高压气瓶爆裂失效分析

利用扫描电镜和能谱仪、金相显微镜等方法，对高压气瓶打压时在瓶颈处产生横向爆裂的原因进行了分析．得出结论：外来的铜蹭人管坯，高温加热时铜沿晶渗透造成晶界脆化、强度降低、沿晶开裂，导致气瓶打压时横向爆裂。     

Analysis and Reduction of Ultrasonic Pitting Defects on Hard Disk Surfaces

It has become of paramount importance to be able to perform failure analysis of defects on hard disk surfaces quickly and accurately. In this study, ultrasonic pitting defects on hard disk surfaces were investigated. A new electrical tagging pattern system, which directly translated the channel bits to magnetic transitions during writing of the magnetic pattern around a defect, was used in the failure analysis of magnetic recording disks to mark defective sectors. With the help of the Kerr magneto-effect, the defective sectors were effectively located for further failure analysis. Results of the failure analysis revealed that there was 30% to 40% loss of the recorded magnetic bit signal due to an increase in the gap between a recording head and a hard disk surface with ultrasonic pitting defects. The experiments performed indicated that low ultrasonic power for disk cleaning could reduce the ultrasonic pitting defects significantly. The maximum failure rate due to single-type ultrasonic pitting defects was reduced from 33.4% to 16.7%, while the maximum failure rate due to cluster-type ultrasonic pitting defects was reduced from 11.1% to 5%.     

2#高炉卷扬控制系统

阐述了炼铁厂2#高炉卷扬机在上料中的工艺运行过程,介绍了直流电机调速系统的组成及原理,从中说明了西门子6RA24直流调速装置如何准确、快速地控制卷扬电机的运行速度。     

Strain profiling of fatigue crack overload effects using energy dispersive X-ray diffraction

Synchrotron based energy dispersive X-ray diffraction has been used to profile the strains around fatigue cracks in 4140 steel test specimens. In particular strain field comparisons were made on specimens prepared: with initial constant stress intensity fatigue; with this initial fatigue followed by a single overload cycle; and with this fatigue-overload sequence followed by an additional constant stress intensity fatigue. The strain profiles behind, at and in-front-of the crack tip are discussed in detail. Selected strain profiles measurements under in situ applied tensile stress are also presented. The technique of optical surface height profiling reveals surface depression effects which can be correlated with the interior strain profiles.     

企业文化重塑与我国先进文化的前进方向——兼议多元文化冲击下的企业文化建设

企业文化和企业物质力量结合的深度决定了企业长期业绩增长和企业长远发展的潜力。在社会转型、全球化、信息化和现代化的内外环境的规压下，我国的企业要从多元文化的冲突与碰撞和传统文化的迷失中走出来，塑造一种全新的与我国先进文化的前进方向一致以及与现代经济、管理发展趋势相适应的企业文化，以此促进我国企业茁壮成长。     

基于基因算法的函数优化问题求解策略研究

系统地论述了基因算法在函数优化问题中的应用，提出了基于基因算法的函数优化问题的通用求解策略，通过实例的分析及计算，得出较为理想的结果．     

制造业绿色发展战略评价

制造业在将资源转变为产品的过程中及产品使用和处理过程中，产生的废弃物对环境的影响比较严重，可持续发展能力不强．企业为了生存和发展，适应内外环境变化，赢得竞争优势的关键在于制定一个适合制造业发展的绿色发展战略．本文在阐述绿色发展战略评价的目的和内容的基础上，建立了将制造业的绿色发展战略的技术评价及经济评价相结合的评价理论体系、程序和方法．     

膨胀土路基CBR值的达标研究

采用生石灰和熟石灰时孝襄公路路基膨胀土进行改良处理，以提高路基承载能力，试验结果表明，掺加4％～7％的生石灰或者熟石灰，可以大大改善中型或弱型膨胀土的路用性能。改良后的膨胀土的CBR值达到了8％以上，最高达到70％以上，满足了路面设计对路基土的质量要求。     

抽油井真实液面测试技术研究及应用

当抽油井流压低于原油饱和压力时，环空中由于气体从油中分离出来而产生泡沫段，从而失去明显的油气界面，无法采用回声仪测试油井的真实液面，给流压计算带来了一定误差，造成了生产决策的失误，根据物质平衡方法设计的拟液面测试仪，通过测试油套环空排气和恢复时的压力梯度及排气量，并根据油井的油气比、含水率、气体比重进行修正，计算出环空拟气柱的高度，即油井真实液面。现场测试表明，该方法比回声仪测试法误差减少10％以上，能满足油井液面测试的需要。     

大功率微波热疗机用热电偶测温装置

介绍了一种用于UHR-915型大功率微波热疗机的热电偶测温装置。分析了热电偶的测温原理和在高强度微波环境下用热电偶进行温度测量的特点,采用了一些特殊的抗干扰措施,测温准确度达到±0.2℃,满足了临床治疗的要求。