有粘结预应力在252m地下室顶板中的应用

在总长度 2 5 2m的超长不设缝地下室顶板中 ,采用了预应力、设置后浇带等综合抗裂技术 ,并对有粘结预应力平板的设计理论、施工工艺、锚固体系及超长结构预应力损失控制和抗裂控制作了深入研究。     

IF钢冷轧及再结晶初期微观组织的TEM研究

采用透射电子显微镜对不同压下量和再结晶初期的IF钢样品进行了研究．结果表明：无论是在较小形变量下还是在较大形变量下，形变不均匀性是普遍存在的；冷变形程度不同，织构组分不同，TEM形貌也不同；在再结晶的最初期，冷轧的形变组织演变为近乎等轴的亚晶，优先形成{111}〈uvw〉取向的晶核，晶核逐渐吞并周围的形变基体而长大，最终形成再结晶γ-纤维织构．     

操纵员心理评价方法研究

文章对核电厂操纵员心理定性化评价以及定量化评价方法进行分析和探讨。对轮廓图匹配法和模糊综合评价法的适用范围、应用效果进行了比较分析。该研究的结果可为操纵员评价提供有益参考。     

一种高精度的CMOS带隙基准电压源

设计了一种采用0.25 μm CMOS工艺的高精度带隙基准电压源.该电路结构新颖,性能优异,其温度系数可达3×10-6/℃,电源抑制比可达75 dB.还增加了提高电源抑制比电路、启动电路和省功耗电路,以保证电路工作点正常、性能优良,并使电路的静态功耗较小.     

Electrochemical C-V Characteristics and Photoluminescence of a-C∶N Films

Amorphous carbon (a-C) films and amorphous carbon films incorporating with the nitrogen (a-C∶N) were deposited on silicon substrates in a radio-frequency driven plasma enhanced chemical vapour deposition system, while the surface electrical properties of films were investigated by electrochemical capacitance-voltage measurements. It was examined the effect of the interface defects on the properties and deduced that the conducting type of a-C∶N films was n-type. Subsequently, a comparative studies of a-C and a-C∶N films were performed by photoluminescence spectra depending on the temperature. With the decrease of the temperature, the main band with peak energy of 2.48 eV in the a-C∶N films was more intense compared with the other three bands caused by amorphous C in the a-C films.     

石化企业分配制度改革初探

在明确中国石化集团公司收入分配制度改革的目标模式下,从健全和完善企业激励机制的角度,对炼化企业职工收入分配制度中工资和奖金的分配设计提出改进措施和建议。     

Optimal Layout of Displacement Measurements for Parameter Identification Process in Geomechanics

This paper focuses on designing the optimal layout of measurements for parameter identification problems in geomechanics, which are usually based on in situ displacements. The existence, uniqueness, and stability of the solution from the parameter identification process are thoroughly discussed. Based on these understandings of the problem, two algorithms are proposed as a means of automatically generating the optimal measurements. The validity of these algorithms is first proved by some academic examples, then these algorithms are applied to the Munich subway tunnel project. Good results are observed there.     

高碳铬铁电炉炉衬的损坏及维护

叙述了重钢公司几个高碳铬铁电炉使用全印度粉矿在冶炼过程中炉衬的损坏情况及其原因，提出了炉衬维护中应注意的几个方面。     

电接点压力表补水泵定压系统的应用

阐述了电接点压力表补水泵定压系统的一些应用问题 ,给出了电接点压力表定压点的上、下限计算公式 ,并提出了该系统补给水泵、补给水箱及安全阀的设计选型方法     

基于压水试验数据的渗透系数应力敏感性研究

岩体渗透率与应力关系是进行岩体渗流应力耦合分析的基础。基于龙滩水电站边坡岩体渗流压水试验结果和边坡岩体岩性及物理力学性质，对岩体渗透系数和地应力进行了分析计算，给出了边坡岩体渗透率随应力变化的关系式，为进行边坡岩体渗流一应力耦合分析提供了可靠数据。