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An Experimental Study on Development of the Opening Apparatus for Oil Boom (오일펜스 전개장치 개발에 관한 실험적 연구)

  • Jang Duck-Jong;Na Sun-Chol
    • Journal of the Korean Society for Marine Environment & Energy
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    • v.9 no.1
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    • pp.45-54
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    • 2006
  • The study was to review methods by which a ship can unfold and tow an oil boom by attaching the opening apparatus to an oil boom through experiments. The shape and dimension of the opening apparatus were designed with the measurement value of the towing tension load of the oil boom and the dimension of winch drum of the oil boom installed in the ship considered. For the field experiment to identify the performance of the opening apparatus, opening apparatuses were prepared to have the dimension of $3.0m^2$ and $6.0m^2$ which is 91% and 75% of the calculation value for type B and C respectively. As a result, T(kg), the value of tension in type B oil boom according to the towing speed(v) change when two ships are towed together were proved to be $T=920v^{1.1}\;and\;T=500v^{0.9}$ in case the distance is 100 m and 50 m. Based on the result, the dimension of the opening apparatus for type B and C oil boom was calculated as $3.3m^2$ and $8.0m^2$ respectively. When unfolding and towing by attaching the opening apparatus and 200 m of towing line at both ends of type B and type C oil boom, the maximum width of the opening apparatus was shown as 114 m and 95 m in average(width of opening/total length of oil boom: 33% and 57%) in the towing speed of 1.5 kt. It was evaluated that the opening apparatus could concentrate the spilled oil in a good performance. However as far as the increase rate of oil boom opening width according to the length of the towing line is debatable, the increase rate is remarkably reduced when it is lengthened from 100 m to 150 m and to 200 m although it showed extreme increase of 31% and 40% when the length of the towing line was changed from 50 m to 100 m. Therefore, it is inferred that the towing line should be maintained more or less 100 m to get good spread efficiency of the opening apparatus. Additionally, if the towing speed is faster than 1.5 kt, the opening width was narrowed because of the reduced spread efficiency and the shape of the oil boom can be unstable because of the partial sinking of the oil boom, run over waves, or flap of skirt. Thus the reasonable towing speed can be within 1.5 kt for the operation of the opening apparatus.

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GIS-based review of Goguryeo's defense system during the Gungnaeseong Period with the focus on the upper and middle reaches of the Amnok River and the mid-stream region of the Liohe River (GIS를 활용한 고구려 국내성 시기의 관방체계 검토 - 압록강 중상류~요하 중류를 중심으로 -)

  • Hong, Balgeum;Kang, Dongseok
    • Korean Journal of Heritage: History & Science
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    • v.54 no.1
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    • pp.260-279
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    • 2021
  • The Goguryeo kingdom established a unique defense system centered on a series of mountain fortresses. However, modern-day studies on its defense system have tended to focus on how they were positioned and generally consist of little more than individual surveys or introductions to the relevant materials, leaving much to be desired. This study attempts to extend the scope of studies about fortresses dating back to the Goguryeo period, taking into account the limitations of the available materials. As such, this study reviews the defense system of Goguryeo during the Gungnaeseong Period (i.e., the period when Gungnaeseong was the capital of Goguryeo) using the GIS system, with the focus on fortresses that are thought to have been built in the area extending from the middle and upper reaches of the Amnok River to the mid-stream region of the Liohe River, based on the aforementioned studies. The results of the study are as follows. First, the major roads built during the Gungnaeseong Period were as stated in the foregoing studies to some extent. Researchers believed that during the middle period of the dynasty, a major road ran along the Suzihe, Fuer and Xinkai rivers before finally reaching Jian. The study found that fortified walls and fortress strongholds were built along this road. Second, there were seven fortresses between the middle and upper reaches of the Amnokgang River and the midstream region of the Liaohe River. A primary defense line was closely established between the strongholds and the nearby walls, with secondary and tertiary defense lines established more loosely and encompassing a much wider area. Third, regarding the defense system along the major roads, the Choejinbosanseong, Goisanseong and Cheolbaesanseong fortresses served as strongholds along the 60-kilometer-long primary defense line, with 80-kilometer-long secondary and tertiary defense lines set up behind it. The final 120-kilometer-long defense line of the capital was established along with the Onyeosanseong Fortress, while a stumbling block was set up close to the capital as a defense system, rather than building a fortified wall. To summarize, a primary defense system was established centered on a series of fortresses, with each stronghold maintaining a closely-knit defense system in connection with other nearby strongholds to repel invaders.

Culture and Ecology-Oriented City Marketing: A Case Study of Gangneung City (문화.생태를 이용한 도시마케팅 사례 연구)

  • Heo, Chung-Uk
    • Korean Business Review
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    • v.22 no.2
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    • pp.157-179
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    • 2009
  • This papers aims to focus on the city marketing as the green growth policy strategies using a case study of Gangneung City, Republic of Korea. In the case study it was verified the fields of urban growth including ecology, culture, alternative and recycled energy, green transportation system. The implications of the study were as follows: First, the city government had regenerated the coastal pine forest through removing unlicensed buildings which were squatted down in decades. Secondly, the city government has recognized the value of culture that possessed various types of cultural asserts. Thirdly, it is possible to use and produce the ocean energy with the tidal power plant, wind power plant and green deep water because Gangneung City has the ocean-oriented image and is located the coastal region. Lastly, the city government has been utilizing the LED traffic light using solar heat and is going to apply the green car like an electric car. This paper indicates the importance of the alternatives of the green growth-oriented policy through city marketing using the concept of culture and ecology. The city government will strive after an advanced triple bottom line with the ecological sustainability, cultural diversity and economic effectiveness in the near future.

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- The Review of the Collar Consideration of G go-ri to Improve Drafting Method - (제도법 개선을 위한 저고리 깃 구성의 재고찰)

  • 정옥임
    • Journal of the Korean Home Economics Association
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    • v.34 no.4
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    • pp.249-263
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    • 1996
  • According to the design method for constructing the G gori(the traditional Korean jacket)collar, there are differences in form after its completion. In the construction design of the midsection of the gusset as in that of the basic G gori, not only was the positioning of the two sides of the collar not smooth, but also, when the collar strip was attached, there would be an imbalance on one side or the other so that it was difficult to achieve symetry. Therefore in this project, by applying the pattern design of the gusset midsection to that of the collar midsection, not only did attaching the collar and the collar strip create a visual effect by equalizing the lengths of the tow sides, but the construction was also easy. This method of construction introduces the three-dimensional aspect of the human form in its conic, spherical and cylindrical aspects, so that, through schematizing the scientific character of Korea's clothing, its appropriateness is verified. As a matter of fact, since th-ere in no standardization of pattern whether for educational use or for mass-produced clothing, so that even the patterns used in computer-assisted design are executed according to the designer's personal skill, the reality is that after completion of construction the quality has not been uniform. For this schematization, inverse calculation of measurements pertaining to the calculation formula and of teaching materials has been referenced. In particular, the partial requlation of the calculation formula pertaining to the basic pattern construction, the method of making the collar midsection, and the construction method of the extreme and mean ratio adjustment can be adjusted for all measurements, thereby providing the establishment of a design criterion and the possibility of the standardization of construction methods. The production method for the pattern design is as follows: 1) The conic angle for the G gori's girth, length and neck width is fixed at 70 degrees. 2) The radius of the cone is B/2. 3) The calculation formula is B/4 + 1.5cm 4) The armhole formula is B/4, the same as in the basic method. 5) The width formula is B/10. 6) The ratio of the collar junction(width of collar + width of collar strip)to the gusset length is 5:8. 7) The length of the side seam is a length intersecting the armhole line and the conic radius (B/2), that is an arc that exceeds the length of the G gori's midsection; the component ratio of this length to the collar junction is accordingly 13:5. 8) The curve frame length of the back midsection is an arc exceeding B/4(the armhole line). 9) The ratio of the sleeve opening calculation formula to the armhole length is 8:5, forming an arc with the midsection length.

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Korean Medication Algorithm for Bipolar Disorder 2018 : The Elderly (한국형 양극성 장애 약물치료 알고리듬 2018 : 노인)

  • Jung, Young-Eun;Kim, Moon-Doo;Bahk, Won-Myong;Yoon, Bo-Hyun;Jon, Duk-In;Seo, Jeong Seok;Kim, Won;Lee, Jung Goo;Woo, Young Sup;Jeong, Jong-Hyun;Sohn, InKi;Shim, Se-Hoon;Song, Hoo-Rim;Min, Kyung Joon
    • Mood & Emotion
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    • v.16 no.3
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    • pp.123-128
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    • 2018
  • Objectives : The fourth revision of Korean Medication Algorithm Project for Bipolar Disorder (KMAP-BP) was performed to provide more proper guidelines for clinicians. In this study, we evaluated treatment strategies of elderly patients with bipolar disorders of KMAP-BP 2018. Methods : Sixty-one psychiatrists of the review committee with vast clinical experiences in treating bipolar disorders, completed the survey. An expert consensus was obtained, on pharmacological treatment strategies for elderly patients with bipolar disorder. The executive committee analyzed results, and discussed the results to produce the final algorithm. Results : In elderly patients with bipolar disorder, first-line treatment option for acute manic episode is monotherapy, with atypical antipsychotics or mood stabilizer, and a combination of mood stabilizer and atypical antipsychotics. First-line treatment option for acute depressive episode, was a combination of mood stabilizer and atypical antipsychotics, monotherapy with atypical antipsychotic or mood stabilizer, and atypical antipsychotics with lamotrigine. Conclusion : In KMAP-BP 2018, the recommendation for treatment option in elderly patients with bipolar disorder, was newly introduced. We expect this algorithm may provide valuable information, and facilitate treatment of elderly patients with bipolar disorder.

Historical Review for the Government Contractor Defense (Government Contractor Defense(정부계약자항변)에 대한 연혁적 고찰)

  • Shin, Sung-hwan
    • Journal of Advanced Navigation Technology
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    • v.21 no.3
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    • pp.230-242
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    • 2017
  • A significant rise in product-liability cost is expected due to the newly passed product liability amendment Bill approved during the assembly plenary session on March 30, 2017. Korean government legal service(KGLS) filed a damage suit against Korea aerospace industries, Ltd.(KAI) and Hanwha Techwin Co., Ltd., the manufactures of the KUH-1 Surion helicopter crashed. KGLS alleged claims under the product liability Act, the warrant liability Act and the non-performance of contract act. The accountability limits of military aircraft manufacturers was a highly divisive issue among related scholars and legal practitioners. The bottom line was that military aircraft manufacturers had no product-liability insurance available. The United States courts have, therefore, developed the government contractor defense(GCD) and it was recognized by the U.S. Supreme Court in Boyle v. United Technologies corporation(1988). product liability insurances for military aircraft manufacturers are excessively expensive and it cannot be added onto the military procurement cost accounting. However, having an aircraft accident without one can be ruinously expensive. Therefore, the manufacturers should promptly set up appropriate risk management measures. This thesis will first review the advance GCD theory, and then find a way to either reform government contract related regulations.

Reviews of Literature on Dental Plaque Control and Oral Hygiene Education in Korea (치면세균막관리와 구강보건교육에 관한 국내문헌고찰)

  • Choi, Moon-Sil;Kim, Dong-Kie
    • Journal of dental hygiene science
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    • v.17 no.2
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    • pp.87-98
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    • 2017
  • The purpose of this study was to understand the effectiveness of oral health education (OHE) or oral hygiene instruction (OHI) involving professional plaque control/removal, as compared to conventional plaque control/removal. By means of a systematic review of the literature, in the review of literature by using systematic method, Korean articles of plaque control including OHE or OHI, were studied in order to analyze and conclude the literature to enhance oral health. We found that self and professional plaque control/removal, in addition to tooth brushing instructions, decreased incidence and prevalence of loss of teeth. Taken together, professional mechanical plaque removals were most effective 4~5 visits every 1~2 weeks. Use of disclosing agent was more effective than oral education or model education. In line with oral hygiene education, professional brushing, oral prophylaxis, scaling and root planing, it was advisable to repeat the training according to the characteristics of the patient. Routine OHE or OHI would be help to increase to oral health. For a quality of life related oral health, reliability and validity of data are needed to develop and its data should be applied to dental health insurance policy.

Korea's Health Expenditures as a Share of Gross Domestic Product Over-Passing the OECD Average (한국 "국민의료비의 국내총생산 비중" OECD 평균을 넘어서다)

  • Hyoung-Sun Jeong;Jeongwoo Shin;Seunghee Kim;Myunghwa Kim;Heenyun Kim;Mikyung Cheon;Jihye Park;Sang-Hyun Kim;Sei-Jong Baek
    • Health Policy and Management
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    • v.33 no.3
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    • pp.243-252
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    • 2023
  • This paper aims to introduce Korea's total current health expenditure (CHE) and National Health Accounts of the year 2021 and their 2022 preliminary figures constructed on the basis of the System of Health Accounts 2011. As CHE includes expenditures for prevention, tracking, and treatment of coronavirus disease 2019 (COVID-19) and compensation for losses to medical institutions from 2020, the details are also introduced. Korea's total CHE in 2021 is 193.3 trillion won, which is 9.3% of gross domestic product (GDP). The preliminary figure in 2022, 209.0 trillion won, exceeded the 200 trillion won line for the first time, and its "ratio to GDP" of 9.7% is expected to exceed the average of Organisation for Economic Co-Operation and Development member countries for the first time. Korea's health expenditures, which were well controlled until the end of the 20th century, have increased at an alarming rate since the beginning of the 21st century, threatening the sustainability of national health insurance. The increase in health expenditure after 2020 is partly due to a temporary increase in response to COVID-19. However, when considering the structure of Korea's health insurance price hike, where the ratchet effect of increased medical expenses works particularly strongly, it is unlikely that the accelerating growth trend that has lasted for more than 20 years will stop easily. More aggressive policies to control medical expenses are required in the national health insurance which not only constitutes the main financing sources of the Korean health system but also has the most powerful policy means in effect for changes in the health care provision.

Research on the External form of Korean images used in Exhibition clothing (전시의상(展示衣裳)에 활용(活用)된 한국적(韓國的) 이미지의 외적형식(外的形式)에 대한 실태조사(實態調査))

  • Shin, Myung-Jin;Nam, Yoon-Sook
    • Journal of Fashion Business
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    • v.10 no.1
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    • pp.79-93
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    • 2006
  • The purpose of this study is to analyze designs of exhibition clothing in terms of the use of Korean image, to review objectively contents about the use of traditional image, understand external elements of works, and give directions and basic data for future works. This study selected the total 250 works as the subject of this study among the collected data. This study classified and examined the use of Korean image found in exhibition clothing according to period, item, line and form, material, technique of expression and accessary between 1996 and 2004. The results of analysis are as follows (1) The most artworks were comprised in adaptation were Choson costume. (2) Most of them were clothing works for female. The item of chima were the most preferred in use. (3) The straight lines are used more frequently than curved lines. Forms of skirts were applied to those of silhouettes, H and A form were common. (4) In terms of materials, traditional materials such as silk, linen and cotton were commonly used. (5) Geometric patterns and plant pattern were found more often than others. (6) In terms of techniques of expression, patchwork was most frequent, quilting, embroidery and pleating were ranked second, third and fourth. (7) In accessaries and other item, gorom were most common and norigae were ranked second. (8) As Korean image has been expressed by fine parts of traditional costumes, the traditional living item, and local symbols, the range of works are becoming wider.

The Fusion of Interior/Architecture/Landscape Architecture/Urbanism - Focused on the Conception of Urban Interior - (내부, 건축, 조경 건축, 도시 계획의 통합 - 도시 내부의 개념을 중심으로 -)

  • Kim, Myungshig
    • Korean Institute of Interior Design Journal
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    • v.23 no.5
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    • pp.67-75
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    • 2014
  • Architecture is not only coming out of the making of a building room but also contributing to the making of an urban room. "The inside is not a contradiction of the outside...architecturally opened". (De Carli, 1967) The urban room is felt as a sense of rapport between building and city because architecture makes the building room closed simultaneously open toward the city. Architecture exists between both rooms. There is the possibility of integrating, by the conception of interior, architecture and urbanism and thus, the possibility of giving a theoretical ground to Interior Architecture/Design; "all architecture is interior architecture". (Ottolini, 1996) It is in line with the idea of the "Fusing: Landscape/Urbanism/Architecture". (Holl, 2009) The paper deals with, through literature review, a possibility of the fusing: Interior/Architecture/Landscape/Urbanism. The first site explores the meaning of the urban place as a thing, which gives a possibility of combining the building interior and the urban interior. The second site illustrates the idea of the urban interior for dwelling. The urban interior is definitely a place of dwelling to keep human inhabitancy, which takes place in a united interior of the building interior and the urban interior. The third site clarifies the idea of the urban interior. While the building interior gives human being with the private stage, the urban interior provides him with the public stage of city life. The two different interiors constitute an interior world for his trajectory of dwelling. The last site traces the conceptual development of the urban interior. The trace comes to a conclusion that architecture, landscape, and urbanism can be unified by the conception of interior and the urban interior is an object of "Interior Architecture/Design". This paper is theorized as a twofold singular of the building interior and the urban interior. Ultimately, it is relevant to the theoretical principle of fusing interior/architecture/landscape/urbanism, and aims at offering a departing point to consider the urban interior as an object of "Interior Architecture/Design" and for the future studies of the urban interior.