نتایج جستجو برای: transmission matrix

تعداد نتایج: 602861  

Journal: :IEEE Transactions on Communications 2021

Consider a multi-cell mobile edge computing network, in which each user wishes to compute the product of user-generated data matrix with network-stored matrix. This is done through task offloading by means input uploading, distributed at nodes (ENs), and output downloading. Task may suffer long delay since servers some ENs be straggling due random computation time, wireless channels experience ...

Journal: :Physical Review Letters 2021

Speckle patterns are ubiquitous in optics and have multiple applications for which the control of their spatial correlations is essential. Here, we report on a method to engineer speckle behind scattering medium through singular value decomposition transmission matrix. We not only demonstrate over grain size shape but also realize with nonlocal correlations. Moreover, show that reach our extend...

Journal: :Journal of The Optical Society of America B-optical Physics 2021

By using tailored disorder in the regime of diffusive light propagation, core-shell cloaking structures have previously been presented. These make cloak and an arbitrary interior nearly indistinguishable from surrounding. This statement holds true for all incident polarizations light, a broad range directions three dimensions, visible wavelengths. Here, by performing interferometric transmissio...

Journal: :Physical review letters 2010
S M Popoff G Lerosey R Carminati M Fink A C Boccara S Gigan

We introduce a method to experimentally measure the monochromatic transmission matrix of a complex medium in optics. This method is based on a spatial phase modulator together with a full-field interferometric measurement on a camera. We determine the transmission matrix of a thick random scattering sample. We show that this matrix exhibits statistical properties in good agreement with random m...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده مهندسی 1387

abstract this paper discusses several commonly used models for strategic marketing¹ including market environmental analysis methods (i.e. swot and pest analysis) and strategic marketing tools and techniques (i.e. boston matrix and shell directional policy matrix)and shows how these models may help a firm to achieve its strategic goals. at first, the main reason for doing this research is de...

Journal: :Optics express 2017
Jian Xu Haowen Ruan Yan Liu Haojiang Zhou Changhuei Yang

Focusing light through scattering media has broad applications in optical imaging, manipulation and therapy. The contrast of the focus can be quantified by peak-to-background intensity ratio (PBR). Here, we theoretically and numerically show that by using a transmission matrix inversion method to achieve focusing, within a limited field of view and under a low noise condition in transmission ma...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده ریاضی 1389

one of the most important number sequences in mathematics is fibonacci sequence. fibonacci sequence except for mathematics is applied to other branches of science such as physics and arts. in fact, between anesthetics and this sequence there exists a wonderful relation. fibonacci sequence has an importance characteristic which is the golden number. in this thesis, the golden number is observed ...

Nowadays polymer nanocomposites have introduced as a new class of food packaging materials due to their enhanced mechanical, thermal, and barrier properties. In this study PET nano composites were prepared by melt blending of poly (ethylene terephthalate) pellets and mica nanoparticles. The morphology of PET/mica nanocomposites was characterized by X-ray diffraction and transmission electron mi...

Journal: :journal of nanostructures 2012
m. sobhani h. arabi a. r. mirhabibi

copper matrix composite reinforced by 1wt.% tib2 particles was prepared using in situ reaction of cu-1.4wt.% ti and cu-0.7wt.% b by rapid solidification and subsequent heat treatment for 1-20 hrs at 900ºc. high-resolution transmission electron microscopy (hrtem) characterization showed that primary tib2 particles were formed in liquid copper. heat treatment of as-solidified samples led to the f...

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