نتایج جستجو برای Head Loads

تعداد نتایج: 138407  
Journal: :Stapp car crash journal 2005
Frank A Pintar, Narayan Yoganandan, Jamie Baisden,

Because of the need to evaluate anthropomorphic test device (ATD) biofidelity under high-head angular accelerations, the purpose of the present investigation was to develop appropriate instrumentation for intact post mortem human subject (PMHS) testing, validate the instrumentation, and obtain information to characterize the response of the head-neck complex under this loading scenario. A serie...

2006
Glenn Paskoff, Ed Sieveka,

Thirty-degree pitch-down helicopter crash pulses were examined at the Patuxent River Horizontal Accelerator facility. The pulses used were representative of standard seat qualification crash corridors for a variety of rotary wing platforms. The primary objectives of this effort were 1) to quantitatively determine the effect of varying helmet weight and center of gravity (CG) during simulated ro...

2016
Shin-ichi Demura, Tomohiro Demura,

This study aimed to clarify the relationships between loads and gait changes and among gait parameters while walking with various loads. Fifteen healthy young male adults (mean age: 22.1±1.6 years) walked with four kinds of loads based on each subject’s body mass (0, 20, 40, and 60% of body mass: BM) on his back. Walking speed, cadence, stance time, swing time, double support time, step length,...

Journal: :Journal of biomechanics 2006
Karen D Gordon, Angela E Kedgley, Louis M Ferreira, Graham J W King, James A Johnson,

The development of a novel instrumented implant for ulnar head replacement is presented in this study. This implant was instrumented with strain gauges to quantify bending moments about the anatomic axes of the distal ulna, and subsequently the distal radioulnar joint (DRUJ) reaction force magnitude. The implant was surgically inserted in seven cadaveric upper extremities, which were subsequent...

1980
F. A. Pintar, M. B. Schlick, J. R. Humm,

Initially, a series of rigid-arm pendulum tests were conducted to evaluate various methods of obtaining rotational head acceleration. Then a series of Hybrid-III dummy tests using only the head and neck system was conducted to validate the test methodology under high-rate chin loading. Finally, a preliminary series of post mortem human subject (PMHS) tests were conducted to derive the response ...

2012
Daniel Dressler, Peter A. Cripton,

INTRODUCTION Spinal cord injuries (SCIs) in football are rare but catastrophic events. The SCI incidence rate in the United States for high school, college, and professional football has been estimated as 0.52, 1.55, and 14 per 100,000 participants, respectively [1]. These injuries are very significant given the enormous economic and societal costs and the vastly diminished quality of life of t...

1999

Continuously Heated Greenhouses: A production or retail greenhouse with a constantly maintained temperature of 50 degrees F or more during winter months. Such greenhouse must also have a maintenance attendant on duty at all times or an adequate temperature alarm system to provide warning in the event of a heating system failure. In addition, the greenhouse roof material must have a thermal resi...

2009
VIJAY K. PURI, SHAMSHER PRAKASH,

Design of foundations in earthquake prone areas needs special considerations. Shallow foundations may experience a reduction in bearing capacity and increase in settlement and tilt due to seismic loading. The reduction in bearing capacity depends on the nature and type of soil and ground acceleration parameters. In the case of piles, the soil-pile behavior under earthquake loading is generally ...

2017

• The fifth objective of the AASHO Road Test was as follows: "To develop instrumentation, test procedures, data, graphs and formulas which will reflect the capabilities of the various test sections; and which will be helpful in future highway design in the evaluation of the loadcarrying capabilities of existing highways and determining the most promising areas of further highway research." It w...

2005
Sanjay S. Parikh, Leslie Tung,

or intact muscle. End-systolic pressure-volume relations of frog hearts have been found to be load dependent, whereas those of the mammal are relatively load independent. On the other hand, myocardial relaxation as studied at the muscle level is load independent in the frog but markedly load dependent in the mammal. Interpretation of these studies is complicated because of the unknown contribut...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید