Thesis (M.S. in Systems Technology (Command, Control and Communications))--Naval Postgraduate School, March 1992. / Thesis Advisors: Sovereign, Michael ; Caldwell, William J. "March 1992." Includes bibliographical references (p. 63-64). Also available in print.

Thesis (Ph. D.)--Ohio State University, 2007. / Title from first page of PDF file. Includes bibliographical references (p. 100-107).

Thesis (M.S. in Computer Science)--Naval Postgraduate School, December 1990. / Thesis Advisor(s): Luqi.; Hughes, Gary. "December 1990." Description based on title screen as viewed on ... DTIC Descriptor(s): Computer programs, prototypes, display systems, costs, reliability, platforms, language, user needs, work stations, resources, message processing, ADA programming language, naval equipment, commonality, theses DTIC Identifier(s): Command control communications, prototypes, software engineering, computer programs, computer aided design, interfaces, communications networks, work stations, theses, real time, ADA programming languages, commonality, connectivity, weapons systems, tactical communications Author(s) subject terms: Computer aided prototyping, C³I systems, hard-real-time systems, user interface, ADA, command and control, prototyping language. Includes bibliographical references (p. 301-304). Also available in print.

Thesis (M.S.)--Naval Postgraduate School, 2004. / Title from title screen (viewed Nov. 10, 2004). "March 2004." Includes bibliographical references (p. 65-69).

Thesis (M.S. in Operations Research) Naval Postgraduate School, September 1996. / Thesis advisor(s): William G. Kemple. "September 1996." Includes bibliographical references (p. 121). Also available online.

Thesis (Ph. D.)--Massachusetts Institute of Technology, Engineering Systems Division, Technology, Management, and Policy Program, 2005. / "May 2005". Includes bibliographical references. Also available via the Internet.

Med inspirasjon frå lekkasja etter «Deepwater Horizon»/Macondobrønnulukka i2010, er det foreslått og modellert eit nytt system for innfanging og oppsamlingav olje rett frå brønnhovudet ved lekkasje på store havdjup. Dette systemetbestår av eit stigerøyr som er senka frå eit farty ned på lekkasjestaden, med einoppsamlingskuppel i nedre enden. Systemet blir tetta ved å påføre eit lågare indretrykk i denne kuppelen enn det hydrostatiske havbotntrykket, slik at koplingamellom kuppelen og havbotnen blir hydrodynamisk foresgla.Denne modellen, som også innheld ein grov modell for heile brønnen, gjennomgårdatasimuleringar, kor han er diskretisert med karakteristikkmetoden.Alle simuleringane er i 1D, einfase. Det er lagt hovudvekt på oppstarten avsystemet. Som plattform for datasimuleringane er MATLAB nytta, og alle simuleringarer gjort på ei 64-bits bærbar datamaskin.Det viser seg at den vanskelegaste delen av oppstarten er tida frå strøyminga istigerøyret er stilleståande, til trykket i oppsamlingskuppelen synk under brønnhovudtrykket,slik at dei to systema blir eitt. Ei løysing på dette ser ut til å vereein sakte, liten, ikkjelineær senking av stigerøyrets topptrykk i to steg, først tilforsegling og samanslåing er oppnådd. Etter dette blir systemet meir medgjørleg,og kan enkelt påførast kva sluttrykk ein treng for å få oppsamlingskuppelen til åsetje seg i havbotnen.

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<p>Today’s electrical transmission & distribution systems, are facing a number of challenges related to changing environmental, technical and business factors. Among these factors are, increased environmental restrictions leading to higher share of production from renewable and uncontrollable sources as well as local environmental concerns regarding construction of new transmission and distribution lines. The re-regulation of the electricity market has created a dynamic environment in which multiple organizations have to coordinate and cooperate in the operation and control of the power system. Finally, the high rate of devel-opment within the ICT field is creating many new opportunities for power system opera-tion and control, thanks to introduction of new technologies for measurement, communi-cation and automation.</p><p>As a result of these factors, Wide Area Monitoring and Control (WAMC) systems have been proposed. WAMC systems utilize new ICT based technologies to offer more accurate and timely data on the state of the power system. WAMC systems utilize Phasor Measure-ment Units (PMUs) that have higher data rates and are time synchronised using, GPS satel-lites. This allows synchronized observation of the dynamics of the power system, making it possible to manage the system at a more efficient and responsive level and apply wide area control and protection schemes. The success WAMC systems, on the other hand, are largely dependent on the performance of the Information and Communication Technology (ICT) infrastructure that would support them.</p><p>This thesis investigates the requirements on, and suitability of the ICT systems that support WAMC systems. This was done by identifying WAMC applications and the elicitation of their requirements. Furthermore, a set of simulation projects were carried out to determine the communication system characteristics such as delay and the impact of this delay on the WAMC system.</p><p>This thesis has several contributions. First, it provides summary and analysis of WAMC application priorities and requirements in the Nordic region. Secondly it provides simula-tion based comparison and evaluation of communication paradigms for WAMC systems. The research documented in this thesis addresses these paradigms by providing a compari-son and evaluation through simulation. Thirdly, the thesis provides insight to the possible sources of delay in WAMC architecture and the impact of these delays on data quality specifically data incompleteness. This provides insight on what applications are important to practitioners and what is the expected performance of these applications, as seen from the power system control and operation point of view.</p>

<p>Safe winter navigation is a hot topic. Not only is the traffic density increasing but theenvironmental considerations are also getting bigger. An oil leakage from a big oiltanker can be of catastrophic proportions in the wrong area and more trafficincreases the risk of an accident. A project that aims for safer winter navigation isSafeWIN. The aim of this project is to develop a forecasting system for compressiveice and thus make winter navigation safer.This thesis is part of above mentioned project and aims to investigate what influenceice compression and ice class has on winter navigation. Vessels are exclusivelyAFRAMAX size tankers sailing on Primorsk in the Gulf of Finland during 2006. Transitdata comes from AIS tracks recorded by the Swedish Maritime Administration. Adatabase with tanker transits has been created and this information is the source forthe studies in this thesis. Included in the database are wind data, ice particulars andtransit information such as speed, and time at different activities during the transit.Average values for a transit has been investigated for comparison and to get a pictureof an average transit.Velocity, waiting time and time with assisting icebreaker are parameters that arebelieved to show how a tanker performs in winter navigation. These parameters arecompared with ice compression and ice class separately to see if there is acorrelation. Ice compression has also been investigated for correlation towards windforce to see if stronger wind generates stronger compression.Using the velocity in different ice compressions an estimate of ice resistance that stemfrom ice compression has been extracted by means of Lindqvist’s formula.</p>