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The Mechanisms of Brassinosteroids＇ Action： From Signal Transduction to Plant Development

Molecular Plant 2011年第4期4卷 588-600页

作者： Cang-Jin Yang Chi Zhang Yang-Ning Lu Jia-Qi Jin Xue-Lu Wang State Key Laboratory of Genetic Engineering and Institute of Plant Biology School of Life Sciences Fudan University Shanghai 200433 People's Republic of China

Brassinosteroids play diverse roles in plant growth and development. Plants deficient in brassinosteroid （BR） biosynthesis or defective in signal transduction show many abnormal developmental phenotypes, indicating the importance of both BR biosynthesis and the signaling pathway in regulating these biological processes. Recently, using genetics, proteomics, genomics, cell biology, and many other approaches, more components involved in the BR signaling pathway were identified. Furthermore, the physiological, cellular, and molecular mechanisms by which BRs regulate various aspects of plant development, are being discovered. These include root development, anther and pollen development and formation, stem elongation, vasculature differentiation, and cellulose biosynthesis, suggesting that the biological functions of BRs are far beyond promoting cell elongation, This review will focus on the up-to-date progresses about regulatory mechanisms of the BR signaling pathway and the physiological and molecular mechanisms whereby BRs regulate plant growth and development.

关键词： Arabidopsis brassinosteroid cross-talk phosphorylation plant development signaling pathway stresses.

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3-DIMENSIONAL ANALYSIS OF COMPOSITE RESIDUAL stresses.DUE TO TWISTED FIBER BUNDLES

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Science China Mathematics 1991年第4期34卷 467-478页

作者：姚立宁邹祖炜 Wuhan University of Hydraulic and Electric Engineering Wuhan 430072 PRC Center for Composite Materials and Department of Mechanical Engineering University of Delaware Newark DE 19716 USA

This paper presents an analytical study of the thermal residual stresses.due to curing incomposites containing twisted fiber bundles. The fibers in a bundle assume the helical *** 3-dimensional elasticity problem is formulated and solved based upon the principle ofminimum potential energy. The resulting thermal stress field is examined as functions offiber/matrix material properties and fiber bundle geometry. Significant radial stresses.onthe fiber and circumferential stresses.in the matrix have been identified at the fiber bundle/matrix interface. The analytical result also reveals that twisting of the fiber bundle tendsto reduce the residual stresses.due to the fiber matrix differential thermal expansion.

关键词： twisted fiber bundle fiber/matrix interface energy principle residual stresses.

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Thermal stress calculation formulas for injected plastics during cooling process

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Chinese Science Bulletin 1995年第15期40卷 1309-1313页

作者：卢义强陈兴李德群李志刚肖景容 State Key Laboratory of Die Mold Technology Huazhong University of Science and Technology Wuhan 430074 China

Warpage of injected parts is one of the most difficult problems which often troublesengineers. Because all factors, including process condition, mold structure and materialproperty, have influences on Warpage, it is difficult to control the warpage of big parts bydrawing on experience. To ensure the quality of percision of injected parts, simulating injection process and predicting warpage is an effective method.

关键词： injection molding viscoelasticity thermal stresses.

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