Results 61 to 70 of about 25,608 (296)

Reconstructing enzyme evolution by protein engineering

open access: yesFEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler   +2 more
wiley   +1 more source

Robust Adaptive Beamforming against Signal Steering Vector Mismatch and Jammer Motion

open access: yesInternational Journal of Antennas and Propagation, 2015
Since adaptive beamformer suffers from output performance degradation in the presence of interference nonstationarity and signal steering vector mismatch, a novel robust null broadening adaptive beamforming is proposed. The proposed method is realized by
Xiaojun Mao   +4 more
doaj   +1 more source

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

open access: yesMolecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

Approach of wideband robust adaptive beamforming based on microphone arrays

open access: yesTongxin xuebao, 2006
The approach of wideband robust adaptive beamforming (RABF) for speech enhancement based on micro-phone arrays was investigated. It combined the technologies of frequency focusing and diagonal loading, with the former aiming at frequency domain ...
LIN Jing-ran   +3 more
doaj   +2 more sources

Robust adaptive beamforming algorithm

open access: yesTongxin xuebao, 2009
The performance of least mean squares(LMS) algorithm degraded dramatically in the presence of even slight steering vector mismatches.In order to overcome the shortage,a novel robust adaptive beamforming algorithm based on the variable diagonal loading ...
SONG Xin   +3 more
doaj   +2 more sources

Robust Recursive Algorithm under Uncertainties via Worst-Case SINR Maximization

open access: yesJournal of Electrical and Computer Engineering, 2015
The performance of traditional constrained-LMS (CLMS) algorithm is known to degrade seriously in the presence of small training data size and mismatches between the assumed array response and the true array response.
Xin Song   +3 more
doaj   +1 more source

Network divergence analysis identifies adaptive gene modules and two orthogonal vulnerability axes in pancreatic cancer

open access: yesMolecular Oncology, EarlyView.
Tumors contain diverse cellular states whose behavior is shaped by context‐dependent gene coordination. By comparing gene–gene relationships across biological contexts, we identify adaptive transcriptional modules that reorganize into distinct vulnerability axes.
Brian Nelson   +9 more
wiley   +1 more source

Experimental and numerical study on reinforced concrete beam-column joints with diagonal bars: Effects of bonding condition and diameter

open access: yes, 2022
Diagonal bars anchored in beams have been proven to be an effective reinforcement detail for reinforced concrete interior beam-column joints (BCJs) in mitigating the congestion of conventional stirrups without compromising their seismic performance. This
Li, Bo   +3 more
core   +1 more source

Seismic Performance Test of Expansive Polystyrene Granule Cement Latticed Concrete Wall with Diagonal Bracing

open access: yes工程科学与技术, 2022
Expansive polystyrene granule cement (EPSC) non-demoulding latticed concrete wall is a composite wall integrating insulation and structure. The setting of diagonal bracing is a new mode of the wall.
Xiaojun LI   +3 more
doaj  

A Novel Diagonal-Cruciform Test Specimen to Evaluate Sheet Formability [PDF]

open access: yesMATEC Web of Conferences
This paper investigates the application of the recently proposed diagonal-cruciform test specimen to evaluate the formability of C11000 copper sheets. The specimen features a two-dimensional reticular structure with triangular interconnected arms that ...
Sampaio Rui F. V.   +4 more
doaj   +1 more source

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