定价： 元 加购物车

定价： 元 加购物车

定价： 元 加购物车

定价： 元 加购物车

定价： 元 加购物车

定价： 元 加购物车

This Verification and Validation (V&V) standard is a process standard that addresses all system, software, and hardware life cycle processes, including the Agreement, Organizational Project-Enabling, Technical Management, and Technical Process Groups. This standard is compatible with all life cycle models (e.g., system, software, and hardware); however, not all life cycle models use all of the processes listed in this standard. V&V processes determine whether the development products of… read more a given activity conform to the requirements of that activity and whether the product satisfies its intended use and user needs. This determination may include the analysis, evaluation, review, inspection, assessment, and testing of products and processes. The user of this standard invokes the V&V processes associated with the life cycle processes used by the project. A description of system life cycle processes may be found in ISO/IEC/IEEE 15288:2023(E) [B41], and a description of software life cycle processes may be found in ISO/IEC/IEEE 12207:2017(E) [B40]. This standard defines the Verification and Validation Processes that are applied to the system, software, and hardware development throughout the life cycle, including acquisition, supply, development, operations, maintenance, and retirement. This standard applies to the system, software, and hardware being acquired, developed, maintained, or reused. The term software also includes firmware and microcode (e.g., field programmable gate arrays and programmable logic devices). Each of the terms system, software, and hardware includes its associated documentation. read less

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This recommended practice specifies the Power Quality Data Interchange Format (PQDIF) for the transfer of power quality data between monitoring instruments and computers. This includes raw data as well as processed, simulated, proposed, specified, and calculated data. The scope of the transfer file format includes the power quality measurements as well as appropriate characterization parameters, such as sampling rate, resolution, calibration status, instrument identification, location, and… read more other related metadata or characteristics. The recommended practice also provides best practices for representing data and guidelines for transferring power quality data. This standard incorporates open-source material hosted on the IEEE SA Open Source Platform. read less

定价： 元 加购物车

This is a full-use standard, a revision of ISO/IEC 13213:1994; its scope reflects accumulated experience with the CSR architecture since it was first promulgated as a standard in 1991. In the intervening years, two bus standards, Scalable Coherent Interface (SCI), IEEE Std 1596-199x, and Serial Bus, IEEE Std 1394-1995, have been the source of most practical implementation experience. The revised scope of the CSR architecture is given below: a) The overall architectural framework partitions the… read more total available address space into equal spaces available to individual nodes. A node's address space is in turn partitioned into regions which have different usage models, e.g., memory space, private space for vendor uses, configuration ROM and an I/O space (units space) where transactions may have side effects; b) A minimal transaction set (read, write and lock requests and their associated completion responses) required for compliant bus standards. Bus bridges compliant with this architecture, whether in a homogeneous or heterogeneous environment, are also expected to transport this transaction set; c) Fundamental control and status registers (CSRs) are defined to provide a common infrastructure for all compliant buses. In some cases the details of the registers are entirely bus-dependent but the function is common to all compliant buses; d) Message request and response CSRs are specified to enable directed delivery or broadcast of messages to multiple nodes. The message format permits organizations or vendors to define the meaning of the data payload without the need for a centralized registry of all possible formats; and e) Configuration ROM provides self-descriptive data structures that permit nodes to uniformly characterize the device services available. This is critical for buses that permit live insertion and removal of nodes; each newly inserted node contains sufficient information for it to be uniquely identified and for the requisite device drivers to be loaded. Although the original CSR architecture anticipated widespread development of bridges between heterogeneous bus standards and a diversity of addressing modes, both fixed and variable, no such implementations have been made. As a consequence, the most significant changes in scope between the earlier CSR architecture and this standard are the adoption of a single, fixed addressing model and the removal of tutorial material pertaining to the design of bridges. read less

定价： 元 加购物车

This document provides quantity definitions for designing and using instrumentation for the measurement of electric power quantities under sinusoidal, nonsinusoidal, balanced, and unbalanced conditions.

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This document defines the interface between federates (simulations, supporting utilities, or interfaces to live systems) and the underlying software services that support interfederate communication in a distributed simulation domain.

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This standard specifies the XEX (XOR Encrypt XOR) Tweakable Block Cipher with Ciphertext Stealing (XTS) cryptographic mode of operation for the Advanced Encryption Standard (AES) block cipher for logical block-oriented storage devices.

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This document provides guidance for an objective evaluation of flow batteries by a potential user for any stationary application. This document is to be used in conjunction with IEEE Std 1679™-2020. In a flow battery, the electrolyte is stored in one or two tanks and pumps are utilized to deliver the electrolyte through the cells in order to recharge or discharge the battery. (When two electrolytes are used, they are often referred to as negolyte and posolyte). The outline of IEEE Std 1679-2020… read more is followed in this document, with tutorial information specific to flow batteries provided as appropriate. Examples of tutorial information include technology descriptions, operating parameters, failure modes, safety information, battery architecture, and qualification and application considerations. This document does not cover batteries that do not employ flowing electrolyte systems. Sizing, installation, maintenance, and testing techniques are beyond the scope of this document except insofar as they may influence the evaluation of a flow battery for its intended application. read less

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Unmanned aircraft systems (UAS) in combination with light detection and ranging (LiDAR) are effective in digital elevation model (DEM) generation and land use survey, which are important for transmission lines design. This standard specifies the operational requirements for the workflow, procedure, technical parameters, and quality control of the UAS using LiDAR for above 110 kV overhead transmission line survey and design.

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This standard specifies maintenance procedures of the multi-rotor unmanned aircraft systems (UAS) used for power grid inspection.

定价： 元 加购物车