Results 51 to 60 of about 1,114,868 (291)

Particle Shape Effect on Macroscopic Behaviour of Underground Structures: Numerical and Experimental Study

open access: yesStudia Geotechnica et Mechanica, 2015
The mechanical performance of underground flexible structures such as buried pipes or culverts made of plastics depend not only on the properties of the structure, but also on the material surrounding it.
Szarf Krzysztof   +2 more
doaj   +1 more source

Molecular Dynamics Simulation of Zener Pinning by Differently Shaped and Oriented Particles

open access: yesFrontiers in Materials, 2021
Zener pinning between a curved Cu grain boundary (GB) and a differently shaped and oriented Ag particle has been simulated via molecular dynamics. The computed magnitudes of the maximum pinning force agreed with theoretical predictions only when the ...
Yi Li   +3 more
doaj   +1 more source

Shape invariant potential formalism for photon-added coherent state construction

open access: yes, 2017
An algebro-operator approach, called shape invariant potential method, of constructing generalized coherent states for photon-added particle system is presented.
A Khare   +33 more
core   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

open access: yesFEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho   +3 more
wiley   +1 more source

Where surface physics and fluid dynamics meet: rupture of an amphiphile layer by fluid flow

open access: yes, 2006
We investigate the fluctuating pattern created by a jet of fluid impingent upon an amphiphile-covered surface. This microscopically thin layer is initially covered with 50 $\mu$m floating particles so that the layer can be visualized.
Frisch U.   +6 more
core   +3 more sources

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

open access: yesFEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe   +3 more
wiley   +1 more source

Enhancing SPH using moving least-squares and radial basis functions

open access: yes, 2007
In this paper we consider two sources of enhancement for the meshfree Lagrangian particle method smoothed particle hydrodynamics (SPH) by improving the accuracy of the particle approximation.
Brownlee, R. A.   +3 more
core   +1 more source

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

open access: yesFEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka   +11 more
wiley   +1 more source

Combining experiment and prediction to explore surface chemistry and dissolution

open access: yesIUCrJ
A crystal structure is often an integral component in the development of a new pharmaceutical product, and these structures are frequently used to understand, assess and often predict both the manufacturing and in vivo behaviour of these compounds ...
Andrew G. P. Maloney
doaj   +1 more source

Numerical determination of the effective moments of non-spherical particles [PDF]

open access: yes, 2006
Dielectric characterisation of polarisable particles, and prediction of the forces and torques exerted upon them, relies on the knowledge of the effective, induced dipole moment. In turn, through the mechanism of depolarisation, the induced dipole moment
Green, Nicolas G, Jones, Thomas B
core   +1 more source

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