Evaluation of Concrete and Related Materials for Desalination Plants (open access)

Evaluation of Concrete and Related Materials for Desalination Plants

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.
System: The UNT Digital Library
Nickel and Its Alloys (open access)

Nickel and Its Alloys

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.
System: The UNT Digital Library
A Quantitative Method for Describing Terrain for Ground Mobility, Volume 1: Summary (open access)

A Quantitative Method for Describing Terrain for Ground Mobility, Volume 1: Summary

First report in a series of eight about studies to predict the performance of military vehicles in different kinds of terrain. This volume is a summary of the overall project and results.
Date: May 1968
Creator: Shamburger, J. H. & Grabau, Warren E.
System: The UNT Digital Library
Seven New White-winged Doves from Mexico, Central America, and Southwestern United States (open access)

Seven New White-winged Doves from Mexico, Central America, and Southwestern United States

Seven new subspecies of the white-winged dove (Zenaida asiatica) are described. The patterns of these recoveries are an invaluable aid to understanding racial distribution of this species. The extent of migration that breed in Central America is not yet adequately known. The range of the doves extends as far north as the southwestern United States.
Date: May 1968
Creator: Saunders, George B.
System: The UNT Digital Library
Transverse Antenna Feed Study: Final Report (open access)

Transverse Antenna Feed Study: Final Report

The program described in this final report had as its goal the investigation of the transverse focal region field distributions of a Cassegrain reflector antenna, evolving applicable microwave feed networks, and analysis of antenna system performance behavior as a function of the various feed electrical and physical parameters. (Author)
Date: May 1968
Creator: Martin, R. W.; Smilen, L. I. & Valentino, P.
System: The UNT Digital Library