With the establishment and the development of China’s socialist market economy, the significance of the word "planed" is fading, while the significance of the
0 IntroductionThe mathematical problems of fracture of compound materials are very important on practical applica-tions. In this paper, we study the plane welding problems of different anisotropic media with holes,the...0 IntroductionThe mathematical problems of fracture of compound materials are very important on practical applica-tions. In this paper, we study the plane welding problems of different anisotropic media with holes,theshape of holes and the interface are arbitrary smooth contours. At first, we establish mathematical models,change it into searching complex stress functions, next, we reduce the primitive problems into boundaryvalue problems, and construct the form of solution, under some general restrictions it is reduced to certainsingular integral equations, finally, the existence and the uniqueness of the solution of which are estab-lished.1 The Representation Formula of Complex Stress展开更多
Some approximate formulas , based on the internal- wave directional spectral model established by Schott and Willebrand (1973), of vertically standing wavemode eigenfunctions and a dispersion relation of internal wave...Some approximate formulas , based on the internal- wave directional spectral model established by Schott and Willebrand (1973), of vertically standing wavemode eigenfunctions and a dispersion relation of internal waves in shallow seas are presented . An optimization method to estimate internal wave directional spectra is described and the confidence interval expression of the estimates is estab -lished .The GM spectral model of oceanic internal waves cannot be used in shallow seas (01 bers, 1983). Internal waves in shallow seas have two origins: oceanic (those generated in and propagating from the deep sea and ocean) and local (Phillips, 1977). As both reveal obvious propagation orientations, it is important to investigate the directional properties of the internal wave field . Though cross- correlation function or cross-spectrum analyses can reveal the directional properties in some degree (Fang et al., 1984, and Fang, 1987), internal-wave directional spectrum analysis can further estimate the main展开更多
If you wish……to be informed about theoretical and applied research on acupuncture In China,……to read the latest important articles written by Chinese acupuncture specialists,…… to learn recent advances in clinic...If you wish……to be informed about theoretical and applied research on acupuncture In China,……to read the latest important articles written by Chinese acupuncture specialists,…… to learn recent advances in clinical application of acupuncture In medical Institutes throughoutChina,……to promote sclentific exchanges with Chinese acupuncture specialists and related medical estab-lishments,ACUPUNCTURE RESEARCH will serve you as a useful medium.Beginning from 1980,the Journal（first published in 1976 under the title ofAcupuncture Anesthesia）is published quarterly with a tableof contents and summary for each article In English.Since 1985 its titles have been selected lobe in-eluded in INDEX MEDICUS.展开更多
Medical history museum is one kind ofnatural science museums.Its main functionis to collect and preserve medical relics andsamples for researching into medical history,and for displaying and popularizing medicalknowle...Medical history museum is one kind ofnatural science museums.Its main functionis to collect and preserve medical relics andsamples for researching into medical history,and for displaying and popularizing medicalknowledge.Since the first such museum展开更多
If you wish…… to be informed about theoretical and applied research on acupuncture in China,…… to read the latest important articles written by Chinese acupuncture specialists,…… to learn recent advances in clin...If you wish…… to be informed about theoretical and applied research on acupuncture in China,…… to read the latest important articles written by Chinese acupuncture specialists,…… to learn recent advances in clinical application of acupuncture in medica1 institutes throughoutChina,…… to promote scientific exchanges with Chinese acupuncture specialists and related rnedical estab-Iishrnents,ACUPUNCTURE RESEARCH will serve you as a useful medium. Beginning frorn 198O, the journal(first published in l976 under the title of Acupuncture Anesthesia) is published quarterly with a tableof contents and sumrnary for each article in English. Since 1985 its titles have been selected to be in-cluded in INDEX MEDICUS.展开更多
Chromatographic method was invented about 80 years ago.Since thengreat development has been made and it is now widely used as an analyti-cal tool in chemistry,biology,medicine and environmental sciences.Since 1970,hig...Chromatographic method was invented about 80 years ago.Since thengreat development has been made and it is now widely used as an analyti-cal tool in chemistry,biology,medicine and environmental sciences.Since 1970,highly precise HPLC(high performance liquid chromatography)pumps,various kinds of columns and high sensitive detectors have beenmanufactured.The computerizing equipment can implement the automaticanalysis under optimal conditions and provide more precise and convenientdata acquisition and processing.The HPLC technique has become moreand more important for the biologists and medical scientists in展开更多
In order to explore the mechanisms by whichbenzo(a)pyrene(BaP) exerts its mutagenic andcarcinogenic effects,the human peripheralblood lymphocytes from healthy donors wereincubated with ~3H-BaP and the covalentbinding ...In order to explore the mechanisms by whichbenzo(a)pyrene(BaP) exerts its mutagenic andcarcinogenic effects,the human peripheralblood lymphocytes from healthy donors wereincubated with ~3H-BaP and the covalentbinding were determined by scintillatingcount of the radioactivity of the extractedDNA samples.展开更多
24 0rganophosphates(0PPs) were tested by Salmonella test(SAL),B.subtilis DNA repair test(SUB),mouse micronucleustest(MNT-M),CHL cell micronucleus test(MNT-C) and SOSinduction test(S0S).The results of 33 0PPs in SCE te...24 0rganophosphates(0PPs) were tested by Salmonella test(SAL),B.subtilis DNA repair test(SUB),mouse micronucleustest(MNT-M),CHL cell micronucleus test(MNT-C) and SOSinduction test(S0S).The results of 33 0PPs in SCE test invitro from literatures were also analysed.The results werecontradicted to those reported by Fahrig and Klopman,thatis not only the methyl-0PPs shown genetic activity or highprobability of positive reaction,but the ethyl-0PPs in pre-sent studies,also demostrated high positive reaction rate.展开更多
文摘With the establishment and the development of China’s socialist market economy, the significance of the word "planed" is fading, while the significance of the
文摘0 IntroductionThe mathematical problems of fracture of compound materials are very important on practical applica-tions. In this paper, we study the plane welding problems of different anisotropic media with holes,theshape of holes and the interface are arbitrary smooth contours. At first, we establish mathematical models,change it into searching complex stress functions, next, we reduce the primitive problems into boundaryvalue problems, and construct the form of solution, under some general restrictions it is reduced to certainsingular integral equations, finally, the existence and the uniqueness of the solution of which are estab-lished.1 The Representation Formula of Complex Stress
基金Project supported by the National Natural Science Foundation of China
文摘Some approximate formulas , based on the internal- wave directional spectral model established by Schott and Willebrand (1973), of vertically standing wavemode eigenfunctions and a dispersion relation of internal waves in shallow seas are presented . An optimization method to estimate internal wave directional spectra is described and the confidence interval expression of the estimates is estab -lished .The GM spectral model of oceanic internal waves cannot be used in shallow seas (01 bers, 1983). Internal waves in shallow seas have two origins: oceanic (those generated in and propagating from the deep sea and ocean) and local (Phillips, 1977). As both reveal obvious propagation orientations, it is important to investigate the directional properties of the internal wave field . Though cross- correlation function or cross-spectrum analyses can reveal the directional properties in some degree (Fang et al., 1984, and Fang, 1987), internal-wave directional spectrum analysis can further estimate the main
文摘If you wish……to be informed about theoretical and applied research on acupuncture In China,……to read the latest important articles written by Chinese acupuncture specialists,…… to learn recent advances in clinical application of acupuncture In medical Institutes throughoutChina,……to promote sclentific exchanges with Chinese acupuncture specialists and related medical estab-lishments,ACUPUNCTURE RESEARCH will serve you as a useful medium.Beginning from 1980,the Journal（first published in 1976 under the title ofAcupuncture Anesthesia）is published quarterly with a tableof contents and summary for each article In English.Since 1985 its titles have been selected lobe in-eluded in INDEX MEDICUS.
文摘Medical history museum is one kind ofnatural science museums.Its main functionis to collect and preserve medical relics andsamples for researching into medical history,and for displaying and popularizing medicalknowledge.Since the first such museum
文摘If you wish…… to be informed about theoretical and applied research on acupuncture in China,…… to read the latest important articles written by Chinese acupuncture specialists,…… to learn recent advances in clinical application of acupuncture in medica1 institutes throughoutChina,…… to promote scientific exchanges with Chinese acupuncture specialists and related rnedical estab-Iishrnents,ACUPUNCTURE RESEARCH will serve you as a useful medium. Beginning frorn 198O, the journal(first published in l976 under the title of Acupuncture Anesthesia) is published quarterly with a tableof contents and sumrnary for each article in English. Since 1985 its titles have been selected to be in-cluded in INDEX MEDICUS.
文摘Chromatographic method was invented about 80 years ago.Since thengreat development has been made and it is now widely used as an analyti-cal tool in chemistry,biology,medicine and environmental sciences.Since 1970,highly precise HPLC(high performance liquid chromatography)pumps,various kinds of columns and high sensitive detectors have beenmanufactured.The computerizing equipment can implement the automaticanalysis under optimal conditions and provide more precise and convenientdata acquisition and processing.The HPLC technique has become moreand more important for the biologists and medical scientists in
文摘In order to explore the mechanisms by whichbenzo(a)pyrene(BaP) exerts its mutagenic andcarcinogenic effects,the human peripheralblood lymphocytes from healthy donors wereincubated with ~3H-BaP and the covalentbinding were determined by scintillatingcount of the radioactivity of the extractedDNA samples.
文摘24 0rganophosphates(0PPs) were tested by Salmonella test(SAL),B.subtilis DNA repair test(SUB),mouse micronucleustest(MNT-M),CHL cell micronucleus test(MNT-C) and SOSinduction test(S0S).The results of 33 0PPs in SCE test invitro from literatures were also analysed.The results werecontradicted to those reported by Fahrig and Klopman,thatis not only the methyl-0PPs shown genetic activity or highprobability of positive reaction,but the ethyl-0PPs in pre-sent studies,also demostrated high positive reaction rate.
