نتایج جستجو برای: high power

تعداد نتایج: 2432670  

Journal: :Photonics 2022

The high-efficiency capabilities of multijunction laser power converters are demonstrated for high-power applications with an optical input around 1470 nm. InP-based photovoltaic converting III-V semiconductor devices designed here, 10 lattice-matched subcells (PT10-InGaAs/InP), using thin InGaAs absorbing layers connected by transparent tunnel junctions. results confirm that such long-waveleng...

2013
Alexander Hein

To access the green spectral range for display applications, high-power optically pumped semiconductor disk lasers (OPSDLs) in combination with second-harmonic generation have been realized. A frequency-doubled output exceeding 9.5W is achieved at a wavelength of 520 nm. The wavelength of these devices can be tuned over a rather broad range of more than 20 nm in the second-harmonic regime. In t...

2004
Anne Andersson

Three Nordic National Metrology Institutes (NMIs) and one company participated in the Nordtest project no 1634-03 High Power Fibre Optic Calibration. The project was successful and the service of calibrating high power fibre optic detectors can now be offered by the three NMIs. Each of the NMIs has established traceability to their own national standards for optical power. The NMIs used the sam...

Journal: :journal of computational applied mechanics 0
saeid shakki univ of tehran mahdi moghimi zand univ of tehran

typically, two configurations are used for energy harvesting, with different advantages: piezoelastic and piezomagnetoelastic. best performance of piezoelastic configuration is limited to its narrow bandwidth around the resonance frequency. if the excitation frequency slightly deviates from the resonance frequency, the power-out is severely reduced. to overcome this, the piezomagnetoelastic has...

1965
J. v. Lebacqz

This paper will review the evolution of high power klystrons and their applications in supplying rf energy for linear accelerators. Other types of possible rf sourc2s were conside,.ed for SLAC. and the reasons for the selectioa of klystrons will be _ gcven. A brief revir-5 of klystr 1 typr in j :e fo-. various accelerators will also be given, but tht emphasis will be on the work done by Stanfor...

2006
Yaseer A. Durrani Teresa Riesgo

− In this paper, we propose a numerical power estimation technique for register transfer level. This technique allows to estimate the power dissipation of intellectual property (IP) components to their statistical knowledge of the primary inputs/outputs. During power estimation procedure, the sequence of an input stream is generated using input metrics and the numerical macromodel function is u...

حاصل طلب, سعید, مرتضوی, مجتبی, موسوی, سید خلیل, پورصالح, علی محمد, کابلی, شهریار,

In this paper, a high power tetrode tube (TH781-200kW, cw) modulator is designed and implemented. This modulator is used for a part of RF system of the first Iranian high power electron accelerator project with similar structure to Rhodotron accelerator. Regarding to the level of sensitive and importance of TH781 tube the modulator system designed with high accuracy. So beside of power suppli...

In this paper, a bidirectional DC-DC converter with high power density for energy storage application is proposed. The presented converter provides power transfer in both directions only with adjusting phase shift angle. Zero voltage switching (ZVS) in both turn on and turn off moments of all switches is the major capability of the converter that makes it suitable for high power applications. Z...

2013
Frederick L. Wentworth

Theoretical estimates of phase shifter performance as a function of material parameters are presented by examining the results obtained from the small perturbation model used by Button and Lax and from the fully ierrite loaded, parallel plane waveguide model used by Suhl «And Walker. The extension of Suhi's theory on nonlinear effects at high power by Fletcher and Silence is applied to relate t...

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