Results 31 to 40 of about 49,270 (294)

The effectiveness of dumbbell training on improving overhand serve ability in volleyball: an experimental study on beginner athletes

open access: yesSriwijaya Journal of Sport
Research Background: Beginner volleyball athletes often experience difficulties in performing effective overhead serves, particularly in terms of strength and accuracy.
Mochhammad Imam Bastomi Arga   +3 more
doaj   +1 more source

Vector-based analysis of cortical activity associated with dumbbell exercise using functional near-infrared spectroscopy

open access: yesFrontiers in Sports and Active Living, 2022
The mechanisms via which the brain and muscles work together remain poorly understood. The use of vector-based fNIRS, to propose a new metric and imaging method to understand neural activation during dumbbell-lifting exercises.
Toshinori Kato
doaj   +1 more source

Stochastic Stokes' drift of a flexible dumbbell

open access: yes, 2007
We consider the stochastic Stokes drift of a flexible dumbbell. The dumbbell consists of two isotropic Brownian particles connected by a linear spring with zero natural length, and is advected by a sinusoidal wave. We find an asymptotic approximation for
Bena I   +4 more
core   +4 more sources

Additive Gaussian Process Regression for Predictive Design of High‐Performance, Printable Silicones

open access: yesAdvanced Engineering Materials, EarlyView.
A chemistry‐aware design framework for tuning printable polydimethylsiloxane (PDMS) for vat photopolymerization (VPP) is developed using additive Gaussian process (GP) modeling. Polymer network mechanics informs variable groupings, feasible formulation constraints, and interaction variables.
Roxana Carbonell   +3 more
wiley   +1 more source

Curvature effects on collective excitations in dumbbell-shaped hollow nanotubes

open access: yes, 2009
We investigate surface-curvature induced alteration in the Tomonaga-Luttinger liquid (TLL) states of a one-dimensional (1D) deformed hollow nanotube with a dumbbell-shape.
Aoki   +43 more
core   +1 more source

Enhanced Strength and Corrosion Resistance of Ti‐13Nb‐12Ta‐10Zr‐4Sn Alloy by Aging Treatment

open access: yesAdvanced Engineering Materials, EarlyView.
This work systematically investigates the effect of aging treatment on mechanical properties and corrosion behavior of vacuum arc‐melted Ti‐13Nb‐12Ta‐10Zr‐4Sn alloy. Owing to the increased α″ martensite, strength and corrosion resistance were significantly enhanced by aging treatment.
Yuhua Li   +5 more
wiley   +1 more source

Retropharyngeal chordoma extending to the spinal cord, mimicking a neurogenic tumor: a case report and literature review

open access: yesJournal of International Medical Research, 2021
Chordomas are rare, locally aggressive bone malignancies with poor prognoses. However, those with minimal or no bone involvement are more easily resectable because of their well-delineated margins and thus have better prognoses.
Sun Joo Lee   +8 more
doaj   +1 more source

Diffusion in systems crowded by active force-dipole molecules

open access: yes, 2017
Experimental studies of systems containing active proteins that undergo conformational changes driven by catalytic chemical reactions have shown that the diffusion coefficients of passive tracer particles and active molecules are larger than the ...
Dennison, Matthew   +2 more
core   +1 more source

Local Reconstructions of Silicene Induced by Adatoms [PDF]

open access: yes, 2013
The interaction of silicene with Si, C, H, O, Ti atoms along with H$_2$, H$_2$O and O$_2$ molecules are investigated and the induced functionalities thereof are analyzed using first principles density functional theory.
Ciraci, S., Özçelik, V. Ongun
core   +2 more sources

On‐Surface Indigo‐Based Bimolecular Coordination Networks with Programmable Regular or Vitreous Structure

open access: yesAdvanced Functional Materials, EarlyView.
A previously unreported coordination motif stabilising single Fe atoms by indigo chelation and pyridyl coordination on Au(111) has been revealed. By using planar tritopic pyridyl linkers (TPyB), extended 2D porous networks of indigo3(TPyB)2Fe6 form. These networks can be crystalline or vitreous and offer an environment where individual coordination ...
Hongxiang Xu   +9 more
wiley   +1 more source

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