نتایج جستجو برای: ohmic loss
تعداد نتایج: 449077 فیلتر نتایج به سال:
We develop a model for a regenerative hydrogen-chlorine fuel cell (rHCFC) including four voltage loss mechanisms: hydrogen electrode activation, chlorine electrode activation, chlorine electrode mass transport, and ohmic loss through the membrane. The dependences of each of these losses as a function of two “operating parameters,” acid concentration and temperature; and five “engineering parame...
Making use of a generalized Green’s function technique and Landauer formalism, the temperature depended current-voltage (I-V) characteristics of C60 molecule, sandwiched between two metallic electrodes are numerically investigated. In addition, the influence of the electron-phonon coupling strength on the electronic properties of the molecule is studied. The I-V characteristics of the molecule ...
. فیلتر پیشنهادی دارای فرکانس قطع db 3- در 2.38 ghz و باندگذر این فیلتر، از باند عبور به باند قطع که معمولاً از فرکانس قطع db 3- تا فرکانسی که در آن میزان تضعیف به db 20- میرسد برابر با ghz 0.45است. باند قطع این فیلتر با میزان تضعیف db 21- از ghz 2.5 تا23.5ghz است. insertion loss در باند عبور کمتر از db 0.1 و return loss در باند عبور بهتر از db 16. 9- و در باند قطع نزدیک به 0 db میباشد که نشا...
Non-local heat transport experiments were performed in Alcator C-Mod Ohmic L-mode plasmas by inducing edge cooling with laser blow-off impurity (CaF2) injection. The non-local effect, a cooling of the edge electron temperature with a rapid rise of the central electron temperature, which contradicts the assumption of “local” transport, was observed in low collisionality linear Ohmic confinement ...
GaN ballistic or quasi-ballistic electron devices require short transit distances in the order of a mean free path to avoid longitudinal optical phonon LO emission. Vertical current flow by design takes full advantage of the abrupt and thin layers grown by molecular beam epitaxy (MBE). Moreover, crystal orientation becomes important when ballistic transport is involved since bandstructure depen...
translation as a comunicative process is always said to be associated with various aspects of meaning loss or gain. subtitling as a mode of translating, due to special discoursal and textual conditions imposed upon it, is believed to be an obvious case of this loss or gain. presenting the spoken sound track of a film in writing and synchronizing the perception of this text by the viewers with...
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