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This International Standard provides a framework for introducing nanoelectronics into large scale, high volume production in semiconductor manufacturing facilities through the incorporation of nanomaterials (e.g. carbon nanotubes, graphene, quantum dots, etc.). Since semiconductor manufacturing facilities need to incorporate practices that maintain high yields, there are very strict requirements for how manufacturing is performed. Nanomaterials represent a potential contaminant in semiconductor… read more manufacturing facilities and need to be introduced in a structured and methodical way. This International Standard provides steps employed to facilitate the introduction of nanomaterials into the semiconductor manufacturing facilities. This sequence is described below under the areas of raw materials acquisition, materials processing, design, IC fabrication, testing, and end-use. These activities represent the major stages of the supply chain in semiconductor manufacturing facilities. read less

定价： 56元 / 折扣价： 48 元

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This guide provides guidance of large scale Artificial Intelligence (AI) models in financial risk management. For the application of such models, the guide provides applicable scenarios, basic conditions, model creation, iterations, and suggested capabilities. The guide is specifically aimed at providing help to financial organizations by giving directions on planning, building, deploying, and maintaining these AI models, with respect to algorithms, in financial lending scenarios.

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This document describes guidelines for online monitoring of large synchronous generators with ratings of 10 MVA and above. The scope includes generators with salient-pole rotors as well as generators with cylindrical rotors. This standard also provides basic information on the various online monitoring techniques described as well as recommended threshold values for initiating a remedial or compensating action, whenever those values are typical within the power generation industry. This… read more standard does not cover those instruments that are clearly associated with the protection scheme of the generator, such as: differential, out-of-step, over/under frequency, and so forth. read less

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This recommended practice describes methods for defining the dc load in a generating station or a substation and for sizing a lead storage battery to supply that load. Some factors relating to cell selection are provided for consideration. Installation, maintenance, qualification, testing procedures, and consideration of battery types other than lead storage are beyond the scope of this recommended practice. Design of the dc system and sizing of the battery charger(s) are also beyond the scope… read more of this recommended practice. read less

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Test methods and instrumentation techniques used to measure the ac characteristics of large grounding systems include the following topics: 1) Measurement safety 2) Earth-return mutual errors 3) Low-current measurements 4) Power-system staged faults 5) Communication and control cable transfer impedance 6) Current distribution (current splits) in the grounding system 7) Step, touch, mesh, and proÞle measurements 8) The foot-equivalent electrode earth resistance 9) Instrumentation characteristics… read more and limitations Grounding electrodes consisting of a single ground rod, arrays of ground rods, tower footings, and many grids (if no external grounding is connected) can be measured, interference voltages permitting, with methods outlined in IEEE Std 81-1983 [2] 1 . Even if a large grid has an impedance phase angle of 18 ° the resistance component will be only 5% lower than its impedance. However, for large grounding grids in low-resistive earth (<75 W -m) and for grounding systems that have numerous extended grounding conductors, the impedance could be signiÞcantly greater than the resistive component measured with the conventional test sets of IEEE Std 81-1983 read less

定价： 222元 / 折扣价： 189 元