Perspectives interculturelles et interlinguistiques sur le discours académique – Crosscultural and Crosslinguistic Perspectives on Academic Discourse. Volume 1

The Department of French Studies of the University of Turku (Finland) organized an International Bilingual Conference on Crosscultural and Crosslinguistic Perspectives on Academic Discourse from 2022 May 2005. The event hosted specialists on Academic Discourse from Belgium, Finland, France, Germany, Italy, Norway, Spain, and the USA. This book is the first volume in our series of publications on Academic Discourse (AD hereafter). The following pages are composed of selected papers from the conference and focus on different aspects and analytical frameworks of Academic Discourse. One of the motivations behind organizing the conference was to examine and expand research on AD in different languages. Another one was to question to what extent academic genres are culturebound and language specific or primarily field or domain specific. The research carried out on AD has been mainly concerned with the use of English in different academic settings for a long time now – mainly written contexts – and at the expense of other languages. Alternatively the academic genre conventions of English and English speaking world have served as a basis for comparison with other languages and cultures. We consider this first volume to be a strong contribution to the spreading out of researches based on other languages than English in AD, namely Finnish, French, Italian, Norwegian and Romanian in this book. All the following articles have a strong link with the French language: either French is constitutive of the AD corpora under examination or the article was written in French. The structure of the book suggests and provides evidence that the concept of AD is understood and tackled to varying degrees by different scholars. Our first volume opens up the discussion on what AD is and backs dissemination, overlapping and expansion of current research questions and methodologies. The book is divided into three parts and contains four articles in English and six articles in French. The papers in part one and part two cover what we call the prototypical genre of written AD, i.e. the research article. Part one follows up on issues linked to the 13 Research Article (RA hereafter). Kjersti Fløttum asks wether a typical RA exists and concentrates on authors’ voices in RA (self and other dimensions), whereas Didriksen and Gjesdal’s article focuses on individual variation of the author’s voice in RA. The last article in this section is by Nadine Rentel and deals with evaluation in the writing of RA. Part two concentrates on the teaching and learning of AD within foreign language learning, another more or less canonical genre of AD. Two aspects of writing are covered in the first two articles: foreign students’ representations on rhetorical traditions (Hidden) and a contrastive assessment of written exercices in French and Finnish in Higher Education (Suzanne). The last contribution in this section on AD moves away from traditional written forms and looks at how argumentation is constructed in students’ oral presentations (Dervin and Fauveau). The last part of the book continues the extension by featuring four articles written in French exploring institutional and scientific discourses. Institutional discourses under scrutiny include the European Bologna Process (Galatanu) and Romanian reform texts (Moilanen). As for scientific discourses, the next paper in this section deconstructs an ideological discourse on the didactics of French as a foreign language (Pescheux). Finally, the last paper in part three reflects on varied forms of AD at university (Defays). We hope that this book will add some fuel to continue discussing diverse forms of and approches to AD – in different languages and voices! No need to say that with the current upsurge in academic mobility, reflecting on crosscultural and crosslinguistic AD has just but started.

A Technique for Digital Color Image Watermarking Using ICA

With the increase of use of digital media the need for the methods of multimedia protection becomes extremely important. The number of the solutions to the problem from encryption to watermarking is large and is growing every year. In this work digital image watermarking is considered, specifically a novel method of digital watermarking of color and spectral images. An overview of existing methods watermarking of color and grayscale images is given in the paper. Methods using independent component analysis (ICA) for detection and the ones using discrete wavelet transform (DWT) and discrete cosine transform (DCT) are considered in more detail. A novel method of watermarking proposed in this paper allows embedding of a color or spectral watermark image into color or spectral image consequently and successful extraction of the watermark out of the resultant watermarked image. A number of experiments have been performed on the quality of extraction depending on the parameters of the embedding procedure. Another set of experiments included the test of the robustness of the algorithm proposed. Three techniques have been chosen for that purpose: median filter, low-pass filter (LPF) and discrete cosine transform (DCT), which are a part of a widely known StirMark - Image Watermarking Robustness Test. The study shows that the proposed watermarking technique is fragile, i.e. watermark is altered by simple image processing operations. Moreover, we have found that the contents of the image to be watermarked do not affect the quality of the extraction. Mixing coefficients, that determine the amount of the key and watermark image in the result, should not exceed 1% of the original. The algorithm proposed has proven to be successful in the task of watermark embedding and extraction.

Henkilöyhtiön myynnin verotus

Yrityskauppa on yksi vaikeimmista kauppamuodoista. Verotuksella on suuri rooli yrityskaupan suunnittelussa ja toteutuksessa. Tutkimuksessa on vertailtu henkilöyhtiön myynnin eri vaihtoehtoja. Vertailuja on tehty erityisesti verotuksen kannalta. Tutkimuksen tavoitteena on ollut selvittää henkilöyhtiön myynnin verotukselliset seuraamukset. Tutkimuksessa tehtiin verolaskelmia eri vaihtoehdoille ja tutkittiin myös, vaikuttaako yhtiömuodon muutos verotuksen määrään. Tutkimuksen kohteena oli avoin yritys, jonka tiedot toimivat esimerkkinä verolaskelmille. Tutkimusongelmien ratkaisemiseksi tutkimuksessa on perehdytty koh-deyrityksen tilinpäätökseen ja vallitseviin verolakeihin. Näiden avulla on laskettu kokonaisverorasitus myynnin eri vaihtoehdoille. Tutkimuksessa on oletettu, että omistajat ottavat yrityksen myynnistä saadun voiton kokonaisuudessaan heti käyttöön. Lisäksi on tutkittu, miten verotus muuttuu myyntihinnan kasvaessa. Tutkimusten tulosten perusteella todetaan omistuskaupan olevan verotuksen kannalta liiketoimintakauppaa edullisempi vaihtoehto. Yrityksen myyntihinnan kasvaessa havaitaan omistuskaupan olevan aina edullisempi vaihtoehto. Henkilöyhtiön yhtiömuotoa ei kannata muuttaa osakeyhtiöksi verotuksen näkökulmasta, varsinkaan liiketoimintakaupassa.

Power cycling lifetime estimation of IGBT power modules based on chip temperature modeling

In this doctoral thesis, methods to estimate the expected power cycling life of power semiconductor modules based on chip temperature modeling are developed. Frequency converters operate under dynamic loads in most electric drives. The varying loads cause thermal expansion and contraction, which stresses the internal boundaries between the material layers in the power module. Eventually, the stress wears out the semiconductor modules. The wear-out cannot be detected by traditional temperature or current measurements inside the frequency converter. Therefore, it is important to develop a method to predict the end of the converter lifetime. The thesis concentrates on power-cycling-related failures of insulated gate bipolar transistors. Two types of power modules are discussed: a direct bonded copper (DBC) sandwich structure with and without a baseplate. Most common failure mechanisms are reviewed, and methods to improve the power cycling lifetime of the power modules are presented. Power cycling curves are determined for a module with a lead-free solder by accelerated power cycling tests. A lifetime model is selected and the parameters are updated based on the power cycling test results. According to the measurements, the factor of improvement in the power cycling lifetime of modern IGBT power modules is greater than 10 during the last decade. Also, it is noticed that a 10 C increase in the chip temperature cycle amplitude decreases the lifetime by 40%. A thermal model for the chip temperature estimation is developed. The model is based on power loss estimation of the chip from the output current of the frequency converter. The model is verified with a purpose-built test equipment, which allows simultaneous measurement and simulation of the chip temperature with an arbitrary load waveform. The measurement system is shown to be convenient for studying the thermal behavior of the chip. It is found that the thermal model has a 5 C accuracy in the temperature estimation. The temperature cycles that the power semiconductor chip has experienced are counted by the rainflow algorithm. The counted cycles are compared with the experimentally verified power cycling curves to estimate the life consumption based on the mission profile of the drive. The methods are validated by the lifetime estimation of a power module in a direct-driven wind turbine. The estimated lifetime of the IGBT power module in a direct-driven wind turbine is 15 000 years, if the turbine is located in south-eastern Finland.

Lujasta teräksestä valmistetun palkin poikkileikkauksen optimointi

Parin viime vuosikymmenen aikana on kehitetty huomattavasti entistä lujempia teräslaatuja, joiden käyttö ei kuitenkaan ole yleistynyt läheskään samaan tahtiin. Korkeamman hinnan lisäksi yksi merkittävä syy tähän on, että suunnittelijoilla ei usein ole riittäviä tietoja siitä, millaisissa tilanteissa lujemman teräslaadun käytöstä on merkittävää hyötyä. Tilannetta ei myöskään helpota se, että käytössä olevat standardit eivät tarjoa lainkaan ohjeistusta kaikkein lujimpien, myötörajaltaan yli 700MPa terästen käyttöön ja mitoitukseen. Tässä työssä pyritään tarjoamaan suunnittelijalle ohjeita ja nyrkkisääntöjä sopivan lujuusluokan ja profiilin valintaan sekä yleisesti lujempien teräslaatujen käyttöön. Lujemman teräslaadun käytöllä voidaan keventää suunniteltavaa rakennetta ja saada aikaan huomattavia painonsäästöjä. Usein ongelmaksi nousevat kuitenkin stabiiliuskriteerit, sillä teräksen lommahduskestävyys määräytyy suuresti sen lujuusluokasta siten, että mitä lujempaa teräs on, sitä helpommin se lommahtaa. Kun tämä yhdistetään siihen, että lujempaa terästä käytettäessä rakenteesta tulee optimoituna muutenkin pienempi ja kevyempi, kasvaa näiden kahden asian yhteisvaikutuksena kantokyvyn mukaan mitoitetun rakenteen taipuma korkeampiin lujuusluokkiin edetessä hyvin nopeasti sallittujen rajojen yli. Työssä etsitään siksi keinoja sopivan kompromissin löytämiseksi lujuuden ja jäykkyyden välille. Koska muotoilulla ja poikkileikkauksella on suuri merkitys sekä taipuman että stabiliteetin kannalta, tutkitaan erilaisia poikkileikkausvaihtoehtoja ja etsitään optimaalista poikkileikkausta taivutuspalkille matemaattisen optimointimallin avulla. Kun eri poikkileikkausvaihtoehdot on käsitelty ja optimoitu taivutuksen suhteen, tutkitaan poikkileikkauksia myös muissa kuormitustapauksissa. Huomattavan raskaan laskentatyön takia apuna käytetään Matlab-ohjelmistoa itse optimointiin ja Femap-ohjelmaa muiden kuormitustapausten tutkimiseen ja tulosten verifioitiin.

Laadunhallintajärjestelmäprojektin suunnittelu ja projektiorganisaation toimintatapojen kartoittaminen

Tämän diplomityön tavoitteina oli luoda suunnitelma ISO 9001 ja 14001 -sertifikaatteihin oikeuttavalle laadunhallintajärjestelmälle ja luoda malli projektiorganisaation toiminnan mittaamiselle ja kehittämiselle. Lisäksi työn tarkoituksena oli luoda teoreettinen osaamispohja projektipäällikölle laadunhallintajärjestelmäprojektin läpiviemisen tueksi. Työssä perehdyttiin laadunhallinnan periaatteisiin, tietojärjestelmäprojektikehityksen elinkaareen, tietojärjestelmäprojektien kriittisiin menestystekijöihin ja itsearviointimallin laatimisperiaatteisiin. Diplomityön kanssa lomittain suoritetulle laadunhallintajärjestelmäprojektille parhaiten sopivat käytännöt tunnistettiin kirjallisuudesta sekä puolistrukturoidulla haastattelulla Volvo Finland Ab:n johdon edustajille. Työssä luodun suunnitelman mukainen laadunhallintajärjestelmä toteutettiin Volvo Finland Ab:lle yhdessä nelikymmenhenkisen projektiorganisaation kanssa. Projektin aikana tehdyn aktiivisen, osallistuvan havainnoinnin ja diplomityössä luodun itsearviointimallin perusteella kartoitettiin projektiorganisaatiolle parhaiten sopivat toimintamenetelmät. Toimintamenetelmäkartoituksen tuloksena todettiin, että organisaation tietotaito on vertikaalista ja tästä syystä resurssienhallinta nostettiin kriittisimmäksi elementiksi projektien onnistumisen kannalta. Resurssienhallinnan tueksi ehdotettiin Stage-Gate-mallia projektien läpiviemiseen. Mallin avulla voitaisiin resurssit hallitusti kohdistaa uudelleen projektin joka vaiheessa.

Deinking sludge utilization possibilities: technical, economic, and environmental assessments

This report introduces the ENPI project called “EMIR - Exploitation of Municipal and Industrial Residues” which was executed in a co-operation between Lappeenranta University of Technology (LUT), Saint Petersburg State University of Economics (SPbSUE), Saint Petersburg State Technical University of Plant Polymers (SPbSTUPP) and industrial partners from both Leningrad Region (LR), Russia and Finland. The main targets of the research were to identify the possibilities for deinking sludge management scenarios in co-operation with partner companies, to compare the sustainability of the alternatives, and to provide recommendations for the companies in the Leningrad Region on how to best manage deinking sludge. During the literature review, 24 deinking sludge utilization possibilities were identified, the majority falling under material recovery. Furthermore, 11 potential utilizers of deinking sludge were found within the search area determined by the transportation cost. Each potential utilizer was directly contacted in order to establish cooperation for deinking sludge utilization. Finally, four companies, namely, “Finnsementti” – a cement plant in Finland (S1), “St.Gobian Weber” – a light-weight aggregate plant in Finland (S2), “LSR-Cement” – a cement plant in LR (S3), and “Rockwool” – a stone wool plant in LR (S4) were seen as the most promising partners and were included in the economic and environmental assessments. Economic assessment using cost-benefit analysis (CBA) indicated that substitution of heavy fuel oil with dry deinking sludge in S2 was the most feasible option with a benefit/cost ratio (BCR) of 3.6 when all the sludge was utilized. At the same time, the use of 15% of the total sludge amount (the amount that could potentially be treated in the scenario) resulted in a BCR of only 0.16. The use of dry deinking sludge in the production of cement (S3) is a slightly more feasible option with a BCR of 1.1. The use of sludge in stone wool production is feasible only when all the deinking sludge is used and burned in an existing incineration plant. The least economically feasible utilization possibility is the use of sludge in cement production in Finland (S1) due to the high gate fee charged. Environmental assessment was performed applying internationally recognized life cycle assessment (LCA) methodologies: ISO 14040 and ISO 14044. The results of a consequential LCA stated that only S1 and S2 lead to a reduction of all environmental impacts within the impact categories chosen compared to the baseline scenario where deinking sludge is landfilled. Considering S1, the largest reduction of 13% was achieved for the global warming potential (GWP), whereas for S2, the largest decrease of abiotic depletion potential (ADP) was by 1.7%, the eutrophication potential (EP) by 1.8%, and a GWP of 2.1% was documented. In S3, the most notable increase of ADP and acidification potential (AP) by 2.6 and 1.5% was indicated, while the GWP was reduced by 12%, the largest out of all the impact categories. In S4, ADP and AP increased by 2.3 and 2.1% respectively, whereas ODP was reduced by 25%. During LCA, it was noticed that substitution of fuels causes a greater reduction of environmental impact (S1 and S2) than substitution of raw materials (S3 and S4). Despite a number of economically and environmentally acceptable deinking sludge utilization methods being assessed in the research, evaluation of bottlenecks and communications with companies’ representatives uncovered the fact that the availability of the raw materials consumed, and the risks associated with technological problems resulting from the sludge utilization, limited the willingness of industrial partners to start deinking sludge utilization. The research results are of high value for decision-makers at already existing paper mills since the result provide insights regarding alternatives to the deinking sludge utilization possibilities already applied. Thus, the research results support the maximum economic and environmental value recovery from waste paper utilization.

Den Äldsta – livet är ett tillägnande : en vårdvetenskaplig explorativ studie av ett meningsbärande budskap och en innerlig visdom

In the background of the thematic The Eldest – life is acquiring one finds both previews and myths. Wisdom belongs to these myths. The hermeneutical philosophy refers to thinking as o movement from myth to logos in a dialogical oneness. The research uncovers dimensions in the element wisdom as empowered. The experiences of older are saved for further learning and transformation to younger with reference to vulnerable situations where common regulations are no more usefull. The interest goes to an Eldest. The Eldest in the study is pictorial in accordance to the main literature in the study.The Eldest is etymological, fictive and symbolic: – a man who understands higher matters of life, even Gods holy matters. She will set the fulfillment of others as the highest endowment out of an innermost ethos and an innermost wisdom. The innermost is wisdom. The aim is to discover a meaningful message in life is acquiring. In order to see and to learn from the experiences the study aim to uncover the innermost, an innermost wisdom out of a caritative approach. This innermost is anticipated as a longing for unity and health in dayly matters and in a caring ability for the other. The main overstatement is: What will this most meaningfull and innermost by the Eldest out of a living in factual life mirrored in a caring perspective be? Two questions expired; what will the meaningful message in the acquiring be? What will the innermost wisdom in serving the good be? This message and its innermost wisdom will get an expanded meaning out of a caring sentence: Man who dare – seeing back with gratitude, seeing forward in confidence, seeing aside with love and upward in fate wear that dignity, that holiness and that mercy and empathy which belong to life in its basics. The persons attending the research are situated in two contexts. One group has roots in the Lutheran church and the other in a caring profession. The datamaterial is formed out of the usages from these persons, from the spoken (conversation) and the written word (a guestbook). The usages as particular and common are continually integrated in the leading caring sentence from the beginning of the study to the end. The usages stand by the methodological for the final message and wisdom and at the same they form the operative dimension in the study, the evident and the validity. The overarching methodological approach is in the hermeneutic philosophy in accordance with the abductive logic. The usages out of two research groups are most significant in this deductive, inductive and abductive strategy. The usages from the research groups are confronted with the caring sentence in dialogical spaces, halts. The meaning and the innermost searched for will be pictured through the abductive and hermeneutic interpretation and will stand for an articulation of and a successively expansion of meaning. A twine of horizons out of the entire dissemination, the deductive and the inductive, creates the result, as the final message as the ground for an understanding of an even more embracing meaning in an innermost wisdom. The identified bearing movement in the groups in accordance with the caring sentence goes for something higher, something higher than me, to the wellbeing of the other. A conclusion is made and a thesis is identified. This thesis is out from the usages: What can I do in a creating of this caritative? An antithesis is also identified, is a man able to look outside one own and go to something higher, something greater? The synthesis is articulated as a dialogical movement from something … to something higher. The bridge could be maturation, transcendence, the divine or wisdom. The statement finds its root in the attending groups but a difference is also identified. This higher matter is different. The contexts and their meaningfulness decide. A final statement is: learn to see man and her matters hold in life.