Results 21 to 30 of about 391,518 (330)

In situ atomic-scale observation of dislocation climb and grain boundary evolution in nanostructured metal

open access: yesNature Communications, 2022
Dislocation climb is crucial to plasticity and creep of materials. Here, the authors report real-time atomic-scale observations of grain boundary dislocation climb in nanostructured Au at room temperature.
Shufen Chu   +9 more
doaj   +1 more source

Climbing aboard [PDF]

open access: yesJournal of General Physiology, 2019
Welcome from new Editor-in ...
openaire   +2 more sources

Disturbed motion of the hypersonic first stage of an aerospace system in climb

open access: yesВестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2019
Disturbed motion of the hypersonic first stage of an aerospace system in climb is analyzed. Deviations of atmospheric density from standard values and deviations of aerodynamic force coefficients from reference values are taken as disturbances ...
V. L. Balakin, M. M. Krikunov
doaj   +1 more source

Analysis of control programs and climb paths of the hypersonic first stage of an aerospace system

open access: yesВестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2019
Control programs and flight paths of the hypersonic first stage of an aerospace system in climb with acceleration to hypersonic velocity are analyzed. Two approaches to determining the control programs and flight paths are identified: the "traditional ...
V. L. Balakin, M. M. Krikunov
doaj   +1 more source

Research on Optimization of Aircraft Climb Trajectory considering Environmental Impact

open access: yesJournal of Advanced Transportation, 2021
Trajectory-based operation is a new technology that will be developed in the next generation of air traffic management. In order to clarify the optimization space of fuel consumption and emission impact on the environment under the specific operation ...
Fangzi Liu   +3 more
doaj   +1 more source

The contribution of optimal turbo fan transport aircraft climb schedule to air company economy

open access: yesTechnological and Economic Development of Economy, 2009
Today airlines are challenging two opposite goals: minimization of flight fuel consumption and minimization of elapsed flight time. A well‐known cost structure and cost generators represent significant pre‐conditions for defining cost optimization ...
Petar Mirosavljević   +2 more
doaj   +1 more source

Breast Implants Decrease Chest Wall Trauma in Low-speed, Unrestrained Motor Vehicle Crash: An Experimental Model

open access: yesPlastic and Reconstructive Surgery, Global Open, 2023
Introduction:. Breast implants improve quality of life in patients seeking improved breast aesthetics, and are known to minimize human injury in the less common scenario of penetrating trauma.
Christopher J. Pannucci, MD, MS   +3 more
doaj   +1 more source

Disturbed motion of a hypersonic vehicle in climb

open access: yesВестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2019
Disturbed motion of a hypersonic vehicle in climb is analyzed. Deviations of atmospheric density from standard values and deviations of aerodynamic force coefficients from nominal values are taken as disturbances. Disturbed motion of a hypersonic vehicle
V. L. Balakin, M. M. Krikunov
doaj   +1 more source

Analysis of control programs and flight paths of a hypersonic vehicle in climb

open access: yesВестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2018
Control programs and flight paths of a hypersonic vehicle in climb are analyzed. Two approaches to solving the task of determining the control programs and flight paths are identified: the traditional approach and the optimization one.
V. L. Balakin, M. M. Krikunov
doaj   +1 more source

Analyzing the Effect of Dynamic Pressure Drop on Corona Discharges for Aircraft Applications

open access: yesAerospace, 2023
The combination of the low-pressure environment found in aircraft systems and the gradual electrification of aircraft increases the risk of electrical discharges occurrence.
Pau Bas-Calopa   +2 more
doaj   +1 more source

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