Results 81 to 90 of about 589,600 (262)
Determination of the Critical Speed of a Cracked Shaft from Experimental Data. [PDF]
Sensors (Basel), 2022 Muñoz-Abella B +3 more
europepmc +1 more source
Critical Speed of Rotor in a Liquid
Bulletin of JSME, 1981 Analytical results on the fundamental critical speed of a shaft in a viscous fluid are presented. When the fluid is set in motion by the shaft whirling, dynamic forces imposed by the fluid on the shaft are obtained by solving the two-dimensional Navier -Stokes equations under appropriate boundary conditions and on the assumption of small amplitude of ...
SHIMOGO, Taro, KAZAO, Yukihiko
openaire +3 more sources
From mice to humans—divergent strategies for intestinal homeostasis and regeneration
FEBS Letters, EarlyView.Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa +2 more
wiley +1 more source
Analysis of the impact of rotor speed variations on the vibration of centrifugal compressor units
You-qi chuyunObjectiveThe rotor speed of operating centrifugal compressor units needs to be regulated according to working conditions and output requirements. Within the operational speed range, the rotors typically experience fluctuating vibrations in response to ...
Dongzhuo JIA +5 more
doaj +1 more source
Machines, 2019 In this paper, the critical speeds of a rotating shaft fitted with eccentric balance sleeves are identified from a scaled, high speed experimental test facility. The results are compared with the results of dynamic finite element simulations. It is shown
Antony Kirk, Jonathan Griffiths
doaj +1 more source
Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis
FEBS Letters, EarlyView.Hypervirulent KL49 A. baumannii's capsular polysaccharide contains the nonulosonic acid 8‐epi‐Leg5,7Ac2, synthesized by epimerization via ElaA, ElaB, and ElaC. Crystal structures of ElaA, ElaB, and ElaC reveal their role in CMP‐Leg5,7Ac2 synthesis and regioselective C8 epimerization.
Woo Cheol Lee +7 more
wiley +1 more source
Modeling the expenditure and reconstitution of distance above critical speed during two swimming interval training sessions. [PDF]
Front Physiol, 2022 Raimundo JAG +4 more
europepmc +1 more source
FEBS Letters, EarlyView.Inositol pyrophosphates are energy‐rich signaling molecules that perform critical functions in cells. Three different families of phosphatases hydrolyze the β phosphate of the inositol pyrophosphate molecules: two have narrow specificities and one is promiscuous.
Ronda J. Rolfes
wiley +1 more source
Dynamic Analysis of Traction Forces in a Two-Rope System: Influence of Loading Rate and Inertia
Fiabilitate şi DurabilitateThis paper examines the physical behavior of a system subjected to slow and sudden traction using an experimental device consisting of a suspended mass connected by two identical ropes.
Răzvan Bogdan ITU +2 more
doaj +1 more source
Modelling stem cell differentiation related processes—A practical overview for biologists
FEBS Letters, EarlyView.Stem cell differentiation is complex and difficult to control experimentally. This review introduces suitable computational modelling approaches that can support stem cell research, from mechanistic ODE and abstract models to multiscale and deep learning methods.
Ricco Zeegelaar +4 more
wiley +1 more source