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1,566 Matching Results
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DEVELOPMENT OF A THERMAL EQUILIBRIUM PREDICTION ALGORITHM
None
Date:
December 1, 2001
Creator:
AVILES-RAMOS, C.
Object Type:
Article
System:
The UNT Digital Library
Abilene Philharmonic Playbill: December 8-January 12, 2002
Program for an Abilene Philharmonic concert that ran from December 8th, 2001 to January 12th during the 51st season. It includes information about the pieces performed, artists and musicians, and advertising from local companies.
Date:
December 2001
Creator:
Abilene Philharmonic
Object Type:
Book
System:
The Portal to Texas History
Final progress report on Grant No. DE-FG02-81ER10229, U.S. Department of Energy Reactor Sharing Program at the University of Wisconsin, July 15, 2000 - May 31, 2001
The Reactor Sharing Program makes the facilities of the University of Wisconsin Nuclear Reactor Laboratory available to other educational institutions. Uses include direct instruction, student theses projects, and staff research projects. A list of using institutions and a brief description of use is given.
Date:
December 27, 2001
Creator:
Agasie, Robert J.
Object Type:
Report
System:
The UNT Digital Library
Integrated fuel processor development.
The Department of Energy's Office of Advanced Automotive Technologies has been supporting the development of fuel-flexible fuel processors at Argonne National Laboratory. These fuel processors will enable fuel cell vehicles to operate on fuels available through the existing infrastructure. The constraints of on-board space and weight require that these fuel processors be designed to be compact and lightweight, while meeting the performance targets for efficiency and gas quality needed for the fuel cell. This paper discusses the performance of a prototype fuel processor that has been designed and fabricated to operate with liquid fuels, such as gasoline, ethanol, methanol, etc. Rated for a capacity of 10 kWe (one-fifth of that needed for a car), the prototype fuel processor integrates the unit operations (vaporization, heat exchange, etc.) and processes (reforming, water-gas shift, preferential oxidation reactions, etc.) necessary to produce the hydrogen-rich gas (reformate) that will fuel the polymer electrolyte fuel cell stacks. The fuel processor work is being complemented by analytical and fundamental research. With the ultimate objective of meeting on-board fuel processor goals, these studies include: modeling fuel cell systems to identify design and operating features; evaluating alternative fuel processing options; and developing appropriate catalysts and materials. Issues and outstanding …
Date:
December 4, 2001
Creator:
Ahmed, S.; Pereira, C.; Lee, S. H. D. & Krumpelt, M.
Object Type:
Article
System:
The UNT Digital Library
Rhapsody for Piano and Small Orchestra
Rhapsody for Piano and Small Orchestra is a one-movement composition in a concerto fashion for seventeen players, and is about nine minutes in duration. The overall form of this work is A B C D E D1 C1 B1 A1. This work contains various hidden compositional devices such as the golden section principle and a palindrome structure. These devices are applied not only to the structure of the work, but also to the pitch related and rhythm-related matters. Also, certain melodic and rhythmic cells are employed for each section in the developmental procedure of that section almost exclusively. Since this work is a concerto-like piece, there are two cadenza-like passages for the piano with an accompanying solo instrument, which plays the obbligato passage. The following essay addresses the form, pitch materials, harmony, rhythm and technical difficulties, orchestration, and variant elements between the corresponding sections used in this work.
Date:
December 2001
Creator:
Ahn-Kim, Yong Hee
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Effect of thin-film coating on wear in EGR-contaminated oil.
Increased use of higher-efficiency compression ignition direct injection (CIDI) diesel engines instead of today's gasoline engines will result in reduced fuel consumption and greenhouse gases emissions. However, NO{sub x} and particulate exhaust emissions from diesel engines must be significantly reduced due to their possible adverse health effects. Exhaust gas recirculation (EGR) is an effective way to reduce NO{sub x} emissions from diesel engines, but the particulates and acidic exhaust products in the recirculated gas will contaminate engine lubricant oil by increasing the soot content and total acid number (TAN). These factors will increase the wear rate in many critical engine components and seriously compromise engine durability. We have investigated the use of commercially available thin and hard coatings (TiN, TiCN, TiAlN, and CrN) to mitigate the negative effects of EGR on wear. In tests with the four-ball machine according to ASTM D4172, we found that all the four coatings deposited on M-50 steel significantly reduced wear in EGR-contaminated oils when compared with uncoated M50 steel balls.
Date:
December 6, 2001
Creator:
Ajayi, O. O.; Aldajah, S. H.; Erdemir, A. & Fenske, G. R.
Object Type:
Article
System:
The UNT Digital Library
Performance of amorphous carbon coating in turbocompressor air bearings.
None
Date:
December 6, 2001
Creator:
Ajayi, O. O.; Woodford, J. B.; Erdemir, A. & Fenske, G. R.
Object Type:
Article
System:
The UNT Digital Library
Preservice teachers' attitudes toward and knowledge about cooperative learning in Kuwait: A quasi-experimental study
The issue of developing effective teacher preparation and professional programs by providing effective teaching and learning strategies to prepare teachers to teach in more challenging ways and change their old ways of teaching to more powerful ones has gained great attention around the world. Cooperative learning was one of the astonishing strategies introduced by many researchers to prepare effective teachers and to solve many educational problems. Teacher educators have taken different approaches to help teachers learn and change in powerful ways. They have focused on the knowledge and attitudes of teachers in promoting their adoption of new practices through educational courses, workshops, and training. After introducing the cooperative learning strategy through a training workshop, this study investigated the knowledge of and attitude of teachers at the College of Basic Education (CBE) in Kuwait towards cooperative learning as a new teaching and learning strategy. The literature reviewed the historical and practical use, theoretical roots, different models, and outcomes of cooperative learning. In addition, (1) teachers' knowledge and attitudes as factors affecting implementation and (2) preservice teacher preparation and training in the use of cooperative learning were reviewed. An attitude survey and a knowledge test were developed based on Bouas, (1993) survey …
Date:
December 2001
Creator:
Al-Dawoud, Afeefa
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
What Xe nanocrystals in Al can teach us in materials science.
None
Date:
December 4, 2001
Creator:
Allen, C. W.; Birtcher, R. C.; Dahmen, U.; Furuya, K.; Song, M. & Donnelly, S. E.
Object Type:
Article
System:
The UNT Digital Library
Stereotypes in Retail Print Advertising: The Effects of Gender and Physical Appearance on Consumer Perceptions
The retail sector spends millions of dollars each year advertising to consumers. This is a considerable investment for companies seeking effective ways to inform and persuade the consumer. Consequently, retailers need to develop creative message strategies and tactics that will positively affect consumer attitudes. One particular tactic available to retailers is the use of a spokesperson in the advertisement. Salespersons are used in numerous advertisements and can provide key benefits to an advertiser. However, to maximize these benefits, retailers need to carefully select the spokesperson that will be most effective for their store and product. This purpose of this research is to examine the characteristics that influence consumers' perceptions of print advertisements that include a spokesperson in the advertisement. Most of the past literature concerning spokespersons has concentrated on the consumer perspective of meeting and interacting with a living, breathing person. This research seeks to use the past research on salespeople to examine the spokesperson as a cue in a print advertisement. In this perspective, the consumer views the spokesperson from a visual-only perspective. The proposed experiment will utilize print advertisements from two retail businesses. More specifically the study will investigate how consumers react if the individual viewed in the …
Date:
December 2001
Creator:
Allen, Charlotte
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Mechanical properties of 20% cold-worked 316 stainless steel irradiated at low dose rate.
To assess the effects of long-term, low-dose-rate neutron exposure on mechanical strength and ductility, tensile properties were measured on irradiated 20% cold-worked Type 316 stainless steel. Samples were prepared from reactor core components retrieved from the EBR-II reactor following final shutdown. Sample locations were chosen to cover a dose range of 1-47 dpa at temperatures from 371-385 C and dose rates from 0.8-2.8 x 10{sup -7} dpa/s. These dose rates are about one order of magnitude lower than those of typical EBR-II in-core experiments. Irradiation caused hardening, with the yield strength (YS) following approximately the same trend as the ultimate tensile strength (UTS). At higher dose, the difference between the UTS and YS decreases, suggesting the work-hardening capability of the material is decreasing with increasing dose. Both the uniform elongation and total elongation decrease up to the largest dose. Unlike the strength data, the ductility reduction showed no signs of saturated at 20 dpa. While the material retained respectable ductility at 20 dpa, the uniform and total elongation decreased to <1 and <3%, respectively, at 47 dpa. Fracture in the 30 dpa specimen is mainly ductile but with local regions of mixed-mode failure, consisting of dimples and microvoids. The fracture …
Date:
December 11, 2001
Creator:
Allen, T. R.; Tsai, H.; Cole, J. I.; Ohta, J.; Dohi, K. & Kusanagi, H.
Object Type:
Article
System:
The UNT Digital Library
An investigation of the effects of SFAS No.121 on asset impairment reporting and stock returns
Prior to Statement of Financial Accounting Standards No.121 (SFAS No.121): Accounting for the Impairment of Long-Lived Assets and Long-Lived Assets to Be Disposed Of, managers had substantial discretion concerning the amount and timing of reporting writedowns of long-lived assets. Moreover, the frequency and dollar amount of asset writedown announcements that led to a large “surprise” caused the Financial Accounting Standards Board (FASB) and the Securities and Exchange Commission (SEC) to consider the need for a new standard to guide the recording of impairment of long-lived assets. This study has two primary objectives. First, it investigates the effects of SFAS No.121 on asset impairment reporting, examining whether SFAS No.121 reduces the magnitude and restricts the timing of reporting asset writedowns. Second, the study compares the information content (surprise element) of the asset impairment loss announcement as measured by cumulative abnormal returns (CAR) before and after the issuance of SFAS No.121. The findings provide support for the hypothesis that the FASB's new accounting standard does not affect the magnitude of asset writedown losses. The findings also provide support for the hypothesis that SFAS No. 121 does not affect the management choice of the timing for reporting asset writedowns. In addition, the findings …
Date:
December 2001
Creator:
Alshabani, Waleed Mohammad
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Relations between Child Molesters' Self-Perceptions and Treatment Engagement
Researchers emphasize the role of cognitions in sex offenders' molesting behaviors. Although cognitions are important, little research has examined child molesters' thoughts about themselves in relation to their engagement in treatment. In this study, the NEO-Personality Inventory (NEO-PI-R) was administered to 67 child molesters. Child sexual offenders rated themselves and their view of a typical child molester using two NEO-PI-R versions. The degree to which child sex offenders identify themselves with their view of a typical child molester, and this agreement's relation with engagement in treatment, were investigated. The view that child sex offenders hold about themselves in relation to a typical child molester showed no relation to treatment engagement or length of time in treatment. However, this self-perception was related to the number of children abused.
Date:
December 2001
Creator:
Altman, Adrianne
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Membership of the 107th Congress: A Profile
None
Date:
December 19, 2001
Creator:
Amer, Mildred L.
Object Type:
Report
System:
The UNT Digital Library
Southwest Retort, Volume 54, Number 4, December 2001
This publication of the Dallas-Fort Worth Section of the American Chemical Society includes information about research, prominent scientist, organizational business, and various other stories of interest to the community.
Date:
December 2001
Creator:
American Chemical Society. Dallas/Fort Worth Section.
Object Type:
Journal/Magazine/Newsletter
System:
The UNT Digital Library
EMSP Project Number 65015 Final Report: Three-dimensional position-sensitive germanium detectors
Critical to the DOE effort to deactivate and decommission the weapons complex facilities is the characterization of contaminated equipment and building structures. This characterization includes the isotopic identification of radioactive contaminants and the spatial mapping of these deposits. The penetrating nature of the gamma rays emitted by the radioactive contaminants provides a means to accomplish this task in a passive, non-destructive and non-intrusive manner. Through conventional gamma-ray spectroscopy, the radioactive isotopes in the contaminants can be identified by their characteristic gamma-ray signatures and the amount of each isotope by the intensity of the signature emission. With the addition of gamma-ray imaging, the spatial distributions of the isotopes can simultaneously be obtained. The ability to image radioactive contaminants can reduce waste as well as help ensure the adequate protection of workers and the environment. For example, if equipment and building materials have been subjected to radionuclide contamination, the entire structure must be treated as radioactive waste during demolition. However, only partial removal may be necessary if the contamination can be accurately located and identified. Hand-held survey instrumentation operated in the near vicinity of the contaminated objects is a common method to accomplish this task. This method necessitates long data acquisition times, …
Date:
December 7, 2001
Creator:
Amman, Mark & Luke, Paul N.
Object Type:
Report
System:
The UNT Digital Library
Individuals with Disabilities Education Act: Full Funding of State Formula
This report provides an overview of the full funding of state formula of the Individuals with Disabilities Education Act.
Date:
December 27, 2001
Creator:
Apling, Richard N.
Object Type:
Report
System:
The UNT Digital Library
Individuals with Disabilities Education Act: Full Funding of State Formula
This report discusses Individuals with Disabilities Education Act (IDEA), which assists participating states to serve school-age children with disabilities. The state funding formula, which provides a foundation amount based on states’ FY1999 grants and allocates remaining amounts based on states’ shares of school-age children and of school-age poor children, authorizes a maximum allotment per disabled child served of 40% of the national average per pupil expenditure (APPE). Annual appropriations have never been sufficient to provide each state its maximum allotment; in FY2002, states will receive approximately 16.5% of the national APPE per disabled child served. Some advocates for the program have called upon the Congress to fully fund the formula. An estimated $18.2 billion would be required to provide states the maximum allotment allowed per disabled child served in FY2002, about 2.4 times more than the appropriation of $7.5 billion for FY2002.
Date:
December 27, 2001
Creator:
Apling, Richard N.
Object Type:
Report
System:
The UNT Digital Library
Festival of Lights
Photograph of a scene during the Festival of Lights.
Date:
December 10, 2001
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Festival of Lights
Photograph of a scene during the Festival of Lights.
Date:
December 10, 2001
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Festival of Lights
Photograph of a scene during the Festival of Lights.
Date:
December 10, 2001
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Festival of Lights
Photograph of a scene during the Festival of Lights.
Date:
December 10, 2001
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Festival of Lights
Photograph of a scene during the Festival of Lights.
Date:
December 10, 2001
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Festival of Lights
Photograph of a scene during the Festival of Lights.
Date:
December 10, 2001
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History