1,850 research outputs found
OPTION WEALTH AND BEQUEST VALUES: THE VALUE OF PROTECTING FUTURE GENERATIONS FROM THE HEALTH RISKS OF NUCLEAR WASTE STORAGE
We devise a simple model of intergenerational altruism under uncertainty. We present an estimable form of the model that relies on a few, plausible, assumptions. We apply the model to data collected in a survey of Southern Nevadans concerning the proposed Yucca Mountain Nuclear Waste Repository in Nye County, NV. We find strong evidence of a bequest motive. Approximately one third of the option wealth lost by households near the repository can be attributed to costs to future generations.Resource /Energy Economics and Policy,
Computer programs for shielding problems in manned space vehicles
Computer programs for shielding problems in manned space vehicles - proton penetration code
The Hooking Cow Blues
https://digitalcommons.library.umaine.edu/mmb-vp/4218/thumbnail.jp
Potential Arkansas and White Rivers water available for diversion to the Grand Prairie
At the present time. the rate of groundwater use in the Grand Prairie region of Arkansas exceeds natural replenishment of the underlying aquifer. Most of the groundwater is used for agricultural production. [f current agricultural water needs of the region are to be satisfied under sustained yield conditions. supplemental surface water will be required. The objective of this study is to assess the viability of the Arkansas and White Rivers as sources of supplemental water for meeting water needs in excess of those which can be met with groundwater
Remote sensing of vigor loss in conifers due to dwarf mistletoe
The initial operation of a multiband/multidate tower-tramway test site in northeastern Minnesota for the development of specifications for subsequent multiband aerial photography of more extensive study areas was completed. Multiband/multidate configurations suggested by the tower-tramway studies were and will be flown with local equipment over the Togo test site. This site was photographed by the NASA RB57F aircraft in August and September 1971. It appears that, of all the film/filter combinations attempted to date (including optical recombining of several spectral band images via photo enhancement techniques), Ektachrome infrared film with a Wratten 12 filter is the best for detecting dwarf mistletoe, and other tree diseases as well. Using this film/filter combination, infection centers are easily detectable even on the smallest photo scale (1:100,000) obtained on the Togo site
Dynamics of gas bubbles in an oscillating pressure field Annual report, Jul. 1965 - Aug. 1966
Gas bubble dynamics in oscillating pressure fiel
A guide for performing system safety analysis
A general guide is presented for performing system safety analyses of hardware, software, operations and human elements of an aerospace program. The guide describes a progression of activities that can be effectively applied to identify hazards to personnel and equipment during all periods of system development. The general process of performing safety analyses is described; setting forth in a logical order the information and data requirements, the analytical steps, and the results. These analyses are the technical basis of a system safety program. Although the guidance established by this document cannot replace human experience and judgement, it does provide a methodical approach to the identification of hazards and evaluation of risks to the system
Crystallization dynamics of a single layer complex plasma
We report a series of complex (dusty) plasma experiments, aimed at the study
of the detailed time evolution of the re-crystallisation process following a
rapid quench of a two dimensional dust liquid. The experiments were accompanied
by large-scale (million particle) molecular dynamics simulations, assuming
Yukawa type inter-particle interaction. Both experiment and simulation show a
(power law) dependence of the linear crystallite domain size
as measured by the bond-order correlation length, translational correlation
length, dislocation (defect) density, and a direct size measurement algorithm.
The results show two stages of order formation: on short time-scales individual
particle motion dominates; this is a fast process characterized by
. At longer time-scales, small crystallites undergo
collective rearrangement, merging into bigger ones, resulting in a smaller
exponent .Comment: 4 pages, 3 figures. Submitted to PR
Sin nombre virus in deer mice captured inside homes, southwestern Montana.
From 1996 through 1999, 35 deer mice (Peromyscus maniculatus) were captured in 25 urban and suburban homes in southwestern Montana. Mice were captured throughout the year except for January; seven mice (20%) from seven (28%) of the homes were seropositive for Sin Nombre virus. The infected mice were mostly adult males captured in the spring and fall
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