1,766 Result(s)

Article

Search for non-minimal Higgs bosons inZ ⁰ decays

We report on a search for the neutral and charged Higgs bosons predicted by models of spontaneous symmetry breaking with more than one Higgs doublet field. No signals are observed. We set model-independent lim...

O. Adriani, M. Aguilar-Benitez, S. Ahlen… in Zeitschrift für Physik C Particles and Fie… (1993)

Article

Measurement of cross sections and leptonic forward-backward asymmetries at theZ pole and determination of electroweak parameters

We report on the measurement of the leptonic and hadronic cross sections and leptonic forward-backward asymmetries at theZ peak with the L3 detector at LEP. The total luminosity of 40.8 pb⁻¹ collected in the year...

M. Acciarri, A. Adam, O. Adriani… in Zeitschrift für Physik C Particles and Fie… (1994)

Article

Measurement of the branching ratiosb →e ν X, μ ν X, τ ν X andν X

The inclusive semileptonic branching ratios b→eνX,μ νX,τ νX andνX have been measured at LEP with the L3 detector. The analysis is based on 2-jet hadronic Z decays obtained in the data collected between 1991 and 1...

M. Acciarri, A. Adam, O. Adriani… in Zeitschrift für Physik C Particles and Fie… (1996)

Article

Study on microstructures and properties of several kinds of hot working die steel

This paper deals with the microstructures and properties of AISI H13(4Cr5MoSiV1), UHB QRO 90M and 4Cr3Mo2V steels, and then discusses the means of improving the service life of hot working die. The results sho...

Fuming Wei, Zheng Huang, Yanian Zhu… in Journal of Shanghai University (English Ed… (1998)

Article

Improvement of heating method for measuring the wetness of flowing wet steam

In this paper, an improvement of heating method for measuring wetness of the flowing wet steam is developed, the basic principle of the heating method is presented and the mathematical model has been built for...

Yan-Feng Li, **n-Jun Wang, Ting-**ang Xu in Journal of Thermal Science (1998)

Article

Histological grading in ductal carcinomain situ of the breast

Objective: To study the significance of histological grading as a prognostic factor in ductal carcinomain situ of the breast Methods: According to the Van Nuy’s classification, 32 cases of ductal carcinomain situ

Wei-ling Xu, **ong-zeng Zhu, Ting-qiu Zhang… in Chinese Journal of Cancer Research (2000)

Article

Strong-Light Photoinhibition Treatment Accelerates the Changes of Protein Secondary Structures in Triton-Treated Photosystem I and Photosystem II Complexes

Changes in the protein secondary structure and electron transport activity of the Triton X-100-treated photosystem I (PSI) and photosystem II (PSII) complexes after strong illumination treatment were studied u...

**ang Ruan, Qiang Xu, Hai-bin Mao, Guo-fu Li, Jie Wei… in Journal of Protein Chemistry (2001)

Article

Preparation and properties of poly(dimer acid-sebacic acid) copolymer

Hui-Bi Xu, Zhi-Bin Zhou, Kai-Xun Huang, Ting Lei, Tao Zhang… in Polymer Bulletin (2001)

Article

Changes of ATP and ADP in Cultured Astrocytes Under and After in Vitro Ischemia

A very large body of evidence from in vivo studies has been accumulated on a link between the change of energy and cell survival/apoptosis. Using an in vitro ischemia model, we have previously shown that ische...

Albert Cheung Hoi Yu, Anson Ming Fung Lau, Ada Wing Yu Fu… in Neurochemical Research (2002)

Article

Photosynthesis research in the People's Republic of China¹

The first research paper on photosynthesis in China was published by T.T. Li² in 1929. Two photosynthesis laboratories were established in Shanghai and Bei**g in the 1950s and the 1960s, respectively. A photopho...

Ting-Yun Kuang, Chunhe Xu, Liang-Bi Li, Yun-Kang Shen in Photosynthesis Research (2003)

Article

Binding affinity of hydroxamate inhibitors of matrix metalloproteinase-2

Here we report molecular dynamics (MD) and free energy perturbation (FEP) simulations applied to hydroxamate-matrix metalloproteinase-2 (MMP-2) complex systems. We have developed some new force field parameter...

Wei Zhang, Ting-Jun Hou, Xue Bin Qiao, Sun Huai… in Journal of Molecular Modeling (2004)

Article

Hierarchical nanoparticle assemblies formed by decorating breath figures

The combination of two self-assembly processes on different length scales leads to the formation of hierarchically structured nanoparticle arrays. Here, the formation of spherical cavities, or 'breath figures'...

Alexander Böker, Yao Lin, Kristen Chiapperini, Reina Horowitz… in Nature Materials (2004)

Article

Influence of TAC on dispersion of aqueous nano alumina suspension

The stability of aqueous nano alumina powder suspensions with and without dispersant tri-ammonium citrate (TAC) was investigated by measuring zeta potential at different pH values. The isoelectric point (IEP) ...

Zhao Wei, Yang De-an, Song Jian-**g… in Journal of Wuhan University of Technology-… (2004)

Article

Androgen receptor regulates expression of skeletal muscle-specific proteins and muscle cell types

C₂C₁₂ myoblasts expressing the androgen receptor (AR) were used to analyze the role of androgen-AR signaling pathway in skeletal muscle development. Marked up-regulation of AR expression was observed in different...

Saleh Altuwaijri, Dong Kun Lee, Kuang-Hsiang Chuang, Huei-Ju Ting… in Endocrine (2004)

Article

Synthesis of Cordierite by decomposition of metal nitrates on the surface of carbon black powder

Cordierite precursor was obtained through a process, which involved the decomposition of metal nitrates on the surface of ultrafine carbon black powder between 100–300°C and the gasification of the carbon blac...

**e Zhi-yong, Liang Hui, Xu Ming-xia… in Journal of Wuhan University of Technology-… (2004)

Article

Design of a terrain tentative sensing machine/sensor for a mobile robot

TTSMS is a typical four-link terrain tentative sensing machine/sensor. It can sense some parameters of the front terrain for mobile robots and simply process the sensing data to obtain a simple model of the te...

Feng-bin Qiao, Ting-Kai **a, Ru-Qing Yang… in The International Journal of Advanced Manu… (2006)

Article

Numerical Simulation of Turbulent Jets with Lateral Injection into a Crossflow

In this paper, Numerical simulations of mean velocity and turbulent kinetic energy fields are presented for three-dimensional lateral jet in crossflow, at the injection angles of −60° and −30 °. The RNG k-ε turbu...

Ting-ting Guo, Shao-hua Li, Zhong Xu in Journal of Hydrodynamics (2006)

Article

FA composition of the oil extracted from farmed atlantic salmon (Salmo salar L.) viscera

The FA composition of visceral oil extracted from farmed Atlantic salmon (Salmo salar L.) viscera was studied. Seventeen FA were identified in the extracted visceral oil, and the major FA were 18∶1n9, 16∶0, 16∶1n...

Ting Sun, Zhimin Xu, Witoon Prinyawiwatkul in Journal of the American Oil Chemists' Society (2006)

Article

Distinct effects of different concentrations of sodium selenite on apoptosis, cell cycle, and gene expression profile in acute promyeloytic leukemia-derived NB4 cells

Selenium at a low concentration has a chemopreventive role against cancer, while at a high concentration, it exerts a direct antitumor effect. However, the mechanisms remain elusive. In this article, we discov...

Ting-Ming Cao, Fang-Yuan Hua, Cai-Min Xu, Bing-She Han, Hua Dong… in Annals of Hematology (2006)