掺杂WRe3、WRe25合金的高温电阻－温度特性

本文报导了采用一种新型高温陶瓷发热体高温管状炉，通以氩气保护，测量ＷＲｅ合金丝的电阻－温度（１６００℃）特性试验方法，该方法较真空炉简便、实用且试验费用低而准确，测量数据与美国研究报导一致。     

碳化硅加热元件的电性能和使用

本文介绍碳化硅加热元件的电特性、表面负荷以及工作气氛对它的影响，并对它设计和使用要点举例予以说明。     

天然调味料──酵母抽提物的研究进展

着重论述了酵母抽提物的特性、在食品中的应用前景、制造方法、工业化生产中存在的问题及其解决方法，并对酵母抽提物的发展方向作一展望。     

Health and Indoor Climate Complaints of 7043 office Workers in 61 Buildings in the Netherlands

During the winter of 1988/1989, the relationships between the prevalence of work-related health and indoor climate complaints and a number of building, management, workplace and personal characteristics have been investigated in a study in more than 60 office buildings located throughout the Netherlands. To collect the information, a questionnaire was prepared on health and indoor climate complaints and personal and workplace characteristics. A checklist was used to obtain information on building characteristics More than 7000 questionnaires were completed by the regular users of the buildings investigated. The results showed that the prevalence of symptoms was higher in air-conditioned buildings than in naturally or mechanically ventilated buildings. some other variables were also related with most work-related complaints after adjustment for selected management, personal, workplace and job characteristics. These included gender, work satisfaction in general, presence of allergies and/or respiratory symptoms, and personal control over temperature at the workplace. No differences were found in symptom prevalences between buildings with spray and steam humidification. The combination of air-conditioning and humidification did not lead to further increases in the prevalence of complaints as compared to buildings with only airconditioning or only humidification.     

PVInSb红外探测器的阻抗——频率特性分析

通过理论计算和实际测试，给出了ＰＶＩｎＳｂ红外探测器的低频阻抗－频率特性曲线，结合检测阻抗／动态电阻的方法和阻抗－频率特性曲线的变化规律，分析讨论了ＰＶＩｎＳｂ红外探测器的阻抗与动态电阻的异同，从而说明在涉及ＰＶＩｎＳｂ红外探测器的阻抗／动态电阻时，即使在低频范围也要具体考虑频率因素的影响。     

调节对象参数和运动特性随工况变化的分析

水轮机调节对象的许多参数都是随运行工况变化的。以调节对象线性化模型为基础，从1个实例计算人手，计算了不同工况下水轮机传递系数和发电机6个参数的变化情况，进而计算这些参数变化对捌节对象特征根的影响。通过汁算表明，其水力振荡衰减速度与出力有关．而系统的其他运动特性随工况变化较小。     

澳大利亚进口焦煤煤质特性与结焦特性研究

通过质量检测、煤的岩相分析和20kg试验焦炉炼焦试验，对澳大利亚两种进口焦煤诺维茨煤和峰景煤的煤质和结焦特性进行了研究，两种进口焦煤低灰、低硫，为单一煤层煤，煤质稳定，配煤炼焦有利于焦炭质量稳定。峰景煤和国内柳湾煤的结焦性能相当，诺维茨煤的结焦性能与国内恒山煤和祁县煤的结焦性能接近。     

Electric and dielectric properties of solution-gas interface-grown PbS films

Dielectric properties andI–V characteristics of solution-gas interface-formed PbS thin-film capacitors (Al/PbS/Al) of various thicknesses have been studied in the frequency range 10-10⁶ Hz at various temperatures (300–443 K). Current-voltage (I–V) characteristics show space-charge-limited conduction. Dielectric constant (ε) increases with increasing film thickness and temperature and decreases with increase of frequency. The loss factor (tanδ) peaks observed in tanδ vs frequency and tanδ vs temperature reveal relaxation effect from dipolar orientation. These maxima shift to higher-temperature region with increasing frequency. The large increase in capacitance (C) and dielectric constant (ε) towards low-frequency (f) region indicates the possibility of an interfacial polarization mechanism in this region.     

陕北姬塬油区储集层特征地球物理测井分析

为了保持油井稳产，提高油藏采收率，姬塬油区拟采用面积法注水，急需对油藏分布规律进行详实、系统的研究，以保证井网建设的合理、高效。在前人研究成果基础上，对油区现有测井资料进行收集、整理、再解释，从油藏特征研究出发，对储集层进行测井分析，并使用克里金技术进行了地质建模。使用容积法计算油藏储量，为油区的注水开发提供了油藏资料。