Results 51 to 60 of about 2,665,933 (332)

Nonzero Mean Squared Momentum of Quarks in the Non-Perturbative QCD Vacuum

open access: yes, 2010
The non-local vacuum condensates of QCD describe the distributions of quarks and gluons in the non-perturbative QCD vacuum. Physically, this means that vacuum quarks and gluons have nonzero mean-squared momentum, called virtuality. In this paper we study
Kisslinger, Leonard S.   +2 more
core   +1 more source

Investigating steam penetration using thermometric methods in dental handpieces with narrow internal lumens during sterilizing processes with non-vacuum or vacuum processes [PDF]

open access: yes, 2017
Background: Dental handpieces are required to be sterilized between patient use. Vacuum steam sterilization processes with fractionated pre/post-vacuum phases or unique cycles for specified medical devices, are required for hollow instruments with ...
Kirk, B.   +4 more
core   +1 more source

Vacuum Instability

open access: yesFoundations of Physics Letters, 2006
Following fresh attempts to resolve the problem of the energy density of the vacuum, we reconsider the case where the cosmological constant is derived from a higher-dimensional version of general relativity, and interpret the gauge-dependence of $ $ as a dynamical effect. This leads to a relation between the change in $ $ and the line element (action)
openaire   +2 more sources

Microfabrication Technologies for Interaction Circuits of THz Vacuum Electronic Devices

open access: yesMicromachines
Advances in manufacturing technology are allowing for the realization of interaction circuit with microstructures. The capability to produce small circuit structures is allowing new opportunities for vacuum electronic devices producing terahertz (THz ...
Xinghui Li, Jinjun Feng
doaj   +1 more source

Optimization of pumping efficiency and divertor operation in DEMO

open access: yesNuclear Materials and Energy, 2017
In the present work a sensitivity analysis of the pumping performance of a standard divertor design for two extreme dome cases (with and without) and different pumping port locations is performed.
S. Varoutis   +3 more
doaj   +1 more source

Design and Performance Verification of a Space Radiation Detection Sensor Based on Graphene

open access: yesSensors, 2021
In order to verify the performance of a graphene-based space radiation detection sensor, the radiation detection principle based on two-dimensional graphene material was analyzed according to the band structure and electric field effect of graphene.
Heng An   +6 more
doaj   +1 more source

Cell wall target fragment discovery using a low‐cost, minimal fragment library

open access: yesFEBS Letters, EarlyView.
LoCoFrag100 is a fragment library made up of 100 different compounds. Similarity between the fragments is minimized and 10 different fragments are mixed into a single cocktail, which is soaked to protein crystals. These crystals are analysed by X‐ray crystallography, revealing the binding modes of the bound fragment ligands.
Kaizhou Yan   +5 more
wiley   +1 more source

On the Perturbative Stability of Quantum Field Theories in de Sitter Space

open access: yes, 2011
We use a field theoretic generalization of the Wigner-Weisskopf method to study the stability of the Bunch-Davies vacuum state for a massless, conformally coupled interacting test field in de Sitter space.
A Dolgov   +52 more
core   +1 more source

Vacuum State of Lattice Gauge Theory with Fermions in 2+1 Dimensions [PDF]

open access: yes, 1996
We investigate the vacuum state of the lattice gauge theory with fermions in 2+1 dimensions. The vacuum in the Hermite form for the fermion part is obtained; the vacuum in the unitary form has been proposed by Luo and Chen.
Appelquist T. W.   +7 more
core   +3 more sources

Characteristics analysis of compact cesium atomic clock with magnetic state selection

open access: yesFrontiers in Physics, 2022
This paper introduces a compact magnetic state-selection cesium atomic clock called LIP Cs-3000 and analyses its characteristics. The test results reveal that the ranges of the line width, peak-to-valley ratio and signal-to-noise ratio of Ramsey pattern ...
Jiang Chen   +12 more
doaj   +1 more source

Home - About - Disclaimer - Privacy