Results 21 to 30 of about 23,020 (304)
Noncircular chainrings and pedal to crank interface in cycling: a literature review.
Revista Brasileira de Cineantropometria e Desempenho Humano, 2012 Noncircular chainrings and novel pedal to crank interfaces have been designed to optimize variables related to cycling performance (e.g. peak crank torque and efficiency), with conflicting results in terms of performance.
Rodrigo Rico Bini, Frederico Dagnese
doaj +1 more source
Advanced Engineering Materials, EarlyView.This study demonstrates how optimizing laser power, scanning speed, and hatching distance in laser powder bed fusion can boost the productivity of Inconel 718 manufacturing by up to 29% while maintaining mechanical integrity. The work delivers a validated process window and cost–time analysis, offering industry‐ready guidelines for efficient additive ...
Amir Behjat +7 more
wiley +1 more source
The impact of minor crank length adjustments on lower body cycling kinematics [PDF]
This study examined the effect of minor crank length adjustments on lower body cycling kinematics and exercise tolerance. Fourteen amateur cyclists performed sub-maximal cycling trials with five different crank lengths, preferred (165.0–172.5 mm), ±5 and
Reynolds, S. +3 more
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Advanced Engineering Materials, EarlyView.The temperature dependence of fatigue behavior in nickel‐based superalloys is investigated through high‐resolution measurements of plastic localization. While increasing temperature reduces localization and enhances fatigue performance in René 88DT, Inconel 718 exhibits a sharp degradation at intermediate temperature due to intensified slip ...
M. Calvat +5 more
wiley +1 more source
Kinematic analysis and synthesis of the lever mechanism of crank press stamping
Вестник КазНУ. Серия математика, механика, информатика, 2020 Expanding technical and technological capabilities of forging and stamping machines and equipment can be carried out by introducing new designs of actuators with wide functionality. These features are provided by the crank lever mechanisms of the press.
A. K. Tuleshov +2 more
doaj
Diversity, 2015 The loss of global biological diversity continues despite on-going conservation efforts. Agriculture is the major terrestrial land use in Europe and any conservation efforts to protect biological diversity must address sustainable use of these food ...
Daire Ó hUallacháin +3 more
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Inventiones Mathematicae, 1990 Cranks are defined for partitions which combinatorially prove Ramanujan's congruences for the partition function modulo 5, 7, 11 and 25. Explicit bijections are given for the equinumerous crank classes. The key ingredients for proofs are two bijections for partitions and \(t\)-cores.
GARVAN, F +2 more
openaire +2 more sources
Advanced Engineering Materials, EarlyView.Coarse‐grained (left) and atomistic (right) models of the shape memory polymer ESTANE ETE 75DT3 are shown schematically. The two representations bridge molecular detail and mesoscopic description. Both models capture shape memory behavior, linking segmental mobility and conformational relaxation of anisotropic chains to macroscopic recovery, and ...
Fathollah Varnik
wiley +1 more source
Advanced Engineering Materials, EarlyView.A distinct semi‐confined inner‐tube chemical vapor deposition geometry enables reproducible, large‐area growth of phase‐pure 2D β′‐In2Se3 from InI + Se precursors. Engineering local vapor transport and optimizing precursor delivery and temperature–time conditions yield uniform continuous films.
Dasun P. W. Guruge +8 more
wiley +1 more source
Effect of the Rotor crank system on cycling performance [PDF]
, 2009 The aim of this study was to evaluate the impact of a novel crank system on laboratory time-trial cycling performance. The Rotor system makes each pedal independent from the other so that the cranks are no longer fixed at 180 degrees.
Coleman, Damian A +7 more
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