Results 11 to 20 of about 3,468,054 (198)

Dynamics of a mass variable drum winding a heavy rope

Archives of Mechanics, 2021
The paper focuses on a winch drum winding a heavy rope to present the variety of issues related to the dynamics of systems with rotating parts of time-varying mass.
J. Buśkiewicz
doaj   +1 more source

Optimal mass variables for semivisible jets

SciPost Physics Core, 2023
Strongly coupled hidden sector theories predict collider production of invisible, composite dark matter candidates mixed with standard model hadrons in the form of semivisible jets. Classical mass reconstruction techniques may not be optimal for these unusual topologies, in which the missing transverse momentum comes from massive particles and has a ...
Pedro, Kevin, Shyamsundar, Prasanth
openaire   +3 more sources

Mass-Losing Semiregular Variable Stars in Baade's Windows [PDF]

, 2001
By cross-correlating the results of two recent large-scale surveys, the general properties of a well defined sample of semi-regular variable stars have been determined.
A. B. Tomaney, A. C. Becker, A. J. Drake, A. Omont, A. Robin, Arndt T. U., B. A. Peterson, Bessell M. S., Bessell M. S., C. Alard, C. Alcock, C. Cesarsky, C. Nelson, Cesarsky C. J., D. L. Welch, D. Minniti, D. P. Bennett, D. R. Alves, Fleischer A. J., G. Gilmore, G. Simon, Gail H.-P., Glass I. S., H. Habing, Hoyle F., I. S. Glass, J. A. D. L. Blommaert, J. Th. van Loon, Jura M., K. C. Freeman, K. Griest, K. H. Cook, Kahane C., Kerschbaum F., Kerschbaum F., Lafon J. P.-J., Lloyd Evans T., M. Felli, M. Geha, M. J. Lehner, M. Perault, M. R. Pratt, M. Schultheis, N. Epchtein, Omont A., P. Fouque, P. J. Quinn, P. Popowski, R. A. Allsman, R. Genzel, S. Ganesh, S. L. Marshall, S. Price, T. S. Axelrod, T. Vandehei, van Loon J. Th., W. Sutherland, Whitelock P., Whitelock P. A., Whitelock P. A., Wood P. R., Wood P. R.   +61 more
core   +3 more sources

On Four New Methods of Analytical Calculation of Rocket Trajectories

Aerospace, 2018
The calculation of rocket trajectories is most often performed using purely numerical methods that account for all relevant parameters and provide the required results.
Luís M. B. C. Campos, Paulo J. S. Gil
doaj   +1 more source

The concept of mass-density in classical thermodynamics and the Boltzmann kinetic equation for dilute gases [PDF]

, 2008
In this paper we discuss the mass-density of gas media as represented in kinetic theory. It is argued that conventional representations of this variable in gas kinetic theory contradict a macroscopic field variable and thermodynamic property in classical
Dadzie, S. Kokou, Reese, Jason M.
core   +1 more source

Extended Lagrangian formalism for rheonomic systems with variable mass [PDF]

Theoretical and Applied Mechanics, 2017
In this paper the extended Lagrangian formalism for the rheonomic systems (Dj. Mušicki, 2004), which began with the modification of the mechanics of such systems (V. Vujičić, 1987), is extended to the systems with variable mass, with emphasis on
Mušicki Đorđe
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Influence of Thermophysical Features on MHD Squeezed Flow of ‎Dissipative Casson Fluid with Chemical and Radiative Effects [PDF]

Journal 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, Taofeeq Adeosun, John Olabode   +2 more
doaj   +1 more source

Monitoring Mass Variations in Iraq Using Time-Variable Gravity Data

Remote 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, Ahmed Abdelrady, Ahmed Mohamed   +2 more
doaj   +1 more source

Deconstructed transverse mass variables

Physical 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, Schwienhorst, Reinhard, Virzi, Joseph S., Walker, Devin G. E.   +3 more
openaire   +3 more sources

Analysisof the Vibration Reduction Characteristics of Boring Bar with A Variable Mass Dynamic Vibration Absorber

Journal of Harbin University of Science and Technology, 2018
In the boring process the boring bar in the cantilever state is used，which reduces stiffness of the boring bar. Vibration is easy to be occurred，and the vibration affects the machining precision and surface quality.
LIU Qiang, LIU Xian-li, WU Shi, YANG Lin, LI Rong-yi, YANG Hao   +5 more
doaj   +1 more source