Results 11 to 20 of about 1,312,954 (268)
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
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Rotary Motion of Variable Mass Cylinder [PDF]
مجله مدل سازی در مهندسی, 2009 In this paper with the use of theory of variable mass systems and dynamic analysis, rotary motion of variable mass cylinder has been evaluated. Effects of angular rates, the methods of mass reduction and propellant burn, the shape and measurement of ...
سعدالدین +3 more
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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
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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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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 +5 more
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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 +2 more
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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 +2 more
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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 +3 more
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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
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DARK MATTER WITH VARIABLE MASSES [PDF]
International 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 ...
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