氮、铬对铸态锰钢性能的影响

针对氮、铬对铸态锰钢性能的影响作了系统试验。结果表明：加入氮和铬得到了细化的奥氏体基体和弥散分布的团球状碳化物，显著提高了铸态锰钢的加工硬化能力，并使其具有足够的冲击韧性和良好的抗磨性能。     

基于Web的信息化制造策略

信息化制造是现代信息技术与制造技术相结合的产物，可以实现制造资源、信息、人员、技术的高度集成和合理配置。给出了信息化制造的定义和特点，对实施信息化制造所涉及的关键技术、参考模型以及供应链网络的信息共享方式进行了研究，在此基础上，提出了信息化制造的基础设施——供应链信息基础框架。     

测定人参中有机氯农药残留量的样品萃取方法研究

样品中被测物质残留量的萃取方法是分析方法准确可靠的关键环节。本文采用天然的含有有机氯农药残留的人参样品作为研究对象,改变了以往添加农药到样品中的作法;对现行的前处理技术作了实测和比较,并确定了人参中多种有机氯农药残留最新的前处理技术方法——快速溶剂萃取（ASE）。此研究比较贴近自然和实际,有较强的可信性。     

A quality control method by ultrasonic vibration energy and diagnosis system at trimming process

To investigate a relation between vortex clusters and large-scale structures in the outer layer of wall turbulence, direct numerical simulations of turbulent channel flows have been conducted up toRe _τ = 1270. The vortex clusters in the outer layer consist coherent fine scale eddies (CFSEs) of which diameter and maximum azimuthal velocity are scaled by the Kolmogorov length and the Kolmogorov velocity. The CFSE clusters are inside the large-scale structure, which contributes to the streamwise velocity deficit The scale of those clusters tends to be enlarged with the increase of a distance from the wall. The CFSE clusters are composed of the relatively strong CFSEs, which play an important role in the production of the Reynolds shear stress and the dissipation rate of the turbulent kinetic energy. The most expected maximum azimuthal velocity of the CFSEs in these low-momentum regions of the outer layer is 30–70% fester compared with those of the CFSEs in unconditioned regions (i.e. all regions of the outer layer), while the most expected diameter of the CFSEs is not changed greatly.     

基于小波变换的智能混合诊断系统

介绍了计算智能的主要内容和研究方法及其在故障诊断中的应用，讨论了小波变换在故障诊断中的重要作用，提出了一种基于小波变换的智能混合诊断系统。     

Improvement of the steering feel of an electric power steering system by torque map modification

This paper discusses a de motor equipped electric power steering (EPS) system and demonstrates its advantages over a typical hydraulic power steering (HPS) system The tire-road interaction torque at the steering tires is calculated using the 2 d o f bicycle model, in other words by using a single-track model, which was verified with the J-turn test of a real vehicle Because the detail parameters of a steering system are not easily acquired, a simple system is modeled here In previous EPS systems, the assisting torque for the measured driving torque is developed as a boost curve similar to that of the HPS system To improve steering stiffness and return-ability of the steering system, a third-order polynomial as a torque map is introduced and modified within the preferred driving torques researched by Bertollini Using the torque map modification sufficiently improves the EPS system     

伴有高频振动情况折叠传动轴疲劳寿命可靠度计算

本文主要针对某型航空发动机折叠式传动轴进行疲劳可靠性计算。首先按常规方法将高频振动的应力与低频部分应力（载荷谱为单调增加及单调下降的梯形波）相叠加，然后应用Ｈ－Ｌ方法计算可靠度，本文突出利用弹性变形的特点，推导计算中所需的偏导数的解析表达式，节省了随机有限元计算的时间，达到同样的效果，本法计算简单，比常规Ｍｏｎｔｅ－ｃａｒｌｏ法要节省机时一半以上。     

IR在新药沙纳唑结构确证中的应用

用IR对一类新药沙纳唑的化学结构进行确证,主要得到3403,3108,2995,1668,1555,1371和1145(cm~(-1))7个吸收峰,大部分是强的伸缩振动,分别代表分子结构中的-NH,=CH,-CH,-CONH,-NO_2(反称),-NO_2(对称)和-OCH_3官能团。结合NMR,UV,MS,X线衍射等测试结果,确证沙纳唑的结构式确实为N-(2-甲氧基乙基)-2-(3-硝基-1,2,4-三氮唑基-1-)乙酰胺。     

Dynamic deformation under a modified split Hopkinson pressure bar experiment

This paper presents a modified split-Hopkinson pressure bar (SHPB) technique. The dynamic stress-strain behaviors were estimated at room temperature and subzero temperature to −75°C by using the conventional SHPB and compared with a modified SHPB technique. A computer simulation using a finite element algorithm is also performed to study the dynamic material responses. Furthermore, we attempt to find a proper material constitutive law by using the simulation process. It is suggested that the modified SHPB test used in this study can be successfully utilized to offer an experimental condition of a higher strain rate than that obtained from the conventional SHPB test.