Results 11 to 20 of about 21,365 (198)
Force Model for Crank Group Mechanism and Analysis of Crank Arrangement
Jixie chuandong, 2019 Crank group mechanism is a planar bar mechanism with over constraint. According to the characteristics of the mechanism， the static equilibrium equations of each motion component in crank group mechanism are established. And dynamic static force analysis
Yansong Liu, Jujiang Cao
doaj +2 more sources
Influence of crank length and crank-axle height on standing arm-crank (grinding) power [PDF]
, 2010 To determine the optimal crank length and crank-axle height for maximum power production during standing arm-cranking (‘grinding’). Nine elite professional America’s Cup grinders (age: 36 ± 2 y; body mass: 104 ± 1 kg; body fat 13 ± 2%) performed eight ...
Vernon Neville (7237595) +3 more
core +6 more sources
Validation of an arm crank ergometer test for use in sedentary adults [PDF]
, 2017 The maximal oxygen uptake (V̇O2peak) test is an approved pre-operative examination tool, in a clinical setting: Both V̇O2peak and anaerobic threshold indicate a patient's physiological tolerance for major surgery and post-operative mortality, with cycle ...
Gumber, Anil +3 more
core +6 more sources
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°.
Hopker, James +4 more
core +4 more sources
Using Crank-Nicolson Numerical Method to solve Heat-Diffusion Problem
Tikrit Journal of Pure Science, 2023 The current study aimed to use the Crank-Nicolson numerical method to solve Heat-Diffusion Problem in comparison with the ADI method. In this paper, the general formula of the Crank-Nicolson Numerical Method was derived and applied to solve the heat ...
Omar Abdullah Ajeel, Awni M. Gaftan
doaj +1 more source
Topology and Response Surface Optimization of a Bicycle Crank Arm with Multiple Load Cases
Applied Sciences, 2020 This paper presents an application of topology optimization and response surface method to optimize the geometry of a bicycle crank arm and the experimental validation of it.
Ahmad Yusuf Ismail +2 more
doaj +1 more source
Influence of Synchronized Dead Point Elimination Crank on Cyclist Muscle Fatigue
MATEC Web of Conferences, 2016 The aim of this study was to investigate the influence of newly proposed bicycle’s crank to crank angle setting on the Vastus Lateralis (VL) and Bicep Femoris (BF) muscle activity during cycling.
Abdul Aziz Khadijah Akmal +4 more
doaj +1 more source
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
Journal of Graphic Engineering and DesignThe analysis of existing publications highlights a gap in scientific research on mechanisms used in the drive system to move the pressure plate, particularly those that extend the contact duration between the die-cutting mold and cardboard.
Vitalii Vlakh, Ivan Rehei, Oleh Knysh
doaj +1 more source
Spatially Modulated Morphotropic Phase Boundaries in a Compressively Strained Multiferroic Thin Film
Advanced Functional Materials, EarlyView.ABSTRACT The coexisting rhombohedral‐like (R′, MA) and tetragonal‐like (T′, MC) monoclinic phases in compressively strained bismuth ferrite thin films exhibit exceptional piezoelectric and magnetic properties. While previous studies have largely focused on probing the morphotropic phase boundaries (MPBs) comprising ordered R′/T′ twins, their self ...
Ting‐Ran Liu +7 more
wiley +1 more source