Results 11 to 20 of about 23,020 (304)

Influence of Crank Length and Crank-Axle Height on Standing Arm-Crank (Grinding) Power [PDF]

open access: yesMedicine & Science in Sports & Exercise, 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 yr, body mass = 104 +/- 1 kg, body fat = 13% +/- 2%) performed eight maximal 6-s sprints on an adjustable standing arm-crank ergometer fitted with an SRM power ...
Vernon, Neville   +3 more
openaire   +4 more sources

Force Model for Crank Group Mechanism and Analysis of Crank Arrangement

open access: yesJixie 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

Numerical Results of Crank-Nicolson and Implicit Schemes to Laplace Equation with Uniform and Non-Uniform Grids

open access: yesInPrime, 2021
In this paper, we investigate the numerical results between Implicit and Crank-Nicolson method for Laplace equation. Based on the numerical results obtained, we get the conclusion that the absolute error of Crank-Nicolson method is smaller than the ...
Mohammad Ghani
doaj   +1 more source

Using Crank-Nicolson Numerical Method to solve Heat-Diffusion Problem

open access: yesTikrit 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

Dyson’s crank of a partition [PDF]

open access: yesBulletin of the American Mathematical Society, 1988
\textit{F. J. Dyson} [Eureka 8, 10--15 (1944)] defined the rank of a partition as the largest part minus the number of parts. Let \(N(m,t,n)\) denote the number of partitions of \(n\) of rank congruent to \(m \mod t\). Dyson conjectured and \textit{A. O. L. Atkin} and \textit{P. Swinnerton-Dyer} [Proc. Lond. Math. Soc.
Andrews, George E., Garvan, F. G.
openaire   +2 more sources

Kinematic and Static Analyses of the Pedaling by Means of New Slider-Crank Mechanism

open access: yesJournal of Biomechanical Science and Engineering, 2007
A slider-crank mechanism whose coupler curve is the approximate ellipse is designed so that a man may perform the pedaling of the elliptical motion of the foot.
Yasuo YOSHIZAWA   +2 more
doaj   +1 more source

Topology and Response Surface Optimization of a Bicycle Crank Arm with Multiple Load Cases

open access: yesApplied 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

Inequalities for the Crank

open access: yesJournal of Combinatorial Theory, Series A, 1998
Using elaborate techniques, the author proves some inequalities between ranks of vector partitions [see \textit{F. G. Garvan}, Trans. Am. Math. Soc. 305, No. 1, 47-77 (1988; Zbl 0641.10009); and \textit{M. D. Hirschhorn}, Am. Math. Mon. 97, No. 5, 398-400 (1990; Zbl 0717.11044)].
openaire   +3 more sources

Influence of Synchronized Dead Point Elimination Crank on Cyclist Muscle Fatigue

open access: yesMATEC 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

Geometric synthesis and kinematic analysis of a combined double-wedging mechanism of the pressure plate drive in the die-cutting press

open access: yesJournal of Graphic Engineering and Design
The 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

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