Results 1 to 10 of about 2,247,992 (298)
Energy recovery linac based fully coherent light source [PDF]
Energy recovery linac (ERL) holds great promise for generating high repetition-rate and high brightness electron beams. The application of ERL to drive a free-electron laser is currently limited by its low peak current.
Z. T. Zhao +4 more
doaj +5 more sources
Partially coherent phase imaging with simultaneous source recovery. [PDF]
We propose a new method for phase retrieval that uses partially coherent illumination created by any arbitrary source shape in Köhler geometry. Using a stack of defocused intensity images, we recover not only the phase and amplitude of the sample, but also an estimate of the unknown source shape, which describes the spatial coherence of the ...
Jingshan Z, Tian L, Dauwels J, Waller L.
europepmc +5 more sources
Nonparametric Simultaneous Sparse Recovery: an Application to Source Localization [PDF]
We consider multichannel sparse recovery problem where the objective is to find good recovery of jointly sparse unknown signal vectors from the given multiple measurement vectors which are different linear combinations of the same known elementary ...
Ollila, Esa
core +5 more sources
Structured dissociative PCA methods for high dimensional neuroimaging signal decomposition [PDF]
Sparse principal component analysis (SPCA) and independent component analysis (ICA) pipelines are widely used for fMRI blind source separation. However, applying sparsity and independence constraints in isolation can distort spatial coherence and ...
Muhammad Usman Khalid +4 more
doaj +2 more sources
Nutrient recovery from biomass streams generates novel recycling-derived fertilizers (RDFs). The effect of RDFs depends on their nutrient content and variability, which can aid or hinder their use by end-users.
Amrita Saju +5 more
doaj +1 more source
ENTERPRISES INVESTMENT ACTIVITY: SOURCES OF RECOVERY [PDF]
Background. The article examines the essence and main factors influencing the investment activity of economic entities, identifies the main means of stimulating it. The directions of attracting investments by the sectors of Ukraine’s economy are considered.
GULIAIEVA Nataliia, VAVDIICHYK Iryna
openaire +1 more source
Problem of describing the function of a GPR source
In this paper, we consider the problem of determining the source h(t)δ(x) of electromagnetic waves from GPR data. The task of electromagnetic sensing is to find the pulse characteristic of the medium r(t) and consists in calculating the response of the ...
S.I. Kabanikhin +4 more
doaj +1 more source
ENERGY RECOVERY OF BONE WASTE AS HEAT SOURCE [PDF]
Modern food industry concerning meat producers produce high amounts of bone waste. Bones represent biggest portion of zoo-mass waste which must be destroyed for hygienically reasons.
Juraj Trnka +2 more
doaj +1 more source
Blind source separation (BSS) recovers source signals from observations without knowing the mixing process or source signals. Underdetermined blind source separation (UBSS) occurs when there are fewer mixes than source signals. Sparse component analysis (
Norsalina Hassan, Dzati Athiar Ramli
doaj +1 more source
Analysis of energy-saving effect of fresh air heat recovery system for residential buildings in severe cold area [PDF]
In recent years, the tightness of residential buildings has been continuously enhanced, causing the problem of indoor air quality degradation. Therefore, it is necessary to introduce fresh air that meets the air quality requirements from the outside, and
Hao Yuxiang +3 more
doaj +1 more source

