Selaus nimekkeen mukaan kokoelmassa Diplomityöt ja Pro gradu -tutkielmat
Aineistot 9389-9408 / 12710
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Steam distillation of lignin to remove odor
(2024)Given the relentless depletion of raw materials on a global scale, there is a constant and pressing quest for resources that align with sustainability principles. As industry advances and the global population grows, the ... -
Steam generator designs for modular PWR test reactor
(2019)The purpose of this Master’s thesis is to scale-down the steam generator (SG) of three different PWR designs. The designs of concern were the vertical SG in the EPR, the horizontal SG in the AES-2006, and the helical SG ... -
Steam sparger modelling for boiling water reactor suppression pool
(2017)During the Fukushima accident a pressure inside the containment was twice higher than it was supposed to be under fully mixed pool conditions. It became clear, that there’s a need for a more detailed study of the pressure ... -
Steganografia ja kuvien digitaalinen vesileimaus
(2014)Steganografian tarkoituksena on salaisen viestin piilottaminen muun informaation sekaan. Tutkielmassa perehdytään kirjallisuuden pohjalta steganografiaan ja kuvien digitaaliseen vesileimaamiseen. Tutkielmaan kuuluu myös ... -
Steroidien selektiivinen erottaminen sähköavusteisesti mikroemulsioita käyttäen
(2012)Mikroemulsiosähkökineettinen kromatografia on sähköavusteinen erotusmenetelmä. Yhdisteiden erottuminen tapahtuu mikroemulsiopisaroiden vaikutuksesta, kun nanometrien kokoiset öljypisarat ovat dispergoituneena veteen ... -
Sterolin valmistus selluprosessin yhteydessä
(2004)Työssä tutkittiin UPM-Kymmene Oyj Kaukaan kemiallisella tehtaalla käytössä olevia steroliprosesseja. Steroleita erotetaan sulfaattiselluloosan keitossa syntyvasta suovasta uutetusta neutraaliainejakeesta. Neutraaliaine ... -
Stochastic approximation methods in stochastic optimization
(2013)Stochastic approximation methods for stochastic optimization are considered. Reviewed the main methods of stochastic approximation: stochastic quasi-gradient algorithm, Kiefer-Wolfowitz algorithm and adaptive rules for ... -
Stochastic particle models: mean reversion and burgers dynamics. An application to commodity markets
(2016)The aim of this study is to propose a stochastic model for commodity markets linked with the Burgers equation from fluid dynamics. We construct a stochastic particles method for commodity markets, in which particles ... -
Stochastic variability of output levels in a pulp mill
(2012)Quite often, in the construction of a pulp mill involves establishing the size of tanks which will accommodate the material from the various processes in which case estimating the right tank size a priori would be vital. ... -
Stock and Bond Market Integration: Evidence from Russian Financial Markets
(2008)Minimizing the risks of an investment portfolio but not in the favour of expected returns is one of the key interests of an investor. Typically, portfolio diversification is achieved using two main strategies: investing ... -
Stock flow through a drum screen
(2004)Tässä diplomityössä haluttiin mallintaa kuidutusrummun toimintaa Fluent virtausmallinusohjelman avulla. Aikaisempi tieto ja kehitystyö on perustunut kokemukseen ja käytännön kokeisiin. Kehitystyön alkuaikoina on suoritettu ... -
Stock market reaction on dividend announcements : evidence from Nasdaq Nordic
(2023)This thesis researches the short-term stock market reaction on different dividend change announcements during 2018−2022 in Nasdaq Nordic. Data consists of 977 dividend announcements by 253 firms, including 581 dividend ... -
Stock market reaction to negative corporate sustainability news : a comparative study of market reactions in Europe and Asia
(2020)This thesis examines the short-term market reactions to negative corporate sustainability-related news announcements. The stock market reactions are compared between Europe and Asia to assess how the region and different ... -
Stock Market reaction to the CSR announcements of American fast food companies
(2014)The purpose of this study is to examine whether Corporate Social Responsibility (CSR) announcements of the three biggest American fast food companies (McDonald’s, YUM! Brands and Wendy’s) have any effect on their stock ... -
Stock market reactions to board and management changes: evidence from Nasdaq OMX Helsinki
(2019)This thesis investigates the short-term stock price reaction to board and management change announcements in the Finnish stock market. The data consists of 201 board and management change announcements from January 2012 ... -
Stock market response to CSR announcements: an event study of the Finnish pulp and paper industry
(2017)Corporate social responsibility (CSR) has become a current issue for companies when making economic decisions. The studies of CSR on market returns have received special attention from scholar and there is a need to examine ... -
Stock Price Reactions on M&A, Dividends and Game Releases. Evidence from Gaming Industry.
(2013)A rapidly growing gaming industry, which specializes on PC, console, online and other games, attracts attention of investors and analysts, who try to understand what drives changes of the gaming industry companies’ stock ... -
Stock price reactions to DJSI index reconstitutions : short-term event study approach
(2024)Sustainability and corporate sustainability rankings continuously gain stature due to growing regulation and investor interest; measuring sustainability and linking it to financial performance is vital for company management. ... -
Stock price reactions to profit warnings in the Helsinki stock exchange during the COVID-19 pandemic
(2023)This thesis examines the effect of profit warnings on stock prices in the Helsinki stock exchange during the COVID-19 pandemic 2020-2022. The effects of both positive and negative profit warnings are tested. The thesis ... -
Stock Repurchase Authorizations - Finnish Companies
(2012)The aim of this study is to examine the abnormal market reaction caused by share repurchase authorizations. We study this abnormal reaction from five different angles. First four concentrate on average abnormal returns while ...
