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Estancia Basin dynamic water budget.

Description: The Estancia Basin lies about 30 miles to the east of Albuquerque, NM. It is a closed basin in terms of surface water and is somewhat isolated in terms of groundwater. Historically, the primary natural outlet for both surface water and groundwater has been evaporation from the salt lakes in the southeastern portion of the basin. There are no significant watercourses that flow into this basin and groundwater recharge is minimal. During the 20th Century, agriculture grew to become the major user of groundwater in the basin. Significant declines in groundwater levels have accompanied this agricultural use. Domestic and municipal use of the basin groundwater is increasing as Albuquerque population continues to spill eastward into the basin, but this use is projected to be less than 1% of agricultural use well into the 21st Century. This Water Budget model keeps track of the water balance within the basin. The model considers the amount of water entering the basin and leaving the basin. Since there is no significant surface water component within this basin, the balance of water in the groundwater aquifer constitutes the primary component of this balance. Inflow is based on assumptions for recharge made by earlier researchers. Outflow from the basin is the summation of the depletion from all basin water uses. The model user can control future water use within the basin via slider bars that set values for population growth, water system per-capita use, agricultural acreage, and the types of agricultural diversion. The user can also adjust recharge and natural discharge within the limits of uncertainty for those parameters. The model runs for 100 years beginning in 1940 and ending in 2040. During the first 55 years model results can be compared to historical data and estimates of groundwater use. The last 45 years are predictive. ...
Date: September 1, 2004
Creator: Thomas, Richard P.
Partner: UNT Libraries Government Documents Department

Independent Technical Investigation of the Puna Geothermal Venture Unplanned Steam Release, June 12 and 13, 1991, Puna, Hawaii

Description: On June 24, 1991, a third-party investigation team consisting of Richard P. Thomas, Duey E. Milner, James L. Moore, and Dick Whiting began an investigation into the blowout of well KS-8, which occurred at the Puna Geothermal Venture (PGV) site on June 12, 1991, and caused the unabated release of steam for a period of 31 hours before PGV succeeded in closing in the well. The scope of the investigation was to: (a) determine the cause(s) of the incident; (b) evaluate the adequacy of PGVs drilling and blowout prevention equipment and procedures; and (c) make recommendations for any appropriate changes in equipment and/or procedures. This report finds that the blowout occurred because of inadequacies in PGVs drilling plan and procedures and not as a result of unusual or unmanageable subsurface geologic or hydrologic conditions. While the geothermal resource in the area being drilled is relatively hot, the temperatures are not excessive for modem technology and methods to control. Fluid pressures encountered are also manageable if proper procedures are followed and the appropriate equipment is utilized. A previous blowout of short duration occurred on February 21, 1991, at the KS-7 injection well being drilled by PGV at a depth of approximately 1600'. This unexpected incident alerted PGV to the possibility of encountering a high temperature, fractured zone at a relatively shallow depth. The experience at KS-7 prompted PGV to refine its hydrological model; however, the drilling plan utilized for KS-8 was not changed. Not only did PGV fail to modify its drilling program following the KS-7 blowout, but they also failed to heed numerous ''red flags'' (warning signals) in the five days preceding the KS-8 blowout, which included a continuous 1-inch flow of drilling mud out of the wellbore, gains in mud volume while pulling stands, and gas entries while circulating ...
Date: July 1, 1991
Creator: Thomas, Richard; Whiting, Dick; Moore, James & Milner, Duey
Partner: UNT Libraries Government Documents Department

A Study Of The Effects Of High School Scheduling Systems On Achievement Rates, Attendance Rates, And Dropout Rates

Description: This study attempted to determine if the type of class schedule (traditional, A/B block, or accelerated block) used in Texas public high schools significantly affects students' achievement results, attendance rates and dropout rates. One thousand four hundred ninety (1490) Texas high school principals were surveyed to determine the type of schedule currently in use on each campus, the type of schedule previously used on each campus, the length of time the current schedule has been in place on each campus, and the length of time that the previous schedule was used on each campus. This study is particularly significant in that this research provides information to assist principals in determining if block scheduling is instrumental in improving achievement in reading and mathematics, in improving attendance and in lowering dropout rates. The results of the study indicated that the use of a particular type of schedule: traditional, A/B block, or accelerated block is not directly correlated to improved achievement, attendance, or dropout rates. An expectation that the implementation of a traditional, A/B block, or accelerated block schedule will be the sole factor to cause improved student achievement, improved attendance rates or improved dropout rates is inappropriate. Ultimately, campus and districts officials must assure that effective teaching practices are occurring on each campus, regardless of the schedule type. Currently, a projected (Texas) state education funding shortfall is causing school district administrators to review cost-saving options for the 2003 - 2004 fiscal year. There is discussion in many districts regarding the fact that traditional scheduling is more economical than A/B block or accelerated block scheduling. The results of this study indicate that the decision to move campuses from A/B block or accelerated block to traditional scheduling might be made as a cost-saving move without negatively impacting student achievement, attendance rates or dropout rates.
Date: May 2003
Creator: Kelchner, Thomas Richard
Partner: UNT Libraries

An Experimental Investigation of the Relationship Between Perception of Parental Acceptance and Social Acceptability of Adolescents

Description: The purpose of this study is twofold. One is that of developing an instrument for determining a child's concept of how he is thought of by his mother and his father; in other words, a method of measuring parental acceptance as it is perceived by the child, himself. The development of this instrument will be discussed in Chapter IV. The second purpose of this study is that of determining whether or not there is any significant relationship between the child's perception of parental acceptance and the social acceptability of the child, as measured by a sociometric instrument.
Date: 1955
Creator: Throp, Thomas Richard
Partner: UNT Libraries

A Reservoir Assessment of the Geysers Geothermal Field

Description: Big Sulphur Creek fault zone, in The Geysers Geothermal field, may be part of a deep-seated, wrench-style fault system. Hydrothermal fluid reservoir may rise through conduits beneath the five main anomalies associated with the Big Sulphur Creek wrench trend. Upon moderately dipping, fracture network. Condensed steam at the steep reservoir flank drains back to the hot water table. These flanks are defined roughly by marginally-producing geothermal wells. Field extensions are expected to be on the southeast and northwest. Some geophysical anomalies (electrical resistivity and audio-magnetotelluric) evidently are caused by the hot water geothermal field or zones of altered rocks; others (gravity, P-wave delays, and possibly electrical resistivity) probably represent the underlying heat source, a possible magma chamber; and others (microearthquake activity) may be related to the steam reservoir. A large negative gravity anomaly and a few low-resitivity anomalies suggest areas generally favorable for the presence of steam zones, but these anomalies apparently do not directly indicate the known steam reservoir. Monitoring gravity and geodetic changes with time and mapping microearthquake activity are methods that show promise for determining reservoir size, possible recharge, production lifetime, and other characteristics of the known stream field. Seismic reflection data may contribute to the efficient exploitation of the field by identifying fracture zones that serve as conduits for the steam. (DJE-2005)
Date: January 1, 1981
Creator: Thomas, Richard P.; Chapman, Rodger H.; Dykstra, Herman & Stockton, A.D.
Partner: UNT Libraries Government Documents Department

Integrating Monitoring and Decision Modeling within a Cooperative Framework: Promoting Transboundary Water Management and Avoiding Regional Conflict

Description: Surface and groundwater resources do not recognize political boundaries. Where nature and boundary cross, tension over shared water resources can erupt. Such tension is exacerbated in regions where demand approaches or exceeds sustainable supplies of water. Establishing equitable management strategies can help prevent and resolve conflict over shared water resources. This paper describes a methodology for addressing transboundary water issues predicated on the integration of monitoring and modeling within a framework of cooperation. Cooperative monitoring begins with agreement by international scientists and/or policy makers on transboundary monitoring goals and strategies; it leads to the process of obtaining and sharing agreed-upon information among parties with the purpose of providing verifiable and secure data. Cooperative modeling is the process by which the parties jointly interpret the data, forecast future events and trends, and quantify cause and effect relationships. Together, cooperative monitoring and modeling allow for the development and assessment of alternative management and remediation strategies that could form the basis of regional watershed agreements or treaties. An example of how this multifaceted approach might be used to manage a shared water resource is presented for the Kura River basin in the Caucasus.
Date: March 1, 2001
Creator: TIDWELL, VINCENT C.; SALERNO, REYNOLDS M.; PASSELL, HOWARD D.; LARSON, KELLI L.; KALININA, ELENA ARKADIEVNA; WOLF, AARON T. et al.
Partner: UNT Libraries Government Documents Department

Ensemble: 1986-10-14 - Spectrum 1

Description: Spectrum recital performed at the UNT College of Music Concert Hall.
Access: This item is restricted to UNT Community Members. Login required if off-campus.
Date: October 14, 1986
Creator: Carson, Michael; Carr Jr., Richard E.; Griffith Glenn; Leung, Chi Cheung; Wilks, Robert & Rudnik, Isi
Partner: UNT Music Library

Test Results of LARP 3.6 m Nb3Sn Racetrack Coils Support by Full-length and Segmented Shell Structures

Description: As part of the LHC Accelerator Research Program (LARP) to build a high performance quadrupole magnet with Nb{sub 3}Sn conductor, a pair of 3.6 m-long Nb{sub 3}Sn racetrack coils has been made at Brookhaven National Laboratory (BNL) and installed in two shell-type support structures built by Lawrence Berkeley National Laboratory (LBL). These magnet assemblies have been tested at 4.5 K at BNL to gauge the effect of extended length and prestress on the mechanical performance of the long structure compared to earlier short models. This paper presents the results of quench testing and compares the overall performance of the two versions of the support structure. We also summarize the shell strain measurements and discuss the variation of quench current with ramp rate.
Date: August 17, 2008
Creator: Muratore, Joseph F.; Ambrosio, Giorgio; Anerella, Michael; Barzi, Emanuela; Bossert, Rodger; Caspi, Shlomo et al.
Partner: UNT Libraries Government Documents Department