MicroCal Origin软件包在数据处理与图形绘制中的应用

在数据采集与处理过程中，往往会遇到数据量大、数据处理步骤繁杂以及人为做图误差大等诸多困难。该文利用MicroCal Origrin 6.x软件包中数据分析及图形绘制的强大功能，将其应用于测定溶液表面张力，计算溶液表面饱和吸附量以及饱和吸附分子的横截面积。所得结果与文献值较好吻合。     

冻土墙用于基坑支护的力学设计方法探讨

以直线形冻土墙用于基坑支护的物理模拟试验结果为基础。分析了冻土墙受力。强度分布特点以及变形特性，从临时支护和止水两个基本作用出发，探讨了冻土墙的力学设计原理和方法。认为冻土墙有效厚度的计算是力学设计的核心。必须综合考虑其温度分布特点，墙体的抗倾覆稳定。强度条件和变形条件。并给出了相应的设计步骤。     

赵固一矿主井冻结方案优化设计研究

对赵固一矿冲积层埋藏特点进行了分析,采用理论与实践相结合的分析方法,对设计基本参数进行优化,并按强度条件和变形条件设计了冻结壁厚度、安全掘进段高度、冻结孔布置方式和深度.实践表明,该优化设计方案能较好地满足现场工程实践的要求.     

谈Authorware课件的“减肥”

本文从实用出发,针对Authorware课件不同类型的多媒体素材及课件制作后期的打包、发布等的具体操作,较详尽的论述了使课件“减肥”的措施,以达到节省磁盘空间和提高演示效果的目的。     

人工冻土蠕变的数值计算及其模拟

根据人工冻土蠕变特征和本构方程，引入经典弹塑性力学理论，将空间域和时间域进行离散化，提出了以时间增量法为基础的人工冻土有限元数值模拟计算公式应用ANSYS有限元程序分析了一个实例．并将数值模拟结果、解析解和现场实测数据进行对比分析，结果表明运用数值模拟方法可以模拟冻土的蠕变计算，揭示冻结壁变形规律，且具有一定的计算精度，从而为今后人工冻土蠕变计算提供了一种实用方法．     

Freeze-fracturing for conventional and field emission low-temperature scanning electron microscopy: the scanning cryo unit SCU 020

A dedicated cryopreparation system, the SCU 020 (Balzers), is introduced and described in detail for use in low-temperature scanning electron microscopy (LTSEM). The basic unit consists of two parts: (i) a high-vacuum preparation chamber equipped with a cold-stage, motor-driven fracturing microtome, planar magnetron (PM) sputter source, quartz-crystal thin-film monitor, Meissner cold trap, and turbo molecular pump stand; and (ii) a second part (separated from the first by a sliding, high-vacuum valve) residing in the SEM chamber. This is equipped with an anti-contamination cold trap, a fully movable goniometer cold stage (having motor drives for x, y, and rotation) and replaces the SEM's original stage (Raith). The SCU 020 is entirely self contained allowing independence from, and synchroneity with, the SEM of choice. LTSEM micrographs of specimen (that are fully frozen hydrated or partially freeze-dried) surfaces or fracture faces, without or with various metal coatings, can be examined over a broad temperature range (-150 to +50°C). This is made possible by the combined application of the two, independently controlled, cold stages and the on-line, high-vacuum, specimen cryo transfer between them. In-situ etching is simple and straightforward. Intramembranous particles and membrane fracture steps, typically imaged in transmission electron microscopy (TEM), are resolved by PM sputtering with platinum at low specimen temperature and high-resolution LTSEM in a field emission microscope.     

Development and Verification of the Equilibrium Strategy for Batteries in Electric Vehicles

The inconsistency of the cells in a battery pack can affect its lifespan,safety and reliability in the electric vehicles.The balanced system is an effective technique to reduce its inconsistency and improve the operating performance.A hybrid equilibrium strategy based on decision combing battery state-of-charge (SOC) and voltage has been proposed.The battery SOC is estimated through an improved least squares method.An equalization hardware in loop (HIL) platform has been constructed.Based on this HIL platform,equilibrium strategy has been verified under the constant-current-constant-voltage (CCCV) and dynamic-stress-test (DST) conditions.Experimental results indicate that the proposed hybrid equalization strategy can achieve good balance effect and avoid the overcharge and over-discharge of the battery pack at the same time.     

包渗法制备硅化物涂层的结构形貌及形成机理

采用包渗法在C-103铌合金基体上制备MoSi2涂层,通过X射线衍射、扫描电镜和能谱分析等手段研究涂层表面、截面形貌以及氧化后涂层结构变化,并分析硅化过程中涂层的形成机理。研究结果表明：包渗法制备硅化物涂层是通过反应扩散形成的,硅化过程服从抛物线规律;该涂层为复合结构：MoSi2相为主体层;以NbSi2相为主、并含少量Nb5Si3相的两相为过渡区;Nb5Si3相为扩散层。在高温氧化环境下,涂层表面生成致密的非晶氧化层,有效地阻止了氧向涂层内扩散。     

焦化厂3#、4#焦炉装煤车后部支体改进

装煤车是炼焦生产的重要设备之一,其后部支体开裂影响生产是长期困扰一、二炼焦车间的主要问题.文章针对这个问题,进行受力分析,查找原因,提出改进方案,对风闸气路系统进行改造,对后部支体补强,实施后效果良好.     

锂离子储能电池成组方式优化

电池组内单体电池的分散性问题降低了电池组的可用容量和循环寿命.针对电池成组方式对电池组可用容量与循环寿命的影响问题,基于电池的Thevenin等效模型,分析了并联电池间不平衡电流交叉现象产生的原因及作用;研究了不同成组方式对电池组可用容量的影响,提出了表征电池组容量分散性的容量极差和容量分散度指标;通过仿真分析,得到了提升电池组可用容量的组合方式.搭建了电池组性能测试平台,比较了6种拓扑结构锂离子电池模组的寿命衰减特征,遴选出了减缓电池组循环寿命衰减的成组结构.