• 대한가정학회지
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• 제32권5호
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• pp.165-182
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• 1994

Korea's clothing industry which has been country's leading export industry and basic strategical industry is now faced with many difficulties both domestically and internationally. Domestically it is faced with continuing shortage of manpower in both production line and management high labour cost causing increase in price putting more weight on behavior of consumers resulting in change of industrial environment and continuing structural problems of industry itself. Internationally it is faced with strengthening of import regulations and protectionism of developed countries and rapid emergence of underdeveloped countries as leading exporting nations. In reality export plays the most essential role in our economy and is especially sensitive to the external environmental factors. Already economic bloc phonomenon can be seen everywhere and is continuing to accelerate in place such as E. U in Europ, North & South America as NAFTA, and South East Asian contries which recent tendency of economic unity effort is present. These countries of such economic blocs are imposing heavy custom duties reinforcing provision of country origin and acting out strict inspection regulations in order to protect the interest of their own industry. Therefore it is vital to manufacture excellent quality goods For these reasons study in this area has brought attention in Korea as well as worldwide in the recent years. Apparel industry which requires professional technology and ability is the most competitive international business. In order to challenge the international market the high level of intelligence is most required to produce high quality goods. The purpose of this study is to analyze the relationship between functions and roles of marketing and to approach problems in more efficient manner. Apparel industry is composed of various programs such as design pattern making merchandising and textile science. To succeed in the business is to give the highest satisfaction to the targeted market. Hence this study will example the factors that determine the Cost Quality and Performance of apparel products. The study will involve following steps; firstly establish relationship between the quality concept and productivity of apparel products Secondly inquire in to marketing strategy laying stress on apparel production related factors focusing on merchandising marketing production and operations Thirdly prospect 21st century apparel industry focusing on garment production and trade and also other countries structural improvement Fourthly establish the new dimension of competitive factors by grasping the actual circumstance of Korea's apparel industry in the international market. The research method will include; First reality approach method by analysing the present state of industry Second literal analysis such as marketing comparisons between leading apparel exporting countries.

• 한국가스학회지
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• 제27권4호
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• pp.102-109
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• 2023

수소사회 실현에 있어 수요자가 수소를 가장 쉽게 만날 수 있는 시설인 수소충전소의 안전 확보가 중요하다. 수소충전소는 고압의 수소를 저장하는 압축가스설비 등으로 구성되어 있으며, 시설 내 수소 누출로 인한 화재폭발 또는 주변 화재의 영향으로 고압의 압축가스설비가 파열될 위험이 있다. 이에, 한국가스안전공사는 설치단계부터 위험요인을 찾아내 설계에 반영하고 법정 검사를 통한 안전 확보에 만전을 다하고 있다. 본 연구에서는 수소충전소에 설치하는 방호벽의 안전성 효과를 확인하기 위해 방호벽을 이용한 TNT 폭발 실증시험을 실시하고, CFD 프로그램인 FLACS-CFD를 이용하여 실증시험 결과와 비교·검증하였다. 실증시험 및 CFD 해석 결과 방호벽 후단에서 폭발 과압의 감소 효과가 위치에 따라 50 %에서 최대 90 %까지 감소하는 것이 확인되나, 일정거리를 벗어나면 그 효과가 떨어지는 것을 확인하였다. 방호벽의 안전성 검증을 위한 실증시험 및 전산해석 결과는 향후 방호벽 기준 최적화를 위한 제안에 활용하고자 한다.

• 한국초등과학교육학회지:초등과학교육
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• 제29권4호
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• pp.552-566
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• 2010

This paper is an in-depth case study to analyze integrated elementary science lesson planning and practical teaching by two teachers at an urban elementary schools. One is an experienced teacher and the other is a beginning teacher. For this study, researchers asked teachers to design 5 stages of lesson planning after sharing basic theories about the integrated science education. The first of the 5 lesson planning stages is curriculum analysis and choice of integrated science topic. The second stage is constructing the frame of integrated science lesson contents, and the third is drawing a diagram of the integrated science lesson development. The fourth stage is making a table of lesson plans, and the last stage is writing integrated science lesson plans. Then, the teachers implemented the lessons they created. They taught students one unit of science which is composed of 8 lessons. Difficulties that teachers meet during designing plans and integrated science class were analyzed. 5 staged lesson planning, video transcriptions, teacher interview about lesson planning and teaching, researchers' checklists, reports of inspection classes, teachers' self evaluation, and students interviews were used for this study. One of the significant results of this study is that both experienced and beginning teachers had many difficulties in deciding on time to teach and contents of science and other subjects, as well as selection and organization of whole topics of integrated science teaching. The beginning teacher especially had greater issues with developing definite teaching-learning strategy to conduct thoughts and views for integrated science at the whole unit and each lesson. However, the experienced teacher was using various teaching-learning strategies by utilizing integrated science teaching professionalism to develop students' integrated thinking ability during the instruction of other subjects. The outcomes of this study are that both teachers could deeply understand the need and value of integrated science education at the elementary school through planning and teaching 8 lessons, and that they could have self-confidence with development of teaching professionalism for integrated science teaching. It may be possible that this study could help the development of pre- and in-service program for improvement of integrated science teaching professionalism for elementary school teacher.

• 한국정보통신학회:학술대회논문집
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• 한국해양정보통신학회 2011년도 추계학술대회
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• pp.475-478
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• 2011

차량 운전자는 안전을 위해 항상 자신의 차량의 상태를 점검하고 파악하는 것이 필수이다. 하지만 운전자가 차량의 상태를 알고자 한다면 전문 업체에게 의뢰하기 때문에 운전자는 시간과 금전적인 비용이 지불되어야 한다. 오늘날 빠르게 변화하는 IT기술의 발달로 인해 스마트폰의 다양한 기능을 이용하여 차량의 상태 점검을 할 수 있게 되었다. 하지만, 기존 스마트폰 자동차 진단 시스템은 자동차의 전문적인 지식을 학습해야 차량 상태를 알 수 있기 때문에 사용자들에게 진단기의 필요성이 부각되지 않는다. 이러한 점을 반영하여 스마트폰을 이용해 사용자들이 손쉽게 자신의 차량 상태를 한 번에 파악할 수 있는 시스템이 요구된다. 본 논문에서는 OBD-II 프로토콜 변환 WiFi 커넥터를 통해 받아오는 OBD-II 정보를 차량 운전자에게 필요한 차량 소모품 교체 주기의 점검, 차량 문제점 진단 정보를 사용자에게 실시간으로 보여주며 손쉽게 사용할 수 있는 자동차 소모품 구현을 IOS 기반 스마트폰에서 구현 하였다.

• 한국생활과학회지
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• 제17권6호
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• pp.1225-1236
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• 2008

The purpose of this study is to determine the effect of aromatherapy, showing how the composition handling of aromatherapy and abdominal massage treatment reaches body ingredient transformation. The subjects for this research were total 18 middle-aged females in Seoul; aroma massage group of 7 females, aroma inhalation and water bathe group of 5 females, abdominal massage group of 6 females by jojoba oil without any medical effect. This clinic trial was held from July 1, 2008 to Aug.14, 2008. I held this clinic trial under the same condition after and before this clinic. A standard tape and OLYMPIA 3.5 of S hospital were used at the body measuring for subjects after and before clinic trials. I got Average and standard deviation by data analysis by SPSS Win. Ver.14.0. I did paired t-test for the comparison of before and after, and repeated measure ANOVA for between two groups or among three groups'. The verification was held Duncan Test. The results of this study were as follows: 1. Body mass quotient (F=2.86, p= .063) and Body region (F=1.34, p= .279) among three groups showed no meaningful difference, but weight meaningful difference and aroma massage group showed the greatest difference of body measure change quantity. 2. In change quantity of abdomen girth, Waist circumference and WHR, abdomen girth (F=4.56, p= .012) and Waist circumference (F=4.37, p= .031) showed a meaningful statistical difference. The result of subsequent inspection showed that there was a meaningful difference among three groups and aroma massage group was best. 3. In Cell quantity, Body region quantity and Muscle volume, Body region quantity (F=2.76, p= .182) and Muscle volume (F=3.12, p= .054) showed no difference, but Cell quantity (F=3.79, p= .040) showed a meaningful difference. In the comparison of three groups there was no difference, but aromatherapy group showed more change quantity than any other group. According to the result of this study, the composition handling of aromatherapy and body massage was effective in the decrease of Abdominal fatness and Waist circumference, Weight and the increase of Cell quantity. so I suggest that woman use this therapy in the program of obesity management for her health improvement.

• 한국방사선학회논문지
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• 제11권4호
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• pp.183-188
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• 2017

최근, 감마선 조사기의 자동 원격 조사 제어기가 오동작하여 방사선작업종사자가 방사선 피폭 사고가 지속적으로 보고되고 있다. 이에 NDT 분야에서는 방사선에 대한 잠재적 사고를 미연에 방지하기 위한 방사선원 모니터링 시스템 구축에 많은 시간과 재원을 투자하고 있다. 이에 본 연구에서는 다양한 비파괴검사장비에 범용적으로 적용할 수 있는 방사선원 위치 모니터링 시스템의 개발을 위한 선행연구로써 몬테카를로 시뮬레이션을 통해 산화납 기반 방사선 검출기에 대한 감마선 응답 특성을 모의 추정하였다. 연구 결과, 방사선 검출기의 최적화 두께는 방사선원에서 방사되는 감마선 에너지에 따라 상이하며 에너지가 증가함에 따라 최적화 두께가 점차 증가하는 것으로 나타났다. 결론적으로 PbO 기반 방사선 검출기의 최적화 두께는 Ir-192에 대하여 $200{\mu}m$, Se-75 $150{\mu}m$, Co-60 $300{\mu}m$로 분석되었다. 이러한 연구 결과를 바탕으로 범용적으로 적용하기 위하여 2차 전자 평형을 고려한 PbO 기반 방사선 검출기의 적절한 두께는 $300{\mu}m$로 평가되었다. 이러한 결과는 차후 다양한 NDT 장비에 범용적으로 적용하기 위한 방사선원 위치 모니터링 시스템을 개발 시 방사선 검출기에서 요구되는 적절한 두께를 결정하는데 있어 기초자료로 활용될 수 있을 것으로 사료된다.

• 문화기술의 융합
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• 제5권4호
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• pp.387-394
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• 2019

본 연구에서는 도시철도 침목플로팅궤도(STEDEF) 궤도구성품의 손상영향을 분석하기 위하여 20년 이상 공용중인 현장에서 시료를 채취하여 궤도재료에 대한 육안검사와 실내시험 및 유한요소해석을 통해 궤도구성품의 손상취약부를 분석하였다. 육안검사결과 레일패드와 체결구는 특이사항이 없었으나 침목방진상자는 모서리부분의 마모 및 찢어지는 현상이 발생하였다. 침목방진패드는 두께감소 및 피로경화층이 뚜렷하게 조사되었다. 레일패드와 침목방진패드에 대한 스프링강성 시험결과, 레일패드의 노후는 뚜렷하지 않았으나 침목방진패드는 설계기준치를 크게 상회하는 것으로 나타나 침목방진패드는 통과톤수에 직접적인 영향을 받는 것으로 분석되었다. 현장시료의 열화상태와 수치해석 결과와의 비교결과, 수치해석모델의 응력 및 변위 집중위치와 현장시료의 손상위치가 일치하는 것으로 나타나 공용중인 침목플로팅궤도 궤도구성품의 손상취약부를 실험 및 해석적으로 입증하였다.

• 문화기술의 융합
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• 제8권6호
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• pp.667-674
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• 2022

침목플로팅궤도(STEDEF)의 콘크리트침목은 2개의 콘크리트블럭을 타이바로 연결하여 구성된 형태이며 침목방진패드 및 침목상자와 도상 콘크리트층에 매립되어 레일로 전달되는 열차하중을 지지하고 하중을 도상으로 분산시키는 역할을 수행하는 주요 궤도구성품이다. 침목방진패드는 열차의 반복운행에 따른 누적하중 증가, 장기간 사용에 따른 열화로 인해 재료적 성능이 저하되어 다른 궤도구성품의 손상을 유발할 수 있다. 실제 형상과 동일한 3D 모델링으로 운행하중 조건에서 발생되는 침목플로팅궤도구조의 거동을 파악하고, 수치해석을 통해 침목방진패드의 스프링강성 변화가 콘크리트침목의 손상에 미치는 영향을 분석하였다. 분석결과, 침목방진패드의 좌·우측 스프링강성 증가는 콘크리트침목의 최대 응력 및 인장응력, 변위는 증가하고 레일 직하부 침목의 최대 압축응력은 감소하며, 타이바접촉부 콘크리트에서 응력집중이 되는 것으로 분석되었다. 이는 현장조사결과의 콘크리트침목 손상유형과도 일치하는 것으로서 침목방진패드의 장기간 사용에 따른 스프링강성 변화는 콘크리트침목의 응력 증가를 초래할 수 있으며, 좌우 침목의 침하량의 차이가 증가되어 콘크리트침목의 손상에 영향을 미칠 수 있음을 해석적으로 입증하였다.

• 국제학술발표논문집
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• The 3th International Conference on Construction Engineering and Project Management
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• pp.30-31
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• 2009

Early detection of schedule delay in field construction activities is vital to project management. It provides the opportunity to initiate remedial actions and increases the chance of controlling such overruns or minimizing their impacts. This entails project managers to design, implement, and maintain a systematic approach for progress monitoring to promptly identify, process and communicate discrepancies between actual and as-planned performances as early as possible. Despite importance, systematic implementation of progress monitoring is challenging: (1) Current progress monitoring is time-consuming as it needs extensive as-planned and as-built data collection; (2) The excessive amount of work required to be performed may cause human-errors and reduce the quality of manually collected data and since only an approximate visual inspection is usually performed, makes the collected data subjective; (3) Existing methods of progress monitoring are also non-systematic and may also create a time-lag between the time progress is reported and the time progress is actually accomplished; (4) Progress reports are visually complex, and do not reflect spatial aspects of construction; and (5) Current reporting methods increase the time required to describe and explain progress in coordination meetings and in turn could delay the decision making process. In summary, with current methods, it may be not be easy to understand the progress situation clearly and quickly. To overcome such inefficiencies, this research focuses on exploring application of unsorted daily progress photograph logs - available on any construction site - as well as IFC-based 4D models for progress monitoring. Our approach is based on computing, from the images themselves, the photographer's locations and orientations, along with a sparse 3D geometric representation of the as-built scene using daily progress photographs and superimposition of the reconstructed scene over the as-planned 4D model. Within such an environment, progress photographs are registered in the virtual as-planned environment, allowing a large unstructured collection of daily construction images to be interactively explored. In addition, sparse reconstructed scenes superimposed over 4D models allow site images to be geo-registered with the as-planned components and consequently, a location-based image processing technique to be implemented and progress data to be extracted automatically. The result of progress comparison study between as-planned and as-built performances can subsequently be visualized in the D4AR - 4D Augmented Reality - environment using a traffic light metaphor. In such an environment, project participants would be able to: 1) use the 4D as-planned model as a baseline for progress monitoring, compare it to daily construction photographs and study workspace logistics; 2) interactively and remotely explore registered construction photographs in a 3D environment; 3) analyze registered images and quantify as-built progress; 4) measure discrepancies between as-planned and as-built performances; and 5) visually represent progress discrepancies through superimposition of 4D as-planned models over progress photographs, make control decisions and effectively communicate those with project participants. We present our preliminary results on two ongoing construction projects and discuss implementation, perceived benefits and future potential enhancement of this new technology in construction, in all fronts of automatic data collection, processing and communication.

• 한국항공운항학회지
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• 제12권3호
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• pp.41-63
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• 2004

The area covered by product liability in broadest sense is so vast that an attempt to analyse all its impact on the aviation world risk. Every effort has been made to confine our review of subject a closely as possible to its influence on aircraft manufacturers, airlines and passengers, in spite of strong connections with other spheres of commercial. Product Liability in aviation is the liability of aircraft's manufacturer, processor or non-manufacturing seller for injury to the person or property of a buyer or third party caused by a product which has been sold. Here-in a product is aircraft, third party is passengers who suffered damage by defective design, defective construction, inadequate instructions for handling in aircraft. Whenever a product turns out to be defective after it has been sold, there are under Anglo-American law three remedies available against the aircraft's manufacturer (1) liability for negligence (2) breach of warranty (3) strict liability in tort. There are Under continental law Three remedies available against the aircraft's manufacturer (1) liability for defective warranty (2) liability for non-fulfillment of obligation (3) liability in tort. It is worth pointing out here an action for breach of warranty or for defective warranty, for non-fulfillment of obligation is available only to direct purchaser on the basis of his contract with the aircraft's manufacturer, which of course weakness its range and effectiveness. An action for tort offers the advantage of being available also to third parties who have acquired the defective product at a later stage. In tort, obligations are constituted not only by contract, but also by stature and common law. In conclusion, There in no difference in principle of law. In conclusion I would like to make few suggestions regarding the product liability for aircraft's manufacturer. Firstly, current general product liability code does not specify whether government offices(e.g. FAA) inspector conducted the inspection and auditory certificate can qualify as conclusive legal evidence. These need to be clarified. Secondly, because Korea is gaining potential of becoming aircraft's manufacturer through co-manufacturing and subcontracting-manufacturing with the US and independent production, there needs legislation that can harmonize the protection of both aircraft's manufacturers and their injured parties. Since Korea is in primary stage of aviation industry, considerate policy cannot be overlooked for its protection and promotion. Thirdly, because aircraft manufacturers are risking restitution like air-carriers whose scope of restitution have widened to strict and unlimited liability, there needs importation of mandatory liability insurance and national warranty into the product liability for aircraft's manufacturers. Fourthly, there needs domestic legislation of air transportation law that clearly regulates overall legal relationship in air transportation such as carrier & aircraft manufacturer's liability, and aviation insurance.