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Some Comments on the La Primavera Geothermal Field, Mexico
The La Primavera geothermal field is located about 20 km west of the city of Guadalajara, Jalisco, in the western part of the Mexican Neovolcanic Axis. Initial results of five deep exploration wells (down to 2000 m depth) were very promising; measured downhole temperatures exceed 300{degrees}C. During production, however, downhole temperatures dropped, and the chemistry of the fluids changed. The analysis of geologic, mineralogic, geochemical, and well completion data indicate that colder fluids flow down the wellbore from shallower aqifers cooling the upper zones of the gothermal reservoir. This problem is attributed to inadequate well completions. Doubts have arisen about continuing the exploration of the field because of the somewhat disappointing drilling results. However, a more thorough analysis of all available data indicates that a good geothermal prospect might exist below 3000 m, and that it could be successfully developed with appropriately located and completed wells.
Date:
December 15, 1983
Creator:
A., Bernardo Dominguez & Lippmann, Marcelo J.
Object Type:
Article
System:
The UNT Digital Library
[News release with handwritten notes: The President is planning to terminate HOPWA]
A copy of a newspaper clipping and news release concerning President Bill Clinton seeking to terminate housing programs for people with AIDS.
Date:
December 15, 1994
Creator:
AIDS Services of Dallas
Object Type:
Text
System:
The UNT Digital Library
Crustal Rock Fracture Mechanics for Design and Control of Artificial Subsurface Cracks in Geothermal Energy Extraction Engineering ({Gamma}-Project)
Recently a significant role of artificial and/or natural cracks in the geothermal reservoir has been demonstrated in the literatures (Abe, H., et al., 1983, Nielson, D.L. and Hullen, J.B., 1983), where the cracks behave as fluid paths and/or heat exchanging surfaces. Until now, however, there are several problems such as a design procedure of hydraulic fracturing, and a quantitative estimate of fluid and heat transfer for reservoir design. In order to develop a design methodology of geothermal reservoir cracks, a special distinguished research project, named as ''{Lambda}-Project'', started at Tohoku University (5 years project, 1983-1988). In this project a basic fracture mechanics model of geothermal reservoir cracks is being demonstrated and its validation is being discussed both theoretically and experimentally. This paper descibes an outline of ''{Lambda}-Project''.
Date:
December 15, 1983
Creator:
Abe, Hiroyuki & Takahashi, Hideaki
Object Type:
Article
System:
The UNT Digital Library
Behaviors of Crack-Like Reservoirs by Means of Fracturing at Nigorikawa and Kakkonda Geothermal Fields
A basic concept of the geothermal reservoir as a set of cracks is first presented. Extensions of subsurface cracks during well stimulation treatments at Nigorikawa(Mori) and closure operations of production well-head valves at Kakkonda are analysed and their behaviors are demonstrated based on results of long-distance AE Measurements.
Date:
December 15, 1983
Creator:
Abe, Hiroyuki; Takahashi, Hideaki; Nakatsuka, Katsuto; Niitsuma, Hiroaki & Takanohashi, Morihiko
Object Type:
Article
System:
The UNT Digital Library
[Account Statement for Abercrombie & Fitch Co., December 1952]
Account statement for Abercrombie & Fitch Co. listing previous balance, returns, and balance due.
Date:
December 15, 1952
Creator:
Abercrombie & Fitch Co.
Object Type:
Text
System:
The Portal to Texas History
Indian Chieftain. (Vinita, Indian Terr.), Vol. 6, No. 14, Ed. 1, Thursday, December 15, 1887
Weekly newspaper from Vinita, Indian Territory. Coverage includes local, territory, and United States news, along with advertising.
Date:
December 15, 1887
Creator:
Adair, John L.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Pawhuska Daily Journal-Capital (Pawhuska, Okla.), Vol. 72, No. 245, Ed. 1 Tuesday, December 15, 1981
Daily newspaper from Pawhuska, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 15, 1981
Creator:
Adams, Bill
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Pawhuska Daily Journal-Capital (Pawhuska, Okla.), Vol. 73, No. 247, Ed. 1 Wednesday, December 15, 1982
Daily newspaper from Pawhuska, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 15, 1982
Creator:
Adams, Bill
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Harper County Democrat (Buffalo, Okla.), Vol. 10, No. 37, Ed. 1 Friday, December 15, 1916
Weekly newspaper from Buffalo, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 15, 1916
Creator:
Adams, E. Lee
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Democrat News (Sapulpa, Okla.), Vol. 40, No. 6, Ed. 1 Thursday, December 15, 1949
Weekly newspaper from Sapulpa, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 15, 1949
Creator:
Adams, Ellis
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
[Letter from J. A. Adams to Truett Latimer, December 15, 1961]
Letter from J. A. Adams to Truett Latimer showing appreciation for the weekend they spent together.
Date:
December 15, 1961
Creator:
Adams, J. A.
Object Type:
Letter
System:
The Portal to Texas History
The Forgan Advocate (Forgan, Okla.), Vol. 6, No. 9, Ed. 1 Thursday, December 15, 1932
Weekly newspaper from Forgan, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 15, 1932
Creator:
Adams, Marie
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Edmond Enterprise (Edmond, Okla.), Vol. 2, No. 45, Ed. 1 Thursday, December 15, 1927
Weekly newspaper from Edmond, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 15, 1927
Creator:
Adamson, Royce B.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Edmond Enterprise (Edmond, Okla.), Vol. 21, No. 46, Ed. 1 Thursday, December 15, 1921
Weekly newspaper from Edmond, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 15, 1921
Creator:
Adamson, Royce B.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Power Contro Energy Management and Market Systems
More efficient use of the nation's electrical energy infrastructure will result in minimizing the cost of energy to the end user. Using real time electrical market information coupled with defined rules, market opportunities can be identified that provide economic benefit for both users and marketers of electricity. This report describes the design of one such system and the features a fully functional system would provide. This report documents several investigated methods of controlling load diversity or shifting.
Date:
December 15, 2005
Creator:
Addison, Tom & Stanbury, Andrew
Object Type:
Report
System:
The UNT Digital Library
Urban Form Energy Use and Emissions in China: Preliminary Findings and Model Proof of Concept
Urbanization is reshaping China's economy, society, and energy system. Between 1990 and 2008 China added more than 300 million new urban residents, bringing the total urbanization rate to 46%. The ongoing population shift is spurring energy demand for new construction, as well as additional residential use with the replacement of rural biomass by urban commercial energy services. This project developed a modeling tool to quantify the full energy consequences of a particular form of urban residential development in order to identify energy- and carbon-efficient modes of neighborhood-level development and help mitigate resource and environmental implications of swelling cities. LBNL developed an integrated modeling tool that combines process-based lifecycle assessment with agent-based building operational energy use, personal transport, and consumption modeling. The lifecycle assessment approach was used to quantify energy and carbon emissions embodied in building materials production, construction, maintenance, and demolition. To provide more comprehensive analysis, LBNL developed an agent-based model as described below. The model was applied to LuJing, a residential development in Jinan, Shandong Province, to provide a case study and model proof of concept. This study produced results data that are unique by virtue of their scale, scope and type. Whereas most existing literature focuses on building-, …
Date:
December 15, 2010
Creator:
Aden, Nathaniel; Qin, Yining & Fridley, David
Object Type:
Report
System:
The UNT Digital Library
Advancing Reverse Electrowetting-on-Dielectric from Planar to Rough Surface Electrodes for High Power Density Energy Harvesting
Article presenting electrical and multiphysics-based modeling approaches of REWOD energy harvester using structured rough surface electrodes. By enhancing the overall available surface area, an increase in the overall capacitance is achieved.
Date:
December 15, 2021
Creator:
Adhikari, Pashupati R.; Patwary, Adnan B.; Kakaraparty, Karthik; Gunti, Avinash; Reid, Russell C. & Mahbub, Ifana
Object Type:
Article
System:
The UNT Digital Library
Technical Feasibility and Economic Potential of the Variable Moderator Reactor: Final Report
Foreword: This report covering the technical feasibility and economic potential of the VMR completes the requirements of Phases II and III of the program outlined in American-Standard Proposal No. P-470A.
Date:
December 15, 1960
Creator:
Advanced Technology Laboratories
Object Type:
Report
System:
The UNT Digital Library
Restoring Sustainable Forests on Appalachian Mined Lands for Wood Products, Renewable Energy, Carbon Sequestration, and Other Ecosystems Services Quarterly Report
The overall purpose of this project is to evaluate the biological and economic feasibility of restoring high-quality forests on mined land, and to measure carbon sequestration and wood production benefits that would be achieved from forest restoration procedures. In this segment of work, our goal was to review methods for estimating tree survival, growth, yield and value of forests growing on surface mined land in the eastern coalfields of the USA, and to determine the extent to which carbon sequestration is influenced by these factors. Public Law 95-87, the Surface Mining Control and Reclamation Act of 1977 (SMCRA), mandates that mined land be reclaimed in a fashion that renders the land at least as productive after mining as it was before mining. In the central Appalachian region, where prime farmland and economic development opportunities for mined land are scarce, the most practical land use choices are hayland/pasture, wildlife habitat, or forest land. Since 1977, the majority of mined land has been reclaimed as hayland/pasture or wildlife habitat, which is less expensive to reclaim than forest land, since there are no tree planting costs. As a result, there are now hundreds of thousands of hectares of grasslands and scrublands in various …
Date:
December 15, 2003
Creator:
Aggett, Jonathan
Object Type:
Report
System:
The UNT Digital Library
The Odem-Edroy Times (Odem, Tex.), Vol. 39, No. 50, Ed. 1 Thursday, December 15, 1988
Weekly newspaper from Odem, Texas that includes local, state, and national news along with advertising.
Date:
December 15, 1988
Creator:
Aguilar, Rebecca & Hall, Page
Object Type:
Newspaper
System:
The Portal to Texas History
Review of Program and Administrative Activities of the Economic Opportunities Development Corporation
Report on the activities of the Economic Opportunities Development Corporation from 1977-1978 for Representative Henry B. Gonzalez, from the United States General Accounting Office.
Date:
December 15, 1977
Creator:
Ahart, Gregory J.
Object Type:
Text
System:
The Portal to Texas History
[Photograph 2012.201.B0094.0576]
Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "BLUE BIRDS CITY"
Date:
December 15, 1970
Creator:
Aker, Joe
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0094.0578]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "CAMP FIRE CHRISTMAS fro mental health patients in Oklahoma mental hospitals is partially assured by Blue Birds and Brownies decorating boxes for presidents."
Date:
December 15, 1970
Creator:
Aker, Joe
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0104.0241]
Photograph used for a story in the Oklahoma Times newspaper. Caption: "Tony Brantley - Putnam City"
Date:
December 15, 1971
Creator:
Aker, Joe
Object Type:
Photograph
System:
The Gateway to Oklahoma History