نتایج جستجو برای: peak acceleration

تعداد نتایج: 185713  

2009
Hong Liu

Comparing the device of ITER with ICF, I strongly notice that I have an advice to ITER Driven Plasma Physics. I used to study laser-plasma interaction which relates to a strong spontaneous magnetic field (in axial or in azimuthal direction) and found a new particle acceleration named laser-magnetic resonance acceleration (LMRA). The electron acceleration depends not only on the electromagnetic ...

2017
Fabrizio Donati Saul Myerson Malenka M. Bissell Nicolas P. Smith Stefan Neubauer Mark J. Monaghan David A. Nordsletten Pablo Lamata

BACKGROUND Transvalvular peak pressure drops are routinely assessed noninvasively by echocardiography using the Bernoulli principle. However, the Bernoulli principle relies on several approximations that may not be appropriate, including that the majority of the pressure drop is because of the spatial acceleration of the blood flow, and the ejection jet is a single streamline (single peak veloc...

2016
Yan Sun Xiaoming Kong Chen Wang Yongxia Xu Keyong Wang Defa Zhu

Objective: To explore the potential difference of eye saccade dynamics between first-episode treatmentnaïve hyperthyreosis patients without pre-existing eye damage and healthy controls by using basic visually guided saccade (VGS). Methods: 15 hyperthyroidism outpatients and 15 healthy controls participated in VGS analysis. Multiple indicators, including amplitude, duration, latency, main sequen...

Journal: :Journal of magnetic resonance imaging : JMRI 2008
Bernd Jung Matthias Honal Jürgen Hennig Michael Markl

PURPOSE To investigate the performance of the recently introduced spatiotemporal parallel imaging technique called parallel MRI with extended and averaged generalized autocalibrating partially parallel acquisitions (GRAPPA) kernels (PEAK-GRAPPA) for myocardial perfusion measurements. MATERIALS AND METHODS A study with 11 patients with myocardial infarction was performed to compare nonaccelera...

2017
Young Seo Cho Kyoung Won Kim Hye Young Jang Bo Hyun Kim Jeongjin Lee Gi Won Song Sung Gyu Lee Dagvasumberel Munkhbaatar

BACKGROUND/AIMS Clinical validation is required to determine whether Doppler measurements are comparable before and after administering ultrasound contrast agent (USCA). The purpose of this study is to explore whether the use of USCA affects spectral Doppler analysis in recipients of liver transplantation (LT). METHODS For this study, 36 patients were examined using Doppler ultrasonography (U...

1996
Hui Li Masaaki Kusunose Edison P. Liang

We consider stochastic particle acceleration in plasmas around stellar mass black holes to explain the emissions above 1 MeV from Galactic black hole candidates. We show that for certain parameter regimes, electrons can overcome Coulomb losses and be accelerated beyond the thermal distribution to form a new population, whose distribution is broad and usually not a power law; the peak energy of ...

2012
Shubha P Bhat T. C. Manjunath C. Ardil

In this paper, the effects of the restoring force device on the response of a space frame structure resting on sliding type of bearing with a restoring force device is studied. The NS component of the El Centro earthquake and harmonic ground acceleration is considered for earthquake excitation. The structure is modeled by considering six-degrees of freedom (three translations and three rotation...

Journal: :The Journal of experimental biology 2005
P E di Prampero S Fusi L Sepulcri J B Morin A Belli G Antonutto

The speed of the initial 30 m of an all-out run from a stationary start on a flat track was determined for 12 medium level male sprinters by means of a radar device. The peak speed of 9.46+/-0.19 m s(-1) (mean +/- s.d.) was attained after about 5 s, the highest forward acceleration (a(f)), attained immediately after the start, amounting to 6.42+/-0.61 m s(-2). During acceleration, the runner's ...

Journal: :Archives of disease in childhood 1984
J M Buckler

Changes in skeletal age and height of 34 Leeds schoolboys were studied in a four year longitudinal survey covering puberty. Tanner and Whitehouse method TW2 was used. In each boy, skeletal age advanced rapidly during puberty, reaching a peak at an age related to that of peak height velocity. The importance of recognising that this acceleration of bone age is normal is stressed, in order to avoi...

Journal: :Investigative ophthalmology & visual science 1981
A T Bahill A Brockenbrough B T Troost

The duration, peak velocity, and acceleration of the saccadic eye movements of 13 normal subjects are plotted as functions of saccadic magnitude. The apparent peak velocity of a saccadic eye movement is sensitive to the algorithms used to calculate the velocity. The velocity channel filter should have zero phase shift and a cutoff frequency between 60 and 100 Hz in order to limit noise but pass...

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