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MIL-HDBK-7B, MILITARY HANDBOOK: LUMBER AND ALLIED PRODUCTS (6 AUG 1982)., lumber and wood products normally procured in considerable quantity for Department of Defense installations. Engineers are particular directed to the chapters dealing with strength of wood, preservative treatment, and moisture c o n t e n t . The chapters dealing with storage handling, tallying, inspection, grading, and sizes were written with the problems of inspectors, stock handlers, and supply clerks in mind. All of these chapters prove useful to the requisition writer by providing references useful in determining which species, q u a l i t i e s , and sizes of lumber, plywood, poles, railroad ties, and other wood products are usable for a given end use. This handbook also provides ready reference to the physical and mechanical properties of lumber products and the conditions of use that require special treatment with preservatives, fire r e t a r d a n t s , or special surfacing and machining. It is the primary purpose of this handbook to provide the kind of background information needed in making necessary decisions on all such problems. This type of information is not readily available elsewhere in a form directly related to supply problems involving lumber and allied products. To the extent that this handbook achieves its primary purpose, it is believed that important economies can be effected, greater assurance secured that the needed species, q u a l i t i e s , q u a n t i t i e s , and sizes will be received, and requisitioning procedures f a c i l i t a t e d . The handbook also has as part of its purpose to provide information on the handling, storage, and use of wood products to the end that better service will be obtained at less cost. The large quantities of wood products normally required by the various branches of the Department of Defense make economy of use just as essential as economical procurement; failure in the one can quickly offset any gains realized through success in the other. Moreover, proper handling, storage, and use are essential in the interest of conservation of the forest resources.

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【英文标准名称】:Hoistsforthetransferofdisabledpersons-Requirementsandtestmethods(ISO10535:1998);GermanversionENISO10535:1998
【原文标准名称】:残疾人电梯.要求和试验方法
【标准号】:DINENISO10535-1998
【标准状态】:作废
【国别】:德国
【发布日期】:1998-12
【实施或试行日期】:
【发布单位】:德国标准化学会(DIN)
【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】:Q78
【国际标准分类号】:11_180_10;53_020_99
【页数】:24P;A4
【正文语种】:德语


【英文标准名称】:Informationtechnology-Securitytechniques-Entityauthentication-Part3:Mechanismsusingdigitalsignaturetechniques
【原文标准名称】:信息技术安全技术实体鉴别第3部分:用数字签名技术的机制
【标准号】:ISO/IEC9798-3-1998
【标准状态】:现行
【国别】:国际
【发布日期】:1998-10
【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/IECJTC1
【标准类型】:()
【标准水平】:()
【中文主题词】:算法;信息技术;数据安全;数据处理;数据传送;电子数据处理;数据保护
【英文主题词】:Algorithms;Dataprocessing;Dataprotection;Datasecurity;Datatransfer;EDP;Informationtechnology
【摘要】:本部分规定了采用数字签名技术的实体鉴别机制。有两种鉴别机制是单个实体的鉴别(单向鉴别),其余的是两个实体的相互鉴别机制。本部分中规定的机制采用诸如时间戳、序号或随机数等时变参数,防止先前有效的鉴别信息以后又被接受或者被多次接受。如果采用时间戳或序号,则单向鉴别只需一次传递,而相互鉴别则需两次传递。如果采用使用随机数的激励一响应方法,单向鉴别需两次传递,相互鉴别则需三次或四次传递(依赖于所采用的机制)。
【中国标准分类号】:L70
【国际标准分类号】:35_040
【页数】:11P.;A4
【正文语种】:英语