混凝土质量的计算机辅助管理及应用

介绍了混凝土质量的计算机辅助管理系统的程序设计思想及程序功能．利用系统进行质量管理图控制线的计算，并绘制质量管理图进行混凝土质量的管理，从而控制混凝土的生产，保证质量和节约水泥，为广大从事混凝土生产的工程技术人员提供了有效的辅助工具．     

神经网络用于热固性酚醛树脂的研究

运用人工神经网络研究了热固性酚醛树脂的合成反应空间与产物空间的映射关系，建立了可用于定量预测树脂固化产物热性能的模型，并进行了实验验证，神经网络方法对于复杂高分子体系的合成－性能定量关系的研究显示出良好的应用前景。     

基于Haar函数的分布参数系统辨识

借助于正交函数序列对分布参数系统进行辨识，是一种妊之有效的辨识方法。     

Minimum QOS Parameter Set in Transport Layer

QOS（Quality Of Service)parameter definitions are the basis of further QOS control.But QOS parameters defined by organizations such as ISO and ITU are incoherent and incompatible.It leads to the imefficiency of QOS controls.Based on the analysis of QOS parameters defined by ISO and ITU,this paper first promotes Minimum QOS Parameter Set in transport layer.It demonstrates that the parameters defined by ISO and ITU can be represented b parameters or a combination of parameters of the Set.The paper also expounds that the Set is open and manageable and it can be the potential unified base for QOS parameters.     

Wavelength-swept fiber laser with frequency shifted feedback andresonantly swept intra-cavity acoustooptic tunable filter

This paper concerns a wavelength-swept fiber laser (WSFL) incorporating frequency shifted feedback and an intracavity passband filter, in which the wavelength of the modeless output is linearly, continuously and repeatedly tuned (in time) over a given range by modulation of the filter peak wavelength and filter strength. We show both numerically and experimentally that amplifier noise plays a key role in determining the operation of frequency-shifted fiber laser systems and that a “noisy” amplifier can be used to suppress the natural tendency of such lasers to pulse, allowing for continuous wave, modeless operation. Furthermore, we show that significant narrowing of a WSFL instantaneous swept linewidth can be obtained if the filter peak transmission wavelength is resonantly swept so as to follow the wavelength shift per pass due to the acoustooptic frequency shift. Using these ideas we go on to demonstrate and characterize a high-power diode-driven Er³⁺/Yb³⁺ WSFL incorporating a bulk-optic acoustooptic tunable filter (AOTF). Linewidths as narrow as 9 GHz, sweep ranges up to 38 nm and output powers as high as 100 mW are obtained. Furthermore, we demonstrate the generation of user definable average spectral output by synchronous modulation of the filter strength and multiwavelength pulsed output at higher sweep rates. Excellent agreement between the experimental results and those of the numerical modeling is obtained. Our simulations show that reduced linewidth (<0.02 nm) and improved scan linearity should be readily achievable with realistic system improvements. We believe such sources to be of considerable physical and practical interest, with applications ranging from sensor array monitoring and device characterization through to low-coherence interferometry     

超临界CO2萃取小麦胚芽油的研究

用超临界ＣＯ２萃取小麦胚芽油，较一般压榨法及有机溶剂萃取法得到的油品质好，出油率高，且无毒无副作用，经试验研究得到了压力，时间、温度、ＣＯ２流量及物料水分含量等萃取操作的最佳条件，萃取率可达８５％以上，为进一步的奠定了基础。     

可持续发展与环境保护对策

可持续发展战略已被纳入我国“九五”计划和２０１０年的中长期国民经济和社会发展计划，而保护环境是可持续发展战略最主要的前提和保障。本文介绍了世界环境问题出现的历史、可持续发展的提出及内涵，概述了发展与环境的辩证关系，结合我国可持续发展面临的严峻环境保护形势，提出环境保护的对策。     

The electronic structure and grain boundary segregation by boron addition

The electronic structure and grain boundary segregation caused by boron addition to Ni₃Al have been studied by X-ray photoelectron spectroscopy and Auger electron spectroscopy, respectively. The obtained results show that the Ni2p_3/2 electron binding energy rises gradually in the sequence of pure Ni<Ni₇₆Al₂₄<Ni₇₄Al₂₆<Ni₇₅Al₂₅, while it reduces monotonously with an increase in boron addition to Ni₃Al. Besides, it is found that the grain boundary segregation of boron occurring in Ni₃Al is a combined equilibrium and non-equilibrium type in nature. Based on the concept of the bonding environmental inhomogeneity, measured by the shift in Ni2p_3/2 electron binding energy from the nickel atoms in the simple substance nickel to those in the intermetallic compound Ni₃Al (ΔE _B), being responsible for the brittle behavior of the alloy, a binding energy shifting criterion for the brittle-ductile fracture transition in Ni₃Al is presented; when ΔE _B>0, the brittle failure occurs in Ni₃Al; when δE _B<0, the ductile one appears. Combined with the above experimental rules, the criterion predicts that pure Ni₃Al is brittle, and there exist the stoichiometric effect and concentration effect in the ductilization process for Ni₃Al by boron addition. Hence the criterion can be taken as a theoretical guide to alloy design in developing ductile intermetallics. Project supported by the National Natural Science Foundation of China.     

葫芦岛蒙脱土的特征与催化活性

研究了葫芦岛蒙脱土的某些特征与催化活性。该蒙脱石的离子交换能力与层间距分别是７５ｍｅｑ／１００ｇ和１．５２９ｎｍ，对偏三甲苯的歧化、异构化以及偏四甲苯的脱甲基、异构化都具有催化活性。这些数据表明葫芦岛蒙脱土是一种有用的催化材料。     

海水铝-空气燃料电池

叙述了海水－铝空气燃料电池的特性及影响电池功率输出的主要因素，如海水的电导、盐度、温度、铝材料的选择等。试验结果表明，电池工作时正负极之间的液相电阻比海水本身的电阻小得多，但是其液相电阻仍然偏大。海水盐度和温度的变化引起电极电势波动，盐度影响占１０％左右。高纯铝合金电极工作电势比工业铝合金电极的工作电势高２００ｍＶ以上。