نتایج جستجو برای: submarine

تعداد نتایج: 4495  

2014
Benjamin B. Weybrew

Exploratory in nature, this study was designed to identify some of the personality trait configurations and attitude change patterns related to individual differences in cold coping capacity (CCC). Three enlisted marines participated in a week-long cold weather North Atlantic Treaty Organization (NATO) combat exercise in upper Norway. The Minnesota Multiphasic Personality Inventory (MMPI) was a...

1997
Ulla Bergsten Johan Schubert Per Svensson

127 Bergsten Abstract We describe how specialized database technology and data analysis methods were applied by the Swedish defense to help deal with the violation of Swedish marine territory by foreign submarine intruders during the Eighties and early Nineties. Among several approaches tried some yielded interesting information, although most of the key questions remain unanswered. We conclude...

2007
Luc Jaulin Frédéric Dabe Alain Bertholom Michel Legris

This paper proposes a set approach for the simultaneous localization and mapping (SLAM) in a submarine context. It shows that this problem can be cast into a constraint satisfaction problem which can be solve efficiently using interval analysis and propagation algorithms. The efficiency of the resulting propagation method is illustrated on the localization of submarine robot, named Redermor. Th...

1998
Per Svensson

This paper deals with the problem of tracking the motion of a submarine in shallow waters using adaptive planning for the positioning of passive sonobuoys. A computational model and an interactive simulation system were developed and validated. The system is capable of simulating a submarine hunt using multi-sensor data fusion of signals from passive sonobuoys and of computing a near-optimal pl...

2017
Ulla Fernandez-Arcaya Eva Ramirez-Llodra Jacopo Aguzzi A. Louise Allcock Jaime S. Davies Awantha Dissanayake Peter Harris Kerry Howell Veerle A. I. Huvenne Miles Macmillan-Lawler Jacobo Martín Lenaick Menot Martha Nizinski Pere Puig Ashley A. Rowden Florence Sanchez Inge M. J. Van den Beld

Citation: Fernandez-Arcaya U, Ramirez-Llodra E, Aguzzi J, Allcock AL, Davies JS, Dissanayake A, Harris P, Howell K, Huvenne VAI, Macmillan-Lawler M, Martín J, Menot L, Nizinski M, Puig P, Rowden AA, Sanchez F and Van den Beld IMJ (2017) Ecological Role of Submarine Canyons and Need for Canyon Conservation: A Review. Front. Mar. Sci. 4:5. doi: 10.3389/fmars.2017.00005 Ecological Role of Submarin...

2014
Catherine Theys Jan Wouters Pol Ghesquière

Advanced Magnetic Resonance Imaging (MRI) techniques such as Diffusion Tensor Imaging (DTI) and resting-state functional MRI (rfMRI) are widely used to study structural and functional neural connectivity. However, as these techniques are highly sensitive to motion artifacts and require a considerable amount of time for image acquisition, successful acquisition of these images can be challenging...

2017
Rachel M Lance Lucas Stalcup Brad Wojtylak Cameron R Bass

The submarine H.L. Hunley was the first submarine to sink an enemy ship during combat; however, the cause of its sinking has been a mystery for over 150 years. The Hunley set off a 61.2 kg (135 lb) black powder torpedo at a distance less than 5 m (16 ft) off its bow. Scaled experiments were performed that measured black powder and shock tube explosions underwater and propagation of blasts throu...

2003
Yuichi Shirasaki

Seafloor observation system using the underwater cable is one of the most reliable ways to provide high-speed data transmission and continuous power feeding to underwater devices. Recent evolution in the optical submarine cable and Internet technology make it possible to develop a versatile scientific submarine cable network. IEEE OES (Institute of Electrical and Electronics Engineers, Oceanic ...

2013
Wei Li Yongjie Pang Jianguo Lin Xiao Liang

As the oil spill models are usually based on the sea surface and few researches are for submarine oil spill nowadays, the simulation for submarine pipeline oil spill is discussed by FLUENT to forecast the trajectory of oil. The coupling of pressure and velocity under unsteady-state condition is solved by pressure implicit with splitting of operator’s algorithm and the boundary condition of nonl...

2015
Marcelo H. Garcia

Our objective is to improve our understanding of the genesis of large-scale bed forms similar to those observed in various submarine settings, and thought to be created by both confined and laterallyspreading turbidity currents and related dense underflows in continental slopes and rises. Two types of bed forms are the main focus of this work. First, slope gullies, which are parallel, evenly-sp...

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