Velocity estimation of moving ships using C-band SLC SAR data

A new algorithm for the velocity vector estimation of moving ships using Single Look Complex (SLC) SAR data in strip map acquisition mode is proposed. The algorithm exploits both amplitude and phase information of the Doppler decompressed data spectrum, with the aim to estimate both the azimuth antenna pattern and the backscattering coefficient as function of the look angle. The antenna pattern estimation provides information about the target velocity; the backscattering coefficient can be used for vessel classification. The range velocity is retrieved in the slow time frequency domain by estimating the antenna pattern effects induced by the target motion, while the azimuth velocity is calculated by the estimated range velocity and the ship orientation. Finally, the algorithm is tested on simulated SAR SLC data.

Arctic searching expedition: a journal of a boat-voyage through Rupert's Land and the Arctic Sea, in search of the discovery ships under command of Sir John Franklin. With an appendix on the physical geography of North America. By Sir John Richardson ...

v. 1

The botany of the Antarctic voyage of H.M. discovery ships Erebus and Terror in the Years 1839-1843 :under the command of Captain Sir James Clark Ross /by Joseph Dalton Hooker.

v.1 Text (1844)

The purpose and use of passenger ships in 2058 - Future scenarios generated by the Delphi method

The purpose of the thesis is to generate scenarios of future purposes and of use of ships, suitable for STX Finland Cruise Oy to design and build, over a 50 year time span by applying the Delphi method and an open innovation approach in a future workshop. The scenarios were mapped out with help of two Delphi survey rounds and one future workshop. The number of participants in both surveys and the workshop was some twenty experts in each, representing various fields. On the basis of the first survey round, four different subject areas were selected for analysis: purposes for the use of ships; energy efficiency of cruises and ships; cost efficiency of sea transportation and vacation; and the views and expectations of the customers in the future. As a result of the future workshop, four different themes were established, which were studied further during the second Delphi round. The themes are future service and operation concepts; versatile uses of the space in ships; communication of environmental benefits of ships, future energy solutions and social interaction between passengers onboard. In addition to generating the scenarios, further aim of the thesis is to implement the Delphi method and workshop activity as foresight tools for STX Europe and to produce a chart of a future shipbuilding foresight community to can serve the open innovation processes in the maritime cluster as a whole.

Raise All Ships: Cooperative Repository Strategies in a Boot-Strap Culture

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

Postimerkit merisotataidon dokumentteina : Britannian ja Saksan laivastojen varustelu maailmansotien välisenä aikana

Merisodassa tapahtunut muutos – erityisesti konevoiman syrjäyttäessä purjeet ja raudan korvatessa puumateriaalin 1800-luvun loppupuolella – johti nykypäivänäkin merkittäviin merisodan teoreettisiin tarkasteluihin. Teorioihin pohjautuneet merisotataidon yleisperiaatteet saivat ensimmäisen maailmansodan aikana käytännön testauksensa. Voittajat ja häviäjät analysoivat taistelut sekä maailmalla vallinneen ripeän teknisen kehityksen, minkä seurauksena laivastojen varustelu kiihtyi uudestaan valtapolitiikan tueksi. Maailmansotien välisenä aikana pyrittiin kansainvälisin sopimuksin säätelemään suurten laivastojen, kuten Britannian, Ranskan, Italian, Japanin ja Yhdysvaltojen varustelukilpailua. Versaillesin rauhansopimus rajoitti samanaikaisesti Saksan merivoimien kokoa. Tässä työssä tutkitaan Britannian ja Saksan merivoimien varustelua ja merisotataidon kehittymistä maailmansotien välisenä aikana. Merisotataidon kehittymisen tarkastelu tapahtuu postimerkkien avulla. Postimerkki syntyi Englannissa vuonna 1840 ja sen käyttö yleistyi ympäri maailman lähes samanaikaisesti konevoimaa käyttäneiden laivojen kanssa. Postimerkkien kuva-aiheet olivat aluksi valtioiden päämiehiä, heraldiikkaa, maisemia tai abstrakteja aiheita. Vasta 1900-luvun alkupuolella kuva-aiheina saattoi olla lähes mitä vain, myös sotalaivojen kuvia. Postimerkkikokoelmastani erottuu tutkimusaiheeseen 335 merkkiä. Britannian ja Saksan kansallisarkistojen alkuperäislähteiden ja tutkimuskirjallisuuden dokumenttianalyysiin perustuvaa merisotataidon moninaista kehitystä verrataan tutkimuksessani postimerkkien kuva-aiheisiin ja niiden yksityiskohtiin 3 300 kertaa. Tällä menettelyllä pyrin selvittämään voiko postimerkkejä käyttää ja pitää merisotaidon kehityksen kattavina dokumentteina. Postimerkeissä satunnaisiksi jääneet virheet tai propaganda eivät vähennä merisotataidon kehityksen kuvaamisen dokumenttiarvoa. Postimerkkien sotalaivoihin liittyvät kuvat kattavat muutamaa laivaluokkaa lukuunottamatta molempien maiden kaikki taistelualuslajit- ja luokat. Postimerkeistä voidaan nähdä vanhat sotalaivat, niiden peruskorjaukset ja uudet luokat lentotukialuksista sukellusveneisiin. Alusten kuvat voidaan liittää Britannian kansainyhteisön muuttuneisiin strategisiin ja taktisiin tavoitteisiin niin Atlantilla kuin Kaukoidässä. Saksan merivoimien nousu Versaillesin rauhanehtojen rajoituksista ja lopulta pyrkimys Britannian kauppamerenkulun tuhoajaksi välittyy myös postimerkeistä. Yleinen sotatekninen kehitys, lentoneiden tulo merisotanäyttämölle ja aikanaan kansainvälisten tonnistorajoitusten poistuminen näkyvät postimerkeissä. Kokopostimerkin historian aikana vuoteen 2012 mennessä purjeettomien, nykyaikaisten sotalaivojen kuvia on julkaistu noin 3 350 postimerkillä, jotka on koottu Maailman suurin laivasto-osasto -postimerkkikokoelmaani noin 35 vuoden aikana

Design and Programming of Cathodic Protection for SHIPS

In order to minimize the risk of failures or major renewals of hull structures during the ship's expected life span, it is imperative that the precaution must be taken with regard to an adequate margin of safety against any one or combination of failure modes including excessive yielding, buckling, brittle fracture, fatigue and corrosion. The most efficient system for combating underwater corrosion is 'cathodic protection'. The basic principle of this method is that the ship's structure is made cathodic, i.e. the anodic (corrosion) reactions are suppressed by the application of an opposing current and the ship is there by protected. This paper deals with state of art in cathodic protection and its programming in ship structure

Sailing through stone. Carved ships and the rockface at Revheim, southwest Norway

The relationship between rock art and the material qualities of the rock surface on which it is executed is investigated. The case study of Revheim, Rogaland, Southwest Norway, is the starting-point for a discussion on the way in which the contours of the rock, quartz outcrops and the flow of water across the rock surface affect the placement of images on the rock. It is argued that a fuller examination of the interrelationship between rock and rock art provides a more coherent interpretation of rock art images.

Aprendizagem da língua japonesa apoiada por ferramentas computacionais: estudo e desenvolvimento do jogo Karuchā Ships Invaders

The use of technology tools for teaching and learning has grown increasingly in our daily life. In this context, a branch that has had tremendous growth is the area of teaching and learning language through computational tools. The study of CALL (Computer Assisted Language Learning), accomplished in this research, aims to evaluate existing tools in this context, focused specifically on the Japanese language; and from this study, accomplish the development of a new computational tool that can assist teaching/learning of the Japanese language. As results, we present a wide survey on the subject in various technologies/devices, as well as the complete development process of a new tool, the Karuchā Ships Invaders game, that proposes to teach basic concepts of the language, blended with entertainment, and still, focusing on the Brazilian students of Japanese language audience. We will present all the concept phases of the game and its evolution through the research, as well as an interface evaluation. Still, we present proposal and validation of a method to evaluate motivational aspects of computational tools with educational focus, and results extracted from an experiment accomplished with prospective users

Waves generated by two or more ships in a channel

The numerical model FUNWAVE+Ship simulates the generation and propagation of ship waves to shore, including phenomena such as refraction, diffraction, currents and breaking of waves. The interaction of two wave trains, generated by ships moving either in the same direction at different speeds or in opposite directions, is studied. Focus is given to the wave orbital velocities and to the free surface pattern.

Tourist Cruise Ships and the Trade in Services: Recent Trends in Countries of the Caribbean Basin

This issue of the Bulletin reviews the main trends of trade in goods and services for the countries of the Association of Caribbean States (ACS) in 2004. The strong recovery of trade in goods and the robust expansion of trade in services are highlighted, emphasizing the increase in services as a proportion of total exports for the smaller Caribbean economies, which may even exceed 80%.A detailed analysis of the performance of the tourism component, especially travel, showed that in 2004 there was a boom in cruise ship arrivals, a situation which poses a real challenge for some islands in terms of ensuring a permanent flow of tourists and making use of the main comparative advantages -sun, sea and beaches- and possible linkages with the rest of the economy such as the hotel industry, restaurants, business and entertainment centres, guided excursions, transport, yachting, and others. In some islands, the ratio of cruise passengers to inhabitants is particularly high, and can reach a significant factor of about 11 tourists for every inhabitant in the Bahamas, 8 in Aruba, 7 in Antigua and Barbuda and 5 in Dominica, and around 4 for a sample of eleven countries.One of the main challenges for a number of Caribbean islands is how to capitalize on such linkages by developing sustainable tourism that minimizes the possible adverse impacts on the environment and the everyday life of the citizens.

STOWING AWAY ON SHIPS THAT PASS IN THE NIGHT: SCLEROBIONT ASSEMBLAGES ON INDIVIDUALLY DATED BIVALVE AND BRACHIOPOD SHELLS FROM A SUBTROPICAL SHELF

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Ultrasonic waves: Bioeffects on yeast cells

Applications of ultrasound were starting from 1912 with the primary objective the detection of icebergs on prevention of maritime accidents. Algae, fish deaths and destruction were observed in the vicinity of sonar that equipped ships and submarines during the First World War.The evolutions of research and studies with ultrasound have big advances following the discovery of piezoelectric transducers in science and technology. As an example we can mention its application in microsurgery, fatigue detection in aerospace mechanics, catalysis sonochemical, biotechnology and others.The work presented here aims to demonstrate the application of ultrasonic in pulsed mode beams in biotechnology with the aim of improving the fermentation of a culture broth containing biological agents. In these experiments we used as ultrasound equipment and oscilator Sonics VCX-600 (20KHz), probe type wave guide. The experiments were conducted in a glass reactor of 200 mL of biomaterial containing cane juice and Saccharomyces cerevisiae in suspension. The parameters analyzed were related to the content Alcohlic (FID gas chromatography), and cell viability (Neubauer chamber), TRS (refractometry). Analysis of results showed that the total production exceeded in irradiated samples compared to normal fermentation (without ultrasound), suggesting additional advantage of ultrasound activation. Lastin Trials 1400 min, showed ethanol production systems 12% more than non-enabled systems. In this context alternatives for ethanol production, bio fuel and many other byproducts of the alcohol industries and chemicals could benefit from the use of ultrasound beams in this range of frequencies.