Since its founding in 1980 by a group of first generation biologists after the reform and opening of China,Zoological Research（ZR）has followed a rather long and difficult 35-year journey.However,through the excellen...Since its founding in 1980 by a group of first generation biologists after the reform and opening of China,Zoological Research（ZR）has followed a rather long and difficult 35-year journey.However,through the excellent guidance of our former and current editors-in-chief,the extraordinary members of the editorial board and reviewers,and most importantly,展开更多
This research reviews the construction process of business English teachers in China,and puts forward the notion that business English teachers should establish correct scientific research concept,correctly understand...This research reviews the construction process of business English teachers in China,and puts forward the notion that business English teachers should establish correct scientific research concept,correctly understand the dialectical relationship between scientific research capability and teaching,the role of scientific research capability and the necessity for teachers to carry out scientific research in teaching.Business English teachers should realize the deficiency of their own scientific research capability,and the necessity of strengthening it.They should learn to combine scientific research theory with teaching practice.Business English teachers in different colleges and universities should learn how to improve their research capability according to reality.Only in this way can they improve their understanding of the necessity of strengthening their scientific research capability and promoting their own professional quality as well as improving students’learning ability and cultivating high-level business English personnel for the society.展开更多
Several generations of mafic dyke swarms(2.7 to 0.8Ga),highlighted by aeromagnetic data,petrography,geochemistry,isotope geology and mostly U-Pb baddeleyite ages,crosscut the Archean and
Ice core δ\{\}\+\{18\}O records from the No.1 glacier at the head of the rümqi River were used to characterize the relationship between δ\{\}\+\{18\}O and contemporaneous surface air temperature (Ta) nearby the...Ice core δ\{\}\+\{18\}O records from the No.1 glacier at the head of the rümqi River were used to characterize the relationship between δ\{\}\+\{18\}O and contemporaneous surface air temperature (Ta) nearby the Daxigou Meteorological Station (3539 m above sea level, ～2km away from the ice core drilling site). Although the ice core records of annually averaged δ\{\}\+\{18\}O are positively correlated with contemporaneous surface air temperature, especially summer air temperature, the correlation is less significant than that for the precipitation samples due to depositional and post\|depositional modification processes. However, the climatological significance of the ice core δ\{\}\+\{18\}O records can be still preserved to a certain degree, which might extend the application of high altitude and sub\|tropical ice core δ\{\}\+\{18\}O records to paleoclimate reconstruction.展开更多
The distributions of traps and electron density in the interfaces between polyimide （PI） matrix and Al2O3 nanoparticles are researched using the isothermal decay current and the small-angle x-ray scattering （SAXS）...The distributions of traps and electron density in the interfaces between polyimide （PI） matrix and Al2O3 nanoparticles are researched using the isothermal decay current and the small-angle x-ray scattering （SAXS） tests. According to the electron density distribution for quasi two-phase mixture doped by spherical nanoparticles, the electron densities in the interfaces of PI/Al2O3 nanocomposite films are evaluated. The trap level density and carrier mobility in the interface are studied. The experimental results show that the distribution and the change rate of the electron density in the three layers of interface are different, indicating different trap distributions in the interface layers. There is a maximum trap level density in the second layer, where the maximum trap level density for the nanocomposite film doped by 25 wt% is 1.054 × 10^22 eV·m^-3 at 1.324eV, resulting in the carrier mobility reducing. In addition, both the thickness and the electron density of the nanocomposite film interface increase with the addition of the doped Al2O3 contents. Through the study on the trap level distribution in the interface, it is possible to further analyze the insulation mechanism and to improve the performance of nano-dielectric materials.展开更多
Hepatocellular carcinoma(HCC)is one of the most common malignant tumors in the world with a high incidence and has become one of the most malignant cancers worldwide.Its clinical treatment mainly includes surgical int...Hepatocellular carcinoma(HCC)is one of the most common malignant tumors in the world with a high incidence and has become one of the most malignant cancers worldwide.Its clinical treatment mainly includes surgical intervention,chemotherapy,and iirununotherapy,with poor curative effect and prognosis.In recent years,with the development of basic research,it has been revealed that protein tyrosine phosphatase receptor-type O(PTPRO)plays an important role in the pathogenesis of hepatocellular carcinoma.Protein tyrosine phosphatase receptor-type O is a new type of protein tyrosine phosphatase,which has been proven to inhibit oncoprotein.In this paper,the potential mechanism of protein tyrosine phosphatase receptor-type O in the progression of hepatocellular carcinoma is discussed to provide reference for clinical treatment and drug development.展开更多
采用电渣重熔方法生产的空心钢锭由于其独特的结构和凝固特性,具有普通钢锭无可比拟的优越性.本文以电渣重熔35CrMo材质的空心锭为研究对象,利用金相显微镜(OM)和Image-Pro Plus 6.0详细地研究了电渣重熔空心钢锭的凝固组织、夹杂物形貌...采用电渣重熔方法生产的空心钢锭由于其独特的结构和凝固特性,具有普通钢锭无可比拟的优越性.本文以电渣重熔35CrMo材质的空心锭为研究对象,利用金相显微镜(OM)和Image-Pro Plus 6.0详细地研究了电渣重熔空心钢锭的凝固组织、夹杂物形貌等.通过与电极的对比,研究了电渣重熔工艺的优越性.结果表明:电渣重熔空心钢锭具有元素分布均匀、组织致密、夹杂物去除能力强等特点.展开更多
文摘Since its founding in 1980 by a group of first generation biologists after the reform and opening of China,Zoological Research（ZR）has followed a rather long and difficult 35-year journey.However,through the excellent guidance of our former and current editors-in-chief,the extraordinary members of the editorial board and reviewers,and most importantly,
文摘This research reviews the construction process of business English teachers in China,and puts forward the notion that business English teachers should establish correct scientific research concept,correctly understand the dialectical relationship between scientific research capability and teaching,the role of scientific research capability and the necessity for teachers to carry out scientific research in teaching.Business English teachers should realize the deficiency of their own scientific research capability,and the necessity of strengthening it.They should learn to combine scientific research theory with teaching practice.Business English teachers in different colleges and universities should learn how to improve their research capability according to reality.Only in this way can they improve their understanding of the necessity of strengthening their scientific research capability and promoting their own professional quality as well as improving students’learning ability and cultivating high-level business English personnel for the society.
文摘Several generations of mafic dyke swarms(2.7 to 0.8Ga),highlighted by aeromagnetic data,petrography,geochemistry,isotope geology and mostly U-Pb baddeleyite ages,crosscut the Archean and
文摘Ice core δ\{\}\+\{18\}O records from the No.1 glacier at the head of the rümqi River were used to characterize the relationship between δ\{\}\+\{18\}O and contemporaneous surface air temperature (Ta) nearby the Daxigou Meteorological Station (3539 m above sea level, ～2km away from the ice core drilling site). Although the ice core records of annually averaged δ\{\}\+\{18\}O are positively correlated with contemporaneous surface air temperature, especially summer air temperature, the correlation is less significant than that for the precipitation samples due to depositional and post\|depositional modification processes. However, the climatological significance of the ice core δ\{\}\+\{18\}O records can be still preserved to a certain degree, which might extend the application of high altitude and sub\|tropical ice core δ\{\}\+\{18\}O records to paleoclimate reconstruction.
基金Supported by the National Natural Science Foundation of China under Grant Nos 51337002,51077028,51502063 and 51307046the Foundation of Harbin Science and Technology Bureau of Heilongjiang Province under Grant No RC2014QN017034
文摘The distributions of traps and electron density in the interfaces between polyimide （PI） matrix and Al2O3 nanoparticles are researched using the isothermal decay current and the small-angle x-ray scattering （SAXS） tests. According to the electron density distribution for quasi two-phase mixture doped by spherical nanoparticles, the electron densities in the interfaces of PI/Al2O3 nanocomposite films are evaluated. The trap level density and carrier mobility in the interface are studied. The experimental results show that the distribution and the change rate of the electron density in the three layers of interface are different, indicating different trap distributions in the interface layers. There is a maximum trap level density in the second layer, where the maximum trap level density for the nanocomposite film doped by 25 wt% is 1.054 × 10^22 eV·m^-3 at 1.324eV, resulting in the carrier mobility reducing. In addition, both the thickness and the electron density of the nanocomposite film interface increase with the addition of the doped Al2O3 contents. Through the study on the trap level distribution in the interface, it is possible to further analyze the insulation mechanism and to improve the performance of nano-dielectric materials.
文摘Hepatocellular carcinoma(HCC)is one of the most common malignant tumors in the world with a high incidence and has become one of the most malignant cancers worldwide.Its clinical treatment mainly includes surgical intervention,chemotherapy,and iirununotherapy,with poor curative effect and prognosis.In recent years,with the development of basic research,it has been revealed that protein tyrosine phosphatase receptor-type O(PTPRO)plays an important role in the pathogenesis of hepatocellular carcinoma.Protein tyrosine phosphatase receptor-type O is a new type of protein tyrosine phosphatase,which has been proven to inhibit oncoprotein.In this paper,the potential mechanism of protein tyrosine phosphatase receptor-type O in the progression of hepatocellular carcinoma is discussed to provide reference for clinical treatment and drug development.
文摘采用电渣重熔方法生产的空心钢锭由于其独特的结构和凝固特性,具有普通钢锭无可比拟的优越性.本文以电渣重熔35CrMo材质的空心锭为研究对象,利用金相显微镜(OM)和Image-Pro Plus 6.0详细地研究了电渣重熔空心钢锭的凝固组织、夹杂物形貌等.通过与电极的对比,研究了电渣重熔工艺的优越性.结果表明:电渣重熔空心钢锭具有元素分布均匀、组织致密、夹杂物去除能力强等特点.
