• Title/Summary/Keyword: Boat

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Study on the Appropriate Method Applying Gross Tons for Compensation for Damage of Coastal Fisheries in Case of Boat Change (연안어업의 어업손실보상시 어선대체로 인한 톤수변경의 경우 타당한 톤수적용 방안에 관한 연구)

  • Seo, Sang-Bok;Ryu, Dong-Gi
    • The Journal of Fisheries Business Administration
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    • v.42 no.2
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    • pp.31-45
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    • 2011
  • Costal fisheries use small boat. The boats are frequently substituted with newly made boat or proper boat. When the boat which is substituted with another one after the fixed date for compensation is estimated for fisheries loss by public project, it is matter that which boat is the object for estimating average catch of fish. There are three ways in practical business. They are based on the date of spot probe, the date of conference for compensation and fixed date for compensation. In case of applying the first and the second ways, as the object of compensation is not fixed, there is problem that estimated result can be changed depending on changing boat tons even after the date of spot probe and the fixed date for compensation. Most of all, these ways are against Attached Form No.4 of the Enforcement Ordinance of Fisheries Law which regulate to calculate average catch of fish applying result of fishery for retroactively counted 3 years from the year before the year in which administrative measure day is. The other side, in applying boat tons based on the fixed date for compensation, estimated result of compensation will not change even boat substituted after the fixed date for compensation. Even though applying tons based on the fixed date for compensation, a problem still remains. If the boat get bigger after the fixed date for compensation, the then boat size must be applied for calculating average catch. But the boat get smaller, the changed boat size must be applied. Because changed small boat would be damaged less than the previous boat. And decrease in catch by changing boat into small one is not due to the project but due to the personal responsibility. This will help to increase objectivity and reliance on the compensation result. As the other objects are fixed based on the fixed date for compensation in the Act on Acquisition and Compensation of Land and Others for Public Project, it can be balanced with other object.

Chang in the Small Boat Building Industry: the Case of the Lake Washington Ship Canal (소규모 boat공업의 입지에 관한 연구 : Seattle 의 Washington 운하지역의 경우)

  • Lim, Yeong Dae
    • Journal of the Korean Geographical Society
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    • v.24
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    • pp.1-18
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    • 1981
  • 본 연구는 미국에서 boat공업의 중심지 중의 하나인 Seattle의 boat 공업의 입지와 그 변화를 고찰하므로서 소기업의 입지를 구명하려고 하였다. 본 연구에서는 먼저 Seattle에서 소규모 boat제조업체가 가장 많이 집중한 Washington호와 Shilshole 만간의 운하지역을 연구지역으로 선정하려 이 지역내에 입지하고 있는 boat 제조업체의 기업주와 interview한 결과를 기본자료로 이용하였다. 이상에서 얻어진 결과는 다음과 같았다. 연구지역의 소규모 boat 공업은 boat제조에 흥미와 능력을 가진 기업가들이 boat 공업에 유리한 Seattle의 환경의 영향을 받아 그들의 기업을 그들의 오랜 거주 지역에서 시작하므로서 발생하게 되었다. 그러나 담수를 지향하는 이 공업의 입지상의 특색, 원료공급처와 제품판매처의 위치, 주위의 지형 그리고 지방정부의 정책에 기인하여 이 공업은 Chittenden Locks와 Portage 만간의 운하지역에 그 입지가 국한되었다. 다시 이 지역내에서는 주위의 지형과 토지이용, 기업의 재정적인 능력 때문에 이 운하지역에 연해있는 기존공장 혹은 건물을 이용하여 입지하게 되었다. 입지후에 이 공업은 원료공급처와 제품판매처와의 강한 linkage를 형성하고 있다. 더구나 원료공급처의 희소성에 기인한 공간적 독점과 소비자 및 제품의 특성 때문에 연구지역의 대부분의 소규모 boat 제조업체는 바로 근처에 있는 원료공급처 및 소비자와 긴밀한 contact를 하고 있고 이러한 contact를 통하여 그들의 입지를 존속시키고 있다. 한편 Seattle 이 가지고 있는 boat 공업에 유리한 기업환경의 덕택으로 이들 소규모 boat 제조업체들은 수요의 계절적인 변동에서 초래되는 노동력의 공급 때문에 곤란을 받을 뿐 장기적인 불황에 직면한 적은 없다. 이리하여 이들 업체들은 이러한 계절적인 변동에 대처하기 위해 생산 input 의 조절, 주위의 기존공장이나 건물의 병합을 통한 연속적인 확장 혹은 그들의 action space 내에 있는 기존공장이나 건물을 이용한 이동등과 같은 입지변화를 보여왔을 뿐이다. 이리하여 연구지역의 소규모 boat공업은 Seattle의 경제 system 내의 주요 subsystem의 하나로서 활발히 움직이고 있다. 그러나 만약 기업의 외부환경에서 초래되는 stress, 즉 주민의 소득저하, 타 recreation 산업이 쇠퇴하게 되면 이 공업 또한 쇠퇴될 것이다. 요컨대 담수 지향성과 관련된 입지상의 특색을 제외하고는 연구지역의 소규모 boat 공업은 타 소규모 공업과 동일한 입지상의 특색을 가지고 있다.

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A Study on Structural Strength Assessment of Polyethylene Boat (폴리에틸렌 보트의 구조강도 평가에 관한 연구)

  • Cho, Seok-Swoo;Kwak, Won-Min;Ham, Bum-Sik;Jo, Young-Chul
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.14 no.3
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    • pp.1045-1053
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    • 2013
  • Boat or yacht hull has been built mainly by FRP composite materials. FRP boat hull manufacturing begins to be restricted after the year 2000 under international regulation on ocean environment safety. The alternative of FRP has been proposed by many boat builders and high strength aluminium is considered as its standard material. But high strength aluminium is very expensive as boat hull material. In this study, boat hull is considered to be built by high density polyethylene and its structural strength is estimated by longitudinal strength test method on small craft. Tensile strength of polyethylene boat hull material is higher than that of FRP boat hull material. But safety factor of polyethylene boat hull is more than that of FRP boat hull. These study results indicate structural integrity and quality control of polyethylene boat is better than those of FRP boat.

A Study on Hull Form Development of Polyethylene Boat (폴리에틸렌 보트의 선형 개발에 관한 연구)

  • Cho, Seok-Swoo
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.14 no.10
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    • pp.4726-4732
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    • 2013
  • The Domestic boat has been manufactured by hull form of typical foreign boat. In this study, design environment for polyethylene boat is analysed to create new hull form of the boat and design elements are extracted from existing boats and consumer preferences. Key elements in polyethylene boat design are three words "semi-classic, urban and sporty". Hull resistance and engine power for new developed boat can be expected by Orca 3D program. This result indicates that engine power of the boat is much less than that of commercial boat.

Evaporation Characteristics of Aluminum by Using Surface-treated Graphite Boat (표면처리된 흑연 보트를 이용한 알루미늄의 증발 특성)

  • Jeong, J.I.;Yang, J.H.
    • Journal of the Korean institute of surface engineering
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    • v.42 no.1
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    • pp.1-7
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    • 2009
  • Resistive heating sources are widely used to prepare thin films by vapor deposition because they are cheap, and easy to install and handle in vacuum system. Graphite is one of materials used to make the resistive heating source, but until now only limited applications have been possible as it reacts easily with evaporating materials at high temperature. In this study, evaporation characteristics of aluminum have been investigated by using graphite boat thermally treated with BN powder. The employed graphite boat has been prepared by spray-coating BN power onto the cavity surface of the boat and thermal treatment with aluminum in vacuum at the temperature of more than $1400^{\circ}C$. The voltage-current characteristics as well as resistivity changes of the graphite boat have been investigated during aluminum evaporation according to the applied voltage and time. The evaporation aspect has been picturized during flash evaporation for 40 seconds based on the characterization results. The evaporation rate of the graphite boat has been compared with that of BN boat. The graphite boat showed some different characteristics compared with BN boat, in that the evaporation occurred at the last stage of flash evaporation. The film appearance according to the applied voltage has been compared, and also the reflectance of the resulting film has been investigated according to the film thickness. It has been found that the graphite boat thermally treated with BN powder can be used for aluminum evaporation without problem.

A Study on the Performance of the Traditional Korean Fishing Boats from the View Point of Modern Sailing Boat Design (현대 세일링 보트의 설계관점에서 본 전통어선의 성능고찰)

  • Park, Gen-Ong;Kim, Dong-Joon;Park, Jong-Heon;Choi, Byung-Moon
    • Journal of the Society of Naval Architects of Korea
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    • v.42 no.1 s.139
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    • pp.50-56
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    • 2005
  • The performance of Traditional Korean Fishing Boat is surveyed based on Report on Investigation of Korean Fishing Boat. The characteristics of Traditional Korean fishing Boat of hull form, rudder, sail are studied from the view point of modern sailing boat design. As a result we find her hull form is an excellent candidate of mother ship for modern boat design and the great sized rudder of Traditional Korean Fishing Boat makes a role of the centerboard of modern sailing host. And also we find the sail of Traditional Korean fishing Boat is more useful for sailing against the wind direction than an ordinary Lug sail.

An unmanned boat capable of real-time video streaming (실시간 영상 스트리밍 무인 보트)

  • Lee, Dong-Hee;Moon, Sangook
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2016.10a
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    • pp.537-539
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    • 2016
  • Recently, unmanned technologies interest increased. An unmanned boat is not directly on people and radio can be controlled by boat. Used for military unmanned boat was first developed in the United States Navy. In recent years, for hobby, for pesticide application, for water activities, expanding exploration in various ways, including for use. The role of a variety of unmanned boat above, In the case of a variety of unmanned probe of the role of unmanned boat on the boat people who don't be able to come to the vision of the advantage can not be exploring places like blind spot. In this paper, The Blind Spot are explorations of places such as streaming real-time as possible, an unmanned boat using Raspberry Pi that support implementation. Receiver input signals of an unmanned boat to the transmitter under the manipulation of, using smartphones hotspot feature Raspberry Pi and smartphones, network connection. Via Raspberry Pi motion of using real-time streaming using unmanned boat.

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Drag Reduction of a Three-Dimensional Car Model Using Passive Control Device (수동제어 장치를 이용한 3 차원 자동차 모형의 항력감소)

  • Yi, Wook;SaGong, Woong;Choi, Hae-Cheon
    • Proceedings of the KSME Conference
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    • 2007.05b
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    • pp.2868-2872
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    • 2007
  • In this study, a passive control using a boat-tail device is conducted for a three-dimensional car model in ground proximity. We consider various boat-tails and investigate the mechanism of drag reduction by them. By varying the length and slant angle of boat-tail, we obtain drag reductions up to 40%. From the oil-surface flow visualization and hot-wire measurement, the drag reduction by the boat-tail is characterized by the shear-layer instability and reattachment on the boat-tail, forming a small separation bubble at the upstream part of boat-tail surface, resulting in the delay of main separation and drag reduction. At high slant angles, the flow fully separates and drag is nearly same as that of no control.

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A Study on the HANSUN Boat Type for Development of Sailing Boat (세일링보트 개발을 위한 한선선형 연구)

  • Park, Gen-Ong;Kim, Dong-Joon
    • Proceedings of the Korea Committee for Ocean Resources and Engineering Conference
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    • 2003.10a
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    • pp.53-59
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    • 2003
  • The Study of Hansun(Traditional Fishing Boat of Korea) is based on Fishing Bost Investigation Report which began in 1921. The Report was completed in 1927 with the conclusion of Southern sea Region and Western sea Region studies which included the investigation of the entire region. Based on this report, this paper surveys Hansun's characteristics style of boat and performance. The First couple of chapters are possibility of combining type of Hansun and modern Sailing Boat. As a result we find out that the hull form of Hansun is very similar with that of modern sailing boats and is a good candidate for the mother ship to develop the modern sailing boats for Korean sea.

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Estimating the Economic Value of Boat Fishing Experience Activity Using Travel Cost Method: Focused on Jeju Island's Chagwido (여행비용법에 의한 선상낚시 체험활동의 경제적 가치 추정 : 제주 차귀도를 대상으로)

  • Kang, Seok-Kyu
    • The Journal of Fisheries Business Administration
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    • v.47 no.2
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    • pp.33-41
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    • 2016
  • The purpose of this study is to estimate the economic value of boat fishing experience marine tourism activity in Jeju Island's Chagwido. The economic value is estimated as consumer surplus using count data models including the truncated Poisson model and the truncated negative binominal distribution model. This study collects the effective 504 questionnaires from boat fishing experience tourists in Jeju Island's Chagwido. The truncated negative binominal distribution model was statistically more suitable and valid than other models. The truncated negative binominal distribution model was applied to estimate consumer surplus as economic value from boat fishing experience tourism activity in Jeju Island's Chagwido. A consumer surplus value per trip was estimated as about 209,900 won. The annual economic value from boat fishing experience tourism activity was estimated as 273,700 won in Jeju Island's Chagwido. Consequently, boat fishing experience marine tourism activity has a very large economic value in Jeju Island.