土木工程专业课程体系建设及其学生适应性探讨

根据国家教育部1998年下达的新专业目录，结合广西建筑与交通土建行业的发展需要，对新的土木工程专业的培养目标和课程体系设置进行探讨，并就学生的学习适应性和社会适应性进行分析，进而提出一些对策．     

纳米材料的特异效应及其应用

纳米材料是一类具有重要理论价值和广阔应用前景的新型功能材料,被誉为21世纪最有前途的材料.本文阐述了这类材料的基本结构、特异效应、应用现状以及目前的研究进展.     

关于复杂现象的起源,描述和演化过程的哲学思考

复杂性起源于不同事物间的相互作用，并随着相互作用单元数目的增加而增加。对复杂系统行为的唯象描述可通过相互作用的微观分析与系统论思想方法的综合运用来进行。以能量耗散为基础的“活性”复杂系统，其演化过程是由多重态的产生机制与定态选择机制的协同耦合关系所决定的。     

Hydrogen Adsorption on Metal-Organic Framework MOF-177

This review summarizes the recent literature on the synthesis, characterization, and adsorption properties of meal-organic framework MOF-177. MOF-177 is a porous crystalline material that consists of Zn4O tetrahedrons connected with benzene tribenzoate (BTB) ligands. It is an ideal adsorbent with an exceptionally high specific surface area (BET4500 m2/g), a uniform micropore size distribution with a median pore diameter of 12.7 ?, a large pore volume (2.65 cm3/g), and very promising adsorption properties for hydrogen storage and other gas separation and purification applications. A hydrogen adsorption amount of 19.6 wt.% on MOF-177 at 77 K and 100 bar was observed, and a CO2 uptake of 35 mmol/g on MOF-177 was measured at 45 bar and an ambient temperature. Other hydrogen properties (kinetics and heat of adsorption) along with adsorption of other gases including CO2, CO, CH4, and N2O on MOF-177 were also be discussed. It was observed in experiments that MOF-177 adsorbent tends to degrade or decompose when it is exposed to moisture. Thermogravimetric analysis showed that the structure of MOF-177 remains intact at temperatures below 330℃ under a flow of oxygen, but decomposes to zinc oxide at 420℃.     

研究生心理压力应对策略

本文分析了研究生心理压力的现状,提出从自我调整和学校社会外部支持两方面进行应对研究生心理压力的策略,从而为提高研究生的心理健康水平起到一定积极作用。     

一类具有随机反射边界的随机微分方程(Ⅰ)

在一般的条件下 ,得到一类具有反射边界的随机微分方程解的存在性和唯一性结果 ,该类方程的反射边界是随机的而且是随时间而变化的 ,并讨论了该解的连续性估计问题 .     

钢和泰的"一稿两用"

文章根据钢和泰生前有关来往信件,就其所谓"一稿两用"事件作一简述,藉此我们可以从钢和泰对事件处理的全过程中学习某些有益的东西。     

锦屏一级电站工程对鸟兽的影响预测

研究了锦屏一级电站在施工期，竣工蓄水后，水库水位消涨期对鸟兽的影响及应采取的对策。     

平纹地小提花CAD

介绍了平纹地小提花织物的计算机辅助设计方法，该方法可大大减少设计人员的工作量，提高设计效率。     

Characterization of Anabaena cylindrica Solution System Using Synchronous-Scan Fluorescence Spectroscopy

The characterization of the algaeAnabaena cylindrica solution with Fe (III) was investigated using fluorescence emission and synchronous-scan spectroscopy. The ranges of concentrations of algae and Fe (III) in aqueous solutions were 5.0×10⁸ 2.5×10⁸ cell/L and 1060 μmol/L. respectively. The effective characterization method used was synchronous-scan fluorescence spectroscopy (SFS). The wavelength difference (Δλ) of 90 nm, was maintained between excitation wavelength (λen) and emission wavelength (λen). The peak was observed at about (λex) (λem) 326 nm for synchronous scan fluorescence spectroscopy. The fluorescence quenching in system of algae Fe(III)-HA was studied using synchronous-scan spectroscopy for the first time, Fe(III) was clearly the effective quencher. The relationship betweenI I (quenching efficiency) andc (concentration of Fe (III) added) was, a linear correlation for the algae solution with Fe(III). Also, Aldrich humie acid (HA) was found to be an effective quencher. Foundation item: Supported by the National Natural Science Foundation of China (20177017) and the Scientific Research Foundation of Wuhan Environmental Protection Bureau Biography: LIU Xian li(1965), male. Ph.D. Associate professor, research direction: environmental chemistry.