Increasing activities on high north regions bring about a demand of safety ship navigation. Under severe weather condition considerable amounts of ice may accumulate on marine structures. Ice bridge simulator is of importance in terms of training for qualified maritime personal. The new ice module to fit for additional problem for the ship icing is introduced with low reality into bridge simulator. Regarding this our aim is to develop ice model that calculate ice load on the ship structure and stability change include parameters of air temperature, relative wind speed, wave height etc. As a result of literature survey theoretical and empirical method with its algorithm is studied. The ice thickness on cylinder and plate as a representative element of the structures are calculated as a function of liquid water content, relative wind speed and freezing fraction for simplified ship superstructures to include the effect of trapped water on deck. Since we have to deal with several thousand of element to be calculated every seconds including iteration process, computer should be used, hence new ice model is proposed by using computer language C++. In case study 300 tonnage size coast guard vessel is selected as a model ship. Under assumptions that those external parameters are stable in the duration of simulation, proposed model is validated. As a result proposed model could simulate total ice load and following stability change, with error of rolling period after 20 hours simulation being 0.14 sec compared to full scale measurement.

Syftet: Vi har undersökt sambandet mellan teoretiskt och praktiskt lärande på det fyraåriga sjökaptensprogrammet vid Linnéuniversitetet. Vi inriktade oss på att undersöka huruvida teoretisk kunskap är en förutsättning för att förstaårsstudenterna skall kunna uppfylla förväntade studiemål för den första fartygsförlagda utbildningen. Metod: Vi gjorde en litteraturstudie som omfattade det fyraåriga sjökaptensprogrammet samt tre närbesläktade yrkesutbildningar. I vårt teorikapitel behandlade vi även tre olika typer av handledningsmodeller som samtliga på ett eller annat sätt är applicerbara på nämnda utbildningar.  För att kunna kritiskt granska vår litteraturstudie och för att ta reda på det faktiska förhållandet i frågan genomförde vi fem informantintervjuer. Resultat: Vi har kunnat se en rad likheter i utbildningarnas upplägg mellan teoretiskt och praktiskt lärande samt kunnat urskilja vilka handledningsmodeller som används. Slutsats: Den Grundläggande säkerhetsutbildningen är en förutsättning för studenten att få gå ut på den första fartygsförlagda utbildningen men är inte en förutsättning för att studenten skall kunna uppnå de förväntade studiemålen av densamma. Vi har kunnat konstatera att handledaren och handledarens kunskap och kompetens spelar en mycket central roll för vilka förutsättningar som studenten ges för att kunna uppnå studiemålen för den första fartygsförlagda utbildningen / The purpose: We have investigated the relationship between theoretical and practical learning of the Nautical Science Program(4years) at the Linnaeus University. We focused on examining whether the theoretical knowledge is a prerequisite for the students to meet the expected learning outcomes during the first ship based training. Method: We preformed a literature review covering four different educations. We did also look in to three different types of mentoring models which in one way or another are applicable to those courses. In order to critically examine our literature and to find out the actual condition, we conducted five interviews with informants. Result: Made it possible to see a number of similarities in educational programs approach between theoretical and practical learning and guidance models used. Conclusion: The Basic Safety Training is a prerequisite for students to go out on the ship based training but it is not a prerequisite for achieving the expected learning outcome. We have noted that the supervisor and the supervisor’s knowledge and skills plays a central role for the conditions in which the student is given in order to achieve the study objectives of the first ship based training.

När sjöbefälsstudenter under flertalet perioder befinner sig på fartygsförlagd utbildning innebär det en stor omställning jämfört med livet i land. En tydlig skillnad är möjligheten till kommunikation med nära och kära och då framförallt tillgången till internet. Enligt Internetstiftelsen har 98% av svenskarna tillgång till internet på daglig basis. Den siffran är betydligt lägre när det gäller internettillgång ute på fartyg. Syftet med denna undersökning var att ta reda på och beskriva hur viktig internettillgång ombord är för sjöbefälsstudenter och hur de har upplevt internettillgången under sin tid på praktik. Undersökningens syfte var också att ta reda på vilken hänsyn sjöbefälsstudenter tar till internettillgång vid val av arbetsgivare samt om internettillgång kan bli en avgörande faktor till att sjöbefälsstudenter väljer att avsluta karriären till sjöss. Metoden bestod av en kvantitativ studie i form av en enkätundersökning med fasta svarsalternativ och frågor med graderad inställning på skala ett till sex. Urvalet bestod av 97 respondenter från både sjökapten- och sjöingenjörsprogrammet på en sjöbefälsskola. Efter avslutad enkät sammanställdes rådatan i frekvenstabeller och fördelningen av variabeln redovisades slutligen genom stolpdiagram. Resultatet visade att majoriteten av sjöbefälsstudenterna upplevde internettillgången som bristfällig. Detta gällde både kvaliteten på internettillgången samt dess hastighet. Undersökningen visade också att sjöbefälsstudenterna ansåg att internet ombord var mycket viktigt och att det hade en positiv inverkan på den sociala kontakten med hemmet. Internettillgången påverkade också deras mentala hälsa ombord. Resultatet visade dock att majoriteten av sjöbefälsstudenterna inte tar hänsyn till internettillgång vid val av arbetsgivare och att de heller inte ansåg att internet kunde vara en avgörande faktor för att avsluta sin karriär till sjöss. / When students of the Nautical Science and the Marine Engineering Programmes do their time as Cadets on their ship-based internship, this means a great readjustment from life ashore. One apparent difference is the opportunity to communicate with family and loved ones and especially through the use of the internet. According to the Swedish Internet Foundation 98% of the Swedish population have access to the internet on a daily basis. This number is significantly lower when it comes to seamen on ships. The purpose of this survey was to find out and to describe how the students of both the Nautical Science and the Marine Engineering Programmes experienced the use of the internet during their ship-based internships and also how important the internet is to the students during ship-based internships. The survey’s purpose was also to describe how much the students take the internet in consideration when choosing a future employer. Furthermore the survey aimed to describe if the students considered the internet connection onboard ships as a decisive cause of ending their career at sea. The method consisted of a quantitative study in the form of questionnaires with fixed response alternatives and questions with a graded approach on a scale of one to six. The sample consisted of 97 respondents from the Nautical Science Program and the Marine Engineering Program at a Naval institute. Upon finishing the survey the primary data was compiled in frequency tables and the distribution of the variable was displayed in bar charts. The result showed that the vast majority of the students experienced the internet onboard to be inadequate. This applied to both the connection as well as the speed of the internet. The survey also showed that the students considered the internet to be of great importance onboard and that it had a clear positive impact on their social contact with family ashore. The internet connection also impacted the students’ mental health. However, the result showed that the students did not take the internet onboard into consideration when choosing a future employer. Neither did the students consider the internet to be a decisive cause for ending their career at sea.

Made available in DSpace on 2016-04-28T14:16:13Z (GMT). No. of bitstreams: 1 Armando Pereira Loreto Junior.pdf: 1989486 bytes, checksum: b270828c0f687f19dacbba6800156d40 (MD5) Previous issue date: 2001-06-26 / This research investigates which were the mathematical contents, sequence and manner of exposition taught in the sphere class of Colégio de Santo Antão-OVelho, in Lisbon, during the second half of the 18th century. The current work describes, within the context of that time, the most relevant features of the compendium Trigonometria Plana e Esferica com o Canon Trigonometrico, Linear e Logarithmico, published in 1737. Its author is the Jesuit priest Manoel de Campos, who was one of the teachers of that class. This study reveals interesting approaches made by him, which led to important results, like the correction of the Canon Trigonometrico, and the generation of the logarithmic curve. It was verified that the trigonometry presented by Campos had as its first objective the application to the Nautical Science and Astronomy. However, the author did not present these applications in his book, but promised to show them in another publication, which existence we did not find register of. Because of that, some examples of those applications, included in Arte de Navegar of Manoel Pimentel, were selected and presented in this work / Esta pesquisa investiga quais eram os conteúdos de matemática ensinados, sua ordem seqüencial e a forma de exposição, na aula da esfera do Colégio de Santo Antão-O-Velho da cidade de Lisboa, na primeira metade do século XVIII. O presente trabalho descreve, dentro do contexto científico daquela época, os aspectos mais relevantes do compêndio Trigonometria Plana e Esferica com o Canon Trigonometrico, Linear e Logarithmico, publicado em 1737, cujo autor é o padre jesuíta Manoel de Campos, que foi um dos professores daquela aula. Este estudo revela abordagens interessantes por ele efetuadas, que conduziram a resultados importantes, como a correção do Canon Trigonometrico e a geração da linha logarítmica. Ficou constatado que a trigonometria apresentada por Campos tinha como primeiro objetivo a sua aplicação à náutica e à astronomia. Contudo, o autor não apresentou tais aplicações no seu compêndio, prometendo mostrá-las oportunamente em outra publicação, de cuja existência não encontramos registro. Em virtude disso, alguns exemplos dessas aplicações, contidos na Arte de Navegar de Manoel Pimentel, contemporâneo de Campos, foram selecionados e apresentados neste trabalho