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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.

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At least 19 records
All sourcesNASA NTRSDOE OSTI
DOE OSTI2015

The study on knowledge transferring incentive for information system requirement development

Information system requirement development is a process of users’ knowledge sharing and transferring. However the tacit requirements developing is a main problem during requirement development process, for the reason of difficult to encoding, express, and communicate. Knowledge fusion and corporate effort is needed to finding tacit requirements. Under this background, our paper try to find out the rule of effort dynamic evolutionary of software developer and user by building an evolutionary game model on the condition of incentive system. And in addition this paper provides an in depth discussion at the end of this paper.

97 MATHEMATICS AND COMPUTING↗
DOE OSTI2015

IDC Re-Engineering Phase 2 System Requirements Document V1.3.

This System Requirements Document (SRD) defines waveform data processing requirements for the International Data Centre (IDC) of the Comprehensive Nuclear Test Ban Treaty Organization (CTBTO). The IDC applies, on a routine basis, automatic processing methods and interactive analysis to raw International Monitoring System (IMS) data in order to produce, archive, and distribute standard IDC products on behalf of all States Parties. The routine processing includes characterization of events with the objective of screening out events considered to be consistent with natural phenomena or non-nuclear, man-made phenomena. This document does not address requirements concerning acquisition, processing and analysis of radionuclide data but includes requirements for the dissemination of radionuclide data and products.

98 NUCLEAR DISARMAMENT, SAFEGUARDS, AND PHYSICAL P↗
DOE OSTI2017

IDC Re-Engineering Phase 2 System Requirements Document Version 1.4

This System Requirements Document (SRD) defines waveform data processing requirements for the International Data Centre (IDC) of the Comprehensive Nuclear Test Ban Treaty Organization (CTBTO). The IDC applies, on a routine basis, automatic processing methods and interactive analysis to raw International Monitoring System (IMS) data in order to produce, archive, and distribute standard IDC products on behalf of all States Parties. The routine processing includes characterization of events with the objective of screening out events considered to be consistent with natural phenomena or non-nuclear, man-made phenomena. This document does not address requirements concerning acquisition, processing and analysis of radionuclide data, but includes requirements for the dissemination of radionuclide data and products.

97 MATHEMATICS AND COMPUTING↗
DOE OSTI2020

Electron Ion Collider Machine Protection System: Requirements for an Electron Storage Ring abort system

The Electron Ion Collider (EIC) accelerator complex includes multiple high-energy high-power accelerators [1]. Operation of such a complex is associated with numerous hazards and risks of possible damage to the equipment. The EIC machine protection system (MPS) scope is to protect the components of each accelerator from damage by the beam. The EIC MPS design, commissioning and operation is closely interconnected with the protection of various accelerator subsystems, such as RF-system, cryogenics, vacuum system etc. Yet, the primary goal of the MPS is to protect the EIC accelerators from the possible damage caused by electron and proton beams.

43 PARTICLE ACCELERATORS↗
DOE OSTI2020

Gamma Equipment System Requirements by Application

This document outlines a set of requirements for gamma sensitive systems applied to three different applications: (1) homeland security (search and identification); (2) in-situ quantification; and (3) quantification in a material characterization laboratory. These three applications represent a range of activities that a country might use for locating, identifying, and quantifying radioactive material. These applications require increasing accuracy and system advancements, and skill levels. This document considers systems with various detector types and are characterized by their energy resolution: (1) low resolution (e.g., NaI(Tl) scintillation) and (2) higher resolution (e.g., high-purity germanium [HPGe] solid state) systems. The higher resolution systems also include cadmium zinc telluride (CZT) and only mechanically cooled HPGe systems are considered. These detectors and their associated acquisition hardware and analysis software afford a broad range of capabilities with corresponding ranges of complexity, maintainability, and cost. Ultimately, the equipment must meet the measurement goals of the application, and compliance with a given list of hardware specifications does not in itself guarantee meeting those goals. Examples of typical performance objectives for international safeguards applications are documented in International Target Values 2010 for Measurement Uncertainties in Safeguarding Nuclear Materials (IAEA, STR-368, November 2010). Selection of the detector type best suited to a specific application is often a compromise between “state of the art” or best available option and what is practical.

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND ↗
DOE OSTI2015

RF System Requirements for a Medium-Energy Electron-Ion Collider (MEIC) at JLab

JLab is studying options for a medium energy electron-ion collider that could fit on the JLab site and use CEBAF as a full-energy electron injector. A new ion source, linac and booster would be required, together with collider storage rings for the ions and electrons. In order to achieve the maximum luminosity these will be high-current storage rings with many bunches. We present the high-level RF system requirements for the storage rings, ion booster ring and high-energy ion beam cooling system, and describe the technology options under consideration to meet them. We also present options for staging that might reduce the initial capital cost while providing a smooth upgrade path to a higher final energy. The technologies under consideration may also be useful for other proposed storage ring colliders or ultimate light sources.

43 PARTICLE ACCELERATORS↗
DOE OSTI2018

Nuclear Safeguards Reporting System Requirements Specification

States enter into safeguards agreements with the International Atomic Energy Agency (IAEA) to fulfill their nuclear non-proliferation commitments. Each nonnuclear-weapon State party to the Treaty on the Non-Proliferation of Nuclear Weapons (NPT) [1] is required, pursuant to Article III, to conclude a comprehensive safeguards agreement (CSA) with the IAEA. This document aims to provide information regarding the system requirements of software designed for comprehensive safeguards reporting.

98 NUCLEAR DISARMAMENT, SAFEGUARDS, AND PHYSICAL P↗
DOE OSTI2015

Metal hydride based thermal energy storage system requirements for high performance concentrating solar power plants

High temperature concentrating solar power plants require suitable thermal energy storage systems to produce electric power efficiently. Thermochemical energy storage based on metal hydrides represents a very appealing prospect for low cost and high efficient solar storage systems. The objective of the paper is to assess the properties required by the metal hydride systems to achieve the U.S. Department of Energy’s SunShot techno-economic targets. A simplified model has been developed to evaluate the cost and the exergetic efficiency of hydridebased storage systems. Results demonstrate that metal hydride materials, operating at temperatures higher than 650 °C, with reaction enthalpy on the order of 95-110 kJ/molH 2 , raw material cost on the order of 1.4-2 $/kg, weight capacities on the order of 3-4% and operating pressures on the order of tens of bars have the potential to closely approach the targets. Selected sensitivity analyses have also been carried out showing that the raw material cost, the material weight capacity and the metal hydride reaction enthalpy are the properties that strongly affect the performance of the storage system.

08 HYDROGEN↗
DOE OSTI2019

System Requirements Development for Assembly Alignment at DARHT

Lawrence Livermore National Laboratory conducts a few experiments at the DARHT facility at Los Alamos National Laboratory in New Mexico each year and in order to align to both X-ray beams for imaging, the experimental assembly must be adjusted to the correct spot. The current system to align the position of the assembly requires technicians to lift the assembly out with a crane and adjust the position. This process of lifting the assembly out, adjusting, and lowering back in can add additional hours and even days onto an already limited schedule, which can be very costly as well. The goal of this document is to develop system requirements and a concept of operations for a new system to position and adjust the experimental assembly within DARHT in order to save time and money.

42 ENGINEERING↗
DOE OSTI2015

Guidelines for Implementing Advanced Distribution Management Systems: Requirements for DMS Integration with DERMS and Microgrids

This guideline focuses on the integration of DMS with DERMS and microgrids connected to the distribution grid by defining generic and fundamental design and implementation principles and strategies. It starts by addressing the current status, objectives, and core functionalities of each system, and then discusses the new challenges and the common principles of DMS design and implementation for integration with DERMS and microgrids to realize enhanced grid operation reliability and quality power delivery to consumers while also achieving the maximum energy economics from the DER and microgrid connections.

24 POWER TRANSMISSION AND DISTRIBUTION↗
DOE OSTI2019

System Requirements for the Implementation of a Fused Silica Debris Shield

The National Ignition Facility (NIF) is the world’s largest and most energetic laser. It consists of 192 individual laser beams that, when first fired from the master oscillator room, are no more energetic than a typical laser pointer. After the initial firing, the lasers are sent through a preamplifier where the energy is increased by a factor of 10 billion. The laser light is amplified even further in the NIF laser bays by “stretching”each individual laser to a cross sectional area of approximately one square foot and passing them through the NIF power amplifiers, then multiple times through the NIF main amplifiers inside the NIF Laser bays. The laser beams make one final pass through the through the power amplifiers before they are reflected out of the laser bays.

42 ENGINEERING↗