Seeding criterion for nonequilibrium magnetohydrodynamic generators

Criterion for magnetohydrodynamic generator seedin

Conduction Theories in Gaseous Plasmas and Solids: Final Report, 1961

The theoretical studies on the transport proper ties of ionized media performed have been based entirely on the effective particle approach and have ignored all correlation effects as well as quantum corrections. Within this approximation several specific problems have been treated: the anomalous skin effect, the magneto-acoustic effect, magneto-galvanic resistance, and certain aspects of microwave diagnostics. The first two effects are of considerable interest in metals and semi-metals and were studied and extended so as to apply to plasmas. The microwave diagnostic techniques developed here were originally aimed at the interpretation of a specific problem in plasma physics but are of sufficient generality to treat a class of problems involving magneto hydrodynamic fluids, semi-metals, as well as semi-conductors

Uncharted Territory: UVM Extension Data Visualization Needs Assessment

Graphical displays are more effective than textual information at summarizing large volumes of data, improving retention of information, and in persuading behavior change. UVM Extension uses data visualizations every day in its mission to transform academic research into practical recommendations for Vermonters, in topics ranging from nutrition to agriculture. But how are these graphics generated across an organization with more than 100 employees? How can data visualization help advance goals which range from analyzing research to demonstrating community impact? This paper presents the results of a Master’s project study into what tools and skills are already being used at UVM Extension, and what could be done better. For this study, data were collected through an organization-wide survey, two interviews, and two case studies. Results suggest that numerous software packages are being utilized across the organization to design graphics, but they are not administered consistently or leveraged efficiently. In general, staff and faculty lack confidence in designing their own graphics, are unfamiliar with best practices, and are unsure where to go for help. Ultimately, this study reveals that UVM Extension could: 1) save costs by consolidating software accounts, and 2) improve quality by increasing staff capacity, establishing internal workflow protocols, and centralizing high-priority projects. By incorporating graphic design staff into the first steps of project planning, UVM Extension would ultimately elevate the quality of its storytelling

Book Review of Place-Based Education in the Global Age: Local Diversity David Gruenewald & Greg Smith (Eds.), NY: Lawrence Er Iba um

Book Review of Place-Based Education in the Global Age: Local Diversity David Gruenewald & Greg Smith (Eds.), NY: Lawrence ErIbau

Services extended to unmarried mothers by the Boston Metropolitan Chapter of Red Cross

Thesis (M.S.)--Boston University, 1945. This item was digitized by the Internet Archive

The American Religious Landscape and the 2004 Presidential Vote: Increased Polarization

Presents findings from a post-election survey conducted in November and December 2004. Explores the polarization between different religions, as well as within the major religious traditions

NASA aviation safety reporting system

The origins and development of the NASA Aviation Safety Reporting System (ASRS) are briefly reviewed. The results of the first quarter's activity are summarized and discussed. Examples are given of bulletins describing potential air safety hazards, and the disposition of these bulletins. During the first quarter of operation, the ASRS received 1464 reports; 1407 provided data relevant to air safety. All reports are being processed for entry into the ASRS data base. During the reporting period, 130 alert bulletins describing possible problems in the aviation system were generated and disseminated. Responses were received from FAA and others regarding 108 of the alert bulletins. Action was being taken with respect to 70 of the 108 responses received. Further studies are planned of a number of areas, including human factors problems related to automation of the ground and airborne portions of the national aviation system

Energy and Cost Analysis of Commercial HVAC Equipment: Offices and Hospitals

A study was made to determine annual energy use in several typical heating, ventilating, and air conditioning (HVAC) systems for two commercial building types: offices and hospitals. The study was part of a program at Oak Ridge National Laboratory to develop a model to predict energy use in the commercial sector of the United States. This study\u27s objective is to define relationships between energy use and capital cost for commercial HVAC systems. The NECAP computer program was used to analyze the HVAC systems\u27 energy use. Both pre-embargo and current energy efficient HVAC system designs were modeled with several energy conservation options considered for each. These options included economizer cycles, exhaust air heat recovery, improved controls, double bundle exchangers, improved equipment efficiencies, partial solar heating, an Annual Cycle Energy System (ACES) heat storage system and a total energy system (onsite electricity generation with waste heat recovery). Building models used correspond to national averages for floor space and construction. Results show that use of exhaust air heat recovery in the original design of a building can provide savings in both first cost and energy use. Savings depend upon weather (predominant savings are in heating energy) and ventilation rates. Results also show that use of electric resistance heat approximately doubles primary energy use when compared to a similar system using gas or oil heat. The use of gas for cooling can increase primary energy use by 40% over a similar system using electricity for cooling. The base office building had a dual duct system with gas heat and electric cooling. Annual HVAC energy use was 326,000 Btu per square foot (primary, or as mined, energy) with approximately 2.3 Btu required to meet each Btu of space conditioning demand. Analysis showed that heating consumed 53% of the energy, cooling 37%, and fans 10%. By retrofitting this system with exhaust air heat recovery, improved controls and a double bundle exchanger, a 49% decrease in energy use could be obtained with a payout of less than three years. If an energy efficient variable volume ducting system was used in the original construction, a 44% reduction could be achieved with a payout of less than one year. Similar results were found for the base hospital with a single zone/fan coil system using gas heat and electric cooling. Annual HVAC energy use was 423,000 Btu per square foot with approximately 1.8 Btu required to meet each Btu of demand. Analysis showed that heating consumed 57%, cooling 36%, and fans 7%. By retrofitting with exhaust air heat recovery, a 14% decrease in energy use could be achieved with a payout of less than four years. Energy use estimates developed in this study are consistent with national energy use averages. The base office energy use was 32% higher than the national average and the best energy conservation case was 55% lower. The base hospital energy use was 12% higher than the national average and the best energy conservation case was 47% lower. One reason for the higher energy use for the base cases in this study was the exclusion of variations in operating strategies (such as night setback and reduced ventilation during non-occupied hours)