Results 21 to 30 of about 6,770,883 (257)

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

Sensors, 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

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

The 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, Vivienne Baldassare, Marla Geha, Jenny Greene   +3 more
doaj   +1 more source

Supplemental Material - A novel tuned mass-conical spring system for passive vibration control of a variable mass structure

, 2021
Supplemental Material for A novel tuned mass-conical spring system for passive vibration control of a variable mass structure by Sanjukta Chakraborty, Aparna (Dey) Ghosh and Samit Ray-Chaudhuri in Journal of Vibration and ...
Sanjukta Chakraborty (49924), Samit Ray-Chaudhuri (10336964), Aparna (Dey) Ghosh (10336961)   +2 more
core   +1 more source

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

NPD-SCM alignment in mass customization

, 2022
S.69-85This chapter aims to develop a new product development supply chain management alignment framework for mass customization. A case study conducted in industry motivates this framework.
Sianesi, Andrea, Pero, Margherita, Abdelkafi, Nizar, Blecker, Thorsten   +3 more
core   +1 more source

Angular momentum of free variable mass systems is partially conserved [PDF]

, 2018
Variable mass systems are a classic example of open systems in classical mechanics with rockets being a standard practical example. Due to the changing mass, the angular momentum of these systems is not generally conserved. Here, we show that the angular
Eke, Fidelis O., Eke, FO, Angadh Nanjangud, Fidelis O. Eke, Nanjangud, Angadh, Nanjangud, A   +5 more
core   +1 more source

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

, 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

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

IEEE 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, Shengjiang Wang, Xiangyou Peng, Guan Xu, Jingshi Dong, Fengjun Tian   +5 more
doaj   +1 more source

Center of mass of a system of variable mass particles

Revista Brasileira de Ensino de Física
We study the dynamics of the center of mass (CM) of a set of particles when the number of particles in the system varies during a short interval of time, or when the value of the mass of one of the particles depends on time.
M.T. Thomaz, E.V. Corrêa Silva
doaj   +1 more source

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

Archives 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