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Aquatic Ecological Classification and Evaluation of Streams and Stream Reaches in the Upper Roanoke River Basin, Virginia (open access)

Aquatic Ecological Classification and Evaluation of Streams and Stream Reaches in the Upper Roanoke River Basin, Virginia

The purpose of this study is to "establish a data base and methodology for classifying...the streams of the Roanoke Basin into a hierarchy of ecological systems" and to "establish evaluative criteria and methodology for classifying and ranking streams within the ecological systems relative to their state of environmental quality" (p. R1).
Date: March 30, 1979
Creator: North Texas State University. Institute of Applied Sciences.
Object Type: Report
System: The UNT Digital Library
Toxic Agent Sensor and Detector Method, Apparatus, and System (open access)

Toxic Agent Sensor and Detector Method, Apparatus, and System

Patent relating to a toxic agent sensor and detector method, apparatus, and system.
Date: May 25, 2006
Creator: Henley, Donald E.; Anand, Aman; Imholt, Timothy & Roberts, James A.
Object Type: Patent
System: The UNT Digital Library
Method for using Filed Emitter Arrays in Chemical and Biological Hazard Mitigation and Remediation (open access)

Method for using Filed Emitter Arrays in Chemical and Biological Hazard Mitigation and Remediation

Patent relating to a method for using field emitter arrays in chemical and biological hazard mitigation and remediation.
Date: January 18, 2002
Creator: Gnade, Bruce & Wallace, Robert M.
Object Type: Patent
System: The UNT Digital Library
Liquid Cooled Stirling Engine with a Segmented Rotary Displacer (open access)

Liquid Cooled Stirling Engine with a Segmented Rotary Displacer

Patent relating to a liquid cooled stirling engine with a segmented rotary displacer.
Date: September 16, 2010
Creator: Foster, Phillip R.
Object Type: Patent
System: The UNT Digital Library

Texas Catholic Missions Travel Guide

This presentation describes the use of The Portal to Texas History in the classroom through a lesson plan creating a journey through Spanish Missions in Texas.
Date: March 30, 2016
Creator: Monahan, Jo
Object Type: Presentation
System: The UNT Digital Library