约翰逊噪声测温及相关分析

基于约翰逊噪声是电子热运动即器件电阻的本质表现法的属性，构建了不要求周期性定标的精确温度测量系统，分析了实现精确测温所遇到的理论性问题并提出了具体解决方案，同时考虑了测温法中涉及到的两个信号处理的概念，采用间接互相关分析算法论证了除噪效果的应用，给出了系统信号测量及处理的方案．     

时空守恒元和解元法在山区河流模拟中的应用

针对山区河流边界和地形复杂,水位和流速变化剧烈,主流和副流明显的特点,建立了一种新的平面二维水动力数学模型:采用一种新的数值方法——时空守恒元和解元方法(简称:CE/SE方法)并用任意四边形网格来离散区域,进行了水位和流速的数值模拟。模型利用嘉陵江草街-嘉陵江河口全长约69km的地形和实测资料进行了验证。模拟结果表明,该数学模型能够较好地模拟复杂条件下山区河流的流场特征。     

Lotus Domino系统在珠钢的应用

Domino／Notes是先进的集成的文档数据库和电子邮件系统，本文介绍了Domino／Notes应用在珠钢的详细案例。     

丰山铜矿上向分段碎石胶结充填采矿法研究与实践

介绍了上向分段碎石胶结充填采矿法在大冶有色金属公司丰山铜矿的开采试验情况.试验取得了较好的技术经济指标，其中的一些成功经验，对类似采矿技术条件的矿体开采具有一定的参考价值.     

水煤浆在电站燃油锅炉内的燃烧试验

山东白杨河电厂３号２３０ｔ／ｈ燃油锅炉是我国第一台改烧水煤浆的锅炉。为了取得水煤浆燃烧器设计的试验依据，将这台锅炉的３号角改装了水煤浆燃烧器，并分别进行了新安装的３号角水煤浆燃烧器燃油和燃水煤浆的燃烧试验，试验达到了水煤浆代油发电的目的，获得的试验数据和经验对改进这台被改造的燃油锅炉的水煤浆燃烧器的设计是非常有益的。     

脱硫型水煤浆燃烧脱硫的试验研究

水煤浆作为新型代油燃料，得到了广泛重视．为适应环境保护的要求，进行了水煤浆燃烧脱硫试验．试验在０．２５ＭＷ水煤浆燃烧试验台上进行，研究了不同ｗ（Ｃａ）／ｗ（Ｓ）值、不同温度水平以及除尘器对脱硫的影响，发现脱硫型水煤浆具有较高的脱硫率（ｗ（Ｃａ）／ｗ（Ｓ）＝１．５，脱硫率为５５％）．高于煤粉燃烧脱硫；脱硫较佳温度为１２００℃左右．试验结果表明，脱硫型水煤浆有广阔的应用前景．     

基于详细反应机理的富燃多孔燃烧制氢的计算流体力学模拟

Computational fluid dynamics （CFD） combined with detailed chemical kinetics was employed to model the filtration combustion of a mixture of methane/air in a packed bed of uniform 3 mm diameter alumina spherical particles. The standard k-ε turbulence model and a methane oxidation mechanism with 23 species and 39 elemental reactions were used. Various equivalence ratios （1.47, 1.88, 2.12 and 2.35） were studied. The numerical results showed good agreement with the experimental data. For ultra-rich mixtures, the combustion temperature exceeds the adiabatic value by hundreds of centigrade degrees. Syngas （hydrogen and carbon monoxide） can be obtained up to a mole fraction of 23%. The numerical results also showed that the combination of CFD with detailed chemical kinetics gives good performance for modeling the pseudo-homogeneous flames of methane in porous media.     

Hydrogen iodide decomposition over nickel–ceria catalysts for hydrogen production in the sulfur–iodine cycle

In this work, pure CeO₂ and three nickel–ceria catalysts prepared by different methods have been tested to evaluate their effect on hydrogen iodide (HI) decomposition in the sulfur–iodine (SI or IS) cycle at various temperatures. BET, XRD, HRTEM and TPR were performed for catalysts characterization. Indeed, the pure CeO₂ also strongly enhance the decomposition of HI to H₂ by comparison with blank yield. Nickel–ceria catalysts show better catalytic activity, especially Ni-doping-G sample. It is found that, through the sol-gel method, the Ni²⁺ ions have dissolved into the ceria lattice instead of the Ce⁴⁺ ions during the synthesis process of Ni-doping-G sample. Oxygen vacancies are formed because of the charge imbalance and lattice distortion in CeO₂. The presence of Ni during the CeO₂ synthesis process of Ni-doping-G also causes smaller average particle size, larger surface area, better thermal stability and better Ni dispersion than the Ni-loading samples. These provide nickel–ceria catalyst with a potential to be used in the SI cycle for HI decomposition.     

硫碘制氢中碘化氢分解的化学模拟及实验研究

对热化学硫碘制氢中的碘化氢分解反应进行了化学热力学、动力学模拟以及实验研究,同时利用热力学的方法研究了氢气选择性膜对碘化氢分解率的影响.化学热力学模拟中,500℃下,HI的分解率只达到22.8%.但利用膜分离只移走氢气和同时移走氢气和碘蒸气的情况下,分解率分别增长了30.3%和54.8%.化学动力学模拟中,随温度的升高,Ⅷ浓度降低曲线呈现一定的线形规律,该分解反应对温度的敏感性较高.通过实验结果和动力学模拟结果的对比,该动力学模型能较好地描述HI分解的化学反应历程.