Adaptive Routing Approaches for Networked Many-Core Systems

Through advances in technology, System-on-Chip design is moving towards integrating tens to hundreds of intellectual property blocks into a single chip. In such a many-core system, on-chip communication becomes a performance bottleneck for high performance designs. Network-on-Chip (NoC) has emerged as a viable solution for the communication challenges in highly complex chips. The NoC architecture paradigm, based on a modular packet-switched mechanism, can address many of the on-chip communication challenges such as wiring complexity, communication latency, and bandwidth. Furthermore, the combined benefits of 3D IC and NoC schemes provide the possibility of designing a high performance system in a limited chip area. The major advantages of 3D NoCs are the considerable reductions in average latency and power consumption. There are several factors degrading the performance of NoCs. In this thesis, we investigate three main performance-limiting factors: network congestion, faults, and the lack of efficient multicast support. We address these issues by the means of routing algorithms. Congestion of data packets may lead to increased network latency and power consumption. Thus, we propose three different approaches for alleviating such congestion in the network. The first approach is based on measuring the congestion information in different regions of the network, distributing the information over the network, and utilizing this information when making a routing decision. The second approach employs a learning method to dynamically find the less congested routes according to the underlying traffic. The third approach is based on a fuzzy-logic technique to perform better routing decisions when traffic information of different routes is available. Faults affect performance significantly, as then packets should take longer paths in order to be routed around the faults, which in turn increases congestion around the faulty regions. We propose four methods to tolerate faults at the link and switch level by using only the shortest paths as long as such path exists. The unique characteristic among these methods is the toleration of faults while also maintaining the performance of NoCs. To the best of our knowledge, these algorithms are the first approaches to bypassing faults prior to reaching them while avoiding unnecessary misrouting of packets. Current implementations of multicast communication result in a significant performance loss for unicast traffic. This is due to the fact that the routing rules of multicast packets limit the adaptivity of unicast packets. We present an approach in which both unicast and multicast packets can be efficiently routed within the network. While suggesting a more efficient multicast support, the proposed approach does not affect the performance of unicast routing at all. In addition, in order to reduce the overall path length of multicast packets, we present several partitioning methods along with their analytical models for latency measurement. This approach is discussed in the context of 3D mesh networks.

Nordic banks’ entry into the Russian market: motives, processes and challenges

The importance of services in the global economy has grown steadily in the past decades and the growth of services sector’s direct investments has been increasing. Nowadays, all companies are influenced by the much changing global environment and the financial services companies are no exception. The internationalization of financial services companies is an expanding and accelerating phenomenon which has various motivations. The overall aim of this thesis is to shed light on the market entry processes of the Nordic financial services companies when they have entered the Russian market. In this study, the factors affecting Nordic banks’ market entry to Russia are presented in order to better understand what have been the main motives for market entry, what kind of processes the banks have used and what kind of challenges they have faced along the way. A case study approach was used in conducting the empirical research and it aims at investigating a specific case: Nordic banks’ entry into the Russian market. The empirical research was carried out by conducting qualitative interviews for employees involved in entry processes of the case banks. These interviews aimed at examining the Nordic banks’ motives for entering the Russian financial market. This includes reflections on the reasons why the studied banks have decided to enter Russia and what have been the motives behind these decisions. Also, the market entry processes the banks have used when they have entered the Russian market were investigated. The findings allowed comparing the related theories and different market entry modes the case banks have used. Furthermore, the market-related challenges faced by the case banks were mapped and described. In addition, the main factors related to the entry processes of the studied banks were identified and key elements of successful market entry were mapped. The findings suggest that the main motivator for banks have been to follow their customers and hence, increase the revenues and add the value to the shareholders; consequently, being a win-win-win situation to all the related parties. It was also discovered that the banks market entry processes have had resemblances but the banks have taken different paths to get where they are nowadays. As the Russian market environment differs from the one in Nordic countries, also challenges were faced by the case banks. However, the internal challenges were considered more troublesome than the external ones. As the foreign market entry process is complex as well as time and resources consuming, it is vital to understand the specifics of the target market, organizational capabilities and individuals enabling a successful entry process.

Adult education policy in the European Union during the Lisbon decade : the shift to vocational adult learning and work skills matching

This doctoral dissertation investigates the adult education policy of the European Union (EU) in the framework of the Lisbon agenda 2000–2010, with a particular focus on the changes of policy orientation that occurred during this reference decade. The year 2006 can be considered, in fact, a turning point for the EU policy-making in the adult learning sector: a radical shift from a wide--ranging and comprehensive conception of educating adults towards a vocationally oriented understanding of this field and policy area has been observed, in particular in the second half of the so--called ‘Lisbon decade’. In this light, one of the principal objectives of the mainstream policy set by the Lisbon Strategy, that of fostering all forms of participation of adults in lifelong learning paths, appears to have muted its political background and vision in a very short period of time, reflecting an underlying polarisation and progressive transformation of European policy orientations. Hence, by means of content analysis and process tracing, it is shown that the new target of the EU adult education policy, in this framework, has shifted from citizens to workers, and the competence development model, borrowed from the corporate sector, has been established as the reference for the new policy road maps. This study draws on the theory of governance architectures and applies a post-ontological perspective to discuss whether the above trends are intrinsically due to the nature of the Lisbon Strategy, which encompasses education policies, and to what extent supranational actors and phenomena such as globalisation influence the European governance and decision--making. Moreover, it is shown that the way in which the EU is shaping the upgrading of skills and competences of adult learners is modeled around the needs of the ‘knowledge economy’, thus according a great deal of importance to the ‘new skills for new jobs’ and perhaps not enough to life skills in its broader sense which include, for example, social and civic competences: these are actually often promoted but rarely implemented in depth in the EU policy documents. In this framework, it is conveyed how different EU policy areas are intertwined and interrelated with global phenomena, and it is emphasised how far the building of the EU education systems should play a crucial role in the formation of critical thinking, civic competences and skills for a sustainable democratic citizenship, from which a truly cohesive and inclusive society fundamentally depend, and a model of environmental and cosmopolitan adult education is proposed in order to address the challenges of the new millennium. In conclusion, an appraisal of the EU’s public policy, along with some personal thoughts on how progress might be pursued and actualised, is outlined.

Deregulation’s Impact on the Railway Freight Transport Sector’s Future in the Baltic Sea Region

The European transport market has confronted several changes during the last decade. Due to European Union legislative mandates, the railway freight market was deregulated in 2007. The market followed the trend started by other transport modes as well as other previously regulated industries such as banking, telecommunications and energy. Globally, the first country to deregulate the railway freight market was the United States, with the introduction of the Staggers Rail Act in 1980. Some European countries decided to follow suit already before regulation was mandated; among the forerunners were the United Kingdom, Sweden and Germany. The previous research has concentrated only on these countries, which has provided an interesting research gap for this thesis. The Baltic Sea Region consists of countries with different kinds of liberalization paths, including Sweden and Germany, which have been on the frontline, whereas Lithuania and Finland have only one active railway undertaking, the incumbent. The transport market of the European Union is facing further challenges in the near future, due to the Sulphur Directive, oil dependency and the changing structure of European rail networks. In order to improve the accessibility of this peripheral area, further action is required. This research focuses on topics such as the progression of deregulation, barriers to entry, country-specific features, cooperation and internationalization. Based on the research results, it can be stated that the Baltic Sea Region’s railway freight market is expected to change in the future. Further private railway undertakings are anticipated, and these would change the market structure. The realization of European Union’s plans to increase the improved rail network to cover the Baltic States is strongly hoped for, and railway freight market counterparts inside and among countries are starting to enhance their level of cooperation. The Baltic Sea Region countries have several special national characteristics which influence the market and should be taken into account when companies evaluate possible market entry actions. According to thesis interviews, the Swedish market has a strong level of cooperation in the form of an old-boy network, and is supported by a positive attitude of the incumbent towards the private railway undertakings. This has facilitated the entry process of newcomers, and currently the market has numerous operating railway undertakings. A contrary example was found from Poland, where the incumbent sent old rolling stock to the scrap yard rather than sell it to private railway undertakings. The importance of personal relations is highlighted in Russia, followed by the railway market’s strong political bond with politics. Nonetheless, some barriers to entry are shared by the Baltic Sea Region, the main ones being acquisition of rolling stock, bureaucracy and needed investments. The railway freight market is internationalizing, which is perceived via several alliances as well as the increased number of mergers and acquisitions. After deregulation, markets seem to increase the number of railway undertakings at a rather fast pace, but with the passage of time, the larger operators tend to acquire smaller ones. Therefore, it is expected that in a decade’s time, the number of railway undertakings will start to decrease in the deregulation pioneer countries, while the ones coming from behind might still experience an increase. The Russian market is expected to be totally liberalized, and further alliances between the Russian Railways and European railway undertakings are expected to occur. The Baltic Sea Region’s railway freight market is anticipated to improve, and, based on the interviewees’ comments, attract more cargoes from road to rail.

Modeling of fireside deposit formation in two industrial furnaces

Fireside deposits can be found in many types of utility and industrial furnaces. The deposits in furnaces are problematic because they can reduce heat transfer, block gas paths and cause corrosion. To tackle these problems, it is vital to estimate the influence of deposits on heat transfer, to minimize deposit formation and to optimize deposit removal. It is beneficial to have a good understanding of the mechanisms of fireside deposit formation. Numerical modeling is a powerful tool for investigating the heat transfer in furnaces, and it can provide valuable information for understanding the mechanisms of deposit formation. In addition, a sub-model of deposit formation is generally an essential part of a comprehensive furnace model. This work investigates two specific processes of fireside deposit formation in two industrial furnaces. The first process is the slagging wall found in furnaces with molten deposits running on the wall. A slagging wall model is developed to take into account the two-layer structure of the deposits. With the slagging wall model, the thickness and the surface temperature of the molten deposit layer can be calculated. The slagging wall model is used to predict the surface temperature and the heat transfer to a specific section of a super-heater tube panel with the boundary condition obtained from a Kraft recovery furnace model. The slagging wall model is also incorporated into the computational fluid dynamics (CFD)-based Kraft recovery furnace model and applied on the lower furnace walls. The implementation of the slagging wall model includes a grid simplification scheme. The wall surface temperature calculated with the slagging wall model is used as the heat transfer boundary condition. Simulation of a Kraft recovery furnace is performed, and it is compared with two other cases and measurements. In the two other cases, a uniform wall surface temperature and a wall surface temperature calculated with a char bed burning model are used as the heat transfer boundary conditions. In this particular furnace, the wall surface temperatures from the three cases are similar and are in the correct range of the measurements. Nevertheless, the wall surface temperature profiles with the slagging wall model and the char bed burning model are different because the deposits are represented differently in the two models. In addition, the slagging wall model is proven to be computationally efficient. The second process is deposit formation due to thermophoresis of fine particles to the heat transfer surface. This process is considered in the simulation of a heat recovery boiler of the flash smelting process. In order to determine if the small dust particles stay on the wall, a criterion based on the analysis of forces acting on the particle is applied. Time-dependent simulation of deposit formation in the heat recovery boiler is carried out and the influence of deposits on heat transfer is investigated. The locations prone to deposit formation are also identified in the heat recovery boiler. Modeling of the two processes in the two industrial furnaces enhances the overall understanding of the processes. The sub-models developed in this work can be applied in other similar deposit formation processes with carefully-defined boundary conditions.

Numerical Simulation of Stochastic Di erential Equations

Stochastic differential equation (SDE) is a differential equation in which some of the terms and its solution are stochastic processes. SDEs play a central role in modeling physical systems like finance, Biology, Engineering, to mention some. In modeling process, the computation of the trajectories (sample paths) of solutions to SDEs is very important. However, the exact solution to a SDE is generally difficult to obtain due to non-differentiability character of realizations of the Brownian motion. There exist approximation methods of solutions of SDE. The solutions will be continuous stochastic processes that represent diffusive dynamics, a common modeling assumption for financial, Biology, physical, environmental systems. This Masters' thesis is an introduction and survey of numerical solution methods for stochastic differential equations. Standard numerical methods, local linearization methods and filtering methods are well described. We compute the root mean square errors for each method from which we propose a better numerical scheme. Stochastic differential equations can be formulated from a given ordinary differential equations. In this thesis, we describe two kind of formulations: parametric and non-parametric techniques. The formulation is based on epidemiological SEIR model. This methods have a tendency of increasing parameters in the constructed SDEs, hence, it requires more data. We compare the two techniques numerically.

POP UP & LEAN START UP - yrittäjyyden opetusmallin kehittämishanke toisen asteen koulutuksessa

Tutkimuksen tavoitteena oli tarkastella ammatillisen koulutuksen yrittäjyyskasvatuksen käytännön opetuksen toteutusmahdollisuuksia. Tarkasteluun vaikuttaa vuonna 2015 voimaan astuva ammatillisen perusopetuksen opetussuunnitelmauudistus. Käytännön opetuksen toteutuksen viitekehykseksi valittiin synteesi pop up ja lean startup liiketoimintamallien viitekehyksistä. Tutkimuksen kohteena olivat viralliset opetussuunnitelmauudistuksen asiakirjat ja liiketoimintamalleja käsittelevä kirjallisuus. Tutkimusmenetelmänä käytettiin integoivaa narratiivista kirjallisuusanalyysiä. Aineiston analyysissä käytettiin Atlas-ti ohjelmistoa. Tutkimuksen tuloksena muodostui kuva työelämälähtöisistä uudistuvista opetussuunnitelmista, missä yrittäjyyskasvatuksen rakenteet eivät todellisuudessa muutu entisestä merkittävästi. Sen sijaan, uutta tulevat olemaan opetuksen toteutukselle asetetut haasteet: yksilöllistetyt opintopolut ja opiskelumallien monipuolistamisen merkittävä kasvu. Yrittäjyyskasvatukselle asetetaan Suomessa yhteiskunnallisesti korkeita tavoitteita. Se, miten niihin päästään ja millaisella pedagogiikalla, jää eri ammatillisten oppilaitosten ratkaistavaksi paikallisesti. Pop up ja lean startup liiketoimintamallit tarjoavat tulevaisuuden kannalta merkittäviä mahdollisuuksia yrittäjyyden käytännön opetuksen viitekehyksiksi. Lisäksi ne sopivat nopeatempoiseen ja ajallisesti tiukkarajaiseen opetuksen viitekehykseen hyvin uudenaikaisina asiakaslähtöisinä innovaatio- ja liiketoimintamalleina.

Skenaariomenetelmän käyttö toimialaympäristön analyysissa

Tämän pro gradu – tutkielman tarkoituksena on kuvata miten toimialaympäristöä analysoidaan käyttäen tulevaisuudentutkimukseen tarkoitettua skenaariomenetelmää. Globaali muutosvauhti ja lisääntynyt syklisyys tuovat haastetta toimintaympäristön analysointiin. Yrityksille muutosten huomaaminen ja niiden ymmärtäminen ovat pitkän aikavälin menestystekijöitä. Tässä tutkimuksessa tavoitteena on tunnistaa arvopaperimarkkinoiden keskeiset toimialaympäristötekijät ja niihin sisältyvät arvot. Tutkimuksen tarkoituksena on ymmärtää strategisen ja ennakoivan toimintaympäristön seurannan merkitys. Teoreettisena viitekehyksenä keskityttiin tulevaisuudentutkimuksen lisäksi makrotason toimialaympäristöanalyysiin. Aineistonkeruu suoritettiin sekä kirjoituspöytätutkimuksena että kvalitatiivisena tutkimushaastatteluna johtavia toimiala-asiantuntijoita haastattelemalla. Skenaariotyöskentelymenetelmäksi valittiin morfologinen skenaariotyöskentely. Skenaarioita rakentamalla pyrittiin visioimaan mahdollista tulevaisuuden suuntaa ja kuvattiin eri tulevaisuuspolkujen kehittyminen. Tutkimuksessa luotiin tulevaisuustaulukon pohjalta kolme vaihtoehtoista skenaariota Suomen arvopaperimarkkinoille.

A multimethod examination of contributors to successful on-the-job learning for vocational students

Rapid changes in working life and competence requirements of different professions have increased interest in workplace learning. It is considered an effective way to learn and update professional skills by performing daily tasks in an authentic environment. Especially, ensuring a supply of skilled future workers is a crucial issue for firms facing tight competition and a shortage of competent employees due to the retirement of current professionals. In order to develop and make the most of workplace learning, it is important to focus on workplace learning environments and the individual characteristics of those participating in workplace learning. The literature has suggested various factors that influence adults' and professionals’ workplace learning of profession-related skills, but lacks empirical studies on contextual and individual-related factors that positively affect students' workplace learning. Workers with vocational education form a large group in modern firms. Therefore, elements of vocational students’ successful workplace learning during their studies, before starting their career paths, need to be examined. To fill this gap in the literature, this dissertation examines contributors to vocational students’ workplace learning in Finland, where students’ workplace learning is included in the vocational education and training system. The study is divided into two parts: the introduction, comprised of the overview of the relevant literature and the conclusion of the entire study, and five separate articles. Three of the articles utilize quantitative methods and two use qualitative methods to examine factors that contribute to vocational students’ workplace learning. The results show that, from the students’ perspective, attitudinal, motivational, and organizationrelated factors enhance the student’s development of professionalism during the on-the-job learning period. Specifically, the organization-related factors such as innovative climate, guidance, and interactions with seniors have a strong positive impact on the students’ perceived development of professional skills because, for example, the seniors’ guidance and provision of new viewpoints for the tasks helps the vocational students to gain autonomy at work performance. A multilevel analysis shows that of those factors enhancing workplace learning from the student perspective, innovative climate, knowledge transfer accuracy, and the students’ performance orientation were significantly related to the workplace instructors’ assessment regarding the students’ professional performance. Furthermore, support from senior colleagues and the students’ self-efficacy were both significantly associated with the formal grades measuring how well the students managed to learn necessary professional skills. In addition, the results suggest that the students’ on-the-job learning can be divided into three main phases, of which two require efforts from both the student and the on-the-job learning organization. The first phase includes the student’s application of basic professional skills, demonstration of potential in performing daily tasks, and orientation provided by the organization at the beginning of the on-the-job learning period. In the second phase, the student actively develops profession-related skills by performing daily tasks, thus learning a fluent working style while observing the seniors’ performance. The organization offers relevant tasks and follows the student’s development. The third level indicates a student who has reached the professional level described as a full occupation. The results suggest that constructing the vocational students’ successful on-the-job learning period requires feedback from seniors, opportunities to learn to manage entire work processes, self-efficacy on the part of the students, proactive behavior, and initiative in learning. The study contributes to research on workplace learning in three ways: firstly, it identifies the key individual- and organization-based factors that influence the vocational students’ successful on-the-job learning from their perspective and examines mutual relationships between these factors. Second, the study provides knowledge of how the factors related to the students’ view of successful workplace learning are associated with the workplace instructors’ perspective and the formal grades. Third, the present study finds elements needed to construct a successful on-the-job learning for the students.

Ilmastonmuutosteknologiat maailman patenttijärjestelmissä: Case autoteollisuus

Tässä työssä tarkastellaan kahden kansainvälisen patenttiluokitusjärjestelmän vihreiden teknologioiden luokitusjärjestelmiä autoteollisuudessa. Työn tarkoitus on tutkia, kuinka paljon vihreän teknologian patenttianalyysin tulokset eroavat toisistaan, jos tutkimuksissa käytetään eri patenttien luokitusjärjestelmiä. Vanhempi järjestelmä, International Patent Classification, on asemansa vakiinnuttanut kansainvälinen patenttienluokitusjärjestelmä. Vasta viime vuosina käyttöön otettu Cooperative Patent Classification on Euroopan ja Yhdysvaltojen patenttijärjestöjen kehittämä patenttien luokitusjärjestelmä. Tutkimusmenetelmissä hyödynnetään patenttianalyysia ja joukko-oppia. Tutkimuksessa vihreiden teknologioiden luokittelumenetelmien vertailukohteille saatiin määrällisesti samankaltaiset tulokset, mutta niiden sisältämät patentit eivät olleet pääsäännöllisesti samoja. Työssä tarkastellaan myös Toyotan, Daimlerin ja Fordin vihreiden autoteknologiapolkujen kehitystä. Varsinkin Toyota ja Daimler tulevat yhä enemmän panostamaan sähkö- ja hybridiautoihin verrattuna polttomoottoriautoihin.

Development of an Ecology-Oriented Software-Defined Networking Framework

ICT contributed to about 0.83 GtCO2 emissions where the 37% comes from the telecoms infrastructures. At the same time, the increasing cost of energy has been hindering the industry in providing more affordable services for the users. One of the sources of these problems is said to be the rigidity of the current network infrastructures which limits innovations in the network. SDN (Software Defined Network) has emerged as one of the prominent solutions with its idea of abstraction, visibility, and programmability in the network. Nevertheless, there are still significant efforts needed to actually utilize it to create a more energy and environmentally friendly network. In this paper, we suggested and developed a platform for developing ecology-related SDN applications. The main approach we take in realizing this goal is by maximizing the abstractions provided by OpenFlow and to expose RESTful interfaces to modules which enable energy saving in the network. While OpenFlow is made to be the standard for SDN protocol, there are still some mechanisms not defined in its specification such as settings related to Quality of Service (QoS). To solve this, we created REST interfaces for setting of QoS in the switches which can maximize network utilization. We also created a module for minimizing the required network resources in delivering packets across the network. This is achieved by utilizing redundant links when it is needed, but disabling them when the load in the network decreases. The usage of multi paths in a network is also evaluated for its benefit in terms of transfer rate improvement and energy savings. Hopefully, the developed framework can be beneficial for developers in creating applications for supporting environmentally friendly network infrastructures.

Punaisten naisten tiet. Valtiorikosoikeuteen vuonna 1918 joutuneiden Porin seudun naisten toiminta sota-aikana, tuomiot ja myöhemmät elämänvaiheet

Suomen sisällissotaan osallistui vuonna 1918 naisia molemmin puolin rintamaa erilaisissa tehtävissä. Taisteluiden jälkeen yli 5500 punaista naista joutui valtiorikosoikeuteen syytettynä valtiopetoksellisesta toiminnasta. Ne noin 2000 naista, jotka palvelivat punakaartissa aseistettuina, ovat pitkään hallinneet sitä kuvaa, joka suomalaisilla on ollut punaisista naisista. Sen sijaan on tiedetty hyvin vähän niistä naisista, joiden valkoiset katsoivat edistäneen valtiopetosta muilla keinoilla. Tässä tutkimuksessa tarkastellaan, millaisia olivat Porin seudulla ne kapinasta syytetyt naiset, jotka eivät olleet tarttuneet aseisiin ja mikä oli heidän myöhempi kohtalonsa. Työn ensimmäisessä osassa tutkitaan valtiorikosoikeuteen joutuneiden naisten taustaa, toimintaa sota-aikana ja tästä aiheutuneita välittömiä seuraamuksia. Millaisia henkilöitä päätyi valtiorikosoikeuden eteen tuomittavaksi? Millaisissa tehtävissä he olivat sota-aikana toimineet ja miksi? Mitkä seikat olivat oikeudessa raskauttavia, kun valtiorikostuomioita jaettiin? Työn jälkimmäisessä osassa tutkitaan, mitä punaisille naisille tapahtui sodan jälkeen ja miksi näin kävi. Sisällissodan jälkeistä maailmaa hahmotetaan etsimällä vastauksia seuraaviin kysymyksiin: Millainen oli se yhteiskunnassa vallinnut ajan henki, jonka vaikutuspiiriin naiset valtiorikosoikeudesta ja vankilasta palasivat? Miten yhteisö otti heidät vastaan? Miten heihin suhtauduttiin työmarkkinoilla? Miten käsiteltiin punaisia leskiä ja orpoja? Mitä punaisilta odotettiin kansalaisina ja miten heistä pyrittiin muokkaamaan yhteiskuntakelpoisia? Miten poliittisen elämän uudelleenvirittely onnistui ja kiinnostiko se enää näitä naisia? Miten suomalaisen yhteiskunnan muuttuessa myös sen suhtautuminen punaisiin muuttui? Millaisilla toimilla valtiovalta pyrki eri vaiheissa yhtenäistämään rikkirevennyttä kansaa ja miten se näkyi yksittäisten ihmisten elämässä? Ajan kuluessa asenteet muuttuivat ja naiset vanhenivat. Miten naiset kuvasivat kokemaansa myöhemmin omaisilleen? Kysymyksiä pohditaan paikallisesta, Porin seudun näkökulmasta, mutta niitä peilataan kuitenkin jatkuvasti valtakunnalliseen tilanteeseen. Kontekstualisoi- malla paikalliskokemukset laajempaan kokonaisuuteen on voitu paremmin selittää tapahtunutta, ja paikallistutkimuksen kautta on nähty myös koko maassa vallinneita yleisiä olosuhteita. Tutkimuksen kohteena on 267 Porista, Porin maalaiskunnasta ja Ulvilasta kotoisin olevaa naista, jotka joutuivat valtiorikosoikeuden tutkittaviksi. Keskeisimpänä lähdeaineistona ovat seurakuntien rippikirjat ja maistraattien henkikirjat sekä Kansallisarkiston, Kansan arkiston ja Työväen arkistojen sisällissotaa ja sen jälkeistä poliittista elämää valottavat kokoelmat. Tutkimuksen naisista enemmistö oli 18−37-vuotiaita työläisnaisia. Aiemmin rikoksista tuomittuja heidän joukossaan oli hyvin vähän. Suurin osa (n. 71 %) työskenteli punakaartin huollossa keittiö-, siivous- ja vaatetusosastoilla. Noin 21 % työskenteli sairaanhoidossa, ja loput kahdeksan prosenttia olivat punakaartin hallintoa avustavissa muissa tehtävissä. Naiset saivat pääosin lieviä, 2−3 vuoden ehdollisia tuomioita. Vain joka kymmenes nainen tuomittiin ehdottomaan rangaistukseen. Punakaartiin vasta pakomatkalla liittyneet ja kaartissa vähäisissä tehtävissä lyhytaikaisesti toimineet henkilöt vapautettiin syytteistä. Tutkimuksessani olen osoittanut, millaisia vaikeuksia paluu sodanjälkeiseen arkeen tuotti naisille. Varsinkin yksin lastensa kanssa jääneillä oli monenlaisia ongelmia. Sodan aikana levitetty propaganda oli osaltaan lisäämässä vaikeuksia. Toisaalta työtilanne parantui monen naisen osalta jo vuoden 1918 aikana, ja oman punaisen yhteisön tarjoama tuki helpotti arjesta selviytymistä. Elämä tasaantui, naiset perustivat perheitä ja osa palasi työelämään ja politiikkaan. Säilyneiden lähteiden valossa sisällissota näyttäisi radikalisoineen vain pienen osan naisista, kun taas enemmistö kannatti maltillisia sosialidemokraatteja tai jäi kokonaan pois politiikasta. Punaiseksi leimautuminen valtiorikosoikeudessa ei pakottanut naisia muuttamaan uudelle paikkakunnalle; Porin seudulla ja yleensä vielä omassa suvussakin oli riittävästi entisiä punaisia luomassa kollektiivista tukea. Myös valtiovalta pyrki rauhoittamaan poliittista tilannetta ja sopeuttamaan punaisia yhteiskuntaan monin uudistuksin. Naisten kannalta merkittävin myönnytys tapahtui jatkosodan aikana, kun punalesket lopulta oikeutettiin valtiollisen eläkkeen piiriin. Tämä tutkimus on ensimmäinen punaisista naisista laadittu eräänlainen kollektiivinen elämäkerta, jossa on tarkasteltu heidän sodanjälkeistä elämäänsä. Yhteenvetona voidaan todeta, että Porin seudulta valtiorikosoikeuteen joutuneet naiset olivat tavallisia työläisnaisia. Sota ja osallisuus siihen ei tätä asiaa muuttanut. Naiset sopeutuivat yhteiskuntaan nopeasti ja elivät pääosin tavallista työläisperheen arkea sodan jälkeenkin.

Heat-transfer improvements in an axial-flux permanent-magnet synchronous machine

Axial-flux machines tend to have cooling difficulties since it is difficult to arrange continuous heat path between the stator stack and the frame. One important reason for this is that no shrink fitting of the stator is possible in an axial-flux machine. Using of liquid-cooled end shields does not alone solve this issue. Cooling of the rotor and the end windings may also be difficult at least in case of two-stator-single-rotor construction where air circulation in the rotor and in the end-winding areas may be difficult to arrange. If the rotor has significant losses air circulation via the rotor and behind the stator yokes should be arranged which, again, weakens the stator cooling. In this paper we study a novel way of using copper bars as extra heat transfer paths between the stator teeth and liquid cooling pools in the end shields. After this the end windings still suffer of low thermal conductivity and means for improving this by high-heat-conductance material was also studied. The design principle of each cooling system is presented in details. Thermal models based on Computational Fluid Dynamics (CFD) are used to analyse the temperature distribution in the machine. Measurement results are provided from different versions of the machine. The results show that significant improvements in the cooling can be gained by these steps.

Successful new venturing process implemented by the founding entrepreneur: A case of Finnish sawmill industry

The fundamental purpose of this research is to emphasise a founding entrepreneur’s own role in the construction of a successful business story, with the focus being on the analysis of the entrepreneur’s activities. The theoretical section sheds light on the heterogeneous nature of existing performance research and, thereby, opens the way for the behavioural approach research of entrepreneurs in the field of new venture performance research. This research can be seen to be in line with the latest trends in entrepreneurship research, which question the applicability of different organisational theories in entrepreneurship research. For this reason, the founding entrepreneur has been chosen, instead of the company, to be the unit of analysis in this research in order to lighten the link in question while developing and refining new knowledge in the field of entrepreneurship. The empirical section of this research focuses on the entrepreneur’s own actions or behaviours that can be seen to be associated with the company’s success. Although some of these actions may resemble the strategic actions of a company as defined in strategic management literature, these actions taken by the entrepreneur themselves must be distinguished from the different organisational actions. Usually, an entrepreneur makes decisions rather independently, mainly on basis of their own intuition and prevailing market conditions, whereas organisational actions are very systematic, and each decision involves many different people. For this reason, an entrepreneur’s actions must be distinguished from organisational actions. In additional to different action paths, the empirical data collected for this research also offers almost unambiguous proof that the actions taken by an entrepreneur at the different stages of a company’s development do play a crucial role in the success of the companies studied in this research. In this way, it is possible to identify a significant link between the behavioural approach research of entrepreneurs and new venture performance research. Due to a lack of behavioural research into founding entrepreneurs, this research has utilised a qualitative (hermeneutic) research approach. The researcher strove to establish a particularly close connection with the entrepreneurs that were studied here and, thus, understand the actions taken at the different stages of their companies’ development as well as the motives and fundamental purposes of these actions. It would not have been possible to manage such profound data that focuses on causalities by using quantitative methods. In addition to interviews, this research used corporate histories of the companies for collecting some of the research data. These corporate histories can be considered excellent tools for the researcher to obtain a preliminary understanding and can, thereby, be seen to have laid the ground for more in-depth and diverse analyses.

Path Analysis of Online Users Using Clickstream Da-ta: Case Online Magazine Website

This paper explores behavioral patterns of web users on an online magazine web-site. The goal of the study is to first find and visualize user paths within the data generated during collection, and to identify some generic behavioral typologies of user behavior. To form a theoretical foundation for processing data and identifying behavioral ar-chetypes, the study relies on established consumer behavior literature to propose typologies of behavior. For data processing, the study utilizes methodologies of ap-plied cluster analysis and sequential path analysis. Utilizing a dataset of click stream data generated from the real-life clicks of 250 ran-domly selected website visitors over a period of six weeks. Based on the data collect-ed, an exploratory method is followed in order to find and visualize generally occur-ring paths of users on the website. Six distinct behavioral typologies were recog-nized, with the dominant user consuming mainly blog content, as opposed to editori-al content. Most importantly, it was observed that approximately 80% of clicks were of the blog content category, meaning that the majority of web traffic occurring in the site takes place in content other than the desired editorial content pages. The out-come of the study is a set of managerial recommendations for each identified behavioral archetype.