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Failure analysis of an elbow tube fitting

Description: This article discusses elbow tube fitting. Abstract: Safe operation of machinery depends strongly on the design of the system and the employement of proper components and materials. Unique to fluid powered systems are the proper selection of hydraulic lines, fittings, and control valves. This paper describes the cause of fracture in an elbow tube fittings due to deficiencies in the dimensional design and materials selection. The investigation included metallography, fractography, hardness testi… more
Date: unknown
Creator: Mirshams, Reza A. & Sabbaghian, Mehdy
Partner: UNT College of Engineering
open access

Filosofía ambiental de campo: ecología y ética en las redes LTER-Chile e ILTER

Description: Article presents a methodological framework and applications of Field Environmental Philosophy (FEP) at Omora Park that combine ecological and philosophical research in education and biocultural conservation programs, including ecotourism.
Date: unknown
Creator: Rozzi, Ricardo, 1960-; Massardo, Francisca; Contador, Tamara; Crego, Ramiro D.; Méndez, Manuela; Rijal, Rajan et al.
Partner: University of North Texas
open access

Gravitational microlensing evidence for a planet orbiting a binary star system

Description: This article reports observations and light curve modeling of gravitational microlensing event MACHO-97-BLG-41, which indicates that the lens system consists of a planet orbiting a binary star system.
Date: unknown
Creator: Bennett, D. P.; Rhie, S. H.; Becker, A. C.; Butler, N.; Dan, J.; Kaspi, Shai et al.
Partner: UNT College of Arts and Sciences
open access

Housing Upkeep and Public Good Provision in Residential Neighborhoods

Description: This article uses the consideration of neighborhood condition as an impure public good for a theoretical basis to understand how the level of neighborhood quality may affect residents' home maintenance decisions.
Date: unknown
Creator: Leonard, Tammy
Partner: UNT College of Arts and Sciences
open access

Metastability-assisted fatigue behavior in a friction stir processed dual-phase high entropy alloy

Description: This article explores metastability-based high entropy alloy design which can open a new strategic path for designing high strength materials. However, high strength is always coupled with poor damage tolerance under cyclic loading conditions (fatigue). To overcome this drawback, the articles presents grain-refined Fe42Mn28Cr15Co10Si5 exhibiting significantly high fatigue strength as compared with leading transformation induced plasticity steels upon friction stir processing.
Date: unknown
Creator: Liu, K; Nene, S. S.; Frank, M.; Sinha, S. & Mishra, R. S.
Partner: UNT College of Engineering
open access

To Be or Not To Be: Schenker's Versus Schenkerian Attitudes Towards Sequences

Description: This article discusses Schenker's attitude toward sequences alongside the atittudes of Schenkerian theorists, as well as the author's own thoughts about sequences, and uses examples from the first movement of Mozart's Piano Sonata in F and the development section of Scarlatti's Sonata in E major.
Date: unknown
Creator: Slottow, Stephen
Partner: UNT College of Music
open access

Ultrastructure of Azotobacter vinelandii

Description: Article discussing research on vegetative cells and cysts for Azotobacter vinelandii 12837 prepared for electron microscopy by several methods assumed to preserve structural details destroyed by techniques previously reported in literature.
Date: August 8, 1970
Creator: Vela, G. Roland, 1927-; Cagle, Gerald D. & Holmgren, P. R.
Partner: UNT College of Arts and Sciences
open access

Effect of Peptone on Azotobacter Morphology

Description: Article on pleomorphism in cultures of Azotobacter vinelandii, induced by the addition of Difco peptone to the growth medium.
Date: July 1972
Creator: Vela, G. Roland, 1927- & Rosenthal, R. S.
Partner: UNT College of Arts and Sciences
open access

Cysts of Azotobacter vinelandii with Double Coats

Description: Article on members of the genus Azotobacter, which are characterized by their ability to form cysts.
Date: October 1972
Creator: Cagle, Gerald D. & Vela, G. Roland, 1927-
Partner: UNT College of Arts and Sciences
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