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This standard sets forth methods to be followed for specifying drawing data for gears operating on axes which are parallel.

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定价： 113元 / 折扣价： 97 元

定价： 53元 / 折扣价： 46 元

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In setting up test procedures for radiation counter tubes, it is necessary to consider not only the test circuits but also the physical arrangements of test, such as nature of source, distance between source and counter, scattering by objects near the source or counter, shielding of the counter against unwanted radiations, and the background due to cosmic rays and general contamination. The relative importance of these various factors will depend on the type of counter under test.

定价： 55元 / 折扣价： 47 元

This intent of this standard is to quantify the performance of camera-equipped mobile devices. There is an emphasis on metrics and procedures appropriate to the types of sensors, lenses, and signal processing routines present on such devices. It is not intended as a general image quality standard for photographs produced by high-end dedicated cameras, e.g., digital single-lens reflex (DSLR) cameras. The testing plan provides test procedures for all requirements covered in the IEEE 1858 standard.

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This standard provides the following two types of information to the developers of layer-, sublayer-, or resource-specific management specifications: a) Definition of common management information such as attributes, managed object classes, packages, behaviours, and encodings of information used by LAN/MAN Management. b) Common procedures required for specification of LAN/MAN Management, such as relationships to otherre common management information specifications and methods for registering management information within IEEE 802 standards. This standard provides assistance and guidance to the developers of LAN/MAN management specifications that will — Reduce duplication of effort by identifying commonly useful definitions and procedures. — Encourage consistency between such specifications. — Encourage the development of such specifications in a manner that will ensure compatibility with LAN/MAN Management specifications (ISO/IEC DIS 15802-2, ISO/IEC 8802-3 Amendment 11, and ISO 7498 : 1984) and with ISO/IEC 9595 : 1991 and 9596-1 : 1991.

定价： 81元 / 折扣价： 69 元

A discussion of the available standard phase shifters, the general principles of measurement techniques, and the basic measurement precautions is included in this Report along with a bibliography of pertinent literature. This is one of a series of such reports planned under a program being carried out by the IEEE.* The data in this Report have been assembled by a special subcommittee working in the field of microwave phase-shift measurements.

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