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听力学及言语疾病杂志 2024年第2期32卷 185-186页

作者：刘汉玮(摘译) 时海波(审校) Gong LN Lai K 上海交通大学医学院附属第六人民医院耳鼻咽喉头颈外科上海200233

缺血性脑损伤是导致成人死亡和残疾的主要原因之一,既往研究的主流观点认为:缺血性脑损伤致死致残的原因主要与NMDA(N-methyl-D-aspartic acid)受体过度激活有关,即缺血时会引起谷氨酸大量释放,激活NMDA受体,从而介导Ca2+过量流入胞内,... 详细信息

缺血性脑损伤是导致成人死亡和残疾的主要原因之一,既往研究的主流观点认为:缺血性脑损伤致死致残的原因主要与NMDA(N-methyl-D-aspartic acid)受体过度激活有关,即缺血时会引起谷氨酸大量释放,激活NMDA受体,从而介导Ca2+过量流入胞内,触发下游Ca2+依赖性的细胞死亡信号级联反应;这一系列级联反应进一步引起了一些非选择性阳离子通道的开放,如酸敏感离子通道(ASICs)和瞬时受体电位M型离子通道(TRPM)等,最终共同导致了不可逆性的脑组织损伤。

关键词：缺血性脑损伤脑组织损伤非选择性阳离子通道 NMDA受体不可逆性胆红素激动剂细胞死亡

A Linear Programming Model for Seabed Oil-Gas Pipe Network

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China Ocean Engineering 1998年第4期13卷 477-482页

作者： Li, hw Tan, JH Shanghai Jiao Tong Univ Sch Naval Architecture & Ocean Engn Shanghai 200030 Peoples R China

This paper analyzes the pipe network system of oil-gas collection and transportation for offshore oilfield development. A '0-1' integer linear programming model is constructed to optimize the investment of seabed pipe network. The mathematical model is solved by the spanning tree method of graph theory and network analysis. All spanning trees of a network graph compose all the feasible solutions of the mathematical model. The optimal solution of the model is the spanning tree with the minimum cost among all spanning trees. This method can be used to optimize the seabed pipe network system and give a minimum cost plan for the development of offshore marginal oilfield groups.

关键词： seabed pipe network offshore oilfield linear programming network analysis

Exact number of chord diagrams and an estimation of the number of spine diagrams of order n

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Chinese Science Bulletin 1997年第9期42卷 705-718页

作者： Li, BH Sun, hw Institute of Systems Science Chinese Academy of Sciences Beijing China

The main results are as follows:( i ) For the number of chord diagrams of order n, an exact formula is given.( ii ) For the number of spine diagrams of order n, the upper and lower bounds are obtained. These bounds show that the estimation is asymptotically the *** a byproduct, an upper bound is obtained, for the dimension of Vassiliev knot invariants of order n, that is, 1/2 ( n -1)! for any n≥3, and 1/2( n - 1)! - 1/2( n - 2)! for bigger n . Our upper bound is based on the work of Chmutov and Duzhin and is an improvement of their bound ( n - 1)! . For n = 3, and 4,1/2( n - 1)! is already the best.

关键词： knot Vassiliev invariant chord diagram spine diagram combinatorics.

Stochastic simulation of chemical chaos

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Chinese Science Bulletin 1997年第1期42卷 47-50页

作者： Wang, HL Xin, hw UNIV SCI & TECHNOL CHINA DEPT CHEM PHYSHEFEI 230026PEOPLES R CHINA

A chemical reaction is often described by a set of ordinary differential equations based on the mass action law of chemical kinetics. From the microscopic point of view, these macroscopic rate equations originated in the microscopic elastic and reactive collision processes, and a full description of a chemical reaction includes the mean molecular numbers (or concentrations) of reacting species and the fluctuations around these mean values. In normal cases, concentra-

关键词： chaos stochastic simulation nonequilibrium.

LASER INDUCED FLUORESCENCE DETECTOR(LIF)FOR CAPILLARY ELECTROPHORESIS

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Chinese Chemical Letters 1996年第1期7卷 39-42页

作者： Ma, MS Han, hw Liu, GQ ACAD SINICA INST CHEMBEIJING 100080PEOPLES R CHINA

A highly sensitive laser induced fluorescence detector for capillary electrophoresis is described. With an argon laser at 488 nm for excitation, the emitted light was collected by an optical fiber and measured by it PMT. Various elements that affected the sensitivity of the detector were discussed in detail. The detection limit for fluorescein was 5.4 amole.

关键词： ZONE ELECTROPHORESIS AMINO-ACIDS DERIVATIVES SEPARATION FRAGMENTS

The PVT Properties Calculation of Water by BWR Equation

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Chinese Chemical Letters 2001年第10期12卷 917-920页

作者： Wang, SG Han, BX Xiang, hw Chinese Acad Sci Inst Chem Ctr Mol Sci Beijing 100080 Peoples R China

A series of thermodynamic functions are applied to generalize the Benedict-Webb-Rubin equation. The method has been successfully applied to this equation, which reduced the constants of BWR equation from eight to one. The calculation of PVT behavior of water over the entire thermodynamic surface is successful with satisfactory deviation.

关键词： Benedict-Webb-Rubin Equation of state thermodynamic properties water

STUDIES ON THE SYNTHESIS OF NOVEL ISONUCLEOSIDE FROM D-GLUCOSE

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Chinese Chemical Letters 1995年第8期6卷 655-656页

作者： Yu, hw Ma, LT Zhang, LH Beijing Med Univ Sch Pharmaceut Sci Beijing 100083 Peoples R China

A novel isonucleoside, 2,5-anhydro-4-(adenine-9-yl-)-L-iditol was synthesized from D-glucose through 9 steps.

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Sishengtang decoction in alleviation of toxic and side effects of transarterial embolization

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World Journal of Gastroenterology 1998年第2期4卷 79-81页

作者： Chen, Z Ling, CQ Huang, XQ Zhang, hw Second Mil Med Univ Changhai Hosp Dept Tradit Chinese Med Shanghai 200433 Peoples R China

AIM To observe the therapeutic effects of Sishengtang decoction in alleviating the toxic and side effects of transarterial embolization (TAE). METHODS Fifty four patients with liver cancer were divided randomly into Sishengtang decoction group (34 cases) and control group (20 cases). The changes of clinical symptoms and peripheral hemogram and some cellular immune functions were observed before and two weeks after TAE. RESULTS Sishengtang decoction was superior to the control group in improving the digestive tract reaction. The leucocytes of peripheral blood and cellular immune functions (activities of NK cells and LAK cells) of control group decreased obviously after TAE, while that of Sishengtang decoction group decreased slightly, without obvious difference as compared with that of preoperation. CONCLUSIONS Sishengtang decoction might improve the clinical symptoms and increase the leucocytes of peripheral blood and the cellular immune functions of TAE patients.

关键词： Sishengtang decoction liver neoplasms/therapy embolization, therapeutic immunity , cellular killer cell, natural killer cell , lymphokine activated leucocytes

PERFORMANCE OF PULVERIZED SLAG SUBSTITUTED CEMENT

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Journal of Wuhan University of Technology(Materials Science) 1999年第1期14卷 30-34页

作者： Wan, hw Zhang, QA Fu, HP Yu, CL Wuhan Univ Technol Coll Mat & Engn Wuhan 430070 Peoples R China Wuhan Iron & Steel Co Wuhan Peoples R China

The Portland cement is equivalently substituted by slag micropowders with various specific areas. The workability, activity and acid-corrosion resistance of the slag-substituted cements are investigated, the activation of gypsum is discussed also the porosity and pore distribution of mortars of the slag micropowders cement are determined by mercury intrusion porosimetry.

关键词： slag micropowders mortar porosity pore distribution