Results 111 to 120 of about 50,187 (303)

Assessment and monitoring of ballistic and maximal upper-body strength qualities in athletes

open access: yes, 2015
Purpose: To evaluate whether the dynamic strength index (DSI: ballistic peak force/isometric peak force) could be effectively used to guide specific training interventions and detect training-induced changes in maximal and ballistic strength.
Haff, G. Gregory   +4 more
core   +1 more source

On the Assembly of Actin Polymerization‐Powered Motors

open access: yesMacromolecular Rapid Communications, EarlyView.
Actin polymerization‐powered motors have the highest speed when the actin recruiting‐polymerizing proteins are immobilized in polymer brushes on their surface. These motors orbit around larger tracer particles at pH above the isoelectric point of ActA but dock onto the tracer particles’ surface at lower pH. ABSTRACT Nano‐ and micromotors are a class of
Miguel A. Ramos Docampo   +2 more
wiley   +1 more source

Advanced Materials for Composite Armour

open access: yes, 2009
PhDComposite integral armour plays an important role in future combat system. Despite numerous experimental studies there are still disadvantages such as complex manufacturing process, relatively big damage area, difficult to repair and limit shape etc.
Zhu, Fuyou
core  

Data‐Driven Insights into Hyperkinetic Disorders in Neurodevelopmental Syndromes and Epileptic Encephalopathies

open access: yesMovement Disorders Clinical Practice, EarlyView.
Abstract Background Childhood‐onset hyperkinetic movement disorders occur in a range of genetic conditions. Recently, there has been an increase in recognition of hyperkinetic movement disorders, mainly dystonia, chorea and dyskinesia, with monogenic conditions associated with neurodevelopmental delay (NDD) and also with developmental and epileptic ...
Hugo Morales‐Briceño   +6 more
wiley   +1 more source

Fractional Moment Theory for Anomalous Transport: A Unified Framework for Lévy Flights, Fractals, and Complex Dynamical Systems

open access: yesMathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT We develop a unified mathematical framework extending classical moment theory from discrete integer orders to a continuous spectrum of real orders f>0$$ f>0 $$, providing a systematic statistical characterization of complex systems exhibiting power‐law behavior.
Farrukh A. Chishtie
wiley   +1 more source

Turbulent pair dispersion in the presence of gravity

open access: yesNew Journal of Physics, 2015
Turbulent pair dispersion of heavy particles is strongly altered when particles of two different Stokes numbers (bidisperse) are considered, and this is further compounded when a uniform gravitational acceleration is present.
Kelken Chang   +2 more
doaj   +1 more source

Ergonomics, design and reliability of body armour [PDF]

open access: yes, 2011
The wearing of body amour has become a necessity for many professions and much work has gone into the optimisation of the mechanics of protection. In the present study a broader view of the effects of ergonomics, design, reliability and protection has
Watson, Celia H.
core  

Effect of Periphery Fixity on Ballistic Limit of Thin Aluminum Plate Subjected to Blunt and Ogival Projectile Impact

open access: yes, 2014
Three-dimensional numerical simulations were carried out with the ABAQUS/explicit finite element code to study the influence of target boundary conditions on its ballistic limit. 1mm thick 1100-H12 aluminum target of 255 mm span diameter was hit by 19 mm
P.K. Gupta, G. Tiwari, M.A. Iqbal
core   +1 more source

Comparative Evaluation of Structure–Processing–Property Relationships in Flax, Hemp, and Cattail Discontinuous fiber Thermoset Composites

open access: yesPolymer Composites, EarlyView.
Needle punching reorients fibers from in‐plane direction toward z‐direction of the web, resulting in mechanical interlocking of fibers and reduction in the nonwoven mat thickness. ABSTRACT Replacement of glass fiber mats, utilized in large and complex composite parts in the transportation industry, with natural fiber mats requires knowledge of natural ...
Md Shadhin   +2 more
wiley   +1 more source

Optimising the success of random destructive searches: Levy walks can outperform ballistic motions

open access: yes, 2009
International audienceWe re-evaluate the long standing and widely held belief that ballistic movements (i.e. straight-lines movements) outperform Lévy walks when searching for targets that once located are not revisited. The belief stems from the results
Reynolds, A.M.   +2 more
core   +1 more source

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