نتایج جستجو برای: finite strip
تعداد نتایج: 277216 فیلتر نتایج به سال:
We define pure gauge QCD on an infinite strip of width L. Techniques similar to those used in finite T QCD allow us to relate 3D-observables to pure QCD 2 behaviors. The non triviality of the L → 0 limit is proven and the generalization to four dimensions described. The spectrum of the theory in the small width limit is analyzed and compared to that of the two dimensional theory.
In this paper we present the surface wave of microstrip antenna reduce by using parasitic array at the patch ,it is a wide band antenna and frequency range of this wide band antenna lie from 1.168GHz-3.854GHz.The proposed antenna is simulated by using IE3D simulated software. This antenna can be used in WiMax,Bluetooth and Wireless communication. KeywordsMicrostrip antenna; impedance matching ;...
When viewed from the stern, a ship's turbulent wake appears as a narrow strip of bubble-whitened water converging toward the horizon. The wake does not reach a sharp point on the horizon but has a finite angular width, indicating that the Earth is not flat, but rather round. A simple analysis of the geometry of the observations shows that the radius of the Earth can be estimated using only simp...
A three-point vector difference scheme on a infinite interval is considered. Method of reduction of this scheme to a scheme with a finite number of nodes is proposed. Method is based on the extraction of sets of solutions of the difference equation, satisfying the limiting conditions at infinity. The method is applied for numerical solution of an elliptic singularly perturbed problem in a strip...
We have tested the effectiveness of punch-through protection (PTP) structures on n-on-p AC-coupled Silicon strip detectors using pulses from an 1064 nm IR laser, which simulate beam accidents. The voltages on the strips are measured as a function of the bias voltage and compared with the results of DC I–V measurements, which are commonly used to characterize the PTP structures. We find that the...
The dynamics of elastic strips, i.e. long thin rods with non-circular cross-section, is analyzed by studying the solutions of the appropriate Kirchhoff equations. First, it is shown that if a naturally straight strip is deformed into a helix, the only equilibrium helical configurations are those with no internal twist and whose principal bending direction is either along the normal or the binor...
Finite time singularity formation in a fourth order nonlinear parabolic partial differential equation (PDE) is analyzed. The PDE is a variant of a ubiquitous model found in the field of microelectromechanical systems (MEMS) and is studied on a one-dimensional (1D) strip and the unit disc. The solution itself remains continuous at the point of singularity while its higher derivatives diverge, a ...
Numerical transfer-matrix methods are applied to two-dimensional Ising spin systems, in the presence of a confining magnetic field which varies with distance |x| to a "trap center," proportionally to (|x|/ℓ)p, where p>0 . On a strip geometry, the competition between the "trap size" ℓ and the strip width L is analyzed in the context of a generalized finite-size scaling ansatz. In the low-field r...
This paper deals with a particular “packing” problem, namely the two dimensional strip packing problem, where a finite set of objects have to be located in a strip of fixed width and infinite height. The variant studied here considers regular items (they are rectangular to be more precise) that must be packed without overlap, rotations being not allowed. The objective is to minimize the height ...
We introduce new combinatorial models called strip bundles for the quantum affine algebra Uq(D4(3)) and give realizations of crystal B(∞) highest weight crystals B(λ) over in terms bundles. In these bundle realizations, B(Λ1) natural representation V(Λ1) finite Uq(G2) plays a crucial role.
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