钻孔灌注桩后压浆技术的应用与效果

介绍了后压浆技术提高灌注桩承载力的作用机理，并列举了四栋高层住宅楼工程中的应用情况，经试验结果分析，指出后压浆技术能大大提高灌注桩的承载力。     

微型灌注桩托换技术在地基基础加固工程中的应用

因场地淤泥等软土层深厚,在填方荷载作用下,软弱土层产生固结沉降,引起局部构筑物的不均匀沉降,发生结构破坏。采用微型灌注桩加固满足现场各个限制条件的要求,达到了加固目的。     

PIC单片机在激光电源中的应用研究

论述了单片机控制激光电源的原理，提出了产生PWM控制的基本思想及整个控制系统的硬件组成和软件设计方法。     

单螺杆挤出机—熔体泵串联挤出系统的性能与应用

从原理与应用方面，分析、探讨了单螺杆挤出机-熔体泵串联挤出系统的优异性能以及在塑料挤出成型领域的高效应用。     

液动旋冲接头冲击功测试方法研究

液动旋冲接头性能参数是旋冲接头设计的主要依据之一，如何对液动旋冲接头的参数进行检测是非常重要的工作。在分析和比较了测试液动旋冲接头性能参数各种方法的基础上，选择了冲击力法来进行破岩液动旋冲接头的性能参数测试，以YD系列测力传感器为检测元件，建立了一套比较完善的自动检测系统。分析了影响单次冲击功测试的因素，得出了测试旋冲接头的性能参数的影响规律。     

数控螺纹车削的单步插补控制法

分析了运动控制芯片MCX34的控制原理及单步插补实现过程，提出了基于运动控制芯片MCX314实现螺纹切削的单步插补控制法，从而实现快速，高效的螺纹加工。该方法控制过程简单 ，同步实现锥螺纹，控制精度高（0.001mm），响应快（≤1.6MHz)，脉冲确保不丢失，解决了数控螺纹车削存在的一系列关键问题。     

Adsorption and decomposition of H2S on Pd(1 1 1) surface: a first-principles study

Gradient-corrected density functional theory was used to investigate the adsorption of H₂S on Pd(1 1 1) surface. Molecular adsorption was found to be stable with H₂S binding preferentially at top sites. In addition, the adsorption of other S moieties (SH and S) was investigated. SH and S were found to be preferentially bind at the bridge and fcc sites, respectively. The reaction pathways and energy profiles for H₂S decomposition giving rise to adsorbed S and H were determined. Both H₂S_(ad) → SH_(ad) + H_(ad) and SH_(ad) → S_(ad) + H_(ad) reactions were found to have low barriers and high exothermicities. This reveals that the decomposition of H₂S on Pd(1 1 1) surface is a facile process.     

Bulk growth of Hg0.8Cd0.2Te single crystals by a combined CVT-seeding technique

The growth of high quality Hg_0.8Cd_0.2Te bulk single crystals by CVT, combined with an in-situ seeding technique, is reported here for the first time. For this purpose, a temperature difference of 590° → 540° C with a gradient of 40°-50° C/cm at the solid-vapor interface, and about 0.1 atm of HgI₂ as a transport agent, were employed. The bulk crystals have the expected stoichiometry and compositional homogeneity. Etch pit densities of 10⁴-10⁵ cm⁻² on the (111) face and hitherto unreported etch pits on the (100) face were observed in this work. Possible origins of the sub-grain structure are discussed.     

固定式塔吊基础设计与施工技术

潘家园小区工程建筑面积3．6万m^2，地下3层，地上28层。基槽标高-10.750m，地面至屋面女儿墙上口高度为83m，地上标准层层高2．8m。采用土钉墙护坡，坡度1：0．1，该工程的地质条件适宜桩基础的施工。     

PTC预应力管桩在软土地基处理中的施工工艺

结合PTC预应力管桩在沪宁高速公路扩建工程中的应用，从路基底板的施工、PTC预应力管桩的施工方面对其施工工艺进行了介绍，总结了PTC预应力管桩在软土地基处理中的应用优点。