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Journal articles on the topic 'Boat interaction'

Author: Grafiati

Published: 16 September 2021

Last updated: 30 July 2025

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1

Weng, Jinxian, and Guorong Li. "Economic Loss Analysis of Fishing Boat Collisions Considering Spatial-Temporal Interaction Effects." Journal of Navigation 73, no. 5 (2020): 1069–86. http://dx.doi.org/10.1017/s037346332000017x.

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Considering unobserved spatial-temporal interaction effects, this study proposes a Bayesian spatial-temporal interaction model for predicting economic loss from fishing boat collisions using 10-year (2004–2014) collision records from six different areas in the waters of Fujian, China. Results show strong spatial heterogeneity and correlation effects in fishing boat collisions, while the economic loss from boat collisions gradually decreases with the time trend. Collision time, collision location, visibility and the involvement of LNG/LPG/chemical-carrying ships show similar marginal effects on

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2

Altenbach, L., M. Wermbter, P. Marleaux, and M. Abdel-Maksoud. "Optimization of a coupled launching process considering hydrodynamic interaction effects." IOP Conference Series: Materials Science and Engineering 1288, no. 1 (2023): 012021. http://dx.doi.org/10.1088/1757-899x/1288/1/012021.

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Abstract Crane-assisted launching and recovering of small boats from a large vessel is common in a wide range of operational scenarios and may be required during research missions or in emergency situations for rescue boats. As the mothership moves in natural irregular seas, the resulting accelerations and motions of the small boat can lead to dangerous situations, such as a collision between the mothership and the small boat or a slamming of the small boat onto the free water surface can occur, posing a great danger to the people involved. In the paper, the development of a coupled simulation

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3

Finn, Hugh, Rebecca Donaldson, and Michael Calver. "Feeding Flipper: a case study of a humandolphin interaction." Pacific Conservation Biology 14, no. 3 (2008): 215. http://dx.doi.org/10.1071/pc080215.

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We document a human-dolphin interaction involving the illegal feeding of wild Bottlenose Dolphins (Tursiops sp.) in Cockburn Sound, Western Australia from 1993-2003. In 1993 only one dolphin was considered conditioned to human interaction through food reinforcement. By 2001, 16% (n = 12) of the resident community of 74 adult dolphins were conditioned, and at least 14 dolphins were conditioned by 2003. Of the 13 conditioned dolphins of known sex, 11 (85%) were males. We observed conditioned dolphins initiating interactions by approaching recreational fishing boats and by residing for several ho

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4

Papale, Elena, Marta Azzolin, and Cristina Giacoma. "Vessel traffic affects bottlenose dolphin (Tursiops truncatus) behaviour in waters surrounding Lampedusa Island, south Italy." Journal of the Marine Biological Association of the United Kingdom 92, no. 8 (2011): 1877–85. http://dx.doi.org/10.1017/s002531541100083x.

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Since 2003, as part of the LIFE project ‘Del.Ta.’ (NAT/IT/000163) a bottlenose dolphin community has been studied in order to assess the impact of increasing boat traffic in the Pelagie Archipelago (Sicily, Italy). During the summer of 2006 and 2008, land-based surveys were carried out at Lampedusa, one of the Archipelago's Islands, at set hours from 6 locations (7 in 2008) in standard weather conditions. Continuous horizon scanning and focal group sampling methods were used to study dolphin presence and behaviour. Dolphin–boat interactions were recorded for each sighting. A total of approxima

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Lirazan, Machir Glib, Ericson Vince Ray Yulo, Maria Therese Kathleen Martir, Regie Antonette Salvilla, Jessica Oñate-Pacalioga, and Manuel Eduardo de la Paz. "Behavioral responses of Irrawaddy dolphins, Orcaella brevirostris (Owen in Grey, 1866) to fishing boats in a globally important marine mammal area in central Philippines." Palawan Scientist 14, no. 2 (2022): 43–53. http://dx.doi.org/10.69721/tps.j.2022.14.2.06.

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The Irrawaddy dolphins, Orcaella brevirostris (Owen in Grey 1866) of Guimaras Strait, Philippines, have been known to utilize a core habitat within a coastal area surrounding the Bago River estuary in Negros Occidental. The dolphins’ close dependence on coastal waters often makes unavoidable direct interaction with human communities. Daily human activities in the coastal areas can pose serious threats to the dolphins, including high risk of entanglement in fishing nets, pollution, and disturbances caused by fishing boats and larger vessels. This study determined the behavior of dolphins toward

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6

Padthawaro, Ruengsak, Burin Plengdeesakul, Homhuan Buarabha, and Laddawan Intarakamhang. "Illuminated Boat: Forms and Aesthetics in Nakhon Phanom's Illuminated Boat Festival." Journal of Advanced Zoology 44, S-3 (2023): 400–409. http://dx.doi.org/10.17762/jaz.v44is-3.611.

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This research on Illuminated Boat: Forms and Aesthetics in Nakhon Phanom's Illuminated Boat Festival seeks to 1) examine the evolution of the illuminated boat in Nakhon Phanom Province, 2) examine the forms and aesthetics of the illuminated boat tradition in Nakhon Phanom Province, and 3) create contemporary paintings based on the styles and aesthetics of the illuminated boat traditions in Nakhon Phanom Province. This study employs a qualitative research methodology. The research target groups in Nakhon Phanom Province consisted of 10 experts, 10 practitioners, and 5 other related individuals.

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7

Marimon Giovannetti, Laura, Ali Farousi, Fabian Ebbesson, Alois Thollot, Alex Shiri, and Arash Eslamdoost. "Fluid-Structure Interaction of a Foiling Craft." Journal of Marine Science and Engineering 10, no. 3 (2022): 372. http://dx.doi.org/10.3390/jmse10030372.

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Hydrofoils are a current hot topic in the marine industry both in high performance sailing and in new passenger transport systems in conjunction with electric propulsion. In the sailing community, the largest impact is seen from the America’s cup, where boats are sailed at more than 50 knots (over 100 km/h) with 100% “flying” time. Hydrofoils are also becoming popular in the Olympics, as in the 2024 Olympic games 5 gold medals will be decided on foiling boats/boards. The reason for the increasing popularity of hydrofoils and foiling boats is the recent advances in composite materials, especial

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8

Knudsen, Stig Staghøj, Laura Marimon Giovannetti, Brian Nyvang Legarth, and Jens Honoré Walther. "Dynamic Fluid Structure Interaction of NACRA 17 Foil." Journal of Marine Science and Engineering 12, no. 2 (2024): 237. http://dx.doi.org/10.3390/jmse12020237.

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The NACRA 17 is a small foiling catamaran that is lifted out of the water by two asymmetric z-foils and two rudder elevators. This paper investigates how foil deflection affects not only foil performance but overall boat behaviour using a numerical Fluid Structure Interaction (FSI) model. The deformations are solved with a solid model based on the Finite Element Method (FEM) and the flow is solved with a Reynolds Average Navier-Stokes (RANS) based Finite Volume Model (FVM). The models are strongly coupled to allow dynamic FSI simulations. The numerical model is validated by comparing it to an

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9

Díaz López, Bruno, Julia Andrea Bernal Shirai, Alberto Bilbao Prieto, and Paula Méndez Fernández. "Diving activity of a solitary wild free ranging bottlenose dolphin (Tursiops truncatus)." Journal of the Marine Biological Association of the United Kingdom 88, no. 6 (2008): 1153–57. http://dx.doi.org/10.1017/s0025315408000921.

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Solitary wild bottlenose dolphins and man frequenting the same small areas makes boat interaction more or less inevitable. Here we provide the first quantified data about solitary bottlenose dolphin diving behaviour in the presence and absence of boats. Over 110 hours were spent observing a solitary bottlenose dolphin within a 6 km2 bay on the north-western coast of Spain from April to August 2005. A generalized linear mixed model explaining 77.3% of the variability of duration of dives indicated that the animal did not vary its diving activity in function of the presence of boats. However, th

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Niswatin, Niswatin, Nilawaty Yusuf, Nur Fadilah Arsyad, Mohamad Yuda Olatapa, and Siti Aisyah Bahsuan. "Akuntansi Hak dan Kewajiban: Refleksi Akuntansi Nelayan Juragan Muslim di Kawasan Teluk Tomini." Al-Kharaj : Jurnal Ekonomi, Keuangan & Bisnis Syariah 6, no. 2 (2023): 2731–41. http://dx.doi.org/10.47467/alkharaj.v6i2.5403.

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This research aims to reveal the meaning of accounting for muslim skipper fishermen in the tomini bay area. Symbolic interactionism is the research method used in this research. The symbolic interactionist approach is also used as a data collection technique as well as a unit of analysis. The data used are (1) the results of interviews with the boat owner as ship owners and retainers (2) results of observations of fishermen's activities and interactions with crew members and their environment (3) documents such as worksheets and financial reports. This research determines that there is a mutua

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11

Cecchetti, Arianna, Karen A. Stockin, Jonathan Gordon, and José M. N. Azevedo. "Short-term effects of tourism on the behaviour of common dolphins (Delphinus delphis) in the Azores." Journal of the Marine Biological Association of the United Kingdom 98, no. 5 (2017): 1187–96. http://dx.doi.org/10.1017/s0025315417000674.

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Short-term measures of behavioural responses of cetaceans to tourism operations have been used in many studies to interpret and understand potential long-term impacts of biological importance. The short-beaked common dolphin (Delphinus delphis) is the species most frequently observed in the Azores and constitutes an important component of the marine mammal tourism industry in this region. This study investigated the potential effects of tour boats on the behaviour of common dolphins off São Miguel, Azores, with particular focus on the changes in activity budget and the time required to resume

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12

Gage, Stephen. "The boat/helmsman." Technoetic Arts: a Journal of Speculative Research 5, no. 1 (2007): 15–24. http://dx.doi.org/10.1386/tear.5.1.15_1.

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13

Pei LI. "Miao Canoe Dragon Boat: Protection and Inheritance of Contemporary Guizhou." Journal of Information Systems Engineering and Management 10, no. 30s (2025): 818–35. https://doi.org/10.52783/jisem.v10i30s.4921.

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With a rich historical legacy and distinctive national symbolic value, the Miao dug-boat dragon boat culture is a significant component of China's ethnic minorities' intangible cultural heritage. In order to show how this cultural phenomenon adjusts to changes in contemporary society and investigate the prospect of its sustainable growth, this research methodically examines the historical development, cultural worth, protected status, and inheritance route of the Miao dug-boat dragon boat. In order to conduct a multi-level interpretation of the Miao dug-boat dragon boat culture in Qiandongnan,

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14

Jothivel, S., Jibon Kotoky, and S. Kabilan. "Crystal structure of 1-(2-chloroacetyl)-2,6-bis(4-fluorophenyl)-3,3-dimethylpiperidin-4-one." Acta Crystallographica Section E Structure Reports Online 70, no. 10 (2014): 262–64. http://dx.doi.org/10.1107/s1600536814021278.

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In the title molecule, C21H20ClF2NO2, the piperidine ring adopts a slightly distorted boat conformation. The two benzene rings form a dihedral angle of 87.43 (1)°. A weak intramolecular C—H...π interaction is observed. In the crystal, weak C—H...O hydrogen bonds and weak C—H...π interactions connect the molecules, forming a three-dimensional network.

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15

Sun, Chuan-Wen, Yan-Xia Chen, and Tian-Yan Liu. "2-Amino-6-{[(6-chloropyridin-3-yl)methyl](ethyl)amino}-1-methyl-5-nitro-4-phenyl-1,4-dihydropyridine-3-carbonitrile ethanol monosolvate." Acta Crystallographica Section E Structure Reports Online 68, no. 4 (2012): o1146. http://dx.doi.org/10.1107/s1600536812011750.

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In the title compound, C21H21ClN6O2·C2H6O, a member of the insecticidal active neonicotinoid group of compounds, the 1,4-dihydropyridine ring adopts a boat conformation. An intramolecular C—H...O hydrogen bond occurs while the components are linked by an N—H...O interaction. The crystal packing is stablized by O—H...N hydrogen bonds and C—H...O interactions.

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16

Fischer, Kerstin, Lars Christian Jensen, and Nadine Zitzmann. "In the same boat." Interaction Studies 22, no. 3 (2021): 488–515. http://dx.doi.org/10.1075/is.00013.fis.

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Abstract In this paper, we analyze what effects indicators of a shared situation have on a speaker’s persuasiveness by investigating how a robot’s advice is received when it indicates that it is sharing the situational context with its user. In our experiment, 80 participants interacted with a robot that referred to aspects of the shared context: Face tracking indicated that the robot saw the participant, incremental feedback suggested that the robot was following their actions, and comments about, and gestures towards, the shared physical situation and linguistic references to the dialog hist

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17

Yuan, Zongsong, Jinze Zha, and Junxiu Liu. "A Light-Steered Self-Rowing Liquid Crystal Elastomer-Based Boat." Polymers 17, no. 6 (2025): 711. https://doi.org/10.3390/polym17060711.

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Conventional machines often face limitations due to complex controllers and bulky power supplies, which can hinder their reliability and operability. In contrast, self-excited movements can harness energy from a stable environment for self-regulation. In this study, we present a novel model of a self-rowing boat inspired by paddle boats. This boat is powered by a liquid crystal elastomer (LCE) turntable that acts as a motor and operates under consistent illumination. We investigated the dynamic behavior of the self-rowing boat under uniform illumination by integrating the photothermal reaction

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18

Shreevidhyaa Suressh, V., K. Prathebha, S. Abdul Basheer, S. Ponnuswamy, and G. Usha. "Crystal structure of 2-chloro-1-(3-methyl-2,6-diphenylpiperidin-1-yl)ethanone." Acta Crystallographica Section E Crystallographic Communications 71, no. 2 (2015): o135—o136. http://dx.doi.org/10.1107/s205698901500122x.

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In the title compound, C20H22ClNO, the piperidine ring has a twist-boat conformation. There is an intramolecular C—H...π interaction involving the two phenyl rings which are inclined to one another by 84.91 (7)°. In the crystal, molecules are linkedviaC—H...O hydrogen bonds, forming helical chains along [010]. The chains are linked by C—H...π interactions, forming sheets parallel to (100).

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19

Meyers, Steven D., Stacey Day, and Mark E. Luther. "Measurements of High-Froude Number Boat Wakes near a Seawall." Applied Sciences 15, no. 9 (2025): 4807. https://doi.org/10.3390/app15094807.

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Characterizing the coastal wave environment, typically composed of wind-driven waves and boat wakes, and its interaction with built infrastructure is essential for planning sustainable and resilient shoreline development and protection. Objectively identifying and measuring non-stationary wave features, particularly boat wakes, in longer data records remains a challenge. A wave gauge array of four pressure sensors was deployed for several weeks in the northernmost section of urbanized Tampa Bay, FL, a sheltered, shallow (mean depth 1.2 m) region with frequent recreational small-boat activity.

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20

Placido, Carlos Eduardo de Araujo, Juliano de Mesquita Pinheiro, and Flavianny Monteiro Carvalho. "The cybercultural characteristics present in the digital story The Boat (2015)." Caderno Pedagógico 21, no. 10 (2024): e9996. http://dx.doi.org/10.54033/cadpedv21n10-423.

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The digital story The Boat (2015) by Matt Huynh revolves around the Vietnamese teenager Mai who had to emigrate from Vietnam to Australia in a boat. Mai had to endure poor living conditions such as hunger, thirst, and emotional distress caused by the war. In this context, the digital story narrates those hardships and provides an immersive, interactive reading experience by incorporating cybercultural features into the narrative. Despite the prevalence of cyberculture in the narrative, recent studies about The Boat (2015) focus either on movement-related features (Lehman, 2020) or utilize the

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21

Purwanto, Agus, Yvonne Indrawati Pattinaja, and Leopold Arthur Tomasila. "ANALISIS KELEMBAGAAN NELAYAN KAPAL SLEREK DI DESA PENGAMBENGAN KECAMATAN NEGARA KABUPATEN JEMBARANA BALI: STUDI HUBUNGAN KERJA DAN DINAMIKA PENDAPATAN NELAYAN." PAPALELE (Jurnal Penelitian Sosial Ekonomi Perikanan dan Kelautan) 5, no. 2 (2021): 77–85. http://dx.doi.org/10.30598/papalele.2021.5.2.77.

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Economic relations between capital owners and fishermen will lead to institutional changes (rules of the game) that are obeyed together to maintain the continuity of fishing activities. Institutional that occurs in coastal communities is an interaction between economic agents to achieve certain goals such as welfare. The purposes of this study are 1) Analyzing institutions in fishing efforts using Slerek boat related to working relationship patterns and income dynamics 2) Analyzing the institutional impact on the employment of coastal communities. Based on the results of this qualitative resea

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Pashkova, T. V. "Ways of formation of the name «boat» in dialects of the Karelian language." Bulletin of Ugric studies 11, no. 3 (2021): 479–85. http://dx.doi.org/10.30624/2220-4156-2021-11-3-479-485.

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Introduction: the article presents the results of a comparative analysis of the Karelian-language names of boats, taking into account the data of closely related Karelian languages. The article considers the issue of interaction of languages and cultures of the Karelian, Finnish and Russian population, resulting from close contact, which is confirmed by the presence of Russian and Finnish loan words in the Karelian language and Karelian loanwords in the dialects of the Russian language. Objective: to identify the ways of formation of boat names in the dialects of the Karelian language. Researc

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23

McCormick, Mark I., Sue-Ann Watson, Stephen D. Simpson, and Bridie J. M. Allan. "Effect of elevated CO 2 and small boat noise on the kinematics of predator–prey interactions." Proceedings of the Royal Society B: Biological Sciences 285, no. 1875 (2018): 20172650. http://dx.doi.org/10.1098/rspb.2017.2650.

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Oceans of the future are predicted to be more acidic and noisier, particularly along the productive coastal fringe. This study examined the independent and combined effects of short-term exposure to elevated CO 2 and boat noise on the predator–prey interactions of a pair of common coral reef fishes ( Pomacentrus wardi and its predator, Pseudochromis fuscus ). Successful capture of prey by predators was the same regardless of whether the pairs had been exposed to ambient control conditions, the addition of either playback of boat noise, elevated CO 2 (925 µatm) or both stressors simultaneously.

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Manjunath, B. C., K. S. Vinay Kumar, S. Madan Kumar, M. P. Sadashiva, and N. K. Lokanath. "5-[(1-Benzyl-1H-1,2,3-triazol-4-yl)methyl]-5H-dibenzo[b,f]azepine." Acta Crystallographica Section E Structure Reports Online 69, no. 12 (2013): o1763. http://dx.doi.org/10.1107/s1600536813030547.

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In the title compound, C24H20N4, the azepine ring adopts a boat conformation. The dihedral angle between the benzene rings fused to the azepine ring is 49.40 (9)°. The triazole ring makes a dihedral angle of 77.88 (9)° with the terminal phenyl ring. In the crystal, molecules are linkedviaC—H...π interactions and a parallel slipped π–π interaction [centroid–centroid distance = 3.7324 (9), normal distance = 3.4060 (6) and slippage = 1.526 Å], forming a three-dimensional network.

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25

Chizinski, Christopher J., Dustin R. Martin, Daizaburo Shizuka, and Kevin L. Pope. "Bipartite networks improve understanding of effects of waterbody size and angling method on angler–fish interactions." Canadian Journal of Fisheries and Aquatic Sciences 75, no. 1 (2018): 72–81. http://dx.doi.org/10.1139/cjfas-2016-0176.

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Networks used to study interactions could provide insights to fisheries. We compiled data from 27 297 interviews of anglers across waterbodies that ranged in size from 1 to 12 113 ha. Catch rates of fish species among anglers grouped by species targeted generally differed between angling methods (bank or boat). We constructed angler–catch bipartite networks (angling method specific) between anglers and fish and measured several network metrics. There was considerable variation in networks among waterbodies, with multiple metrics influenced by waterbody size. Number of species-targeting angler

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Sridhar, B., K. Ravikumar, M. Mahesh, and V. V. Narayana Reddy. "(3Z)-2-Benzyl-3-benzylidene-6-phenyl-2-azabicyclo[2.2.2]octan-5-one." Acta Crystallographica Section E Structure Reports Online 63, no. 3 (2007): o1500—o1501. http://dx.doi.org/10.1107/s1600536807009038.

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In the title compound, C27H25NO, all three rings in the azabicyclo[2.2.2]octane unit adopt a boat conformation. An intermolecular C—H...O interaction forms a characteristic R 2 2(14) motif dimer in the crystal packing.

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Liu, Jian, and Bing Li. "Dragon Boat Straight Road Racing Rowing Technique Mechanical Movement Analysis." Applied Mechanics and Materials 509 (February 2014): 44–46. http://dx.doi.org/10.4028/www.scientific.net/amm.509.44.

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At present the main characteristics of kinematics rowing technique at home and abroad of Dragon Boat: master the time at each stage of a pitch period ratio is an important factor to improve the dragon boat racing results. The time of each phase distribution is paddling rhythm, paddling rhythm time allocation of domestic and international dragon boat teams have a common law. The time of each phase ratio and the displacement ratio corresponding to a proportional relationship, and ultimately affect the total displacement of a propeller or. Paddling rhythm and tempo are two different concepts of m

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Yartsev, Yegor, Pavel Lyubashov, Vyacheslav Povstyanoy, Mykhailo Povstyaniy, and Iryna Lebedyeva. "Crystal structure of ethyl 2-methyl-5,10-dioxo-4-phenyl-5,10-dihydro-4H-11-thia-1,4a-diazabenzo[b]fluorene-3-carboxylate." Acta Crystallographica Section E Crystallographic Communications 74, no. 2 (2018): 124–26. http://dx.doi.org/10.1107/s2056989018000117.

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The title compound, C24H18N2O4S, crystallizes in the orthorhombic P212121 space group, indicating the existence of only one enantiomer with an S configuration of the chiral center in the crystal phase. The dihydropyrimidine ring adopts a twist-boat conformation while the quinone ring is slightly non-planar. In the crystal, molecules are linked by weak C—H...O and C—H...S hydrogen bonds and C—H...π interactions. In addition, a short intermolecular S...N contact of 3.250 (3) Å indicates an interaction between the S atom and the π-system of the thiazole ring.

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Tao, Sun. "Big Data System for Dragon Boat Rowing Action Training Based on Multidimensional Stereo Vision." Mathematical Problems in Engineering 2022 (May 18, 2022): 1–8. http://dx.doi.org/10.1155/2022/1594741.

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With the rapid advancement of artificial intelligence technology and the widespread use of sensing technology in education, human-computer interaction teaching has gradually developed in sports and education. Traditionally, teachers explain and demonstrate the fundamentals of movements first, then organize exercises, and students gradually consolidate technical movements through repetition. This process requires teachers to repeatedly explain, such that students can develop movement concepts, and to assist students in correcting their movements through practice. Eventually, students can master

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Thianwiboon, Mongkol. "Parameter Tuning of the Autonomous Boat in Fish Farming Industry with Design of Experiment." Engineering Journal 24, no. 5 (2020): 217–25. http://dx.doi.org/10.4186/ej.2020.24.5.217.

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This research studied the feasibility in applying the flight controller of the unmanned aerial vehicle on a pontoon boat in fish farming industry. A small-scale autonomous pontoon boat has been built, equipped with the open-hardware flight controller, GPS receiver, Inertial Measurement Units (IMU) and the magnetometer. A 23 factorial design based on Design of Experiment (DOE) is carried out to study the influence of three parameters (turn_rate, turn_angle and damping) on the response variable (peak-to-peak deviation from the desired trajectory). Total 24 experiments have been conducted by sett

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31

Formaggia, L., E. Miglio, A. Mola, and N. Parolini. "Fluid–structure interaction problems in free surface flows: Application to boat dynamics." International Journal for Numerical Methods in Fluids 56, no. 8 (2008): 965–78. http://dx.doi.org/10.1002/fld.1583.

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32

Ieremenko, Nataliia, and Liu Jiale. "Comparison of the effectiveness of different methods of engaging youth in Dragonboat." Scientific Journal of National Pedagogical Dragomanov University Series 15 Scientific and pedagogical problems of physical culture (physical culture and sports), no. 3K(188) (March 21, 2025): 132–36. https://doi.org/10.31392/udu-nc.series15.2025.03k(188).28.

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The article explores the effectiveness of various methods for engaging youth aged 18-19 in dragon boat rowing in China. Contemporary motivation strategies are examined, including social media, school programs, public events, and sports camps. The methodology includes surveying 30 participants and analyzing their engagement through both qualitative and quantitative indicators. The results show that integrating traditional culture with modern technologies increases interest in the sport. The most effective methods were hands-on training sessions that allowed personal experience and team interact

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Wakabayashi, Tomoki, and Tokihiro Katsui. "Propeller Open-Water Test Method for Hybrid Contra Rotating Propeller." Journal of Marine Science and Engineering 13, no. 5 (2025): 858. https://doi.org/10.3390/jmse13050858.

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The Hybrid Contra Rotating Propeller is a developing propulsion system that combines a conventional single-shaft propeller with a POD propeller to achieve high energy-saving performance through a Contra Rotating Propeller. In this paper, a new towing tank test method for the Hybrid Contra Rotating Propeller was suggested. By conducting seven patterns of propeller open-water tests and measuring the individual propeller performance and the interaction between the propeller and the POD, the propeller’s mutual interaction can be obtained. Towing tank tests for a study ship were conducted, and the

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Putri, Sabrina Mustika, Haryono Haryono, and Rizki Setiawan. "Relasi Kuasa Nelayan Pemilik Kapal dengan ABK di Pelabuhan Karangantu, Serang Banten." EDU SOCIATA ( JURNAL PENDIDIKAN SOSIOLOGI) 7, no. 1 (2024): 240–49. http://dx.doi.org/10.33627/es.v7i1.2004.

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This study examines the complex social structure and power relationships among fishermen in Karangantu Harbor. The focus of this research highlights the interaction between independent ship owners and ship crew members (ABK). The social structure is characterized by three distinct strata: land-based investors, boat-owning fishermen, and crew members, with crew members heavily dependent on others for their livelihood. Using a descriptive qualitative case study approach, this research examines how ownership of assets such as boats and fishing equipment not only facilitates production but also es

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La Ola, Taane, Nur Isiyana Wianti, and Muslim Tadjuddah. "Bridging and Bounding Social Capital: Social Interaction Analysis of Islets Islanders in Wakatobi Marine National Park." Sodality: Jurnal Sosiologi Pedesaan 8, no. 1 (2020): 30–46. http://dx.doi.org/10.22500/8202028593.

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The purpose of this paper is to provide an overview of the differences in the strength of social capital that is bonding and bridging two community groups, namely land-dwellers and Sama Bajo boat-dwellers in three islands in Wakatobi Marine National Park. This study used a post-positivistic research paradigm, and the primary data were collected by using a questionnaire to 240 respondents who represented the group of land-dwellers and Sama Bajo boat-dwellers on the islands of Wangi-wangi, Kaledupa, and Tomia. This research was also supported by qualitative data through in-depth interviews from

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Manjula, M., B. C. Manjunath, N. Renuka, K. Ajay Kumar, and N. K. Lokanath. "2-(4-Fluorophenyl)-4-(thiophen-2-yl)-2,3-dihydro-1,5-benzothiazepine." Acta Crystallographica Section E Structure Reports Online 69, no. 11 (2013): o1608. http://dx.doi.org/10.1107/s1600536813025889.

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In the title compound, C19H14FNS2, the seven-membered thiazepine ring adopts a slightly distorted twist boat conformation. The dihedral angle between the benzene rings is 53.6 (1)°. The mean plane of the thiazepine ring is twisted by 34.3 (7)° and 36.6 (7)° from the benezene rings. A C—H...F interaction generates stacking of molecules along theabplane.

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Bagué, Alec, Joris Degroote, Toon Demeester, and Evert Lataire. "Dynamic Stability Analysis of a Hydrofoiling Sailing Boat using CFD." Journal of Sailing Technology 6, no. 01 (2021): 58–72. http://dx.doi.org/10.5957/jst/2021.6.1.58.

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Abstract. This paper describes the study of the dynamic stability of a hydrofoiling sailing boat called the “Goodall Design Foiling Viper”. The goal of Goodall Design is to make hydrofoiling accessible to a wider public, whereas it was previously reserved for professional sailors at the highest level of the sport. To allow for safe operation, stability is an essential characteristic of the boat. The aim of this work is to find a strategy to perform a dynamic stability analysis using computational fluid dynamics (CFD), which can be used in a preliminary design stage. This paper starts by establ

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Indrawan, I. Gede Fajar, I. Made Kusuma Negara, and Putu Agus Wikanatha Sagita. "ANALISIS PENGARUH KUALITAS WEBSITE TERHADAP KEPUTUSAN PEMBELIAN TIKET PADA FAST BOAT BLUEWATER EXPRESS SERANGAN, BALI." Jurnal IPTA 10, no. 1 (2022): 67. http://dx.doi.org/10.24843/ipta.2022.v10.i01.p07.

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This research aims to find out the website quality of BlueWater Express e-commerce website through several stages, namely: identification of dimensions Usability, Information Quality, and Sevice Interaction Quality. Further reviewed how the influence of Website Quality from e-commerce website BlueWater Express can affect the decision to purchase BlueWater Express fast boat tickets. Data collection techniques using observations, interviews, questionnaires, literature studies, and documentation. Data collection techniques use non-probability sampling with accidental sampling procedure. Analysis

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Rauter, G., L. Baumgartner, J. Denoth, R. Riener, and P. Wolf. "Optimisation of the mean boat velocity in rowing." Computer Methods in Biomechanics and Biomedical Engineering 15, no. 8 (2012): 815–24. http://dx.doi.org/10.1080/10255842.2011.561794.

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Astuti, Assyfa Anggi, I. Wayan Mustika Maha Putra, and Eka Arie Yuliyani. "Occupational Noise Induced Hearing Loss in Motor Boat Fisherman." Green Medical Journal 5, no. 3 (2023): 121–27. http://dx.doi.org/10.33096/gmj.v5i3.120.

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Introduction: Noise Induced Hearing Loss is a person's hearing loss either partially or completely which is permanent and can affect one or both ears caused by continuous exposure to noise in the work environment. One of the causes of Noise Induced Hearing Loss (NIHL) is working as a motorboat fisherman. Content: NIHL can arise as a result of the interaction between genetic factors and environmental factors with the role of internal and external risk factors. The diagnosis of NIHL can be established through history taking, physical examination such as otoscopy and tuning fork tests, as w

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Calderón-Alvarado, Eduardo, Abigail Uribe Martínez, Eduardo Cuevas, and Luis Amado Ayala-Perez. "Interacciones potenciales entre embarcaciones menores y zonas de agregación de tortugas marinas en Isla Arena, Campeche." JAINA Costas y Mares ante el Cambio Climático, no. 5 (November 7, 2023): 25–40. http://dx.doi.org/10.26359/52462.0223.

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Within the Gulf of Mexico, five of the seven species of sea turtles are distributed and carry out essential stages of their life cycle. The marine habitats of sea turtles are subject to various threats, including bycatch and boat traffic. The aim of this study was to identify, in the marine portion of Isla Arena, Campeche, sites of use of space for its feeding, internesting, and migration stages, as well as potential zones of interaction with small vessels distributed in the study area. For this, satellite tracking of three species of post-nesting female sea turtles: 1 hawksbill turtle (Eretmo

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Oishi, Takeshi, Keisuke Fukaya, Takaaki Sato, and Noritaka Chida. "Crystal structure of (+)-(1S,5S,6S,7S,10S,11S,16S)-16-hydroxy-7-(methoxymethoxy)-11,15,18,18-tetramethyl-3,13-dioxo-2,4-dioxatetracyclo[12.3.1.0^1,5.0^6,11]octadec-14-en-10-yl benzoate." Acta Crystallographica Section E Crystallographic Communications 77, no. 12 (2021): 1234–38. http://dx.doi.org/10.1107/s2056989021011518.

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In the fused tetracyclic system of the title compound, C29H36O9, the five-membered dioxolane ring adopts a twist conformation; the two adjacent C atoms deviate alternately from the mean plane of the other three atoms by −0.252 (6) and 0.340 (6) Å. The cyclohexane, cyclohexene and central cyclooctane rings show chair, half-chair and boat-chair forms, respectively. There are three intramolecular C—H...O interactions supporting the molecular conformation, with one S(6) and two S(7) graph-set motifs. In the crystal, intermolecular O—H...O hydrogen bonds connect the molecules into a helical chain r

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Shi, Yao-Cheng, and Hong-Yang Duan. "Two seven-membered heterocycles with 1,2-diaza ring N atoms: 3,5,7-triphenyl-1,2-diazacyclohepta-1(7),2-diene and 3,7-bis(2-hydroxyphenyl)-5-phenyl-1,2-diazacyclohepta-1(7),2-diene." Acta Crystallographica Section C Crystal Structure Communications 69, no. 10 (2013): 1177–80. http://dx.doi.org/10.1107/s0108270113023792.

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The title compounds, 3,5,7-triphenyl-1,2-diazacyclohepta-1(7),2-diene, C23H20N2, (I), and 3,7-bis(2-hydroxyphenyl)-5-phenyl-1,2-diazacyclohepta-1(7),2-diene, C23H20N2O2, (II), constitute the first structurally characterized examples of seven-membered heterocycles with 1,2-diaza ring N atoms. Compound (I) crystallizes in the space groupP\overline{1}, with two independent molecules in the asymmetric unit that differ in the conformation of one of the phenyl rings, while (II) crystallizes in the space groupC2/c. The C5N2ring in each of (I) and (II) adopts a twist-boat conformation. Compound (I) ex

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Morea, Gregory F. "The Establishment and Management of a Production Data Exchange Group." Journal of Ship Production 21, no. 02 (2005): 73–80. http://dx.doi.org/10.5957/jsp.2005.21.2.73.

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The design and construction of any marine vessel designed on a computer-assisted design (CAD) system, from a nuclear aircraft carrier to the smallest work boat, requires the interaction of many electronic databases, all of which must be continually updated for the work to proceed. The exchange of this information, especially geometry, in digital format is accomplished using many different tools and techniques. Much has been presented to the marine community about the tools used, such as the Initial Graphics Exchange Specification (IGES) and the Standard for the Exchange of Product Model Data (

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Hu, Peixin, and Mehrdad Zangeneh. "Investigations of 3D Turbulent Flow Inside and Around a Water-Jet Intake Duct Under Different Operating Conditions." Journal of Fluids Engineering 121, no. 2 (1999): 396–404. http://dx.doi.org/10.1115/1.2822221.

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In this paper the flow field in the intake duct of a model water-jet unit is studied by using a commercial 3D CFD code. In order to model the intake duct/hull interaction, the computational domain includes a large section of the hull in the vicinity of the intake duct opening. Appropriate boundary conditions are used on the far upstream and downstream of the duct inlet in order to minimize the effect of the domain boundaries on the flow field in the vicinity of the intake duct. Computations are performed for different boat speeds and flowrates. In addition, the effects of the impeller shaft, s

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Morales-Rincon, Nataly, Eduardo Morteo, and Christian Alejandro Delfín-Alfonso. "Influence of artisanal fisheries on the behaviour and social structure of Tursiops truncatus in the South-western Gulf of Mexico." Journal of the Marine Biological Association of the United Kingdom 99, no. 8 (2019): 1841–49. http://dx.doi.org/10.1017/s002531541900078x.

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AbstractBehavioural plasticity in animals is tested whenever competitive interactions for space and/or food resources occur between wildlife and human activities. This study uses the concepts of operational and non-operational interactions between bottlenose dolphins (Tursiops truncatus) and artisanal fisheries in Alvarado, to search for differences in behaviour, age structure and group size. We conducted 20 surveys between 2015 and 2016, and recorded 64 groups by means of scan sampling from either a research boat or a fixed vantage point. Average dolphin group size was small (${\bar{\rm x}}$

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Zheng, Jiawen, Naigeng Wu, Pengfei Ren, Wenjian Deng, and Dong Zhang. "Multiscale Factors Driving Extreme Flooding in China’s Pearl River Basin During the 2022 Dragon Boat Precipitation Season." Water 17, no. 7 (2025): 1013. https://doi.org/10.3390/w17071013.

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This study delves into the once-in-a-century extreme precipitation events in the northern region of the Pearl River Basin during the 2022 Dragon Boat Festival period. Through a comprehensive analysis spanning various temporal scales, from synoptic-scale systems to subseasonal oscillations, including the rare triple-peaked La Niña phenomenon, we illuminate the intricate interactions among these factors and their impact on extreme precipitation events. Specifically, we present a conceptual model of multiscale interaction systems contributing to extreme precipitation in the BeiJiang Basin. Our fi

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Kliegel, Wolfgang, Gottfried Lubkowitz, Steven J. Rettig, and James Trotter. "Structural studies of organoboron compounds. XLVII. 6,8-Bis(1-cyano-1-methylethyl)-2,4-diphenyl-1,3,5-trioxa-6,8-diaza-2,4-diboracyclooctane." Canadian Journal of Chemistry 69, no. 8 (1991): 1217–21. http://dx.doi.org/10.1139/v91-181.

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The reaction of N,N′-bis(1-cyano-1-methylethyl)-N,N′-dihydroxymethanediamine with phenylboronic acid gives 6,8-bis(1-cyano-1-methylethyl)-2,4-diphenyl-1,3,5-trioxa-6,8-diaza-2,4-diboracyclooctane in good yield. Crystals of the product are monoclinic, a = 9.2681(9), b = 15.946(1), c = 15.491(1) Å, β = 95.946(8)°, Z = 4, space group P21/n. The structure was solved by direct methods and was refined by full-matrix least-squares procedures to R = 0.047 and Rw = 0.064 for 2936 reflections with I ≥ 3σ(I). The central eight-membered O(BON)2C ring has a boat–boat ("saddle") conformation and features cr

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Zaman, Muhammad Qomaruz, and Ronny Mardiyanto. "Development of marker detection method for estimating angle and distance of underwater remotely operated vehicle to buoyant boat." International Journal of Advances in Intelligent Informatics 7, no. 3 (2021): 249. http://dx.doi.org/10.26555/ijain.v7i3.455.

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The paper proposes a Marker Detection Method for Estimating the Angle and Distance of Underwater Remotely Operated Vehicle (ROV) to Buoyant Boat. To keep the ROV aligned with the boat, a marker and visual recognition system are designed. The marker is placed facing down under the boat and a method is developed to recognize the angle and distance of the marker from a facing up camera on the ROV. By considering space, payload, heat dissipation, and buoyancy in a micro class ROV, there are limited options for computing power that can be utilized. This challenge demands a lightweight visual recogn

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Hartley, Lisa K., Joel R. Anderson, and Anne Pedersen. "Process in the Community, Detain Offshore or ‘Turn Back the Boats’? Predicting Australian Asylum-seeker Policy Support from False Beliefs, Prejudice and Political Ideology." Journal of Refugee Studies 32, no. 4 (2018): 562–82. http://dx.doi.org/10.1093/jrs/fey048.

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Abstract Over the past few decades, there has been a progressive implementation of policies designed to deter the arrival of people seeking protection. In Australia, this has included offshore processing and towing boats of asylum seekers away from Australian waters. In a community survey of 164 Australians, this study examined the predictive role of false beliefs about asylum seekers, prejudice and political ideology in support of three policies. Multiple hierarchical regression models indicated that, although political ideology and prejudice were significant predictors of policy support, fal

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