UNT Libraries Government Documents Department - 265,966 Matching Results

Search Results

Results: 1 - 50 next
Generative Artificial Intelligence in Canadian Post-Secondary Education: AI Policies, Possibilities, Realities, and Futures
Report examining "faculty member and administrator perspectives on Generative Artificial Intelligence (AI), which is a technology popularized by ChatGPT that uses machine learning to process data and produce new content, including audio, code, images, text, simulations, and videos" (p. 2).
Artificial Intelligence Action Plan
This report highlights the increasing prevalence and potential of artificial intelligence (AI) technologies in various aspects of life, projecting a significant impact on the global economy by 2030. However, it also addresses concerns regarding the potential misuse of AI, such as infringing on human rights and exacerbating biases. USAID's AI Action Plan emphasizes responsible AI use, advocating for inclusive development and equitable application while prioritizing the strengthening of digital ecosystems and fostering global partnerships to shape a responsible AI agenda.
The Impact of Artificial Intelligence on the Future of Workforces in the European Union and the United States of America
Report on an economic study related to artificial intelligence: "This report is intended to highlight the economics behind AI-driven technological change with a particular focus on the institutional and policy decisions that will shape its future impact on the workforce. [...] Parts I and II of this report introduce AI and document its widespread adoption in the European Union and the United States; part III focuses on AI’s impact on labor; part IV contains case studies on hiring and logistics; part V concludes" (p. 3).
Artificial Intelligence Risk Management Framework (AI RMF 1.0)
This report outlines a framework for risk management in the context of artifiical intelligence including people, processes, infrastructure, and data.
Blueprint for an AI Bill of Rights: Making Automated Systems Work for the American People
White House Office of Science and Technology Policy has identified five principles that should guide the design, use, and deployment of automated systems to protect the American public in the age of artificial intelligence. The Blueprint for an AI Bill of Rights is a guide for a society that protects all people from these threats--and uses technologies in ways that reinforce our highest values. Responding to the experiences of the American public, and informed by insights from researchers, technologists, advocates, journalists, and policymakers, this framework is accompanied by a technical companion--a handbook for anyone seeking to incorporate these protections into policy and practice, including detailed steps toward actualizing these principles in the technological design process. These principles help provide guidance whenever automated systems can meaningfully impact the public's rights, opportunities, or access to critical needs
Artificial Intelligence: An Accountability Framework for Federal Agenices and Other Entities
This report describes an accountability framework for artificial intelligence (AI). The framework is organized around four complementary principles and describes key practices for federal agencies and other entities that are considering and implementing AI systems. Each practice includes a set of questions for entities, auditors, and third-party assessors to consider, along with audit procedures and types of evidence for auditors and third-party assessors to collect.
Artificial Intelligence in Health Care: Benefits and Challenges of Machine Learning Technologies for Medical Diagnostics
Report discussing currently available machine learning (ML) medical diagnostic technologies for five selected diseases, emerging ML medical diagnostic technologies, challenges affecting the development and adoption of ML technologies for medical diagnosis, and policy options to help address challenges in the use of artificial intelligence (AI) technologies in health care (Part One). Part Two presents a framework for evaluating and promoting provider adoption of new AI-assisted diagnostic decision support tools (AI-DDS), centered on four integrated domains: 1) Reason to Use, 2) Means to Use, 3) Methods to Use, and 4) Desire to Use.
Artificial Intelligence: Emerging Opportunities, Challenges, and Implications
Report representing the results of a Comptroller General forum on recent developments in the area of artificial intelligence (AI) - and key implications regarding potential benefits, challenges to realizing these benefits, and resulting policy implications and research priorities.
Artificial Intelligence: Emerging Opportunities, Challenges, and Implications for Policy and Research
Statement discussing the evolution of artificial intelligence (AI) over time, the potential future opportunities and risks of AI, and the future implications of AI on policies and research priorities.
Artificial Intelligence in Health Care: Benefits and Challenges of Machine Learning in Drug Development
Artificial intelligence and machine learning (AI/ML) is a set of technologies that includes automated systems able to perform tasks that normally require human intelligence, such as visual perception, speech recognition, and decision-making. AI/ML has promising applications in health care, including drug development. For example, it may have the potential to help identify new treatments, reduce failure rates in clinical trials, and generally result in a more efficient and effective drug development process. However, applying AI/ML technologies within the health care system also raises ethical, legal, economic, and social questions. GAO was asked to conduct a technology assessment on the use of AI technologies in drug development with an emphasis on foresight and policy implications. This report discusses (1) current and emerging AI technologies available for drug development and their potential benefits; (2) challenges to the development and adoption of these technologies; and (3) policy options to address challenges to the use of machine learning in drug development. -- from Foreword
Science and Tech Spotlight: Deepfakes
Document summarizing deepfake technology and highlighting opportunities, challenges, and policy questions related to the development of this technology.
Final Report of the Select Committee to Investigate the January 6th Attack on the United States Capitol
"This report will provide greater detail about the multistep effort devised and driven by Donald Trump to overturn the 2020 election and block the transfer of power. Building on the information presented in our hearings earlier this year, we will present new findings about Trump's pressure campaign on officials from the local level all the way up to his Vice President, orchestrated and designed solely to throw out the will of the voters and keep him in office past the end of his elected term." [Page X]
The Naming Commission - Final Report to Congress, Part III: Renaming Department of Defense Assets
Report summarizing the recommendations of The Naming Commission's findings as mandated by the National Defense Authorization Act for Fiscal Year 2021, which mandates the removal of names, symbols, displays, monuments and paraphernalia that honor or commemorate the Confederate States of America. "Part III of the Naming Commission 's Final Report .... contains recommendations for the disposition of all Confederacy-affiliated and named Department of Defense assets not already covered" in previous parts of the report. [Executive Summary, Page 2]
The Naming Commission - Final Report to Congress, Part II: U.S. Military Academy and U.S. Naval Academy
Report summarizing the recommendations of The Naming Commission's findings regarding military academies in the United States as mandated by the National Defense Authorization Act for Fiscal Year 2021, which mandates the removal of names, symbols, displays, monuments and paraphernalia that honor or commemorate the Confederate States of America. "Part II of the Naming Commission 's Final Report .... addresses assets on the United States Military Academy (USMA) at West Point and the United States Naval Academy (USNA) at Annapolis." [Executive Summary, Page 2]
The Naming Commission - Final Report to Congress, Part I: United States Army Bases
Report summarizing the recommendations of The Naming Commission's findings regarding army bases as mandated by the National Defense Authorization Act for Fiscal Year 2021, which mandates the removal of names, symbols, displays, monuments and paraphernalia that honor or commemorate the Confederate States of America. "Part 1 of the three-part Naming Commission Final Report .... recommends new names for nine military bases (Fort Hood, Texas; Fort Bragg, North Carolina; Fort Rucker, Alabama; Fort Polk, Louisiana; Fort Benning and Fort Gordon in Georgia; and Fort A. P. Hill, Fort Lee and Fort Pickett in Virginia), the disposition of all Confederacy-affiliated and named Department of Defense assets on those bases, and additional guidance for the nine bases." [Executive Summary, Page 2]
Management Advisory Report: Enhancing the Electronic Tax Law Assistance Program
Final report documenting the results of an audit review to identify enhancements and "best practices" to assist the Internal Revenue Service with replying to taxpayer questions more accurately and efficiently.
Progress Report No. XXIII
"Progress is briefly reported on studies in dielectric spectroscopy, magnetic resonance, high-field-strength research, ferroelectrics and ferromagnetics, semiconductors, single crystals, and ceramics."
The Sodium-Cooled, D2O-Moderated Rector (SDR)
"For presentation at the 1958 Nuclear Congress, Nuclear Science and Engineering Conference, March 17The experimental program was focused on the problems of containing the Na, of providing a barrier material with low neutron absorption cross section and an ability to withstand the action of hot Na, of developing an arrangement of this material which is mechanically adequate, and of demonstrating that an integrated barrier system can be safety operated under reactor temperature and pressure conditions. Possible barrier materials were subjected to hot Na jets. Stainless steel, Zr, and Al withstood the jet very well- The experimental arrangements of other tests are shown."
The Influence of the Molecular Mean Free Path on the Performance of Hydrodynamic Gas Lubricated Bearings
"A modified Reynolds equation is derived for gaslubricated hydrodynamic bearings operating under ''slip flow'' conditions. Closed analytical solutions are given for a Rayleigh-type step-bearing and an inclined plane slider bearing for the case of two-dimensional flow. The influence of the molecular mean free path on the performance of bearings of arbitrary form is obtained by means of a small parameter, perturbation technique"
Summary of All-Union Conference on the Application of Radioactive and Stable Radioisotopes in the National Economy and Science of the Ussr--1957 (Aec-Tr-2925 and Aec-Tr-3093)
"A total of 418 abstracts from this conference and the complete text of five plenary session papers, as well as 55 abstracts from as All-Union Conference on Radiation Chemistry, have been made available in translation in AEC-tr-2925. Almost all of these papers deal with the actual applications of tracers or radiation in the national economy. The papers presented were divided into three major sections: isotope production and high-intensity gamma systems, technical sciences and industrial uses of isotopes, and biology, medicine, and agriculture. A short summary of the papers as to groups is given."
Mechanical and Thermal Problems of Water-Cooled Nuclear Power Reactors
"Some of the principal problems faced in the mechanical and thermal design of the Shipping port Pressurized Water Reactor core are discussed. The interplay of these problems with the requirements of other technologies is discussed, and areas which need more work are outlined."
Final Report of Seamwelding Development Program on Zirconium Can End Closures
"A satisfactory welding schedule for zirconium can assemblies was demonstrated."
A Kinetic Study of CO2 Desorption From Thoria
"Desorption rate curves were obtained for carbon dioxide absorbed on thoria at temperatures of 550C, 450C, 350C, 250C, 150C, and 50C. The gas were found to desorb according to a logarithmic law following initial rapid desorption. The logarithmic law may be shown to be operative if the activation energy for desorption varies linearly with surface converge. A large apparent negative entropy of activation for desorption supports the fact that the adsorbed CO2 is in a mobile state."
Tests of Models of Nuclear Reactor Elements
"Losses have been determined for flow through models of various proposed core sub-assemblies as part of a study of the elements of a nuclear reactor. Six core sections and two axial blanket sub-assemblies have been compared on the basis of drop in piezometric head or pressure drop. The core sub-assemblies are composed of an entrance nozzle, a lower axial blanket section, the core section, an upper axial blanket section, and a short section for the handling lug. The four parts of the sub-assembly other than the core section are designated as the axial blanket sub-assembly. In each core section there are l44 rods within a container which has a square cross section. The primary differences between one core section and another are the means of supporting and spacing the rods. Bars or wires wrapped in spirals around the rods were used as well as a series of grids made up of wires and supported at the four corners. Also, in one core an inner wall was used to provide an annular flow passage which helps to reduce the difference in temperature at the inner and outer walls of the core. The two axial blanket sub-assemblies tested are similar except that the second model is characterized by more gradual transitions in changes of cross-section."
A Monte Carlo Study of Neutron Thermalization
"The slowing down of neutrons from fission to absorption energies in a homogeneous medium has been treated by a Monte Carlo method. thermalization by elastic collisions in both light and heavy water was computed on an IBM 650. One-sixth the mean-square distance travelled by the neutrons was interpreted as the migration area. This quantity was analyzed to give the age, t, both above and below the indium resonance, and the thermal diffusion constant. D, as functions of the moderator temperature, the effective moderator mass, the moderator composition, the scattering the absorption laws, and the energy distribution of the neutron source. The migration area from the fission eneergy source to below the indium resonance energy (1.46 ov) was found ro be 27.4cm^2 for H2O and 120 cm^2 for D2O. By varying the absorption cross section, the migration area from the indiu, resonance energy to absorption of the neutrons could be decompsed into components D/L^2 and Ts. D and Ts were found to be 0.19 cm and 0.77 cm^2 respectively for H2O and 0.87 cm and 20 cm^2 for D2O. D was found to increase with the thermal agitation of the moderator at the rate of 0.15$/C for H2O and 0.14%/C for D2O. Neutron energy distributions found from the scattering frequency agree with those derived by analytical methods."
Technical Progress Report
"Progress is reported on high-speed computer development, circuit research, mathematical methods, data reduction methods, Illiac use and operation, IBM 650 use and operation, instructional use of computers, and general laboratory information."
Differential Voltammetry Using The Hanging Mercury Drop Electrode
"The general techniques of voltammetry with continuously varying potential have been applied to a differential method in which two electrolysis cells are used, each with a hanging mercury drop electrode. Using this method it is possible to determine lO/sup -6/ solutions with increased precision, and it is also possible to analyze solutions as dilute as 10/sup -6/ without removing oxygen from the electrolysis cells. Mixtures can be analyzed easily by adding individual components of the mixture to the reference cell."
Precise Vapor Pressure Measurement At High Temperature
"An apparatus using a silica Bourdon gage is described for the measurement of vapor pressures or dissociation pressures with an accuracy of 0.1 mm and 0.1 deg C up to maximum pressures of atmospheric or beyond and maximum temperatures of 650 to 1250 deg C. The method is applicable to corrosive substances, to substances whose vapor pressure is sensitive to slight changes in composition, and to substances difficult to purify of volatile contaminants which affect the vapor pressure."
Transient Beam Loading In Linear Electron Accelerators
"The subject of beam loading in linear electron accelerators has been discussed. With suitable design it is possible to place the equilibrium electron phase angle well ahead of the crest of the traveling wave in the accelerator. With beam loading the equilibrium position will move toward the crest, but the electron energy will remain constant or nearly so over a considerable range of loading. Some loss in energy will result from moving the equilibrium phase angle off the wave crest but the spread in energies due to beam loading should be reduced.
Zircex Kinetics And Uranium Loss Study
"A study was made of the effects of temperature, impurities in the hydrogen chloride, flow rates, and niobium content on both the reaction rates and insoluble uranium losses in the Zircex Process is presented."
Zircex Uranium Sublimate Loss
"One of the limitations of the Zircex Process is the large percentage loss of U which is carried off with the volatile ZrCl/sub 4/. Since the ratio of U to Zr in the fuel element is quite small (< 1%), a large percentage of U loss can be caused by small amounts of U in the ZrCl/sub 4/ sublimate. The U loss must be kept below 1% if the Zircex Process is to be adapted to industrial scale processing."
Theory Of The Constant Gradient Linear Electron Accelerator
"The effect of beam loading upon the design and performance of the accelerator is examined. Results are given in dimensionless form so that the various equations and grams can be used at any operating frequency. The constant gradient accelerator is somewhat less subject to beam loading than the uniform accelerator structure. For an accelerator of given filling time and 20% more."
Specification for Cleaning Metal Components and Systems for Liquid-Metal Cooled Power Reactors
"The degree of cleanliness is defined, and the methods and materials to be used are outlined for carbon and low alloy steels, 300 and 400 series ferritic and austenitic stainless steels, special Ni-Cr base heat-resistant hard-facing and high-temperature brazing alloys, and some non-ferrous materials."
Exit Beam Trajectories for the Cambridge Electron Accelerator
"A method is outlined for calculating the trajectories, through the magnetic field of the following magnet pair of positive and negative particles of different momenta produced in a target. Representative trajectories were computed by this method and are given numerically."
The Input Admittance of a Ring Circuit
"A ring circuit is a succession or two-port networks and at least one three-port network, each feeding the next at one port and the last feeding the first so that the sequence closes on itself leaving at least one input port. The input admittance is derived in terms ef various matrices describing the circuit for one- and two-input port rings."
Betatron Oscillations and Equilibrium Orbits in Terms of Amplitude and Phase Functions
"Formulas are given to express the general particle trajectory and the equilibrium orbit for a slightly disturbed synchrotron in terms of the amplitude and phase functions for the ideal machine. If these functions are known, orbit computations can be carried out by simple integration procedures. The formalism is expected to be useful especially for considerations such as beam alignment or generation of an external electron beam. Some equations given earlier are repeated for completeness."
Radiation Effects in Circular Electron Accelerators
"The effects of radiation emission on the motion of electrons in high energy synchrotrons are analyzed. The damping rates and quantum excitation of the three principal modes of oscillation are derived for strong focusing and constant gradient accelerators. Methods for correcting the radiation effects for strong focusing accelerators are discussed."
Analysis of Spurious Modes in Magnet Power Supply
"The resonant frequencies of the magnet power supply are investigated. It is found that there are eleven resonant modes in addition to the desired mode of operation with six additional resonant frequencies. From measurements of the choke model, it appears that the frequencies of some of the spurious modes may lie in the same range as the desired mode of operation."
Radiation Damage to Vacuum Chamber Walls
"The problem of radiation derange to the walls of two types of vacuum chamber for the 6 Bev Cambridge Electron Accelerator was studied. Radiation damage may arise from the synchrotron radiation and from electrons which are not accepted at injection. The synchrotron radiation produces a large amount of secondary x radiation which is isotropic, and therefore complicates the arrangement of internal shielding. The 20 Mev electrons from the lines cannot be attenuated by shielding. It is concluded that dosages of the order of 10/sup 7/ rad/day near the inflector are unavoidable. This would exceed the allowable dosage for a tube made by cementing a stainless steel liner to supporting ribs, and also exceed the test dosages (so far as we know) for alumina ceramics."
Dynamic B and n-Behavior Up to 7600 Gauss in Magnet Model Mark Ii Comparison of Results With Long and Small Grad Coils
"Magnetic measurements were performance at excitation levels ranging from 4000 to 7600 gauss, to study the dynamic behavior of the magnetic and gradient lengths of the CEA magnet sectors. The influence of the proposed metal vacuum chamber on field and gradient was experimentally determined. Results of measurements made with a 26 in. long grad coil and with small circular grad coils are compared. The reliability of the 26 in. long grad coil is demonstrated."
Injection Trajectories and Beam Matching for the Cambridge Electron Accelerator
"ABS>Injection trajectories were calculated for different injection conditions for the Cambridge Electron Accelerator, considering also the effect of magnetic fringing fields. The general problem of matching the emittance of the linac to the acceptance of the synchrotron in the transversal phase space is considered, and it is shown that this can be done by a set of two quadrupole lenses. In order to eliminate rudial betatron oscillations due to energy deviations of the injected particles, a pulsed electric quadrupole lens in the synchrotron in combination with two deflectors between linac and synchrotron can be used to place particles of different energies on their specific equilibrium orbits. A layout of the whole injection system following the output of the linac is given."
A Report on the Kinematics of High Energy Electron Scattering
"A convenient summary is given of useful formulas on the kinematics of high energy electron scattering together with a derivation of the relevant formulas for transforming from the center of mass to the laboratory system such parameters as scattering cross sections. The formulas derived hold for any two- body collision: the approximation (m = 0) employed for the electron scattering calculations is rigorously true for the elastic scattering of photons."
Amplitude and Phase Functions for the Revised Parameters of the Cambridge Electron Accelerator
"The phase and amplitude functions describing the betatron oscillations in the synchrotron are calculated using the revised parameters of the Cambridge Electron Accelerator. The results are given numerically and plotted in a graph for one machine period."
Notes on the A-2-Compiler System
"An account is given of an extensive study of the A-2 Compiler System for the Remington Rand Univac digital computer. In particular, the following topics are discussed: application and performance of subroutines, segmenting, and introduction of subroutines to the library."
Evaluation of Foreign Multiplier Phototubes
"Several multiplier phototubes produced by England, Russia, or Switzerland were evaluated for amplification, photocathode sensitivity, photo-electron collection efficiency, cathode uniformity, and dark current. A description of the various tubes by designation numbers is given, along nth a description of techniques and equipment used in testing."
Effect of Quadrupole Lenses
"The effect of correcting quadrupole lenses on the betatron oscillation characteristics of an AG synchrotron was studied, and general formulas are given for the fractional changes of the amplitude and phase functions. Calculations performed for different setups of different numbers of lenses for the CEA synchrotron structure point out that one may correct for sizable errors in the n- value by means of 8 pairs of quadrupole lenses in two consecutive straight sections with the focusing lens between defocusing sectors and vice versa. An increase of BETA /sub max/ of about 5% is obtained for DELTA n/n approximately 0.04. It was found that the necessary corrections can probably be obtained satisfactorily with lenses of 6 in. length. "
Pole-Face Windings
"A summary is presented of a preliminary study of the application of pole- face windings to the Cambridge Electron Accelerator. Estimates are made of the currents required, the forces on the wibdings and the voltages induced by the magnetic flux. The possibility of automatic control of the pole-face currents in explored, and feasible control systems are suggested."
Betatron Oscillation Frequency Shift Due To "N-Errors"
"Expressions are found to relate DELTA gamma to the n-errors.'' It is demonstrated that the integral n-value concept'' is of no use in the present case. A modification of integrated n-value'' is suggested."
Progress letter No. 11 for January 1, 1960 through January 31, 1960
A stainless steel autoclave for superheated water corrosion test was installed and "conditioned". Tests were begun to investigate the feasibility of densifying slip cast stainless steel by means of liquid phase sintering. Attempts to prepare tubular fuel elements by vacuum forming were resumed. Although thick-walled vacuum formed casting have been sintered on the aluminum mandrels without cracking, this has not yet been accomplished with the think sections of interest.
A Survey of Non-Fuel-Bearing Materials for the Marine Gas-Cooled Reactor
Results of an initial examination of non-fuel-bearing materials for the Marine Gas Cooled Reactor are presented. Areas given specific attention include structural and cladding materials and graphite moderator. Other areas not included because of classification include zirconium hydride moderator and control materials. In each report section, available pertinent information is summarized and a plan for future work is given.
Back to Top of Screen