24 resultados para primes in short intervals


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The study examines the signalling of text organisation in research articles (RA) in French. The work concentrates on a particular type of organisation provided by text sequences, i.e. structures organising text to items of which at least some are signalled by markers of addition or order: First… 0… The third point… In addition… / Premièrement… 0… Le troisième point… De plus… By indicating the way the text is organised, these structures guide the reader in the reading process so that he doesn’t need to interpret the text structure himself. The aim of the work is to study factors affecting the marking of text sequences. Why is their structure sometimes signalled explicitly by markers such as secondly, whereas in other places such markers are not used? The corpus is manually XML-annotated and consists of 90 RAs (~800 000 words) in French from the fields of linguistics, education and history. The analysis highlights several factors affecting the marking of text sequences. First, exact markers (such as fist ) seem to be more frequent in sequences where all the items are explicitly signalled by a marker, whereas additive markers (such as moreover) are used in sequences with both explicitly signalled and unmarked items. The marking of explicitly signalled sequences seems thus to be precise and even repetitive, whereas the signalling of sequences with unmarked items is altogether more vague. Second, the marking of text sequences seems to depend on the length of the text. The longer the text segment, the more vague the marking. Additive markers and unmarked items are more frequent in longer sequences possibly covering several pages, whereas shorter sequences are often signalled explicitly by exact markers. Also the marker types vary according to the sequence length. Anaphoric expressions, such as first, are fairly close to their referents and are used in short sequences, connectors, such as secondly, are frequently used in sequences of intermediate length, whereas the longest sequences are often signalled by constructions composed of an ordinal and a noun acting as a subject of the sentence: The first item is… Finally, the marking of text organisation depends also on the discipline the RA belongs to. In linguistics, the marking is fairly frequent and precise; exact markers such as second are the most used, and structures with unmarked items are less common. Similarly, the marking is fairly frequent in education. In this field, however, it is also less precise than in linguistics, with frequent unmarked items and additive markers. History, on the other hand, is characterised by less frequent marking. In addition, when used, the marking in this field is also less precise and less explicit.

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The main aims of the present report are to describe the current state of railway transport in Russia, and to gather standpoints of Russian private transportation logistics sector towards the development of new railway connection called Rail Baltica Growth Corridor, connecting North-West Russia with Germany through the Baltic States and Poland. North-West Russia plays important role not only in Russian logistics, but also wider European markets as in container sea ports handling is approx. 2.5 mill. TEU p.a. and handling volume in all terminals is above 190 million tons p.a. The whole transportation logistics sector is shortly described as an operational environment for railways – this is done through technical and economic angles. Transportation development is always going in line with economics of the country, so the analysis on economical development is also presented. Logistics integration of the country is strongly influenced by its engagement in the international trade. Although, raw material handling at sea ports and container transports (imports) are blossoming, domestic transportation market is barely growing (in long-term perspective). Thus, recent entrance of Russia into World Trade Organization (WTO) is analyzed theme in this research, as the WTO is an important regulator of the foreign trade and enabler of volume growth in foreign trade related transportation logistics. However, WTO membership can influence negatively the development of Russia’s own industry and its volumes (these have been uncompetitive in global markets for decades). Data gathering in empirical part was accomplished by semi-structured case study interviews among North-West Russian logistics sector actors (private). These were conducted during years 2012-2013, and research compiles findings out of ten case company interviews. Although, there was no sea port involved in the study, most of the interviewed companies relied in European Logistics within significant parts in short sea shipping and truck combined transportation chains (in Russian part also using railways). As the results of the study, it could be concluded that Rail Baltica is seen as possible transport corridor in most of the interviewed companies, if there is enough cargo available. However, interviewees are a bit sceptical, because major and large-scale infrastructural improvements are needed. Delivery time, frequency and price level are three main factors influencing the attractiveness of Rail Baltica route. Price level is the most important feature, but if RB can offer other advantages such as higher frequency, shorter lead times or more developed set of value-added services, then some flexibility is possible for the price level. Environmental issues are not the main criteria of today, but are recognized and discussed among customers. Great uncertainty exists among respondents e.g. on forthcoming sulphur oxide ban on Baltic Sea shipping (whether or not it is going to be implemented in Russia). Rather surprisingly, transportation routes to Eastern Europe and Mediterranean area are having higher value and price space than those to Germany/Central Europe. Border crossing operations (traction monopoly at rails and customs), gauge widths as well as unclear decision-making processes (in Russia), are named as hindering factors. Performance standards for European connected logistics among Russian logistics sector representatives are less demanding as compared to neighbourhood countries belonging to EU.

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Presentation at Open Repositories 2014, Helsinki, Finland, June 9-13, 2014

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Tämän tutkimuksen tarkoituksena oli tutkia miten Pirkanmaan Osuuskaupan esimiehet ymmärtävät työhyvinvoinnin merkityksen esimiestyössään ja mitä asioita heidän tulisi vielä kehittää työhyvinvointi osaamisessaan. Työkyvyn johtamista verrattiin Elinkeinoelämän keskusliiton luomaan työkyvynjohtamisen malliin. Tutkimuksen pohjalta laadittiin ehdotuksia, jotta esimiesten osaamista, ymmärtämystä ja kykyä hyödyntää työhyvinvoinnin välineitä voitaisiin kehittää ja ylläpitää oikeilla toimenpiteillä. Yrityksissä työhyvinvointiin on alettu kiinnittää entistä enemmän huomiota kiireisen työtahdin, työn vaatimusten sekä työurien mahdollisten pidentymisen vuoksi, jolloin työnantajan lisäksi vaaditaan myös työntekijöiltä panostusta työhyvinvointiin. Tutkimus toteutettiin käyttämällä laadullista menetelmää. Aineiston keruu tehtiin puolistrukturoidun teemahaastattelun avulla. Haastatteluihin valikoitui 4 esimiestä. Haastattelujen avulla kartoitettiin esimiesten tietoja ja näkemyksiä työhyvinvoinnista ja heidän työhyvinvointiosaamisen tasosta. Tutkimuksen avulla selvisi, että esimiesten keskuudessa työhyvinvoinnin ylläpitämiseen ja kehittämiseen panostetaan vähemmän kuin mitä olisi mahdollista. Suurimmiksi esteiksi työhyvinvoinnin toteuttamiselle muodostuivat aika, resurssit ja asenteet. Pirkanmaan Osuuskaupan johtamistyön ja toimintatapojen välillä on eroja verrattuna Elinkeinoelämän keskusliiton työkykyjohtamisen malliin. Esimiestyö on mahdollisuuksia täynnä oleva kilpailuetu, mutta samalla myös huomattava haaste.

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Tämän tutkimuksen tarkoituksena oli laadullisia tutkimusmenetelmiä yhdistelemällä ja relevanttia tieteellistä kirjallisuutta hyödyntämällä selvittää, miten tutkimuksen kohdeyrityksen toteuttamaa tapahtumamarkkinointia voitaisiin kehittää vastaamaan paremmin yrityksen muuttuvia tarpeita. Tähän liittyen tutkittiin kohdeyrityksen näkökulmasta, miten tapahtumamarkkinointi nähdään, ja miten sitä hyödynnetään tällä hetkellä osana yrityksen markkinointiviestintää. Kuluttajan näkökulmaa hyödyntäen pyrittiin selvittämään, mitä vaikutuksia toteutetulla tapahtumamarkkinoinnilla on tapahtumiin osallistuvien yksilöiden kuluttajakäyttäytymiseen ja heidän kokemaansa brändiin. Lopuksi tutkittiin, missä rooleissa tapahtumiin osallistuvat yksilöt ovat kohdeyrityksen tuotteiden kuluttamiseen liittyvässä päätöksentekoprosessissa, ja mitä muita vaikuttajia prosessiin sisältyy. Empiirisiä tutkimustuloksia ja tieteellisessä kirjallisuudessa määriteltyjä parhaita toimintatapoja vertailemalla pyrittiin tunnistamaan eroavaisuuksia ja mahdollisia kehityskohteita. Työ toteutettiin tapaustutkimuksena, jossa tutkittavaa ilmiötä lähestyttiin sekä yrityksen että kuluttajan näkökulmasta. Tutkimuksen laadullinen aineisto kerättiin puolistrukturoitujen haastattelujen avulla, jonka lisäksi tukevana menetelmänä hyödynnettiin havainnointia. Haastattelujen kohteena oli kohdeyrityksen markkinointivastaavan lisäksi 19 järjestettyyn case-tapahtumaan osallistunutta yksilöä. Tulokset paljastivat tiettyjä eroavaisuuksia kohdeyrityksen toteuttaman tapahtumamarkkinoinnin ja alan tieteellisessä kirjallisuudessa määriteltyjen parhaiden toimintatapojen välillä. Tutkimustulokset kohdistivat huomiota myös tapahtumamarkkinoilla saavutettaviin hyötyihin lyhyellä ja pitkällä aikavälillä. Lisäksi tuloksiin perustuen muodostettiin uutta tietoa toiminnan kohteena olevien yksilöiden ku-luttamiseen liittyvästä päätöksentekoprosessista ja siihen sisältyvistä rooleista.

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This master’s thesis has been done for Drive! –project in which a new electric motor solution for mobile working machines is developed. Generic simulation model will be used as marketing and development tool. It can be used to model a wide variety of different vehicles with and without electric motor and to show customer the difference between traditionally build vehicles and those with new electric motor solution. Customers can also use simulation model to research different solutions for their own vehicles. At the start of the project it was decided that MeVEA software would be used as main simulation program and Simulink will only be used to simulate the operation of electrical components. Development of the generic model started with the research of these two software applications, simulation models which are made with them and how these simulation models can be build faster. Best results were used for building of generic simulation model. Finished generic model can be used to produce new tractor models for real-time simulations in short notice. All information about model is collected to one datasheet which can be easily filled by the user. After datasheet is filled a script will automatically build new simulation model in seconds. At the moment generic model is capable of building simulation models for wide variety of different tractors but it can be easily altered for other vehicle types too which would also benefit greatly from electric drive solution. Those could be for example wheel loaders and harvesters.

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Software is a key component in many of our devices and products that we use every day. Most customers demand not only that their devices should function as expected but also that the software should be of high quality, reliable, fault tolerant, efficient, etc. In short, it is not enough that a calculator gives the correct result of a calculation, we want the result instantly, in the right form, with minimal use of battery, etc. One of the key aspects for succeeding in today's industry is delivering high quality. In most software development projects, high-quality software is achieved by rigorous testing and good quality assurance practices. However, today, customers are asking for these high quality software products at an ever-increasing pace. This leaves the companies with less time for development. Software testing is an expensive activity, because it requires much manual work. Testing, debugging, and verification are estimated to consume 50 to 75 per cent of the total development cost of complex software projects. Further, the most expensive software defects are those which have to be fixed after the product is released. One of the main challenges in software development is reducing the associated cost and time of software testing without sacrificing the quality of the developed software. It is often not enough to only demonstrate that a piece of software is functioning correctly. Usually, many other aspects of the software, such as performance, security, scalability, usability, etc., need also to be verified. Testing these aspects of the software is traditionally referred to as nonfunctional testing. One of the major challenges with non-functional testing is that it is usually carried out at the end of the software development process when most of the functionality is implemented. This is due to the fact that non-functional aspects, such as performance or security, apply to the software as a whole. In this thesis, we study the use of model-based testing. We present approaches to automatically generate tests from behavioral models for solving some of these challenges. We show that model-based testing is not only applicable to functional testing but also to non-functional testing. In its simplest form, performance testing is performed by executing multiple test sequences at once while observing the software in terms of responsiveness and stability, rather than the output. The main contribution of the thesis is a coherent model-based testing approach for testing functional and performance related issues in software systems. We show how we go from system models, expressed in the Unified Modeling Language, to test cases and back to models again. The system requirements are traced throughout the entire testing process. Requirements traceability facilitates finding faults in the design and implementation of the software. In the research field of model-based testing, many new proposed approaches suffer from poor or the lack of tool support. Therefore, the second contribution of this thesis is proper tool support for the proposed approach that is integrated with leading industry tools. We o er independent tools, tools that are integrated with other industry leading tools, and complete tool-chains when necessary. Many model-based testing approaches proposed by the research community suffer from poor empirical validation in an industrial context. In order to demonstrate the applicability of our proposed approach, we apply our research to several systems, including industrial ones.

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The objective of the study is to extend the existing hedging literature of the commodity price risks by investigating what kind of hedging strategies can be used in companies using bitumen as raw material in their production. Five different alternative swap hedging strategies in bitumen markets are empirically tested. Strategies tested are full hedge strategy, simple, conservative, and aggressive term structure strategies, and implied volatility strategy. The effectiveness of the alternative strategies is measured by excess returns compared to no hedge strategy. In addition, the downside risk of each strategy is measured with target absolute semi-deviation. Results indicate that any of the tested strategies does not outperform the no hedge strategy in terms of excess returns in all maturities. The best-performing aggressive term structure strategy succeeds to create positive excess returns only in short maturities. However, risk seems to increase hand-in-hand with the excess returns so that the best-performing strategies get the highest risk metrics as well. This implicates that the company willing to gain from favorable price movements must be ready to bear a greater risk. Thus, no superior hedging strategy over the others is found.

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Tämän Pro -gradu tutkielman tavoitteena on tutkia suomalaisen yrityshautomo-konseptin soveltuvuutta venäläisten ICT-alan start-up-yrittäjien tarpeisiin. Tutkielma on tehty suomalaiselle pörssiyhtiölle, joka laajentaa toimintaansa Venäjälle perustamalla teknologiakeskuksen Pietariin. Kohdeyritys on teettänyt useita selvi-tyksiä Pietarin ICT-sektorista, sen ongelmista ja kehitystarpeista. Sen sijaan käsitystä ei ole siitä, miten haastavaksi yksittäinen yrittäjä kokee liiketoiminta-ympäristön ja mitä tukipalveluita hän liiketoiminnassaan tarvitsee. Tutkimuksen tavoitteena on vastata näihin kysymyksiin sekä peilata saatuja vastauksia kohdeyrityksen Suomessa tarjoamiin hautomopalveluihin. Kirjallisuuskatsauksessa on käyty läpi yrityshautomotoiminnan historiaa ja toiminnan saamia erilaisia muotoja. Lisäksi on perehdytty tutkimuksiin hautomotoimin-nan vaikuttavuudesta ja kriittisistä menestystekijöistä. Tutkimus on lähestymistavaltaan laadullinen case-tutkimus. Käytännössä työ to-teutettiin kyselytutkimuksena haastattelemalla kymmentä pietarilaista, pienen ICT-alan yrityksen johtajaa. Haastatteluiden perusteella kohdeyrityksen hautomokonseptia ei ole mahdollista siirtää suoraviivaisesti venäläiseen toimintaympäristöön. Kulttuurierot maiden välillä ovat merkittävät, eikä niitä ole lyhyellä tai keskipitkällä aikavälillä mahdollista poistaa. Etenkin yleinen luottamuksen puute vaikeuttaa konseptin implementointia. Alkavien ICT-yritysten haasteet ovat pitkälti samoja rajan kummallakin puolen. Rahoituksen puute ja ongelmat myynti- ja markkinointiosaamisessa tulivat haas-tatteluissa vahvasti esille. Liiketoimintaosaamisessa on paljon parannettavaa. Ensimmäisiä toteutettavaksi suositeltuja palveluita ovat siten yrittäjävalmennus ja myynnin ja markkinoinnin työpaja. Lopuksi voi todeta, että useille kohdeyrityksen tarjoamille yksittäisille palveluille on selkeä tarve. Siihen, mitä käytännössä on mahdollista ja/tai kannattavaa toteuttaa, ei oteta tässä tutkimuksessa kantaa.