Results 161 to 170 of about 200,929 (394)

Relationship between physical fitness and executive function in preschool children: a cross-sectional study

BMC Sports Science, Medicine and Rehabilitation
Background Physical fitness (PF) is important for children's physical and cognitive development. There is increasing interest in the relationship between physical fitness, and executive function.
Zhaowen Zhou, Yiping Chen, Ke Huang, Feng Zeng, Zhenwen Liang, Nan Wang, Zhuoming Chen, Cheng Deng   +7 more
doaj   +1 more source

Electrical Transport of Nb‐Doped MoS2 Homojunction P–N Diode: Investigating NDR and Avalanche Effect

Small, EarlyView.
Niobium (Nb)‐doped molybdenum disulfide (MoS2) p‐type–n‐type (p–n) homojunction diodes are engineered using thickness‐controlled homo‐interfaces. Current–voltage (I–V) characteristics reveal gate‐tunable rectification, wavelength‐dependent photoresponse, and low‐bias switching.
Ehsan Elahi, Umer Ahsan, Muhammad Farooq Khan, Jamal Aziz, Payal Chauhan, Paweł Piotr Michałowski, Yuan Chen, Goki Eda, Martin Loula, Kalyan Jyoti Sarkar, Zdenek Sofer   +10 more
wiley   +1 more source

Electric welding torch Patent [PDF]

, 1969
Development of electric weeding torch with casing on one end to form inert gas ...
Allen, G. V.
core   +1 more source

Electrospun PAN Membrane Loaded with AgInP2Se6 Nanosheets for Triboelectric Energy Harvesting

Small, EarlyView.
Exfoliated AgInP2Se6 nanosheets are incorporated into a polyacrylonitrile (PAN) polymer matrix by electrospinning and applied for the first time in a triboelectric nanogenerator (TENG). The hybrid membrane delivers strong electrical output and exhibits reversible humidity sensitivity, responding rapidly to changes in relative humidity.
Filipa M. Oliveira, Jiri Sturala, Bing Wu, Latifah Alrabie, Vojtěch Kundrát, Jakub Zalesak, Ana I. S. Neves, Monica F. Craciun, Rui Gusmão, Zdeněk Sofer, Evgeniya Kovalska   +10 more
wiley   +1 more source

Apparatus for welding torch angle and seam tracking control Patent [PDF]

, 1969
Computer controlled apparatus for maintaining welding torch angle and velocity during seam ...
Wall, W. A., Jr., Yost, V. H.
core   +1 more source

On the space-charge boundary layer inside the nozzle of a cutting torch [PDF]

, 2009
Leandro Prevosto, H. Kelly, B. Mancinelli   +2 more
openalex   +1 more source

A Causal Relationship Between Boron Seeds and the Selectivity and Growth Mode of Boron Nitride Nanotubes in Inductively‐Coupled Plasma

Small, EarlyView.
Boron seed formation governs BNNT selectivity in an inductively‐coupled plasma system. Local thermodynamics and flow conditions control the abundance and the size of these seeds. BNNT selectivity scales with seed abundance, while the nanotube diameters remain largely unaffected despite seed size changes.
Aqeel. Alrebh, Liliana Gaburici, Dean Ruth, Mark Plunkett, Christopher T. Kingston, Keun Su Kim   +5 more
wiley   +1 more source

Advancing Single‐Walled Carbon Nanotubes toward Next‐Generation Electronic Materials: The Critical Roles of Purity and Processability

Small Methods, EarlyView.
Single‐walled carbon nanotubes (SWNTs) are promising for a wide range of applications. In particular, their exceptional electrical conductivity positions them as potential alternatives to traditional metal conductors. This review identifies the key mechanisms governing their conductivity within composites and proposes practical pathways for translating
Xiao Yu, Alex Adronov
wiley   +1 more source

Epidemiology and Treatment of Olecranon Fractures: a nationwide register-based analysis of 27,880 cases in Denmark from 1999 to 2018

Journal of Orthopaedic Surgery and Research
Background Olecranon fractures (OFs) account for approximately 20% of proximal forearm fractures. Displaced or unstable OFs are typically treated surgically with tension-band wiring (TBW) or plate fixation (PF).
Walid Zeyghami, Dennis Karimi, William M. Hagemann, Per H. Gundtoft, Bjarke Viberg, Tazio Maleitzke   +5 more
doaj   +1 more source

A Comparative Study of Directed Energy Deposition‐Arc and Casting: Enhancing Mechanical and Thermal Properties of Hot‐Work Tool Steels

steel research international, EarlyView.
The study investigates the influence of DED‐Arc/M versus casting on the microstructure and material properties of X40CrMoV5‐1 (AISI H13) hot‐work tool steel. DED‐Arc/M yields finer microstructures, superior mechanical strength, and ductility, but slightly reduced thermal conductivity.
Ulf Ziesing, Aaron Berger, Hendric Schaefer, Sebastian Weber, Jonathan Lentz   +4 more
wiley   +1 more source