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Habitat '67

Description: The fabricated concrete unit is ready for installation as one of 354 discrete units for the housing complex.
Access: This item is restricted to UNT Community Members. Login required if off-campus.
Date: 1967
Creator: Safdie, Moshe
Location Info:
Partner: UNT College of Visual Arts + Design

[Stone Wall]

Description: Photograph of a stone wall in Cuernavaca, Mexico. The wall is visible on the right side of the frame. There is a door in the wall in the foreground. A stone water basin sits in the center foreground. A group of people is visible behind the basin. A car is parked next to the wall in the background.
Date: unknown
Creator: Gough, Ray
Partner: UNT College of Visual Arts + Design

[Irish Castle]

Description: Photograph of a castle in Ireland. A stone wall is visible in the bottom foreground framed by trees. The castle is visible behind the wall.
Date: 1970
Creator: Gough, Ray
Partner: UNT College of Visual Arts + Design

An analysis of shock-wave cancellation and reflection for porous walls which obey an exponential mass-flow pressure-difference relation

Description: From Introduction: "In the present report a generalized exponential relation between pressure difference and normal flow is assumed which adequately describes porous-wall calibrations obtained experimentally at the Ames Laboratory and those presented in references 1 and 3."
Date: August 1954
Creator: Spiegel, Joseph M & Tunnell, Phillips J
Partner: UNT Libraries Government Documents Department

Plant Cell Walls: Basics of Structure, Chemistry, Accessibility and the Influence on Conversion - Aqueous Pretreatment of Plant Biomass for Biological and Chemical Conversion to Fuels and Chemicals

Description: This book is focused on the pretreatment of biomass, a necessary step for efficient conversion of the plant cell wall materials to fuels and other products. Pretreatment is required because it is difficult to access, separate, and release the monomeric sugars comprising the biopolymers within the biomass that can be further upgraded to products through chemical processes such as aqueous phase reforming or biological routes such as fermentation of the sugars to ethanol This resistance to degradation or difficulty to release the monomers (mostly sugars) is commonly referred to as recalcitrance. There are many methods to overcome plant recalcitrance, but the underlying cause of the recalcitrance lies in the complex combination of chemical and structural features of the plant cell walls.
Date: January 1, 2013
Creator: Davison, Brian H; Davis, Dr. Mark F.; Parks, Jerry M & Donohoe, Bryan
Partner: UNT Libraries Government Documents Department

[Stone Tower]

Description: Photograph of a stone tower in Ireland. The tower connects to a wall in the foreground. Weeds grow out of the top of the wall.
Date: 1970
Creator: Gough, Ray
Partner: UNT College of Visual Arts + Design

[Old City Wall]

Description: Photograph of an old city wall in Ireland. A new wall in the foreground abuts the old wall. The old wall contains stonework ornamentation in the form a castle. There is an archway below the castle. More modern buildings are visible in the background through the arch.
Date: 1970
Creator: Gough, Ray
Partner: UNT College of Visual Arts + Design

[Tower]

Description: Photograph of a tower in Ireland. In the foreground, water is visible surrounded by a stone wall. Beyond the stone wall, a stone tower is viisble. Trees and sky are visible in the background.
Date: 1970
Creator: Gough, Ray
Partner: UNT College of Visual Arts + Design

[Stone Wall]

Description: Photograph of a stone wall in Ireland. In the foreground, the wall is visible with a man on the top edge. The distant landscape is visible in the background.
Date: 1970
Creator: Gough, Ray
Partner: UNT College of Visual Arts + Design

Transcriptome Analysis of Arabidopsis Wild-Type and gl3-sst sim Trichomes Identifies Four Additional Genes Required for Trichome Development

Description: Article on a transcriptome analysis of Arabidopsis wild-type and gl3-sst sim trichomes identifying four additional genes required for trichome development.
Date: February 7, 2009
Creator: Marks, M. David; Wenger, Jonathan P.; Gilding, Edward; Jilk, Ross & Dixon, R. A.
Partner: UNT College of Arts and Sciences

Chemical composition of the peptidoglycan of Vitreoscilla stercoraria

Description: The peptidoglycan layer of Vitreoscilla stercoraria, ATCC 15218, was isolated from intact cells after treatment with sodium lauryl sulfate (SLS) and digestion with Pronase. Amino acid and amino sugar content was analyzed and 67% of the total present was made up of glutamic acid, alanine, diaminopimelic acid (DAP), and glusocamine in a molar ratio of 1:1.7:1:.0.7.
Date: August 1976
Creator: Levit, Gary
Partner: UNT Libraries

An Ultrasonic System for Testing Isotope Heat Capsules

Description: Introduction: This report describes a program to develop a nondestructive (ultrasonic) tester and testing procedure to perform integrity tests on isotope heat source containers. The increased application of isotope heat sources has brought more attention to the engineering problems encountered during fabrication. One of the most important of these problems is insuring the isotope containment during the long unattended periods of use. To determine the integrity of the heat source container, a nondestructive testing procedure must be adopted to test each heat source after fabrication.
Date: March 1968
Creator: Dozer, B. E.
Partner: UNT Libraries Government Documents Department

Determining Cost-Effective Insulation Levels for Masonry and Wood-Frame Walls in New Single-Family Housing

Description: Report issued by the National Bureau of Standards over calculations for cost-effective insulation in single-family housing. Different calculations are made with regards to location, energy pricing, heating and cooling equipment available, and financial criteria. This report includes tables, illustrations, and photographs.
Date: August 1981
Creator: Petersen, Stephen R.; Barnes, Kimberly A. & Peavy, Bradley A.
Partner: UNT Libraries Government Documents Department

A new method for isolating large quantities of Arabidopsis trichomes for transcriptome, cell wall and other types of analyses

Description: Article on a new method for isolating large quantities of Arabidopsis trichomes for transcriptome, cell wall and other types of analyses.
Date: November 2008
Creator: Marks, M. David; Betancur, Lissete; Gilding, Edward; Chen, Fang; Bauer, Stefan; Wenger, Jonathan P. et al.
Partner: UNT College of Arts and Sciences

Residential Utility Core Wall System - ResCore

Description: This paper describes activities associated with the RESidential utility CORE wall system (ResCore) developed by students and faculty in the Department of Industrial Design at Auburn University between 1996 and 1998. These activities analyize three operational prototype units installed in Habitat for Humanity Houses. The paper contains two Parts: 1) analysis of the three operational prototype units, 2) exploration of alternative design solutions. ResCore is a manufactured construction component designed to expedite home building by decreasing the need for skilled labor at the work site. The unit concentrates untility elements into a wall unit(s), which is shipped to the construction site and installed in minimum time. The ResCore unit is intended to be built off-site in a manufacturing environment where the impact of vagaries of weather and work-crew coordination and scheduling are minimized. The controlled environment of the factory enhances efficient production of building components through material and labor throughput controls, enabling the production of components at a substantially reduced per-unit cost. The ResCore unit when compared to traditional "stick-built" utility wall components is in may ways analogous to the factory built roof truss compared to on-site "stick-Built" roof framing.
Date: June 1, 1999
Creator: Boyd, G.; Lundell, C. & Wendt, R.
Partner: UNT Libraries Government Documents Department

Evaluation of concrete masonry unit walls for lateral natural phenomena hazards loads

Description: Older single-story facilities (Pre-1985 vintage) are commonly constructed of structural steel framing with concrete masonry unit (CMU) walls connected to columns and roof girders of the steel framing system. The CMU walls are designed for lateral wind and seismic loads (perpendicular to the wall) and transmit shear loads from the roof diaphragm to the foundation footings. The lateral loads normally govern their design. The structural framing system and the roof diaphragm system are straight forward when analyzing or upgrading the structure for NPH loads. Because of a buildings design vintage, probable use of empirical methodology, and poor design basis documentation (and record retention); it is difficult to qualify or upgrade CMU walls for lateral Natural Phenomena Hazards (NPH) loads in accordance with References 1, 2 and 3. This paper discusses three analytical approaches and/or techniques (empirical, working stress and yield line) to determine the collapse capacity of a laterally loaded CMU wall, and compares their results
Date: March 8, 1996
Creator: Faires, W.E. Jr.
Partner: UNT Libraries Government Documents Department

Measurement of Time-Averaged Particle-Wall Collision Properties Using Particle Tracking Velocimetry, CRADA PC93-006, Final Report

Description: This paper describes an experimental facility to measure time-averaged properties of particle-wall collisions. A particle tracking velocimetry (PTV) system measures particle rebound angles and velocities and impact angles and velocities for specific particles. From these measured properties, values of normal and tangential coefficient of restitution are derived. The PTV system rapidly measures thousands of particle-wall collisions enabling determination of time-averaged properties. In this initial work we use 191 {micro}m glass particles colliding with a glass plate at a fixed angle of 17.5{degree} and a velocity of 17.07 m/s. Observations are also made of aspherical particles colliding with gross sliding. In the future, this experimental system will be used with particles and wall materials of industrial significance.
Date: April 30, 1995
Creator: Shaffer, F.; Massah, H.; Sinclair, J. & Shahnam, M.
Partner: UNT Libraries Government Documents Department

Seismic Performance Evaluation of Novel Cold-Formed Steel Framed Shear Walls Sheathed with Corrugated Steel Sheets

Description: This thesis presents experiments and numerical analysis of a novel cold-formed steel framed shear wall sheathed with corrugated steel sheets. The objective of this newly designed shear wall is to meet the growing demand of mid-rise buildings and the combustibility requirement in the International Building Code. The strength of the novel shear wall is higher than currently code certified shear wall in AISI S400-15 so that it could be more favorable for mid-rise building in areas that are prone to earthquakes and hurricanes. Full-scale monotonic and cyclic tests were conducted on bearing walls and shear walls under combined lateral and gravity loads. Though the gravity loads had negative effects on the strength and stiffness of the shear wall due to the buckling of the chord framing members, it still shows promise to be used in mid-rise buildings. The objective of numerical analysis is to quantify the seismic performance factors of the newly design shear wall lateral-force resisting system by using the recommended methodology in FEMA P695. Two groups of building archetypes, story varied from two to five, were simulated in OpenSees program. Nonlinear static and dynamic analysis were performed in both horizontal directions of each building archetype. Finally, the results of the performance evaluation verified the seismic performance factors(R=Cd=6.5 and Ω =3.0) were appropriate for the novel shear wall system.
Date: August 2017
Creator: Lan, Xing
Partner: UNT Libraries