Results 81 to 90 of about 1,272,353 (301)

Mean volume reflection angle

open access: yesPhysical Review Accelerators and Beams, 2020
The mean volume reflection angle of a high-energy charged particle passing through a bent crystal is expressed as an integral involving the effective interplanar potential over a single crystal period.
M. V. Bondarenco
doaj   +1 more source

De novo synthesis of short‐chain aldehydes and hydrocarbons secreted by the brown marmorated stink bug Halyomorpha halys

open access: yesFEBS Open Bio, EarlyView.
The brown marmorated stink bug, Halyomorpha halys, mainly secretes 4‐oxo‐(E)‐2‐hexenal, (E)‐2‐decenal, dodecane and tridecane, a mixture representative of that released by many heteropterans. We demonstrated that H. halys can synthesise these secretory components de novo using dietary glucose.
Haruna Fujimori, Koji Noge
wiley   +1 more source

Effective charge of colloidal particles [PDF]

open access: yesThe Journal of Chemical Physics, 2004
A new dynamical definition of the effective colloidal charge, especially suitable for the Monte Carlo and Molecular-dynamics simulations, is proposed. It is shown that for aqueous colloidal suspensions containing monovalent counterions the “dynamical” effective charge agrees perfectly with the “statistical” effective charge calculated using the ...
Alexandre, Diehl, Yan, Levin
openaire   +2 more sources

Dielectric charged drop break-up at sub-Rayleigh limit conditions

open access: yes, 2005
The maximum charge a drop may hold, for an electrically isolated, electrically conducting drop, in vacuum, is defined by the Rayleigh Limit. For spray plumes of electrically charged drops this condition is clearly not met due to the space charge field ...
Shrimpton, J.S.
core   +1 more source

Structural and biochemical insights into the thermostable esterase Ta0887 from Thermoplasma acidophilum

open access: yesFEBS Open Bio, EarlyView.
In this study, a novel esterase from the thermoacidophilic archaeon Thermoplasma acidophilum was biochemically and structurally characterized. Our results demonstrate that Ta0887 is a highly thermostable esterase that preferentially hydrolyzes p‐nitrophenyl hexanoate and possesses an α‐helical cap domain that likely contributes to its substrate ...
Alejandro Delgado‐Rey   +4 more
wiley   +1 more source

Charging, aggregation, and electrostatic dispersion of radioactive and nonradioactive particles in the atmosphere [PDF]

open access: yesAerosol Research
Electrostatic dispersion can significantly impact the microphysical behavior of charged particles and ions until reaching zero space charge. However, although radioactive particles can be strongly charged in air, the influence of electrostatic dispersion
Y.-H. Kim   +3 more
doaj   +1 more source

Challenging the weak cosmic censorship conjecture with charged quantum particles [PDF]

open access: yes, 2011
Motivated by the recent attempts to violate the weak cosmic censorship conjecture for near-extreme black holes, we consider the possibility of overcharging a near-extreme Reissner-Nordstrom black hole by the quantum tunneling of charged particles.
Richartz, Mauricio [UNESP]   +6 more
core   +1 more source

Karl Popper and the Mechanisms of Hydrogen Embrittlement

open access: yesAdvanced Engineering Materials, EarlyView.
Representation of the beginning of loss of ductility rather than embrittlement. Small concentrations of hydrogen in a diffusible form within iron are well‐established to harm the mechanical integrity of steels. There are theories that attempt to explain the pernicious role of hydrogen.
H. K. D. H. Bhadeshia
wiley   +1 more source

QPOs from charged particles around charged black holes in STVG

open access: yesEuropean Physical Journal C: Particles and Fields
This study investigates the dynamics of electrically charged test particles around electrically charged Reissner–Nordström (RN) black holes (BHs) in scalar-tensor-vector gravity (STVG), known as modified gravity (MOG).
Isomiddin Nishonov   +6 more
doaj   +1 more source

Particle dynamics around an electrically charged Kiselev black hole embedded in quintessence

open access: yesNuclear Physics B
We introduce and study a new solution describing a static, spherically symmetric and electrically charged black hole embedded in a charged quintessence fluid, which corresponds to an electric generalization of the Kiselev geometry.
Vitalie Lungu   +2 more
doaj   +1 more source

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