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Petroleum and Natural-Gas Fields in Wyoming

Description: Report issued by the Bureau of Mines discussing 75 petroleum and natural gas fields studied throughout Wyoming. History, geographic location, geology, drilling methods, and detailed analyses are presented. This report includes tables, maps, and illustrations.
Date: 1941
Creator: Espach, Ralph H. & Nichols, H. Dale
Partner: UNT Libraries Government Documents Department
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Complete Ordered Fields

Description: The purpose of this thesis is to study the concept of completeness in an ordered field. Several conditions which are necessary and sufficient for completeness in an ordered field are examined. In Chapter I the definitions of a field and an ordered field are presented and several properties of fields and ordered fields are noted. Chapter II defines an Archimedean field and presents several conditions equivalent to the Archimedean property. Definitions of a complete ordered field (in terms of a least upper bound) and the set of real numbers are also stated. Chapter III presents eight conditions which are equivalent to completeness in an ordered field. These conditions include the concepts of nested intervals, Dedekind cuts, bounded monotonic sequences, convergent subsequences, open coverings, cluster points, Cauchy sequences, and continuous functions.
Date: August 1977
Creator: Arnold, Thompson Sharon
Partner: UNT Libraries
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Reduced Ideals and Periodic Sequences in Pure Cubic Fields

Description: The “infrastructure” of quadratic fields is a body of theory developed by Dan Shanks, Richard Mollin and others, in which they relate “reduced ideals” in the rings and sub-rings of integers in quadratic fields with periodicity in continued fraction expansions of quadratic numbers. In this thesis, we develop cubic analogs for several infrastructure theorems. We work in the field K=Q(), where 3=m for some square-free integer m, not congruent to ±1, modulo 9. First, we generalize the definition of a reduced ideal so that it applies to K, or to any number field. Then we show that K has only finitely many reduced ideals, and provide an algorithm for listing them. Next, we define a sequence based on the number alpha that is periodic and corresponds to the finite set of reduced principal ideals in K. Using this rudimentary infrastructure, we are able to establish results about fundamental units and reduced ideals for some classes of pure cubic fields. We also introduce an application to Diophantine approximation, in which we present a 2-dimensional analog of the Lagrange value of a badly approximable number, and calculate some examples.
Date: August 2015
Creator: Jacobs, G. Tony
Partner: UNT Libraries
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Open Cavity Solutions to the Rf in Magnetic Field Problem.

Description: It has been observed [1] that breakdown in an 805 MHz pill-box cavity occurs at much lower gradients as an external axial magnetic field is increased. This effect was not observed with on open iris cavity. It is proposed that this effect depends on the relative angles of the magnetic and maximum electric fields: parallel in the pill-box case; at an angle in the open iris case. If so, using an open iris structure with solenoid coils in the irises should perform even better. A lattice, using this principle, is presented, for use in 6D cooling for a Muon Collider. Experimental layouts to test this principle are proposed.
Date: August 6, 2007
Creator: Palmer, R. B.; Berg, J. S.; Fernow, R. C.; Gallardo, J. C. & Kirk, H. G.
Partner: UNT Libraries Government Documents Department
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Design of the National Bureau of Standards Isotropic Magnetic Field Meter (MFM-10) 300 kHz to 100 MHz

Description: From introduction: In this report the following will he discussed: (1) design consideration of the broadband magnetic field sensor, (2) overall design of the magnetic field meter, (3) performance of the meter, (4) calibration and operating procedures, (5) alignment and adjustment procedures, and (6) summary and conclusions.
Date: October 1985
Creator: Cruz, J. E.; Driver, L. D. & Kanda, Motohisa
Partner: UNT Libraries Government Documents Department
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Analysis of Oil Production in the Near-Depleted Mexia-Powell Fault-Line Fields of Texas

Description: Report issued by the U.S. Bureau of Mines on the oil fields located near the Mexia-Powell fault line in Texas. Properties of the oil fields, including geology and oil production, are presented. This report includes tables, graphs, maps, and illustrations.
Date: August 1943
Creator: Hill, Harry Blackburn & Guthrie, R. K.
Partner: UNT Libraries Government Documents Department
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Survey of the acoustic near field of three nozzles at a pressure ratio of 30

Description: The sound pressures radiating from the exhaust streams of two convergent-divergent and one convergent nozzle were measured. Exit diameters were 1.206 in. for the expanded nozzle and 0.625 in. for the convergent nozzle. The results are presented in a series of contour maps of overall and fine 1/3-octave-band sound pressures. The location of the source of the noise in each 1/3-octave band in the frequency range of 30 to 16,000 cps and the total power radiated were determined and compared with those of subsonic jets.
Date: April 1957
Creator: Mull, Harold R. & Erickson, John C., Jr.
Partner: UNT Libraries Government Documents Department
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Waste of Oil and Gas in the Mid-Continent Fields

Description: Technical paper issued by the Bureau of Mines over studies of waste in oil and gas fields in the mid-continent area. As stated in the introduction, this report "describes the general amounts and kinds of waste, and attempts to show the importance of conserving these natural resources" (p. 5). This paper includes tables, maps, illustrations, and photographs.
Date: May 1914
Creator: Blatchley, Raymond S.
Partner: UNT Libraries Government Documents Department
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Petroleum and Natural Gas Fields in Wyoming

Description: Report issued by the Bureau of Mines over the oil and gas fields of Wyoming. As stated in the summary, "this study contains individual reports on 271 oil and gas fields in Wyoming. The location of each field is given; and, where available, maps of the fields, surface formations, and elevations" (p. 1).
Date: 1960
Creator: Biggs, Paul & Espach, Ralph H.
Partner: UNT Libraries Government Documents Department
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New advances in three dimensional transient electromagnetic inversion

Description: Inversion of transient electromagnetic (TEM) data sets to image the subsurface three-dimensional (3-D) electrical conductivity and magnetic permeability properties can be done directly in the time domain. The technique, first introduced by Wang et al. (1994) for causal and diffusive electromagnetic fields and subsequently implemented by Zhdanov and Portniaguine (1997) in the framework of iterative migration, is based upon imaging methods originally developed for seismic wavefields (Claerbout, 1971; Tarantola, 1984). In this paper we advance the original derivations of Wang et al. (1994) and Zhdanov and Portniaguine (1997) to treat non-causal TEM fields, as well as correct a flaw in the theory for treatment of magnetic field data. Our 3D imaging scheme is based on a conjugate-gradient search for the minimum of an error functional involving EM measurements governed by Maxwell's equations without displacement currents. Treatment for magnetic field, voltage (time derivative of the magnetic field) and electric field data are given. The functional can be computed by propagating the data errors back into the model in reverse time along with a DC field, sourced by the integrated data errors over the measurement time range. By correlating these fields, including the time-integrated back-propagated fields, with the corresponding incident field and its initial value at each image point, efficient computational forms for the gradients are developed. The forms of the gradients allow for additional efficiencies when voltage and electric field data are inverted. In such instances the combined data errors can be back-propagated jointly, significantly reducing the computation time required to solve the inverse problem. The inversion algorithm is applied to the long offset transient electromagnetic measurement (LOTEM) configuration thereby demonstrating its capability in inverting non-causal field measurements of electric field and voltage, sourced by a grounded wire, over complex structures. Findings also show that migration, without iteration or preconditioning, is …
Date: June 16, 2004
Creator: Newman, Gregory A. & Commer, Michael
Partner: UNT Libraries Government Documents Department
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Underground Wastes in Oil and Gas Fields and Methods of Prevention

Description: Technical paper issued by the Bureau of Mines over the underground wastes of oil and gas in drilling fields. As stated in the introduction, "the writers have endeavored to establish the manner and importance of underground waste by citing a few cases and to show the means whereby it can be prevented" (p. 5). This paper includes illustrations.
Date: July 1916
Creator: McMurray, William F. & Lewis, James O.
Partner: UNT Libraries Government Documents Department
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WAKE FIELDS OF A PULSE OF CHARGE MOVING IN A HIGHLY CONDUCTING PIPE OF CIRCULAR CROSS SECTION

Description: Expressions are presented for the electric and magnetic fields due to a pulse of charge, which may be oscillating transversely while moving down an infinitely long highly conducting pipe of circular cross section. The expressions are evaluated at large distances from the pulse and the fields are shown to decrease algebraically in the distance behind the pulse. In the absence of transverse oscillations the longitudinal electric field varies as the inverse three-halves power of the distance; in the presence of oscillations the dominant field component is the transverse magnetic field, which decreases as the inverse one-half power. In the long-range limit the amplitude of the fields is proportional to the square root of the wall resistivity. The phase of the field associated with the oscillating pulse is shown to be the phase of the pulse at the time when it passed the point of observation.
Date: February 28, 1966
Creator: Morton, P. L.; Neil, V. K. & Sessler, A. M.
Partner: UNT Libraries Government Documents Department
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News about NHMFL user program.

Description: For the past decade, ultrasound measurements have proven to be of great importance in the investigation of systems close to magnetic instabilities. Many interesting results can be found in thc literature (at reasonably high DC fields) dealing with systems presenting metamagnetic transitions where ultrasound measurenients provided important information regarding the electron-lattice coupling. The group Ketterson, Suslov, and Sarma has been the first in the United States to extend this technique to be used in pulsed magnets. Their report that follows describes experimental details of the technique and presents results regarding the lattice behavior around the 35 T metamagnetic transition of the heavy fermion compound URu,Si,. I am sure that many of you will find the article very interesting. We are working hard to make this technique available to the user community soon.
Date: January 1, 2001
Creator: Lacerda, A. H. (Alex H.)
Partner: UNT Libraries Government Documents Department
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Magnetic field considerations in fusion power plant environs

Description: A summary of magnetic field production mechanisms and effects is given. Discussions are included on the following areas: (1) stray magnetic and electric fields from tokamaks, (2) methods for reducing magnetic fields, (3) economics of magnetic field reductions, (4) forces on magnetizable objects near magnetic confinement fusion reactors, (5) electric field transients in tokamaks, (6) attenuation and decay of electromagnetic fields, and (7) magnetic field transients from tokamak malfunctions.
Date: September 1, 1976
Creator: Liemohn, H. B.; Lessor, D. L. & Duane, B. H.
Partner: UNT Libraries Government Documents Department
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A New Method of Determining Variations in Physical Properties of Oil in a Reservoir, with Application to the Scurry Reef Field, Scurry County, Texas

Description: Report issued by the Bureau of Mines over determining the properties of oil reserves. Details about the methods developed to determine these properties are presented. This report includes tables, maps, photographs, and illustrations.
Date: February 1955
Creator: Cook, Alton B.; Spencer, G. B.; Bobrowski, F. P. & Chin, Tim
Partner: UNT Libraries Government Documents Department
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Secondary-Recovery Potentialities of the Buckrange Reservoir, Stephens Oilfield, Columbia, Nevada, and Ouachita Counties, Arkansas

Description: Report issued by the Bureau of Mines over petroleum-engineering studies conducted on Stephens Oilfield in Arkansas. The production history, and geology of the oilfield are discussed. This report includes tables, maps, and illustrations.
Date: May 1956
Creator: Meadows, Paul & Hawkins, Murphy E.
Partner: UNT Libraries Government Documents Department
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Petroleum-Engineering Study of Flat Rock Oil Field, Osage County, Oklahoma

Description: Report issued by the Bureau of Mines over engineering studies conducted on the Flat Rock oil field. As stated in the introduction, "this report of a petroleum-engineering study of the Flat Rock oil field, Osage County, Okla., describes the geology, reviews the production history, and estimates remaining oil reserves" (p. 1). This report includes tables, maps, and illustrations.
Date: January 1954
Creator: Riggs, Calvin Harold; Wey, J. E. & Maude, J. V.
Partner: UNT Libraries Government Documents Department
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Electric and Magnetic Fields (EMF) RAPID Engineering Program, Project 7: Development of Field Exposure Models

Description: The purpose of this project was to develop a conceptual model for estimating magnetic field (EMF) personal exposure (PE) of individuals or groups and construct a working model using existing data.
Date: May 1999
Creator: Bracken, T. D.; Rankin, R. F. & Wiley, J. A.
Partner: UNT Libraries Government Documents Department
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The stability of the scalar {chi}{sup 2}{phi} interaction

Description: A scalar field theory with a {chi}{dagger}{chi}{phi} interaction is known to be unstable. Yet it has been used frequently without any sign of instability in standard text book examples and research articles. In order to reconcile these seemingly conflicting results, we show that the theory is stable if the Fock space of all intermediate states is limited to a finite number of {chi}{bar {chi}} loops associated with field {chi} that appears quadradically in the interaction, and that instability arises only when intermediate states include these loops to all orders.
Date: February 16, 2001
Creator: Gross, Franz; Savkli, Cetin & Tjon, John
Partner: UNT Libraries Government Documents Department
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