Relevant bibliographies by topics / Boats

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Boats'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 August 2024

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Journal articles on the topic "Boats"

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Oksana Telak, Jerzy Telak, and Tomasz Niemczewski. "Motor Boats in the Technology of HDPE with RIB Type Construction." SAFETY & FIRE TECHNOLOGY 61, no. 1 (June 27, 2023): 166–78. http://dx.doi.org/10.12845/sft.61.1.2023.10.

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Aim: In 2022, on the lakes Zegrzynskie and the Orzysz, there were carried out tests of a motor boat with a hull made in HDPE technology and a construction similar to a hybrid boat (rigid-inflatable boat, RIB). The aim of the tests was to examine the operational capabilities of the SRB53 motor boats and obtain preliminary information on the configuration of the equipment. Introduction: High performance motor boats should constitute standard equipment of lifeguards. There are motor boats on the market using high density polyethylene (HDPE) for the construction of their hulls. Methodology: The survey involved 57 people, experts, representatives of public administration, NATO soldiers, police, and rescue services, as well as enterprises and non-governmental entities operating in the field of water rescue. The working hypothesis was assumed that probably motor boats as a combination of HDPE technology with a hybrid boat design could match the operational rib boats and have an advantage in terms of durability and resistance to hull damage. A diagnostic survey was used on a small sample with research techniques, i.e., observation, interview, and test, as well as research tools in the form of an observation sheet. The research was prepared, carried out and closed in the following order: development of the research procedure, collection of research material, development of results, theoretical analysis of the obtained material and derivation of conclusions. The scope of the boat study included going away and nailing to the quay, the boat’s behaviours when making turns and abrupt turns in both directions at different speeds, and the hull durability test. Results: The test results and opinions were positive, many advantages of the hull of the tested boat were indicated, with one negative parameter – a higher weight compared to traditional rescue boats. The working hypothesis was proved: motor boats in HDPE technology with a hybrid boat design are equal in terms of operation to RIB boats and are more durable and resistant to impacts. Innovative HDPE technology is useful for boat production. Due to the purpose, different configuration and equipment of the boat should be assumed. Keywords: motor boats, water rescue, polyethylene, technology, innovation
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Yeroshkina, Svitlana. "COST-EFFECTIVENESS OF SAILCLOTH SELECTION FOR DIFFERENT CLASSES, TYPES AND SPECIES OF SAILING BOATS." EUREKA: Physics and Engineering 5 (September 29, 2017): 22–29. http://dx.doi.org/10.21303/2461-4262.2017.00417.

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Results over of theoretical analysis for the selection of corresponding basic material of sail clothes fabric for a different classes, types and views of sailing boats are given in the article. Sailing boats needs the proper of yachting equipment, that goes both with the manipulation of boats and rigging (in accordance of views, classes and types of sailing boats). The material for sailing is elected by participants of competitions depending of the area of navigation, the strength of wind, the whole distances and boat’s possibilities, coming from technical criteria and parameters of the boats. Full analysis of economic efficiency is conducted and price politics of different material’s types for sails in accordance with its chemical composition is analyzed. The most effective type of factory fabric is certain for sewing of sails for racing boats. For a deep scientific analysis and practical realization of the investigated process an accent is done on the exposure of the most popular sailing sailcloth materials used only on the famous world regattas. These results are very important and needed foremost for the first-class skippers of modern world racing boats, to identify most practical and super persistent to the wind, the sun, salt water materials that use in sewing of racing sails. Necessary analyses and descriptions of scientific article concerning sewing of racing sails also will be useful to the yachtsmen that only begin the way in the world of cruise yachting and sporting yachting races. Importance of faithful direction at the choice of material for sails is done not only for the decision element of victories in races and regattas, but also for an answer on many questions, constrained concerning speed of boat, norm of coverage of sails and, in the end, with maneuverability, boat speed.
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Akhmad, Amir, Asdi, Muhammad Yunus Ali, and Anwar. "The Process of Making a Pinisi Boat in Bantobahari District, Bulukumba Regency, Indonesia." European Journal of Engineering and Technology Research 7, no. 5 (October 19, 2022): 70–75. http://dx.doi.org/10.24018/ejeng.2022.7.5.2837.

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Pinisi boats are made by expert hands called panrita lopi (experts in making boats). The pinisi boat has proven its worth by conquering the vast oceans and exploring various countries in the world. This study aims to identify the process of making pinisi boats in Bontobahari District, Bulukumba Regency. This research was conducted in Bontobahari District, Bulukumba Regency, South Sulawesi Province. Data were obtained through in-depth and structured interviews, using key informants who were determined purposively. Key informants consist of; the owner of a pinisi boat-making business, panrita lopi. The analytical technique used in this research is descriptive analysis. in this case, the researcher will describe the process or stages of making a pinisi boat in Bonto Bahari District, Bulukumba Regency. The results showed that the process of making a pinisi boat includes eight stages, namely, preparation, cutting the keel, working on the boat body which includes installation of boat walls, installation of frames, and making of decks, work on pinisi boat rooms, work on sails and sails for pinisi boats, painting of pinisi boats, installation of engines and rudders for pinisi boats, and launching of pinisi boat.
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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 (December 26, 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 different kinds of boats present in Bago-Pulupandan coastal waters. Factors identified to affect dolphin behavior towards boats include boat type (motorized or not), size, and distance from dolphins. Dolphin behavior towards boats were categorized as either positive, negative, or neutral. Results showed that the dolphins mostly exhibited neutral behavior towards boats, regardless of state and boat type. The dolphins’ passive behavior around vessels may make them more vulnerable to boat strikes, especially from speeding motorized boats. Recommendations include strict regulation of boat speed and traffic within their core habitat to minimize injuries, net entanglement, and avoid mortality.
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KIRVESLAHTI, A., K. MIELONEN, K. IKONEN, W. CUI, M. SUVANTO, and T. A. PAKKANEN. "UNDERWATER SLIDING PROPERTIES: EFFECT OF SLIDER SHAPE AND SURFACE WETTABILITY." Surface Review and Letters 23, no. 05 (August 24, 2016): 1650042. http://dx.doi.org/10.1142/s0218625x16500426.

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A dynamic test method for the measurement of the underwater sliding properties of model boats has been developed. Surface-modified model boats were examined to assess how the surface wettability properties affect sliding. Along with the surface properties, the influence of the boat shape was considered. We studied various coatings in the contact angle range of 3–162[Formula: see text] with two model boat shapes. The hydrophobicity of the surfaces influenced the sliding speed of the model boat depending on the boat shape. The method is applicable to study sliding properties of model boats with different surfaces in variable flow conditions.
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Aydin, Muhsin, and Aydin Salci. "Geometrical Characteristics of Fishing Boats Series of ITU." Marine Technology and SNAME News 44, no. 02 (April 1, 2007): 125–37. http://dx.doi.org/10.5957/mt1.2007.44.2.125.

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In the present paper, first 13 hull forms of fishing boats with different block coefficients were generated. Later, 26 hull forms of fishing boats with two different ratios of length to beam were generated by utilizing previous hull forms of fishing boats mentioned. In total, 39 fishing boats were generated. This series is called "Fishing Boats Series of ITU" (Istanbul Technical University). In this Series, the forms of the body stations and beams of the boats are the same for equal block coefficient and different lengths. The ratio of the beam of any station at any waterline to the beam of boat, Bz/B varies with respect to block coefficient, CB. These variations have been represented with the third-degree polynomials. Thus, a hull form of the fishing boat in the desired length and block coefficient can be obtained by using these polynomials. For this purpose, a computer program called "Turetme" was developed. Finally, by using this program, three hull forms of fishing boats were obtained and presented here.
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Collet, Julien, and Henri Weimerskirch. "Albatrosses can memorize locations of predictable fishing boats but favour natural foraging." Proceedings of the Royal Society B: Biological Sciences 287, no. 1932 (August 5, 2020): 20200958. http://dx.doi.org/10.1098/rspb.2020.0958.

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Human activities generate food attracting many animals worldwide, causing major conservation issues. The spatio-temporal predictability of anthropogenic resources could reduce search costs for animals and mediate their attractiveness. We investigated this through GPS tracking in breeding black-browed albatrosses attracted to fishing boats. We tested for answers to the following questions. (i) Can future boat locations be anticipated from cues available to birds? (ii) Are birds able to appropriately use these cues to increase encounters? (iii) How frequently do birds use these cues? Boats were spatially persistent: birds searching in the direction where they previously attended boats would encounter twice as many boats compared with following a random direction strategy. A large proportion of birds did not use this cue: across pairs of consecutive trips ( n = 85), 51% of birds switched their foraging direction irrespective of previous boat encounters. Still, 15 birds (27%) were observed to closely approach (approx. 0.1–1 km) where they previously attended a boat while boats were no longer there. This is less than the distance expected by chance (approx. 10–100 km), based on permutation control procedures accounting for individual-specific spatial consistency, suggesting individuals could memorize where they encountered boats across consecutive trips. We conclude albatrosses were able to exploit predictive cues from recent boat encounters but most favoured alternative resources.
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Johansson, Lasse, Erik Ytreberg, Jukka-Pekka Jalkanen, Erik Fridell, K. Martin Eriksson, Maria Lagerström, Ilja Maljutenko, Urmas Raudsepp, Vivian Fischer, and Eva Roth. "Model for leisure boat activities and emissions – implementation for the Baltic Sea." Ocean Science 16, no. 5 (October 2, 2020): 1143–63. http://dx.doi.org/10.5194/os-16-1143-2020.

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Abstract. The activities and emissions from leisure boats in the Baltic Sea have been modeled in a comprehensive approach for the first time, using a new simulation model leisure Boat Emissions and Activities siMulator (BEAM). The model utilizes survey data to characterize the national leisure boat fleets. Leisure boats have been categorized based on their size, use and engine specifications, and for these subcategories emission factors for NOx, PM2.5, CO, non-methane volatile organic compounds (NMVOCs), and releases of copper (Cu) and zinc (Zn) from antifouling paints have been estimated according to literature values. The modeling approach also considers the temporal and spatial distribution of leisure boat activities, which are applied to each simulated leisure boat separately. According to our results the CO and NMVOC emissions from leisure boats, as well as Cu and Zn released from antifouling paints, are significant when compared against the emissions originating from registered commercial shipping in the Baltic Sea. CO emissions equal 70 % of the registered shipping emissions and NMVOC emissions equal 160 % when compared against the modeled results in the Baltic Sea in 2014. Modeled NOx and PM2.5 from the leisure boats are less significant compared to the registered shipping emissions. The emissions from leisure boats are concentrated in the summer months of June, July and August and are released in the vicinity of inhabited coastal areas. Given the large emission estimates for leisure boats, this commonly overlooked source of emissions should be further investigated in greater detail.
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Lund, Thomas. "Variasjon i praksis? Sammenføyingsteknikk – og materiale i nordnorske jernalderbåter." Primitive Tider, no. 21 (December 16, 2019): 45–62. http://dx.doi.org/10.5617/pt.7535.

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Variation in practice? Joining-techniques in North Norwegian iron age boatsThe iron age burial custom where individuals are placed in seafaring vessels has traditionally been associated with large ships or smaller clinker build boats, such as the famous Oseberg ship found in Norway or the Nydam boat from Denmark. The overall impression of boats from this period have thus been that most of the vessels were constructed and joined with iron rivets consisting of a square nail and a dish shaped washer called a rove. A closer study of archaeological remains from boat burials in Northern Norway has revealed that this might not have been the case. By investigating the number and location of the rivets within the burial, several boats appear not to have been purely “clinker built”, but also fastened by a so called “sewing technique”, traditionally associated with older or Sami boatbuilding traditions. In addition, one of the newly found boat burials from Hillesøy in Troms county contained a boat completely lacking iron rivets. The main result of detailed comparison of all Iron Age boat burials from Northern Norway is exemplified by a selection of boats demonstrating varied use of joining-techniques. Furthermore, this article explores the contextual setting of these boats, arguing that the chosen boatbuilding techniques affected the functional aspects of the vessels and is thus related to their maritime activities.
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Ahmad Ilham Ramadhani. "Feasibility of Electric Fishing Boats based on Evaluation of Hydrostatic Forces and Resistance." Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 116, no. 2 (May 4, 2024): 75–87. http://dx.doi.org/10.37934/arfmts.116.2.7587.

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Conventional gasoline engine fishing boats have several disadvantages, such as high exhaust emissions, high fuel consumption, and low service life. The disadvantages of the gasoline engine can be resolved by using the electrical engine. Electrical fishing boats is an improvement on conventional boat to reduce the fuel consumption and emissions. In realizing an electric fishing boat, a feasibility analysis of the design, shape and weight that can be accommodated is required. The feasibility of an electric fishing boat has been successfully carried out by simulating the boat on Maxsurf Software. The aim of this research is to analyze feasibility of conventional boats by designing electric fishing boats. Improving feasibility is carried out by calculating hydrostatic forces and resistance. Electric fishing boats design using the simulation model in Maxsurf Modeller and simulation of resistance in Maxsurf Resistance at speeds of 1, 3 and 5 knots, with Wyman method. The modeling results show that the electric fishing boat design has a pointed front configuration with a V-shaped bottom. Main dimensions LoA 3.49 m, width 0.8 m; height 0.5 m; and a draft of 0.2 m, the boat produces a hydrostatic force which includes a displacement of 301.5 kg, a midship draft and submerged area of 0.2 m, a wet area of 3.08 m2, and a waterline of 0.5 – 1.5 m. Testing 1, 3, and 5 knots, the boat experienced resistance of 26.11 N, 234.96 N, and 652.73 N respectively. The power required for the boat to operate was 13,43 W, 362.66 W, and 1678,97 W. The feasibility of designing an electric fishing boat is the main key to developing an electric fishing boat.
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More sources

Dissertations / Theses on the topic "Boats"

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Pataky, Jeremy. "Possible Boats." The University of Montana, 2007. http://etd.lib.umt.edu/theses/available/etd-05072007-223912/.

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RASCH, LINNÉA. "Stolsunderrede – Nitra boats." Thesis, KTH, Produkt- och tjänstedesign, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-233498.

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Syftet med detta projekt är att utveckla ett stolsunderrede justerbart i höjd- samt långskeppsled. Underredet är utvecklat till företaget Nitra boats och mer specifikt åt båt Nitra 29, en höghastighetsbåt som kan gå i cirka 100 knop vilken kommer få ett uppfällbart tak. Nitra vill även CE-märka synvinkeln, vilket ställer krav på antropometriska mått så att de passar den största delen av befolkningen. I dagsläget finns ingen kommersiell lösning på problemet. Under projektets gång gjordes en förstudie som visade på att många båtförare upplever smärta under båtfärd, till följd av de höga krafter som båtarna, och därmed passagerarna, utsätts för vid färd. Många av dessa förare får dessutom kroniska skador som följd. Stort fokus har således lagts på att utforma ett underrede som kan dämpa krafterna så att dessa skador inte uppkommer från början. Resultatet av undersökningen genererade i ett koncept som uppfyller kraven från Nitras håll och dessutom är dämpat, med hänsyn till passagerarna. Produkten är utformad för att estetiskt passa in i Nitras befintliga kollektion, med färg- och formval. Materialen är av sådan typ att de klarar av de väder och yttre förhållanden som kan påfresta det. Vidare har mycket fokus lagt på att dimensionera stolen så att den håller för de uppkommande krafterna, men inte vara för stort och tungt att det inte får plats i de erhållna dimensionerna. Projektet är avgränsat på så sätt att inga undersökningar på den befintliga båten gjorts, då detta inte varit möjligt, utan endast teoretiska beräkningar är gjorda, vilka då ger en uppfattning om hur stora krafterna egentligen blir. För att kunna göra detta har en rad antaganden och förenklingar gjorts.
The purpose of this project is to develop a chair base that is adjustable both height- and lengthwise. The base has been developed for the company Nitra boats and more specifically for the boat model Nitra 29, a high-speed boat which can go up to 100 knots and will soon have a foldable roof. Nitra also wants to CE-mark the angle of sight which will impose anthropometrical measures so that most of the population can use it. In today’s market, there are no solutions. During the project, a prestudy was done that showed that many boat drivers suffer from pain during the boat ride, a following of the high forces which also affects the passengers. Unfortunately this has resulted in many drivers receiving chronic diseases. Most of this work has therefore focused to form a chair base that can suppress the forces and stop the injuries from happening. The result of this work’s study generated a concept which lives up to the requirements from Nitra and suppresses the forces for the passenger’s own safety. The product is constructed to esthetically fit in Nitra’s current collection, with the right choice of colors and form. The materials have been selected to handle any weather and other outer threats. Moreover, lots of time was spent on dimensioning the chair so that it would not break accordingly to the upcoming forces. During this project, no specific tests were done on the Nitra 29 since it was not available. Therefore, only theoretical calculations – based on assumptions and simplifications - were made which gave a hint of how big the forces could be.
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Creasman, Pearce Paul. "The Cairo Dahshur boats." Texas A&M University, 2005. http://hdl.handle.net/1969.1/4852.

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Excavations conducted in A.D. 1894 and 1895 by French archaeologist Jean- Jacques de Morgan at the funerary complex of the ancient Egyptian Middle Kingdom pharaoh Senwosret III on the plain of Dahshur revealed some unparalleled finds which included five or six small boats. These boats provide a unique opportunity in nautical archaeology—to study contemporaneous hulls. Today, only four of the "Dahshur boats" can be located with certainty; two are in the United States, one in the Carnegie Museum of Natural History in Pittsburgh and one in the Field Museum of Natural History in Chicago. The remaining two are on display in The Egyptian Museum, Cairo. Since their excavation these boats remained relatively inconspicuous until the mid-1980s when a study of the two hulls in the United States was conducted. However, the two boats in Cairo remained largely unpublished. This thesis combines personal observation and recording of the Cairo boats over two summers to reveal more unique characteristics of the hulls and will facilitate a future study of the group as a whole. Each boat is discussed individually and is further divided into its major components by order of construction.
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Hubbs, Travis. "“Civilizations without Boats”: Stories." Thesis, University of North Texas, 2011. https://digital.library.unt.edu/ark:/67531/metadc84222/.

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This collection consists of a critical preface and nine short stories. Extrapolating from the work and legacy of Michel Foucault, the preface theorizes a genre of “heterotopian fiction” as constitutive of a fundamentally ethical approach to narrative creativity, distinguishing its functional and methodological characteristics from works that privilege aesthetic, thematic, or technical artistry. The stories explore spaces of madness, alterity, incomprehensibility, and liminal experience. Collection includes the stories “Mexico,” “Civilizations without Boats,” The Widow’s Mother,” “Guys Like Us,” “Everything You’d Hoped It Would Be,” “A Concerned Friend,” “Crisis Hotline,” “Coast to Coast,” and “The Ghosts of Rich Men.”
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Chivers, Marc Leonard. "Shetland vernacular boats, 1500-2000." Thesis, University of the Highlands and Islands, 2017. https://pure.uhi.ac.uk/portal/en/studentthesis/shetland-vernacular-boats-15002000(6e129275-2698-4ea1-8784-3c669e9c49fc).html.

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This thesis provides a more accurate narrative of the origin and development of the Shetland vernacular boat in all its forms. Shetland, being treeless, imported boats from Norway, described as 'kits,' implying that they were quick and easy to assemble. New evidence suggests that this is incorrect; instead, boats-in-boards were rough-cut smuggled components that took longer and required a higher degree of boatbuilding skill to construct than previously acknowledged. This new evidence also establishes that boatbuilding began in Shetland c.1780, some 27 years earlier than formerly thought. Scholars espouse that Shetland boats were of lineal Norse descent. Analysis of late nineteenth century indigenous boats found some Norse features, but, when hull-forms, and methods of construction were compared with similar craft from Faroe and Norway it was discovered that Shetland boats diverged from the west Norwegian Oselvar (that retained a hull-form, and many construction features found in the Norse period) proving that indigenous boats were not of direct Norse descent; instead they were a unique Shetland product. Subsistence, ferrying, and recreational boat use had been neglected by previous researchers. This thesis corrects this imbalance, discovering that boat ownership was ubiquitous across all strata of society with subsistence and ferrying use remaining unaltered for several centuries. By c.1880 competitive boating had become popular. Although vernacular in origin, these new racing boats were influenced by construction methods from elsewhere. The new evidence suggests xiii that the continual development of the Maid Class made what was once an egalitarian sport into an elitist one, and, ironically, this contributed to the disappearance of the vernacular boat. Road transport superseded vernacular craft, exemplified by the introduction of the roll-on-roll-off ferries during the mid 1970s, and it was a combination of these factors that caused Shetlanders to drift away from their vernacular boat heritage.
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Rabby, Md Hasib Mahmud. "Tethered drone for rescue boats." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-290819.

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Human has a great interest in aerial devices from very ancient days. The journey was started by kites and is still going on with the invention of airplane, helicopter, rocket,and many more. Drone is the latest field of scientist’s research which is a miniature of a helicopter. It has a great impact on military unit, navigation, and rescue mission. Inrecent days we can see its use in defense and attack strategies among the developed countries. There are many ways in which the use of drones in practical circumstances can be further explored. For example, in rescue missions, it is sometimes difficult for rescuers to reach the spot of the accident, which might be in the middle of a sea or an ocean. A navigation technology that will lead them towards the destination therefore can be of immense use. Rescue organizations like the Swedish Sea Rescue Society (SSRS) are in lack of such a technology that can assist them further in their mission. A tethered drone can act as navigation guidance for them to reach the destination very quickly. It will save time and fuel by reaching the destination via the shortest possible way. Its birds’ eye technology and sensor will broaden the chances of successful rescues. The current similar technologies have some drawbacks. An ordinary drone is generally powered by a battery and therefore has limited flight time. During the flight, it can record and sends a live video stream to a base station via the mobile network. The information collected is intended to be used to assist in crucial rescue decisions such as which boat to use, rescue crew size, what instruments to carry, and so forth. A tethered drone can fly longer than the average flight time. Due to being powered from the ground with wire, the drone gets constant power supply that does not depend on batteries with limited life. The main aim of this thesis is to design a system in which a drone can fly longer in a fixed position and altitude and to find suitable wire for wiring up and ensure the drone’s weight balance. Da-Jiang Innovations spark drone has been used for implementing the project as a model drone and the task is divided into few parts by testing process. Dronesflight time limitations have been overcome and longer flight time has been achieved. Also, because of testing, a few other limitations have been found.
Människan har alltid haft ett stort intresse för flygande objekt sedan långt tillbaka.Resan började med drakar och intresset pågår fortfarande med uppfinnigar somflygplan, helikopter, raket och många fler. Drönare är det senaste forskningsområdetsom är en miniatyr av en helikopter. Det har stor inverkan på militära enheter,navigering och räddningsuppdrag. Under de senaste dagarna kan vi se dess användningi försvars- och attackstrategier bland de utvecklade länderna.Det finns många sätt på vilket användningen av drönare under praktiska omständigheterkan utforskas ytterligare. Till exempel i räddningsuppdrag är det ibland svårt förräddare att nå platsen för olyckan, som till exempel kan vara mitt i ett hav.Navigeringsteknik som leder räddningstjänsten mot destinationen kan därför vara tillstor nytta. Räddningsorganisationer som Swedish Sea Rescue Society saknar sådanteknik som kan hjälpa dem ytterligare i deras uppdrag. En kabel bunden drönare kanfungera som navigeringsvägledare för dem att nå destinationen snabbare. Det spararbåde tid och bränsle genom att nå destinationen på kortast möjliga väg. Dessfågelperspektiv och sensor kommer att öka chanserna till framgångsrika räddningar.Den nuvarande liknande tekniken har vissa nackdelar. En vanlig drönare drivsvanligtvis av ett batteri och har därför begränsad flygtid. Under flygningen kan denspela in och skicka en live videoström till en basstation via mobilnätet. Den insamladeinformationen är avsedd att användas för att hjälpa till med viktiga räddningsbeslut somtill exempel vilken båt som ska användas, räddningsbesättningens storlek, vilkainstrument som ska bäras och så vidare.En bunden drönare kan flyga längre än den genomsnittliga flygtiden på grund av attden drivs från marken med kabel får drönaren konstant strömförsörjning som inte berorpå batterier med begränsad livslängd.Huvudsyftet med denna avhandling är att utforma ett system där en drönare kan flygalängre i en fast position och höjd och att hitta en lämplig ledare för kabeldragning ochsäkerställa drönarens viktbalans. Da-Jiang Innovations drönare Spark har använts föratt genomföra projektet som en model drönare och uppgiften är uppdelad i få delargenom testprocess. Drönarnas flygtidsbegränsningar har övervunnits och längre flygtidhar uppnåtts. Dessutom har ny begränsningar hittats efter flera tester har utförts.
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Damianidis, Kostas. "Vernacular boats and boatbuilding in Greece." Thesis, University of St Andrews, 1991. http://hdl.handle.net/10023/7116.

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This work presents a study of the vernacular boats of modern Greece. A new typology of boats is offered, and an account is given of tools and boatyard practice, design and construction techniques. Evidence for these subjects is drawn from field surveys, museum collections, iconographic studies, and interviews with old boatbuilders. Although most of the information presented comes from the first half of the 20th century, background information from the 18th and 19th centuries is also covered. This longer historical perspective is particularly important in making comparisons between 20th century practices and the boatbuilding techniques of the past. There is evidence for the existence of two main periods of technical change in the industry, namely, the late 18th century, when new methods such as lofting were introduced, and the late 19th century, when changes in the wider shipbuilding industry initiated a process of decline in vernacular boatbuilding. At the same time however, a number of older techniques, for example certain moulding methods, survived at least into the first part of the 20th century. This work offers new insights into the design methods involved in the control of hull-form during "skeletonfirst" boatbuilding from the last two hundred years. It also offers an analysis of the structural integrity and strength of vernacular boats and shows how the structure of boats has evolved across time to incorporate new techniques and changes in boat function.
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Damianidis, Kostas. "Vernacular boats and boatbuilding in Greece." Online version, 1989. http://ethos.bl.uk/OrderDetails.do?did=1&uin=uk.bl.ethos.316164.

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Philipson, Carl David. "Fast Patrol Boats i Peace Support Operations." Thesis, Försvarshögskolan, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:fhs:diva-1713.

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Har storleken någon betydelse?Enligt den amerikanske marina militärteoretikern Milan N. Vego har den detvad avser fartyg vid mellanstatliga konflikter i kustnära farvatten.Denna uppsats syftar till att svara på frågan om samma förhållanden gäller vidPeace Support Operations (PSO).Uppsatsen analyserar Vegos tes, små ytstridsfartygs egenskaper, kraven vidPSO:s och de fall där små ytstridsenheter har verkat vid PSO:s.Slutligen värderas analyserade fakta och frågan besvaras.
The fast patrol boat (FPB) has played an important role in the cold war and inits aftermath. In recent years though, we have seen a development where theFPB:s are disappearing in nation after nation. The American naval theoristMilan N. Vego claims that the FPB:s have a natural role in naval operations innarrow seas during wartime. This essay is trying to answer the question ofwhether this is also true in peace support operations (PSO).Since wartime operations and PSO:s differ in both it’s goals and it’s methods Ihad to break down the methods in to functions. The functions are; anti surfacewarfare (ASuW), anti submarine warfare (ASW), anti air warfare (AAW), minecounter measurements (MCM), command and control (C²) and other functions.To answer the question I started to examine the abilities of the FPB:s, to findout it’s strengths and it’s weaknesses. In the next step I described and examinedthe demands in a PSO with emphasis on the naval tasks. I also tried toanticipate what future PSO:s will probably look like.My next step was to examine the three known cases where FPB:s haveparticipated in PSO:s. Each case was studied and described as a separate case.Finally I have tried to value to what extent the wartime functions have beenused in the studied PSO:s. I then discussed what functions I deemed wasnecessary in order to conduct the PSO:s. My next step was to estimate whetherthe studied cases corresponds to estimated future PSO:s.My conclusion is that the FPB:s are a valuable asset in PSO as well as inwartime operations. The reason for the decline of FPB:s in European navies hasnot been answered in this essay, nor the consequences. This is an interestingsubject for further investigation.
Avdelning: ALB - Slutet Mag 3 C-upps.Hylla: Upps. ChP 02-04
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Busch, Gregory C. "Connectivity for underway Coast Guard patrol boats." Thesis, Monterey, California. Naval Postgraduate School, 1997. http://hdl.handle.net/10945/8144.

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This thesis examines the US Coast Guard patrol boat's ability to effectively exchange operational data while underway. The patrol boat is currently unable to obtain tactical law enforcement information from the central Law Enforcement Information System 2 (LEIS 2) database while on patrol. LEIS 2 provides access to law enforcement information from Coast Guard, FBI, and state and local law enforcement agencies. Availability of this information will alert the boarding team of potentially dangerous situations and heighten their awareness during the boarding, allowing for a safer boarding. This thesis evaluates the current state of the patrol boat's communication system and recommends a solution to its current needs. Current and proposed satellite communication systems are evaluated using the Analytic Hierarchy Process (AHP). Pairwise comparisons are made of multiple decision criteria and the alternatives to obtain a recommended solution. The conclusion of this study is that the patrol boat's future requirements will far exceed the bandwidth available from current satellite systems. Broadband mobile communication systems such as Teledesic and Spaceway are currently under development and show promise. Until broadband service is available, Iridium should be adopted as the solution to the patrol boat's current needs.
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Books on the topic "Boats"

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Ruane, Joanna. Boats, boats, boats. Chicago: Children's Press, 1990.

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ill, Boyd Patti, ed. Boats, boats, boats. New York: Children's Press, 2003.

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Ruane, Joanna. Boats, boats, boats. Danbury, Conn: Grolier Enterprises, 1989.

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Ring, Susan. Boats, boats, boats. Bloomington, Minn: Red Brick Learning, 2005.

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ill, Walz Richard, ed. Big boats, little boats. Racine, Wis: Western Pub. Co., 1990.

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Stickland, Paul. Boats. Milwaukee: Gareth Stevens Pub., 1998.

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Graham, Ian. Boats. Hauppauge, NY: Barron's Educational Series, 1995.

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Barton, Byron. Boats. [New York]: HarperFestival, 1986.

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Barton, Byron. Boats. London: MacRae, 1987.

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Jones, Dilwyn. Boats. London: British Museum Press, 1995.

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Book chapters on the topic "Boats"

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Bearce, Stephanie. "U-Boats." In Top Secret Files, 63. New York: Routledge, 2021. http://dx.doi.org/10.4324/9781003239215-26.

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Lacsina, Ligaya. "Boats of the Precolonial Philippines: Butuan Boats." In Encyclopaedia of the History of Science, Technology, and Medicine in Non-Western Cultures, 1–8. Dordrecht: Springer Netherlands, 2014. http://dx.doi.org/10.1007/978-94-007-3934-5_10279-1.

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Lacsina, Ligaya. "Boats of the Precolonial Philippines: Butuan Boats." In Encyclopaedia of the History of Science, Technology, and Medicine in Non-Western Cultures, 948–54. Dordrecht: Springer Netherlands, 2016. http://dx.doi.org/10.1007/978-94-007-7747-7_10279.

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Whitewright, Julian. "Ships and Boats." In A Companion to Science, Technology, and Medicine in Ancient Greece and Rome, 870–88. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2016. http://dx.doi.org/10.1002/9781118373057.ch52.

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Shaikh, Zeeshan Alli. "Boats in Goa." In Encyclopaedia of the History of Science, Technology, and Medicine in Non-Western Cultures, 1–19. Dordrecht: Springer Netherlands, 2014. http://dx.doi.org/10.1007/978-94-007-3934-5_10210-1.

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Salam, Aziz. "Boats in Indonesia." In Encyclopaedia of the History of Science, Technology, and Medicine in Non-Western Cultures, 1–9. Dordrecht: Springer Netherlands, 2014. http://dx.doi.org/10.1007/978-94-007-3934-5_10239-1.

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Pham, Charlotte Minh Hà. "Boats in Vietnam." In Encyclopaedia of the History of Science, Technology, and Medicine in Non-Western Cultures, 1–23. Dordrecht: Springer Netherlands, 2014. http://dx.doi.org/10.1007/978-94-007-3934-5_10269-1.

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Pham, Charlotte Minh Hà. "Boats in Vietnam." In Encyclopaedia of the History of Science, Technology, and Medicine in Non-Western Cultures, 1–23. Dordrecht: Springer Netherlands, 2015. http://dx.doi.org/10.1007/978-94-007-3934-5_10269-2.

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Bräunl, Thomas. "Boats and Subs." In Robot Adventures in Python and C, 83–87. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-38897-3_8.

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Easterling, K. E. "Boats and boards." In Advanced Materials for Sports Equipment, 94–107. Dordrecht: Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-011-1556-8_6.

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Conference papers on the topic "Boats"

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Morabito, Michael G. "Investigation of Factors leading to Dynamic Instabilities in High-Speed, Shallow Draft Boats." In SNAME Chesapeake Power Boat Symposium. SNAME, 2016. http://dx.doi.org/10.5957/cpbs-2016-008.

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This paper summarizes portions of a multi-year collaborative study on the dynamic stability of high-speed, shallow draft recreational boats, in which the author has played a small role. These boats are powered by outboard engines, and sometimes fitted with propeller tunnels to permit raising the outboard to reduce draft. Some of these boats have been known to exhibit a dynamic instability referred to as “swapping ends” or “spinout,” in which the boat enters into a moderate turn and then suddenly completes a 180-degree turn in a few seconds, pivoting about a location somewhere near the middle of the boat. During these incidents, occupants sitting in the boat can be ejected and then struck by the boat. Some other shallow-draft, high-speed boats have also been shown to have limited or intermittent helm control, also leading to passenger ejection. The danger of intermittent controllability is compounded by the lack of railings, lifelines, or well-defined seating on these boats to prevent ejection.
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Hunley, William H. "The Alexandria Class Dinghy - A Design For Change." In SNAME 12th Chesapeake Sailing Yacht Symposium. SNAME, 1995. http://dx.doi.org/10.5957/csys-1995-010.

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The trade and skills of wooden boatbuilding began to die with the development of fiberglass reinforced plastic boats, and long before 1992 wooden boatbuilding was considered a dead industry. Still, the building of a wooden boat was something that could catch a child's attention; to build and sail a boat of one's own could be a consuming project that would set a pattern for life. In 1990 a program began to build on this premise: to reach out to the troubled youth of the inner cities, teach useable skills, self confidence, and pride of accomplishment by teaching youths to build small wooden boats, then teaching them to sail the boats that they built.
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Peng, H., G. Lacy, Z. J. Huang, and C. C. Hsiung. "Nonlinear Roll Damping of Nova Scotia Inshore Fishing Boats." In SNAME 24th American Towing Tank Conference. SNAME, 1995. http://dx.doi.org/10.5957/attc-1995-037.

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Investigation into the roll damping of Nova Scotia inshore fishing boats, known locally as Cape Island boats has been carried out. The roll damping coefficients are obtained for the computer simulation of Cape boat motion in large waves. Cape boats have low length to beam ratio, very shallow draft, and a deep skeg. Time history of the roll decay tests shows stiff and heavily-damped roll motions which only last for one-and-a-half to two cycles. The four models chosen in the test cover a wide range of Cape boat designs. It is found that the damping coefficients are both nonlinear and roll angle dependent. The data analysis procedure and results are presented in this paper.
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Steen, R. "Fast Rescue Boats." In Surv 6: Surveillance, Pilot & Rescue Craft. RINA, 2004. http://dx.doi.org/10.3940/rina.sur.2004.15.

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Egami, Kazuya, Takeo Kondo, Kazukiyo Yamamoto, Takatomo Oshima, Tatsuya Kakoi, Naoyuki Kigoshi, Hidekazu Yamaguchi, Tetsuo Fukuhara, Yoshimasa Namba, and Naoyuki Hirao. "A Study on a Disaster Relief System for Large-Scale Earthquake Using Pleasure Boats in Tokyo Bay." In ASME 2008 27th International Conference on Offshore Mechanics and Arctic Engineering. ASMEDC, 2008. http://dx.doi.org/10.1115/omae2008-57283.

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The Central Disaster Management Council of the Cabinet Office predicts that an earthquake of magnitude 7 will occur in Metropolitan Tokyo and the Tokai area within 30 years. In preparation for such large-scale earthquakes, the government is considering various measures. In this study, we focus on the ‘Umi no eki (Sea Station)’ system developed by the Maritime Bureau of the Ministry of Land, Infrastructure and Transport, and propose a manual for ‘relief goods transportation’ and ‘stranded-commuter transportation’ using pleasure boats. Since it is important to determine whether pleasure boat owners are willing to voluntarily participate in relief activities at the Umi no eki, we also conducted a survey among pleasure boat owners concerning their awareness of disaster management. As a result, we found that pleasure boat owners are highly willing to participate. This study clarified the restrictions on volunteer activities carried out by pleasure boat owners, and a disaster management manual for pleasure boats was prepared with the objective of constructing a rescue system using pleasure boats in Tokyo Bay.
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Guerreiro, Miguel. "CNG for Commercial, Law Enforcement and Recreational Boats." In ASME/USCG 2017 4th Workshop on Marine Technology and Standards. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/mts2017-0402.

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CNG has significant environmental and economic advantages as a marine fuel in commercial applications as well as law enforcement and recreational use. This paper covers the current technical and business aspects of the current deployment of CNG marine systems for boat propulsion, on-board power generation, fueling operation and the practical considerations that make it all possible today for the different use of boats. The technology and its benefits are reviewed and measurements from existing CNG hybrid boats currently in operation are analyzed. Paper published with permission.
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Clauss, Gu¨nther F., and Andre´ Kauffeldt. "Investigation and Optimisation of Boat Deployment Systems at High Seas." In 25th International Conference on Offshore Mechanics and Arctic Engineering. ASMEDC, 2006. http://dx.doi.org/10.1115/omae2006-92246.

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There is a multitude of seagoing missions such as rescue missions, coast guard and pilot duties, whose success depend on ship-deployed boats. Launching these boats from a mother ship or recovering them by special deployment systems in a broad range of environmental conditions are key operations for a successive mission. In recent years, new boat deployment systems, promising better operational availability at high sea states, have evolved beyond the traditional side-davit system with dual falls. These new systems deploy their boats via stern ramps integrated into the transom of the mother ship, for example seen at numerous rescue cruisers around the world. This paper presents two different boat deployment systems. After a short discussion of the disadvantages of side-davit systems, a new type of a stern boat deployment device, the so called Janssen Docking System [1], is introduced. This system is equipped with an articulated ramp hinged to the stern. Whereas launching operations are less critical, the recovery of boats is quite hazardous. For this operation mode structural forces on critical areas as well as the relative motions between the ramp and the small boat are systematically investigated in model tests. Based on the results of these sea keeping tests the feasibility of the system has been analysed and improvements are recommended. As a second system a floodable dock integrated into a mother ship is presented. For launching and recovering small boats at high seas the swell inside the dock and the resulting relative motions between boat and dock ship are investigated. This leads to critical flow conditions inside the harbour in terms of sloshing waves with heights up to 3 meters. The analysis of local flow phenomena inside the dock dependent on the motion of the ship in a given sea state are the basis for the development of an optimized dock shape. Therefore an existing nonlinear numerical method for unsteady viscous computation based on Volume of Fluid (VOF) methods and Reynolds Averaged Navier Stokes Equations (RANSE) is used to simulate these phenomena. The time domain calculation allows to change local dock shapes systematically for further improvements. To validate the numerical solution the calculated results are compared to sea keeping tests at model scale. The paper concludes with a perspective for the further development of the dock shape.
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"A Shooting Simulator from Boats." In International Conference on Computer Graphics Theory and Applications. SCITEPRESS - Science and and Technology Publications, 2014. http://dx.doi.org/10.5220/0004662200880095.

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Modiga, Alina. "GREEN MOORING LOCATIONS FOR BOATS." In 17th International Multidisciplinary Scientific GeoConference SGEM2017. Stef92 Technology, 2017. http://dx.doi.org/10.5593/sgem2017h/63/s27.111.

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Жукова, Людмила Николаевна. "YUKAGIR BOATS: TRADITIONS AND MODERNITY." In Народы и культуры Северной Азии в контексте научного наследия Г.М. Василевич. Якутск: Институт гуманитарных исследований и проблем малочисленных народов Севера Сибирского отделения РАН, 2020. http://dx.doi.org/10.25693/vasilevich.2020.014.

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Reports on the topic "Boats"

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Ford, Robert D. The Excedrin Headache of ASW: From U-boats to the New Boats. Fort Belvoir, VA: Defense Technical Information Center, May 1997. http://dx.doi.org/10.21236/ada328139.

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Osman, Yomna M. Fisheries and fishing boat building traditions in Egypt during the Islamic period. Honor Frost Foundation, 2023. http://dx.doi.org/10.33583/mags2021.01.

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There is a lack of information about fisheries and fishing boat building traditions in Egypt during the Islamic era (starting18 AH /639 AD/CE), as most sources from this period only focus on commercial or military activities. Therefore, this research refers to the types of boats that were recorded by foreign travelers to Egypt during the period under study. This report highlights that the use of rafts continued in Egypt throughout the Islamic era, as illustrated by Captain Frederick Ludwig Norden the Younger during his travels on the Nile with the Danish Navy in 1737. He noted that the Egyptians used rafts for fishing and for crossing the Nile. In addition, papyrus boats were widely used for fishing and river crossings in the ancient pharaonic era, a tradition that continued into the Islamic period. Finally, wooden boats were also built for the purpose of fishing.
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Eklund, Britta. Disposal of plastic end-of-life-boats. Nordic Council of Ministers, October 2013. http://dx.doi.org/10.6027/tn2013-582.

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Pflug, Lisa A., and Richard H. Love. Distribution of Fishing Boats Off Nova Scotia. Fort Belvoir, VA: Defense Technical Information Center, October 2004. http://dx.doi.org/10.21236/ada427782.

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Hines, James, Hilary Hoynes, and Alan Krueger. Another Look at Whether a Rising Tide Lifts All Boats. Cambridge, MA: National Bureau of Economic Research, August 2001. http://dx.doi.org/10.3386/w8412.

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Silberg, Eric J., and David J. Haas. Developing the Navy's NC Flying Boats: Transforming Aeronautical Engineering for the First Transatlantic Flight. Fort Belvoir, VA: Defense Technical Information Center, December 2011. http://dx.doi.org/10.21236/ada558169.

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Koudijs, Peter. The boats that did not sail: Asset Price Volatility and Market Efficiency in a Natural Experiment. Cambridge, MA: National Bureau of Economic Research, February 2013. http://dx.doi.org/10.3386/w18831.

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Hoxby, Caroline. School Choice and School Productivity (or Could School Choice be a Tide that Lifts All Boats?). Cambridge, MA: National Bureau of Economic Research, April 2002. http://dx.doi.org/10.3386/w8873.

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Noy, Ilan, Miloud Lacheheb, and Madhavi Pundit. The Impact of Tropical Cyclones on Fishing Activities in the Philippines. Asian Development Bank, August 2023. http://dx.doi.org/10.22617/wps230291-2.

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This study looks at fishing activity in the Philippines’ Exclusive Economic Zone in 2012, as well as how it responded to tropical cyclones. The study identifies the main fishing grounds and examines the impact of tropical cyclone speed on vessel position using satellite images and tropical cyclones data. Data suggest that tropical cyclones have a negative impact on fishing activity, with fewer active boats during and after the storm. The most affected locations include the Sibuyan Sea, Visayan Sea, and Panay Gulf. These tropical cyclones were estimated to reduce commercial fishing production by 7,800 tons per day, affecting more than 188,000 families in Western Visayas.
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Hess, A. L. Addendum 1 to CSERs 94-007 and 94-008: Use of 2.2 liter boats in muffle furnace operations at PFP. Office of Scientific and Technical Information (OSTI), January 1996. http://dx.doi.org/10.2172/463555.

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