Potassium iodate （KIOs） is a multifunctional material with good piezoelectric, pyroelectric, electo-optical and nonlinear optical properties. Owing to its nonlinear optical property, it has the prospect of applicati...Potassium iodate （KIOs） is a multifunctional material with good piezoelectric, pyroelectric, electo-optical and nonlinear optical properties. Owing to its nonlinear optical property, it has the prospect of application in the laser technology. However, the most difficult problem in crystal growth is how to obtain large KIOs single crystal with optical quality. S. A. Hamid （1974） reported that small KIO3 single crystal展开更多
In recent years,pulse magnetic stimulation technique has been paid more andmore attention by the people engaged in noninvasive diagnosis and therapy work.Compared with electric stimulation,it has the advantages of bei...In recent years,pulse magnetic stimulation technique has been paid more andmore attention by the people engaged in noninvasive diagnosis and therapy work.Compared with electric stimulation,it has the advantages of being noninvasive,pain-less and safe,and has been used to examine and treat disorders of nerve system suc-cessfully.Application in other fields is still a challenge to many researchers.We展开更多
生长抑制因子（inhibitor of growth．ING）家族是学者在筛选生长抑制基因的过程中检测到其成员之一的INGl而偶然发现的一个新家族，已被归入肿瘤抑制基因家族这个正在不断发展的群体。该群体的成员含有一系列与转录调控相关的结构序列...生长抑制因子（inhibitor of growth．ING）家族是学者在筛选生长抑制基因的过程中检测到其成员之一的INGl而偶然发现的一个新家族，已被归入肿瘤抑制基因家族这个正在不断发展的群体。该群体的成员含有一系列与转录调控相关的结构序列。能编码相应的蛋白因子。其中，P33INGIb是ING1的蛋白产物之一，具有多种生物学功能。本文收集近年相关资料，就P33ING1b的基因定位、基因结构、功能、故障原因及其与某些皮肤病的关系综述如下．为相关研究及临床应用开拓新思路。展开更多
Using the eosmid (pHC 79) as a vector, we have constructed a nuclear gene library of the international rice IR-26 which carries several different disease resistant genes. The rice DNA was extracted and purified from t...Using the eosmid (pHC 79) as a vector, we have constructed a nuclear gene library of the international rice IR-26 which carries several different disease resistant genes. The rice DNA was extracted and purified from the nuclei, and its molecular weight was determined to be 50-100kb. The cosmid DNA was prepared by the method of alkali denaturation. Both rice展开更多
In recent years, in （K-, π-） strangeness-exchange reaction on nuclei, some hypernuclear spectra such as Λ9Be, Σ9Be, and Λ12C, Σ12C have been found. By analysing the experimental excited spectra of recoilless st...In recent years, in （K-, π-） strangeness-exchange reaction on nuclei, some hypernuclear spectra such as Λ9Be, Σ9Be, and Λ12C, Σ12C have been found. By analysing the experimental excited spectra of recoilless strangeness-exchange reaction （K-, π-）, one can展开更多
Ⅰ. INTRODUCTION Cerenkov radiation will be produced when the velocity of charged particles passing through a medium is faster than the phase velocity of light in the same medium. The moving direction of the radiation...Ⅰ. INTRODUCTION Cerenkov radiation will be produced when the velocity of charged particles passing through a medium is faster than the phase velocity of light in the same medium. The moving direction of the radiation photons is determined by the following formula:展开更多
The energy variation of a physical quantity can be expressed as an orthogonal polynomial expansion. These polynomials are determined by the density moments of Hamiltonian. Following the notation in Ref. [1], the expec...The energy variation of a physical quantity can be expressed as an orthogonal polynomial expansion. These polynomials are determined by the density moments of Hamiltonian. Following the notation in Ref. [1], the expectation value of an operator (?) at energy E is given展开更多
This paper makes some investigation to the qūestion whether there exists an expansiveflow on some compact metric space.The main result is that there exists no expansive flowon a compact 2-manifold.
Rhizobium japonicum mutant (B15-11) and soybean plant mutants （18-79, 33-79, 55-79, 66-80 and 77-80） were obtained by the mutation treatment with nitrosoguanidine (N-methyl-N′-nitro-
A device for high-speed framing interferography for diagnosing transient phenomena in transparent media has been successfully construeted through research and development in the Institute of Mechanics, Academia Sinica...A device for high-speed framing interferography for diagnosing transient phenomena in transparent media has been successfully construeted through research and development in the Institute of Mechanics, Academia Sinica. It consists of a pulsed He-Ne laser source, an interferometer with simple shock-proof structure and a high-speed camera. Since the device is sample in structure and highly shock-proof, the interferograms obtained are vividly clear. Its perfor-展开更多
文摘Potassium iodate （KIOs） is a multifunctional material with good piezoelectric, pyroelectric, electo-optical and nonlinear optical properties. Owing to its nonlinear optical property, it has the prospect of application in the laser technology. However, the most difficult problem in crystal growth is how to obtain large KIOs single crystal with optical quality. S. A. Hamid （1974） reported that small KIO3 single crystal
文摘In recent years,pulse magnetic stimulation technique has been paid more andmore attention by the people engaged in noninvasive diagnosis and therapy work.Compared with electric stimulation,it has the advantages of being noninvasive,pain-less and safe,and has been used to examine and treat disorders of nerve system suc-cessfully.Application in other fields is still a challenge to many researchers.We
文摘生长抑制因子（inhibitor of growth．ING）家族是学者在筛选生长抑制基因的过程中检测到其成员之一的INGl而偶然发现的一个新家族，已被归入肿瘤抑制基因家族这个正在不断发展的群体。该群体的成员含有一系列与转录调控相关的结构序列。能编码相应的蛋白因子。其中，P33INGIb是ING1的蛋白产物之一，具有多种生物学功能。本文收集近年相关资料，就P33ING1b的基因定位、基因结构、功能、故障原因及其与某些皮肤病的关系综述如下．为相关研究及临床应用开拓新思路。
文摘Using the eosmid (pHC 79) as a vector, we have constructed a nuclear gene library of the international rice IR-26 which carries several different disease resistant genes. The rice DNA was extracted and purified from the nuclei, and its molecular weight was determined to be 50-100kb. The cosmid DNA was prepared by the method of alkali denaturation. Both rice
文摘In recent years, in （K-, π-） strangeness-exchange reaction on nuclei, some hypernuclear spectra such as Λ9Be, Σ9Be, and Λ12C, Σ12C have been found. By analysing the experimental excited spectra of recoilless strangeness-exchange reaction （K-, π-）, one can
文摘Ⅰ. INTRODUCTION Cerenkov radiation will be produced when the velocity of charged particles passing through a medium is faster than the phase velocity of light in the same medium. The moving direction of the radiation photons is determined by the following formula:
文摘The energy variation of a physical quantity can be expressed as an orthogonal polynomial expansion. These polynomials are determined by the density moments of Hamiltonian. Following the notation in Ref. [1], the expectation value of an operator (?) at energy E is given
文摘This paper makes some investigation to the qūestion whether there exists an expansiveflow on some compact metric space.The main result is that there exists no expansive flowon a compact 2-manifold.
文摘Rhizobium japonicum mutant (B15-11) and soybean plant mutants （18-79, 33-79, 55-79, 66-80 and 77-80） were obtained by the mutation treatment with nitrosoguanidine (N-methyl-N′-nitro-
文摘A device for high-speed framing interferography for diagnosing transient phenomena in transparent media has been successfully construeted through research and development in the Institute of Mechanics, Academia Sinica. It consists of a pulsed He-Ne laser source, an interferometer with simple shock-proof structure and a high-speed camera. Since the device is sample in structure and highly shock-proof, the interferograms obtained are vividly clear. Its perfor-
