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[Interior of Outhouse]

Description: Photograph of the interior of an outhouse, possibly near the Jack Daniels distillery in Lynchburg, Tennessee. The outhouse features a seat with a lid, and a large paperback book lies on the floor.
Date: April 20, 1974
Creator: Clark, Joe
Partner: UNT Libraries Special Collections

[Dr. James Baird]

Description: Photograph of Dr. James Baird, Professor of English. Dr. Baird taught for 45 years, starting out as an associate professor in 1966 and retiring in 2011. Dr. Baird is seen seated, in cap and jeans jacket, against a neutral background. Photo taken April 20, 1977.
Date: April 20, 1977
Partner: UNT Libraries Special Collections

Afghanistan: Post-Taliban Governance, Security, and U.S. Policy

Description: This report discusses the current political state of Iran, focusing particularly on the influence of the Taliban and other militant groups and on the leadership of Afghan President Hamid Karzai. This report also discusses the U.S.-Iran relationship and U.S. efforts under the Obama Administration to provide military, reconstructive, and stabilization aid.
Date: April 20, 2010
Creator: Katzman, Kenneth
Partner: UNT Libraries Government Documents Department

Federal Register, Volume 76, Number 76, April 20, 2011, Pages 21999-22292

Description: Daily publication of the U.S. Office of the Federal Register contains rules and regulations, proposed legislation and rule changes, and other notices, including "Presidential proclamations and Executive Orders, Federal agency documents having general applicability and legal effect, documents required to be published by act of Congress, and other Federal agency documents of public interest" (p. ii). Table of Contents starts on page iii.
Date: April 20, 2011
Creator: United States. Office of the Federal Register.
Partner: UNT Libraries Government Documents Department

[Photograph of James Baird]

Description: Photograph of Dr. James Baird sitting and smiling past the camera. Baird worked at UNT for 45 years as an English professor, starting out as an associate professor in 1966 and retiring in 2011.
Date: April 20, 1977
Partner: UNT Libraries Special Collections

[Dr. James Baird]

Description: Photograph of Dr. James Baird, Professor of English. Dr. Baird taught for 45 years, starting out as an associate professor in 1966 and retiring in 2011. Dr. Baird is seen seated, wearing a jeans jacket, against a neutral background. Photo taken April 20, 1977.
Date: April 20, 1977
Partner: UNT Libraries Special Collections

[Photograph of James Baird]

Description: Photograph of Dr. James Baird, posing for the camera with his hand on his chin. Baird worked at UNT for 45 years as an English professor, starting out as an associate professor in 1966 and retiring in 2011.
Date: April 20, 1977
Partner: UNT Libraries Special Collections

[Photograph of Dr. James Baird]

Description: Photograph of Dr. James Baird, sitting in front of a solid background and smiling at the camera. Baird worked at UNT for 45 years as an English professor, starting out as an associate professor in 1966 and retiring in 2011.
Date: April 20, 1977
Partner: UNT Libraries Special Collections

[Dr. James Baird]

Description: Photograph of Dr. James Baird, Professor of English. Dr. Baird taught for 45 years, starting out as an associate professor in 1966 and retiring in 2011. Dr. Baird is seen seated, wearing a jeans jacket, against a neutral background. Photo taken April 20, 1977.
Date: April 20, 1977
Partner: UNT Libraries Special Collections

[Dr. James Baird]

Description: Photograph of Dr. James Baird, Professor of English. Dr. Baird taught for 45 years, starting out as an associate professor in 1966 and retiring in 2011. Dr. Baird is seen seated, wearing a jeans jacket, against a neutral background. Photo taken April 20, 1977.
Date: April 20, 1977
Partner: UNT Libraries Special Collections

A study of the source materials, depositional environments, mechanisms of generation and migration of oils in the Anadarko, Oklahoma. Progress report, September 15, 1990--September 14, 1991

Description: This report is for the final year of a three-year funded project. A new proposal has been submitted and it is hoped that funding will continue for another three years. It is felt that good progress is being made with our work on studying the oils and source rocks in the Anadarko Basin. Furthermore a number of associated projects have evolved during this period which have also produced many useful results and various analytical methods have been developed. In Appendix I lists of students totally or partially supported by this work plus various publications are given. It is hoped that these will testify to our productivity arising from the DOE support over the past few years.
Date: April 20, 1990
Creator: Philp, R.P.
Partner: UNT Libraries Government Documents Department

Pressure fluctuations as a diagnostic tool for fluidized beds. Technical progress report, January 1, 1996--March 31, 1996

Description: Additional pressure fluctuation data was recorded from the ISU power plants two CFB boilers. Absolute pressure fluctuations were measured immediately above the distributor nozzles and near the top of the CFB boilers. The fluctuations measured near the bottom of the bed exhibit a highly oscillatory (0.25-0.3 Hz) phenomena. This {open_quotes}square wave{close_quotes} pressure signal is observed at all times of the day and under different boiler loadings. Steps were taken to insure that abasing was not the cause of the observed pressure dynamics. It is hypothesized that these fluctuations are the result of the coal feed system, and are not related to the CFB hydrodynamics. Pressure fluctuations measured near the top of the bed do not show this dominant periodic behavior attributed to the coal feed system. The Bode plots of pressure fluctuations in this region show a near -40 dB/decade roll-off and a cornering frequency of around 0.07 Hz. This result suggests that the pressure dynamics in industrial scale CFBs may be governed by a wave phenomenon similar to that observed in the laboratory scale circulating fluidized beds. This result cannot be confined until more is known about the boiler control dynamics, and more extensive boiler instrumentation is available.
Date: April 20, 1996
Creator: Brown, R.C.
Partner: UNT Libraries Government Documents Department

PRODUCTION OF NEW BIOMASS/WASTE-CONTAINING SOLID FUELS

Description: CQ Inc. and its team members (ALSTOM Power Inc., Bliss Industries, McFadden Machine Company, and industry advisors from coal-burning utilities, equipment manufacturers, and the pellet fuels industry) addressed the objectives of the Department of Energy and industry to produce economical, new solid fuels from coal, biomass, and waste materials that reduce emissions from coal-fired boilers. This project builds on the team's commercial experience in composite fuels for energy production. The electric utility industry is interested in the use of biomass and wastes as fuel to reduce both emissions and fuel costs. In addition to these benefits, utilities also recognize the business advantage of consuming the waste byproducts of customers both to retain customers and to improve the public image of the industry. Unfortunately, biomass and waste byproducts can be troublesome fuels because of low bulk density, high moisture content, variable composition, handling and feeding problems, and inadequate information about combustion and emissions characteristics. Current methods of co-firing biomass and wastes either use a separate fuel receiving, storage, and boiler feed system, or mass burn the biomass by simply mixing it with coal on the storage pile. For biomass or biomass-containing composite fuels to be extensively used in the U.S., especially in the steam market, a lower cost method of producing these fuels must be developed that includes both moisture reduction and pelletization or agglomeration for necessary fuel density and ease of handling. Further, this method of fuel production must be applicable to a variety of combinations of biomass, wastes, and coal; economically competitive with current fuels; and provide environmental benefits compared with coal. Notable accomplishments from the work performed in Phase I of this project include the development of three standard fuel formulations from mixtures of coal fines, biomass, and waste materials that can be used in existing boilers, evaluation ...
Date: April 20, 2001
Creator: Akers, David J.; Shirey, Glenn A.; Zitron, Zalman & Maney, Charles Q.
Partner: UNT Libraries Government Documents Department

Performance Requirements for the Double Shell Tank (DST) System Phase 1

Description: This document describes the performance requirements for the Double-Shell Tank (DST) System. These requirements reflect the Case 3, Project Planning Case from the Tank Waste Remediation System Operation and Utilization Plan, Revision 1. These requirements, in turn, will be incorporated into a specification for the DST System.
Date: April 20, 2000
Creator: SMITH, D.F.
Partner: UNT Libraries Government Documents Department

A review of a method for dynamic load distribution, dynamical modeling, and explicit internal force control when two manipulators mutually lift and transport a rigid body object

Description: The paper reviews a method for modeling and controlling two serial link manipulators which mutually lift and transport a rigid body object in a three dimensional workspace. A new vector variable is introduced which parameterizes the internal contact force controlled degrees of freedom. A technique for dynamically distributing the payload between the manipulators is suggested which yields a family of solutions for the contact forces and torques the manipulators impart to the object. A set of rigid body kinematic constraints which restrict the values of the joint velocities of both manipulators is derived. A rigid body dynamical model for the closed chain system is first developed in the joint space. The model is obtained by generalizing the previous methods for deriving the model. The joint velocity and acceleration variables in the model are expressed in terms of independent pseudovariables. The pseudospace model is transformed to obtain reduced order equations of motion and a separate set of equations governing the internal components of the contact forces and torques. A theoretic control architecture is suggested which explicitly decouples the two sets of equations comprising the model. The controller enables the designer to develop independent, non-interacting control laws for the position control and internal force control of the system.
Date: April 20, 1997
Creator: Unseren, M.A.
Partner: UNT Libraries Government Documents Department

The utilization of the microflora indigenous to and present in oil-bearing formations to selectively plug the more porous zones thereby increasing oil recovery during waterflooding. Ninth quarterly progress report, January 1--March 31, 1996

Description: The objective of this work is to demonstrate the use of indigenous microbes as a method of profile control in waterfloods. It is expected that as the microbial population is induced to increase, that the expanded biomass will selectively block the more permeable zones of the reservoir thereby forcing injection water to flow through the less permeable zones which will result in improved sweep efficiency. This increase in microbial population will be accomplished by injecting a nutrient solution into four injectors. Four other injectors will act as control wells. During Phase 1, two wells will be cored through the zone of interest. The core will be subjected to special core analyses in order to arrive at the optimum nutrient formulation. During Phase 2, nutrient injection will begin, the results monitored, and adjustments to the nutrient composition made, if necessary. Phase 2 also will include the drilling of three wells for post-mortem core analysis. Phase 3 will focus on technology transfer of the results. It should be pointed out that one expected outcome of this new technology will be a prolongation of economical waterflooding operations, i.e. economical oil recovery should continue for much longer periods in the producing wells subjected to this selective plugging technique.
Date: April 20, 1996
Creator: Brown, L.R. & Vadie, A.A.
Partner: UNT Libraries Government Documents Department