International diffusion of energy technology : report of a workshop held on June 2-3, 1976, at Dedham, Massachusetts

Prepared in association with Center for International Studies, Massachusetts Institute of TechnologyGrant #E(49-18)-2295, Task Order No.2, from the Energy Research and Development Administratio

NEEMIS overview : New England Energy Management Information System

Prepared in association with the Alfred P. Sloan School of Managemen

Papers presented at a Conference on Energy Prices, Inflation and Economic Activity, November 7-9, 1979.

Sponsored by the M.I.T. Center for Energy Policy Research

Information systems to provide leading indicators of energy sufficiency : a report to the Federal Energy Administration

Final working paper, submitted to Office of Data Policy, Federal Energy Administration in connection with A Study of information systems to provide leading indicators of energy sufficiency, (FEA Contract no. 14-01-001-2040)

Government support for the commercialization of new energy technologies : an analysis and exploration of the issues

This report examines the issues associated with government programs proposed for the "commercialization" of new energy technologies; these programs are intended to hasten the pace at which target technologies are adopted by the private sector. The "commercial demonstration" is the principal tool used in these programs. Most previous government interventions in support of technological change have focussed on R&D and left to the private sector the decision as to adoption for commercial utilization; thus there is relatively little in the way of analysis or experience which bears direct application. The analysis is divided into four sections. First, the role of R,D&D within the structure of the national energy goals and policies is examined. The issue or "prices versus gaps" is described as a crucial difference of viewpoint concerning the role of the government in the future of the energy system. Second, the process of technological change as it occurs with respect to energy technologies is then examined for possible sources of misaligment or social and private incentives. The process is described as a series of investments. Third, correction of these sources of misalignment then becomes the goal of commercial demonstration programs as this goal and the means for attaining it are explored. Government-supported commercialization may be viewed as a subsidy to the introduction stage of the process; the circumstances under which such subsidies are likely to affect the success of the subsequent diffusion stage are addressed. The discussion then turns to the political, legal, and institutional problems. Finally, methods for the evaluation and planning of commercial demonstration programs are analyzed. The critical areas of ignorance are highlighted and comprise a research agenda for improved analytical techniques to support decisions in this area.United States Energy Research and Development Administration under Contract no. E(49-18) 2295, Task Order

Quantitative UV spectroscopy of early O stars on the Magellanic Clouds The determination of the stellar metallicities

UV spectra of 4 O-stars in the Magellanic Clouds obtained with the Faint Object Spectrograph of the Hubble Space Telescope are analyzed with respect to metallicity. With the stellar parameters T_e_f_f, log g, R_*, and the mass loss rates M known from optical analyses the metal abundances including iron group elements are derived in two steps. First, hydrodynamic radiation driven wind NLTE models with metallicity as a free parameter are constructed to fit the observed wind momentum rate and, thus, yield a dynamical metallicity. Then, synthetic spectra are computed for different metal abundances and compared to the observed spectra to obtain a spectroscopic metallicity. In general, the results obtained from both methods agree. For the two stars in the Small Magellanic Cloud (NGC 346 3, O3III(f*) and AV 243, O6V) metallicities of log z/z_sun=-0.7 and -0.8, respectively, are found. The O3 star shows evidence for CNO-cycled matter in its atmosphere. The metallicity of the two stars in the Large Cloud (Sk-68 137, O3III(f*) and Sk-67 166, O4If"+) are constrained to log z/z_sun=-0.3 and -0.1. Because of saturation effects in the cores of the pseudophotospheric metal lines the determination of the LMC metallicity is less reliable. (orig.)Available from TIB Hannover: RR 4697(1052) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEDEGerman