氧化锌颗粒膜电阻响应-恢复特性研究

测试了氧化锌颗粒膜电阻响应-恢复特性，讨论了颗粒形态，加热电压、环境气氛、气氛浓度和注入方式等因素对电阻响应-恢复特性的影响。结果表明，随着加热电压的升高，电阻响应-恢复的速度和程度明显加大；断续注入时颗粒膜电阻值的响应随着浓度的增加逐步减弱．     

Cost effectiveness of decentralized energy supply systems taking solar and wind utilization plants into account

In this article, results are presented of annual simulations of a decentralized (regional) plant for the power and heat supply of a residential complex. This complex consists of four houses with 40 flats all in all. The annual power consumption of the complex is 157 MWh and the heat requirement is 325 MWh. The concrete dynamics of the energy demands over the year is taken into consideration. The energy supply system is composed of a power-controlled combined heat and power (CHP) plant (55 kW), a photovoltaic plant (PV array or PV plant) array for power generation as well as a field of solar thermal collectors with a short-term accumulator for water heating and a long-term accumulator for supplying heat for domestic heating purposes. Simulation results demonstrate that synergetic effects result from the combination of a CHP plant with wind power and PV plants of varying sizes, which have an effect on the cost effectiveness of the plant as a whole with the different dynamics of energy sources (wind and solar energies) and of the consumption of power and heat being the decisive factors. The power deficits of wind power and PV plants are compensated through the application of a natural gas-operated CHP plant. In almost all variants, the demand for fossil energy carriers is distinctly less than in conventional energy supply plants.     

粱南输油管线防垢技术的研究与应用

针对梁南结垢的具体情况，探讨了输油管线结硫酸盐垢的原因及影响因素，指出了化学防垢的可行性。室内成功研制出DY-2阻垢剂，现场应用后有效地预防了硫酸钡、锶垢的形成。     

油煤浆的管道输送特性与管路设计原则

通过理论分析和管道实验，探讨了油煤浆在工业管道输送中的流变特性、流动状态和阻力特性，得出了油煤浆的物性参数、表观参数、管道阻力参数的测定值和计算公式，并在此基础上探讨了油煤浆管道输送的设计原则，为油煤浆管路的设计提供基础数据、计算方法和一般原则。     

Flammability characteristics at applied heat flux levels up to 200 kW/m2

This paper documents the first of the two interrelated studies that were conducted to more fundamentally understand the scalability of flame heat flux, the motivation being that it has been reported that flame heat flux back to the burning surface in bench‐scale experiments is not the same as for large‐scale fires. The key aspect was the use of real scale applied heat flux up to 200kW/m² which is well beyond that typically considered in contemporary testing. The main conclusions are that decomposition kinetics needs to be included in the study of ignition and the energy balance for steady burning is too simplistic to represent the physics occurring. An unexpected non‐linear trend is observed in the typical plotting methods currently used in fire protection engineering for ignition and mass loss flux data for several materials tested and this non‐linearity is a true material response. Using measured temperature profiles in the condensed phase shows that viewing ignition as an inert material process is inaccurate at predicting the surface temperature at higher heat fluxes. The steady burning temperature profiles appear to be invariant with applied heat flux. This possible inaccuracy was investigated by obtaining the heat of gasification via the ‘typical technique’ using the mass loss flux data and comparing it to the commonly considered ‘fundamental’ value obtained from differential scanning calorimetry measurements. This comparison suggests that the ‘typical technique’ energy balance is too simplified to represent the physics occurring for any range of applied heat flux. Observed bubbling and melting phenomena provide a possible direction of study. Copyright © 2007 John Wiley & Sons, Ltd.     

Characteristic Investigation of Nano-Crystal Hydrogen Storage Alloys

A Ml (NiCoMnA1)5 hydrogen storage alloys was prepared by double-roller rapid quenching.Its microstructure, electrochemically and kinetic characteristic were studied.A uniform crystal phase with CaCu5 structure could be detected by XRD analyses, whose average grain size is 30 ～ 50 nm and the ratio of c/a of nano-crystal hydrogen storage alloy is larger.The hydrogen absorption/desertion p - C isotherms of alloy show that its fiat-performance is perfect and the magnetic stagnant effect is very little.An simulate cell is used for electrochemical measurement.Electrode is 10C, the capacity decreasing rate via the 450 cycles at 7C is less than 20%.     

利用Love波特性计算地基动力响应

本文利用Love波弥散特性在频域上对地基出平面振动及扭振问题进行了研究。在计算区域内结构将采用有限单元划分,而在边界上则根据Love 面波特性使用传递边界有限单元。本文同时讨论了不同模态波对结构动力响应的贡献。本文方法也适合于静力分析。     

混流,定浆式转轮特性参数的计算机处理

本文根据混流、定浆式转轮特性多数的特点建立了一种能将高维特性多数用一个具有二阶连续导数且保形的函数给予表达的方法，它的精度高，且能方便生成满足各种用途的特性曲线。     

水泵水轮机的数值模拟及其应用

采用足够小的直线段拟合机组全特性曲线平直部分，采用二次多项式拟合机组全特性曲线弯曲部分，推导了有关方程，并对模拟的方程进行了处理，编制了较通用的计算机程序，利用该计算机程序对我国蒲石河抽水蓄能电站进行了计算分析，计算结果表明：该计算机程序计算速度较快、计算准确度较高，提出的水泵水轮机的数值模拟方法具有实用价值．     

特征线法分析长距离输油管道的流动瞬变过程

本文建立了基于特征线方法求充动瞬变过程的数值模型，编制了针对长距离输油管道流动瞬变过程的分析软件。在数值处理上，Ｄａｒｃｙ＝Ｗｅｉｓｂａｃｈ摩擦力项用二阶精度格式来近似，因此保证了高粘度流体在流动瞬变过程分析时的计算稳定性和精确度。模型考虑了埋管地形对沿线瞬变压力的影响，当某一泵站发生水击后其它站的反应同其上控程序确定。应用该软件，分析模拟了某一长距离输油管道在中间泵站停电或末站瞬时关阀情况下的流