE(Scientific Committee on Problems of the Environment/ICSU).and Research Professor at the Chinese Academy of Sciences. Let's listen to Dr.L(?)'s comments with wisdom.展开更多
The assessment of economic potential of technological innovation projects and its valuation are key aspects in negotiations among universities, research institutes, and companies. Among the reasons for this, it can be...The assessment of economic potential of technological innovation projects and its valuation are key aspects in negotiations among universities, research institutes, and companies. Among the reasons for this, it can be quoted portfolio prioritization, which involves several different economic, social, and environmental impacts aspects and industrial productivity. The standard of economic potential is an important reference in the project selection process. For technology transfer, the valuation of technologies consists in a relevant task to support intellectual property (IP) negotiations. However, in dynamic environments, negotiations for the commercial exploitation and payment of IP resulting from research projects require quick answers, due to several aspects like tight deadlines to sign contracts. Moreover, technology valuation is one of the most complex activities related to the technology transfer. Due to these challenges faced by Instituto de Pesquisas Tecnol6gicas do Estado de S~,o Paulo (IPT--Institute For Technological Research) in its participation in Brazilian Association of Industrial Innovation (EMBRAPII, acronym in Brazilian Portuguese), authors developed an expedite technology valuation method, based on concepts of discounted cash flow (DCF) associated with Gompertz curve adaptations as a way to support universities and research institutes in negotiations with enterprises. This method has been regularly applied on negotiations between 1PT and companies. This paper will present cases of metallurgical companies. The results obtained confirm the validity of the method in supporting the definition of the payable amounts for commercial exploitation of technologies, enabling the application of this method as an alternative to some methods found in the literature and eventually employed by universities and research institutes in Brazil. For future research, authors recommend comparative studies between Gompertz curve and other methods, such as the Pearl curve, using the same variables of our method.展开更多
As technology becomes increasingly integrated into the teaching and learning processes at the university level, it is imperative that research be conducted in relation to the impact of technology acquisition on minori...As technology becomes increasingly integrated into the teaching and learning processes at the university level, it is imperative that research be conducted in relation to the impact of technology acquisition on minority learning populations. Research suggests that we need to improve the ways technology is applied, adopted and introduced and that higher levels of support should be provided to minority and nontraditional learning populations as they immerse themselves into higher education environments. Avenues for discussion of cost-effective technology integration and transition are explored; data identifies a need for more effective selection and alignment of learning needs with learning tools earlier on in the process of technology implementation across campuses. Research suggests this supports student presence, persistence, retention and success. Without it, however, we fail to support the very learners we seek to provide higher levels of access and opportunity. This failure will impact learners and institutions alike by placing disadvantage populations in precarious positions and universities having to choose between cultural, economic and human capital. The paper is organized as follows: Section 1: Introduction; Section 2: Need for Understanding Minority Enrollment Patterns; Section 3: Analysis of Report Data; Section 4: Strategy; Section 5: Conclusions.展开更多
Let W be the limit of the normalized population size of a supercritical branching process in a varying or random environment. By an elementary method, we find sufficient conditions under which W has finite weighted mo...Let W be the limit of the normalized population size of a supercritical branching process in a varying or random environment. By an elementary method, we find sufficient conditions under which W has finite weighted moments of the form EWpl(W), where p > 1, l 0 is a concave or slowly varying function.展开更多
基金The National Natural Science Foundation of China(No.50678030)
文摘To reveal the principles of human thermal responses and find out the effects of body parts on whole-body thermal sensation,through a subjective survey,experimental investigations on human responses are carried out when a single body part is thermally stimulated.Cooling airflow is sent to seven body parts,respectively.Totally 94 samples are tested.To eliminate the obvious multicollinearity of thermal sensation among different body parts,the principal component regression approach is adopted to obtain the principal components for the body parts under different experimental conditions.Through regression and analysis of principal components,the weighting factors of the seven body parts are obtained.A predictive model on whole-body thermal sensation is obtained based on the weighting factors.The results show that the different characteristics of trunk and limbs are clearly seen.The weighting factors of local thermal sensation are integrated values,and there is little difference among values of different body parts.
基金The National Key Technology R&D Program during the 11th Five-Year Plan(No.2006BAJ11B04-2)the Soft Science Project of the Ministry of Construction of China(No.2008-R2-25)
文摘To improve China's residential environment evaluation system and enhance its guiding role, current research results are analyzed and summarized from three aspects including research scales, evaluation methods and applied technology by means of comparison, induction and empirical application. The guiding role of the current macro-scale evaluation system of urban planning and construction is generally not obvious, whereas the guiding role of medium and micro-scale systems to the improvement of residential environments is improving. There are diversified methods for determining the threshold values and the weights of indices in China's evaluation system. For instance, the analytic hierarchy process(AHP) method is adopted to determine the weights of indices. The advantages and disadvantages of the method are analyzed on the basis of empirical calculation. In the course of comprehensive analyses, a nonlinear model can reflect interactions among indices more than a linear model; the evaluation model under the ARCGIS platform prevails since it combines space and attribute, and it has intuitive results. So far, the methodological system of China's residential environment evaluation has not been established; its subject coverage and research category should be expanded, and its guiding role should be enhanced.
文摘It is difficult to establish the integrated method to assess the ambient air quality because the atmospheric environmental system is composed of several environmental elements, which contains many contanination factors. In view of the typical grey system character of the monitored data in the ambient air, this paper introduces the weighted value to obtain related degree during applying the method of grey related degree analvsis to assess ambient air quality by each polluting factor producing different effects on the environment quality. This method could give more reasonable and reliable evaluating results. Taking the monitored data of Harbin, a provincial city of Heilongjiang, for example in this paper, the result of assessment by this method was coincide,It with the actual environmental quality of Harbin.
文摘Sustainable world heritage management represents an approach for managing the resources of a property by integrating environmental, economic, and social issues. It aims to provide sustainable benefits for future generations, while protect the property and minimize the possible adverse social, economic and environmental impacts. Indicators of sustainable development, which summarize information for decision-making, are invaluable to learn the efficiency and effectiveness of property management. Scientists in many fields devised several conceptual models of environmental statistics and indicators, of which, DPSIR (Driving forces – Pressure – State – Impact – Response) is thought to be the best available one in identifying and developing indicators of sustainable development. Based on the DPSIR conceptual model and indicator selection criteria, the present paper proposed a methodology framework for selecting indicators to assess the sustainable development of a natural heritage site. The proposed framework included a multi-level hierarchical structure for various indicators and indexes, a modified DPSIR frame to identify key issues in property management and a set of indicators for evaluating the sustainability in Sichuan Giant Panda Sanctuaries.
文摘Great importance is attached to public participation in environmental protection activities. Public participation is the requirement for human race to protect themselves and to realize their environmental rights. The issue of respecting human rights is the substance. Public participation will produce tremendous deterrent power and impact to solve environmental problems, for it's strong, extensive and wise. World forms of public participation include political parties, non-government organizations, and environmental movements. History indicates that the initial power of protecting environmental was from the public. No public participation, no environmental movements. Therefore, our government and environmental protection departments should encourage good conditions for it. public participation and create
基金supported by "SUST Spring Bud" Project (Grant no.2008AZZ110)National Key Technology R&D Program of China project (Grant no.2006BAJ15B02)
文摘Reconstructing long-term vegetation buffers along streams in agricultural landscapes has become a common environmental restoration strategy for improving water quality and wildlife habitat connectivity.This article developed a linear weighted model to rank the priority of agricultural sub-basins for the establishment of vegetative buffers.The method was applied to an agricultural watershed of 146 km2 in Ontario,Canada.The watershed was divided into 11 sub-basins as basic decision units.In each subbasin,four stream buffer schemes with widths of 5,10,15 and 20m were generated.For each buffer,three benefit-cost attributes of reconstructing vegetation cover were estimated,which include acreage per dollar,sediment abatement per dollar and habitat benefit per dollar.These attributes were first normalized using a linear normalization approach to eliminate the effects across different units.The normalized attributes were then integrated using a simple additive weighting method to rank the 11 sub-basins for prioritizing spatial restoration action.A sensitivity analysis was also conducted to observe the impact of a change in attribute weights on the management decisions.The results suggest that vegetation buffers reconstructed for achieving the water quality goal are not effective in improving habitat connectivity and vice versa.
基金Supported by the National Natural Science Foundation of China(No.61100143,No.61370128)the Program for New Century Excellent Talents in University of the Ministry of Education of China(NCET-13-0659)Beijing Higher Education Young Elite Teacher Project(YETP0583)
文摘A weighted time-based global hierarchical path planning method is proposed to obtain the global optimal path from the starting point to the destination with time optimal control. First, the grid-or graph-based modeling is performed and the environment is divided into a set of grids or nodes. Then two time-based features of time interval and time cost are presented. The time intervals for each grid are built, during each interval the condition of the grid remains stable, and a time cost of passing through the grid is defined and assigned to each interval. Furthermore, the weight is introduced for taking both time and distance into consideration, and thus a sequence of multiscale paths with total time cost can be achieved. Experimental results show that the proposed method can handle the complex dynamic environment, obtain the global time optimal path and has the potential to be applied to the autonomous robot navigation and traffic environment.
文摘Using copyright rules clear government of geological information property rights is the main path to realization of geological information socially sharing. For China's current laws have an institute basic principle of geological information protected by copyright law, we need to detailed thinking the copyright subject, write content, licensing and other aspects, combine the geological information sharing mechanism.
基金supported by the“Growth Dividend Effect and Growth Pressure Effect on Environmental Performance in the New Normal”of the National Social Science Fund(15CJL012)Beijing Social Science Fund Program“Effects of Economic Growth in Beijing-Tianjin-Hebei on Environmental Pollution in the New Normal and Simulated Scenario”(15JDJGC096)
文摘Based on the panel data of China's 34 industrial sectors during 2005-2013, this paper tests the water pollution effects of SOE ownership diversification in China. The result shows that in general, greater state ownership and less private ownership in a sector will lead to lower water pollution intensity. Test of threshold effect shows that, irrespective of its current level, an increase in state ownership helps improve the environment by different degrees. When pollution intensity is low, ownership diversification helps reduce pollution intensity; when pollution intensity is high, state ownership is the optimal choice for mitigating pollution. This paper's findings suggest that while advancing the mixedownership reform of SOEs, China cannot relax the environmental responsibilities of SOEs, and still less should economic interests override environmental concerns.
文摘In this article, I examine the view that there is a human right to democracy, and consider why we should regard this issue as decisive in solving the problems of foreign interference in the protection of human rights. I also note that there has been almost no discussion about the holder of the human right to democracy, that is, who is to hold this right. After comparing John Rawls' argument against the human right to democracy and Thomas Christiano's argument for it and showing similarities and critical differences among their arguments, I insist that we ought to be sensitive when proclaiming that democracy--be it a minimally egalitarian democracy or a more exacting one--is a universal value. We have sufficient cause to consider carefully not only the political circumstances but also the political infrastructure of the country before we proceed to an even limited intervention in the name of the protection of a human right to democracy. If the human right to democracy is not just a right to vote, but a right to the whole process of establishment and enjoyment of democracy, it should be understood as a group right that pertains to a human population that legitimately claims political self-determination. Any human population that insists on the democratic self-determination of their political will is both able and entitled to establish and administer democratic institutions, regardless of the diversity of its ascribed or cultural characteristics. The establishment of such a group with a firm political identity should be considered as the political infrastructure to claim and exercise the human right to democracy.
文摘To meet the authorization administration requirements in a distributedcomputer network environment, this paper extends the role-based access control model with multipleapplication dimensions and establishes a new access control model ED-RBAC(Extended Role Based AccessControl Model) for the distributed environment. We propose an extendable hierarchical authorizationassignment framework and design effective role-registeringi role-applying and role-assigningprotocol with symmetric and asymmetric cryptographic systems. The model can be used to simplifyauthorization administration in a distributed environment with multiple applications.
基金supported by the Fundamental Research funds for the central Universities of China (No. K15JB00190)the Ph.D. Programs Foundation of Ministry of Education of China (No. 20120009120010)the Program for Innovative Research Team in University of Ministry of Education of China (IRT201206)
文摘Separation issue is one of the most important problems about cloud computing security. Tenants should be separated from each other based on cloud infrastructure and different users from one tenant should be separated from each other with the constraint of security policies. Learning from the notion of trusted cloud computing and trustworthiness in cloud, in this paper, a multi-level authorization separation model is formally described, and a series of rules are proposed to summarize the separation property of this model. The correctness of the rules is proved. Furthermore, based on this model, a tenant separation mechanism is deployed in a real world mixed-critical information system. Performance benchmarks have shown the availability and efficiency of this mechanism.
文摘The male writers' intuitive gift and superb insight describe feminine characters, feminine nature, femaleness, and femininity. In the 19th century, the study of the character logical portrait and cultural traits associated with femininity enunciated feminists' discourse to justify vindication of rights as regards women's cultural anxiety, political identification, and aesthetic experimentation. Similarly, the women writers' imaginative powers characterize women's emotions either reflecting shrinking subjectivity or elaborating notion of voluntary subjectivity as regards their experiences and existence, their passions and sensations, and their self and life. The 20th century women's writings raised inquiry against presentation of gendered self, performance of gender, gender discontent as regards with their sex and gender, which are assigned at birth as well as also for the alignment of biological sex, sexuality, gender identity, and gender roles. In this paper, the study of the four selected novels such as The Scarlet Letter, Tess of the D 'Urbervilles, Emma, Surfacing, and Inner Line shows how circumstances, strata of time, and externalities of others objectify woman and her domestic space; how a woman perceives her deprivation as regards her own image which seems nobody to herself due to the sense of low perception; in what way sexual difference and gender-specific practices and ideology enforce woman to chide herself in the given environment and surroundings of legal codifications, moral prescriptions, and medical prognostications. The analyses of the novels draw how woman's experience as living subject in the vital dimension of human existence and utopian image of human fellowship is potentially undone by way of sexual exploitation, dismemberment, and embodiment. What kind of vulnerable moments force woman to withdraw from her body and fi'om her essence is the center of concern in this paper? While discussing the feminists' culture and ethics in their works, the focus is on the essentialized notion of gender-specific discrimination as well as on the frustrating double-consciousness that characterizes the cultural position of the other.
基金supported by National Key Project of Scientific and Technical Supporting Programs Funded by Ministry of Science and Tech-nology of China in the 11th Five-Year Plan (Grant No. 2007BAC03A12).
文摘Clean Development Mechanism (CDM) has given birth to an international carbon trading market prosperity, which provides developing countries with valuable opportunity to address climate change issues right along with economic development and environmental improvement to achieve sustainable development. However, most studies of CDM focus on economics, and few on its legal problems. CDM involves too many aspects. And the clear legal attribute of trading object is the basis of progress of the transaction and also the start point of legal protection. Therefore, this paper in accordance with the inherent principle of property rights economics, and environmental economics in CDM, only discusses CDM carbon emission right legal interpretation and its attribution. The paper recommends that in order to ensure and promote the carbon emission right trading, carbon emission right should be attributed into the system of real rights to be regulated by Real Right Law. In this way, carbon emission right can gain exclusive power of possession and use, which can achieve a clear right def inition of environmental goods in line with Coase's theory to protect Chinese prof it in carbon trading market and promote the development of the carbon trading market further.
文摘Energy saving,emission reduction and economic development are major issues China has to meet in building a harmonious society.On one hand,China should pursue a sustainable,fast and sound economic development,on the other hand,she should try to decrease the overuse of energy resources and the environ- mental problems caused by the rapid economic growth. In this regard,on June 24,the Standing Committee of National People's Congress deliberated the draft of Energy Saving Law,according to which China is to take"resources saving"as a basic national policy.This is a key issue to the long-term benefits of China.With relevant questions,China's Foreign Trade interviewed Dr, Yonglong L(?),Secretary-general,Chinese Committee for SCOPE(Scientific Committee on Problems of the Environment/ICSU).and Research Professor at the Chinese Academy of Sciences. Let's listen to Dr.L(?)'s comments with wisdom.
文摘The assessment of economic potential of technological innovation projects and its valuation are key aspects in negotiations among universities, research institutes, and companies. Among the reasons for this, it can be quoted portfolio prioritization, which involves several different economic, social, and environmental impacts aspects and industrial productivity. The standard of economic potential is an important reference in the project selection process. For technology transfer, the valuation of technologies consists in a relevant task to support intellectual property (IP) negotiations. However, in dynamic environments, negotiations for the commercial exploitation and payment of IP resulting from research projects require quick answers, due to several aspects like tight deadlines to sign contracts. Moreover, technology valuation is one of the most complex activities related to the technology transfer. Due to these challenges faced by Instituto de Pesquisas Tecnol6gicas do Estado de S~,o Paulo (IPT--Institute For Technological Research) in its participation in Brazilian Association of Industrial Innovation (EMBRAPII, acronym in Brazilian Portuguese), authors developed an expedite technology valuation method, based on concepts of discounted cash flow (DCF) associated with Gompertz curve adaptations as a way to support universities and research institutes in negotiations with enterprises. This method has been regularly applied on negotiations between 1PT and companies. This paper will present cases of metallurgical companies. The results obtained confirm the validity of the method in supporting the definition of the payable amounts for commercial exploitation of technologies, enabling the application of this method as an alternative to some methods found in the literature and eventually employed by universities and research institutes in Brazil. For future research, authors recommend comparative studies between Gompertz curve and other methods, such as the Pearl curve, using the same variables of our method.
文摘As technology becomes increasingly integrated into the teaching and learning processes at the university level, it is imperative that research be conducted in relation to the impact of technology acquisition on minority learning populations. Research suggests that we need to improve the ways technology is applied, adopted and introduced and that higher levels of support should be provided to minority and nontraditional learning populations as they immerse themselves into higher education environments. Avenues for discussion of cost-effective technology integration and transition are explored; data identifies a need for more effective selection and alignment of learning needs with learning tools earlier on in the process of technology implementation across campuses. Research suggests this supports student presence, persistence, retention and success. Without it, however, we fail to support the very learners we seek to provide higher levels of access and opportunity. This failure will impact learners and institutions alike by placing disadvantage populations in precarious positions and universities having to choose between cultural, economic and human capital. The paper is organized as follows: Section 1: Introduction; Section 2: Need for Understanding Minority Enrollment Patterns; Section 3: Analysis of Report Data; Section 4: Strategy; Section 5: Conclusions.
基金supported by National Natural Science Foundation of China (Grant No. 10771021)Research Fund for the Doctoral Program of Higher Education of China (Grant No. 20104306110001)+1 种基金the Planned Science and Technology Project of Hunan Province (Grant Nos. 2010fj6036, 2009fi3098)the Scientific Research Fund of Hunan Provincial Education Department (Grant Nos. 08C120, 09C113, 09C059)
文摘Let W be the limit of the normalized population size of a supercritical branching process in a varying or random environment. By an elementary method, we find sufficient conditions under which W has finite weighted moments of the form EWpl(W), where p > 1, l 0 is a concave or slowly varying function.