Results 11 to 20 of about 2,282,439 (313)

The mass-to-charge ratio scale

open access: yesJournal of the American Society for Mass Spectrometry, 1994
Increases in the capacity for accurately measuring the mass-to-charge ratio of specific gas-phase ions justify the reconsideration and standard definition of the gas-phase mass-to-charge ratio scale and the clearly denned connection of that scale to condensed phases.
Department of Chemistry, Florida State University, Tallahassee, Florida, USA ( host institution )   +5 more
openaire   +4 more sources

Mass, Capacitary Functions, and the Mass-to-Capacity Ratio

open access: yesPeking Mathematical Journal, 2023
We study connections among the ADM mass, positive harmonic functions tending to zero at infinity, and the capacity of the boundary of asymptotically flat $3$-manifolds with nonnegative scalar curvature. First we give new formulae that detect the ADM mass via harmonic functions.
Miao, Pengzi
openaire   +4 more sources

Effects of Mass and Damping on Flow-Induced Vibration of a Cylinder Interacting with the Wake of Another Cylinder at High Reduced Velocities

open access: yesEnergies, 2021
Flow-induced vibration is a canonical issue in various engineering fields, leading to fatigue or immediate damage to structures. This paper numerically investigates flow-induced vibrations of a cylinder interacting with the wake of another cylinder at a ...
Md. Mahbub Alam
doaj   +1 more source

Research on the ratio of multicomponent emulsion flooding system

open access: yesFrontiers in Energy Research, 2023
In recent years, field test and industrialized application of ASP (alkaline/surfactant/polymer) flooding has been carried out in oilfields, which has obtained an obvious effect on increasing oil and decreasing water and good economic efficiency. However,
Man Zhiqiang, Man Zhiqiang, Wu Wenxiang
doaj   +1 more source

On the quantization of the charge–mass ratio [PDF]

open access: yesGeneral Relativity and Gravitation, 2016
The paper deals with the problem of describing fundamental particles. The Einstein-Rosen approach was revisited to explain que charge-mass ratio quantization. Such a result is obtained once a quantization prescription is applied to the expression of gravitational energy defined in the realm of teleparallel gravity.
openaire   +2 more sources

Stability of the Proton-to-Electron Mass Ratio [PDF]

open access: yesPhysical Review Letters, 2008
We report a limit on the fractional temporal variation of the proton-to-electron mass ratio as, obtained by comparing the frequency of a rovibrational transition in SF6 with the fundamental hyperfine transition in Cs. The SF6 transition was accessed using a CO2 laser to interrogate spatial 2-photon Ramsey fringes.
Shelkovnikov, Alexander   +3 more
openaire   +3 more sources

Universality of the companion mass-ratio distribution [PDF]

open access: yesAstronomy & Astrophysics, 2013
3 pages, 1 figure. Accepted for publication in A&A (research note)
Reggiani, Maddalena, Meyer, M. R.
openaire   +4 more sources

The Application of Isotope Ratio Mass Spectrometry to Forensic Casework

open access: yes, 2023
The purpose of this chapter is to discuss the use of isotope ratio mass spectrometry (IRMS) and isotopic abundances in their application to forensic science and forensic intelligence.
Meikle, J, Jones, K
core   +1 more source

Experimentally Measured Thermal Masses of Adsorption Heat Exchangers

open access: yesEnergies, 2020
The thermal masses of components influence the performance of many adsorption heat pump systems. However, typically when experimental adsorption systems are reported, data on thermal mass are missing or incomplete.
Kyle R. Gluesenkamp   +14 more
doaj   +1 more source

The Effect of Mass Ratio and Damping Coefficient on the Propulsion Performance of the Semi-Active Flapping Foil of the Wave Glider

open access: yesJournal of Marine Science and Engineering, 2020
A numerical investigation on the propulsion performance of the semi-active flapping foil of the wave glider with different mass ratio and damping coefficient is investigated.
Zhanfeng Qi   +4 more
doaj   +1 more source

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