UNT Libraries Government Documents Department - 1,743 Matching Results

Search Results

Results: 1 - 24 next
open access

State and Local Finances, Significant Features, 1966 to 1969

Description: Information report providing updated data related to state and local finances, reflecting tax legislation enacted through mid-November 1968. It outlines significant features and provides characteristics of a "high-quality" system for comparison.
Date: November 1968
Creator: United States. Advisory Commission on Intergovernmental Relations.
open access

Standard X-ray Diffraction Powder Patterns: Section 6. Data for 60 Substances

Description: Report documenting standard x-ray diffraction powder patterns for various compounds, intended to replace previous data or provide information for new substances. It describes the methods and, for each substance, outlines any previous data as well as information about the sample used and structural data, with a table of diffraction patterns.
Date: June 1968
Creator: Swanson, H. E.; McMurdie, H. F.; Morris, M. C. & Evans, E. H.
open access

Microwave Spectral Tables: Volume 5. Spectral Line Listing

Description: From Abstract: "This volume is a listing of the spectral lines reported in Volume I, III, and IV of the Microwave Spectral Tables. These lines are listed according to ascending magnitude of frequency and should provide a steady reference."
Date: June 1968
Creator: Cord, Marian S.; Lojko, Matthew S. & Petersen, Jean D.
open access

Colorimetry

Description: "The definition of color, as a characteristics of light, and the basic principles of its measurement are given. The reduction of spectrophotometric data to three chromaticity coordinates by means of the three-function CIE standard observer system for colorimetry is described. Various methods of direct colorimetry, and visual and photoelectric methods of colorimetry by differences from material standards are treated" (p. 1).
Date: January 1968
Creator: Nimeroff, I.
open access

Nickel and Its Alloys

Description: From Abstract: "This monograph reviews available information on the production, properties, and uses of high-purity and commercial forms of nickel, and on the properties and applications of its important alloys, both ferrous and non ferrous."
Date: May 1968
Creator: Rosenberg, Samuel J.
open access

Technology of Liquid Helium

Description: From Abstract: "This treatise is a source document containing information on helium resources, production, conservation, thermodynamic properties, liquefaction and refrigeration techniques, transportation and storage of liquid and safety requirements. It also contains a discussion of uses for liquid and cold gas in cryoelectronics, superconductivity, bubble chambers, cryopumping and missile and space systems."
Date: October 1968
Creator: Kropschot, R. H.; Birmingham, B. W. & Mann, D. B.
open access

Acid-Base Behavior in Aprotic Organica Solvents

Description: Report presenting the National Bureau of Standards' research program designed to determine and explain acid-base behavior in aprotic organic solvents and to develop methods and reference materials for determining total acid and base content and relative strengths of acids and bases in the media.
Date: August 1968
Creator: Davis, Marion Maclean
open access

Tunneling: Recommended Safety Rules

Description: Report meant to promote health and safety in tunneling and related operations. All precautionary measures recommended are based on actual conditions observed from investigations of fatal or serious accidents and from research conducted to find ways and means of alleviating hazards.
Date: 1968
Creator: United States. Bureau of Mines. Health and Safety Activity.
open access

X-Ray Studies of Coals and Carbonaceous Materials

Description: From Abstract: "This report gives the result of investigations of coals of different rank, coal components, chemically and thermally treated and sedimented organic matter."
Date: 1968
Creator: Ergun, Sabri
open access

Hydrogenation of Coal and Tar

Description: From Abstract: "This bulletin traces the development of high-pressure, coal and tar hydrogenation technology, based on intensive review of the pertinent literature. The bulletin was written as a part of the Bureau of Mines research program on synthetic liquid fuels. It covers the history and economics of the process; the chemical aspect of hydrogenation of coal, tar, and middle oil; the engineer aspect of converting coal and tar to liquid fuels, principally gasoline; and the equipment of the pr… more
Date: 1968
Creator: Wu, W. R. K. & Storch, H. H.
open access

A Study of the Disposal of the Effluent From a Large Desalination Plant

Description: From Introduction and Summary and Conclusions: "The disposal of the effluents from large desalination plants has been studied for two years by the Dow Chemical Company and Texas A. & M. University under contract to the Office of Saline Water. Recommendations are presented on the type, frequency, and intensity of pre-plant oceanographic and biological surveys and of post-plant monitoring and verification surveys."
Date: January 1968
Creator: Le Gros, P. G.; Mandelli, E. F.; McIlhenny, W. F.; Winthrode, D. E.; Zeitoun, M. A.; Pequegnat, W. E. et al.
open access

Recovery of Salts from Saline Waters Via Solvent Extraction

Description: From Abstract: "This report contains the results of a 15-month study of the chemistry of mixed iconic extractant systems and their possible application to the recovery of by-products from desalination brines."
Date: January 1968
Creator: Grinstead, Robert R. & Davis, J. C.
open access

Large Reverse Osmosis System Technology and Module Development

Description: From Introduction: "This is the final report on a program of reverse osmosis research conducted for the Office of Saline Water, U.S. Department of the Interior, under Contract 14-01-0001-929. The purpose of the program was the development of larger spiral-wound reverse osmosis modules for economical application in large reverse osmosis systems."
Date: June 1968
Creator: Riedinger, A. B.; Laughlin, J. K. & Sudak, R. G.
open access

Evaluation of Concrete and Related Materials for Desalination Plants

Description: Report examining the uses of concrete in evaporator-type desalting plants. Different types of concrete are evaluated, as well as structures, accessory coatings and sealants, reinforcement materials, and microstructures.
Date: May 1968
Creator: United States. Bureau of Reclamation.
open access

Operation of Reverse Osmosis Pilot Plants

Description: From Introduction: "This report includes the sixth segment of a continuing effort begun early in 1963. Purpose of the work is the scale-up of reverse osmosis from a laboratory curiosity to an economical system for the production of potable water from salty feeds."
Date: August 1968
Creator: DeHaven, C. G.; Jarvis, M. A. & Wunderlich, C. R.
open access

Investigation of Membrane Stack Resistance Increase With a Natural Brackish Water

Description: From Introduction: "An investigation was undertaken by the Bureau of Reclamation to identify the cause of causes of this problem with a particular brackish water. The resistance increase of is of great concern principally because of the increase in power consumption that ultimately contributes to a higher cost for product water. Reports show that membrane stack resistance has increased as much as 200 percent over period of several days."
Date: January 1968
Creator: Furukawa, D. H.
open access

Vacuum-Freezing Vapor-Compression Desalting Process

Description: From Abstract: "The Vacuum-Freezing Vapor-Compression Process (VFVC) was evaluated during the period from February, 1965, through March, 1967, by Colt Industries Inc. under O.S.W. Contract No. 14-01-0001-532." From Process Description: "The primary principles involved for converting of sea and brackish water to fresh water in the VFVC Process are rather well known in physical chemistry and are summarized below. The principles discussed above, applied to a practical VFVC desalting system, are il… more
Date: 1968
Creator: Consie, R.; Emmermann, D.; Fraser, J.; Johnson, W. B. & Johnson, W. E.
open access

Development Report Number 7: Saline Water Conversion Test Bed Plant, Freeport, Texas

Description: Report regarding the ninth Development Run of Saline Water Conversion Demonstration Plant Number 1. Primary objectives include studying "various aspects of heat transfer and sea water and condensate treatment and their effect on the Multiple-Effect Long-Tube-Vertical Evaporation Process" (p. 1).
Date: June 1968
Creator: Stearns-Roger Corporation
open access

Freon-12 Hydrate Desalting Process

Description: Report that "evaluates an operation program of a hydrate process for the desalination of sea water in a 10,000 GPD plant located at the Office of Saline Water Research and Development Test Station (Wrightsvile Beach Test Facility at Wrightsville Beach, New Carolina) for the period march 1967 through July 1968" (p. i).
Date: August 1968
Creator: Garrison, Kenneth; Slape, R. J. & Snedden, L. L.
Back to Top of Screen