Results 121 to 130 of about 1,070,708 (345)
Torsional Vibrations in Reciprocating Engine Shafts
, 1925 It is well known that, in the case of reciprocating engines, there are certain critical speeds of running at which the torsional vibrations in the shaft become large in amplitude and introduce an element of danger into the system.
G. R. Goldsbrough
semanticscholar +1 more source
Bioprinted Excitable Tissues with Multistimulation Systems for Promoting Function and Maturation
Advanced NanoBiomed Research, EarlyView.This review provides an overview of stimulation strategies used to enhance the functional maturation of bioprinted excitable tissues. It addresses key limitations in physiological performance of bioprinted excitable tissues, outlines major stimulation modalities—including electrical, mechanical, optical, magnetic, ultrasound, and hybrid—and examines ...
Uijung Yong, Jinseon Park, Jinah Jang
wiley +1 more source
Biological Reviews, EarlyView.ABSTRACT Oropharyngeal food processing exhibits a remarkable diversity among vertebrates, reflecting the evolution of specialised ‘processing centres’ associated with the mandibular, hyoid, and branchial arches. Although studies have detailed various food‐processing strategies and mechanisms across vertebrates, a coherent and comprehensive terminology ...
Daniel Schwarz +6 more
wiley +1 more source
Predictive Control Structure for a Two-Mass Drive System with a Two-Layer Observer
EnergiesThis paper presents the control problem of a drive system with an electric motor and a finitely stiff shaft. In such a system, effective damping of torsional vibrations requires the use of advanced control structures.
Karol Wróbel +2 more
doaj +1 more source
Dynamic analysis of geared rotors by finite elements [PDF]
A finite-element model of a geared rotor system on flexible bearings was developed. The model includes the rotary inertia of shaft elements, the axial loading on shafts, flexibility and damping of bearings, material damping of shafts and the stiffness ...
Houser, Donald R. +3 more
core +1 more source
ChemistryEurope, EarlyView.The linear and nonlinear (chir)optical properties of four oligoamide foldamers with different donor groups are studied by means of time‐dependent density functional theory calculations. It is shown that stronger donors yield larger hyperpolarizabilities due to low‐lying charge–transfer states. The agreement with the experiments concerning the key bands
Komlanvi Sèvi Kaka +5 more
wiley +1 more source
Chemistry – A European Journal, EarlyView.Copper(I) hydride complexes often exhibit diverse aggregation behavior that can profoundly influence their structure and reactivity. In this study we use a combined experimental and computational approach to identify key structural an electronic factors that govern aggregation in PNNP dicopperhydride complexes.
Roel Laurentius Maria Bienenmann +5 more
wiley +1 more source
An improved finite-difference analysis of uncoupled vibrations of tapered cantilever beams [PDF]
An improved finite difference procedure for determining the natural frequencies and mode shapes of tapered cantilever beams undergoing uncoupled vibrations is presented.
Kaza, K. R. V., Subrahmanyam, K. B.
core +1 more source
Fluid-structure interaction on the combustion instability [PDF]
, 2012 The multi-domain problem, the limit cycle behaviour of unstable oscillations in the LIMOUSINE model combustor has been investigated by numerical and experimental studies.
Altunlu, A.C. +5 more
core +1 more source
, 2012 Torsional vibration can be broadly described as the angular vibration of any object as a result of applied torque. It can be defined specifically as the periodic motion corresponding to a shaft, where the shaft is twisted about its axis, alternating from one direction to the other.
openaire +1 more source