仿土质专用肥的开发和应用前景

本文介绍了基于某些名、优农产品在其生长过程中所需要的特定敏感元素,配制出“仿土质”专用肥。经施用证明,肥效显著,经济效益可观,具有推广应用的前景。     

狭义相对论与钟慢效应关系再认识--纪念狭义相对论创立110周年

从爱因斯坦建立狭义相对论的科学方法与狭义相对论理论的逻辑构成入手,综合运用A· P·弗伦奇在国际著名的改革教材“美国麻州理工学院物理学导论丛书”第二卷《狭义相对论》中的研究观点和闵可夫斯基的四维时空理论,阐明狭义相对论与钟慢效应之间的正确关系。     

浅议高职院校科研成果转化问题

当前,高职院校科研工作发展迅速,但是往往"重研究,轻应用",科研成果转化数量少,这是一种资源的浪费。高职院校科研成果转化具有重要的现实意义,应该得到大力发展。文章分析了当前高职院校科研成果转化存在的问题,提出了促进高职院校科研成果转化的对策建议。     

TWO KINDS OF VARIANT IN SHAPE MEMORY MATERIAL

In shape memory materials,that have been trained to have a two way shape memory effect(TWSM),themartensitic variants are classified into two groups,i.e.,preferentially oriented variants and self-accommodatingvariants.Applied stress may promote or constrain the transition of preferentially oriented variants and so changetransformation temperatures but has no essential effect on self-accommodating variants.According to the pointof view mentioned above,some experimental phenomena during thermocycling of a TWSM device may be ex-plained,such as the absence of synchronization between the plot of resistance change.temperature and the plotof memory strain vs.temperature.     

马氏体相变研究的进展和瞻望SCIEI

叙述马氏体相变研究的一些进展和瞻望,包括马氏体相变的定义,马氏体相变热力学,奥氏体状态对马氏体相变的影响,动力学,形核和长大,以及马氏体相变晶体学。     

Abnormal Austenite-Ferrite Transformation Behaviors of Fe-ISi: Dilatometric Measurements

WITH THE APPEASING of competition of the totaloutput of iron and steels, the new generation of ultrahigh strength steel, based on the lessen the burden ofenvironment, double improvement of mechanicalproperties and elongation of the serving life, has beenfully outspreaded in the world. More and more researchwork shows that the solid-state microstructureevolution becomes the most effective route in thedevelopment of ultra-high strength steels. A process ofgreat interest in the steel produc…     

曲轴斜油孔钻削头设计

曲轴的各轴颈在很高的比压下作高速旋转运动,使轴颈和轴承受到强烈磨擦.为保证曲轴轴承工作可靠,曲轴上必须设置可靠的润滑油道,将润滑油送到轴承磨擦表面上去.此油道属细长孔,且于轴线成一定的角度.本文介绍的是一种曲轴斜油孔钻削头的设计、结构和原理等,动用了两个电磁离合器,使得一根钻削头在工作时,另一根钻削头停止旋转,避免不必要的空转功率消耗;该设备用于生产后,实践证明,运行可靠,操作方便,满足了生产需要.     

Archival Appraisal and the Digital Record: Applying Past Tradition for Future Practice

The digital revolution has changed the daily work of archivists. As a result, archivists have refined their analog practices and initiated new ones to accommodate the unique information creation and access needs of users. While limitless storage and technological obsolescence may be surmountable challenges, appraisal continues to be a necessary component of this preservation enterprise. Macro-appraisal—a top-down functional assessment of an organization’s high-level decision making that defines the enduring value of specific bodies of documentary evidence of these creative or administrative processes—is used to facilitate the management of diverse bodies of born-digital records in archives and special collections.