Proceedings of the conference on research for the development of geothermal energy resources held in Pasadena, California, September 23--25, 1974 (open access)

Proceedings of the conference on research for the development of geothermal energy resources held in Pasadena, California, September 23--25, 1974

None
Date: December 31, 1974
Creator: unknown
Object Type: Article
System: The UNT Digital Library
Base Input Naval Base Ventura County, CA. NAVAIR Pt. Mugu (open access)

Base Input Naval Base Ventura County, CA. NAVAIR Pt. Mugu

Base Input, Naval Base Ventura County, CA. NAVAIR Pt. Mugu. Electronic Warfare Center of Excellence, Pt. Mugu briefing to BRAC Commission staff, July 2005.
Date: August 31, 2005
Creator: unknown
Object Type: Text
System: The UNT Digital Library
Community Briefing Book - Naval Air Weapons Station China Lake (open access)

Community Briefing Book - Naval Air Weapons Station China Lake

Presentation to BRAC Commission --Ridgecrest and the Indian Wells valley "Positioned, Prepared and Poised for Growth - Part 1 of 2
Date: July 31, 2005
Creator: unknown
Object Type: Book
System: The UNT Digital Library
Community Briefing Book - Naval Air Weapons Station China Lake (open access)

Community Briefing Book - Naval Air Weapons Station China Lake

Presentation to BRAC Commission --Ridgecrest and the Indian Wells valley "Positioned, Prepared and Poised for Growth - Part 2 of 2
Date: July 31, 2005
Creator: unknown
Object Type: Book
System: The UNT Digital Library
Development of the Hanford Slave Manipulator for Use in the Multicurie Cells at Hanford (open access)

Development of the Hanford Slave Manipulator for Use in the Multicurie Cells at Hanford

Introduction: "During the early planning of the multicurie cells at Hanford it was decided that a slave type manipulator would be necessary to perform the experiments for which the cells were being designed. The design required steel roofs for installation through a port hole in the face. Technical Services Equipment Development began developing the proposed manipulator in January 1951 by making a study of those existing at that tune. None met the requirements which had been established; therefore, the design of a special manipulator was started immediately."
Date: October 31, 1952
Creator: Field, Richard E. & Gifford, John F.
Object Type: Report
System: The UNT Digital Library
The study of redox-active inorganic substituents of cellulase enzymes. Quarterly report, 25 August--25 November 1993 (open access)

The study of redox-active inorganic substituents of cellulase enzymes. Quarterly report, 25 August--25 November 1993

Cellulase (CBHI) was modified by bis (2,2- bipyridine) ruthenium (II) and the modified enzyme was assayed for cellulase activity using p- nitrophenyl beta-D-cellobioside as substrate. Absorption spectroscopy of native and modified CBHI was also conducted.
Date: December 31, 1993
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Launch vehicle integration requirements for SP-100 (open access)

Launch vehicle integration requirements for SP-100

SP-100 is the designation for a nuclear reactor-based power plant being developed for both civil and military missions beginning in the 1990s for such potential space applications as communication satellites, space radar, electric propulsion and space stations. Typically, a system using the SP-100 along with a selected upper stage system would be launched by the National Space Transportation System (NSTS) Space Shuttle System into a near-earth orbit, deployed, and through upper stage propulsion burn(s) be inserted/transferred to its mission orbit. The nature of the advanced design SP-100 gives rise to a set of issues that require special attention to assure that payloads using this power plant are physically and functionally compatible with the NSTS and meet the safety requirements thereof. The purpose of this document is to define and present the requirements and interface provisions that, when satisfied, will ensure technical compability between SP-100 systems and the NSTS.
Date: January 31, 1984
Creator: Shaw, L. T. Jr. & Womack, J. R.
Object Type: Report
System: The UNT Digital Library
Surfactant studies for bench-scale operation. Final technical progress report, July 1, 1992--March 31, 1994 (open access)

Surfactant studies for bench-scale operation. Final technical progress report, July 1, 1992--March 31, 1994

The present work effort relates to an investigation of surfactant-assisted coal liquefaction with the objective of quantifying the enhancement in overall coal conversions and the product quality. Based on the results of a Phase 1 preliminary study on the effect of several surfactants on coal liquefaction, sodium lignosulfonate was chosen as the surfactant for a detailed parametric study to be conducted at JPL using a batch autoclave reactor. These tests primarily related to thermal liquefaction of coal. The results of JPL autoclave test runs showed an increase in overall conversions from 5 to 15% due to surfactant addition over the base case of coal alone. A continuous-flow bench scale coal liquefaction process run was conducted over a 5-day period at Hydrocarbon Research Incorporated (HRI). This test showed that the surfactant is suitable for an industrial continuous recycle process, and does not interfere with the supported catalyst. After the bench scale test, a series of autoclave runs were conducted with coprocessing the surfactant and the Ni-Mo catalyst. These experiments showed that high conversions and product quality can be maintained at milder processing conditions. Based on results of the autoclave test runs, the overall product values were obtained for two stage reactors …
Date: March 31, 1994
Creator: Hickey, G. S. & Sharma, P. K.
Object Type: Report
System: The UNT Digital Library
Hydrogeochemical and Stream Sediment Detailed Geochemical Survey for Sonora Pass, California (open access)

Hydrogeochemical and Stream Sediment Detailed Geochemical Survey for Sonora Pass, California

The following report presents results of the Sonora Pass, California detailed geochemical survey. Field and laboratory data are presented for 15 groundwater and 701 stream sediment samples.
Date: July 31, 1980
Creator: Butz, T. R.; French, J. H.; Bard, C. S.; Leimer, H. W.; Helgerson, R. N.; Grimes, J. G. et al.
Object Type: Report
System: The UNT Digital Library
A 2D electrostatic PIC code for the Mark III Hypercube (open access)

A 2D electrostatic PIC code for the Mark III Hypercube

We have implemented a 2D electrostastic plasma particle in cell (PIC) simulation code on the Caltech/JPL Mark IIIfp Hypercube. The code simulates plasma effects by evolving in time the trajectories of thousands to millions of charged particles subject to their self-consistent fields. Each particle`s position and velocity is advanced in time using a leap frog method for integrating Newton`s equations of motion in electric and magnetic fields. The electric field due to these moving charged particles is calculated on a spatial grid at each time by solving Poisson`s equation in Fourier space. These two tasks represent the largest part of the computation. To obtain efficient operation on a distributed memory parallel computer, we are using the General Concurrent PIC (GCPIC) algorithm previously developed for a 1D parallel PIC code.
Date: December 31, 1990
Creator: Ferraro, R. D.; Liewer, P. C. & Decyk, V. K.
Object Type: Article
System: The UNT Digital Library
Dynamic load balancing in a concurrent plasma PIC code on the JPL/Caltech Mark III hypercube (open access)

Dynamic load balancing in a concurrent plasma PIC code on the JPL/Caltech Mark III hypercube

Dynamic load balancing has been implemented in a concurrent one-dimensional electromagnetic plasma particle-in-cell (PIC) simulation code using a method which adds very little overhead to the parallel code. In PIC codes, the orbits of many interacting plasma electrons and ions are followed as an initial value problem as the particles move in electromagnetic fields calculated self-consistently from the particle motions. The code was implemented using the GCPIC algorithm in which the particles are divided among processors by partitioning the spatial domain of the simulation. The problem is load-balanced by partitioning the spatial domain so that each partition has approximately the same number of particles. During the simulation, the partitions are dynamically recreated as the spatial distribution of the particles changes in order to maintain processor load balance.
Date: December 31, 1990
Creator: Liewer, P. C.; Leaver, E. W.; Decyk, V. K. & Dawson, J. M.
Object Type: Article
System: The UNT Digital Library
Advances in high temperature components for AMTEC (alkali metal thermal-to-electric converter) (open access)

Advances in high temperature components for AMTEC (alkali metal thermal-to-electric converter)

Long lifetimes are required for AMTEC (or sodium heat engine) components for aerospace and terrestrial applications, and the high heat input temperature as well as the alkali metal liquid and vapor environment places unusual demands on the materials used to construct AMTEC devices. In addition, it is important to maximize device efficiency and power density, while maintaining a long life capability. In addition to the electrode, which must provide both efficient electrode kinetics, transport of the alkali metal, and low electrical resistance, other high temperature components of the cell face equally demanding requirements. The beta{double_prime} alumina solid electrolyte (BASE), the seal between the BASE ceramic and its metallic transition to the hot alkali metal (liquid or vapor) source, and metallic components of the device are exposed to hot liquid alkali metal. Modification of AMTEC components may also be useful in optimizing the device for particular operating conditions. In particular, a potassium AMTEC may be expected to operate more efficiently at lower temperatures.
Date: December 31, 1991
Creator: Williams, R. M.; Jeffries-Nakamura, B.; Underwood, M. L.; Ryan, M. A.; O`Connor, D. & Kikkert, S.
Object Type: Article
System: The UNT Digital Library

Sonora Pass Detail Area: Field Data

Documentation outlining characteristics of field data samples taken in the Sonora Pass detail area.
Date: July 31, 1980
Creator: Butz, T. R.; French, J. H.; Bard, C. S.; Leimer, H. W.; Helgerson, R. N.; Grimes, J. G. et al.
Object Type: Dataset
System: The UNT Digital Library

Sonora Pass Detail Area: Well Water Data

Data gathered at well water sites in the Sonora Pass detail area, including applicable water chemistry measurements (e.g., pH, conductivity, alkalinity), physical measurements (e.g., temperature, well description, scintillometer readings), and elemental analyses.
Date: July 31, 1980
Creator: Butz, T. R.; French, J. H.; Bard, C. S.; Leimer, H. W.; Helgerson, R. N.; Grimes, J. G. et al.
Object Type: Dataset
System: The UNT Digital Library
BRAC 2005 Report to the Base Closure and Realignment Commission: Navy Justification Book (open access)

BRAC 2005 Report to the Base Closure and Realignment Commission: Navy Justification Book

Navy and Marine Corps Reserve Centers - Los Angeles, CA (Disregard Restriction Header and Footer)
Date: May 31, 2005
Creator: United States. Department of Defense.
Object Type: Book
System: The UNT Digital Library
BRAC 2005 Report to the Base Closure and Realignment Commission: Navy Justification Book (open access)

BRAC 2005 Report to the Base Closure and Realignment Commission: Navy Justification Book

Navy and Marine Corps Reserve Centers - Los Angeles, CA, Summary of Scenario Environmental Impacts (Disregard Restriction Header and Footer)
Date: May 31, 2005
Creator: United States. Department of Defense.
Object Type: Book
System: The UNT Digital Library
BRAC 2005 Report to the Base Closure and Realignment Commission: Navy Justification Book (open access)

BRAC 2005 Report to the Base Closure and Realignment Commission: Navy Justification Book

Navy and Marine Corps Reserve Centers - Los Angeles, CA, COBRA Realignment Summary Report
Date: May 31, 2005
Creator: United States. Department of Defense.
Object Type: Book
System: The UNT Digital Library
BRAC 2005 Report to the Base Closure and Realignment Commission: Navy Justification Book (open access)

BRAC 2005 Report to the Base Closure and Realignment Commission: Navy Justification Book

Navy and Marine Corps Reserve Centers - Los Angeles, CA, Economic Impact Report (Disregard Restriction Header and Footer)
Date: May 31, 2005
Creator: United States. Department of Defense.
Object Type: Book
System: The UNT Digital Library
BRAC 2005 Report to the Base Closure and Realignment Commission: Navy Justification Book (open access)

BRAC 2005 Report to the Base Closure and Realignment Commission: Navy Justification Book

Navy and Marine Corps Reserve Centers - Los Angeles, CA, Recommendation for Closure Navy and Marine Corp Reserve Centers
Date: May 31, 2005
Creator: United States. Department of Defense.
Object Type: Book
System: The UNT Digital Library
The Death Valley Expedition: A Biological Survey of Parts of California, Nevada, Arizona, and Utah, Part 2 (open access)

The Death Valley Expedition: A Biological Survey of Parts of California, Nevada, Arizona, and Utah, Part 2

Collection of reports on Death Valley, the bordering region of California, Nevada, Arizona, and Utah. Reports include birds, reptiles and Batrachians, fishes, insects, mollusks, trees and shrubs, cactuses and yuccas, and list of localities in the reports.
Date: May 31, 1893
Creator: Fisher, A. K.; Stejneger, Leonhard; Gilbert, Charles H.; Riley, C. V.; Stearns, R. E. C.; Merriam, C. Hart et al.
Object Type: Report
System: The UNT Digital Library
Final Report: Natural State Models of The Geysers Geothermal System, Sonoma County, California (open access)

Final Report: Natural State Models of The Geysers Geothermal System, Sonoma County, California

Final project report of natural state modeling effort for The Geysers geothermal field, California. Initial models examined the liquid-dominated state of the system, based on geologic constraints and calibrated to match observed whole rock delta-O18 isotope alteration. These models demonstrated that the early system was of generally low permeability (around 10{sup -12} m{sup 2}), with good hydraulic connectivity at depth (along the intrusive contact) and an intact caprock. Later effort in the project was directed at development of a two-phase, supercritical flow simulation package (EOS1sc) to accompany the Tough2 flow simulator. Geysers models made using this package show that ''simmering'', or the transient migration of vapor bubbles through the hydrothermal system, is the dominant transition state as the system progresses to vapor-dominated. Such a system is highly variable in space and time, making the rock record more difficult to interpret, since pressure-temperature indicators likely reflect only local, short duration conditions.
Date: December 31, 2001
Creator: Brikowski, T. H.; Norton, D. L. & Blackwell, D. D.
Object Type: Report
System: The UNT Digital Library

Sonora Pass Detail Area: Sediment Site Data

Data gathered at stream sediment sites in the Sonora Pass detail area, including applicable water chemistry measurements (e.g., pH, conductivity, alkalinity) and elemental analyses.
Date: July 31, 1980
Creator: Butz, T. R.; French, J. H.; Bard, C. S.; Leimer, H. W.; Helgerson, R. N.; Grimes, J. G. et al.
Object Type: Dataset
System: The UNT Digital Library
National Security Commission on Artificial Intelligence: Initial Report (open access)

National Security Commission on Artificial Intelligence: Initial Report

A brief report summarizing the National Security Commission on Artificial Intelligence's activities, meetings, relationships with the U.S. Government, industry, and academia, early substantive assessments, commission staff, and next steps.
Date: July 31, 2019
Creator: National Security Commission on Artificial Intelligence (U.S.)
Object Type: Report
System: The UNT Digital Library
Process for Producing Fibrous Material from Rice-straw (open access)

Process for Producing Fibrous Material from Rice-straw

Patent for a process for producing fibrous material from rice-straw. The process was created to fiberize and use rice straw. Rice straw had little economic value but creating a process for fiberizing it might help to make this resource commercially useful.
Date: July 31, 1917
Creator: Toles, Justin Kay
Object Type: Patent
System: The Portal to Texas History