Results 121 to 130 of about 7,767,476 (330)
Application of a system modification technique to dynamic tuning of a spinning rotor blade [PDF]
An important consideration in the development of modern helicopters is the vibratory response of the main rotor blade. One way to minimize vibration levels is to ensure that natural frequencies of the spinning main rotor blade are well removed from ...
Spain, C. V.
core +1 more source
Advanced Science, EarlyView.Our study identifies selenium deficiency as a hallmark of MASH pathogenesis. Dietary selenium supplementation enhances hepatic fatty acid oxidation (FAO) and attenuates MASH progression by activating the PPARα pathway via selenoprotein H (SELENOH). This selenium‐SELENOH‐PPARα nexus redefines the functional scope of selenoproteins, moving from redox ...
Yuwei Zhang +11 more
wiley +1 more source
Kinesin‐Induced Buckling Reveals the Limits of Microtubule Self‐Repair
Advanced Science, EarlyView.This study shows that kinesin‐driven buckling induces extensive microtubule lattice damage that often exceeds intrinsic self‐repair and leads to filament failure. While curvature, motor motility, and force individually cause limited damage, their combination overwhelms repair.
Shweta Nandakumar +9 more
wiley +1 more source
Preliminary report on in-flight measurement of rotor hub drag and lift using the RSRA [PDF]
The Rotor Systems Research Aircraft (RSRA) is a compound helicopter that was test flown as a fixed wing aircraft, with the main rotor blades removed and the rotor hub installed.
Acree, C. W., Jr.
core +1 more source
Advanced Science, EarlyView.Repeated disuse imprints a molecular memory in skeletal muscle, conferring transcriptional resilience in young adults but exaggerated susceptibility in aged muscle, driven by epigenetic regulation of aerobic metabolism, mitochondrial and NAD+ pathways.
Daniel C. Turner +14 more
wiley +1 more source
Smart Optogenetics for Real‐Time Automated Control of Cardiac Electrical Activity
Advanced Science, EarlyView.We are able to stop dangerous heart‐rhythm spirals before they fully form. Within about 100 ms, it pinpoints the spiral's tiny central tip (≈0.9 mm) using light‐based sensing and machine learning, then shines targeted light to shut it down. This fast, precise, closed‐loop approach detects, targets, and terminates arrhythmias in real time.
Shanliang Deng +15 more
wiley +1 more source
Vibration Model on Main Shaft Rotor of Vane Compressor for Automotive Air Conditioning
Zhileng xuebao, 2013 The main shaft rotor is the core component of the vane compressor in automotive air conditioning, and its natural frequency and mode shape have direct impacts on the motion stability of the compressor.
Li Chunyin, Wang Shulin
doaj
Helicopter far-field acoustic levels as a function of reduced main-rotor advancing blade-tip Mach number [PDF]
During the design of a helicopter, the weight, engine, rotor speed, and rotor geometry are given significant attention when considering the specific operations for which the helicopter will be used. However, the noise radiated from the helicopter and its
Lemasurier, Philip +2 more
core +1 more source
Advanced Science, EarlyView.A phosphorescent dye was designed to fit in a hand‐to‐glove fashion into the 1D‐pore channels of MIL‐68(In). We synthesized MIL‐68(In) as powder and thin films, loaded the dye into the pores with controlled packing, and found that the phosphorescence and quantum yield are enhanced.
Bahram Hosseini Monjezi +12 more
wiley +1 more source
Extended Fused Carbazole‐BODIPY, High Brightness NIR Organic Dyes
Angewandte Chemie, EarlyView.Highly fused boron‐dipyrromethene (BODIPY) with a strong donor group has been synthesized, and their photophysical behaviors fully characterized. They exhibit outstanding brightness for fluorophores emitting in the NIR region. Water‐soluble nanoparticles filled with one of these dyes demonstrate high efficiency as the NIR II visualization agent ...
Fabien Ceugniet +9 more
wiley +2 more sources