نتایج جستجو برای: ohmic loss

تعداد نتایج: 449077  

Journal: :Physical review 2023

Dephasing in quantum systems is typically the result of their interaction with environmental degrees freedom. We investigate within a spin-boson model influence super-Ohmic environment on dynamics two-state system. A thereby models typical bulk phonons which are common disturbance for solid state as, example, nitrogen-vacancy centers. By applying numerically exact quasiadiabatic path-integral a...

Journal: :Journal of integrative neuroscience 2009
Bo Deng

Electronic circuit analogues of biological membranes are presented, by which the passive channels are modeled as parallel and serial combinations of resistors (Ohmic conductors) and diffusors (negative non-Ohmic conductors), and the active channels of the one-way ion pumps are modeled as one-way inductors. We show that our simple analog models can reproduce known phenomena of membrane excitabil...

Hamed Saberian Soleiman Abbasi Zohreh Hamidi Esfahani,

In this research the effect of conventional and ohmic pasteurization and storage time at different temperatures on some bioactive components of Aloe vera gel juice was investigated. Aloe vera gel juice was pasteurized conventionally and ohmically at 90 ºC for 1 min. The effect of pasteurization on vitamin C, total phenolic content  and juice color was evaluated. The samples pasteurized conv...

2004
D.A.J. Moran E. Boyd F. McEwan H. McLelland C. R. Stanley I. G. Thayne

This work describes the improved uniformity of short gate length (sub100nm) T-gate lithography observed for InP HEMT devices through the development of a nonannealed ohmic contact process. The incorporation of such a process allows the reversal of ohmic and gate levels as part of a standard device process flow. This eliminates fluctuations in the gate geometry that result from the spinning of g...

2017
Masaharu Yoshimizu Yuki Hotori Hiroshi Irie

Visible light-sensitive photocatalyst was developed by combining n-type silicon (n-Si) and tungsten trioxide (WO3, n-Si/WO3), yielding an ohmic contact in between. In this system, the ohmic contact acted as an electron-and-hole mediator for the transfer of electrons and holes in the conduction band (CB) of WO3 and in the valence band (VB) of n-Si, respectively. Utilizing thusconstructed n-Si/WO...

2013
WOJCIECH MACHERZYŃSKI KORNELIA INDYKIEWICZ BOGDAN PASZKIEWICZ

Ohmic contacts to AlGaN/GaN heterostructures, which have low contact resistance and a good surface morphology, are required for the development of high temperature, high power and high frequency electronic devices. The paper presents the investigation of a Ti/Al based Ti/Al/Ni/Au ohmic contact to AlGaN/GaN heterostructures. Multilayer metallization of Ti/Al/Ni/Au was evaporated by an electron g...

2014
R. Boivin F. Bombarda J Goetz J Snipes Y Takase J Terry

Early results from the Alcator C-Mod tokamak indicate that ohmic energy confinement does not obey the Neo-Alcator scaling. Instead 'Ohmic L-mode' confinement, close to ITER89-P, is obtained, which substantially exceeds Neo-Alcator under some circumstances. ICRF-heated plasmas follow the same scaling. H-modes are observed both in ohmic and ICRF heated plasmas, with confinement enhancements of ab...

2016
Chowdhury Al-Amin Mustafa Karabiyik Phani Kiran Vabbina Raju Sinha Nezih Pala

This work proposes a novel geometry field effect transistor with graphene as a channel-graphene field-effect transistor (GFET), having a hybrid contact that consists of an ohmic source/drain and its extended part towards the gate, which is capacitively coupled to the channel. The ohmic contacts are used for direct current (DC) biasing, whereas their capacitive extension reduces access region le...

2004
I. CASTRO B. MACEDO J. A. TEIXEIRA A. A. VICENTE

This work deals with the determination of the inactivation kinetics of several enzymes, most of them used as time-temperature integrators in the food industry. The tested enzymes were polyphenoloxidase, lipoxygenase, pectinase, alkaline phosphatase, and -galactosidase, and the inactivation assays were performed under conventional and ohmic heating conditions. The thermal history of the samples ...

2003
P. H. Roberts

Simulations have shown that convection-driven geodynamo models can produce reversing magnetic fields of a similar strength to those of the geomagnetic field. These simulations suggest that the ohmic dissipation arising from the geodynamo is not due solely to the largest scale harmonics of the magnetic field, but is dominated by contributions from smaller scale components. It is argued that, in ...

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