نتایج جستجو برای: flight test

تعداد نتایج: 853444  

Journal: :International Journal of Modelling, Identification and Control 2011

2010
Peter Seiler Andrei Dorobantu Gary Balas

NASA’s Generic Transport Model (GTM) is a remote-controlled, 5.5 percent scale commercial aircraft. An L1 adaptive controller was recently designed and flight tested on the GTM. Oscillations in the elevator command were observed at 1.4 to 2 Hertz during the first flight test in September 2009. In most flight conditions the L1 adaptive controller can be approximated by a linear time-invariant sy...

2015
Jean-Philippe Condomines Murat Bronz Gautier Hattenberger Jean-François Erdelyi

The presented work is focusing on the wind estimation and airframe identification based on real flight experiments as part of the SkyScanner project. The overall objective of this project is to estimate the local wind field in order to study the formation of cumulus-type clouds with a fleet of autonomous mini-UAVs involving many aspects including flight control and energy harvesting. For this p...

Journal: :Journal of educational technology and online learning 2021

International Civil Aviation Organization recognizes English proficiency tests for the aviation personnel. Despite this, no universal test has yet to be developed this purpose. There are only local available on market. Among them is a computer-delivered which administered globally recognized flight company in Turkey. This implemented attendants and important consequences such as suspending flig...

ژورنال: طب کار 2013
امینیان, امید , خزایی, شیما , صادق‌نیت‌حقیقی, خسرو, مومنی, پیام ,

Background: Sleep disorders in pilots due to its impact on the flight safety and the flight staff and passenger’s health are important. This study evaluates the frequency of sleep disorders in pilots by standard questionnaires and comparison with ground staff. Methods: This was a cross–sectional study on flight crew and other workers of private flight airline. The cases were selected randomly....

1997
Ben Wada

The paper reviews the National Aeronautical and Space Administration’s (NASA) research program, flight experiments and flight application related to Adaptive Structures. Emphasis is on results from both experimental and flight hardware test programs that helps validates its theoretical performance. The paper includes the role of Adaptive Structures to meet NASA’s current and future technology a...

2013
Hendrik Weihs

Within research for space vehicles with Reentry capability and hypersonic airplane development in the last decade sounding rocket systems became a major and important test bed. This paper will present an overview of the national development and flight test program SHEFEX (SHARP EDGE FLIGHT EXPERIMENT) of the German Aerospace Center DLR. After 2 successful flight campaigns in 2005 and 2012 DLR i...

Journal: :The Journal of experimental biology 2007
Bret W Tobalske

Power output is a unifying theme for bird flight and considerable progress has been accomplished recently in measuring muscular, metabolic and aerodynamic power in birds. The primary flight muscles of birds, the pectoralis and supracoracoideus, are designed for work and power output, with large stress (force per unit cross-sectional area) and strain (relative length change) per contraction. U-s...

Journal: :Journal of visualized experiments : JoVE 2014
William S Phipps Zhizhong Yin Candice Bae Julia Z Sharpe Andrew M Bishara Emily S Nelson Aaron S Weaver Daniel Brown Terri L McKay DeVon Griffin Eugene Y Chan

Until recently, astronaut blood samples were collected in-flight, transported to earth on the Space Shuttle, and analyzed in terrestrial laboratories. If humans are to travel beyond low Earth orbit, a transition towards space-ready, point-of-care (POC) testing is required. Such testing needs to be comprehensive, easy to perform in a reduced-gravity environment, and unaffected by the stresses of...

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