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Geology of the Raleigh 1° x 2° Quadrangle, North Carolina

Description: From Introduction: The purpose of this report is to provide geologic and mineral resource background information useful in evaluating the uranium potential of the Raleigh 1* X 20 sheet.
Date: 1978
Creator: Wilson, William F.; Carpenter, P. Albert, III; Burt, Edward R.; McDaniel, Ronald D.; Coffey, James C. & McKensie, Benjamin J.
Partner: UNT Libraries Government Documents Department

Adaptive significance of root grafting in trees

Description: Root grafting has long been observed in forest trees but the adaptive significance of this trait has not been fully explained. Various authors have proposed that root grafting between trees contributes to mechanical support by linking adjacent root systems. Keeley proposes that this trait would be of greatest advantage in swamps where soils provide poor mechanical support. He provides as evidence a greenhouse study of Nyssa sylvatica Marsh in which seedlings of swamp provenance formed between-individual root grafts more frequently than upland provenance seedlings. In agreement with this within-species study, Keeley observed that arid zone species rarely exhibit grafts. Keeley also demonstrated that vines graft less commonly than trees, and herbs never do. Since the need for mechanical support coincides with this trend, these data seem to support his model. In this paper, the authors explore the mechanisms and ecological significance of root grafting, leading to predictions of root grafting incidence. Some observations support and some contradict the mechanical support hypothesis.
Date: December 31, 1988
Creator: Loehle, C. & Jones, R.
Partner: UNT Libraries Government Documents Department

Report of material and equipment section`s activities at New York Shipbuilding Corporation during fabrication of AXC 167 1/2 starting May 18, 1951. Part 7, Section 3

Description: This document provides Part VII, Section III and Section IV of the report of the Material and Equipment Section`s activities at the New York Shipbuilding Corporation. The fabrication, inspection, and testing of reactor components is detailed.
Date: April 28, 1954
Creator: Stewart, J.R.
Partner: UNT Libraries Government Documents Department

Report of material and equipment section`s activities at New York Shipbuilding Corporation during fabrication of AXC 167 1/2 starting May 18, 1951. Part 3

Description: This report provides Part III through VI of the Material and Equipment Section`s activities at New York Shipbuilding Corporation. Fabrication, inspection, and testing of reactor components are detailed.
Date: May 26, 1954
Creator: Stewart, J.R.
Partner: UNT Libraries Government Documents Department

Report of material and equipment section`s activities at New York Shipbuilding Corporation during fabrication of AXC 167 1/2 starting May 18, 1951. Part 7, Section 1: Paragraphs 1--14

Description: This document provides Part VII, Section I, Paragraphs 1 through 16 and Part VII, Section II of the Material and Equipment Section`s activities during the fabrication of reactor components and vessels at the New York Shipbuilding Corporation.
Date: February 28, 1954
Creator: Stewart, J.R.
Partner: UNT Libraries Government Documents Department

Ceramic composite coatings

Description: A thin, room-temperature-curing, ceramic composite for coating and patching metal substrates comprises a sol gel silica glass matrix filled with finely ground particles or fibers, preferably alumina. The sol gel glass is made by adding ethanol to water to form a first mixture, then separately adding ethanol to tetraethyl orthosilicate to form a second mixture, then slowly adding the first to the second mixture to make a third mixture, and making a slurry by adding the finely ground particles or fibers to the third mixture. The composite can be applied by spraying, brushing or trowelling. If applied to patch fine cracks, densification of the ceramic composite may be obtained to enhance sealing by applying heat during curing.
Date: December 31, 1991
Creator: Wicks, G.G.
Partner: UNT Libraries Government Documents Department