Search results for "HAp"
showing 10 items of 2767 documents
Tanssiurheilun harjoittelumuotojen ja kilpailunomaisen suorituksen kuormittavuus sekä tanssiurheilijoiden fyysisiä ominaisuuksia
2008
Palenius, Sari 2008. Tanssiurheilun harjoittelumuotojen ja kilpailunomaisen suorituksen kuormittavuus sekä tanssiurheilijoiden fyysisiä ominaisuuksia. Liikuntabiologian laitos, Jyväskylän Yliopisto. Pro Gradu- tutkielma. 84s. Tutkimus sisälsi tanssiurheilijoiden maajoukkueharjoittelun ja simuloidun kilpailutilanteen fysiologisen kuormituksen tutkimista ja lisäksi perustestejä tanssiurheilijoiden fyysisistä ominaisuuksista. Koehenkilöinä käytettiin osittain tanssiurheiluliiton valitsemia nuoria lupaavia tanssijoita eli tehotiimin neljää paria (n=8, 16-17v.) ja osittain satunnaisesti muita pareja Suomen maajoukkueesta. Tutkimuksen tavoitteena oli saada urheilulajin fyysisiä vaatimuksia tunnet…
Yhdistetyn voima- ja kestävyysharjoittelun yhteydet nuorten naisten fyysiseen suorituskykyyn ja terveyteen
2011
Tutkimuksen tavoitteena oli selvittää, miten yhdistetty voima- ja kestävyysharjoittelu ovat yhteydessä voima- ja kestävyysominaisuuksiin, hormonaalisiin vasteisiin ja tiettyihin terveyden markkereihin. Koehenkilöinä oli 25-30-vuotiaita alle liikuntasuositusten liikkuvia naisia, jotka eivät käyttäneet hormonaalista ehkäisyä. Koehenkilöt tekivät yhteensä kolme kertaa viikossa voima- ja kestävyysharjoituksia yhdeksän viikon ajan. Voimaharjoittelu oli itsenäistä kuntosaliharjoittelua ja kestävyysharjoittelu ohjattua sisäpyöräilyharjoittelua. Mittaukset tehtiin tutkimuksen alussa, puolessa välissä ja lopussa. Koehenkilöiden maksimaalinen hapenottokyky kasvoi 8,5 %. Isometrinen maksimivoima kasvo…
Collisional Relaxation Processes Studied by Coherent Raman Spectroscopy for Major Species Present in Combustions
1992
The effects of collisional relaxation processes on the Q-branch profile of major species present in combustions have been studied by high resolution stimulated Raman spectroscopy. Particular interest has focused on the following collisional systems: N2-N2, O2-O2, CO2-CO2, O2-N2, N2-CO2 and N2-H2O. For each colliding pair, starting from accurate determinations of line broadening coefficients over a wide temperature range, state-to-state rates for rotational energy transfers have been deduced by using various fitting laws. Among these rate laws, special attention has been paid to the temperature dependence of the energy corrected scaling (ECS) law combined with a hybrid exponential-power law …
A Fixed Domain Approach in Shape Optimization Problems with Neumann Boundary Conditions
2008
Fixed domain methods have well-known advantages in the solution of variable domain problems, but are mainly applied in the case of Dirichlet boundary conditions. This paper examines a way to extend this class of methods to the more difficult case of Neumann boundary conditions.
Complex objects classified by morphological shape analysis and elliptical Fourier descriptors
2005
This chapter deals with the classification of complex objects by morphological shape analysis and elliptical Fourier descriptors. An unsupervised method has been proposed to identify components with specific shapes by a simple edge detector and to classify them via the description of their contours. A particular application has been arranged in order to evaluate the goodness of this approach when discriminating between normal and pathological human megakaryocytes. Alterations in these cells can occur in many pathological processes and in such cases the pattern, size and shape of the cytoplasm and/or of the nucleus are extremely varied.
Parallel Genetic Solution for Multiobjective MDO
1997
Publisher Summary This chapter reviews a multiobjective, multidisciplinary design optimization of two-dimensional airfoil designs. The control points on leading and trailing edges remain fixed, and the y-coordinates of the other control points are allowed to change during the optimization process. The grid for the Euler solver depends continuously and smoothly on the design parameters. The number of nodes and elements in the mesh might vary according to design because the meshes for the Helmholtz solver are done using the local fitting. The computations are made on an IBM SP2 parallel computer using high-performance switch and the MPICH message-passing library. As gradients are not required…
Stealth dicing with Bessel beams and beyond
2016
In the context of laser cutting of transparent materials, we investigate glass cleaving with Bessel beams and report that a modification of the beam with 3 main lobes drastically enhances cleavability and reduces defects.
Surrogate-assisted evolutionary multiobjective shape optimization of an air intake ventilation system
2017
We tackle three different challenges in solving a real-world industrial problem: formulating the optimization problem, connecting different simulation tools and dealing with computationally expensive objective functions. The problem to be optimized is an air intake ventilation system of a tractor and consists of three computationally expensive objective functions. We describe the modeling of the system and its numerical evaluation with a commercial software. To obtain solutions in few function evaluations, a recently proposed surrogate-assisted evolutionary algorithm K-RVEA is applied. The diameters of four different outlets of the ventilation system are considered as decision variables. Fr…
Shape Sensitivity Analysis and Gradient-Based Optimization of Large Structures Using MLFMA
2014
A fast method for computing the action of shape-differentiated electric field integral equation (EFIE) system matrix to a vector is derived exploiting the multilevel fast multipole algorithm (MLFMA). The proposed method is used in conjunction with the adjoint-variable method (AVM) to compute the shape gradient of arbitrary objective functions depending on shape of a metallic scatterer. The method is demonstrated numerically by optimizing the shape of a parabolic reflector illuminated with a half-wave dipole.
On shape differentiation of discretized electric field integral equation
2013
Abstract This work presents shape derivatives of the system matrix representing electric field integral equation discretized with Raviart–Thomas basis functions. The arising integrals are easy to compute with similar methods as the entries of the original system matrix. The results are compared to derivatives computed with automatic differentiation technique and finite differences, and are found to be in an excellent agreement. Furthermore, the derived formulas are employed to analyze shape sensitivity of the input impedance of a planar inverted F-antenna, and the results are compared to those obtained using a finite difference approximation.