نتایج جستجو برای: incoherent formulation
تعداد نتایج: 118294 فیلتر نتایج به سال:
We present a class of diffraction-free partially coherent beams each member which is comprised finite power, non-accelerating Airy bump residing on statistically homogeneous, Gaussian-correlated background. examine free-space propagation soft apertured realizations the proposed and show that their evolution governed by two spatial scales: coherence width background aperture size. A relative mag...
This dissertation presents new incoherent scatter radar measurement techniques and data analysis methods. The measurements used in the study were collected by connecting a computer-based receiver to the EISCAT (European Incoherent SCATter) radar on Svalbard. This hardware consists of a spectrum analyzer, a PCI-bus-based programmable digital I/O card and a desktop computer with a large-capacity ...
BACKGROUND Photodynamic therapy (PDT) with 5-aminolaevulinic acid (ALA) is an effective and safe treatment option for the treatment of actinic keratosis (AK). Incoherent lamps are often used, matching the absorption maxima of ALA. OBJECTIVES A comparative trial was performed to evaluate the efficacy of recently developed light-emitting diodes (LEDs). METHODS Human epidermal keratinocytes we...
This article presents a new classification framework that can extract individual features per class. The scheme is based on a model of incoherent subspaces, each one associated to one class, and a model on how the elements in a class are represented in this subspace. After the theoretical analysis an alternate projection algorithm to find such a collection is developed. The classification perfo...
Quantum resource theory under different classes of quantum operations advances multiperspective understandings inherent quantum-mechanical properties, such as coherence and entanglement. We establish hierarchies for manipulating entanglement in distributed settings, where at least one the two spatially separated parties are restricted from generating coherence. In these we introduce new also ch...
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