Results 41 to 50 of about 473,345 (294)

Experimental Investigation and Optimization of Machining Parameters in Turning of Aluminum Alloy 075-T651

open access: yesProduction Engineering Archives, 2021
Aluminum alloy 7075-T651 is a widely used material in the aviation, marine, and automobile sectors. The wide application marks the importance of this material’s research in the manufacturing field.
Srivastava Arpit   +4 more
doaj   +1 more source

Force Characteristics of Centrifugal Pump as Turbine during Start-Up Process under Gas–Liquid Two-Phase Conditions

open access: yesActuators, 2022
The start-up process of a centrifugal pump as turbine (PAT) under gas–liquid two-phase conditions was simulated based on Fluent, and the evolution mechanism of the internal flow field and the variation law of force characteristics were studied in its ...
Baodui Chai, Junhu Yang, Xiaohui Wang
doaj   +1 more source

Geometrical factors influencing muscle force development. II. Radial forces

open access: yesBiophysical Journal, 1980
If the subfragment-2 (S2) portion of the myosin cross-bridge to actin does not lie parallel to the myofilament axes then when a muscle fiber contracts, there will be a radial component to the cross-bridge force. When the subfragment-1 (S1) portion of the cross-bridge attaches to actin with its long axis projecting through the filament axis, the ...
openaire   +2 more sources

Analysis of Unsteady Pressure Fluctuation in a Semi-Open Cutting Pump

open access: yesEnergies, 2020
In order to understand the pressure fluctuation characteristics of a semi-open cutting pump, the three-dimensional unsteady flow fields were calculated. External and internal flow characteristics of four schemes with different relative angles between the
Weidong Cao, Jiayu Mao, Wei Li
doaj   +1 more source

Testing Method of Stent’s Radial Force [PDF]

open access: yes, 2008
In case of coronary arteriosclerosis and heart attack balloon-expandable stents are used. These balloon crimped implants are placed to the occluded vessel part and the balloons are pumped with big pressure (4-20 bar).
Bognár, Eszter   +2 more
core  

2D Simulations of the Line-Driven Instability in Hot-Star Winds: II. Approximations for the 2D Radiation Force

open access: yes, 2005
We present initial attempts to include the multi-dimensional nature of radiation transport in hydrodynamical simulations of the small-scale structure that arises from the line-driven instability in hot-star winds.
Castor   +37 more
core   +1 more source

Time after time – circadian clocks through the lens of oscillator theory

open access: yesFEBS Letters, EarlyView.
Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo   +2 more
wiley   +1 more source

Refinement of Analytical Current Waveform for Acoustic Noise Reduction in Switched Reluctance Motor

open access: yesIEEE Open Journal of Industry Applications
In this article, a refinement algorithm of the current waveform that flattens the radial-force sum in switched reluctance motors is proposed. Flattening the radial-force sum eliminates the multiples of the third radial-force component.
Fares S. El-Faouri   +2 more
doaj   +1 more source

Influence of Different Pole Head Shapes on Motor Performance in Switched Reluctance Motors

open access: yesAdvances in Electrical and Computer Engineering, 2020
The main reasons of the vibrations occurring in the stator of Switched Reluctance Motors (SRM) are the radial forces and they cause acoustic noise. This has an adverse effect on the performance of SRM.
POLAT, M., YILDIZ, A.
doaj   +1 more source

On the Effect of Cavitation on the Radial Forces and Hydrodynamic Stiffness of a Centrifugal Pump [PDF]

open access: yes, 1986
The asymmetric flow within a volute exerts a radial force on a centrifugal impeller. The present paper presents experimental measurements of the radial forces on the impeller in the presence of ...
Acosta, A. J.   +3 more
core   +1 more source

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