• Title/Summary/Keyword: divers

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The Amur starfishes recognition using the adaptive filter (적응형 필터를 이용한 아무르 불가사리 인식)

  • Kim, Jong Ik;Shim, Hyun Bo;Kim, Sung Rak
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.17 no.4
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    • pp.922-934
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    • 2013
  • The Amur Starfishes, known as give huge damages to shellfish farms, are being removed by only divers and fish net in the wide areas. Therefore, increasing recognition rates of starfishes are desperately required to remove high amounts of Amur Starfishes effectively. Meanwhile, current technology of obtaining the images of starfish distribution has limitation of obtaining color images due to using visible light in the darkness seabed area. In this research, we have used infrared ray, which is very penetrated, and strong against noise that comes from floating objects under the water, in order to solve current problems. As a result, we have acquired better images to analyze recognition rates of starfishes, and also able to received much satisfied recognition rate results for 88.7% of Amur Starfishes by adopting the most suitable adaptive filter method.

The Color Palette for Planning Exterior Colors of the Apartment in Seoul Area (서울지역 아파트 외장색채 계획을 위한 색채팔레트)

  • 박영순;신인호
    • Archives of design research
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    • v.14 no.1
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    • pp.83-92
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    • 2001
  • Apartment exterior colors have an important effect on the images of cities and communities. Therefore planning the apartment exterior colors have to proceed systematically and synthetically based on the theoretical background. In this research, the first step is to investigate the apartment exterior colors which is located around the Han River in Seoul. And the second step is to survey the images of the S construction company in Korea. The results of this study are as follows: 1. The trends of apartment exterior colors on the basis of 1996 are showed differently. Bright and high saturation colors are more used after 1996, and divers color combinations are more tried than before. 2. Common customer Has positive images about the S construction company such as young, fresh, confidence and smart. Also they want the other images such as comfort, ease and coziness. 3. Two color combination palettes were proposed in this research. The first color combination is blue and yellow which is based on the dear and smart images. And the second color combination is green and orange which is based on the comfort and ease images.

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A Study on the Social Identity Described in the Dress of Pearl S. Buck′s Novels (Pearl S. Buck 소설의 복식에 나타난 사회적 정체성 연구)

  • 김희선
    • Journal of the Korea Fashion and Costume Design Association
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    • v.4 no.2
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    • pp.5-29
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    • 2002
  • This study was to analyze the social identity described in the dress of the American novelist Pearl S. Buck's (1892-1973) major works. A novelist pursues varying and refined expressions in an effort to convey to readers the character' identities of his or her own creation. In particular, Pearl S, Buck was a great writer who was awarded the Novel Literature Prize, and since her work The Good Earth recorded a world-wide bestseller, she might well be called a popular novelist. She depicted well her characters' identities from divers viewpoints with her unique delicacy and realistic expressions. For this study, the following seven works which are considered to feature the dresses for character's identity well were selected out of her 85 works: The Good Earth (1931), Sons(1932), The Mother (1934), A Housed Divided (1935), The Hidden Flower (1952), Love and the Morning Calm (1953) and Letter from Peking (1957). For an analytical tool, the content analysis method was used. In order to systematically review the social identity described in the dress individuals' identity were classified into the following categories based on the identity theories: Social identity were divided into ① age identity ② sex, gender identity ③ economic identity ④ occupational identity ⑤ political identity ⑥ religious identity ⑦ kinship identity ⑧ regional identity. The characters' age identity, sex, gender identity, economic identity, occupational identity, political identity, religious identity, kinship identity, regional identity were depicted by their dresses and physical features. All in all, it is hoped that this study would provided important cues to the understanding of the other party's identity through his or her dresses in mutual relationship: It is believed that this study would be useful because they are arranged through the analysis of the dresses featured in the great writer's works using a consistent framework of analysis.

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A Case Study of the Underwater Blasting Using Emulsion Explosives (에멀젼폭약을 사용한 수중발파 사례)

  • An, Bong-Do;Lee, Ik-Joo;Heo, The-Moon
    • Explosives and Blasting
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    • v.25 no.2
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    • pp.71-78
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    • 2007
  • In many cases of underwater blasting in South Korea, the special blasting is mainly used for deepening harbor, installing gas pipes, or well blasting to build a bridge. The procedure of well blasting is almost same with shaft blasting, but the difference is that water is filled in before blasting. In case of deepening blasting under water, the first step like drilling, arranging explosives, and wire connection is done on a barge, then the next step such as charging and tamping is accomplished under water by expert divers. Therefore, underwater blasting needs precise and exact plan before blasting. In this paper, authors would like to introduce a case of underwater blasting for deepening the Busan new port with emulsion explosives and non-electric detonators in order to get some of 8,500TEU out sized container vessels entered into the port and to make safe. Considering environment and vibration, the blasting was controlled to minimized the damage to the lighthouse nearby. It will be great help to many other blasting sites where emulsion explosives and non-electric detonators are used for underwater blasting through this case.

The Effect of Repetitive Dive on Physiological Reactions and Stress Hormone in No Decompression Limit (무감압한계 잠수환경에서의 반복잠수가 생리적 반응 및 스트레스호르몬에 미치는 영향)

  • Kim, Jun-Mo;Kim, Sung-Gil
    • The Korean Journal of Applied Statistics
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    • v.21 no.6
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    • pp.1027-1035
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    • 2008
  • This research is aimed to investigate the effect of repetitive dive on physiological reactions, change of stress hormones in no decompression limit of sport SCUBA dive, an emerging recreational activity recently. In order to compare physiological reactions prior to and after the initial dive and after repetitive dive at a certain depth of a place, eight adult male divers with more than forty dives, who reside in Busan and were certified, were selected. The research results obtained from the procedures described above are follows: First, for physiological reactions, heart rates, temperatures, and systolic blood pressures had significant difference among prior to and after the initial dive and after the repetitive dive, while diastolic blood pressures did not show remarkable difference as it increased before and after the first dive but decreased following the repetitive dive again. Second, for change of stress hormones, it was not significantly different prior to and after the initial dive and following the repetitive dive, as well as before and during the first dive and the repetitive dive.

Evaluation of Structural Integrity of the ISO-based Moon Pool Type Diver Boats (ISO 기반 Moon Pool형 다이버 보트 구조 건전성 평가)

  • Kang, Byoung-mo;Oh, Woo-jun;Na, Hyun-ho;Choi, Ju-seok
    • Journal of the Korean Society of Marine Environment & Safety
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    • v.24 no.5
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    • pp.597-603
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    • 2018
  • This Study investigates the Structural Integrity of Boats for Divers, given increased demands for Underwater and Recreational use. We conducted research on a Small Catamaran with a Moon Pool in the center of the Hull, using the Finite Element Method to calculate allowable stress based on the ISO Rule. We computed the coefficients defined in ISO 12215-5 and TC118.1225-7, and determined the suitability of using the ISO Standard and Allowable Stress Design method (ASD) by applying Longitudinal Bending Moment, Torsional moment, and Bottom Slamming Load. We also applied the Ultimate Strength Design Method (LFRD) using Finite Element Analysis (FEA). As a Result of this Research, it was found that ships with a Moon Pool do have Structural Integrity according to their Design in accordance with ISO and KR Regulations.

A Study on Jean-Renaudie's Design Philosophy and Method for Urban Housing Project - Focusing on the City of Ivry-sur-Seine - (쟝 르노디의 도시 집합주거에 관한 디자인 철학과 방법에 대한 연구 - 이브리 쒸르쎈느 시의 집합주거를 중심으로 -)

  • Bae, Dae-Seung
    • Journal of architectural history
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    • v.21 no.4
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    • pp.93-106
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    • 2012
  • Jean Renaudie was an French architect who designed many urban social housing in France, especially in the city of Ivry-sur-Seine, near Paris, with Renee Gailhoustet, co-responsible as the architect of this city, communist city from long time. He was formed as an architect by the influence of Auguste Perret and Marcel Lods, two french architects, great specialist of the structure of concrete. He formed the Atelier Montrouge with Pierre Riboulet, Gerard Thurnauer, Jean-Louis Verret, and proposed many innovative projects, based on geometrically pure forms and masses. After he joined Renee Gailhoustet, the architect of the City of Ivry-sur-Seine, as a co-responsible for the redevelopment of this ideologically communist city. His urban housing concept approached to take the function as a space to welcome the urban life of the resident, not to offer the physical provision of housing repeating the simple housing unity. He accentuated the social role of Housing project not only as the level of a personal home but also as that of an urbanism. He offered divers choice opportunity to the citizen by the urban functional complex through his efforts to make characteristic complex of urban housing, and by the consequence, the innovative result was done which ameliorated the quality of life for resident. This is an exceptional example, not only in France but even in whole over the world. But the maintenance of building against the oldness and the closing shop of inside commercial zone of Jeanne Hachette became a problem, not only that of physical amelioration but also that of spiritual conservation of the works of Jean Renaudie.

Predicting Factors on the Increase in Computer Entertainment Behavior with Data Mining (데이터마이닝을 이용한 컴퓨터 오락추구 행동 상승의 예측요인)

  • Lee, Hyejoo;Jung, Euihyun
    • The Journal of Korean Association of Computer Education
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    • v.20 no.2
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    • pp.47-55
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    • 2017
  • The purpose of this study is to investigate the predicting factors on the increase in computer entertainment behavior with the sample from KYPS data. The results of the Decision Tree model revealed that: (1) Neighbor supervision, self-belief, parent attachment, life satisfaction, and peer attachment were significant for the increase in computer entertainment behavior. (2) Neighbor supervision, class participation and leisure satisfaction were significant for male students' increase in computer entertainment behavior. (3) Optimistic disposition, teacher attachment, and peer attachment were significant for female students' increase in computer entertainment behavior. These results suggest that meaningful factors and their divers interactions should be considered in methods and programs for regulating and preventing the increase in computer entertainment behavior.

Monitoring and Impact of Marine Ecological Disturbance Causing Organisms on an Oyster and Sea Squirt Farm (해양 교란생물로 인한 굴과 우렁쉥이 양식장의 피해 현황 조사)

  • Park, Juun;Lee, Taekjun;Kim, Donghyun;Kim, Philjae;Kim, Dong Gun;Shin, Sook
    • Korean Journal of Environmental Biology
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    • v.35 no.4
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    • pp.677-683
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    • 2017
  • The Korean aquaculture industry was generally began in the 1970s and has gradually increased. Now, the number of households is about 7,068 and the scale of an aquaculture farm is about 248,014 ha; the value of all production in the industry is estimated to be about 1602.2 billion won. The aquaculture industry is very valuable and important for future food resources. However, the aquaculture industry was damaged by several marine ecological disturbance causing organisms. The Ascdiella aspersa colonized on the shell of scallop and then scallops were detached from rope. The patterns of damage in the aquacultures were observed in Tongyeong (oyster), Geojedo (oyster), and Gangneung (sea squirt) in June, 2017, as well as in Tongyeong (oyster) in November, 2017 by SCUBA divers. The species Halichondria bowerbanki, Bugula neritina, Mytilus galloprovincialis, Balanus amphitrite, Ascidiella aspersa, Ciona intestinalis, Didemnum sp, Styela plicata in Tongyeong, M. galloprovincialis, A. aspersa, C. intestinalis, D. vexillum, S. plicata in Geojedo, and M. galloprovincialis in Gangneung were all usually found in their farms. The marine ecological disturbance causing organisms gave rise to a reduced number of aquaculture products.

A Design of a TV Advertisement Effectiveness Analysis System Using SNS Big-data (SNS Big-data를 활용한 TV 광고 효과 분석 시스템 설계)

  • Lee, Areum;Bang, Jiseon;Kim, Yoonhee
    • KIISE Transactions on Computing Practices
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    • v.21 no.9
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    • pp.579-586
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    • 2015
  • As smart-phone usage increases, the number of Social Networking Service (SNS) users has also exponentially increased. SNS allows people to efficiently exchange their personal opinion, and for this reason, it is possible to collect the reaction of each individual to a given event in real-time. Nevertheless, new methods need to be developed to collect and analyze people's opinion in real-time in order to effectively evaluate the impact of a TV advertisement. Hence, we designed and constructed a system that analyzes the effect of an advertisement in real-time by using data related to the advertisement collected from SNS, specifically, Twitter. In detail, Hadoop is used in the system to enable big-data analysis in parallel, and various analyses can be conducted by conducting separate numerical analyses of the degrees of mentioning, preference and reliability. The analysis can be accurate if the reliability is assessed using opinion mining technology. The proposed system is therefore proven to effectively handle and analyze data responses to divers TV advertisement.