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10,437 Matching Results
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20-kW Solar Photovoltaic Flat-Panel Power System for an Uninterruptible Power-System Load in El Paso, Texas. Phase Ii. System Fabrication. Final Report October 1, 1979-May 31, 1981
The system plans, construction, integration and test, and performance evaluation are discussed for the photovoltaic power supply at the Newman Power Station in El Paso, Texas. The system consists of 64 parallel-connected panels, each panel containing nine series-connected photovoltaic modules. The system is connected, through power monitoring equipment, to an existing DC bus that supplies uninterruptible power to a computer that controls the power generating equipment. The site is described and possible environmental hazards are assessed. Site preparation and the installation of the photovoltaic panels, electrical cabling, and instrumentation subsystems are described. System testing includes initial system checkout, module performance test, control system test. A training program for operators and maintenance personnel is briefly described, including visual aids. Performance data collection and analysis are described, and actual data are compared with a computer simulation. System drawings are included. (LEW)
Date:
December 1, 1981
Creator:
Risser, V.V.
Object Type:
Report
System:
The UNT Digital Library
[Female Dips a Pretzel into a Fineline Graphics Gloss Container #4, December 20, 1981]
Photograph of a female holding a pretzel by one of the holes and letting the excess white paint drip into the fineline graphics high gloss finish container. The container is on a table with a black paper mach background, the female is standing by the side of the table next to a light switch holding the pretzel on her right hand with two fingers.
Date:
December 20, 1981
Creator:
unknown
Object Type:
Photograph
System:
The UNT Digital Library
[Female Dips a Pretzel into a Fineline Graphics Gloss Container #2, December 20, 1981]
Photograph of a female holding a pretzel by one of the holes and letting the excess white paint drip into the fineline graphics high gloss finish container. The container is on a table with a black paper mach background, the female is standing by the side of the table next to a light switch holding the pretzel on her right hand with two fingers.
Date:
December 20, 1981
Creator:
unknown
Object Type:
Photograph
System:
The UNT Digital Library
[Female Dips a Pretzel into a Fineline Graphics Gloss Container #7, December 20, 1981]
Photograph of a female holding a pretzel by one of the holes and letting the excess white paint drip into the fineline graphics high gloss finish container. The container is on a table with a black paper mach background, the female is standing by the side of the table next to a light switch holding the pretzel on her right hand with two fingers.
Date:
December 20, 1981
Creator:
unknown
Object Type:
Photograph
System:
The UNT Digital Library
[Female Dips a Pretzel into a Fineline Graphics Gloss Container #6, December 20, 1981]
Photograph of a female holding a pretzel by one of the holes and letting the excess white paint drip into the fineline graphics high gloss finish container. The container is on a table with a black paper mach background, the female is standing by the side of the table next to a light switch holding the pretzel on her right hand with two fingers.
Date:
December 20, 1981
Creator:
unknown
Object Type:
Photograph
System:
The UNT Digital Library
[Female Dips a Pretzel into a Fineline Graphics Gloss Container #5, December 20, 1981]
Photograph of a female holding a pretzel by one of the holes and letting the excess white paint drip into the fineline graphics high gloss finish container. The container is on a table with a black paper mach background, the female is standing by the side of the table next to a light switch holding the pretzel on her right hand with two fingers.
Date:
December 20, 1981
Creator:
unknown
Object Type:
Photograph
System:
The UNT Digital Library
[Female Dips a Pretzel into a Fineline Graphics Gloss Container #8, December 20, 1981]
Photograph of a female holding a pretzel by one of the holes and letting the excess white paint drip into the fineline graphics high gloss finish container. The container is on a table with a black paper mach background, the female is standing by the side of the table next to a light switch holding the pretzel on her right hand with two fingers.
Date:
December 20, 1981
Creator:
unknown
Object Type:
Photograph
System:
The UNT Digital Library
[Female Dips a Pretzel into a Fineline Graphics Gloss Container #9, December 20, 1981]
Photograph of a female holding a pretzel by one of the holes and letting the excess white paint drip into the fineline graphics high gloss finish container. The container is on a table with a black paper mach background, the female is standing by the side of the table next to a light switch holding the pretzel on her right hand with two fingers.
Date:
December 20, 1981
Creator:
unknown
Object Type:
Photograph
System:
The UNT Digital Library
[Female Dips a Pretzel into a Fineline Graphics Gloss Container #3, December 20, 1981]
Photograph of a female holding a pretzel by one of the holes and letting the excess white paint drip into the fineline graphics high gloss finish container. The container is on a table with a black paper mach background, the female is standing by the side of the table next to a light switch holding the pretzel on her right hand with two fingers.
Date:
December 20, 1981
Creator:
unknown
Object Type:
Photograph
System:
The UNT Digital Library
[Woman pipping a pretzel in white paint]
Photograph of a female holding a pretzel by one of the holes and letting the excess white paint drip into the fineline graphics high gloss finish container. The container is on a table with a black paper mach background, the female is standing by the side of the table next to a light switch holding the pretzel on her right hand with two fingers.
Date:
December 20, 1981
Creator:
unknown
Object Type:
Photograph
System:
The UNT Digital Library
[Summary of the Advisory Board Meeting, December 7, 1987]
Summary of the Texas Academy of Mathematics and Science Advisory Board meeting of December 7, 1987. The salient points of the general discussion are summarized.
Date:
December 7, 1987
Creator:
unknown
Object Type:
Text
System:
The UNT Digital Library
[Meeting of the Advisory Board]
Papers regarding TAMS, including an agenda for the meeting of the Advisory Board of the Texas Academy of Mathematics and Science on December 7, 1987; a list of the board members; and an executive summary regarding admission, curriculum, and student life.
Date:
December 7, 1987
Creator:
unknown
Object Type:
Text
System:
The UNT Digital Library
[Letter from Rogers Redding to Jack Davis, December 3, 1987]
Letter from Rogers Redding to Jack Davis, on December 3, 1987, summarizing their conversation about the need for more office space in Marquis Hall for the Texas Academy of Mathematics and Science. A diagram is attached.
Date:
December 3, 1987
Creator:
Redding, Rogers W.
Object Type:
Letter
System:
The UNT Digital Library
[Letter from Rogers Redding, December 1, 1987]
Letter from Rogers Redding to James Miller, James Muro, Walt Parker, and Thomas Preston, on December 1, 1987, reminding them of an upcoming TAMS Advisory Board luncheon. An agenda is attached.
Date:
December 1, 1987
Creator:
Redding, Rogers W.
Object Type:
Letter
System:
The UNT Digital Library
[Memorandum from Rogers Redding, December 1, 1987]
Memorandum from Rogers Redding to James Miller, James Muro, Walt Parker, and Thomas Preston, on December 1, 1987, reminding them of the TAMS Advisory Board luncheon, and attaching an agenda.
Date:
December 1, 1987
Creator:
Redding, Rogers W.
Object Type:
Letter
System:
The UNT Digital Library
Southwest Retort, Volume 39, Number 9, December 1986
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 1986
Creator:
American Chemical Society. Dallas/Fort Worth Section.
Object Type:
Journal/Magazine/Newsletter
System:
The UNT Digital Library
Southwest Retort, Volume 40, Number 9, December 1987
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 1987
Creator:
American Chemical Society. Dallas/Fort Worth Section.
Object Type:
Journal/Magazine/Newsletter
System:
The UNT Digital Library
Students finish high school with college credit
Article by Kristi Burchfield in the Denton High School Newspaper, giving details about the newly established Texas Academy of Mathematics and Science at the University of North Texas.
Date:
December 9, 1988
Creator:
Burchfield, Kristi
Object Type:
Clipping
System:
The UNT Digital Library
[Letter from Richard L. Simms to Kenneth Wheeler, December 3, 1989]
Letter from Richard L. Simms to Kenneth Wheeler, on December 3, 1989, discussing an upcoming conference in Washington, and sending Wheeler information on the Texas Academy of Mathematics and Science.
Date:
December 3, 1989
Creator:
Simms, Richard L.
Object Type:
Letter
System:
The UNT Digital Library
[Memo from Rogers Redding, December 9, 1988]
Memo from Rogers Redding, on December 9, 1988. An announcement that the University of Central Florida is hiring a new Dean of the College of Arts and Sciences, and a letter from James R. Miller recommending Redding for the position, are included. A handwritten note on the first page reads: "Jim - Many Thanks! - Rog".
Date:
December 9, 1988
Creator:
Redding, Rogers W.
Object Type:
Letter
System:
The UNT Digital Library
[Letter to University Committee of the Faculty Senate, Alfred Hurley, and the Board of Regents of UNT, December 16, 1988]
Letter to the University Committee of the Faculty Senate, Chancellor Alfred F. Hurley, and the Board of Regents of the University of North Texas, on December 16, 1988, nominating Julian C. Stanley for an honorary doctorate.
Date:
December 16, 1988
Creator:
unknown
Object Type:
Letter
System:
The UNT Digital Library
[Photograph 2012.201.B0150.0654]
Photograph used for a story in the Daily Oklahoman newspaper.
Date:
December 27, 1983
Creator:
Beckel, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Development of a Physical Science Curriculum for Interactive Videodisc Delivery: A Case Study
Using a case study approach, this investigation focused on the deliberations and decision-making processes involved in the development of a physical science curriculum to be delivered by interactive videodiscs. The mediating factors that influenced the developmental processes included the participants and their perceptions, their decisions and factors influencing their decisions. The Curriculum and Instruction Advisory Committee of the Texas Learning Technology Group was selected as the subject of this study which used qualitative data collection methods. Data collection included participant observation of curriculum meetings followed by structured interviews of the participants. Document analyses were triangulated with the observations and interviews to ascertain influences on decision-making processes. Developmental processes indicated the emergence of staff and committee procedures. Procedures were influenced by school district and personal philosophies, teacher and student needs, and constraining factors such as state Developmental processes indicated the emergence of staff and committee procedures. Procedures were influenced by school district and personal philosophies, teacher and student needs, and constraining factors such as state mandates. Other influencing factors included research, tradition, and politics. Core curriculum was to be delivered by interactive videodiscs and include remediation and enrichment loops along with laboratory simulations. Participants stressed that students perform traditional laboratory experiments …
Date:
December 1986
Creator:
Williams, Vanyelle Coughran
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Effect of Using Class Discussion as a Pre-Writing Activity in Teaching Composition to ESL Students
This study examines the effect of class discussion as a pre-writing activity on actual writing performance. The experiment was conducted with all the Level 3 and Level 4 students enrolled in the Intensive English Language Institute of North Texas State University in the Spring, 1986 semester. Cochrans C test was performed to test significant differences between groups at the beginning of this test. Multivariate analysis of variance tests were used to determine the treatment effect between and within groups, and a matched t-test was also utilized to analyze the difference within tests. Pearson product moment correlation coefficient was calculated to determine the relationship between the discussion activity score and the actual writing score. Analysis of covariance tests were used to determine which variance of discussion activities had greater effect on the actual writing score.
Date:
December 1986
Creator:
Bang, Hwa-Ja Park
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library