China-Japan Relationship is a very special bilateral tie in international relations since it＇s a matter of regional peace and stability. The Abe administration has long pursued a ＂bet-hedging＂ strategy towards Chin...China-Japan Relationship is a very special bilateral tie in international relations since it＇s a matter of regional peace and stability. The Abe administration has long pursued a ＂bet-hedging＂ strategy towards China. Although it claims that it attaches great importance to the ties between Japan and China, it pursues ＂Strategic Diplomacy＂ and ＂Value-oriented Diplomacy＂ to hype up the so-called ＂China Threat＂ in international community. It not only makes China-Japan relations to continuously fall into a vicious circle of＂repeated deterioration＂, but also become an uncertainty for peace and stability in East Asia and the regional security. In addition, it reflects the ＂diplomacy dilemma＂ of the Abe administration＇s China policy.展开更多
The isothermal compression tests were carried out in the Thermecmastor-Z thermo-simulator at temperatures of 800, 850, 900, 950, 1000 and 1050 ℃ and the strain rates of 0.01, 0.1, 1 and 10 s-1. The influence of defor...The isothermal compression tests were carried out in the Thermecmastor-Z thermo-simulator at temperatures of 800, 850, 900, 950, 1000 and 1050 ℃ and the strain rates of 0.01, 0.1, 1 and 10 s-1. The influence of deformation temperature and strain rate on the flow stress of Ti-6Al-2Zr-IMo-IV alloy was studied. Based on the experimental data sets, the high temperature deformation behavior of Ti-6A1-2Zr-IMo-IV alloy was presented using the intelligent method of artificial neural network （ANN）. The results indicate that the predicted flow stress values by ANN model is quite consistent with the experimental results, which implies that the artificial neural network is an effective tool for studying the hot deformation behavior of the present alloy. In addition, the development of graphical user interface is implemented using Visual Basic programming language.展开更多
The 1780-1760 Ma Taihang dyke swarm and the coeval Xiong’er volcanic province are the most widespread magmatic events occurring post the amalgamation of the two North China cratons.It has been debated whether
The aim of this study is to examine the buyer-seller re-lationship in Hong Kong’s clothing industry.The initialpart investigated the industry’s environment.Four hy-pothesis were developed which were based on the lon...The aim of this study is to examine the buyer-seller re-lationship in Hong Kong’s clothing industry.The initialpart investigated the industry’s environment.Four hy-pothesis were developed which were based on the long-term buyer-seller relationships’features.The benefitsthat can enjoy within the stage of long-term buyer-seller relationships was the defined and suggested.展开更多
A set of novel structural descriptors (molecular hybridization electronegativity-distance vector, VMEDh) was put forward, and the quantitative structure–activity relationship (QSAR) of a series of 17α-Acetoxyprogest...A set of novel structural descriptors (molecular hybridization electronegativity-distance vector, VMEDh) was put forward, and the quantitative structure–activity relationship (QSAR) of a series of 17α-Acetoxyprogesterones (APs) was investigated. Taking into account the effect of various hybridized orbits on atomic electronegativities, we developed the structure descriptors with amended electronegativities to build a QSAR model. The 10-parameter model based on VMEDh yields a correlation coefficient R=0.972 and standard deviation SD=0.262, which are more desirable than those of the previous molecular electonegativity-distance vector (MEDV-4) (R=0.969, SD=0.275). By stepwise multiple linear regression, several parameters are selected to construct optimal models. The 7-parameter model based on VMEDh has R=0.960 and SD=0.276; its correlation coefficient (RCV) and standard deviation (SDCV) for leave-one-out procedure crossvalidation are respectively RCV=0.890 and SDCV=0.445. The 6-parameter MEDV-4 model has R=0.946, SD=0.304, RCV=0.903 and SDCV=0.406. It is demonstrated that VMEDh has desirable estimation performance and good predictive capability for this series of chemical compounds.展开更多
The relationship between Egypt and Palestine can be traced back to theChalcolithic Age thanks to the evidence of current excavations in the Nile Deltaand Sinal.Palestinian pottery and cast metal objects from the Delta...The relationship between Egypt and Palestine can be traced back to theChalcolithic Age thanks to the evidence of current excavations in the Nile Deltaand Sinal.Palestinian pottery and cast metal objects from the Delta sites of Maadi,Minshat Abu Omar,and elsewhere have proved contacts with Palestine inProtodynastic(Nagada Ⅱ-Ⅲ)times.The Egyptian Protodynastic Period andDynasty 1 were contemporary with the Palestinian EB Ⅰ and EB Ⅲ,and展开更多
Piezoelectric composite material (PCM) is an important branch of modernsensor and actuator materials with wide applications in smart structures. In this paper, based onpiezoelectric ceramic, composite and experimental...Piezoelectric composite material (PCM) is an important branch of modernsensor and actuator materials with wide applications in smart structures. In this paper, based onpiezoelectric ceramic, composite and experimental mechanics theories, a kind of 1-3 orthogonalanisotropic PCM (OAPCM) sensor is developed, and the sensing principle is analyzed to describesensor behaviors. In order to determine strain and stress on isotropic or orthogonal anisotropiccomponent surface, the relationships between strain and stress are established. The experimentalresearch on 1-3 OAPCM sensor is carried out in uniaxial and biaxial stress states. The results showthat 1-3 OAPCM sensors offer orthotropic properties of piezoelectricity, and sensing equations canbe used for strain or stress measurement with good accuracy.展开更多
The genus Armeniaca Scop. is well known for its popular cultivated edible fruit trees such as Armeniaca vul- garis Lam. and ornamental flowers such as A. mume Sieb. Another species, A. cathayana Fu et al., one of six ...The genus Armeniaca Scop. is well known for its popular cultivated edible fruit trees such as Armeniaca vul- garis Lam. and ornamental flowers such as A. mume Sieb. Another species, A. cathayana Fu et al., one of six important dry fruits （kernel-using apricot）, is cultivated for its edible seeds in North China. In the present study, DNA from 70 individuals of A rmeniaca, including 38 of A. cathayana, 18 ofA. vulgaris, 12 ofA. sibirica, 1 ofA. dasycarpa and 1 of A. mume, was extracted and analyzed using microsatellites and capillary electrophoresis. For 20 polymorphic loci selected, 339 alleles and 140.7 effective alleles were detected. The number of alleles per locus ranged from 8 to 28, with an average of 16.95 alleles per locus. The observed heterozygosity （Ho） and the expected heterozygosity （He） ranged from 0.427 to 0.971 and from 0.737 to 0.912, respectively. The polymorphism information content varied from 0.708 to0.905, with an average of 0.827. Based on the genetic similarity among 70 individuals, a UPGMA was used to establish the phylogenetic relationships. The taxonomic positions among five species were clearly revealed, and A. cathayana was more closely related to A. vulgaris than to A. sibirica. The results will provide a scientific basis for research on the taxonomy, germplasm resources and breeding ofArmeniaca, especially for A. cathayana.展开更多
The true stress-sWain relationships of Ti-5A1-2Sn-2Zr-4Mo-4Cr（TC17） alloy with a wide range of strain rates were investigated by tmiaxial quasi-static and dynamic compression tests, respectively. Quasi- static compr...The true stress-sWain relationships of Ti-5A1-2Sn-2Zr-4Mo-4Cr（TC17） alloy with a wide range of strain rates were investigated by tmiaxial quasi-static and dynamic compression tests, respectively. Quasi- static compression tests were carried out with Instron 8874 test machine, while dynamic compression tests were performed with the split Hopkinson pressure bar （SHPB） which was installed with heating device and synchro- assembly system. The dynamic mechanical behaviors tests of TC17 were carded out from room temperature to 800 ℃ at intervals of 200 ℃ and at high sWain rates （5 500-1 9200 s-l）. The stress-strain curves considering temperature-sWain rate coupling actions were obtained. The Johnson-Cook constitutive model was developed through data fitting of the stress-sWain curves. The material constants in the developed constitutive model can be determined using isothermal and adiabatic stress-strain curves at different strain rates. The Johnson-Cook constitutive model provided satisfied prediction of the plastic flow stress for TC17 alloy.展开更多
文摘China-Japan Relationship is a very special bilateral tie in international relations since it＇s a matter of regional peace and stability. The Abe administration has long pursued a ＂bet-hedging＂ strategy towards China. Although it claims that it attaches great importance to the ties between Japan and China, it pursues ＂Strategic Diplomacy＂ and ＂Value-oriented Diplomacy＂ to hype up the so-called ＂China Threat＂ in international community. It not only makes China-Japan relations to continuously fall into a vicious circle of＂repeated deterioration＂, but also become an uncertainty for peace and stability in East Asia and the regional security. In addition, it reflects the ＂diplomacy dilemma＂ of the Abe administration＇s China policy.
基金Project (2007CB613807) supported by the National Basic Research Program of ChinaProject (35-TP-2009) supported by the Fund of the State Key Laboratory of Solidification Processing in NWPU,ChinaProject (51075333) supported by the National Natural Science Foundation of China
文摘The isothermal compression tests were carried out in the Thermecmastor-Z thermo-simulator at temperatures of 800, 850, 900, 950, 1000 and 1050 ℃ and the strain rates of 0.01, 0.1, 1 and 10 s-1. The influence of deformation temperature and strain rate on the flow stress of Ti-6Al-2Zr-IMo-IV alloy was studied. Based on the experimental data sets, the high temperature deformation behavior of Ti-6A1-2Zr-IMo-IV alloy was presented using the intelligent method of artificial neural network （ANN）. The results indicate that the predicted flow stress values by ANN model is quite consistent with the experimental results, which implies that the artificial neural network is an effective tool for studying the hot deformation behavior of the present alloy. In addition, the development of graphical user interface is implemented using Visual Basic programming language.
文摘The 1780-1760 Ma Taihang dyke swarm and the coeval Xiong’er volcanic province are the most widespread magmatic events occurring post the amalgamation of the two North China cratons.It has been debated whether
文摘The aim of this study is to examine the buyer-seller re-lationship in Hong Kong’s clothing industry.The initialpart investigated the industry’s environment.Four hy-pothesis were developed which were based on the long-term buyer-seller relationships’features.The benefitsthat can enjoy within the stage of long-term buyer-seller relationships was the defined and suggested.
基金Funded by Chongqing Medical University Scientific Research Foundation
文摘A set of novel structural descriptors (molecular hybridization electronegativity-distance vector, VMEDh) was put forward, and the quantitative structure–activity relationship (QSAR) of a series of 17α-Acetoxyprogesterones (APs) was investigated. Taking into account the effect of various hybridized orbits on atomic electronegativities, we developed the structure descriptors with amended electronegativities to build a QSAR model. The 10-parameter model based on VMEDh yields a correlation coefficient R=0.972 and standard deviation SD=0.262, which are more desirable than those of the previous molecular electonegativity-distance vector (MEDV-4) (R=0.969, SD=0.275). By stepwise multiple linear regression, several parameters are selected to construct optimal models. The 7-parameter model based on VMEDh has R=0.960 and SD=0.276; its correlation coefficient (RCV) and standard deviation (SDCV) for leave-one-out procedure crossvalidation are respectively RCV=0.890 and SDCV=0.445. The 6-parameter MEDV-4 model has R=0.946, SD=0.304, RCV=0.903 and SDCV=0.406. It is demonstrated that VMEDh has desirable estimation performance and good predictive capability for this series of chemical compounds.
文摘The relationship between Egypt and Palestine can be traced back to theChalcolithic Age thanks to the evidence of current excavations in the Nile Deltaand Sinal.Palestinian pottery and cast metal objects from the Delta sites of Maadi,Minshat Abu Omar,and elsewhere have proved contacts with Palestine inProtodynastic(Nagada Ⅱ-Ⅲ)times.The Egyptian Protodynastic Period andDynasty 1 were contemporary with the Palestinian EB Ⅰ and EB Ⅲ,and
文摘Piezoelectric composite material (PCM) is an important branch of modernsensor and actuator materials with wide applications in smart structures. In this paper, based onpiezoelectric ceramic, composite and experimental mechanics theories, a kind of 1-3 orthogonalanisotropic PCM (OAPCM) sensor is developed, and the sensing principle is analyzed to describesensor behaviors. In order to determine strain and stress on isotropic or orthogonal anisotropiccomponent surface, the relationships between strain and stress are established. The experimentalresearch on 1-3 OAPCM sensor is carried out in uniaxial and biaxial stress states. The results showthat 1-3 OAPCM sensors offer orthotropic properties of piezoelectricity, and sensing equations canbe used for strain or stress measurement with good accuracy.
基金financially supported by 948 Project(No.2011-4-37)Standardization Project(No.2013-LY-082) of The State Forestry Administration of China
文摘The genus Armeniaca Scop. is well known for its popular cultivated edible fruit trees such as Armeniaca vul- garis Lam. and ornamental flowers such as A. mume Sieb. Another species, A. cathayana Fu et al., one of six important dry fruits （kernel-using apricot）, is cultivated for its edible seeds in North China. In the present study, DNA from 70 individuals of A rmeniaca, including 38 of A. cathayana, 18 ofA. vulgaris, 12 ofA. sibirica, 1 ofA. dasycarpa and 1 of A. mume, was extracted and analyzed using microsatellites and capillary electrophoresis. For 20 polymorphic loci selected, 339 alleles and 140.7 effective alleles were detected. The number of alleles per locus ranged from 8 to 28, with an average of 16.95 alleles per locus. The observed heterozygosity （Ho） and the expected heterozygosity （He） ranged from 0.427 to 0.971 and from 0.737 to 0.912, respectively. The polymorphism information content varied from 0.708 to0.905, with an average of 0.827. Based on the genetic similarity among 70 individuals, a UPGMA was used to establish the phylogenetic relationships. The taxonomic positions among five species were clearly revealed, and A. cathayana was more closely related to A. vulgaris than to A. sibirica. The results will provide a scientific basis for research on the taxonomy, germplasm resources and breeding ofArmeniaca, especially for A. cathayana.
基金Funded by the National Basic Research Program of China(No.2009CB724401)the Major Science and Technology Program of High-end CNC Machine Tools and Basic Manufacturing Equipment(No.2012ZX04003-041)
文摘The true stress-sWain relationships of Ti-5A1-2Sn-2Zr-4Mo-4Cr（TC17） alloy with a wide range of strain rates were investigated by tmiaxial quasi-static and dynamic compression tests, respectively. Quasi- static compression tests were carried out with Instron 8874 test machine, while dynamic compression tests were performed with the split Hopkinson pressure bar （SHPB） which was installed with heating device and synchro- assembly system. The dynamic mechanical behaviors tests of TC17 were carded out from room temperature to 800 ℃ at intervals of 200 ℃ and at high sWain rates （5 500-1 9200 s-l）. The stress-strain curves considering temperature-sWain rate coupling actions were obtained. The Johnson-Cook constitutive model was developed through data fitting of the stress-sWain curves. The material constants in the developed constitutive model can be determined using isothermal and adiabatic stress-strain curves at different strain rates. The Johnson-Cook constitutive model provided satisfied prediction of the plastic flow stress for TC17 alloy.
