نتایج جستجو برای: Phase acceleration

تعداد نتایج: 642148  

اسدی, رضا, جودی, ندا, حیدری, پیام, گنجی, مریم,

In this paper a novel optical pressure and acceleration sensor based on micro electro mechanical systems (MEOMS) has been designed. For this purpose an integrated Mach- Zander interferometer has been used in LiNbO3 diaphragm. In this sensor, the strain caused by applied pressure or acceleration leads to a change in refractive index of the wave guide in the diaphragm due to the photoelastic effe...

Journal: :Water environment research : a research publication of the Water Environment Federation 2008
Kartik Chandran Barth F Smets

Batch autotrophic ammonia oxidation tracked through oxygen uptake measurements displays a preliminary acceleration phase. Failure to recognize the acceleration phase and fitting batch ammonia oxidation profiles with standard Monod-type mathematical models can result in meaningless kinetic parameter estimates. The objectives of this study were to examine the factors controlling the acceleration ...

ژورنال: مواد پرانرژی 2015

Recent studies in solid composite propellants indicate that acceleration field cause to increase in burning rate. Relation between acceleration field and burning rate of propellant have an important effect on missile systems ballistic, especially on perforated grain missiles. If these effects has neglected in design phase, the pressure-time profile shifted out of acceptable rage and result in i...

1990
F.-J. Decker R. K. Jobe

In linear accelerators with two or more bunches the beam loading of one bunch will influence the energy and energy spread the following bunches. This can be corrected by quickly changing the phase of a travelhng wave structure, so that each bunch recieves a slightly different net phase. At the SLAC Linear Collider (SLC) three bunches, two (e+,.e-) for the high energy collisions and one (e--scav...

2014
Ryu Nagahara Takeo Matsubayashi Akifumi Matsuo Koji Zushi

This study investigated kinematics of human accelerated sprinting through 50 m and examined whether there is transition and changes in acceleration strategies during the entire acceleration phase. Twelve male sprinters performed a 60-m sprint, during which step-to-step kinematics were captured using 60 infrared cameras. To detect the transition during the acceleration phase, the mean height of ...

2001
J. ZHANG K. P. DERE R. A. HOWARD M. R. KUNDU S. M. WHITE

The temporal relationship between coronal mass ejections (CMEs) and associated solar Ñares is of great importance to understanding the origin of CMEs, but it has been difficult to study owing to the nature of CME detection. In this paper, we investigate this issue using the Large Angle and Spectrometric Coronagraph and the EUV Imaging Telescope observations combined with GOES soft X-ray observa...

Farjad Pezeshk, Abbas, Sadeghi, Heydar,

Introduction and Objectives. The trajectory of center of pressure (COP) during the stance phase of gait is considered as an important parameter in assessing of dynamic balance, foot and ankle function and effectiveness of shoe and orthotics. The aim of this study was to determine the COP trajectory during stance phase of gait in healthy males and females, by means of Pedar-X plantar pressure me...

2009
F. Staehle S. Bauer B. Jung J. Hennig M. Markl

Introduction: The phase contrast principle (PC) can be employed to measure flow acceleration by using acceleration sensitive encoding gradients. The direct assessment of regional acceleration can provide valuable information regarding changes in timing (temporal acceleration) and direction (convective acceleration) of flow. Although acceleration data may be estimated from velocity encoded image...

اخیانی, مینا, جهانگیری, فاضل, رضایی پندری, محمد, مسعودی, رضا, نیکنام, علیرضا,

In this paper, electron acceleration in the field of laser pulse is investigated. To limit the interaction region for electron pulse, which is required for acceleration, a new method is presented based on the injection of electron on temporal peak of the laser pulse. In this method, the electron is provided by a plasma source and is steered inside the laser field by utilizing the magnetic field...

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