Results 151 to 160 of about 520,824 (258)

The evolution of China's youth sport policies-a systematic analysis based on national policy texts 2013-2023. [PDF]

Front Sports Act Living
Shi P, Bairner A.
europepmc   +1 more source

Pyramidal Structures on Yttria‐Stabilized Zirconia after High Temperature Exposure at 1500°C: New Features on an Old Material

Advanced Engineering Materials, EarlyView.
New features on yttria‐stabilized zirconia after exposure at 1500°C: Newly discovered pyramidal structures on an old material. After exposure at 1550°C on the cross section of YSZ new features, namely pyramidal structures are discovered. These structures grow with time, increase in numbers, appear as singularities, are often arranged in strings, and ...
Doris Sebold, Dylan Jennings, Robert Vaßen   +2 more
wiley   +1 more source

Between Aesthetics and Health: Disordered Eating, Exercise Addiction, and Body Image in Competitive Bodybuilders. [PDF]

J Funct Morphol Kinesiol
Moro F, Cruccolini I, Mauro M, Rinaldo N, Gualdi-Russo E, Zaccagni L, Toselli S.   +6 more
europepmc   +1 more source

Additive Manufacturing of Continuous Fibre Reinforced Composites: Process, Characterisation, Modelling, and Sustainability

Advanced Engineering Materials, EarlyView.
Additive manufacturing provides precise control over the placement of continuous fibres within polymer matrices, enabling customised mechanical performance in composite components. This article explores processing strategies, mechanical testing, and modelling approaches for additive manufactured continuous fibre‐reinforced composites.
Cherian Thomas, Amir Hosein Sakhaei
wiley   +1 more source

Multiscale Investigation of CO₂/Oil Competitive Adsorption and Interfacial Evolution in Shale Reservoirs. [PDF]

ACS Omega
Jiang L, Xu W, Zhu Q, Meng F, Zhou J, Wang H, Tian L.   +6 more
europepmc   +1 more source

Karl Popper and the Mechanisms of Hydrogen Embrittlement

Advanced Engineering Materials, EarlyView.
Representation of the beginning of loss of ductility rather than embrittlement. Small concentrations of hydrogen in a diffusible form within iron are well‐established to harm the mechanical integrity of steels. There are theories that attempt to explain the pernicious role of hydrogen.
H. K. D. H. Bhadeshia
wiley   +1 more source

Understanding the Stochastic Nature of Process Parameter Development of Blown Powder Laser Beam Directed Energy Deposition Additive Manufacturing of Pure Molybdenum

Advanced Engineering Materials, EarlyView.
Identified through the use of statistical design of experiments and metallographic investigation, this study exposes the stochastic origins of intergranular cracks in blown powder laser beam directed energy deposition additive manufacturing of pure molybdenum. It further demonstrates a successful crack mitigation approach with direct correlation to the
Nathaniel J. Lies, Daniel E. Driemeyer, Aaron P. Stebner   +2 more
wiley   +1 more source

Competitive suppression and release in artemisinin-resistant <i>Plasmodium falciparum</i> field isolates. [PDF]

Evol Med Public Health
Brenneman KV, Qahash T, Beckman KA, Nosten FH, Ferdig MT.   +4 more
europepmc   +1 more source

Symbolic Regression and Multi‐Objective Optimization of the Flory–Huggins Interaction Parameter for Hydrogels

Advanced Engineering Materials, EarlyView.
We develop a data‐driven method to derive the mathematical expressions of the Flory–Huggins interaction parameter χ for the swelling behavior of temperature–responsive hydrogels. Starting from initial assumptions of χ, our workflow combines Bayesian optimization, Flory–Rehner theory, and symbolic regression to generate candidate χ expressions.
Yawen Wang, Adrian Ehrenhofer, Thomas Wallmersperger   +2 more
wiley   +1 more source

The mediating role of basic psychological needs satisfaction in the link between parental expectations and competitive state anxiety among adolescent tennis players. [PDF]

Front Psychol
Zhang Z, Chen Z, Peng L.
europepmc   +1 more source