Results 41 to 50 of about 2,613,112 (257)
Analysis and Optimization of Aperture Design in Computational Imaging
, 2017 There is growing interest in the use of coded aperture imaging systems for a variety of applications. Using an analysis framework based on mutual information, we examine the fundamental limits of such systems---and the associated optimum aperture coding--
Thrampoulidis, Christos +2 more
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A Fast Algorithm for Parabolic PDE-based Inverse Problems Based on Laplace Transforms and Flexible Krylov Solvers [PDF]
, 2015 We consider the problem of estimating parameters in large-scale weakly nonlinear inverse problems for which the underlying governing equations is a linear, time-dependent, parabolic partial differential equation.
Bakhos, Tania +2 more
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Effects of Different Penetration Patterns on a Fault during Underground Fluid Injection
Geofluids, 2019 At underground fluid injection sites with natural faults, understanding how to avoid the subsequent fault reactivation and induced seismicity plays a crucial role in the success of subsurface anthropogenic activities.
Xiaochen Wei +5 more
doaj +1 more source
Transport Properties in Nontwist Area-Preserving Maps [PDF]
, 2009 Nontwist systems, common in the dynamical descriptions of fluids and plasmas, possess a shearless curve with a concomitant transport barrier that eliminates or reduces chaotic transport, even after its breakdown.
Caldas, I. L. +4 more
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Reactive Transport Simulation of Fracture Channelization and Transmissivity Evolution
Hazardous Waste, 2019 Underground fractures serve as flow conduits, and they may produce unwanted migration of water and other fluids in the subsurface. An example is the migration and leakage of greenhouse gases in the context of geologic carbon sequestration. This study has
H. Deng, C. Peters
semanticscholar +1 more source
Quantum theory of photonic crystals
, 2013 In this paper, we have firstly presented a new quantum theory to study one-dimensional photonic crystals. We give the quantum transform matrix, quantum dispersion relation and quantum transmissivity, and compare them with the classical dispersion ...
Chen, San +8 more
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Squeezed Fock state by inconclusive photon subtraction [PDF]
, 2005 We analyze in details the properties of the conditional state recently obtained by J. Wenger, et al. [Phys. Rev. Lett. {\bf 92}, 153601 (2004)] by means of inconclusive photon subtraction (IPS) on a squeezed vacuum state $S(r)\ket{0}$.
Arvind +3 more
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Effect of Well Resistance on Time Factor Ratio Due to PVD Deformation
Journal of the Civil Engineering Forum, 2021 One of the most common soft soil enhancement techniques used to expedite the consolidation time significantly is Prefabricated Vertical Drains (PVD). This technique needs a sufficient discharge capacity value because it primarily functions as a drainage ...
Galuh Chrismaningwang +3 more
doaj +1 more source
Transmissibility and transmission of respiratory viruses [PDF]
Nature Reviews Microbiology, 2021 Human respiratory virus infections lead to a spectrum of respiratory symptoms and disease severity, contributing to substantial morbidity, mortality and economic losses worldwide, as seen in the COVID-19 pandemic. Belonging to diverse families, respiratory viruses differ in how easy they spread (transmissibility) and the mechanism (modes) of ...
openaire +2 more sources
Transmission Character of General Function Photonic Crystals
, 2012 In the paper, we present a new general function photonic crystals (GFPCs), which refractive index of medium is a arbitrary function of space position. Unlike conventional photonic crystals (PCs), which structure grow from two mediums $A$ and $B$, with ...
Ba, Nuo +8 more
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