• Title/Summary/Keyword: Draft system

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Measurement of Maneuverability in the Restricted Area by Numerical Model Ship (수치 모형선에 의한 제한수역에서의 조종성능 측정)

  • Park, Byung-Soo;Kim, Jong-Hwa;Kim, Cheog-Su
    • Journal of the Korean Society of Marine Environment & Safety
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    • v.15 no.4
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    • pp.363-367
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    • 2009
  • The ship maneuverability is changed by the effects of the bank cushion and the squat in the restricted water area. It is difficult to test the ship maneuverability by the real ship in the restricted water area because of ship's safety. In this study, a numerical model ship was used to simulate the ship's motion and to get information about the bank cushion and the squat in the restricted water area. The less apart from the quay the ship ran, the more ship's heading changed. The greatest change of ship's heading was $22.37^{\circ}$ when a ratio of the length between ship and quay to ship's breadh(=D/B) was 0.2. The squat of the ship was greater in shallower water and at faster speed. The greatest squat was 0.29m when a ratio of water depth to ship's draft(H/d) was 1.25 and ship's speed was 8 knots, the reduced speed was found to be the most important factor in the shallow water area for safety of the ship.

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A Study on the Developing Standard Classsification of the National Knowledge and Information Resources (국가지식정보 자원 분류 체계 표준화 연구)

  • Ko Young-Man;Seo Tae-Sul;Cho Sun-Yeong
    • Journal of the Korean Society for Library and Information Science
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    • v.40 no.3
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    • pp.151-173
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    • 2006
  • The purpose of this study is to make out a draft for the standard classification of the National Knowledge and Information Resources. As the result of the Study the standard classification system of the national knowledge and information resources, named "Knowledge Classification 'KC' is suggested. KC consists of 3 classification systems classification by subject, type of resources and type of media. The classification by subject has 12 main classes, and each main class has divisions. Main classes consist each of major discipline or group of related disciplines. The type of resources is classified by 10 types of content, likewise numbered 0-9, and the media of knowledge are classified by 8 types. likewise 0-7. In the Practice the notation always consists of 2 characters and 2 digits. The first character designate main class and the second character designate division. The first number designate the type of resources and the second number designate the type of media.

The Methods of the Activation of Korean Private sector-driven Standardization for coping with the Dynamic International Standards (변화하는 국제표준에 효과적으로 대응하기 위한 우리나라의 민간표준화 활성화 방안 연구)

  • 이강인;정재익;최순양
    • Journal of Korean Society for Quality Management
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    • v.31 no.3
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    • pp.62-84
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    • 2003
  • The typical reason of the private sector's increasing share in standardization is that the procedures of official standardization organizations are out of step with the rate of technical development. At today's so fast pace that the success of a technology is decided in the market even before it is standardized, several industry leaders jointly make their draft standard at the early stage of development, which becomes 'De fecto Standard.' To respond effectively to current trends of standardization where the market's decision is thought much of than official standardization procedures, it is necessary to shift from our current public sector-driven to private sector-driven standardization. Therefore, to vitalize the private sector-driven standardization in Korea, there is a need to: Run a standard foundation to secure stable resources for standardization Make information exchange between the govertment and private sector active and policy-making on standards consistent by designating a private organization to cover the roles, policies on standards, and support of the national standardization organization Establish a system to make private sector-driven standards approved as international standards Offer a training program to forster standard experts Publicize the importance of standards Promote standardization forums driven by private businesses, like the Integrated Forum. Maximize the benefits of linking standards and patents Now, Korea is on the threshold of developing into a world-class standard leader, and the private sector-driven standardization should be a stepping-stone for crossing over the threshold. This study is designed to suggest a method of promoting private sector-driven standardization to effectively cope with fast-changing international standards, based on the cases in developed countries.

Environmental Impact and Safe Vegetable Production of Korean Organic Farming only Appling Organic Fertilizer to Maintain/Increase Soil Fertility

  • Sohn, Sang-Mok;Kim, Young-Ho
    • Korean Journal of Organic Agriculture
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    • v.8 no.1
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    • pp.111-129
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    • 1999
  • In order to get some basic data to check the environmental sound function against soil and water pollution and the safe vegetable production by korean organic farming where an internationally recognized basic concepts of soil fertility management for organic farming is not practiced and only applying the organic fertilizer to maintain the soil fertility, the chemical characteristics of soils and $NO_{3}^{-}$ content of chinese cabbage and lettuce cultivated by the conventional farming, greenhouse cultivation and organic farming were investigated. The highest value of $NO_{3}^{-}$-N in 0~30cm subsoil among the three different farming systems was found in the subsoil of organic farming and it was 3.6 and 6.6 times higher than those of conventional farming in chinese cabbage and lettuce respectively. $P_2O_5$ accumulation in the rhizosphere by organic farming also showed the highest value. The accumulation of $NO_{3}^{-}$-N and $P_2O_5$ in organic farming soil were similar or even more higher to those of greenhouse cultivation. The $NO_{3}^{-}$ accumulation in the vegetable by organic farming reached 3224ppm for chinese cabbage and 2543ppm for lettuce, and it were 4.7 and 6.4 times higher than those by conventional farming. It was concluded that there is urgently necessary to introduce the main concepts of soil fertility management of the Basic Standard of IFOAM, EU regulation and FAO/WHO Codex Alimentarius on organic agriculture(draft) into korean organic agriculture for the operation of environmental sound system and the production of sate vegetable in terms of $NO_{3}^{-}$ content.

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Crystallization Kinetics of NTO in a Batch Cooling Crystallizer (회분식 냉각 결정화기에서 NTO의 결정화 메카니즘)

  • Kim, K.J.;Kim, M.J.;Yeom, C.K.;Lee, J.M.;Choi, H.S.;Kim, H.S.;Park, B.S.
    • Applied Chemistry for Engineering
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    • v.9 no.7
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    • pp.974-978
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    • 1998
  • The kinetics of crystal growth and nucleation in dependence on the supersaturation of an aqueous solution of 3-nitro-1,2,4-triazol-5-one(NTO) were evaluated on the draft tube-baffle(DTB) crystallizer operated batchwise. The crystal growth rate is proportional to the supersaturation to the 2.9 power, and the nucleation rate to the 4.2 power. The uncleation behavior for NTO-water system in DTB crystallizer was grasped according to Mersmann's criteria. The nucleation in this crystallizer was found to act with heterogeneous nucleation and surface uncleation simultaneously. Simplified relation was derived for calculation of mean crystal size of product crystals from the batch cooling crystallizer. The obtained relation was verified by a set of experiments.

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Factors affecting in vitro embryo production: insights into dromedary camel

  • Moawad, Adel R.;Ghoneim, Ibrahim M.;Darwish, Gamal M.;Badr, Magdy R.;El-Badry, Diya A.;EL-Wishy, Abou Bakr A.
    • Journal of Animal Reproduction and Biotechnology
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    • v.35 no.2
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    • pp.119-141
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    • 2020
  • The Dromedary camel (Camelus dromedaries) is an important species because of its ability to produce good quality meat, milk, and fibers under harsh environmental conditions. Camels are also crucial for transportation, racing, and as draft animals in agriculture. Therefore, dromedary camels play a critical role in the economy for millions of people living in the arid part of the world. The inherent capability of camels to produce meat and milk is highly correlated with their reproductive performance. Compared with other domestic species, the reproductive efficiency in camelids is low. Although recent reproductive technologies such as in vitro fertilization (IVF) and somatic cell nuclear transfer (SCNT) have been successfully applied to camelids and the birth of live offspring following these technologies has been reported; in vitro embryo production (IVP) has lagged in this species. The development of the IVP system for dromedary camels may be a useful tool for the genetic improvement of this species. IVP in farm animals includes three main steps; in vitro maturation (IVM) of an oocyte, IVF of a matured oocyte, and in vitro culture (IVC) of fertilized oocyte up to the blastocyst stage. This review aims to summarize various factors that influence oocyte quality, IVM, and in vitro embryo development in dromedary camel.

Motion Retargetting Simplification for H-Anim Characters (H-Anim 캐릭터의 모션 리타겟팅 단순화)

  • Jung, Chul-Hee;Lee, Myeong-Won
    • Journal of KIISE:Computing Practices and Letters
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    • v.15 no.10
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    • pp.791-795
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    • 2009
  • There is a need for a system independent human data format that doesn't depend on a specific graphics tool or program to use interoperable human data in a network environment. To achieve this, the Web3D Consortium and ISO/IEC JTC1 WG6 developed the international draft standard ISO/IEC 19774 Humanoid Animation(H-Anim). H-Anim defines the data structure for an articulated human figure, but it does not yet define the data for human motion generation. This paper discusses a method of obtaining compatibility and independence of motion data between application programs, and describes a method of simplifying motion retargetting necessary for motion definition of H-Anim characters. In addition, it describes a method of generating H-Anim character animation using arbitrary 3D character models and arbitrary motion capture data without any inter-relations, and its implementation results.

Development of BSC Model of Center for Teaching and Learning (교수학습지원센터의 BSC 모형 개발)

  • Kim, Yongjun;Kim, Soyun;Cho, Changhee
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.42 no.4
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    • pp.135-144
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    • 2019
  • In this study, BSC model of center for teaching and learning was developed using balanced scorecard suitable for non-profit organization. Firstly, relevant literature surveys and evaluation indicators of various CTL and institution with similar characteristics were examined. Next, a draft BSC model was designed through interviews of specialists. Lastly, the BSC model was proposed by verifying the content validity of the evaluation model by conducting two Delphi surveys. The BSC model of CTL has 4 perspectives: resource, customer, internal process, learning and growth, 9 critical success factors: 2 factors in resource, customer and learning and growth perspectives, 3 factors in internal process perspective, and 23 key performance Indicators: 4 indicators in resource and learning and growth, 7 indicators in customer perspective, 8 indicators in internal process perspective. The implications of this study through the results were as follows: firstly, the proposed BSC model showed an evaluation model suitable for a non-profit organization. Second, the BSC model was linked to the organization's mission and vision. Third, it could contribute to the long-term development of CTL. Lastly, if it could be applied to management, and evaluated, it is expected to play a role of providing basic data for the budget support and spread of the university.

Mass Production and Identification of Anthocyanin in Cell Cultures of Euphorbia splendens Bojer (꽃기린 (Euphorbia splendens Bojer) 배양세포로부터 화청소의 대량생산 및 동정)

  • 선정훈;정재동
    • Korean Journal of Plant Tissue Culture
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    • v.21 no.2
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    • pp.77-84
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    • 1994
  • To assess the feasibility of anthocyanin production in cell cultures of Euphorbia splendens Bojer the role of sucrose in pigment production was investigated and pilot scale cultures were attempted to establish mass production system. And also, several instrumental analyses were conducted to identify the pigment extracted from cultured rolls. Anthocyanin production was promoted prominently with concenetrations of sucrose ranging from 3% to 9% while cell growth was maximized at 3% of sucrose . This suggested that high osmolarity of sucrose enhance pigment production. When cells were cultured in two types of bioreactor better cell growth was achieved with draft-type air lift bioreactor than impeller type bioreactor and the pigment productivity was reached to 2.2 mg/L/day. The major pigment extracted from cultured cells was characterized as cyanidin-3-glucoside.

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Design of Pressure Injury Management Mobile Application Structure and User Interface (욕창관리 모바일 어플리케이션 구조 설계 및 사용자 인터페이스 구현)

  • Lee, Jisan;Kim, Jungjae;Lee, Yun Jin;Park, Seungmi
    • Journal of muscle and joint health
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    • v.26 no.3
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    • pp.223-231
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    • 2019
  • Purpose: This study aimed to design user interfaces of a mobile application for managing pressure injury patients in a long-term care hospital based on the user's needs. Methods: To reflect users' needs in the mobile application, the user interfaces in this study were designed in five steps: brainstorming and mind mapping, persona and scenario, needs list and priority, a draft version of flow chart and user interfaces and expert review. These steps were conducted with a step nurse at a long-term care hospital, a professor who majored in nursing informatics, a professor who had lots of research experiences about pressure injury and a wound ostomy continence nurse. Results: Two personas, scenarios and needs' lists were derived. Listed Needs included the followings; Accurate staging of pressure injury; Appropriate management by staging; Acquisition of professional knowledge about pressure injury; Acquisition of easy pressure injury information through text, picture and video; and Sharing pressure injury information in unit. The structure, menus and features of the pressure injury mobile application were visualized with user flow based on two personas' scenarios and needs' lists. Conclusion: Our study suggests and visualizes the key features of the 'Pressure Injury Guide', a pressure injury management mobile application for nurses in a long-term care hospital, which can be utilized by nurses, application developers, and related researchers.