Results 71 to 80 of about 1,482,446 (314)

Comparison of radial flow effects on partitions of multifragmenting sources formed in symmetric and asymmetric central collisions

open access: yesEPJ Web of Conferences, 2015
The role of collective radial expansion in determining multifragmentation partition properties has previously been explored by comparing different-sized sources of the same excitation energy per nucleon formed by very different reaction mechanisms ...
Frankland J.D.   +3 more
doaj   +1 more source

Helical antenna for exciting azimuthally asymmetric Alfvén waves [PDF]

open access: yesJournal of Applied Physics, 1975
A new coupler for exciting azimuthally asymmetric Alfvén waves has been experimentally investigated. The coupler, which consists of four symmetrical helical straps wound around the vacuum vessel, is driven by a four-phase rf source. Waves excited by the coupler vary azimuthally as exp(jmϑ), where m can be chosen to be either +1 or −1.
S. O. Knox   +2 more
openaire   +1 more source

Polarization‐resolved femtosecond Vis/IR spectroscopy tailored for resolving weak signals in biological samples using minimal sample volume

open access: yesFEBS Open Bio, EarlyView.
Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley   +1 more source

Parametric Interaction-Induced Asymmetric Behaviors in a Coupled-Cavities Quantum Electrodynamics System

open access: yesPhotonics
We investigate a quantum electrodynamics system consisting of two coupled single-mode cavities. The left cavity couples with a two-level atom, while the right cavity incorporates a second-order nonlinear medium, activated by a pumping field.
Xu Ma   +3 more
doaj   +1 more source

Effect of Soil Structure Interaction on Torsional Response of Structure Supported by Asymmetric Soil Foundation System

open access: yesShock and Vibration, 2016
The torsional response of a structure supported by asymmetric foundation was investigated in this study. Several types of the asymmetric soil foundation system were employed to analyze the effect of soil structure interaction on torsional response of the
Fangyuan Zhou   +2 more
doaj   +1 more source

Molecular single-particle excitations in heavy-ion reactions involving deformed light nuclei [PDF]

open access: yes, 2006
Two-center level diagrams for the neutron orbitals in the scattering of 16O on 25Mg and of 17O on 24Mg are calculated by using a deformed potential for 24,25Mg. Possible consequences of the nuclear Landau-Zener mechanism, namely the promotion of nucleons
Greiner, Walter   +2 more
core  

Facilitated spin models in one dimension: a real-space renormalization group study

open access: yes, 2004
We use a real-space renormalization group (RSRG) to study the low temperature dynamics of kinetically constrained Ising chains (KCICs). We consider the cases of the Fredrickson-Andersen (FA) model, the East model, and the partially asymmetric KCIC.
A. Crisanti   +5 more
core   +1 more source

A comparison of two configurations for a dual-resonance cymbal transducer [PDF]

open access: yes, 2018
The ability to design tuned ultrasonic devices that can be operated in the same mode at two different frequencies has the potential to benefit a range of applications, such as surgical cutting procedures where the penetration through soft then hard ...
Feeney, Andrew, Lucas, Margaret
core   +1 more source

Prediction Model for Etiologic Differentiation of Isolated Vestibular Syndrome in Emergency Settings

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective This study aimed to develop and validate a predictive model for differentiating central from peripheral etiologies in patients with isolated vestibular syndrome (VS). Methods In this multicenter retrospective cohort study, 506 patients with isolated VS from five hospitals were divided into derivation (n = 301) and validation (n = 205)
Guo Wenting   +12 more
wiley   +1 more source

Using Floquet Theory in the Procedure for Investigation of the Motion Stability of a Rotor System Exhibiting Parametric and Self-Excited Vibration

open access: yesJournal of Mechanical Engineering, 2019
The computational procedure for investigation vibration stability of a flexible rotor consisting of an asymmetric shaft, one disc, and supported by ball bearings is developed in this work. Lagrange equations of the second kind were used for derivation of
Ferfecki Petr   +2 more
doaj   +1 more source

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