1,406 Result(s)
within
Yi-**g Zheng
-
Article
The Hamilton's principle of nonholonomic variable mass systems
The Hamilton's principle is extended to the most general, nonholonomic variable mass systems. The Hamilton's principle of nonholonomic variable mass systems is obtained and is illustrated with examples.
-
Chapter and Conference Paper
Design Characteristics of the 1.56 m Astrometric Telescope and its Usage in Astrometry
The 1.56m astrometric telescope (Fig. 1) is designed mainly for determining trigonometric parallaxes of faint stars.
-
Chapter and Conference Paper
The Main Features of the 1.56-M Telescope and its Status Quo
This telescope was designed for determining the trigonometric parallaxes of faint stars. The otpical configuration is a Ritchey-Chrétien system and has only a f/10 Cassegrain focus for photographic work.
-
Article
Significance of a δ13C anomaly near the Devonian/Carboniferous boundary at the Muhua section, South China
The Muhua section of Guizhou Province, South China is one of three candidates for the Devonian/Carboniferous international boundary stratotype1. Although palaeontological and stratigraphical data have been publis...
-
Chapter
Metabolism and Action of 2′, 2′ -Difluorodeoxycytidine: Self-Potentiation of Cytotoxicity
The clinical success of arabinosylcytosine evoked an interest in other deoxycytidine analogues. One such congener is 2′,2′-difluorodeoxycytidine (dFdC., Gemcitabine), which has to pass through a repertoire of ...
-
Article
The purification of recombinant hepatitis B surface antigen by hollow fibre ultrafiltration membrane diafiltration
Recombinant hepatitis B surface antigen (HBsAg) broth was purified by diafiltration with a hollow fibre ultrafiltration membrane (cut off 100 kDa), by pre—treating the HBsAg broth with enzyme, most of the cont...
-
Article
The libration points in photogravitational restricted three-body problem
The photogravitational restricted three-body problem in which the mass reduction factors of two primaries q1, q2 ε −∞,1] are studied and an analytic method to estimate the number of libration points and to calcul...
-
Article
The study of chamber rockburst by the CUSP model of catastrophe theory
By means of CUSP model of catastrophe theory, this paper has studied the physics process of rockburst occurred on circular chamber. The present paper has not only described the instability process of rockburst...
-
Article
GaAs/AlGaAs Multiquantum Well Infrared Detector Array with 6.0 μm Response Width
10×16 GaAs/AlGaAs quantum well infrared detector arrays with peak responsivity at 9.3μm have been achieved with front-side normal illumination based on a waveguide of doubly periodic grating coupler. The detec...
-
Article
Good regulation of acupuncture in simple obesity patients with stomach-intestine excessive heat type
In order to investigate the regulatory effect of acupuncture on obesity patients with the Stomach-Intestine Excessive Heat Type, the pre-acupunctureal and post-acupunctural obesity index and biochemical indice...
-
Article
Redox Properties of CexZr1−xO2 Mixed Oxides Prepared by the Sol–gel Method
-
Article
Mutations in the gene encoding gap junction protein β-3 associated with autosomal dominant hearing impairment
Hearing impairment is the most commonly occurring condition that affects the ability of humans to communicate 1 . More than 50%...
-
Article
Distinguishing RBL-like Objects and XBL-Like Objects With thePeak Emission Frequency of the Overall Energy Spectrum
We investigate quantitatively how the peak emission frequency of the overall energy spectrum is at work in distinguishing RBL-like and XBL-like objects. We employ the sample of Giommi et al. (1995) to study the d...
-
Article
Telomerase RNA and telomerase activity in trophoblastic tumors
To gain better understanding of telomerase’s possible role in the carcinogenesis of gestational trophoblastic tumors, the authors conducted RT-PCR amplification-based analysis and carried out telomeric repeat ...
-
Article
Orientation Distribution Functions for Microstructures of Heterogeneous Materials (II)—Crystal Distribution Functions and Irreducible Tensors Restricted by Various Material Symmetries
The explicit representations for tensorial Fourier expansion of 3-D crystal orientation distribution functions (CODFs) are established. In comparison with that the coefficients in the mth term of the Fourier exp...
-
Article
Orientation distribution functions for microstructures of heterogeneous materials (II)—Crystal distribution functions and irreducible tensors restricted by various material symmetries
The explicit representations for tensorial Fourier expansion of 3-D crystal orientation distribution functions (CODFs) are established. In comparison with that the coefficients in the mth term of the Fourier e...
-
Article
Open AccessRole of CD28/B7 costimulation and IL-12/IL-10 interaction in the radiation-induced immune changes
The present paper aims at studying the role of B7/CD28 interaction and related cytokine production in the immunological changes after exposure to different doses of ionizing radiation.
-
Article
Methane Aromatization Under O2-Free Conditions on Zinc Modified Mo/HZSM-5 Catalyst
The influence of Zn content, reaction temperature and pretreatment conditions on a Zn-modified Mo/HZSM-5 catalyst for methane aromatization were studied. It was found that the addition of Zn promoted the react...
-
Article
E-cadherin and CD44V6 expresion in human hepatocellular carcinomas
Objective: To investigate the significance of E-cadherin (E-cad) and CD44v6 expression in human hepatocellular carcinomas (HCCs). Methods: An immunohistochemical method was used to detect E-cad and CD44v6 expr...
-
Chapter and Conference Paper
Design and Realization of a Low Power Register File Using Energy Model
This paper uses a analytical-based characterization model to discuss energy consumption of register files with different circuit techniques that using multi-port SRAM technology. Energy distribution chart of r...
