Search results for "analyysi"
showing 10 items of 1950 documents
Nilpotent Groups and Bi-Lipschitz Embeddings Into L1
2022
We prove that if a simply connected nilpotent Lie group quasi-isometrically embeds into an L1 space, then it is abelian. We reach this conclusion by proving that every Carnot group that bi-Lipschitz embeds into L1 is abelian. Our proof follows the work of Cheeger and Kleiner, by considering the pull-back distance of a Lipschitz map into L1 and representing it using a cut measure. We show that such cut measures, and the induced distances, can be blown up and the blown-up cut measure is supported on “generic” tangents of the original sets. By repeating such a blow-up procedure, one obtains a cut measure supported on half-spaces. This differentiation result then is used to prove that bi-Lipsch…
Television ja Twitterin risteyksessä : sosiaalinen televisio vuorovaikutuksen ja mediatapahtumaan osallistumisen välineenä
2020
"Learning Online" for Vocational Teachers : Visualisation of a Competence-Based Approach in Digital Open Badge-Driven Learning
2018
Vocational education in Finland is based on competence-based qualification requirements. Meanwhile, digital open badges promote competence-based assessment and shared expertise in digital environments. The educational setting supports gamified learning solutions and enhances student motivation. The current study aims to examine how learners experience the competence-based approach in the badge-driven learning process of professional development. The theoretical framework focuses on the concept of instructional badging in the competence-based approach. Coordinated by the country’s northernmost school of profesional teacher education, “Learning Online” is a national professional development p…
Instrumentation for time-of-flight elastic recoil detection analysis
2016
Time-of-flight elastic recoil detection is an ion beam based method to analyze the elemental composition of thin film samples at different depths. In order to improve the mass resolution and to enable kinematic correction a position sensitive gas ionization chamber energy detector was constructed. This detector along with pre-existing timing detectors were connected to a modern fully digitizing data acquisition setup. This thesis describes the design of these instruments, including all aspects from the mechanical design of the gas ionization detector to the algorithm and software development of the digitizing acquisition setup. The performance of the system has been studied with measurements …
No need necessarily to show off! : directives as situated activity in L2 classroom interaction
2004
Kansalaisjärjestöjen julkisuuskuva suomalaisessa lehdistössä : case: Amnesty Internationalin vuosiraportti
2004
Discrete exterior calculus for photonic crystal waveguides
2022
The discrete exterior calculus (DEC) is very promising, though not yet widely used, discretization method for photonic crystal (PC) waveguides. It can be seen as a generalization of the finite difference time domain (FDTD) method. The DEC enables efficient time evolution by construction and fits well for nonhomogeneous computational domains and obstacles of curved surfaces. These properties are typically present in applications of PC waveguides that are constructed as periodic structures of inhomogeneities in a computational domain. We present a two-dimensional DEC discretization for PC waveguides and demonstrate it with a selection of numerical experiments typical in the application area. …
Automated detection and localization system of myocardial infarction in single-beat ECG using Dual-Q TQWT and wavelet packet tensor decomposition
2020
Background and objective. It is challenging to conduct real-time identification of myocardial infarction (MI) due to artifact corruption and high dimensionality of multi-lead electrocardiogram (ECG). In the present study, we proposed an automated single-beat MI detection and localization system using dual-Q tunable Q-factor wavelet transformation (Dual-Q TQWT) denoising algorithm. Methods. After denoising and segmentation of ECG, a fourth-order wavelet tensor (leads × subbands × samples × beats) was constructed based on thediscretewavelet packet transform (DWPT), to represent the features considering the information of inter-beat, intra-beat, inter-frequency, and inter-lead. To reduce the t…
The two stories of economic sanctions : how Russia sanctions are legitimized in business news media
2017
Talouspakotteiden kaksi tarinaa : miten Venäjän vastaiset talouspakotteet on legitimoitu talousmedioissa. Tämän pro gradu -tutkielman päämääränä on selvittää, miten talouspakotteita käsitellään Suomen ja Venäjän suosituissa talouslehdissä. Tutkimusaineisto koostuu suomalaisen Talouselämä ja venäläisen Kommersant -talouslehtien artikkeleista, jotka on julkaistu ajalla maaliskuu 2014 ja maaliskuu 2015. Tässä pro gradu -tutkielmassa vastataan tutkimuskysymykseen mitä diskursiivisia legitimaatiostrategioita on käytetty Venäjän vastaisten talouspakotteiden legitimaatiossa valituissa talouslehtien artikkeleissa? Tutkimussuuntauksena käytän kriittistä diskurssianalyysiä, joka tutkii, miten diskurs…