Results 21 to 30 of about 6,512,302 (308)

Deconstructed transverse mass variables

open access: yesPhysical Review D, 2015
Traditional searches for R-parity conserving natural supersymmetry (SUSY) require large transverse mass and missing energy cuts to separate the signal from large backgrounds. SUSY models with compressed spectra inherently produce signal events with small amounts of missing energy that are hard to explore.
Ismail, Ahmed   +3 more
openaire   +3 more sources

Monitoring Mass Variations in Iraq Using Time-Variable Gravity Data

open access: yesRemote Sensing, 2022
Iraq is facing a water shortage due to water scarcity and anthropogenic activities. The recent advance in technologies in geophysical methods has made groundwater monitoring possible.
Abdullah Othman   +2 more
doaj   +1 more source

Influence of Thermophysical Features on MHD Squeezed Flow of ‎Dissipative Casson Fluid with Chemical and Radiative Effects [PDF]

open access: yesJournal of Applied and Computational Mechanics, 2021
Theoretical investigation of variable mass diffusivity, thermal conductivity, and viscosity on unsteady squeezed flow of dissipative Casson fluid is presented.
Mojeed Akolade   +2 more
doaj   +1 more source

DARK MATTER WITH VARIABLE MASSES [PDF]

open access: yesInternational Journal of Modern Physics D, 1993
String effective theories contain a dilaton scalar field which couples to gravity, matter and radiation. In general, particle masses will have different dilaton couplings. We can always choose a conformal frame in which baryons have constant masses while (nonbaryonic) dark matter have variable masses, in the context of a scalar-tensor gravity theory ...
openaire   +2 more sources

Hopf Bifurcation and Vibration Control for a Thrust Magnetic Bearing with Variable Load Mass

open access: yesSensors, 2018
In the working process, the load mass of the thrust magnetic bearing has a significant change. If the load mass changes greatly, the original fixed control parameters cannot ensure that the system is in the optimal stable suspension state, and the ...
Lingling Zhang
doaj   +1 more source

Virtual Refrigerant Mass Flow and Power Sensors for Variable-Speed Compressors [PDF]

open access: yes, 2012
The use of variable-speed compressors in heat pumps and air conditioners has increased in recent years in order to improve comfort and energy efficiency.
Kim, Woohyun, Braun, James E.
core   +1 more source

X-Ray Properties of Optically Variable Low-mass AGN Candidates

open access: yesThe Astrophysical Journal, 2023
We present an X-ray analysis of 14 nearby ( z < 0.044) active galactic nuclei (AGNs) in low-mass galaxies ( M _* ≲ 5 × 10 ^9 M _⊙ ) selected based on their optical variability.
Alexander Messick   +3 more
doaj   +1 more source

Mechanistic Study of a Low Frequency Piezoelectric Motor With Natural Frequency Adjustment Method

open access: yesIEEE Access, 2023
A variable frequency piezoelectric motor is studied, which can generate rotational motion under the excitation of variable-mode vibration response units.
Xiaotao Li   +5 more
doaj   +1 more source

Cluster secondary ion mass spectrometry microscope mode mass spectrometry imaging [PDF]

open access: yes, 2013
RATIONALE: Microscope mode imaging for secondary ion mass spectrometry is a technique with the promise of simultaneous high spatial resolution and high-speed imaging of biomolecules from complex surfaces.
Jungmann, JH   +6 more
core   +1 more source

Structural characteristics and variable mass permeability of fall column broken rock mass [PDF]

open access: yesArchives of Civil Engineering
In order to analyze the relationship between the configuration characteristics, variable mass permeability characteristics and the catastrophe mechanism of falling column process, The influence of the permeability was studied by diffraction instrument ...
Jie Suo, Qirong Qin, Zhenhua Li
doaj   +1 more source

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