• International Journal of Fluid Machinery and Systems
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• 제10권2호
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• pp.99-118
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• 2017

ECHO progress was defined to depict the rotordynamic pump theory development. Experience (E) era for pumps lasted nearly one and a half hundred years before the Industrial Revolution due to the low rotation speed of motor and undeveloped manufacture ability. Classic (C) theory referring to quasi-static performance as well as the items those were not able to be steadily resolved under the level were briefly and sophisticated outlined. Since 1962, flow instabilities and the dynamic responses had come into main attention with the development of the modern technologies such as ballistic missile, rocket and space shuttle main engine, and were finally heuristically (H) elucidated by talented scholars and researchers. Recently, new applications for the pumps open (O) to the surrounding fluid and diversity of the medium such as multiphase flow need more studies and some examples were briefly introduced to display the potential problems lastly.

• 한국방재학회 논문집
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• 제8권1호
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• pp.145-151
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• 2008

농어촌지역의 하수종말처리시설 민간투자사업에 대한 계획인구 및 계획하수량 산정 방법을 검토하였다. 기존의 추정 방법에서는 인구 감소 추세임에도 불구하고, 인구가 정체될 것으로 가정하여 계획인구를 추정하고 있으며, 수도보급률이 매우 낮은 지역에서의 계획하수량을 정수장 급수보급량을 이용하여 산정하고 있다. 결과적으로 계획 인구 및 계획하수량의 과다 산정은 필요이상의 하수종말처리시설이 만들어지게 되는 결과를 가져오게 된다. 그러므로 본 연구에서는 계획 인구는 통계청의 장래인구 추계결과를 따르는 것으로 하고, 수도가 보급된 지역에서는 급수사용량을, 수도가 보급되지 않은 지역에서는 지하수 사용량을 이용하여 계획하수량을 산정하는 방안을 제시하였다.

• 항공우주시스템공학회지
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• 제15권1호
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• pp.7-18
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• 2021

반능동형 MR댐퍼 착륙장치는 MR유체가 환형 유로를 지날 때 유체감쇠력 및 자장 제어 감쇠력을 발생시키는 댐퍼이다. 환형 유로를 지나는 MR 유체의 경우 필연적으로 불완전 발달 유동이 발생하게 되어, 이는 유체 감쇠력을 포함하는 댐퍼 내력 계산에 오차를 발생시키는 원인이 된다. 이로 인해 댐퍼 구조적 파라미터 설계 및 제어 이득 선정이 부정확해지며, 착륙장치의 동특성 및 충격흡수성능 저하를 초래하게 된다. 본 논문에서는 MR댐퍼 환형 유로의 입구영역에서 발생하는 추가적인 감쇠력을 고려한 MR댐퍼 착륙장치의 수학적 모델을 유도하였다. 본 논문에서 유도한 수학적 모델링을 MR댐퍼 착륙장치의 설계 및 최적화 과정에 적용한다면 좀 더 정확한 내력 예측으로 우수한 성능의 MR댐퍼 착륙장치를 설계할 수 있을 것으로 판단된다.

• 한국조리학회지
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• 제1권
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• pp.91-102
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• 1995

The result of this study will be influenced on hotel food & beverage to large extent. And that is linked with want the government is pursuing. What this study focused are followings. First, this study is tried to survey the role of tourist hotel F & B as eating out industry. Second, this study analyzed the most important factors when selecting the tourist hotel F & B. Third, this study looked for the further alternatives on the issues of tourist hotel F & B. Such focuses as these can be expected various effects, and several of those are as followings. First, this study can expect the understanding on the flow of F & B in the world and the development of ingenious management strategies. Second, this study can promote the developing effort of undeveloped korean food, and have an largely effect on from the tourist hotel restaurant to deluxe restaurant, public restaurant, and home. Third, this study will provide the opportunity to confirm the role and direction of tourist hotel, which maximizing affirmative effect.

• 한국조리학회지
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• 제1권
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• pp.103-125
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• 1995

The result of this study well be influenced on hotel food & beverage to large extent. And that is linked with what the government is pursuing. What This study focused are followings. First, this study is tried to survey the role of tourist hotel F & B as eating out industry. Second, this study analyzed the most important factors when selecting the tourist hotel F & B. Third, this study looked for the further alternatives on the issues of tourist hotel F & B. Such focuses as these can be expected various, and several of those are as followings. First, this study can expect the understanding on the flow of F & B in the world and the development of ingenious management strategies. Second, this study can promote the developing effort of undeveloped korean food, and have an largely effect on from the tourist hotel restaurant to deluxe restaurant, public restaurant, and home. Thrid, this study will provide the opportunity to confirm the role and direction of tourist hotel, which maximizing affirmative effect.

• 대한토목학회논문집
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• 제31권2B호
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• pp.99-108
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• 2011

본 연구에서는 개발이전의 도시하천 유황을 복원시키기 위한 유수지 및 침투기반 저류지의 복합설계기법이 적용된다. 적용된 기법은 NRCS-CN 강우유출수 산정기법을 근간으로 하고 있으며, 이로부터 침투기반 저류지 및 유수지의 크기가 온천천 유역을 대상으로 결정된다. 이 때, 강우유출수 관리시설을 설계하기 위한 대상지역은 온천천 유역 중 해발 70 m 이하의 도시화 지역으로 제한하였다. 적용 결과 제안된 기법은 온천천 유역의 개발 이전의 유황을 재현하는데 유용하게 적용될 수 있을 것으로 기대된다.

• International Journal of Costume and Fashion
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• 제9권2호
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• pp.35-48
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• 2009

Therapeutic garments are an undeveloped area and yet they have the potential to generate considerable profit for the fashion industry. In traditional Chinese medicine, there are spots and pathways on the body through which energy flows and practitioners consider that disease results when this energy flow is hindered. Clothes which stimulate the spots can therefore potentially help to cure disease. In addition, clothes are worn every day and can therefore offer prolonged treatment certainly in comparison with other treatments. Obesity is a big problem nowadays and one which is caused by poor energy circulation (according to TCM). A garment which stimulates the spots can assist energy flow and therefore cause the wearer to lose weight. In the process, it can also alleviate side effects of obesity such as diabetes and high blood pressure. The was to stimulate spots include acupuncture, acupressure, moxibustion etc. There are lots of products to press spots which improve energy flow both in the Western and Chinese markets. The basic principle of circulation is in fact the same in both Western and Chinese medicine. However, most of these are products are footwear ones because they can easily provide the necessary stimulation to reduce tiredness and improve circulation. For garments, to press the spots effectively it is best to use tight clothes such as corsets and leggings. The important point is to tighten the body and to make energy flow and yet feel comfortable at the same time. Choice of fabric is therefore an important issue. Although the idea has been introduced, it will be necessary to develop a technique which will allow the necessary amount of pressure to be applied. It could be concluded that this area has a lot of possibility for the future but further research will need to be done before the idea becomes workable.

• 비파괴검사학회지
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• 제5권1호
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• pp.34-47
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• 1985

The developing country, KOREA where does not possess the natural resources for traditional energy such as oil and gas, so. The nuclear energy is the most single reliable source available for closing the energy gap. For these reason, It is inavoidable to construct the nuclear power plant and to develop technology related nuclear energy. The rate of operation in large nuclear power facilities depends upon the performance of work system through design and construction, and also the applied technology. Especially, it is the most important element that safety and reliability in operation of nuclear power plant. In view of this aspects, Nuclear power plant is performed severe examinations during preservice and inservice inspection. This study provide an automation of analysis for volumetric examination which is required to nuclear power plant components. It is composed as follows: I. Introduction II. Inservice Inspection of Nuclear Power Plant ${\ast}$ General Requirement. ${\ast}$ Principle and Methods of Ultrasonic Test. ${\ast}$ Study of Flaw Evaluation and Design of Classifying Formula for Flaws. III. Design of Automation for Flaw Evaluation. IV. An Example V. Conclusion In this theory, It is classifying the flaws, the formula of classifying flaws and the design of automation that is the main important point. As motioned the above, Owing to such as automatic design, more time could be allocated to practical test than that of evaluation of defects, Protecting against subjective bias tester by himself and miscalculation by dint of various process of computation. For the more, adopting this method would be used to more retaining for many test data and comparative evaluating during successive inspection intervals. Inspite of limitation for testing method and required application to test components, it provide useful application to flow evaluation for volumetric examination. Owing to the characteristics of nuclear power plant that is highly skill intensive industry and has huze system, the more notice should be concentrated as follows. Establishing rational operation plan, developing various technology, and making the newly designed system for undeveloped sector.

• 한국실내디자인학회논문집
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• 제19권1호
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• pp.112-120
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• 2010

Generally, Interior design understood as shapes, lines, spaces, tones, quality, and principal. And people research these with a study of formative approach. The six elements of above categories are basis of expansion for the various designs. In this study, the represented design language is extracted by the basic 6 stages and re-divided into classes. This study presented by the Kobayashi-scale image of the current trends in the assignment to examine the cultural, functional, sensory vocabulary, three elements were classified by the assignment about 2008~2009 international fair by trend and design direction for the image. If we look into the categorized format of the design, it reflects mixed culture with emotional approach and shows direction of design constantly. Especially, compared to the year 2008, the design of year 2009 has tendency as an emotional translator regarding the verbal expression. In other words, it becomes more concrete to express the design of emotions for human beings. In addition, design shows detail of its flow with outcomes of past leading trend which was re-created shape. On the other hand, undeveloped cultures such as folk, historical, and unique cultures attract design leaders as it is. This research would make good relationship between designers and customers regarding the newly started international trend of design. Hereby I research with the method to reclassify the image of vocabulary from the image scale extract. It remains as a task to resolve ambiguous, complex and neutral expression for better understanding and definite analysis method to the public.