نتایج جستجو برای: operation phase

تعداد نتایج: 798507  

Journal: :Optics express 2010
Joseph Kakande Carl Lundström Peter A Andrekson Zhi Tong Magnus Karlsson Periklis Petropoulos Francesca Parmigiani David J Richardson

We experimentally demonstrate a single-pumped, non-degenerate phase-sensitive parametric amplifier with a precise control of phase and amplitude of the in-going waves and investigate in detail its gain, attenuation and saturation properties in comparison with operation in phase insensitive amplifier (PIA) mode. We experimentally observe the variation of the gain and attenuation as a function of...

2015
Fangzheng Zhang Dengjian Zhu Shilong Pan

ELECT A photonic-assisted scheme for the phase noise measurement of microwave signal sources is proposed based on the optical delay-line method. In the proposed scheme, all the microwave signal processing is implemented in the optical domain, and the electrical devices that would limit the operation bandwidth and measurement sensitivity are avoided, leading to a large operation bandwidth and a ...

Journal: :آب و خاک 0
علیرضا عمادی معصومه خادمی

abstract regarding temporal variation of rivers discharge and demands, for suitable use of dam reservoirs stored water, application of operation rule curves is necessary. operation rules are expressed with rule curves. application of yield model is one of the methods of operation curve preparation, which correlates reservoir operation with reservoir storage volume in first period. in this study...

2010
H. M. Suryawanshi S. S. Tanavade K. L. Thakre M. A. Chaudhari

A single-phase ac-to-dc converter using threephase modified series-parallel resonant converter is proposed in this paper. The three-phase resonant converter is analyzed using Fourier series approach. The design curves for a resonant converter of 2.5 kW rating are plotted. The converter components are selected based on the design curves. The converter is simulated for different load conditions u...

1999
P. Ide

A prominent boost-type S-level topology, which is proved to represent a cost effective and highly efficient solution for switched mode rectifiers is inspected towards its application at wide input voltage range and power line distorted conditions including single-phase supply. Supplementary measures for a lowcost control scheme are described to facilitate the operation under these unfavorable c...

1999
Patrik Larsson

A general-purpose phase-locked loop (PLL) with programmable bit rates is presented demonstrating that large frequency tuning range, large power supply range, and low jitter can be achieved simultaneously. The clock recovery architecture uses phase selection for automatic initial frequency capture. The large period jitter of conventional phase selection is eliminated through feedback phase selec...

2015
E. L. Burgess G. E. Rochau E. L. Neau D. R. Humphreys

The Particle Beam Fusion Accelerator II, PBFA II, is now the largest pulsed power device in operation. This paper will summarize its first year and a half of operation for the Department of Energy (DOE) Inertial Confinement Fusion (ICF) program. Thirty-six separate modules provide 72 output pulses that combine to form a 100 TY output pulse at the accelerator center. PBFA II was successfully tes...

پایان نامه :0 1391

بیمه گران همیشه بابت خسارات بیمه نامه های تحت پوشش خود نگران بوده و روش هایی را جستجو می کنند که بتوانند داده های خسارات گذشته را با هدف اتخاذ یک تصمیم بهینه مدل بندی نمایند. در این پژوهش توزیع های فیزتایپ در مدل بندی داده های خسارات معرفی شده که شامل استنباط آماری مربوطه و استفاده از الگوریتم em در برآورد پارامترهای توزیع است. در پایان امکان استفاده از این توزیع در مدل بندی داده های گروه بندی ...

2005
LESLIE YING

Phase unwrapping is the reconstruction of the originaltrue phase of a wave from its modulo 2p values. It origi-nates in a variety of applications, such as synthetic aper-ture radar, magnetic resonance imaging, and adaptiveoptics. In this article, the problem of two-dimensionalphase unwrapping is defined and the challenges are ad-dressed. A variety of established approach...

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