Results 41 to 50 of about 228,732 (306)
Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM
FEBS Letters, EarlyView.Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley +1 more source
Design and Optimization of the Bionic Flexible Gripper Based on Magnetically Sensitive Rubber
ActuatorsFlexible grippers based on magnetically sensitive rubber have garnered significant research attention due to their high gripping adaptability and ease of control.
Xianhua Bian +4 more
doaj +1 more source
Nonlinear Model and Qualitative Analysis for Coupled Axial/Torsional Vibrations of Drill String
Shock and Vibration, 2016 A nonlinear dynamics model and qualitative analysis are presented to study the key effective factors for coupled axial/torsional vibrations of a drill string, which is described as a simplified, equivalent, flexible shell under axial rotation.
Fushen Ren +4 more
doaj +1 more source
Alexandria Engineering Journal, 2023 The design of large wind turbine drivetrain systems is trending towards light weight and integration. To ensure the safe operation of the drivetrain system, investigating the electromechanical–rigid–flexible interaction of wind turbine transmission ...
Ruibo Chen, Datong Qin, Changzhao Liu
doaj +1 more source
Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions
FEBS Letters, EarlyView.We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva +10 more
wiley +1 more source
Reconstruction of Input Excitation Acting on Vibration Isolation System
Shock and Vibration, 2016 Vibration isolation systems are widely employed in automotive, marine, aerospace, and other engineering fields. Accurate input forces are of great significance for mechanical design, vibration prediction, and structure modification and optimization.
Pan Zhou +3 more
doaj +1 more source
FEBS Letters, EarlyView.The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li +2 more
wiley +1 more source
Review of Response and Damage of Linear and Nonlinear Systems under Multiaxial Vibration
Shock and Vibration, 2014 A review of past and recent developments in multiaxial excitation of linear and nonlinear structures is presented. The objective is to review some of the basic approaches used in the analytical and experimental methods for kinematic and dynamic analysis ...
Ed Habtour +5 more
doaj +1 more source
Excitation of atoms in an optical lattice driven by polychromatic amplitude modulation
, 2015 We investigate the mutiphoton process between different Bloch states in an amplitude modulated optical lattice. In the experiment, we perform the modulation with more than one frequency components, which includes a high degree of freedom and provides a ...
Chen, Xuzong +5 more
core +1 more source
Structural biology of ferritin nanocages
FEBS Letters, EarlyView.Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley +1 more source