GPRS/EDGE Session Tracing and Analysis in Abis and AGPRS Interfaces

Efficient problem solving in cellular networks is important when enhancing the network performance and liability. Analysis of calls and packet switched sessions in protocol level between the network elements is an important part of this process. They can provide very detailed information about error situations which otherwise would be difficult to recognise. In this thesis we seek solutions for monitoring GPRS/EDGE sessions in two specific interfaces simultaneously in such manner that all information important to the users will be provided in easily understandable form. This thesis focuses on Abis and AGPRS interfaces of GSM radio network and introduces a solution for managing the correlation between these interfaces by using signalling messages and common parameters as linking elements. ~: Finally this thesis presents an implementation of GPRS/EDGE session monitoring application for Abis and AGPRS interfaces and evaluates its benefits to the end users. Application is implemented as a part of Windows based 3G/GSM network analyser.

Track of HSMS Sophia tracing the extent of navigable water along the main northern ice between Spitzbergen and Greenland September 1868 : also showing the nature of the ice and temperature and depth of the sea

Kartta kuuluu A. E. Nordenskiöldin kokoelmaan

Tracing Innovation Practices in Seaports: the Ports of Klaipeda and Stockholm as Case Studies

This study explores variegated means through which ports have become increasingly entangled in the planning logic of neoliberal innovation-driven economy. The research topic belongs to the academic disciplines of economics and human geography. The aim of the thesis is to analyse how the notion of innovation, adopted in a variety of supranational and national port policy documents, is deployed in operational port environment in two different ports of the Baltic Sea Region: the port of Stockholm, Sweden, and the port of Klaipeda, Lithuania. This novel innovation agenda is visible in several topics I examine in the study, that is, port governance, environmental issues, and seaport – port-city interface. The gathered primary source material on port policy documents, strategies, development planning documents and reports is analysed by utilizing the qualitative content analysis research method. Moreover, the empirical part of the case study, that is, tracing innovation practices in mundane port activities is based on collected qualitative semi-structured interviews with port authorities in Klaipeda and Stockholm, researchers and other port experts. I examine the interview material by employing the theoretical reading research method. In my analysis, I have reframed port-related policy development by tracing and identifying the port transformation from “functional terminals” to “engines for growth”. My results show that this novel innovation-oriented rhetoric imprinted in the narrative “engines for growth” is often contested in daily port practices. In other words, my analysis reveals that the port authorities’ and other port actors’ attitudes towards innovations do not necessarily correspond to the new narrative of innovation and do not always “fit” within a framework of neoliberal economic thinking that glorifies the “culture of innovations”. I argue that the ability to develop innovative initiatives in the ports of Klaipeda and Stockholm is strongly predetermined by local conditions, a port’s governance model, the way port actors perceive the importance of innovations per se, demand factors and new regulations.

“IF ONLY I COULD�? ~ “THERE IS ALWAYS A LOOPHOLE"? Hope and hopelessness experienced by the severely depressive and nondepressive

The aim of this research was to structure a conceptual model of hope and hopelessness based on dictionary definitions, and to verify this model on the basis of the experiences of the severely depressive and non-depressive elderly. This research has produced a substantive theory of hope and hopelessness which is based on the experiences of the depressive and non-depressive elderly, and on the concept analysis of hope and hopelessness based on English dictionary definitions. The patients who participated in the research were 65 years old and older men and women (n=22) who had been admitted to a psychiatric hospital because of major depression, and another group: the non-depressive elderly (n=21), who were recruited from the pensioners’ clubs. The data were collected in interviews using the Clinical Assessment Tool, developed by Farran, Salloway and Clark (1990) and Farran, Wilken and Popovich (1992), and it produced 553 pages of written text, which were analysed using the ATLAS/ti programme. ATLAS/ti is a tool for analysing qualitative data and is based on Grounded Theory. The medical and nursing records of the depressive elderly completed source triangulation. The concept analysis of hope and hopelessness was made on the basis of the definitions of English dictionaries (n=103), using semantic analysis and the ATLAS/ti programme. The most important hope-promoting factors were human relations, health and managing in everyday living. Autonomy, self-determination and feeling of security were highly appreciated among the elderly. Hopelessness, on the other hand, was most often associated with the same factors: human relations, health and everyday living. Especially, losses of significant others were experienced as strongly hope-diminishing. Old age had brought freedom from duties concerning others, but now, when you finally had an opportunity to enjoy yourself, you could not accomplish anything; you were clasped in the arms of total inability, depression had come. The most obvious difference in the life course of the depressive and nondepressive elderly was the abundance of traumatic experiences in the childhood and youth of the depressive elderly. The continuous circulation of fearful thoughts was almost touchable, and suicidality was described in connection with these thoughts. You were afraid to be awake and also to go to sleep. Managing day by day was the goal. The research produced the Basic Social Process (BSP) of hope: achieving - maintaining - losing, which expresses a continuous balancing between Being without and Being with. The importance of the object of hope was combined with the amount of hope and disappointment. The process of approaching defined the realisation of hope and the process of withdrawal that of losing. Joy and security versus grief and insecurity defined the Being with and Being without. Two core categories were found. The first one “If only I could�? reflects lack of energy, lack of knowledge, lack of courage and lack of ability. The other one “There is always a loophole�? reflects deliberate tracing of possibilities and the belief in finding solutions, and managing.

Aikuisten mediatajun jäljillä

Summary: Tracing media awareness in adults

Tuotelaskennan kehittäminen metalliteollisuusyrityksessä.

Työssä esitetään laskentamalli tuotekohtaisten kustannusten laskemiseksi teräsrakentamisen tuotteita valmistavan ja markkinoivan divisioonan tarpeisiin. Mallissa kustannuksia lasketaan standardikustannuslaskennan ja lisäyslaskennan periaatteita hyödyntäen. Laskentamalli liittyy esimerkkiyrityksen tuote- ja asiakaskannattavuuden kehittämishankkeeseen. Mallissa tuotteille kohdistetaan materiaalin ja prosessoinnin kustannuksia sekä pääoman kustannuksia poistojen osalta. Tuotelaskennan mallin avulla lasketaan kustannuksia muutamille esimerkkituotteille. Tarkastelua ei kuitenkaan tehdä divisioonan erikoistuotteiden osalta. Saadut laskentatulokset noudattavat vallitsevia käsityksiä liiketoiminta-alueen tuotteiden kustannusrakenteesta. Samalla malli antaa kuitenkin tarkemman kuvan kustannusten todellisesta kohdistumisesta tuotteille. Kattavan laskenta-aineiston puuttuessa työn merkittävimpänä tuloksena voidaan kehittämishankkeen tässä vaiheessa pitää yhtenäisen laskentamallin saamista tukemaan tuotekustannusten laskemista koko divisioonan alueella. Malli ei kuitenkaan kuvaa kustannusten kohdistumista tuotteille parhaalla mahdollisella tavalla. Jatkokehityshankkeissa tulisikin pohtia kustannuskohdistimien ja työssä tuotteelle kohdistamatta jätettyjen kustannuserien käsittelyä sekä divisioonan vakiotuotteiden että erikoistuotteiden osalta.

Trust as a source of sustainable competitive advantage

Tämän pro gradu -tutkielman tarkoituksena oli selvittää, miten luottamus vaikuttaa yrityksen kilpailuetuun. Luottamus on monitieteellinen ilmiö joka on saanut varsin paljon huomiota viimeaikaisissa tutkimuksissa. Myös jatkuvasti kehittyvässä yrityksen teoriassa yrityksen kilpailukyky ja sen pysyvyys ovat olleet mielenkiinnon kohteena. Luottamuksen ja kilpailuedun suhdetta on tästä huolimatta tutkittu vain vähän. Luottamus on nähty ikään kuin implisiittisesti yrityksen teoriassa, mutta ei eksplisiittisesti. Tämä tutkielma analysoi luottamuksen ja yrityksen kilpailukyvyn teorioita sekä näiden yhtymäkohtia. Tutkimuksen lopputuloksena esitellään nämä teoriat toisiinsa yhdistävä malli. Tutkielma on teoreettinen ja osin käsiteanalyyttinen, tutkimusote on syntetisoiva ja exploratiivinen, sillä se pyrkii osoittamaan aiemmin erillisten teorioiden yhtymäkohdat. Esiteltävä malli osoittaa, että luottamuksen ja yrityksen pysyvän kilpailuedun teoriat voidaan liittää toisiinsa, tärkeimmän yhdistävän tekijän ollessa yhteistyökyvykkyys. Luottamus on yhteistyökyvykkyyden välttämätön ennakkoedellytys. Kyky tehdä yhteistyötä on, paitsi jo itsessään erittäin tärkeä dynaaminen kyvykkyys, myös muiden dynaamisten kyvykkyyksien luomista ja hyväksikäyttöä edesauttava tekijä. Sikäli yhteistyö voidaan nähdä yrityksen teoriassa muut dynaamiset kyvykkyydet mahdollistavana meta-kyvykkyytenä ja luottamus sen edellytyksenä.

Sähköisten kuljetustietojen vaikutukset päivittäistavarakaupan pitkässä arvoketjussa

Tutkielman tavoitteena on esittää kustannustehokkaita tapoja lähetystoimintojen ja kuljetustietojen käsittelyyn päivittäistavarakaupan logistiikkakeskuksessa. Tutkielmassa kuvataan case-yrityksen lähettämö- ja kuljetustoimintojen sekä lähtevän tavaravirran seurannan ja rahtilaskutuksen nykytilanne. Tutkimusmenetelmänä on käytetty case-yrityksen avainhenkilöiden teemahaastatteluja sekä erillistä haastattelututkimusta kahdeksalle suurimmalle case-yrityksen käyttämälle kuljetusliikkeelle. Työssä esitellään keskeisimpien kuljetustietojen ja lähettämötoimintojen sähköistämisen edellytyksiä sekä niiden toteutusmahdollisuuksia. Koska lähtevän tavaravirran käsittely manuaalisesti aiheuttaa ylimääräisiä virheitä ja tehottomuutta pitkän arvoketjun eri vaiheissa työllistäen lähettämön, kuljetusliikkeiden, terminaalien ja myymälöiden työntekijöitä, on tutkielmassa esitelty keskeisimmät keinot tehostaa ja automatisoida lähtevien kuljetusyksiköiden käsittelyä. Ratkaisut pohjautuvat lähtevien kuljetusyksiköiden yksilöintiin ja seurantaan. Yksiköiden käsittelyä tehostetaan automatisoimalla yksiköiden tunnistamista ja tiedonsiirtoa. Käytettäviksi työkaluiksi on valittu viivakoodit ja tarvittavat lukijat yksiköiden tunnistamiseen. Sähköisellä rahtikirjalla pyritään paperittomaan lähettämötoimintaan ja sitä kautta automatisoimaan rahtilaskutusta ottamalla käyttöön laskuton maksu. Kuljetustietojen sähköistämisellä voidaan saavuttaa mittavat kustannussäästöt pitkässä arvoketjussa.

Mursun ja norsun jäljillä

Summary: Tracing the etymology of mursu 'walrus' and norsu 'elephant'

Simulations of 3D Stripixel Detectors

Large Hadron Collider (LHC) is the main particle accelerator at CERN. LHC is created with main goal to search elementary particles and help science investigate our universe. Radiation in LHC is caused by charged particles circular acceleration, therefore detectors tracing particles in existed severe conditions during the experiments must be radiation tolerant. Moreover, further upgrade of luminosity (up to 1035 cm-2s-1) requires development of particle detector’s structure. This work is dedicated to show the new type 3D stripixel detector with serious structural improvement. The new type of radiation-hard detector has a three-dimensional (3D) array of the p+ and n+ electrodes that penetrate into the detector bulk. The electrons and holes are then collected at oppositely biased electrodes. Proposed 3D stripixel detector demonstrates that full depletion voltage is lower that that for planar detectors. Low depletion voltage is one of the main advantages because only depleted part of the device is active are. Because of small spacing between electrodes, charge collection distances are smaller which results in high speed of the detector’s response. In this work is also briefly discussed dual-column type detectors, meaning consisting both n+ and p+ type columnar electrodes in its structure, and was declared that dual-column detectors show better electric filed distribution then single sided radiation detectors. The dead space or in other words low electric field region in significantly suppressed. Simulations were carried out by using Atlas device simulation software. As a simulation results in this work are represented the electric field distribution under different bias voltages.

RTOS Framework for Real-Time Control System

This thesis is done as a complementary part for the active magnet bearing (AMB) control software development project in Lappeenranta University of Technology. The main focus of the thesis is to examine an idea of a real-time operating system (RTOS) framework that operates in a dedicated digital signal processor (DSP) environment. General use real-time operating systems do not necessarily provide sufficient platform for periodic control algorithm utilisation. In addition, application program interfaces found in real-time operating systems are commonly non-existent or provided as chip-support libraries, thus hindering platform independent software development. Hence, two divergent real-time operating systems and additional periodic extension software with the framework design are examined to find solutions for the research problems. The research is discharged by; tracing the selected real-time operating system, formulating requirements for the system, and designing the real-time operating system framework (OSFW). The OSFW is formed by programming the framework and conjoining the outcome with the RTOS and the periodic extension. The system is tested and functionality of the software is evaluated in theoretical context of the Rate Monotonic Scheduling (RMS) theory. The performance of the OSFW and substance of the approach are discussed in contrast to the research theme. The findings of the thesis demonstrates that the forged real-time operating system framework is a viable groundwork solution for periodic control applications.

Toimintolaskenta tuotehallinnan tukena

Tämän tapaustutkimuksen päätavoitteina on luoda toimintolaskentamalli kohdeyritykselle ja testata toimintolaskennan soveltuvuutta pilottiprojektilla, joka toteutetaan vain pienelle osalle tuotteista. Toimintolaskentaprojektin tavoitteena on tarkentaa tuotteiden kustannuslaskentaa ja näin tukea yrityksen päätöksentekoa tuotehallinnan päätöksissä. Tutkimuksen tuloksena pilottiprojekti on vahvistanut ennakkokäsityksiä laskentakohteina olleiden tuotteiden osalta. Implementointiprosesseilla on sekä inhimillisiä että teknisiä ongelmia. Resurssikustannusten kohdistaminen asetettiin projektin tärkeimmäksi tekniseksi ongelmaksi. Pilottiprojekti keskittyy lähinnä laskennan tekniseen toteutukseen, mutta kattavampi muutosprojekti vaatii muutosjohtajuutta ja keskittymistä inhimillisiin tekijöihin. Pilottivaiheessa tärkein inhimillinen ongelma on saavuttaa johdon tuki ja osallistuminen projektiin. Toimintolaskentaprojekti onnistui kohdeyrityksessä hyvin ja johdon tuki onnistuttiin saavuttamaan. Tutkimuksen tuloksena nähdään toimintolas-kennan hyödyttävän tuotehallintaa ja tutkimuksen seurauksena toimintolaskentaprojektia jatketaan kattamaan koko tuotevalikoima. Yrityksessä havaittiin laskentaprojektin aikana myös toiminnan kehityskohteita, jotka vaativat tarkempaa tarkastelua toimintoanalyysin avulla.

Promoting Programming Learning. Engagement, Automatic Assessment with Immediate Feedback in Visualizations

The skill of programming is a key asset for every computer science student. Many studies have shown that this is a hard skill to learn and the outcomes of programming courses have often been substandard. Thus, a range of methods and tools have been developed to assist students’ learning processes. One of the biggest fields in computer science education is the use of visualizations as a learning aid and many visualization based tools have been developed to aid the learning process during last few decades. Studies conducted in this thesis focus on two different visualizationbased tools TRAKLA2 and ViLLE. This thesis includes results from multiple empirical studies about what kind of effects the introduction and usage of these tools have on students’ opinions and performance, and what kind of implications there are from a teacher’s point of view. The results from studies in this thesis show that students preferred to do web-based exercises, and felt that those exercises contributed to their learning. The usage of the tool motivated students to work harder during their course, which was shown in overall course performance and drop-out statistics. We have also shown that visualization-based tools can be used to enhance the learning process, and one of the key factors is the higher and active level of engagement (see. Engagement Taxonomy by Naps et al., 2002). The automatic grading accompanied with immediate feedback helps students to overcome obstacles during the learning process, and to grasp the key element in the learning task. These kinds of tools can help us to cope with the fact that many programming courses are overcrowded with limited teaching resources. These tools allows us to tackle this problem by utilizing automatic assessment in exercises that are most suitable to be done in the web (like tracing and simulation) since its supports students’ independent learning regardless of time and place. In summary, we can use our course’s resources more efficiently to increase the quality of the learning experience of the students and the teaching experience of the teacher, and even increase performance of the students. There are also methodological results from this thesis which contribute to developing insight into the conduct of empirical evaluations of new tools or techniques. When we evaluate a new tool, especially one accompanied with visualization, we need to give a proper introduction to it and to the graphical notation used by tool. The standard procedure should also include capturing the screen with audio to confirm that the participants of the experiment are doing what they are supposed to do. By taken such measures in the study of the learning impact of visualization support for learning, we can avoid drawing false conclusion from our experiments. As computer science educators, we face two important challenges. Firstly, we need to start to deliver the message in our own institution and all over the world about the new – scientifically proven – innovations in teaching like TRAKLA2 and ViLLE. Secondly, we have the relevant experience of conducting teaching related experiment, and thus we can support our colleagues to learn essential know-how of the research based improvement of their teaching. This change can transform academic teaching into publications and by utilizing this approach we can significantly increase the adoption of the new tools and techniques, and overall increase the knowledge of best-practices. In future, we need to combine our forces and tackle these universal and common problems together by creating multi-national and multiinstitutional research projects. We need to create a community and a platform in which we can share these best practices and at the same time conduct multi-national research projects easily.