Results 41 to 50 of about 116,310 (262)

Time‐Resolved Magnetization Switching Dynamics Driven by Orbital Torques

open access: yesAdvanced Functional Materials, EarlyView.
Du et al. reveal nanosecond magnetization switching driven by orbital currents using time‐resolved Hall detection. The measurements separate domain nucleation from domain wall propagation and show that Joule heating strongly assists switching by lowering energy barriers.
Ao Du   +4 more
wiley   +1 more source

A Route to Chaotic Behavior of Single Neuron Exposed to External Electromagnetic Radiation

open access: yesFrontiers in Computational Neuroscience, 2017
Non-linear behaviors of a single neuron described by Fitzhugh-Nagumo (FHN) neuron model, with external electromagnetic radiation considered, is investigated.
Peihua Feng   +3 more
doaj   +1 more source

Shaping Matter with Acoustic Waves: From Particles to Functional Structures

open access: yesAdvanced Functional Materials, EarlyView.
Acoustic‐directed assembly is reviewed as a materials‐oriented strategy for organizing particles, polymers, metals, and biological systems into functional structures. The review distinguishes reversible manipulation from permanent structure formation through medium fixation, particle fixation, and in situ material generation, highlighting routes toward
Avraham Kenigsberg   +5 more
wiley   +1 more source

Spatial resolution and receptive field height of motion sensors in human vision

open access: yes, 2000
We estimated the length of motion-detecting receptive fields in human vision by measuring direction discrimination for three novel stimuli. The motion sequences contained either (i) alternate frames of two differently oriented sinusoidal gratings; (ii ...
Scott-Samuel, NE   +5 more
core   +1 more source

Effect of Contrast and Adaptation on the Perception of the Direction and Speed of Drifting Gratings [PDF]

open access: yes, 1994
Three experiments were conducted to analyse the effect of contrast and adaptation state on the ability of human observers to discriminate the motion of drifting gratings.
Müller, Rolf   +2 more
core   +1 more source

On the Steady State Response of a Cantilever Beam Partially Immersed in a Fluid and Carrying an Intermediate Mass

open access: yesShock and Vibration, 2000
This paper presents a study on the nonlinear steady state response of a slender beam partially immersed in a fluid and carrying an intermediate mass. The model is developed based on the large deformation theory with the constraint of inextensible beam ...
A.A. Al-Qaisia   +2 more
doaj   +1 more source

Residence Time Distribution of an Irregular Octagonal Tank under Hydrodynamic Sloshing Effect

open access: yesChemical Engineering Transactions, 2023
Sloshing is the movement of fluid in a partly filled vessel subjected to external motions. Generally, sloshing is an undesirable motion for the purpose of marine operations as it causes intense forces and instability.
Wei Han Khor   +7 more
doaj   +1 more source

Rapid Fabrication of Self‐Propelled and Steerable Magnetic Microcatheters for Precision Medicine

open access: yesAdvanced Materials, EarlyView.
A rapid Joule heating fabrication method for the production of self‐propelling, adaptive microcatheters, with tunable stiffness and integrated microfluidic channels is presented. Demonstrated through three microrobotic designs, including a steerable guiding catheter, an untethered wave‐crawling TubeBot, and a distal‐end propelled microcatheter, it was ...
Zhi Chen   +5 more
wiley   +1 more source

Effects of non-sinusoidal pitching motion on the propulsion performance of an oscillating foil - Fig 4

open access: yes, 2019
The motion model of the wave glider, (a) Passive oscillating foil (b) Schematic of angles and forces on an oscillating foil (c) non-sinusoidal pitching profile.
Jiazhong Peng (6900506)   +3 more
core   +1 more source

Slow motion of a sphere towards a plane through confined non-Newtonian fluid [PDF]

open access: yes, 2011
The time needed for the contact of two spheres or a sphere with a rigid plane is mainly controlled by the hydrodynamic drainage of the film located in the gap as long as its thickness is out of range of the Van der Waals interactions.
AMBARI, Abdelhak   +3 more
core   +1 more source

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