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Dissertations / Theses on the topic 'Grip coefficient'

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1

Ainegren, Mats. "Roller skis' rolling resistance and grip characteristics : influences on physiological and performance measures in cross-country skiers." Doctoral thesis, Mittuniversitetet, Institutionen för teknik och hållbar utveckling, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-16446.

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The aim of this thesis was to investigate roller ski characteristics; classical and freestyle roller skis’ rolling resistance coefficients (μR) and classical style roller skis’ static friction coefficients (μS), and to study the influence of different μR and μS on cross-country skiers’ performance and both physiological and biomechanical indices. The aim was also to study differences in skiing economy and efficiency between recreational skiers, female and male junior and senior elite cross-country skiers.The experiments showed that during a time period of 30 minutes of rolling on a treadmill (
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2

Won, Eric C. "Sensitivity of a general circulation inverse model to sub-grid scale parametrization coefficients." Thesis, Massachusetts Institute of Technology, 1994. http://hdl.handle.net/1721.1/58432.

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3

Elfarra, Monier Ali. "Two-dimensional Finite Volume Weighted Essentially Non-oscillatory Euler Schemes With Uniform And Non-uniform Grid Coefficients." Master's thesis, METU, 2005. http://etd.lib.metu.edu.tr/upload/2/12605898/index.pdf.

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In this thesis, Finite Volume Weighted Essentially Non-Oscillatory (FV-WENO) codes for one and two-dimensional discretised Euler equations are developed. The construction and application of the FV-WENO scheme and codes will be described. Also the effects of the grid coefficients as well as the effect of the Gaussian Quadrature on the solution have been tested and discussed. WENO schemes are high order accurate schemes designed for problems with piecewise smooth solutions containing discontinuities. The key idea lies at the high approximation level, where a convex combination of all the candid
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Elfarra, Monier Ali Supervisor :. Akmandor İ Sinan. "Two dimensional finite volume weighted essentially non-oscillatory euler schemes with uniform and non-uniform grid coefficients." Ankara : METU, 2005. http://etd.lib.metu.edu.tr/upload/2/12605898/index.pdf.

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5

Souza, Juliana Marta Rodrigues de 1985. "Estudo da dispersão de risco de epizootias em animais = o caso da influenza aviária." [s.n.], 2010. http://repositorio.unicamp.br/jspui/handle/REPOSIP/307276.

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Orientador: João Frederico da Costa Azevedo Meyer<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Matemática, Estatística e Computação Científica<br>Made available in DSpace on 2018-08-15T23:20:24Z (GMT). No. of bitstreams: 1 Souza_JulianaMartaRodriguesde_M.pdf: 3448446 bytes, checksum: c0a56c82b26926f022b1fbbb4b9e4fbe (MD5) Previous issue date: 2010<br>Resumo: Esta dissertação de mestrado do grupo de biomatemática do Instituto de Matemática Aplicada e Computacional da UNICAMP, com auxílio de Bolsa de mestrado da CNPq, é resultado de dois anos, 2008 e 2009, de es
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6

Фролов, Іван Вадимович. "Оптимальне секціонування повітряних розподільчих мереж 6-20 кВ в умовах застосування Smart Grid технологій". Master's thesis, КПІ ім. Ігоря Сікорського, 2021. https://ela.kpi.ua/handle/123456789/42553.

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Актуальність теми. Зважаючи на політику закладену в стратегії розвитку електроенергетичного сектору України, а саме інтеграцію до ENTSO-E, виникає значна кількість питань, які мають бути вирішені до моменту інтеграції. Одним з таких питання є підвищення надійності електричних мереж. Це питання частково може бути вирішено, за рахунок оптимального секціонування повітряних розподільчих мереж 6 - 20 кВ в умовах застосування Smart Grid. У магістерській дисертації представлено варіант визначення оптимального секціонування розподільчих мереж 6 - 20 кВ, за допомогою покрашеної методики розрахунку на
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7

Radhouani, Mohamed Sassi. "Analyse du transfert radiatif dans des milieux poreux semi-transparents gris à l'aide de la méthode de développement en mode normal : application au chauffage des gaz et a la détermination expérimentale des coefficients d'extinction." Perpignan, 1986. http://www.theses.fr/1986PERP0005.

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8

Radhouani, Mohamed Sassi. "Analyse du transfert radiatif dans des milieux poreux semi-transparents gris à l'aide de la méthode de développement en mode normal application au chauffage des gaz et à la détermination expérimentale des coefficients d'extinction /." Grenoble 2 : ANRT, 1986. http://catalogue.bnf.fr/ark:/12148/cb37600617r.

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9

Persson, Erik, and Patrik Jonsson. "Utvärdering av Velanders formel för toppeffektberäkning i eldistributionsnät : Regressionsanalys av timvis historiska kunddata för framtagning av Velanderkonstanter." Thesis, Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-40046.

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Toppeffekter används av elnätsbolag för att dimensionera elnätet, vilket blir allt viktigare för varje år. Fler och fler invånare och företag ökar sin elkonsumtion och förväntar sig en driftsäker och stabil elförsörjning. Det finns två vanliga metoder att beräkna toppeffekter. Första sättet är Velanders formel som är en enkel metod för att uppskatta toppeffekter. Velanders formel behöver bara årsenergi och vetskap om kundkategori med tillhörande Velanderkonstanter för beräkning av uppskattad toppeffekt. Sedan finns den mer komplexa typkurvemetoden som behöver flera olika parametrar, t.ex. grad
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10

Micard, Diane. "Dissipation et mélange en turbulence stratifiée : une approche expérimentale." Thesis, Lyon, 2018. http://www.theses.fr/2018LYSEC041/document.

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Le climat de la Terre dépend en grande partie des échanges énergétiques entre les masses d’eau chaudes et froides de nos océans. Afin de prédire et de comprendre les variations de notre climat, les modèles numériques globaux de l’océan doivent pouvoir déterminer quelle fraction d'énergie est convertie en mélange irréversible dans un écoulement turbulent et stablement stratifié. Il apparaît que cette fraction est sensible aux paramètres de l’écoulement, ce qui a récemment conduit les océanographes à remettre en question la paramétrisation d'Osborn pour le coefficient de diffusion turbulente kz,
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11

董淳昱. "A Multi-grid Scheme for Elliptic Equations with Highly Oscillating Coefficient." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/20874025482218904162.

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碩士<br>國立交通大學<br>應用數學系所<br>103<br>The subject of this thesis is the application of the multi-grid method to solve Neumann boundary condition and the elliptic equations with discontinuous or highly oscillating coefficients. Numerical discretization is based on fi ve-point finite difference method. First, we discuss a special case which is ill-posed. When we execute the multi-grid method in this case, whether the coarse-grid correction problem is solvable or not is an issue which we need to discuss. To avoid a situation that the coarse-grid correction problem is not solvable and ensure that the m
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12

Cheng, Hung Chao, and 鄭宏昭. "A Study on the Manning Roughness Coefficient of the Reinforced Concrete Grid Revetment Engineering." Thesis, 1998. http://ndltd.ncl.edu.tw/handle/85714813279308239768.

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13

Chisolm, Rachel Elizabeth. "The effect of grid scale on calibration of two-dimensional river models through the drag coefficient." Thesis, 2011. http://hdl.handle.net/2152/ETD-UT-2011-05-3448.

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New survey technologies are able to provide detailed data on the form and topography of riverbeds. With this increased data resolution, the required computational time rather than data availability has become the limiting factor for river models. Detailed bathymetric data can be used to provide better empirical representation of drag and roughness at fine scales, allowing a priori selection of roughness using known physics rather than a posteriori calibration. However, we do not have sufficient guidance or understanding from the literature to represent known heterogeneities smaller than our
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14

Zhalehrajabi, E., Nejat Rahmanian, and N. Hasan. "Effects of mesh grid and turbulence models on heat transfer coefficient in a convergent-divergent nozzle." 2014. http://hdl.handle.net/10454/10826.

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No<br>The results of computational fluid dynamics simulation for convective heat transfer of turbulent flow in a cooled convergent-divergent nozzle are reported. The importance of the heat transfer coefficient is to find the most suitable metals for the nozzle wall as well as its application for producing nano-particles. ansys-icem and ansys-cfx 13.0 are used to mesh and simulate fluid flow in the nozzle, respectively. Effects of grid resolution and different turbulence models on the heat transfer coefficient are investigated. Three turbulence models of k-omega, k-epsilon and shear stress tran
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15

Mulaudzi, Tshimangadzo Sophie. "Evaluation of the regression coefficients for South Africa from solar radiation data." Thesis, 2019. http://hdl.handle.net/11602/1473.

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PhD (Physics)<br>Department of Physics<br>The knowledge of solar radiation in this dispensation is crucial. The lack of grid lines in the remote rural areas of South Africa necessitates the use of solar energy as an alternative energy resource. Solar radiation data is one of the primary factors considered for the installation of renewable energy devices and they are very useful for solar technology designers and engineers. In some developing countries, estimation of solar radiation becomes a challenge due to the lack of weather data. This scenario is also applicable to South Africa (SA) wherei
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16

Mahfouth, Altayeb. "Fractal grid-turbulence and its effects on a performance of a model of a hydrokinetic turbine." Thesis, 2016. http://hdl.handle.net/1828/7728.

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This thesis focuses on generating real world turbulence levels in a water tunnel rotor test using fractal grids and characterizing the effect of the fractal grid generated-turbulence on the performance of hydrokinetic turbines. The research of this thesis is divided into three studies: one field study and two laboratory studies. The field study was conducted at the Canadian Hydro Kinetic Turbine Test Centre (CHTTC) on the Winnipeg River. An Acoustic Doppler Velocimeter (ADV) was used in the field study to collect flow measurements in the river. The laboratory studies were conducted at the Univ
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