Results 151 to 160 of about 9,171,861 (296)
Hyperspectral Image Mixed Noise Removal Based on Sparsity Constraint and Low-Rank Approximation
IEEE Journal of Selected Topics in Applied Earth Observations and Remote SensingHyperspectral images (HSIs) are often corrupted by various noise during acquisition, which leads to a reduction in HSI quality. Therefore, HSI denoising is a necessary preprocessing step for their further application.
Huiheng Zhang +7 more
doaj +1 more source
Chiral separation of chloroalkanes with the chromatographic column onboard Martian rovers
FEBS Letters, EarlyView.Computer image of the Rosalind Franklin Rover of ESA's ExoMars mission. ExoMars is scheduled to land on planet Mars in Oxia Planum in 2029. This area represents an interesting spot to look for biosignatures. Investigations of ExoMars include measurement on molecular chirality. We show that chiral chloroalkanes, that have been identified on Mars, can be
Asma Merzougui +4 more
wiley +1 more source
Low rank Tucker-type tensor approximation to classical potentials
Open Mathematics, 2007 Khoromskij B., Khoromskaia V.
doaj +1 more source
Efficient Techniques for Low-Rank Tensor Approximation and Applications in Robust Object Detection
TechnologiesThis paper introduces efficient randomized fixed-precision and single-pass algorithms for low-tubal-rank approximation of third-order tensors. The proposed fixed-precision algorithms are faster and more efficient than the existing algorithms for ...
Salman Ahmadi-Asl +3 more
doaj +1 more source
FEBS Letters, EarlyView.Synechocystis strains deficient in succinate dehydrogenase (SDH) secrete more succinate than the WT under dark anaerobic conditions, supporting that SDH then primarily acts as SDH, not as a fumarate reductase. L‐aspartate oxidase (Laspo) from Synechocystis is functional under anaerobic conditions, reducing fumarate to succinate.
Kateryna Kukil +3 more
wiley +1 more source
CP decomposition and low-rank approximation of antisymmetric tensors [PDF]
For the antisymmetric tensors the paper examines a low-rank approximation which is represented via only three vectors. We describe a suitable low-rank format and propose an alternating least squares structure-preserving algorithm for finding such ...
Perisa, Lana, Begovic, Erna
core +1 more source
Artificial molecular machines and motors—Design and control of nanoscale motion
FEBS Letters, EarlyView.Molecules are constantly moving because of thermal fluctuations, but random motion alone cannot be exploited to perform directional tasks. Artificial molecular machines use chemical, electrical, or light energy to bias this motion. Molecular shuttles, rotary motors, and supramolecular pumps illustrate how nanoscale movement can be controlled and ...
Leonardo Andreoni, Alberto Credi
wiley +1 more source
The ubiquitin system in normal and infected germinal center B cells
FEBS Letters, EarlyView.The ubiquitin system plays a central role in germinal center (GC) B cells, influencing differentiation to long‐lived memory B cells. Oncogenic gammaherpesviruses gain access to memory B cells by establishing latency in GC B cells. Mapping ubiquitin mechanisms in normal and infected GC B cells will define specific molecular circuits in B cells germane ...
Destiny Davis +2 more
wiley +1 more source
3D Tensor Based Nonlocal Low Rank Approximation in Dynamic PET Reconstruction. [PDF]
Sensors (Basel), 2019 Xie N, Chen Y, Liu H.
europepmc +1 more source
Quaternion tensor low rank approximation
Abstract In this paper, we propose novel approaches for low-rank approximation of quaternion tensors. The first method employs quasi-norms to approximate a low-rank tensor using the QT-product, which generalizes the L-product to N-mode quaternions.
Alaeddine Zahir +2 more
openaire +1 more source