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  Partner: UNT Libraries Government Documents Department
 Decade: 1990-1999
31st Annual Report

31st Annual Report

Date: January 1990
Creator: United States. Advisory Commission on Intergovernmental Relations.
Description: The ACIR Library is composed of publications that study the interactions between different levels of government. This document is an annual report.
Contributing Partner: UNT Libraries Government Documents Department
Affordable Spacecraft: Design and Launch Alternatives

Affordable Spacecraft: Design and Launch Alternatives

Date: January 1990
Creator: United States. Congress. Office of Technology Assessment.
Description: This background paper examines several proposals for reducing the costs of spacecraft and other payloads and describes launch systems for implementing them. It is one of a series of products of a broad assessment of space transportation technologies undertaken by OTA at the request of the Senate Committee on Commerce, Science, and Transportation, and the House Committee on Science, Space, and Technology.
Contributing Partner: UNT Libraries Government Documents Department
Alaskan Water for California?: The Subsea Pipeline Option

Alaskan Water for California?: The Subsea Pipeline Option

Date: January 1990
Creator: United States. Congress. Office of Technology Assessment.
Description: This background paper focuses on one technological option for increasing the supply of fresh water to the Southwest-that of building a freshwater subsea pipeline to transport water from Alaska to California. Originally a suggestion by Governor Walter Hickel of Alaska, the proposal has recently attracted attention in southern California.
Contributing Partner: UNT Libraries Government Documents Department
Application of geophysical methods for fracture characterization

Application of geophysical methods for fracture characterization

Date: January 1, 1990
Creator: Lee, K.H.; Majer, E.L.; McEvilly, T.V. & Morrison, H.F.
Description: One of the most crucial needs in the design and implementation of an underground waste isolation facility is a reliable method for the detection and characterization of fractures in zones away from boreholes or subsurface workings. Geophysical methods may represent a solution to this problem. If fractures represent anomalies in the elastic properties or conductive properties of the rocks, then the seismic and electrical techniques may be useful in detecting and characterizing fracture properties. 7 refs., 3 figs.
Contributing Partner: UNT Libraries Government Documents Department
The application of vertical seismic profiling and cross-hole tomographic imaging for fracture characterization at Yucca Mountain

The application of vertical seismic profiling and cross-hole tomographic imaging for fracture characterization at Yucca Mountain

Date: January 1, 1990
Creator: Majer, E.L.; Peterson, J.E.; Tura, M.A. & McEvilly, T.V.
Description: In order to obtain the necessary characterization for the storage of nuclear waste, much higher resolution of the features likely to affect the transport of radionuclides will be required than is normally achieved in conventional surface seismic reflection used in the exploration and characterization of petroleum and geothermal resources. Because fractures represent a significant mechanical anomaly seismic methods using are being investigated as a means to image and characterize the subsurface. Because of inherent limitations in applying the seismic methods solely from the surface, state-of-the-art borehole methods are being investigated to provide high resolution definition within the repository block. Therefore, Vertical Seismic Profiling (VSP) and cross-hole methods are being developed to obtain maximum resolution of the features that will possible affect the transport of fluids. Presented here will be the methods being developed, the strategy being pursued, and the rational for using VSP and crosshole methods at Yucca Mountain. The approach is intended to be an integrated method involving improvements in data acquisition, processing, and interpretation as well as improvements in the fundamental understanding of seismic wave propagation in fractured rock. 33 refs., 4 figs.
Contributing Partner: UNT Libraries Government Documents Department
An Asymmetric B-Meson Factory at PEP

An Asymmetric B-Meson Factory at PEP

Date: January 1, 1990
Creator: Garren, A.A.; Chattopadhyay, S.; Chin, Y.; Oddone, P.J.; Zisman, Michael S.; Donald, M. et al.
Description: A preliminary design for a B-factory has been made using asymmetric collisions between positrons in the PEP storage ring and electrons in a new, low-energy ring. The design utilizes small-aperture, permanent-magnet quadrupoles close to the interaction point (IP). Optimization of optical and beam parameters at the IP will be discussed, as well as the lattice design of the interaction region and of the rings.
Contributing Partner: UNT Libraries Government Documents Department
Building of a conceptual model at UE25-c hole complex

Building of a conceptual model at UE25-c hole complex

Date: January 1, 1990
Creator: Karasaki, K.; Landsfeld, M. & Grossenbacher, K.
Description: US Geological Survey and Lawrence Berkeley Laboratory are attempting to construct a conceptual model of the UE25-c hole complex. An interdisciplinary approach is discussed where all the available data are integrated. Site geology, borehole geophysics and hydraulic test results at UE25-c hole complex suggest that groundwater flow may be controlled by fractures and faults. Significant clusters of fractures in the C-holes are perpendicular to bedding and may be cooling cracks or may be tectonically induced. Unresolved evidence indicates that a fault may intersect the C-holes. For these reasons a porous medium approximation of the rock in the saturated zone at the scale of a well test may be inappropriate. Instead, an Equivalent Discontinuum Model is proposed to model the UE25-c complex hydrology. EDM does not reproduce every geometrical detail of the real system, but instead, attempts to reproduce the observed behavior of the fracture system while preserving the inherent discontinuous nature of the system. 6 refs., 7 figs.
Contributing Partner: UNT Libraries Government Documents Department
Changing public attitudes on governments and taxes, 1990

Changing public attitudes on governments and taxes, 1990

Date: 1990
Creator: United States. Advisory Commission on Intergovernmental Relations.
Description: The ACIR Library is composed of publications that study the interactions between different levels of government. This document addresses changing public attitudes on governments and taxes.
Contributing Partner: UNT Libraries Government Documents Department
Columbia River Basin Fish and Wildlife Program Annual Implementation Work Plan for Fiscal Year 1990.

Columbia River Basin Fish and Wildlife Program Annual Implementation Work Plan for Fiscal Year 1990.

Date: January 1990
Creator: United States. Bonneville Power Administration.
Description: The Columbia River Basin Fish and Wildlife Program (Program) was developed by the Northwest Power Planning Council (Council) in accordance with Public Law 96-501, the Pacific Northwest Electric Power Planning and Conservation Act (Act). The purpose of the Program is to guide the Bonneville Power Administration (BPA) and other Federal agencies in carrying out their responsibilities to protect, mitigate, and enhance fish and wildlife of the Columbia River Basin. The Act explicitly gives BPA the authority and responsibility to use the BPA fund for these ends, to the extent that fish and wildlife are affected by the development and operation of hydroelectric generation in the Columbia River Basin. This document presents BPA's plans for implementing the Program during Fiscal Year (FY) 1990. The Columbia River Basin Fish and Wildlife Program Annual Implementation Work Plan (AIWP) reflects the primary goals of the Council's Action Plan (Section 1400 of the Program): to provide a solid, timely, and focused basis for budgeting and planning. In addition, the AIWP provides a means to judge progress and the success of Program implementation. The FY 1990 AIWP also follows the outline developed by the Policy Review Group (PRG) during Step 1 of initial cycle of the ...
Contributing Partner: UNT Libraries Government Documents Department
Combined analytical/numerical approaches to solving fluid flow problems in the unsaturated zone at Yucca Mountain

Combined analytical/numerical approaches to solving fluid flow problems in the unsaturated zone at Yucca Mountain

Date: January 1, 1990
Creator: Zimmerman, R.W. & Bodvarsson, G.S.
Description: Various analytical and numerical approaches are presented for the study of unsaturated flow processes in the vicinity of the Yucca Mountain, Nevada, the proposed site of an underground radioactive waste repository. Approximate analytical methods are used to study absorption of water from a saturated fracture into the adjacent rock. These solutions are incorporated into a numerical simulator as fracture/matrix interaction terms to treat problems such as flow along a fracture with transverse leakage into the matrix. An automatic fracture/matrix mesh generator is described; it allows for more efficient mesh generation for fractured/porous media, and consequently leads to large savings in computational time and cost. 21 refs., 6 figs.
Contributing Partner: UNT Libraries Government Documents Department
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