Results 71 to 80 of about 171,936 (305)

Pressure‐Assisted Dimensional Transformation of 2D Hydrogenated Borophene into 0D Boron Quantum Dots

open access: yesAdvanced Functional Materials, EarlyView.
Hydrogenated borophene (HB) is transformed into distinct boron nanostructures through a solvent‐free thermal process. Under flowing nitrogen, hydrogen escape promotes reconstruction into B2O3 nanoplatelets, whereas hydrogen‐induced pressure under sealed conditions facilitates fragmentation into boron quantum dots.
Ozden Gunes Yildiz   +11 more
wiley   +1 more source

Western North Pacific Typhoons with Concentric Eyewalls [PDF]

open access: yes, 2009
Mon. Wea. Rev. 137, 3758-3770.This study examines the intensity change and moat dynamics of typhoons with concentric eyewalls using passive microwave data and best track data in the western North Pacific between 1997 and 2006.
Yang, Y.-T.   +3 more
core   +2 more sources

Increased prefrontal activity and reduced motor cortex activity during imagined eccentric compared to concentric muscle actions

open access: yesFrontiers in Human Neuroscience, 2012
In this study we used functional magnetic resonance imaging (fMRI) to examine differences in recruited brain regions during the concentric and the eccentric phase of an imagined maximum resistance training task of the elbow flexors in healthy young ...
CJ eOlsson   +5 more
doaj   +1 more source

Effects of Lift Velocity on Muscle Activation During Leg Extension [PDF]

open access: yes, 2013
It is not known if manipulating velocity within a prescribed resistance training mode will improve muscle activation. Muscle activations of the Rectus Femoris (RF), Vastus Lateralis (VL), Vastus Medialis (VM) and Bicep Femoris (BF) were examined during a
Johnson, Scott   +3 more
core  

Concentric circle.

open access: yes, 2018
Concentric circle.
Meihong Wu (525366)   +2 more
core   +1 more source

Multistage, Self‐Sensing Artificial Muscles With Coordination From Liquid Crystal Elastomer‐Graphene Composite Fibers

open access: yesAdvanced Functional Materials, EarlyView.
Inspired by skeletal muscles’ precision and endurance, CoilLCE integrates a self‐sensing liquid crystal elastomer/graphene artificial muscle with an embedded Joule‐heating copper coil, enabling closed‐loop multistage actuation with programmable intermediate states (strain accuracy of 2%), and antagonistic coordination (32% total strain). These features
Ziyun Zhang   +9 more
wiley   +1 more source

Relationships between force-time curve variables and jump height during countermovement jumps in young elite volleyball players

open access: yesActa Gymnica, 2018
Background: The importance of vertical jumps has been extensively recognised in sports. Furthermore, the main indicator of success in vertical jumps is the attained height, however, there is lack of knowledge on how the eccentric and concentric force ...
Javad Sarvestan   +4 more
doaj   +1 more source

An image based targeting method to guide a tentacle-like curvilinear concentric tube robot

open access: yes, 2014
Concentric tube robot (CTR) comprises several precurved concentric tubes which can rotate and translate independently with respect to each other. Each pre-curved tube of a CTR can be controlled to rotate axially and translate along its axis, which ...
Hongliang Ren   +5 more
core   +1 more source

Embedded Direct Ink Writing of Thermoset and Elastomeric Polymers via Frontal Polymerization

open access: yesAdvanced Functional Materials, EarlyView.
Embedded frontal polymerization direct ink writing (FP‐DIW) combines frontal ring‐opening metathesis polymerization with embedded 3D printing to decouple deposition from curing. A yield‐stress support bath stabilizes low‐viscosity inks, while on‐demand thermal initiation enables controlled front propagation. This approach expands the accessible feature
Mohammad Tanver Hossain   +12 more
wiley   +1 more source

The Coherent Unity of Mark 10: 17-31 [PDF]

open access: yesPharos Journal of Theology
There is a prolonged discussion about the unity and the historicity of Mark 10: 17-31. Some scholars believe it consists of three distinct units. Others propose its unity, yet always with notes. For example, many scholars suggest Mark 10:17–31 a coherent
Ferry Hartono
doaj   +1 more source

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