Results 21 to 30 of about 4,071,897 (295)

Extreme thermal load generation method for high-temperature structures in atmospheric environment

open access: yesXibei Gongye Daxue Xuebao
For addressing the severe aerodynamic thermal load simulation challenge of hypersonic aircraft in ground tests, an extreme thermal load generation method based graphite for high-temperature structures in atmospheric environment is proposed.
WANG Binwen   +4 more
doaj   +1 more source

Structure design of variable camber wing trailing edge based on multi-block rotating mechanism

open access: yesXibei Gongye Daxue Xuebao, 2023
The variable camber trailing edge enables the aircraft to maintain the best aerodynamic performance throughout the flight envelope, so as to achieve the ultimate goal of reducing aircraft fuel consumption and air pollutant emissions.
SHI Xintong   +4 more
doaj   +1 more source

Relation between cycling exercise capacity, fiber-type composition, and lower extremity muscle strength and muscle endurance.

open access: yes, 2011
Segerström, ÅB, Holmbäck, AM, Hansson, O, Elgzyri, T, Eriksson, K-F, Ringsberg, K, Groop, L, Wollmer, P, and Thorsson, O. Relation between cycling exercise capacity, fiber-type composition, and lower extremity muscle strength and muscle endurance.
Per Wollmer   +26 more
core   +1 more source

Central Nervous System Tumors Among Infants in Canada: A Report From CYP‐C

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Central nervous system (CNS) tumors in infants are rare, pose unique clinical challenges, and lack large‐scale evidence‐based data to guide management. This study seeks to describe CNS tumors in Canadian infants and to compare their outcomes with those of older children.
Samuel Sassine   +17 more
wiley   +1 more source

Homogenization methods and macro-strength of composites [PDF]

open access: yes, 2002
A multi-phase periodic composite subjected to inhomogeneous shrinkage or temperature deformation and prescribed mechanical loads is considered. The asymptotic homogenisation is applied for calculation of homogenized macrostresses. A non-local approximate
Mikhailov, SE   +10 more
core   +1 more source

An Efficient High-Frequency Design Methodology for APU Inlet Mufflers Based on Axial Segmentation and Optimal Frequency Selection

open access: yesAerospace
The International Civil Aviation Organization (ICAO) sets strict limits for aircraft ramp noise, a key source of which is Auxiliary Power Unit (APU) inlet noise.
Dongwen Xue   +4 more
doaj   +1 more source

Social Functioning Within the First Years After Pediatric Brain Tumor Diagnosis and the Relationship With Family Psychosocial Risk

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Survivors of pediatric brain tumors (PBTs) can experience long‐term social difficulties, impacting quality of life. Beyond medical and environmental factors, family psychosocial risk may play a role in social outcomes by shaping the caregiving environment and may provide intervention options.
Renske H. Houben   +4 more
wiley   +1 more source

Upper Body Muscle Strength and Endurance in Relation to Peak Exercise Capacity During Cycling in Healthy Sedentary Male Subjects.

open access: yes, 2011
Segerström, AB, Holmbäck, AM, Elzyri, T, Eriksson, KF, Ringsberg, K, Groop, L, Thorsson, O, and Wollmer, P. Upper body muscle strength and endurance in relation to peak exercise capacity during cycling in healthy sedentary male subjects.
Per Wollmer   +24 more
core   +1 more source

Multi-disciplinary optimization design method and application of BWB fuselage structure based on PRSEUS configuration

open access: yesXibei Gongye Daxue Xuebao
Aiming at the problems such as low structural bearing efficiency, structural weight gain, heavy load and cabin noise caused by high rear backbraced engine in BWB layout, based on novel materials and pultruded rod stitched efficient unitized structure ...
TIAN Rui   +5 more
doaj   +1 more source

Literature Survey of Dry Friction Damper Model and Analysis Method forDepressing Vibration of Rotating Blade

open access: yesHangkong gongcheng jinzhan, 2018
Rotating blades are key components in aircraft engine, the vibration characteristics and vibration reduction technology is rather important for engine performance, structural integrity, and work reliability.
Qin Jie, Yan Qun, Huang Wenchao
doaj   +1 more source

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