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Showing 36381 - 36400 of 36747 results
  • The angle of shoulder slope in normal males as a factor in shoulderharness design
    The angle of shoulder slope in normal males as a factor in shoulder-harness design.
    Snow, Clyde C. ;
    Hasbrook, A. Howard
    1965-03-01 | PDF
    In order to establish criteria for more comfortable shoulder-harness design, this study was conducted to determine the angle of slope of the top of the shoulders where poorly fitting shoulder harness may produce discomfort and, occasionally, functional impairment through compression of the underlying soft tissues. The mean shoulder-slope angle (mea ...
  • Pilot fatigue intercontinental jet flight 1 Oklahoma City Tokyo
    Pilot fatigue : intercontinental jet flight. 1. Oklahoma City <--> Tokyo.
    Hauty, George T. ;
    Adams, Thomas
    1965-03-01 | PDF
    Following 3 consecutive days of biomedical assessment in Oklahoma City, six healthy subjects were transported to Tokyo, where assessments were made on alternate days throughout a period of 10 days, and were then transported back to Oklahoma City, where assessments were made for 3 consecutive days. Based upon the single parameter of rectal temperatu ...
  • Biomedical survey of ATC facilities 2 Experience and age
    Biomedical survey of ATC facilities, 2. Experience and age.
    Hauty, George T. ;
    Trites, David K.
    1965-03-01 | PDF
    From six enroute and six terminal air traffic control facilities selected on the basis of differences between shift rotation schedules and high IFR traffic volume, 300 journeymen and assistant controllers were selected as volunteer subjects to complete a biomedical inventory daily for a period of 90 consecutive days. The inventory elicited informat ...
  • Operating System Manual for Revised Texas Traffic Assignment System
    Operating System Manual for Revised Texas Traffic Assignment System
    Blumentritt, Charles W.
    1965-03-01 | PDF
    This manual is designed to aid the user in the operation of the revised Texas Traffic Assignment System. Data formats are explained in detail, including program input as well as program control cards. The user should become familiar with the contents of this manual, particularly in regard to error stops and the causes thereof. Minor modifications c ...
  • Impact Behavior of Sign Supports A Progress Report
    Impact Behavior of Sign Supports: A Progress Report
    Samson Jr, Charles H. ;
    Rowan, Neilon J.
    1965-03-01 | PDF
    The objectives of the initial phase of the research being reported were to design and test sign supports (1) with substantial reduction in the total mass involved, (2) which themselves will yield under the impact of collision, and (3) which will readily disconnect from their foundations when struck by a vehicle. In this preliminary phase of the res ...
  • A Highway Construction Bid Price Index
    A Highway Construction Bid Price Index
    Teinert, W C ;
    Long, Emory G
    1965-03-01 | PDF
    The purchasing power of a dollar made available to the State for highway construction varies from time to time for any number of reasons. In order that those responsible for long range construction planning may have at their disposal a means of measuring this varying purchasing power at any time and projecting it to any future point in time, a cost ...
  • Cranial impedance plethysmographyrheoncephalography as a method of detection of cerebrovascular disease
    Cranial impedance plethysmography-rheoncephalography as a method of detection of cerebrovascular disease.
    Seipel, J.H. ;
    Ziemnowicz, S.A.R.
    1965-01-01 | PDF
    Rheoencephalography, the monitoring of cerebral blood flow by impedance methods, has been used successfully in clinical medicine in Europe and Russia but not in the United States. Three cases are presented to demonstrate the potential value of this method in the diagnosis of cerebrovascular pathology. These cases also demonstrate that the method ap ...
  • Effects of several mental tasks on auditory fatigue
    Effects of several mental tasks on auditory fatigue.
    Collins, William E. ;
    Capps, Mary Jane
    1965-01-01 | PDF
    Eight males were exposed for three minutes to a 4000 cps fatigue tone at 40 dB SL. Each S was tested under four task-conditions: mental arithmetic (MA), written ling division (LD), threshold determination of a 500 cps tone (TD), and reverie (REV). Temporary threshold shifts (TTS) were computed by comparing pre- and post-fatigue thresholds, MA produ ...
  • Right of Way Acquisition Effects on the Remaining Rural Farms and Ranches in Madison County An Interim Progress Report
    Right of Way Acquisition Effects on the Remaining Rural Farms and Ranches in Madison County: An Interim Progress Report
    Meuth, Hugo G.
    1965-01-01 | PDF
    A study was begun in 1963 on the effects of right of way acquisition on the remaining portions of rural farms and ranches in Texas. This report presents some preliminary findings developed from personal interviews with operators of land affected by right of way acquisition for Interstate 45 in Madison County. Information gathered from the operators ...
  • Road and Laboratory Tests on HotMix Asphaltic Concrete
    Road and Laboratory Tests on Hot-Mix Asphaltic Concrete
    Jimenez, R. A. ;
    Gallaway, Bob M.
    1965-01-01 | PDF
    The work reported in this presentation is related to a six-year study of materials, tests, and evaluation of asphaltic concrete in Texas. The investigation of asphaltic mixtures was divided into two main phases. The first was concerned with the evaluation of the materials used in twelve pavements built in different parts of the State and the sampli ...
  • Tensile Testing of Road Materials Bibliography
    Tensile Testing of Road Materials: Bibliography
    Texas Transportation Institute. Texas A&M University
    1965-01-01 | PDF
    This bibliography of journal articles, proceedings, and research studies focuses on tensile testing of road Materials. Many of the entries are annotated or contain excerpts.
  • Auditory fatigue influence of mental factors
    Auditory fatigue : influence of mental factors.
    Capps, Mary Jane ;
    Collins, William E.
    1965-01-01 | PDF
    Conflicting reports regarding the influence of mental tasks on auditory fatigue have recently appeared in the literature. In the present study, 10 male subjects were exposed to 4000 cps fatigue toe at 40 dB SL for 3 min under conditions of mental arithmetic and reverie. Temporary threshold shifts, as indicated by comparing pre- and post-fatigue thr ...
  • Drilled Shafts Bibliography
    Drilled Shafts: Bibliography
    Texas Transportation Institute. Texas A&M University
    1965-01-01 | PDF
    This bibliography of journal articles, proceedings, and research studies published between 1956 and 1964 focuses on drilled shaft. Many of the entries are annotated or contain excerpts.
  • A Laboratory Study of the Effects of Oven Curing Loose and Compacted Asphaltic Concrete Mixtures
    A Laboratory Study of the Effects of Oven Curing Loose and Compacted Asphaltic Concrete Mixtures
    Jimenez, R. A. ;
    Gallaway, Bob M.
    1965-01-01 | PDF
    Laboratory evaluations of asphaltic concrete mixtures are often used to measure the physical characteristics of paving materials. Laboratory materials evaluations and mix designs are considered a necessary part of the over-all job of building quality pavements. Since the results of such tests and evaluations may be affected to a measurable degree b ...
  • Abridgements of Reports Resulting from Studies of Project Road Test on HotMix Asphaltic Concrete
    Abridgements of Reports Resulting from Studies of Project, “Road Test on Hot-Mix Asphaltic Concrete”
    Jimenez, R. A. ;
    Gallaway, Bob M.
    1965-01-01 | PDF
    This report presents in condensed version the results of six studies that evolved from an investigation performed to study factors influencing the design and performance of asphalt paving mixtures in Texas. The complete reports have been submitted to the Texas Highway Department and some of these appear in the Proceedings of the Highway Research Bo ...
  • A Repetitive Triaxial Loading Apparatus for Large Diameter Specimens of Granular Materials
    A Repetitive Triaxial Loading Apparatus for Large Diameter Specimens of Granular Materials
    Dunlap, Wayne A.
    1965-01-01 | PDF
    Design procedures for flexible pavements are severely hampered by the lack of knowledge of the physical behavior of. roadway materials under repeated loadings. Recent repetitive triaxial research on clayey soils has done much to expand knowledge of their behavior but the physical behavior of granular materials under repeated loading has been largel ...
  • CRITICAL MECHANICAL PROPERTIES OF STRUCTURAL LIGHTWEIGHT CONCRETE AND THE EFFECTS OF THESE PROPERTIES ON THE DESIGN OF THE PAVEMENT STRUCTURE
    CRITICAL MECHANICAL PROPERTIES OF STRUCTURAL LIGHT-WEIGHT CONCRETE AND THE EFFECTS OF THESE PROPERTIES ON THE DESIGN OF THE PAVEMENT STRUCTURE.
    Ledbetter, William B. ;
    Perry, Ervin S.
    1965-01-01 | PDF
    In this study, critical mechanical properties of structural lightweight concrete were determined and utilized in the evaluation of a design of concrete pavements. Also presented are the critical mechanical properties resulting from unrestrained and restrained volume changes. Particular attention is given to compressive, direct tensile, and indirect ...
  • Freeway Level of Service as Influenced by Volume and Capacity Characteristics
    Freeway Level of Service as Influenced by Volume and Capacity Characteristics
    Drew, Donald R. ;
    Keese, Charles J.
    1965-01-01 | PDF
    This report deals with two main topics which affect traffic operation, and thus the level of service, on freeways. They are volume characteristics and capacity characteristics. Two main topics under volume characteristics are considered and developed. The first is an analysis of such peak flow characteristics as peak rates of flow, correlation with ...
  • A Laboratory Study of the Operator Variable on Molding Procedure and Mix Design Variations in HotMix Asphaltic Concrete
    A Laboratory Study of the Operator Variable on Molding Procedure and Mix Design Variations in Hot-Mix Asphaltic Concrete
    Gallaway, Bob M. ;
    Jimenez, R. A.
    1965-01-01 | PDF
    This study was concerned primarily with laboratory evaluations of job mixed formulations of hot-mix asphaltic concrete taken from regular contract work in District 17 of the Texas Highway Department and molded by different operators using planned variations of the THD Standard molding procedure.
  • Soil Stabilization With Cement and Lime
    Soil Stabilization With Cement and Lime
    Handy, Richard L.
    1964-12-31 | PDF
    Soil-cement and soil-lime research during the years 1961-1963 was reported in a series of 22 Progress Reports and Special Reports which have been submitted and are listed in the appendix to this report. The purpose of this final report is to summarize the findings presented in these reports. The contents of this report are as follows: Soil-Cement R ...
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