Search results for "ground"

Spectroscopic Properties of Holmium-Aluminum- Germanium Co-doped Silica Fiber

2020

We report the basic spectroscopic properties of a home-made holmium-aluminum-germanium co-doped silica fiber, designed for laser applications. We present the ground-state and excitedstate absorption spectra of the fiber along with the upconversion emission spectrum under laser action, which served for making an energy levels’ diagram of Ho3+ ion. We discuss the ways to assess the kinetics of Ho3+ 2-μm fluorescence, focusing on measuring fluorescence lifetime from 5I7 level and nonradiative decay time from 5I6 level. The simple analytical formulae, applicable for fitting of the fluorescence decay curve, are derived, which can be useful for precise modeling of holmiumdoped fiber lasers. PID20…

Lipas data 04/2023

2023

This data includes all sport facilities in Lipas database on 23.4.2023 and basic attribute information about the places. The data is classified and each sport facility has its own Lipas ID. The data is provided as Esri Shapefiles (points, routes and areas). Tämä aineisto sisältää kaikki Lipas-tietokannan liikuntapaikat ja aineistotiedot 23.4.2023. Data on luokiteltu, ja jokaiselle liikuntapaikalle on oma Lipas-ID. Data on tarjolla Esri Shapefile -muodossa (pisteet, reitit ja alueet).

Lipas-data 04/2022

2022

Tämä aineisto sisältää kaikki Lipas-tietokannan liikuntapaikat ja aineistotiedot 29.4.2022. Data on luokiteltu, ja jokaiselle liikuntapaikalle on oma Lipas-ID. Data on tarjolla Esri Shapefile -muodossa (pisteet, reitit ja alueet). This data includes all sport facilities in Lipas database on 29.4.2022 and basic attribute information about the places. The data is classified and each sport facility has its own Lipas ID. The data is provided as Esri Shapefiles (points, routes and areas) in Finnish, Swedish and English.

Lipas-data 10/2022

2022

Tämä aineisto sisältää kaikki Lipas-tietokannan liikuntapaikat ja aineistotiedot 20.10.2022. Data on luokiteltu, ja jokaiselle liikuntapaikalle on oma Lipas-ID. Data on tarjolla Esri Shapefile -muodossa (pisteet, reitit ja alueet). This data includes all sport facilities in Lipas database on 20.10.2022 and basic attribute information about the places. The data is classified and each sport facility has its own Lipas ID. The data is provided as Esri Shapefiles (points, routes and areas) in Finnish, Swedish and English.

Effects of sport-specific training background on performance of volleyball and basketball athletes

2013

Aim: The aim of this study was to assess the influence of 3 years of sport-specific training background (SSTB) on throwing performance and vertical jumping in young female players of team sports. Methods: Thirty-one healthy adolescent girls, of which 11 age-matched control subjects [C], 10 volleyballers (VP) and 10 basketballers (BP) were considered in our analysis. The vertical jumping performance was evaluated by squat jump (SJ), countermovement jump with (CMJ-AS) and without arm swing (CMJ) using Optojump system (Microgate S.R.L., Italy). Instead, the throwing performance was measured by seated backward overhead ball throw (SBOMBT) and seated chest pass throw (SCPT) using a 3-kg rubber m…

"Tää koulutus ei oo tehnyt musta pelkkää jumppamaikkaa" : substantiivinen teoria aikuisoppijjan ammatillisen kasvun holistisesta prosessista liikunna…

2013

Reliability of measurements during countermovement jump assessments: Analysis of performance across subphases

2020

The aim of this study was to examine the reliability of performance measures in the different phases and sub-phases of the countermovement jump (CMJ). Seventeen male athletes competing at a regional level completed 204 valid trails consisting of the execution of maximal hands-on-waist CMJs performed on a force platform. The vertical ground reaction force (VGRF) data obtained at a sampling frequency of 1000 Hz were used to calculate performance-derived variables and determine key points and jump sub-phases. The relative reliability of 92 variables was assessed using the intraclass correlation coefficient (ICC) from a two-way mixed effects model analyzing the time, force, power, velocity, and…

Multiband variability studies and novel broadband SED modeling of Mrk 501 in 2009

2017

Astronomy and astrophysics 603, A31 (2017). doi:10.1051/0004-6361/201629540

Comparison between the MHFEM formulation and a 2nd spatial order FV formulation of the linear groundwater flow problem

2008

Mixed and Mixed Hybrid Finite Elements (MHFE) methods have been widely used in the last decade for simulation of groundwater flow problem, petroleum reservoir problems, potential flow problems, etc. The main advantage of these methods is that, unlike the classical Galerkin approach, they guarantee local and global mass balance, as well the flux continuity between inter-element sides. The simple shape of the control volume, where the mass conservation is satisfied, makes also easier to couple this technique with a Finite Volume technique in the time splitting approach for the solution of advection-dispersion problems. In the present paper a new second spatial approximation order Finite Volum…

Prediction of active peak force using a multilayer perceptron

2017

Both kinematic parameters and ground reaction forces (GRFs) are necessary for understanding the biomechanics of running. Kinematic information of a runner is typically measured by a motion capture system whereas GRF during the support phase of running is measured by force platforms. To analyze both kinematics and kinetics of a runner over several subsequent contacts, an instrumented treadmill or alternatively several force platforms installed over a regulated space are available options, but they are highly immovable, expensive, and sometimes even impractical options. Naturally, it would be highly useful to predict GRFs using a motion capture system only and this way reduce costs and comple…