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  1. No Access

    Article

    Climatic variations in China during the quaternary

    Climatic variations in China during the Quaternary have long been a question of debate. Considerable data now available support Professor Li Siguang's (J. S. Lee) suggestion that there were four glacial period...

    Duan Wanti, Pu Quingyu, Wu **hao in GeoJournal (1980)

  2. No Access

    Article

    A physical model of the structure and attenuation of shock waves in metals

    In this paper, a physical model of the structure and attenuation of shock waves in metals is presented. In order to establish the constitutive equations of materials under high velocity deformation and to stud...

    Duan Zhou-** in Applied Mathematics and Mechanics (1981)

  3. No Access

    Article

    The growth striations and ferroelectric domain structures in Czochralski-grown LiNbO3 single crystals

    The rotational striations and power striations are studied in LiNbO3 crystals and one-to-one correspondence between the striations and temperature fluctuations is demonstrated. The ferroelectric domain structures...

    Nai-Ben Ming, **g-Fen Hong, Duan Feng in Journal of Materials Science (1982)

  4. No Access

    Article

    Echocardiographic observation on pulmonary arterial diastolic pressure and resistance before and after oxygen inhalation in 30 newborns

    Using the echocardiographic technique before and after oxygen inhalation, we observed pulmonary and aortic valves of 30 normal newborns within 24 hrs after birth. Right ventricular pre-ejection period/ right v...

    Tang Taiqin Postgraduate, Duan Shengfu, Zhang Qing** in Acta Academiae Medicinae Wuhan (1982)

  5. No Access

    Article

    Assessment of the clinical value of impedance pulmonary rheogram in the early diagnosis of cor pulmonale

    The impedance pulmonary rheogram (IPR) and its first derivation of 83 patients with chronic cor pulmonale (CCP) and 50 healthy persons were measured and analyzed. The results indicated that the following param...

    Zhong **annian, Duan Shengfu, Niu Ruji in Acta Academiae Medicinae Wuhan (1982)

  6. No Access

    Article

    Experimental studies on the antitumor action of free radicals: Antitumor action of galvinoxyl

    Galvinoxyl is a long-lived free radical and a highly efficient scavenger of shorter-lived free radicals. In vitro studies demonstrated that galvinoxyl has an inhibitory effect on tumor cells of sarcoma 180 and...

    Yu Lijian, Ding Yu, Ma Rundi, Liu Wenqin, Duan Xuezhi… in Acta Academiae Medicinae Wuhan (1983)

  7. No Access

    Article

    Studies on some parameters of tricuspid valve echocardiogram in the early diagnosis of chronic cor pulmonale

    Using tricuspid valve echocardiogram, the right ventricular time intervals and relevant parameters of the normal persons were studied and compared with those of the patients with chronic cor pulmonale. Six par...

    Tang Taiqin, Duan Shengfu, Zhang Qing** in Acta Academiae Medicinae Wuhan (1983)

  8. No Access

    Chapter and Conference Paper

    High field I–V characteristics of orthorhombic TaS3

    The do I–V characteristics of orthorhombic TaS3 have been measured up to the field as high as 7000 V/cm inn the temperature range of 77 K – 300 K. Some new features have been revealed. The results support the sin...

    Zhang Dian-lin, Duan Hong-min, Lin Shin-yuan, Wu Pei-jun in Charge Density Waves in Solids (1985)

  9. No Access

    Article

    Observation of dislocations and subboundaries in the optically active crystal Bi12GeO20 with reflection birefringence topography

    The birefringence topography of a Bi12GeO20 single crystal which has a strong natural optical activity is presented. The natural optical activity of the crystal may be completely compensated by reflection polaris...

    **u -Ying Xu, Duan Feng in Journal of Materials Science (1985)

  10. No Access

    Article

    Genetic variations in the hybrids of rice (Oryza sativa) and sorghum (Sorghum vulgare)

    Some of results from morphological and cytological observations and esterase-isozyme studies of a rice-sorghum hybrid are presented in this paper. There is a great diversity of morphological characters and som...

    Zu Deming, Chen Shanbao, Duan **aolan, Fu Junhua… in Theoretical and Applied Genetics (1985)

  11. No Access

    Article

    A Mössbauer investigation of the formation process of glauconite

    Glauconites are of particular interest for the understanding of the characteristics of marine deposits. The glauconite formation processes in the sediments of the Yellow Sea and the East China Sea were investi...

    Liu Rongchuan, Wang Shixin, Hsia Yuanfu, Duan Weimin, Chen Lirong in Hyperfine Interactions (1986)

  12. No Access

    Article

    Study on serum lipoprotein cholesterol and lipid levels of healthy children at preschool age

    The serum lipid and lipoprotein levels of 366 healthy children at preschool age are presented. The serum lipid and lipoprotein cholesterol concentrations vary with age. As compared to boys, a tending higher HD...

    Wei Luo-sheng, Liu Ling-jun, Wang Ru-duan in Acta Academiae Medicinae Wuhan (1986)

  13. No Access

    Chapter and Conference Paper

    Risk Management in a Hierarchical Multiobjective Framework

    This paper focuses on the issues of risk management in a hierarchical multi-objective framework. A discussion of the control of expected extreme values is followed by a description of a risk management model s...

    Duan Li, Yacov Y. Haimes in Toward Interactive and Intelligent Decision Support Systems (1987)

  14. No Access

    Chapter

    The effect of transverse shear deformations on ring-shaped elastic plates

    In this paper, the difficulty of resolving the fundamental equations of E. Reissner’s theory of the bending of finite thick plates is overcome by means of the theory of generalized functions and properties of ...

    Cheng Chang-Jun, Shang **n-Chun, Duan Dai-Ming… in Progress in Applied Mechanics (1987)

  15. No Access

    Article

    The superconductive properties and crystal structure of Ba2(Y1−x Pr x )Cu3O9−y solid solutions

    A series of Ba2(Y1−x Pr x )Cu3O9−y solid solutions were prepared with the orthorhombic distorted perovskite structure. The compound Ba2PrCu3O9−y belonging to tetragonal system ...

    J. K. Liang, X. T. Xu, S. S. **e, G. H. Rao… in Zeitschrift für Physik B Condensed Matter (1987)

  16. No Access

    Article

    The study of diffraction radiation oscillation

    Theoretical and experimental study of Diffraction Radiation Oscillator (DRO) is reported in this paper, it is the first work done in P. R. China. The sphere-cylindrical open cavity used in the DRO has been ana...

    Liu Shenggang, Chen Jiayu, Yu Shanfu… in International Journal of Infrared and Mill… (1987)

  17. No Access

    Article

    A real-time interprocessor synchronization algorithm for communication in distributed computer systems

    A real-time synchronization algorithm for interprocessor communication is presented, which is based on the techniques of Reference 2, except that buffered communication is used. The upper and lower bounds of t...

    ** Duan, **yao Cai in Journal of Computer Science and Technology (1987)

  18. No Access

    Chapter and Conference Paper

    The Simulated Performance of a Real-Time Interprocessor Synchronization Algorithm Based on Event-Driven Method

    The stochastic simulation to the performance of a real-time synchronization algorithm for interprocessor communications is discussed. The results of the simulation are consistent with that of the mathematical ...

    Duan ** in Systems Analysis and Simulation I (1988)

  19. No Access

    Article

    Fourier transform infrared spectroscopy as a tool for the study of rare earths carbohydrates complexes

    FT-IR spectra of the mixtures of praseodymium chloride and glucose in glassy state were investigated. From the changes of relative intensity and shifts of the characteristic frequency of glucose and water, it ...

    Hong Liang, Hai Guo, Duan -Fu Xu, ** -Guang Wu in Microchimica Acta (1988)

  20. No Access

    Chapter and Conference Paper

    Reactions in the Presence of Cyclodextrins

    The bromination of toluene and the oxidation of α-pinene were studied in presence of cyclodextrins. The bromination reaction has been carried out in acetic acid of different concentrations at different tempera...

    Dao-dao Zhang, Nai-ju Huang, Guo-liang Chen… in Proceedings of the Fourth International Sy… (1988)

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