نتایج جستجو برای: adjustable parameter
تعداد نتایج: 225172 فیلتر نتایج به سال:
We study 2D-polaritons in an atomically thin dipole-active layer (2D-crystal) placed inside a parallel-plate wavegude, and investigate the possibility to obtain the localized wavegude modes associated with atomic defects. Considering the wavegude width, l, as an adjustable parameter, we show that in the waveguide with l ∼ 10 a, where a is the lattice parameter, the localized mode can be provide...
The shape-adjustable curve constructed by uniform B-spline basis function with parameter is an extension of uniform B-spline curve. In this paper, we study the relation between the uniform B-spline basis functions with parameter and the B-spline basis functions. Based on the degree elevation of B-spline, we extend the uniform B-spline basis functions with parameter to ones with multiple paramet...
We demonstrate broadband infrared pulse shaping by difference-frequency mixing of two visible phase-locked linearly chirped pulses in GaAs. Control of the temporal profile of the emitted field is achieved through this direct tailoring of the exciting visible intensity. The results are in agreement with a simulation with no adjustable parameter.
A correction method for inhomogeneity of magnetic resonance (MR) images was developed based on renormalization transformation. It is a post-processing algorithm on images. Unlike previous post-processing methods, which need to determine either a filter size or a free adjustable parameter for different applications, this presented method is fully automated. Tests on physical phantom data, patien...
Novel optical techniques for sensitive and reproducible fluorescence single cell analysis utilizing setups without single photon counting units are attractive for enhanced low-cost cell parameter screening. In this contribution we present the first microfluidic planar device to form an optofluidic adjustable convex lens with three-dimensional light focusing ability to improve optical sensor sys...
An effective chiral theory of large NC QCD of mesons has been applied to study the form factor of πγγ∗. Besides the poles of vector mesons an intrinsic form factor is found. The slope of the form factor is predicted. The effect of the current quark masses on the decay rate is calculated. There is no adjustable parameter in this study.
Besides the vector meson poles in the form factors of charged pion and kaons additional intrinsic form factors of pion and kaons are found. A detailed study of the form factors of pion and kaons in both time-like and space-like regions is presented. Theory agrees well with data up to q ∼ 1.4GeV . In this study there is no adjustable parameter.
An improved time-variant asymmetric integral barrier function with adjustable parameters is constructed for the first time in this study. The presented function, which by designing an upper limit can be used constraint issues of nonlinear systems. With aid control performance system only changing adjustment when fixing controller. Then, tracking controller developed using to solve position robo...
Evolutionary Algorithms are equipped with a range of adjustable parameters, such as crossover and mutation rates which significantly influence the performance of the algorithm. Practitioners usually do not have the knowledge and time to investigate the ideal parameter values before the optimisation process. Furthermore, different parameter values may be optimal for different problems, and even ...
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