Results 51 to 60 of about 365,625 (308)

Wind-tunnel investigation of the tail-spoiler concept for stall-prevention on general aviation airplanes [PDF]

open access: yes
The longitudinal aerodynamic characteristics of a full scale, single engine general aviation airplane equipped with an angle of attack limiting concept which used a tail mounted spoiler for stall prevention were investigated.
Satran, D. R.
core   +1 more source

Hip Morphology–Based Osteoarthritis Risk Prediction Models: Development and External Validation Using Individual Participant Data From the World COACH Consortium

open access: yesArthritis Care &Research, EarlyView.
Objective This study aims to develop hip morphology‐based radiographic hip osteoarthritis (RHOA) risk prediction models and investigates the added predictive value of hip morphology measurements and the generalizability to different populations. Methods We combined data from nine prospective cohort studies participating in the Worldwide Collaboration ...
Myrthe A. van den Berg   +26 more
wiley   +1 more source

Catapult take off control based on model predictive control

open access: yesHangkong gongcheng jinzhan
After separating from the catapult and leaving the flight deck,carrier-based aircraft face multiple constraints including sink rate,angle of attack,and pitch rate to ensure flight safety and quality. Traditional angle-of-attack protection control methods
QIAN Guohong   +4 more
doaj   +1 more source

Correlation of forebody pressures and aircraft yawing moments on the X-29A aircraft at high angles of attack [PDF]

open access: yes
In-flight pressure distributions at four fuselage stations on the forebody of the X-29A aircraft have been reported at angles of attack from 15 to 66 deg and at Mach numbers from 0.22 to 0.60.
Fisher, David F.   +2 more
core   +1 more source

Studi Eksperimen Pengaruh Sudut Serang Terhadap Performa Turbin Angin Sumbu Horisontal NACA 4415 [PDF]

open access: yes, 2015
The aim of this study was to determine effect the angle of attack on the resulting performance of horizontal axis wind turbines with airfoil blade design a variation of type naca 4415 used the angle of attack is the angle of attack 0˚ , 3˚ and 5˚.
, Ir. Subroto, MT   +2 more
core  

Clinical Practice Guideline for Evaluation and Management of Peripheral Nervous System Manifestations in Sjögren's Disease

open access: yesArthritis Care &Research, EarlyView.
Objective Sjögren's disease is an autoimmune disorder that can impact multiple organ systems, including the peripheral nervous system (PNS). PNS manifestations, which can exist concurrently, include mononeuropathies, polyneuropathies, and autonomic nervous system neuropathies.
Anahita Deboo   +88 more
wiley   +1 more source

High Angle of Incidence Implications upon Air Intake Design and Location for Supersonic Cruise Aircraft and Highly Maneuverable Transonic Aircraft [PDF]

open access: yes
Computational results which show the effects of angle of attack on supersonic mixed compression inlet performance at four different locations about a hypothetical forebody were obtained.
Presley, L. S.
core   +1 more source

On the galloping instability of two-dimensional bodies having elliptical cross sections. [PDF]

open access: yes, 2010
Galloping, also known as Den Hartog instability, is the large amplitude, low frequency oscillation of a structure in the direction transverse to the mean wind direction.
A. Sanz-Andrés   +17 more
core   +2 more sources

Risk of Retinopathy Associated with Long‐Term Use of Hydroxychloroquine in Patients with Rheumatic Diseases: A Systematic Review and Meta‐Analysis

open access: yesArthritis Care &Research, Accepted Article.
Objective We aimed to estimate the prevalence and cumulative incidence of hydroxychloroquine retinopathy (HCQ‐R) and its risk factors among long‐term HCQ users with rheumatic diseases through a systematic review and meta‐analysis of observational studies that used spectral‐domain OCT (SD‐OCT) for screening. Methods A systematic search of PubMed, Scopus,
Narsis Daftarian   +4 more
wiley   +1 more source

Numerical Investigation of Aerodynamic Interactions between Rigid Sails Attached to Ship

open access: yesJournal of Marine Science and Engineering
As part of the strategy to achieve net-zero Greenhouse Gas (GHG) emissions in international maritime shipping, there is ongoing exploration into the use of wind propulsion systems as auxiliary ship propulsion devices. When considering a rigid sail as the
Akane Yasuda   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy