BS 0 Pt.1-1981 标准制定导则.第1部分:标准化一般原理
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来源:标准资料网
【英文标准名称】:Astandardforstandards.Guidetogeneralprinciplesofstandardization
【原文标准名称】:标准制定导则.第1部分:标准化一般原理
【标准号】:BS0Pt.1-1981
【标准状态】:作废
【国别】:
【发布日期】:
【实施或试行日期】:
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:
【中国标准分类号】:A00
【国际标准分类号】:
【页数】:
【正文语种】:
【英文标准名称】:Opticsandphotonics-Opticaltransferfunction-Definitionsandmathematicalrelationships
【原文标准名称】:光学和光子学.光的传递函数.定义和数学关系
【标准号】:ISO9334-2007
【标准状态】:作废
【国别】:国际
【发布日期】:2007-06
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC172
【标准类型】:()
【标准水平】:()
【中文主题词】:定义;英语;公式(数学);法语;函数(数学);图像质量指示器;数学运算;数学;多语种的;光学的;光学设备;光学仪器;光学;光电子学;参数;光子学;辐射物理学;关系;俄语;符号;术语;传递函数;传输;词汇
【英文主题词】:Definitions;Englishlanguage;Formulae(mathematics);Frenchlanguage;Functions(mathematics);Imagequalityindicators;Mathematicaloperations;Mathematics;Multilingual;Optical;Opticalequipment;Opticalinstruments;Optics;Optoelectronics;Parameters;Photonics;Radiationphysics;Relation;Russianlanguage;Symbols;Terminology;Transferfunctions;Transmission;Vocabulary
【摘要】:ThisInternationalStandarddefinestermsrelatingtotheopticaltransferfunctionandindicates,wherepertinent,themathematicalrelationshipsbetweenthoseterms.Italsodefinesimportantparametersthatshouldbespecifiedinconnectionwithopticaltransferfunctiontesting.Table1liststhenotationandunitsforthemajorparametersconsideredinthisInternationalStandardandtobeusedinISO9335andISO9336.ThetermsandparametersdefinedinthisInternationalStandardapplytoallmeasurementsoftheopticaltransferfunctionforoptical,electro-opticalandotherimagingsystems.
【中国标准分类号】:A42
【国际标准分类号】:17_180_01
【页数】:30P.;A4
【正文语种】:英语
Product Code:SAE AIR1387
Title:Designing With Elastomers for Use At Low Temperatures, Near Or Below Glass Transition
Issuing Committee:Ams Ce Elastomers Committee
Scope:To ensure success in design of elastomeric parts for use at low temperature, the design engineer must understand the peculiar properties of rubber materials at these temperatures.There are no static applications of rubber. The Gaussian theory of rubber elasticity demonstrates that the elastic characteristic of rubber is due to approximately 15% internal energy and the balance, 85%, is entropy change. In other words, when an elastomer is deformed, the elastomer chain network is forced to rearrange its configuration thereby storing energy through entropy change. Thermodynamically, this means that rubber elasticity is time and temperature dependent (Reference 25).The purpose of this report is to provide guidance on low temperature properties of rubber with the terminology, test methods, and mathematical models applicable to rubber, and to present some practical experience. In this way, it is hoped that mistakes can be avoided, particularly in selection of rubber materials, enabling the design engineer to weigh low-temperature material properties together with the many other factors involved in the design process.
