Results 81 to 90 of about 180,865 (340)

Flutter of a Low-Aspect-Ratio Rectangular Wing [PDF]

open access: yes
A flutter test of a low-aspect-ratio rectangular wing was conducted in the Langley Transonic Dynamics Tunnel (TDT). The model used in this flutter test consisted of a rigid wing mounted to the wind-tunnel wall by a flexible, rectangular beam.
Cole, Stanley R.
core   +1 more source

Risk of Atrial Fibrillation or Flutter Associated with Periodontitis: A Nationwide, Population-Based, Cohort Study

open access: yesPLoS ONE, 2016
Objective To investigate the risk of atrial fibrillation or atrial flutter in patients with periodontitis (PD) in comparison with individuals without PD.
Der-Yuan Chen   +3 more
semanticscholar   +1 more source

Super‐Convergent Meshless Computations for Active Vibration Control of Bi‐Directional Functionally Graded Terfenol‐D Beams with Twisted Geometry

open access: yesAdvanced Theory and Simulations, EarlyView.
This study develops a superconvergent meshless method to analyze and control vibrations in twisted, bidirectional functionally graded Terfenol‐D beams. By optimizing magnetostrictive patch placement, it demonstrates effective vibration suppression under dynamic loads, highlighting the design potential of strategically graded materials in complex ...
Mukund A. Patil   +2 more
wiley   +1 more source

Effects of treadmill exercise versus Flutter® on respiratory flow and sputum properties in adults with cystic fibrosis: a randomised, controlled, cross-over trial

open access: yesBMC Pulmonary Medicine, 2017
BackgroundTreadmill exercise and airway clearance with the Flutter® device have previously been shown to improve mucus clearance mechanisms in people with cystic fibrosis (CF) but have not been compared. It is therefore not known if treadmill exercise is
T. Dwyer   +4 more
semanticscholar   +1 more source

Skullcapflavone II Inhibits SLC1A4‐Mediated L‐Serine Uptake and Promotes Mitochondrial Damage in Gastric Cancer

open access: yesAdvanced Science, EarlyView.
Skullcapflavone II (SkII) significantly alters serine metabolism in gastric cancer cells by directly targeting the L‐serine transporter SLC1A4, thereby inhibiting L‐serine uptake rather than de novo synthesis. This disruption of serine metabolism by SkII leads to increased oxidative stress and consequent mitochondrial damage.
Jing Zhao   +10 more
wiley   +1 more source

Cinobufagin Directly Targets PDE4D to Disrupt Fibroblast–Dendritic Cell Crosstalk in Atopic Dermatitis

open access: yesAdvanced Science, EarlyView.
Single‐cell RNA sequencing revealed that MIF signaling drives inflammatory fibroblastmyeloid cell crosstalk in atopic dermatitis. Cinobufagin, a potent PDE4D inhibitor, suppresses MIF and reduces inflammation by restoring the cAMP/PKA/CREB pathway. Genetic knockout validates PDE4D as a key driver and promising therapeutic target for atopic dermatitis ...
Shicong Li   +14 more
wiley   +1 more source

Minimum mass sizing of a large low-aspect ratio airframe for flutter-free performance [PDF]

open access: yes
A procedure for sizing an airframe for flutter-free performance is demonstrated on a large, flexible supersonic transport aircraft. The procedure is based on using a two level reduced basis or modal technique for reducing the computational cost of ...
Greene, W. H.   +1 more
core   +1 more source

Improvements of Zeyded method for calculating flutter of flat panels [PDF]

open access: yes, 1972
Method for calculating flutter boundaries and estimating stresses in infinite spanwise array of panels is presented. Numerical analyses are included for pinned edge panels, isotropic panel material, zero viscous damping, and no elastic foundation. Design
Yates, J. E.
core   +1 more source

A Serum‐Stable Antimicrobial Peptide‐Based Delivery Platform for Selective Treatment of Nontargetable and Chemoresistant Tumors

open access: yesAdvanced Science, EarlyView.
A modular antimicrobial‐peptide‐based therapeutic system integrating membrane‐targeted selectivity, a conformation‐driven polyethylene glycolylated blocker, and serum‐stabilizing N‐cap is developed. The optimized conjugate 270 shows potent, rapid killing of the desired tumor cells, high serum stability, low off‐target toxicity, and broad applicability,
Tianxing Liu   +12 more
wiley   +1 more source

Multifunction tests of a frequency domain based flutter suppression system [PDF]

open access: yes
The process is described of analysis, design, digital implementation, and subsonic testing of an active control flutter suppression system for a full span, free-to-roll wind tunnel model of an advanced fighter concept.
Adams, William M., Jr.   +1 more
core   +1 more source

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