Results 31 to 40 of about 26,367 (267)
Reseaech on identification of caving coal and rock traits
In order to recognize caving coal and rock traits in fully mechanized caving face, an identification method based on continuous wavelet transform and improved singular value decomposition (SVD) was proposed.
LI Yiming, FU Shichen, LI Rui, WU Miao
doaj +1 more source
The probability of a subspace swap in the SVD [PDF]
We extend the work of Tufts, Kot, and Vaccaro (1987, 1991) to improve the analytical characterization of threshold breakdown in SVD methods. Our results sharpen the Tufts, Kot, and Vaccaro results and lower bound the probability of a subspace swap in the SVD. >
John K. Thomas +2 more
openaire +1 more source
The Evolution of Double Pylorus Associated With NSAIDs-Induced Gastric Ulcer
Double pylorus is an uncommon condition where two communicating channels between the gastric antrum and duodenal bulb exist and found incidentally by esophagogastroduodenoscopy.
Rasco Sandy Sihombing +2 more
doaj +1 more source
Time‐resolved X‐ray solution scattering captures how proteins change shape in real time under near‐native conditions. This article presents a practical workflow for light‐triggered TR‐XSS experiments, from data collection to structural refinement. Using a calcium‐transporting membrane protein as an example, the approach can be broadly applied to study ...
Fatemeh Sabzian‐Molaei +3 more
wiley +1 more source
This protocol paper outlines methods to establish the success of a time‐resolved serial crystallographic experiment, by means of statistical analysis of timepoint data in reciprocal space and models in real space. We show how to amplify the signal from excited states to visualise structural changes in successful experiments.
Jake Hill +4 more
wiley +1 more source
Gravity method generally can read the difference of rock density to identify subsurface structures. This research was conducted in Riau area with the aim of knowing fault and subsurface structure, and determining sub-basin boundary.
Wuri Andari +2 more
doaj +1 more source
OFDM Channel Estimation Along with Denoising Approach under Small SNR Environment using SSA
—In this paper, a de-noising approach in conjunction with channel estimation (CE) algorithm for OFDM systems using singular spectrum analysis (SSA) is presented. In the proposed algorithm, the initial CE is computed with the aid of traditional linear
E. Hari Krishna +2 more
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ABSTRACT Objective To explore how cerebral hypoxia and Normal‐Appearing White Matter (NAWM) integrity affect MS lesion burden and clinical course. Methods Seventy‐nine MS patients, including 13 clinically isolated syndrome (CIS) patients and 66 relapsing–remitting multiple sclerosis (RRMS) patients, and 44 healthy controls (HCs) were recruited from ...
Xinli Wang +8 more
wiley +1 more source
Using singular value decomposition for generalized linear autoregression of signals
Autoregressive models (AR) are fundamental for analysis, representation, and prediction of signals. AR modelling uses the premise that past signal values influence current ones.
Schanze Thomas
doaj +1 more source
Medical Image Enhancement using Modified HE with DWT and SVD [PDF]
Medical imaging is essential for obtaining precise information to assess patient health and provide effective treatment. The initial analysis of a wide range of medical images is vital for identifying abnormalities.
Anuj Bhardwaj, Neha Chandra
doaj +1 more source

