Results 41 to 50 of about 22,506 (203)

Scattering from ‘Babinet’ particles (or not…): spherical particles made up of spheres and spherical particles with spherical voids [PDF]

open access: yesJ Appl Crystallogr
Small‐angle scattering form factors of composite particles built from either embedded spheres or randomly distributed voids within a sphere are obtained by Monte Carlo simulations, and analytical expressions that reproduce the simulations are derived.The small‐angle scattering form factors of two classes of composite particles with contrasting internal
Pedersen J, Møller T, Corredig M.
europepmc   +2 more sources

Violation of Porod law in a freely cooling granular gas in one dimension

open access: yes, 2007
We study a model of freely cooling inelastic granular gas in one dimension, with a restitution coefficient which approaches the elastic limit below a relative velocity scale v.
Dibyendu Das   +3 more
core   +1 more source

The Effect of Amino Acids on the Formation of Amorphous Calcium Carbonate Nanoparticles

open access: yesAdvanced Functional Materials, EarlyView.
Biomineral formation often proceeds via the assembly of amorphous calcium carbonate (ACC) nanoparticles with narrow size distributions. Using in situ SAXS coupled to a stopped‐flow device, we follow synthetic ACC formation with a 10 ms time resolution and show that amino acids narrow the size distribution at low supersaturation, highlighting their key ...
Lucas Kuhrts   +10 more
wiley   +1 more source

Vpliv porodnega položaja pri iztisu ploda na poškodbo presredka

open access: yesObzornik zdravstvene nege
Uvod: Vpliv porodnega položaja na tveganje za poškodbo presredka, ki je odvisen od lokalnih in regionalnih babiških praks, kot so ročna tehnika zaščite presredka, razne stopnje epiziotomije in operativnih porodov itd., še ni zadostno raziskan.
Karmen Kapus   +3 more
doaj   +1 more source

Enhancing $h \to \gamma \gamma$ with staus in SUSY models with extended gauge sector

open access: yes, 2012
We discuss the impact on the stau masses of the additional D-terms in U(1)-extended MSSM models. We show, explicitly for the B-L-SSM, that these contributions can play a crucial role in the explanation of the enhanced diphoton decay rate of a SM-like ...
Basso, Lorenzo, Staub, Florian
core   +1 more source

High Energy Density Asymmetric Aqueous Supercapacitor Based on a 2D Manganese Carbide as a Positive Electrode

open access: yesAdvanced Functional Materials, EarlyView.
A circular route, involving upcycling of waste surgical masks, affords a Mn‐based layered carbide with porosity, redox activity and low work function. These features enable its effective operation as positive supercapacitor electrode in an aqueous asymmetric supercapacitor delivering 213 Wh L−1 energy density.
Debabrata Nandi   +7 more
wiley   +1 more source

Electrocatalytic Reduction of CO2 to Ethylene: Catalyst Design and Synchrotron‐Based Characterizations

open access: yesAdvanced Functional Materials, EarlyView.
This review evaluates strategies for electrochemical CO2 reduction to ethylene, focusing on copper‐based catalyst design and microenvironment modulation to achieve industrial‐grade performance. By leveraging operando synchrotron‐based characterizations, we provide a multiscale understanding of dynamic structural transformations and key reaction ...
Meng Zhang, Zuolong Chen, Yimin A. Wu
wiley   +1 more source

Improving rock classification in terms of explosivity [PDF]

open access: yes, 2019
Purpose. To improve rock classification in terms of explosivity relying upon the detailed analysis of characteristics of rating classifications available in the Russian Federation and in the world. Methods.
Kirsanov, A   +5 more
core   +1 more source

Unravelling the Secret of Sulfur Confinement and High Sulfur Utilization in Hybrid Sulfur‐Carbons

open access: yesAdvanced Materials, EarlyView.
Thermal condensation of inverse vulcanized sulfur‐carbon hybrids enables a bottom‐up sulfur confinement strategy, in which a protective carbon phase is progressively constructed around sulfur species. The resulting carbon nanodomains covalently tether sulfur chains and stabilize radical intermediates. This integrated architecture effectively suppresses
Tim Horner   +9 more
wiley   +1 more source

Polyzwitterionic Organohydrogel and Soft Composite with Tunable Sol–Gel Properties Enabling On‐Demand Functionalization with Colloids

open access: yesAdvanced Science, EarlyView.
Poly[2‐(methacryloyloxy)ethyl]dimethyl‐(3‐sulfopropyl)ammonium hydroxide‐based organohydrogels are formed via nonsolvent‐induced gelation, featuring tunable viscoelasticity. Functional fillers (MXene nanosheets, magnetic NdFeB microparticles) enable electrical, magnetic, and mechanical responsiveness for applications in mechano‐tunable electromagnetic ...
Ziyue Miao   +4 more
wiley   +1 more source

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