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Electrolysis of Aluminum Solutions in a Magnetic Field

Electrolysis of Aluminum Solutions in a Magnetic Field

Date: May 1950
Creator: Wood, Charles E.
Description: None
Contributing Partner: UNT Libraries
Electromagnetic aftereffects of near-death experiences.

Electromagnetic aftereffects of near-death experiences.

Date: August 2008
Creator: Nouri, Farnoosh Massoudian
Description: The purpose of this quantitative study was first to investigate the comparative incidence of electromagnetic aftereffects (EMEs) during the past year among near-death experiencers (NDErs), people who experienced a close brush with death without an NDE (CBrs), and people who reported never having experienced a close brush with death (LCErs). The second purpose was to investigate a possible change in EME incidence among the three groups before and after a critical life event. The third purpose was to investigate the relationship between the reported overall depth and specific components of the subjective experiences of people who have had a close brush with death -- NDErs and CBrs -- and their reported incidence of EMEs. I used the Near-Death Experience Scale (Greyson, 1983), and developed the Close Brush with Death Question form, Life Changing Event Question form, and Electromagnetic Effects Questionnaire for this study. The final sample included 36 NDErs, 20 CBrs, and 46 LCErs. The results of this study firmly supported more reported problems with EM devices experienced by NDErs compared to CBrs or LCErs. Especially with respect to EM devices such as lights and cell phones, as well as the emotional state of individuals affecting EM devices, this study ...
Contributing Partner: UNT Libraries
Electromagnetic Aftereffects of Near-Death Experiences

Electromagnetic Aftereffects of Near-Death Experiences

Date: Winter 2008
Creator: Mouri, Farnoosh M. & Holden, Janice Miner
Description: Study investigating electromagnetic effects among near-death experiencers (NDErs), people who reported a close brush with death without an NDE, and people who reported never having been close to death but who used their most life-changing event as a past reference point.
Contributing Partner: UNT Libraries
Electromagnetic and Other Environmental Effects Following Near-Death Experiences: A Primer

Electromagnetic and Other Environmental Effects Following Near-Death Experiences: A Primer

Date: Summer 2015
Creator: Blalock, Sarah; Holden, Janice Miner & Atwater, P. M. H.
Description: Article describing the results of informal and formal research regarding electromagnetic (EM) effects of near-death experiences (NDEs); it reviews cases in which a person acts on his environment and those in which a person reacts to the environment. The paper also proposes more precise terminology regarding EM phenomena based on the research and literature review.
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Electromagnetic Phenomena Reported by Near-Death Experiencers

Electromagnetic Phenomena Reported by Near-Death Experiencers

Date: Summer 2015
Creator: Greyson, Bruce; Liester, Mitchell B.; Kinsey, Lee; Alsum, Steve & Fox, Glen
Description: Abstract: Electromagnetic (EM) aftereffects have been reported following near-death experiences (NDEs). These effects include both (a) EM actions, apparent actions by the individual on the surrounding EM environment, and (b) EM reactions, apparent reactions of the individual to the EM environment. This study investigated EM aftereffects among 216 NDErs, 54 persons who had been close to death without NDEs, and 150 persons who had never been close to death. NDErs reported both greater EM actions and greater EM reactions than did either comparison group. Among NDErs, those with higher scores on the NDE Scale reported more EM aftereffects. Thse findings corroborate and extend prior studies and suggest the need for controlled experiments to measure the kinds and strengths of EM fields generated or channeled by NDErs, the kinds of EM fields and devices that are affected by NDErs, and the kinds and strengths of EM fields to which NDErs react.
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Electromagnetic Shielding Properties of Iron Oxide Impregnated Kenaf Bast Fiberboard

Electromagnetic Shielding Properties of Iron Oxide Impregnated Kenaf Bast Fiberboard

Date: December 2014
Creator: Ding, Zhiguang
Description: The electromagnetic shielding effectiveness of kenaf bast fiber based composites with different iron oxide impregnation levels was investigated. The kenaf fibers were retted to remove the lignin and extractives from the pores in fibers, and then magnetized. Using the unsaturated polyester and the magnetized fibers, kenaf fiber based composites were manufactured by compression molding process. The transmission energies of the composites were characterized when the composite samples were exposed under the irradiation of electromagnetic (EM) wave with a changing frequency from 9 GHz to 11 GHz. Using the scanning electron microscope (SEM), the iron oxide nanoparticles were observed on the surfaces and inside the micropore structures of single fibers. The SEM images revealed that the composite’s EM shielding effectiveness was increased due to the adhesion of the iron oxide crystals to the kenaf fiber surfaces. As the Fe content increased from 0% to 6.8%, 15.9% and 18.0%, the total surface free energy of kenaf fibers with magnetizing treat increased from 44.77 mJ/m2 to 46.07 mJ/m2, 48.78 mJ/m2 and 53.02 mJ/m2, respectively, while the modulus of elasticity (MOE) reduced from 2,875 MPa to 2,729 MPa, 2,487 MPa and 2,007 MPa, respectively. Meanwhile, the shielding effectiveness was increased from 30-50% to 60-70%, ...
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Electromagnetically Modulated Sonic Structures

Electromagnetically Modulated Sonic Structures

Access: Use of this item is restricted to the UNT Community.
Date: May 2014
Creator: Walker, Ezekiel Lee
Description: Phononic crystals are structures composed of periodically arranged scatterers in a background medium that affect the transmission of elastic waves. They have garnered much interest in recent years for their macro-scale properties that can be modulated by the micro-scale components. The elastic properties of the composite materials, the contrast in the elastic properties of the composite materials, and the material arrangement all directly affect how an elastic wave will behave as it propagates through the sonic structure. The behavior of an elastic wave in a periodic structure is revealed in its transmission bandstructure, and modification of any the elastic parameters will result in tuning of the band structure. In this dissertation, a phononic crystal with properties that can be modulated using electromagnetic radiation, and more specifically, radio-frequency (RF) light will be presented.
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Electron Density and Collision Frequency Studies Using a Resonant Microwave Cavity as a Probe

Electron Density and Collision Frequency Studies Using a Resonant Microwave Cavity as a Probe

Date: May 1973
Creator: Freeman, Ronald Harold
Description: Electron densities and collision frequencies were obtained on a number of gases in a dc discharge at low pressures (0.70-2mm of Hg). These measurements were performed by microwave probing of a filament of the dc discharge placed coaxially in a resonant cavity operating in a TM₀₁₀ mode. The equipment and techniques for making the microwave measurements employing the resonant cavity are described. One of the main features of this investigation is the technique of differentiating the resonance signal of the loaded cavity in order to make accurate measurements of the resonant frequency and half-power point frequencies.
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The Electron Emission Characteristics of Aluminum, Molybdenum and Carbon Nanotubes Studied by Field Emission and Photoemission.

The Electron Emission Characteristics of Aluminum, Molybdenum and Carbon Nanotubes Studied by Field Emission and Photoemission.

Date: December 2002
Creator: Sosa, Edward Delarosa
Description: The electron emission characteristics of aluminum, molybdenum and carbon nanotubes were studied. The experiments were setup to study the emission behavior as a function of temperature and exposure to oxygen. Changes in the surface work function as a result of thermal annealing were monitored with low energy ultra-violet photoelectron spectroscopy for flat samples while field emission energy distributions were used on tip samples. The change in the field emission from fabricated single tips exposed to oxygen while in operation was measured using simultaneous Fowler-Nordheim plots and electron energy distributions. From the results a mechanism for the degradation in the emission was concluded. Thermal experiments on molybdenum and aluminum showed that these two materials can be reduced at elevated temperatures, while carbon nanotubes on the other hand show effects of oxidation. To purely reduce molybdenum a temperature in excess of 750 ºC is required. This temperature exceeds that allowed by current display device technology. Aluminum on the other hand shows reduction at a much lower temperature of at least 125 ºC; however, its extreme reactivity towards oxygen containing species produces re-oxidation. It is believed that this reduction is due to the outward diffusion of aluminum atoms through the oxide. Carbon nanotubes ...
Contributing Partner: UNT Libraries
Electron-Ion Time-of-Flight Coincidence Measurements of K-K Electron Capture, Cross Sections for Nitrogen, Methane, Ethylene, Ethane, Carbon Dioxide and Argon (L-K) Targets

Electron-Ion Time-of-Flight Coincidence Measurements of K-K Electron Capture, Cross Sections for Nitrogen, Methane, Ethylene, Ethane, Carbon Dioxide and Argon (L-K) Targets

Date: May 1986
Creator: Toten, Arvel D.
Description: Protons with energies ranging from 0.4 to 2.0 MeV were used to measure K-shell vacancy production cross sections (oVK) for N_2, CH_4, C_2H_4, C_2H_6, and CO_2 gas targets under single collision conditions. An electron-ion time-of-flight coincidence technique was used to determind the ration of the K-K electron capture cross section, OECK, to the K-vacancy production cross section, oVK. These ratios were then combined with the measured values of oVK to extract the K-K electron capture cross sections. Measurements were also made for protons of the same energy range but with regard to L-shell vacancy production and L-K electron capture for Ar targets. In addition, K-K electron capture cross sections were measured for 1.0 to 2.0 Mev 42He^_ ions on CH_4.
Contributing Partner: UNT Libraries
Electron Microscopy of Vesicles Present in Bacterial Lysates of Escherichia Coli

Electron Microscopy of Vesicles Present in Bacterial Lysates of Escherichia Coli

Date: August 1966
Creator: Shaw, James Elwood
Description: It is the purpose of this thesis to report further studies on the vesicles appearing in phage lysates of Escherichia coli, phage attachment to these vesicles, and the presence of similar vesicles in lysozyme and penicillin lysed cultures.
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Electron Spin Resonance Absorption in Benzophenone Phenylhydrazone Negative Ion

Electron Spin Resonance Absorption in Benzophenone Phenylhydrazone Negative Ion

Date: August 1969
Creator: Oral, Burhanettin
Description: This thesis reports an electron spin resonance absorption study of the hyperfine interaction between nuclei and a single "nearly-free" electron in dilute solutions of the benzophenone phenylhydrazone free radical in tetrahydrofuran.
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Electron Transport in Bismuth at Liquid Helium Tempratures

Electron Transport in Bismuth at Liquid Helium Tempratures

Date: May 1964
Creator: Newell, James M.
Description: To obtain information on the band structure of bismuth, galvanomagnetic potentials were measured in a single crystal at liquid-helium and liquid-nitrogen temperatures. These measurements were analyzed for information on the different carriers, particularly for the existence of a high-mobility band of holes.
Contributing Partner: UNT Libraries
Electronic Analog Computer Study of Effects of Motor Velocity and Driving Voltage Limits upon Servomechanism Performance

Electronic Analog Computer Study of Effects of Motor Velocity and Driving Voltage Limits upon Servomechanism Performance

Date: 1956
Creator: Haynes, Joe Preston
Description: The object of this thesis is (1) to demonstrate the value of an electronic analog computer for the solution of non-linear ordinary differential equations particularly when a large family of solutions is required; and (2) to obtain as a by-product results of practical applicability to servomechanism selection and analysis.
Contributing Partner: UNT Libraries
Electronic Archives and Partnerships - Preserving Government Information for Tomorrow

Electronic Archives and Partnerships - Preserving Government Information for Tomorrow

Date: July 2003
Creator: Lyons, Susan; Barnum, George & Hartman, Cathy Nelson
Description: This presentation discusses electronic archives, partnerships, and preserving government information. In this presentation, the authors discuss digital libraries and the Federal Depository Library Program (FDLP). They present the background of the FDLP, developing the Memorandum of Understanding, the CyberCemetery, and gives a current status of the FDLP.
Contributing Partner: UNT Libraries
Electronic Effects in Dihaloketenes

Electronic Effects in Dihaloketenes

Date: August 1966
Creator: Vaughn, Walter L.
Description: The objective of this investigation was to determine the electronic effects of the halogen atoms in dihaloketenes such as dichloroketene and dibromoketene.
Contributing Partner: UNT Libraries
The Electronic Ranch: the Information Environment of Cattle Breeders

The Electronic Ranch: the Information Environment of Cattle Breeders

Date: May 1999
Creator: Hicks, Georgia Jane
Description: The present study was a longitudinal analysis of the information needs of Red Angus cattle breeders and their use of networked information services. It was based on two surveys. The first, conducted in 1995--96, polled all 1067 ranches of the Red Angus Association of America. Responses from 192 Red Angus breeders were used to determine the value of different information types and to evaluate perceptions of the greatest barriers to the adoption of network information services. The second survey, mailed to 41 Red Angus breeders in 1998, focused on early adopters and likely users of network services. Responses from 15 breeders were used to evaluate perceptions of the greatest barriers to the effective use of Web-based information services.
Contributing Partner: UNT Libraries
Electronic Sound Analysis with Hardware System and Remote Internet Display

Electronic Sound Analysis with Hardware System and Remote Internet Display

Access: Use of this item is restricted to the UNT Community.
Date: August 2010
Creator: McCord, Cameron Forrest
Description: Currently, standards from government agencies such as the National Institute for Occupation Safety and Health exist to aid in safeguarding individuals’ capacity for hearing, but only in factory settings in which large machines often produce loud levels of sound. Neglecting the fact that these preventative measures are only in place in the most limited of settings, no system currently exists to observe and report sound exposure levels in a manner timely or easily recognizable enough to adequately serve its purpose of hearing conservation. Musicians may also incur significant levels of risk for hearing loss in their day-to-day rehearsals and concerts, from high school marching bands to university wind bands. As a result, music school accrediting organizations such as the National Association of Schools of Music and even the European Union have begun taking steps meant to determine the risks associated with music. To meet these goals and improve upon current technologies, a system has been developed that electronically records sound levels utilizing modern hardware, increases the speed of reporting by transmitting data over computer networks and the Internet, and displays measures calculated from these data in a web browser for a highly viewable, user-friendly interface.
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The Electronic Spectrum of (-)-S-(pS)-2,5,3',6'-Tetrahydro-2.2-Paracyclophane-2-Carboxylic Acid

The Electronic Spectrum of (-)-S-(pS)-2,5,3',6'-Tetrahydro-2.2-Paracyclophane-2-Carboxylic Acid

Date: May 1980
Creator: Hall, Lindsey
Description: A new, efficient route was used in the synthesis of [2.2]-paracyclophane-2-carboxylic acid. The acid as then resolved and the Birch reduction performed yielding one enantiomer of tetrahydro-[2.2]-paracyclophane-2-carboxylic acid. The ultraviolet spectrum of tetrahydro-[2.2]-paracyclophane- 2-carboxylic acid in isopenthane shows one absorption at 206 nm (Emax = 5,271). There are three bands observed in the circular dichroism spectrum in isopentane at 236 nm ([] = 1.8 X 104), 201 nm ([0] = -16 X 104) and a positive band indicated below 180 nm but not observed. The bands were assigned and possible reasons for the occurrence of a mr'r* transition at unexpectedly long wavelengths are discussed.
Contributing Partner: UNT Libraries
Electronics as an Economic Resource:  A Study of the Impact of Technology on Resource Theory

Electronics as an Economic Resource: A Study of the Impact of Technology on Resource Theory

Date: 1951
Creator: Simpson, Jerry Peyton
Description: This thesis discusses electronics as an economic resource and the impact of technology on resource theory.
Contributing Partner: UNT Libraries
Electrostatic Effects in III-V Semiconductor Based Metal-optical Nanostructures

Electrostatic Effects in III-V Semiconductor Based Metal-optical Nanostructures

Access: Use of this item is restricted to the UNT Community.
Date: May 2012
Creator: Gryczynski, Karol Grzegorz
Description: The modification of the band edge or emission energy of semiconductor quantum well light emitters due to image charge induced phenomenon is an emerging field of study. This effect observed in quantum well light emitters is critical for all metal-optics based light emitters including plasmonics, or nanometallic electrode based light emitters. This dissertation presents, for the first time, a systematic study of the image charge effect on semiconductor–metal systems. the necessity of introducing the image charge interactions is demonstrated by experiments and mathematical methods for semiconductor-metal image charge interactions are introduced and developed.
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Electrostatic Mechanism of Emission Enhancement in Hybrid Metal-semiconductor Light-emitting Heterostructures

Electrostatic Mechanism of Emission Enhancement in Hybrid Metal-semiconductor Light-emitting Heterostructures

Date: May 2012
Creator: Llopis, Antonio
Description: III-V nitrides have been put to use in a variety of applications including laser diodes for modern DVD devices and for solid-state white lighting. Plasmonics has come to the foreground over the past decade as a means for increasing the internal quantum efficiency (IQE) of devices through resonant interaction with surface plasmons which exist at metal/dielectric interfaces. Increases in emission intensity of an order of magnitude have been previously reported using silver thin-films on InGaN/GaN MQWs. the dependence on resonant interaction between the plasmons and the light emitter limits the applications of plasmonics for light emission. This dissertation presents a new non-resonant mechanism based on electrostatic interaction of carriers with induced image charges in a nearby metallic nanoparticle. Enhancement similar in strength to that of plasmonics is observed, without the restrictions imposed upon resonant interactions. in this work we demonstrate several key features of this new interaction, including intensity-dependent saturation, increase in the radiative recombination lifetime, and strongly inhomogeneous light emission. We also present a model for the interaction based on the aforementioned image charge interactions. Also discussed are results of work done in the course of this research resulting in the development of a novel technique for strain measurement ...
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Elemental Analysis of Brainstem in Victims of Sudden Infant Death Syndrome

Elemental Analysis of Brainstem in Victims of Sudden Infant Death Syndrome

Date: December 1988
Creator: Oquendo, Javier
Description: None
Contributing Partner: UNT Libraries
Elementary Math Achievement in Texas: What is Working?

Elementary Math Achievement in Texas: What is Working?

Date: May 2011
Creator: Moore, Linda H.
Description: Elementary math teachers (76) from selected Texas schools that included Grade 5 responded to an online self-report survey with respect to school-level factors that may be associated with student math achievement. Questions on the survey focused on school-level factors related to math, campus leadership, integration of technology in the math classroom, teacher expectations, utilization of student data in decision-making and professional development. The schools included in the study were rated as Acceptable or Exemplary schools by the Texas Education Agency for three-consecutive years (2007-2010). Logistic regression techniques were used to analyze the data and 11 questions out of 45 were analyzed to determine the odds ratio. Factors that were correlated with being an Exemplary campus were teacher certification routes, not benchmarking student progress, implementation of response to intervention (RTI), classroom management focus (equally divided between student and teacher centered) within the classroom, and technology integration. The results indicated that at the .05 level of probability, the only factor that met that level of significance was full implementation of RTI.
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