论文部分内容阅读
捷克计量体制的改革
【出 处】
:
计量动态
【发表日期】
:
1999年3期
其他文献
对于热力耦合大变形问题,构造了同时求解变形和温度的热弹塑性变分原理和相应有限元法,并与金属微观组织演变数学模型相结合提出了热变形过程微观组织的数值预报方法,针对丙结晶
Intermolecular Interactions, Thermodynamic Properties, Detonation Performance, and Sensitivity of TN
Intermolecular interactions and properties of TNT(2,4,6-trinitrotoluene)/CL-20(2,4,6,8,10,12-hexanitrohexaazaisowurtzitane) cocrystal were studied by density fu
本文概述了国际计量技术联合会(IMEKO)的组织机构和工作计划。列出了对米制公约、OIML与IMEKO的一份简要的比照表。介绍了IMEKO第11委员会“计量学基础”的活动,活动的主要目的是通过提供计量学及其相
Ionothermal Synthesis and Characterization of a Threedimensional Anionic Zinc-5-sulfoisophthalate Fr
The ionothermal reaction of Zn(NO_3)_2·6H_2O with 5-sulfoisophthalic acid monosodium salt(NaH_2SIP) and 1,2,4-triazole in 1-ethyl-3-methylimidazolium tetra
讨论了一种对回转 具有多种倍频邦联的全息谱进行分解得到多个只含单一故障的全息谱的方法,该方法有助于判明各倍频故障的存在及严重程度,为回转机械的检修提供参考。
Tissue substitutes are required in a number of clinical conditions for treatment of injured and diseased tissues.Tissues like bone,skin,amniotic membrane and so
首次提出一种新型传动方式,描述了此类传动的基本结构和工作原理,给出了相应的数学模型,并详细分析了系统的动力机构特性。提出了用气液联控伺服系统可以实现常规气压伺服系统难
Atrial fibrillation(AF) management requires knowledge of its pattern of presentation,underlying conditions,and decisions about restoration and maintenance of si
In order to investigate the non-bonded interaction between picene and B12 N12 nano ring(BNNR) in different orientations and distances, we focused on a single-wa
We report an improved method for the preparation of highly dense nickelate ceramics at relatively low temperature. It is found that the introduction of appropri
期刊