A Study on the Assessment of Sensitivity to Acidification of Waters by Acidification Capacity

ＡＳｔｕｄｙｏｎｔｈｅＡｓｓｅｓｓｍｅｎｔｏｆＳｅｎｓｉｔｉｖｉｔｙｔｏＡｃｉｄｉｆｉｃａｔｉｏｎｏｆＷａｔｅｒｓｂｙＡｃｉｄｉｆｉｃａｔｉｏｎＣａｐａｃｉｔｙＭＥＮＧＸｉａｎｌｉｎ；ＺＨＯＵＤｉｎｇ；ＸＵＥＨａｎｂｉｎ（孟宪林）；（周定）；（薛含斌...     

Theoretical Analysis of the Effect of Mediator on the Reaction of the Enzyme Electrode

ＴｈｅｏｒｅｔｉｃａｌＡｎａｌｙｓｉｓｏｆｔｈｅＥｆｆｅｃｔｏｆＭｅｄｉａｔｏｒｏｎｔｈｅＲｅａｃｔｉｏｎｏｆｔｈｅＥｎｚｙｍｅＥｌｅｃｔｒｏｄｅＺＨＯＵＤｉｎｇ；ＹＵＸｉｕｊｕａｎ（周定，于秀娟）（Ｄｅｐｔ．ｏｆＡｐｐｌｉｅｄＣｈｅｍｉｓｔｒｙ，Ｈ...     

A Study on the Moving Accuracy of the Slide in the Press

ＡＳｔｕｄｙｏｎｔｈｅＭｏｖｉｎｇＡｃｃｕｒａｃｙｏｆｔｈｅＳｌｉｄｅｉｎｔｈｅＰｒｅｓｓ￥（陈维民）（曹喜滨）（刘刚）（高乃光）ＣＨＥＮＷｅｉｍｉｎ；ＣＡＯＸｉｂｉｎ；ＬＩＵＧａｎｇ；ＧＡＯＮａｉｇｕａｎｇ（Ｄｅｐｔ．ｏｆＭａｔｅｒｉａｌＳｃｉｅｎ...     

Study of the Characteristics of Piezoelectric Elements

ＳｔｕｄｙｏｆｔｈｅＣｈａｒａｃｔｅｒｉｓｔｉｃｓｏｆＰｉｅｚｏｅｌｅｃｔｒｉｃ　ＥｌｅｍｅｎｔｓＳＵＮＬｉｎｉｎｇ；ＡＮＨｕｉ；ＣＡＩＨｅｇａｏ（孙立宁，安辉，蔡鹤皋）（ＲｏｂｏｔＲｅｓｅａｒｃｈｉｎｓｔｉｔｕｔｅ，Ｈａｒｂｉｎｉｎｓｔｉｔｕｔｅｏ...     

The Finite Element Analysis and Computer Simulation of the Composite Case

ＴｈｅＦｉｎｉｔｅＥｌｅｍｅｎｔＡｎａｌｙｓｉｓａｎｄＣｏｍｐｕｔｅｒＳｉｍｕｌａｔｉｏｎｏｆｔｈｅＣｏｍｐｏｓｉｔｅＣａｓｅＤＵＡＮＤｅｎｇｐｉｎｇ；ＤＵＳｈａｎｙｉ（段登平）；（杜善义）（Ｄｃｐｔ．ｏｆＡｓｔｒｏｎａｕｔｉｃｓａｎｄＭｅｃｈａｎｉ...     

Research of the Data Processing Method in Two-Axis Servo Drift Testing

ＲｅｓｅａｒｃｈｏｆｔｈｅＤａｔａＰｒｏｃｅｓｓｉｎｇＭｅｔｈｏｄｉｎＴｗｏ－ＡｘｉｓＳｅｒｖｏＤｒｉｆｔＴｅｓｔｉｎｇＧＵＯＳｕｙｕｎ；ＴＩＡＮＺｉｙｕｎ；ＬＩＤｏｎｇｌｉｎ；ＺＨＡＮＧＨｏｎｇｗｅｉ（郭素云）；（田自耘）；（李东林）；（张宏伟）（...     

Analysis of Improvement in the Stiffness of Externally Pressurized Gas Thrust Bearing

ＡｎａｌｙｓｉｓｏｆＩｍｐｒｏｖｅｍｅｎｔｉｎｔｈｅＳｔｉｆｆｎｅｓｓｏｆＥｘｔｅｒｎａｌｌｙＰｒｅｓｓｕｒｉｚｅｄＧａｓＴｈｒｕｓｔＢｅａｒｉｎｇＱＩＮａｉｍｉｎｇ；ＬＩＵＤｕｎ；ＷＡＮＧＨｏｎｇｊｉｅ（齐乃明，刘暾，王洪杰）（Ｄｅｐｔ．ｏｆＡｓｔ...     

Synchronization Control of the Oppositely Driven System with Dual Asymmetric Cylinders

ＳｙｎｃｈｒｏｎｉｚａｔｉｏｎＣｏｎｔｒｏｌｏｆｔｈｅＯｐｐｏｓｉｔｅｌｙＤｒｉｖｅｎＳｙｓｔｅｍｗｉｔｈＤｕａｌＡｓｙｍｍｅｔｒｉｃＣｙｌｉｎｄｅｒｓＷＡＮＧＸｕａｎｙｉｎ；ＬＩＵＱｉｎｇｈｅ；ＷＵＳｈｅｎｇｌｉｎ（王宣银，刘庆和，吴盛林）（Ｄｅｐ...     

A Researchon the Problems Encountered in the Design of Hypertext Navigation Graph

ＡＲｅｓｅａｒｃｈｏｎｔｈｅＰｒｏｂｌｅｍｓＥｎｃｏｕｎｔｅｒｅｄｉｎｔｈｅＤｅｓｉｇｎｏｆＨｙｐｅｒｔｅｘｔＮａｖｉｇａｔｉｏｎＧｒａｐｈＬＩＵＸｉａｏｄｏｎｇ；ＬＩＬｉａｎｚｈｉ；ＷＡＮＧＹａｎ（刘晓冬，李莲治，王岩）（Ｄｅｐｔ．ｏｆＣｏｍｐｕｔ...     

Monitoring of Grinding Process with Acoustic Emission Signals

ＭｏｎｉｔｏｒｉｎｇｏｆＧｒｉｎｄｉｎｇＰｒｏｃｅｓｓｗｉｔｈＡｃｏｕｓｔｉｃＥｍｉｓｓｉｏｎＳｉｇｎａｌｓ￥（穆玉海）（杨青）（姚英学）（袁哲俊）ＭＵＹｕｈａｉ；ＹＡＮＧＱｉｎｇ；ＹＡＯＹｉｎｇｘｕｅ；ＹＵＡＮＺｈｅｊｕｎ（Ｄｃｐｔ．ｏｆＭｅｃｈａ...     

相对折射率对于颗粒尺寸测量结果的影响分析

根据Mie光散射理论,如果颗粒的尺寸(或分布)保持不变,那么由颗粒的不同相对折射率就可以得到不同的散射光能量分布。因此,颗粒尺寸测量仪的测量结果将受到被测颗粒的相对折射率的影响。本文将从理论计算和实验结果两个方面来分析被测颗粒的相对折射率对测量结果的影响。     

Study on optical constants inversion and infrared transmission characteristics of aerosol particles

Based on the experimental infrared spectral transmittances,an inverse model has been developed to determine the optical constants of the aerosol particles (SiO2 and Al2O3).Combined with the Mie theory and Kramers-Kronig (K-K) relations,the complex refractive indices of the SiO2 and Al2O3 particles are retrieved.The effects of the measurement errors on the inverse results are also investigated.With the optical constants inversed from the experiment,the discrete ordinate method (DOM) is used to calculate the infrared transmission characteristics of the aerosol particle cloud.Considering the multi-scattering and self-emission of the particles,the equivalent transmittance ratio (ETR) is suggested to evaluate the infrared transmission characteristics of the aerosol particles.Particular attention is given to analyze the effects of the volume fraction and diameters on infrared transmission characteristics.When the volume fraction is larger than 0.001,the particle diameter has little effect on the infrared transmission characteristics.For the uniform monodisperse particles in the detection waveband range of 3-5 μm and 8-12 μm,there exists a critical diameter where the ETR reaches the minimum value.In addition,the ETR of 3-5 μm is smaller than that of 8-12 μm with the same volume fraction and particle diameter.     

含各向异性散射粒子的平板状半透明介质层发射特性

用蒙特卡罗（Monte－Carlo）法研究了含粒子平板状半透明等温介质层的发射特性．在辐射能传递的模拟计算中,考虑了半透明表面的折射和镜反射作用及稀相粒子系的各向异性散射效应．给出了介质层温度、介质折射率和粒子直径不同时的介质层半球发射率和方向发射率分布,并通过分析粒子直径和介质折射率对粒子系衰减系数及反照率的影响解释了介质层半球和方向发射率随粒子直径和介质折射率的变化规律．     

含铅高折射率光学塑料的研究

用氧化铅和α-甲基丙烯酸制备α-甲基丙烯酸铅,并以不同的摩尔比例与甲基丙烯酸甲酯、苯乙烯共聚.研究结果表明:这种光学塑料的透过率≥88%,折射率≥1.61,热膨胀系数≤7.1×10-5K-1,吸水率≤0.4%,而且随着α-甲基丙烯酸铅含量的增加折射率明显增大,但透过率和阿贝数有小幅下降.     

氨对二次有机气溶胶光学特性的影响

开展一系列甲苯/NO_x光氧化烟雾箱模拟实验,研究大气环境中氨对二次有机气溶胶（SOA）光学特性的影响. 采用特氟龙膜作为烟雾箱的反应腔材料,实验过程中同时检测颗粒的粒径分布、光学参数和质谱信息. 讨论不同氨体积分数对甲苯光氧化生成SOA的消光截面、复折射率及粒径等参数的变化特征. 研究发现,上述实验中SOA的消光作用均以散射为主;随着粒径的增大,消光截面呈指数增大,复折射率则先增大后减小. 与低湿无氨环境相比,增湿或加氨均导致SOA中元素O和C物质的量之比增大、复折射率增大;高湿加氨条件下,SOA的粒径明显减小、颗粒数密度急剧增大、SOA中元素O和C的物质的量之比、元素N和C的物质的量之比均增大.     

Shell煤气化飞灰粘附特性影响因素探讨

针对Shell粉煤气化炉飞灰的粘附特性,利用XRF、激光粒度分析仪、SEM-EDX等仪器对采自皖北、云南矿区的两种煤在Shell气化过程中形成的飞灰样品进行了分析检测,探讨了化学成分、粒度分布、表面形貌及元素组成等因素对飞灰粘附特性的影响。结果表明,皖北煤飞灰中一些微量元素含量比云南煤飞灰含量高,颗粒直径在1-2μm范围的大颗粒数明显少于云南煤飞灰,但是飞灰的比表面积大于云南煤飞灰,这是皖北煤飞灰的粘附性比云南煤要高的主要原因;此外,飞灰颗粒为球状,表面附着小的球形颗粒,该颗粒的Ca元素含量较高,使得它们彼此容易粘连在一起,从而促进了飞灰的粘附和沉积。     

基于椭偏法的烟尘粒子复折射率测量

粒子复折射率是计算粒子光散射特性的重要参数.传统的KBr样片透射测量粒子复折射率的方法过程复杂,对颗粒物粒径要求满足Mie散射条件.提出了基于椭偏法的烟尘粒子复折射率测量方法,推导了椭偏法测量复折射率的理论公式,将现场采集的烟尘粒子制备成以玻璃为基底的烟尘粒子薄膜,搭建了基于椭偏法的烟尘粒子复折射率测量实验装置,获得了烟尘粒子多光谱复折射率.实验结果表明,与KBr样片透射法的测量结果吻合较好,这为其颗粒物复折射率的测量提供了新的途径.     

单轴晶体薄膜的光学隧道效益(英文)

本文提出一种研究晶体薄膜光学隧道效应的方法，计算在最一般情况下晶体中急逝波的复射率和复折射角，讨论了隧道效应时晶体薄膜的反射率和透射率，以及这些系数与薄膜光学参量的关系，以上结果提供了用光学隧道效应检测晶体薄膜的理论。     

Application of polymeric flocculant for enhancing settling of the pond ash particles and water drainage from hydraulically stowed pond ash

Delayed settling of the ash particles and poor drainage of water from the pond ash are the major problems faced during the hydraulic stowing of pond ash. In this study the effect of polymeric flocculant on settling of the ash particles and drainage of water during pond ash stowing are investigated. In addition, the parameters, viz. drainage and absorption of water during pond ash stowing are quantified by stowing a mine goaf model with pond ash slurries of five different concentrations added with and without flocculant. The study revealed that addition of only 5 × 10^?6 of Sodium Carboxymethyl Cellulose (Na-CMC) flocculant with the pond ash slurries during stowing offers best result in terms of quicker settling of the ash particles and enhanced water drainage from the hydraulically stowed pond ash. Besides, it resulted in drainage of more than 85% of the total water used in the initial 45 min of stowing. The improvement in drainage is caused due to coagulation and flocculation of the pond ash particles because of charge neutralization and particle–particle bridging. This study may provide a basis for estimating the drainage and absorption of water during the real pond ash stowing operation in underground mines.     

Design and calculation of low infrared transmittance and low emissivity coatings for heat radiative applications

The infrared transmittance and emissivity of heat-insulating coatings pigmented with various structural particles were studied using Kubelka-Munk theory and Mie theory. The primary design purpose was to obtain the low transmittance and low emissivity coatings to reduce the heat transfer by thermal radiation for high-temperature applications. In the case of silica coating layers constituted with various structural titania particles (solid, hollow, and core-shell spherical), the dependence of transmittance and emissivity of the coating layer on the particle structure and the layer thickness was investigated and optimized. The results indicate that the coating pigmented with core-shell titania particles exhibits a lower infrared transmittance and a lower emissivity value than that with other structural particles and is suitable to radiative heat-insulating applications.