To cope with the impact of big data,it is proposed to integrate the traditionally individual computing,communications and storage systems,which are getting inevitably converged.An effective information system capacity...To cope with the impact of big data,it is proposed to integrate the traditionally individual computing,communications and storage systems,which are getting inevitably converged.An effective information system capacity is introduced and discussed,aimed at excavating potentials of information system under a new paradigm with more degrees of freedom.展开更多
The author＇s research topics include economic and legal questions concerning prostitution and drug use. There are two extreme models in these two areas, one represented by Sweden and the other by the Netherlands. Swe...The author＇s research topics include economic and legal questions concerning prostitution and drug use. There are two extreme models in these two areas, one represented by Sweden and the other by the Netherlands. Sweden votes for the model of a ＂prostitution and drug free society＂, while the latter represents a looser, more liberal view. This presentation aims to answer the question whether the statistics support the presumptions of either model. To shed light on these issues, facts and figures published by the Swedish and Dutch statistics offices as well as other studies on the subject were analyzed. During the course of the past few decades. the income from the prostitution and drug markets in Sweden was virtually unchanged. This may be considered as a failure： prostitution and drug use could not be decreased further. It may also be considered as an achievement： while these two markets were growing in many countries, at least in the case of Sweden the situation did not become worse. It seems that the liberal regulation of drugs and prostitution in the Netherlands has not been a successful venture. It is no wonder that there are plans for changes and limitations to the prostitution sector with new regulations, although complete prohibition has not been raised as an issue. The consumption of drugs has been increasing. In this respect, alongside the liberal stance on the issue, increasing emphasis is placed on deterrence from light drugs.展开更多
This study models supply response for major agricultural crops in Nigeria which include the standard arguments and price risk. The data comes from Central Bank of Nigeria annual reports and statement of account, Natio...This study models supply response for major agricultural crops in Nigeria which include the standard arguments and price risk. The data comes from Central Bank of Nigeria annual reports and statement of account, National Bureau of Statistics＇ abstract of statistics and annual Agricultural survey manual. The data are analyzed using autoregressive distributed lag and cointegration and error correction models. The results indicate that producers are responsive not only to price but also to price risk and exchange rate.展开更多
Darcy's law only applying to the flow domain is extended to the entire fracture network domain including the dry domain.The partial differential equation(PDE) formulation for unconfined seepage flow problems for d...Darcy's law only applying to the flow domain is extended to the entire fracture network domain including the dry domain.The partial differential equation(PDE) formulation for unconfined seepage flow problems for discrete fracture network is established,in which a boundary condition of Signorini's type is prescribed over the potential seepage surfaces.In order to reduce the difficulty in selecting trial functions,a new variational inequality formulation is presented and mathematically proved to be equivalent to the PDE formulation.The numerical procedure based on the VI formulation is proposed and the corresponding algorithm has been developed.Since a continuous penalized Heaviside function is introduced to replace a jump function in finite element analysis,oscillation of numerical integration for facture elements cut by the free surface is eliminated and stability of numerical solution is assured.The numerical results from two typical examples demonstrate,on the one hand the effectiveness and robustness of the proposed method,and on the other hand the capability of predicting main seepage pathways in fractured rocks and flow rates out of the drainage system,which is very important for performance assessments and design optimization of complex drainage system.展开更多
The fundamental law for protein folding is the thermodynamic principle.The amino acid sequence of a protein determines its native structure and the native structure has the minimum Gibbs free energy.Lacking of a Gibbs...The fundamental law for protein folding is the thermodynamic principle.The amino acid sequence of a protein determines its native structure and the native structure has the minimum Gibbs free energy.Lacking of a Gibbs free energy formula is the reason that all ab initio protein structure prediction only empirical and various empirical energy surfaces or landscapes are introduced to fill the gap.We make a quantum mechanics derivation of the Gibbs free energy formula G(X)using quantum statistics for a single conformation X.For simplicity,only monomeric self folding globular proteins are considered.展开更多
基金supported by the Huawei HIRP Flagship Project(5G Networks&Big Data)the National Natural Science Foundation of China(No.61325005)the European Union EU FP7 QUICK project(No.PIRSES-GA-2013-612652)
文摘To cope with the impact of big data,it is proposed to integrate the traditionally individual computing,communications and storage systems,which are getting inevitably converged.An effective information system capacity is introduced and discussed,aimed at excavating potentials of information system under a new paradigm with more degrees of freedom.
文摘The author＇s research topics include economic and legal questions concerning prostitution and drug use. There are two extreme models in these two areas, one represented by Sweden and the other by the Netherlands. Sweden votes for the model of a ＂prostitution and drug free society＂, while the latter represents a looser, more liberal view. This presentation aims to answer the question whether the statistics support the presumptions of either model. To shed light on these issues, facts and figures published by the Swedish and Dutch statistics offices as well as other studies on the subject were analyzed. During the course of the past few decades. the income from the prostitution and drug markets in Sweden was virtually unchanged. This may be considered as a failure： prostitution and drug use could not be decreased further. It may also be considered as an achievement： while these two markets were growing in many countries, at least in the case of Sweden the situation did not become worse. It seems that the liberal regulation of drugs and prostitution in the Netherlands has not been a successful venture. It is no wonder that there are plans for changes and limitations to the prostitution sector with new regulations, although complete prohibition has not been raised as an issue. The consumption of drugs has been increasing. In this respect, alongside the liberal stance on the issue, increasing emphasis is placed on deterrence from light drugs.
文摘This study models supply response for major agricultural crops in Nigeria which include the standard arguments and price risk. The data comes from Central Bank of Nigeria annual reports and statement of account, National Bureau of Statistics＇ abstract of statistics and annual Agricultural survey manual. The data are analyzed using autoregressive distributed lag and cointegration and error correction models. The results indicate that producers are responsive not only to price but also to price risk and exchange rate.
基金supported by the National Natural Science Foundation of China (Grant No. 51079110)the National Basic Research Program of China ("973" Project) (Grant No. 2011CB013506)
文摘Darcy's law only applying to the flow domain is extended to the entire fracture network domain including the dry domain.The partial differential equation(PDE) formulation for unconfined seepage flow problems for discrete fracture network is established,in which a boundary condition of Signorini's type is prescribed over the potential seepage surfaces.In order to reduce the difficulty in selecting trial functions,a new variational inequality formulation is presented and mathematically proved to be equivalent to the PDE formulation.The numerical procedure based on the VI formulation is proposed and the corresponding algorithm has been developed.Since a continuous penalized Heaviside function is introduced to replace a jump function in finite element analysis,oscillation of numerical integration for facture elements cut by the free surface is eliminated and stability of numerical solution is assured.The numerical results from two typical examples demonstrate,on the one hand the effectiveness and robustness of the proposed method,and on the other hand the capability of predicting main seepage pathways in fractured rocks and flow rates out of the drainage system,which is very important for performance assessments and design optimization of complex drainage system.
文摘The fundamental law for protein folding is the thermodynamic principle.The amino acid sequence of a protein determines its native structure and the native structure has the minimum Gibbs free energy.Lacking of a Gibbs free energy formula is the reason that all ab initio protein structure prediction only empirical and various empirical energy surfaces or landscapes are introduced to fill the gap.We make a quantum mechanics derivation of the Gibbs free energy formula G(X)using quantum statistics for a single conformation X.For simplicity,only monomeric self folding globular proteins are considered.
