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Artykuły w czasopismach na temat „Drifting objects”

Autor: Grafiati

Data publikacji: 2 czerwca 2025

Data aktualizacji: 31 lipca 2025

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1

Breivik, Øyvind, Arthur A. Allen, Christophe Maisondieu, and Jens Christian Roth. "Wind-induced drift of objects at sea: The leeway field method." Applied Ocean Research 33, no. 2 (2011): 100–109.

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A method for conducting leeway field experiments to establish the drift properties of small objects (0.1–25 m) is described. The objective is to define a standardized and unambiguous procedure for condensing the drift properties down to a set of coefficients that may be incorporated into existing stochastic trajectory forecast models for drifting objects of concern to search and rescue operations and other activities involving vessels lost at sea such as containers with hazardous material. An operational definition of the slip or wind and wave-induced motion of a drifting object relative to th

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MAGOSHI, KAZUYA, LAN KANG, HANBIN GE, TETSUYA NONAKA, TAKANORI HARADA, and KEISUKE MURAKAMI. "AN EVALUATION METHOD FOR LARGE DRIFTING OBJECT-BRIDGE COLLISION DURING TSUNAMI." Journal of Earthquake and Tsunami 07, no. 02 (2013): 1350009. http://dx.doi.org/10.1142/s1793431113500097.

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During the 2011 Great East Japan earthquake occurring at the North–East pacific region, serious secondary disasters caused by collision of drifting containers or ships occurred in various structures when tsunami came. Drifting objects including large ships and tankers come in and out of ports in Japan. Disaster deterioration caused by drifting objects during earthquake and tsunami has become another problem. In this study, it is assumed that a large drifting ship collides with a large-span bridge in the gulf line during a tsunami. To investigate the impact behavior of the bridge during collisi

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Dempster, Tim, and Michael J. Kingsford. "Drifting objects as habitat for pelagic juvenile fish off New South Wales, Australia." Marine and Freshwater Research 55, no. 7 (2004): 675. http://dx.doi.org/10.1071/mf04071.

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The importance of drifting objects to small juvenile pelagic fish was investigated off the coast of New South Wales, Australia. Distance-related and temporal patterns in the distribution of clumps of drifting algae were investigated with 5000 m2 transects at five distances from shore (0.1, 0.5, 1, 5 and 10 km), two to three times per season for 2 years. Juvenile fish associated with drift algae were collected. Clumps of algae, predominantly Sargassum spp., were most abundant in spring, which coincided with the highest abundance of alga-associated post-flexion juvenile fish. Drift algae were al

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4

Riera, Francisco, Amalia Grau, Antonio M. Grau, Elena Pastor, Antoni Quetglas, and Sebastián Pou. "Ichtyofauna associated with drifting floating objects in the Balearic Islands (Western Mediterranean)." Scientia Marina 63, no. 3-4 (1999): 229–35. http://dx.doi.org/10.3989/scimar.1999.63n3-4239.

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Linares, Daniel, and Alex O. Holcombe. "Position Perception: Influence of Motion With Displacement Dissociated From the Influence of Motion Alone." Journal of Neurophysiology 100, no. 5 (2008): 2472–76. http://dx.doi.org/10.1152/jn.90682.2008.

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When humans view a moving object, the spatial lag in perception expected from neural delays may be partially corrected by motion mechanisms biasing perceived position. The drifting-Gabor illusion seems to support this view: the perceived location of a static envelope filled with a moving pattern is shifted in the direction of motion. To test whether this shifting mechanism also extrapolates the position of moving displacing objects, we compared the perceptual position shift for drifting versus displacing Gabors when the motion is toward the fovea and when the motion is away from the fovea. For

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Coppini, Giovanni, Eric Jansen, Giuseppe Turrisi, et al. "A new search-and-rescue service in the Mediterranean Sea: a demonstration of the operational capability and an evaluation of its performance using real case scenarios." Natural Hazards and Earth System Sciences 16, no. 12 (2016): 2713–27. http://dx.doi.org/10.5194/nhess-16-2713-2016.

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Abstract. A new web-based and mobile decision support system (DSS) for search-and-rescue (SAR) at sea is presented, and its performance is evaluated using real case scenarios. The system, named OCEAN-SAR, is accessible via the website http://www.ocean-sar.com. In addition to the website, dedicated applications for iOS and Android have been created to optimise the user experience on mobile devices. OCEAN-SAR simulates drifting objects at sea, using as input ocean currents and wind data provided, respectively, by the CMEMS and ECMWF. The modelling of the drifting objects is based on the leeway m

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Yazaki, Shin, Ryota Nakamura, Ioan Nistor, and Jacob Stolle. "SIMULATION OF CONTAINER DRIFT UNDER EXTREME HYDRODYNAMIC CONDITIONS." Coastal Engineering Proceedings, no. 37 (September 1, 2023): 43. http://dx.doi.org/10.9753/icce.v37.management.43.

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In Great East Japan Earthquake of 2011, debris entrained within the incoming tsunami waves was responsible for widespread infrastructure damage (Chock et al., 2011). The presence of debris within the inundating wave needs to be taken into consideration; however, few methodologies and tools exist to estimate debris hazards. Therefore, one option to evaluate the behavior of drifting debris is using numerical models. Currently, the particle method, which is a meshless analysis method, is expected to be utilized for analyzing the behavior of drifting objects (Goaseberg et al., 2017). However, the

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8

Morita, Riko, and Taro Arikawa. "REPRODUCTION ANALYSIS OF HUMAN DRIFTING BEHAVIOR DURING TSUNAMI USING NUMERICAL CALCULATION." Coastal Engineering Proceedings, no. 36v (December 28, 2020): 34. http://dx.doi.org/10.9753/icce.v36v.currents.34.

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Along with the 2011 Great East Japan Earthquake (Mw 9.0), a huge tsunami exceeding a maximum wave height of 15 m occurred. Many people and objects were destroyed and drifted by the tsunami. In addition, these debris were transported to various places that could not be predicted, resulting in significant secondary damage and increase in the number of missing. Therefore, in order to reduce the amount of damage, it is important to predict the behavior and landing points of person after set adrift in a tsunami. The best way to increase the rescue rate is to predict in advance the area that people

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9

Berg, T. E., Ø. Selvik, R. Indergård, and E. Ringen. "Maritime Emergency Preparedness – Drifting Ships." IOP Conference Series: Materials Science and Engineering 1288, no. 1 (2023): 012001. http://dx.doi.org/10.1088/1757-899x/1288/1/012001.

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Abstract The Norwegian Coastal Administration registers maritime incidents in Norwegian waters. Drifting ships and drifting objects may cause serious incidents and possible disasters. By analysing ship traffic in Norwegian waters, it is documented that the frequency of drifting ships has been approximately 0.15% of the registered ship transits, or 150–165 drifting cases annually. In addition to a possible grounding when a vessel reaches the coastline, the increased use of the ocean space for wind farms, floating solar installations, and fish farming structures (moving from sheltered coastal si

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10

SHIGIHARA, Yoshinori, Song HEO, and Tsuyoshi TADA. "APPLICABILITY OF OBJECTS DRIFTING MODEL BY TSUNAMI FOR PRACTICAL PROBLEMS." Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 72, no. 2 (2016): I_427—I_432. http://dx.doi.org/10.2208/kaigan.72.i_427.

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WAKUI, Naoto, Makoto YAMAUCHI, Yu NISHIO, Seiichiro IZAWA, and Yu FUKUNISHI. "Numerical Simulation of Objects Drifting Because of Sudden Water Flow." Proceedings of Mechanical Engineering Congress, Japan 2018 (2018): G0500201. http://dx.doi.org/10.1299/jsmemecj.2018.g0500201.

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Mínguez, R., A. J. Abascal, S. Castanedo, and R. Medina. "Stochastic Lagrangian trajectory model for drifting objects in the ocean." Stochastic Environmental Research and Risk Assessment 26, no. 8 (2011): 1081–93. http://dx.doi.org/10.1007/s00477-011-0548-7.

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Grover, Garvit, N. D. Ramesh Bhat, Samuel J. McSweeney, et al. "Discovery and Follow-up of a Quasiperiodically Nulling and Subpulse Drifting Pulsar with the Murchison Widefield Array." Astrophysical Journal 970, no. 1 (2024): 78. http://dx.doi.org/10.3847/1538-4357/ad509e.

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Abstract The phenomenon of pulsar nulling, where pulsars temporarily and stochastically cease their radio emission, is thought to be indicative of a “dying” pulsar, where radio emission ceases entirely. Here we report the discovery of a long-period pulsar, PSR J0452−3418, from the ongoing Southern-sky MWA Rapid Two-meter pulsar survey. The pulsar has a rotation period of ∼1.67 s and a dispersion measure of 19.8 pc cm−3, and it exhibits both quasiperiodic nulling and subpulse drifting. Periodic nulling is uncommon, reported in only <1% of the pulsar population, with even a smaller fraction s

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14

Ullmann-Margalit, Edna. "Big Decisions: Opting, Converting, Drifting." Royal Institute of Philosophy Supplement 58 (March 2006): 157–72. http://dx.doi.org/10.1017/s1358246100009358.

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I want to focus on some of the limits of decision theory that are of interest to the philosophical concern with practical reasoning and rational choice. These limits should also be of interest to the social-scientists' concern with Rational Choice.Let me start with an analogy. Classical Newtonian physics holds good and valid for middle-sized objects, but not for the phenomena of the very little, micro, sub-atomic level or the very large, macro, outer-space level: different theories, concepts and laws apply there. Similarly, I suggest that we might think of the theory of decisionmaking as relat

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15

Chen, Ting, Andrea Pennisi, Zhi Li, Yanning Zhang, and Hichem Sahli. "A Hierarchical Association Framework for Multi-Object Tracking in Airborne Videos." Remote Sensing 10, no. 9 (2018): 1347. http://dx.doi.org/10.3390/rs10091347.

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Multi-Object Tracking (MOT) in airborne videos is a challenging problem due to the uncertain airborne vehicle motion, vibrations of the mounted camera, unreliable detections, changes of size, appearance and motion of the moving objects and occlusions caused by the interaction between moving and static objects in the scene. To deal with these problems, this work proposes a four-stage hierarchical association framework for multiple object tracking in airborne video. The proposed framework combines Data Association-based Tracking (DAT) methods and target tracking using a compressive tracking appr

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16

Hwang, Taegeon, Taeyoon Kim, Seonyong Choi, Chanhyun Ko, and Woo-Dong Lee. "On Applicability of LS-DYNA for Collision Analysis of Drifting Objects." Korea Society of Coastal Disaster Prevention 9, no. 2 (2022): 133–43. http://dx.doi.org/10.20481/kscdp.2022.9.2.133.

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The characteristics of a secondary disaster are not well known with respect to the drift-impact by storm surge or tsunami. A numerical analysis for understanding the characteristics of a secondary disaster must be capable of simulating fluid dynamics as well as structural behaviors. In this sense, a fluid-structure interaction analysis is necessary with specialized numerical model such as LS-DYNA. In this study, we numerically simulated the breakaway-drift-impact process of a container due to break waves using LS-DYNA, and additionally examined the applicability of the model. Furthermore, we i

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17

Wang, Zhongli, Litong Fan, and Baigen Cai. "A 3D Relative-Motion Context Constraint-Based MAP Solution for Multiple-Object Tracking Problems." Sensors 18, no. 7 (2018): 2363. http://dx.doi.org/10.3390/s18072363.

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Multi-object tracking (MOT), especially by using a moving monocular camera, is a very challenging task in the field of visual object tracking. To tackle this problem, the traditional tracking-by-detection-based method is heavily dependent on detection results. Occlusion and mis-detections will often lead to tracklets or drifting. In this paper, the tasks of MOT and camera motion estimation are formulated as finding a maximum a posteriori (MAP) solution of joint probability and synchronously solved in a unified framework. To improve performance, we incorporate the three-dimensional (3D) relativ

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18

SHIMADA, Yoichi. "MOVEMENT CHARACTERISTICS OF DRIFTING OBJECTS IN THE SEA AREA AROUND THE OKINAWA AND AMAMI ISLANDS BY DRIFTING BUOY OBSERVATIONS." Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 77, no. 2 (2021): I_319—I_324. http://dx.doi.org/10.2208/kaigan.77.2_i_319.

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Cabral, J. B., M. Lares, S. Gurovich, D. Minniti, and P. M. Granitto. "Drifting features: Detection and evaluation in the context of automatic RR Lyrae identification in the VVV." Astronomy & Astrophysics 652 (August 2021): A151. http://dx.doi.org/10.1051/0004-6361/202141247.

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Context. As most of the modern astronomical sky surveys produce data faster than humans can analyse it, machine learning (ML) has become a central tool in astronomy. Modern ML methods can be characterised as highly resistant to some experimental errors. However, small changes in the data over long angular distances or long periods of time, which cannot be easily detected by statistical methods, can be detrimental to these methods. Aims. We develop a new strategy to cope with this problem, using ML methods in an innovative way to identify these potentially detrimental features. Methods. We intr

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20

Lee, Huang-Chen, Chun-Yu Lin, Chun-Han Lin, Sheng-Wen Hsu, and Chung-Ta King. "A Low-Cost Method for Measuring Surface Currents and Modeling Drifting Objects." IEEE Transactions on Instrumentation and Measurement 60, no. 3 (2011): 980–89. http://dx.doi.org/10.1109/tim.2010.2062730.

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Gomes, C., R. Mahon, W. Hunte, and S. Singh-Renton. "The role of drifting objects in pelagic fisheries in the Southeastern Caribbean." Fisheries Research 34, no. 1 (1998): 47–58. http://dx.doi.org/10.1016/s0165-7836(97)00079-9.

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Abascal, Ana Julia, Sonia Castanedo, Vicente Fernández, and Raúl Medina. "Backtracking drifting objects using surface currents from high-frequency (HF) radar technology." Ocean Dynamics 62, no. 7 (2012): 1073–89. http://dx.doi.org/10.1007/s10236-012-0546-4.

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Hwang, Taegeon, Jiwon Kim, Dong-Ha Lee, and Jae-Cheol Lee. "Location Tracking of Drifting Container by Solitary Wave Load Using a Motion Analysis Program." Journal of Ocean Engineering and Technology 37, no. 4 (2023): 158–63. http://dx.doi.org/10.26748/ksoe.2023.023.

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<i>Objects adrift can cause considerable damage to coastal infrastructure and property during tsunami and storm surge events. Despite the potential for harm, the drifting behavior of these objects remains poorly understood, thereby hindering effective prediction and mitigation of collision damage. To address this gap, this study employed a motion analysis program to track a drifting container's location using images from an existing laboratory experiment. The container's trajectory and velocity were calculated based on the positions of five markers strategically placed at its four corner

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Chmel, A., V. S. Kuksenko, V. S. Smirnov, and N. G. Tomilin. "Anomalies of critical state in fracturing geophysical objects." Nonlinear Processes in Geophysics 14, no. 2 (2007): 103–8. http://dx.doi.org/10.5194/npg-14-103-2007.

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Abstract. Non-linear time-sequences of fracture-related events were studied in drifting sea-ice and fracturing rock. A reversible drop of the b-value was detected prior to the large-scale sea-ice cover fragmentation, when the time sequence of impact interactions between ice-fields was fully decorrelated. A similar loss of the temporal invariance of the fracture process was revealed in the time sequence of microfracture events detected in a loaded rock sample. These temporal gaps in the continuous critical state of the considered self-organizing, open systems were attributed to the property of

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Isobe, Atsuhiko, Shin’ichiro Kako, Pil-Hun Chang, and Takeshi Matsuno. "Two-Way Particle-Tracking Model for Specifying Sources of Drifting Objects: Application to the East China Sea Shelf." Journal of Atmospheric and Oceanic Technology 26, no. 8 (2009): 1672–82. http://dx.doi.org/10.1175/2009jtecho643.1.

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Abstract The two-way Lagrangian particle-tracking model (PTM) is proposed for specifying sources of objects drifting with random-walk processes on the sea surface. First, to determine object source candidates, modeled particles are released from the point (hereafter, “receptor”) where an observer finds the objects using a backward-in-time PTM with modeled ocean currents of which directions are reversed in sign. Second, the modeled particles are released from these source candidates in a forward-in-time PTM using ocean currents originally computed in hydrographic models. Third, the source candi

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Fujita, Isamu, and Yoshitaka Matsuzaki. "Development of Real Time Telemetry Buoy for Tracking Drifting Objects in Coasting Area." Journal of The Japan Institute of Marine Engineering 49, no. 2 (2014): 173–78. http://dx.doi.org/10.5988/jime.49.173.

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SHIMADA, Yoichi. "TRIAL OF THE BEHAVIOR SIMULATION OF DRUM SIZE DRIFTING OBJECTS IN OSAKA BAY." Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering) 70, no. 2 (2014): I_798—I_803. http://dx.doi.org/10.2208/jscejoe.70.i_798.

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Breivik, Øyvind, Tor Christian Bekkvik, Cecilie Wettre, and Atle Ommundsen. "BAKTRAK: backtracking drifting objects using an iterative algorithm with a forward trajectory model." Ocean Dynamics 62, no. 2 (2011): 239–52. http://dx.doi.org/10.1007/s10236-011-0496-2.

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NAKAYAMA, Tomohoro, Takashi IZUMIYA, and Kunihiko ISHIBASHI. "A METHOD FOR ESTIMATING IMPACT FORCES DUE TO DRIFTING OBJECTS IN TSUNAMI INUNDATED FLOW." Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 73, no. 2 (2017): I_967—I_972. http://dx.doi.org/10.2208/kaigan.73.i_967.

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NOJIMA, Kazuya, Shinsuke TAKASE, and Masaaki SAKURABA. "STUDY ON COLLISION FORCE OF TSUNAMI DUE TO DIFFERENCE OF ARRANGEMENT OF DRIFTING OBJECTS." Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 74, no. 2 (2018): I_367—I_372. http://dx.doi.org/10.2208/kaigan.74.i_367.

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NOJIMA, Kazuya, Masaaki SAKURABA, Takuma KOTANI, Kenji HASHIMOTO, and Shinsuke TAKASE. "EXPERIMENTS ON COLLISION OF DRIFTING OBJECTS WITH TRANSPARENT STRUCTURES SUCH AS TSUNAMI EVACUATION BUILDINGS." Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 76, no. 2 (2020): I_301—I_306. http://dx.doi.org/10.2208/kaigan.76.2_i_301.

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SASAKI, Tatsuo, Wataru NISHIDA, and Hideki MOTOHASHI. "A NUMERICAL ANALYSIS MODEL FOR PREDICTING THE MOVEMENT OF DRIFTING OBJECTS IN OSAKA BAY." Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 78, no. 2 (2022): I_415—I_420. http://dx.doi.org/10.2208/kaigan.78.2_i_415.

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Phoka, Thanathorn, Kritsana Kumphet, and Wansuree Massagram. "Localization of a Micro AUV with Dynamic Trilateration Using Low-power Packet Radio RSSI." ECTI Transactions on Computer and Information Technology (ECTI-CIT) 15, no. 2 (2021): 177–85. http://dx.doi.org/10.37936/ecti-cit.2021152.239947.

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Communication radio-based AUV localization was demonstrated in this study. The proposed solution was formulated and derived for both stationary and linearly drifting objects of interest and is possible of operating in GNSS-denied operations. Linear curve-fit to experimental data for radio-distance mapping with range calculation was tested in terrestrial and marine environments. The use of packet radio equipment on a secondary basis for localization may present a potential for reduced requirements for high precision or task-specific hardware in the future.

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Usoltsev, Igor I., Talgat R. Kilmatov, and Aleksander N. Vrazhkin. "Analysis and forecast of the surface currents in the Okhotsk Sea on the base of observations on drift of buoys." Izvestiya TINRO 189, no. 2 (2017): 131–38. http://dx.doi.org/10.26428/1606-9919-2017-189-131-138.

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Data of observations on drifting buoys in the western Okhotsk Sea are presented. Quasi-stochastic mode of the buoys drift under forcing of atmospheric cyclone is noted. The drift is analyzed jointly with analysis of the wind field and the sea surface satellite altimetry. The buoy drift trajectories are modeled under separate influence of the wind-driven and geostrophic flows. There is concluded that both wind-driven and geostrophic currents at the sea surface should be accounted for forecasting of drift for buoys or any floating objects.

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Sutherland, Graig, Victor de Aguiar, Lars-Robert Hole, Jean Rabault, Mohammed Dabboor, and Øyvind Breivik. "Estimating a mean transport velocity in the marginal ice zone using ice–ocean prediction systems." Cryosphere 16, no. 5 (2022): 2103–14. http://dx.doi.org/10.5194/tc-16-2103-2022.

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Abstract. Understanding the transport of objects and material in the marginal ice zone (MIZ) is critical for human operations in polar regions. This can be the transport of pollutants, such as spilled oil, or the transport of objects, such as drifting ships and search and rescue operations. For emergency response, the use of environmental prediction systems are required which predict ice and ocean parameters and are run operationally by many centres in the world. As these prediction systems predict both ice and ocean velocities, as well as ice concentration, it must be chosen how to combine th

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Rogachko, S. "The force action of ice cakes to stationary and floating objects." Herald of the Odessa National Maritime University, no. 73 (September 1, 2024): 39–47. http://dx.doi.org/10.47049/2226-1893-2024-2-39-47.

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In freezing seas during winter periods between open water and cover by ice, transitional zones are formed from fragments of level ice fields (ice cakes). The quantity and sizes of these fragments decrease as they approach to open water. The ice cakes are drifting due to action of winds and sea currents. During storm periods, being on the stormy surface of the seas, ice cakes are capable of exerting the dynamic loads on stationary and floating objects. At the initial moment of contact of ice floes with various obstacles, significant local pressures are realized оn small contact areas, which rep

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Lugon Junior, Jader, Francine de Almeida Kalas, Pedro Paulo Gomes Watts Rodrigues, et al. "Lagrangian Trajectory Simulation of Floating Objects in the State of São Paulo Coastal Region." Defect and Diffusion Forum 396 (August 2019): 42–49. http://dx.doi.org/10.4028/www.scientific.net/ddf.396.42.

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In this work a computational model is presented in order to simulate the trajectory of objects near the Ilhabela island region, in São Paulo coastline, Brazil. The MOHID platform (MOdelagem HIDrodinâmica - Hydrodynamics Modelling) was used with the downscalling technique used to obtain local hydrodynamic currents at local scale. Two different applications are tested, the first is the hypothetical trajectory of a dead cetacean specimen drifting that could have happened in fact if it was not arrested to a more adequate spot near Ilhabela island in November, 2017, and the second is the simulati

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Clifton, Andrew, Jean-Daniel Rüedi, and Michael Lehning. "Snow saltation threshold measurements in a drifting-snow wind tunnel." Journal of Glaciology 52, no. 179 (2006): 585–96. http://dx.doi.org/10.3189/172756506781828430.

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AbstractWind tunnel measurements of snowdrift in a turbulent, logarithmic velocity boundary layer have been made in Davos, Switzerland, using natural snow. Regression analysis gives the drift threshold friction velocity (u*t), assuming an exponential drift profile and a simple drift to friction velocity relationship. Measurements over 15 snow covers show that u*t is influenced more by snow density and particle size than by ambient temperature and humidity, and varies from 0.27 to 0.69 ms–1. Schmidt’s threshold algorithm and a modified version used in SNOWPACK (a snow-cover model) agree well wi

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Carlson, Daniel F., Wayne J. Pavalko, Dorthe Petersen, Martin Olsen, and Andreas E. Hass. "Maker Buoy Variants for Water Level Monitoring and Tracking Drifting Objects in Remote Areas of Greenland." Sensors 20, no. 5 (2020): 1254. http://dx.doi.org/10.3390/s20051254.

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Meltwater runoff from the Greenland Ice Sheet changes water levels in glacial lakes and can lead to glacial lake outburst flooding (GLOF) events that threaten lives and property. Icebergs produced at Greenland’s marine terminating glaciers drift into Baffin Bay and the North Atlantic, where they can threaten shipping and offshore installations. Thus, monitoring glacial lake water levels and the drift of icebergs can enhance safety and aid in the scientific studies of glacial hydrology and iceberg-ocean interactions. The Maker Buoy was originally designed as a low-cost and open source sensor to

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Psarras, Bill. "Into/Across the sea: Critical perspectives in media arts." Technoetic Arts 22, no. 2 (2024): 151–54. https://doi.org/10.1386/tear_00127_2.

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The issue delves into and extends across the sea by exploring critical art practices and methodologies at the intersections of performance art, new media and site-specific/installation art, that integrate ocean, waves, currents, tides, coasts, depths, sea objects/vessels or environmental conditions as vital agents of the artwork. It presents nine articles by artists and scholars whose art practice and research engages with performative, embodied, participatory and technological aspects of the sea by integrating processes of drifting, floating, standing, recording, transmitting and mapping, whi

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Gorea, A., and J. Labarre. "A Simplified, Low-Level Account of the Bistable Perception Yielded by Objects Drifting toward and Past One Another." Perception 26, no. 1_suppl (1997): 163. http://dx.doi.org/10.1068/v970358.

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It is conjectured that the relative frequency of streaming vs bouncing percepts yielded by two objects drifting toward and past one another reflects the relative ‘strength’ of the underlying ‘continuity’ and ‘discontinuity’ motion vectors in the stimulus. The frequency of the two perceptual states should then be predictable from the relative effective contrast of these components which, in turn, is governed by the relative speed sensitivity and spatiotemporal integration range of the underlying sensors. Three distinct experiments were run to test this hypothesis. Percentage bouncing (%B) was a

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Matteucci, Giulio, Benedetta Zattera, Rosilari Bellacosa Marotti, and Davide Zoccolan. "Rats spontaneously perceive global motion direction of drifting plaids." PLOS Computational Biology 17, no. 9 (2021): e1009415. http://dx.doi.org/10.1371/journal.pcbi.1009415.

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Computing global motion direction of extended visual objects is a hallmark of primate high-level vision. Although neurons selective for global motion have also been found in mouse visual cortex, it remains unknown whether rodents can combine multiple motion signals into global, integrated percepts. To address this question, we trained two groups of rats to discriminate either gratings (G group) or plaids (i.e., superpositions of gratings with different orientations; P group) drifting horizontally along opposite directions. After the animals learned the task, we applied a visual priming paradig

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Huang, Kunpeng, Yasha Iravantchi, Dongyao Chen, and Alanson P. Sample. "MagDesk: Interactive Tabletop Workspace Based on Passive Magnetic Tracking." Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies 8, no. 4 (2024): 1–31. http://dx.doi.org/10.1145/3699756.

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Accurate and responsive 3D tracking enables interactive and context-aware workspaces, including mixed reality 3D interfaces and collaborative tangible interactions. However, limitations of current tracking mechanisms - line-of-sight occlusion, drifting errors, small working volumes, or instrumentation that requires maintenance - ultimately restrict their adoption. This paper introduces MagDesk, an interactive tabletop workspace capable of real-time 3D tracking of passive magnets embedded in objects. Using a sensing array of 112 low-cost magnetometers underneath a table, our custom-designed sig

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Irving, Zachary C. "Drifting and Directed Minds: The Significance of Mind-Wandering for Mental Agency." Journal of Philosophy 118, no. 11 (2021): 614–44. http://dx.doi.org/10.5840/jphil20211181141.

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Perhaps the central question in action theory is this: what ingredient of bodily action is missing in mere behavior? But what is an analogous question for mental action? I ask this: what ingredient of active, goal-directed thought is missing in mind-wandering? My answer: attentional guidance. Attention is guided when you would feel pulled back from distractions. In contrast, mind-wandering drifts between topics unchecked. My unique starting point motivates new accounts of four central topics about mental action. First, its causal basis. Mind-wandering is a case study that allows us to tease ap

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Maufroy, Alexandra, David M. Kaplan, Nicolas Bez, et al. "Massive increase in the use of drifting Fish Aggregating Devices (dFADs) by tropical tuna purse seine fisheries in the Atlantic and Indian oceans." ICES Journal of Marine Science 74, no. 1 (2016): 215–25. http://dx.doi.org/10.1093/icesjms/fsw175.

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Since the mid-1990s, drifting Fish Aggregating Devices (dFADs), artificial floating objects designed to aggregate fish, have become an important mean by which purse seine fleets catch tropical tunas. Mass deployment of dFADs, as well as the massive use of GPS buoys to track dFADs and natural floating objects, has raised serious concerns for the state of tropical tuna stocks and ecosystem functioning. Here, we combine tracks from a large proportion of the French GPS buoys from the Indian and Atlantic oceans with data from observers aboard French and Spanish purse seiners and French logbook data

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Виноградов, А. Ю., and Н. А. Казаков. "Debris-flows, mudflows and submerged tree drifting in the plains." Гидросфера. Опасные процессы и явления 3, no. 2 (2020): 228–45. http://dx.doi.org/10.34753/hs.2020.2.3.228.

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Традиционно считается, что сели формируются только в горных районах, а их возникновение на равнинных территориях невозможно. Эти представления об условиях развития и распространения селевых процессов отражены в Российских нормативных документах, определяющих состав инженерных изысканий для строительства: в них как селеопасные и потенциально селеопасные районы выделены только горные территории, а равнинные и холмистые территории показаны как не селеопасные. Таким образом, селевые риски при проектно-изыскательских работах как на большей части территории России, так и в мировой практике, не учиты

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NIMURA, Masaki, Koji KAWASAKI, Tomokazu MURAKAMI, and Shinya SHIMOKAWA. "THREE-DIMENSIONAL NUMERICAL SIMULATION OF STORM SURGE-INDUCED DRIFTING OBJECTS AROUND NAGOYA PORT FOR POTENTIAL MAXIMUM TYPHOON." Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 77, no. 2 (2021): I_109—I_114. http://dx.doi.org/10.2208/kaigan.77.2_i_109.

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Tung, Tony, and Takashi Matsuyama. "Visual Tracking Using Multimodal Particle Filter." International Journal of Natural Computing Research 4, no. 3 (2014): 69–84. http://dx.doi.org/10.4018/ijncr.2014070104.

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Visual tracking of humans or objects in motion is a challenging problem when observed data undergo appearance changes (e.g., due to illumination variations, occlusion, cluttered background, etc.). Moreover, tracking systems are usually initialized with predefined target templates, or trained beforehand using known datasets. Hence, they are not always efficient to detect and track objects whose appearance changes over time. In this paper, we propose a multimodal framework based on particle filtering for visual tracking of objects under challenging conditions (e.g., tracking various human body p

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Pfalzner, Susanne, Dylan Paterson, Michele T. Bannister, and Simon Portegies Zwart. "Interstellar Objects Follow the Collapse of Molecular Clouds." Astrophysical Journal 921, no. 2 (2021): 168. http://dx.doi.org/10.3847/1538-4357/ac0c10.

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Abstract Interstellar objects (ISOs), the parent population of 1i/‘Oumuamua and 2i/Borisov, are abundant in the interstellar medium of the Milky Way. This means that the interstellar medium, including molecular-cloud regions, has three components: gas, dust, and ISOs. From observational constraints of the field density of ISOs drifting in the solar neighborhood, we infer that a typical molecular cloud of 10 pc diameter contains some 1018 ISOs. At typical sizes ranging from hundreds of meters to tens of kilometers, ISOs are entirely decoupled from the gas dynamics in these molecular clouds. Her

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Laelasari, Iseu, and Yusuf Hilmi Adisendjaja. "Mengeksplorasi Kemampuan Berpikir Kritis Dan Rasa Ingin Tahu Siswa Melalui Kegiatan Laboratorium Inquiry Sederhana." THABIEA : JOURNAL OF NATURAL SCIENCE TEACHING 1, no. 1 (2018): 14. http://dx.doi.org/10.21043/thabiea.v1i1.3879.

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<strong><span style="font-size: 9.0pt; line-height: 107%; font-family: 'Times New Roman',serif; mso-fareast-font-family: Calibri; mso-ansi-language: IN; mso-fareast-language: EN-US; mso-bidi-language: AR-SA;">Exploring Critical Thinking And Students Curiosity Through Simple Inquiry Laboratory Activity</span></strong><span style="font-size: 9.0pt; line-height: 107%; font-family: 'Times New Roman',serif; mso-fareast-font-family: Calibri; mso-ansi-language: EN; mso-fareast-language: EN-US; mso-bidi-language: AR-SA;" lang="EN">. This study is a preliminary research to

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