in biaxially strained p-mosfet with si channel, formation of a parasitic parallel channel due to misalignment of energy bands degrades device performance by increasing off-state current. in this paper a new approach has been introduced to eliminate this parasitic channel by increasing the dopant concentration of virtual substrate up to . using simulation the impact of this method on the parasit...

We report observations of three SDSS z > 6 QSOs at 250 GHz (1.2 mm) using the 117-channel MaxPlanck Millimeter Bolometer (MAMBO-2) array at the IRAM 30-meter telescope. J1148+5251 (z = 6.41) and J1048+4637 (z = 6.23) were detected with 250 GHz flux densities of 5.0±0.6mJy and 3.0±0.4 mJy, respectively. J1630+4012 (z = 6.05) was not detected with a 3σ upper limit of 1.8 mJy. Upper flux density l...

We study at LEP II and Next Linear Collider energies Higgs production via the bremsstrahlung channel e + e ? ! ZH, with Z ! + ? and H ! b b, and the corresponding irreducible background, in presence of hard photon radiation, both from the initial and the nal state. We carry out an analysis that includes the computation of all the relevant contributions to the complete tree{level matrix element ...

zinc is a substance that regulates neural excitability by binding whit sodium channel and potassium channel. the efficiency of free zinc ion, make down the neural survival rate, reduced the peak amplitude of na+ and make depolarization na channel, increased the peak amplitude of transition outward k+ currents and delayed rectifier. also it is an effective blocker of one subtype of tetrodoxine (...

In this paper, a new approach for designing two-channel PR FIR filter banks with low system delay is proposed. It is based on the generalization of the structure previously proposed by Phoong et al 161. Such structurally PR filter banks are parameterized by two functions a ( z ) and b ( z ) which can be chosen as linear-phase FIR or allpass functions to construct FIMIR filter banks with good fr...

The CDF and D0 data of nearly 475 pb in the dilepton channel is used to probe a recent class of models, Stueckelberg extensions of the Standard Model (StSM), which predict a Z′ boson whose mass is of topological origin with a very narrow decay width. A Drell-Yan analysis for dilepton production via this Z′ shows that the current data put constraints on the parameter space of the StSM. With a to...

Consider a perfect AO system with a very fine wavefront sampling interval and a very small actuator interval. If this AO system senses wavefront at a wavelength, λWFS, and does science imaging at another wavelength, λSCI , the light paths through the turbulent atmosphere at these two wavelengths are slightly different for a finite zenith distance, z. The error in wavefront reconstruction of the...

Associated production of Intermediate Higgs or Z-boson with t ¯ t pair in γγ collision ABSTRACT Photon-photon linear colliders can be realized by laser back-scattering technique on the next generation linear e + e − colliders. Here the associated productions of an intermediate mass Higgs (IMH) or Z-boson with t ¯ t pair in γγ collisions are studied. Since IMH is very unlikely to decay into t ¯ ...

A new formalism is presented for describing valence fluctuating Tm impurities. Starting from the selfconsistent perturbation scheme valid at arbitrary temperatures, the present formalism incorporates not only the valence fluctuation between 4f12and 4f13, but also the coupled 4f13 and a conduction electron scattering channel through Tmatrix, the latter yielding a singlet ground state at low temp...

Collider signatures containing bosons and jets are particularly interesting. Recent theoretical effort has been devoted to determining predictions of W/Z + multiple parton production; the high statistics sample of W/Z + jets events collected at the Tevatron is a valuable testbed for probing the validity of these calculations. The final state containing a Z or W boson and one or more b-jets is a...