• 제목/요약/키워드: Common Part Design

검색결과 275건 처리시간 0.034초

CSR을 적용한 MR급 TANKER의 상세 구조해석 결과 및 고찰 (Structural Analysis for MR. Sized Oil Tanker Applied Common Structure Rule)

  • 소하영;이규호;신성광;최영달;임효관
    • 대한조선학회 특별논문집
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    • 대한조선학회 2007년도 특별논문집
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    • pp.26-31
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    • 2007
  • After CSR is in effect, a matter of concern is how many to increase in terms of weight due to apply it to the ship and what difference it is comparing between existing rule and CSR rule. The concepts of CSR are to make the ship safer, more robust. and the design requirement clearer. Furthermore it pursues longer life of ship in fatigue strength. By reasons of those, most of requirements are stronger than before. Therefore many part of ship should be reinforced and the weight of ship can be increased. Under those circumstances, the builder should make an effort to define the CSR and to find the methods to manage well this situation. In this study, we performed 3D Cargo hold and Fine-mesh F.E analysis and deduced a conclusion and introduced new detail design.

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경사자장의 선형성 향상을 위한 핵자기공명 영상용 Z-방향 경사자기장 코일 설계 (Design of Z-directional gradient coil to improve gradient linearity for the nuclear magnetic resonace imaging(NMRI))

  • 고락길;이동훈;백승태;김송희;권영길;류강식
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 1998년도 하계학술대회 논문집 A
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    • pp.235-237
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    • 1998
  • Gradient coil offers the spatial informations of sample or patient in Nuclear Magnetic Resonance Imaging(NMRI) and its gradient field linearity over the field of view(FOV) has many influence on the MR imaging. Accurate and good quality MR imaging can be acquired by the high gradient field linearity over the FOV. So it is an important part to design of gradient coil with good linearity in the wide imaging range. Usually, Z-directional gradient field is generated by using the Helmholtz type coil which is consisted of one-pair loop with anti-current path. It gets less about 40% linearity of the diameter spherical volume(DSV). In this study, we calculated optimized geometrical parameters of two-pair loop system to cancel odd terms up to $B_7$ included effectively. we also analyzed and compared the gradient field distribution and linearity of the common Helmholtz coil with them of the two-pair loop system.

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물의 속성과 전시연출에 관한 연구 - 4대강 물문화관을 중심으로 - (A Study on Attribute of Water and Exhibition Composition - Focused on Four-major River Water Culture Pavilion in Korea -)

  • 송현지;김남효
    • 한국실내디자인학회논문집
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    • 제21권5호
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    • pp.355-362
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    • 2012
  • Water Culture Pavilion was constructed as a part of dam construction and Four-major rivers restoration projects, which have the purpose to prevent damage of natural disaster, localized heavy rain and drought, and has several functions; promotion, education and region culture community. Exhibition space in this culture pavilion should have the excellent connection of various media, contents, and exhibition space because of limited space. The purpose of this study is to analyze flows, continuation and connection of exhibit space with the perspectives of the attribute of water and to suggest various content things, technical, spatial types. This study targets Four-major rivers Water Culture Pavilion in Korea and suggests exhibition presentation methods as analyzing contents, media and constituent of exhibition space for each pavilion exhibition. The result of this study is as follows : First, the circulation is common expressed attribute of water in these four water culture pavilion. The reason is that there is a connection between Four-major rivers restoration projects and the physical attribute of water circulating the steps of evaporation, condensation and precipitation. Second, each pavilion presents circulative solid exhibit, circulative background exhibit, circulative reflective exhibit based on circulation. These three types of exhibition is related the floor separation. Third, each pavilion exhibit zone shows the most circulation, solid, background, reflexibility through educational contents and promoting contents by using graphic, video, sound media.

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Development of the Abstract Test Cases of Ship STEP

  • Kim Yong-Dae;Hwang Ho-Jin
    • Journal of Ship and Ocean Technology
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    • 제9권3호
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    • pp.23-32
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    • 2005
  • Ship STEP(Standard for the Exchange of Product Model Data) which is composed of AP 215 (Ship Arrangement), AP 216(Ship Hull Form), AP 218 (Ship Structure), has been developed more than last 10 years and it is now at the stage just before IS(International Standard). It is expected that ship STEP would be used for the seamless data exchange among various CAD/CAM/CAE systems of shipbuilding process. In this paper the huge and complicated data structure of ship STEP is briefly reviewed at the level of ARM(Application Reference Model) and some abstract test cases which will be included as part of the standards are introduced. Basically ship STEP has common data model to be used without losing compatibility among those three different ship AP's, and it is defined as the modeling framework. Typical cases of data exchange during shipbuilding process, such as hull form data exchange between design office and model basin, midship structure data between shipbuilding yard and classification society are reviewed and STEP physical data are generated using commercial geometric modeling kernel. Test cases of ship arrangement at initial design stage and hydrodynamic data of crude oil carrier are also included.

현대 복식에서 표현된 한국적 조형 특성 연구 - 한국 회화의 운필, 여백의 개념을 중심으로 - (A Study on Korean Plastic Characteristics Expressed in Modem Costume - Laying Stress on the Concept of Void, Trait de Korean Painting -)

  • 김미갑;양숙희
    • 복식문화연구
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    • 제15권6호
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    • pp.965-981
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    • 2007
  • Since the latter half of 20 century, in Korea, there are many discussions on the identity of Korean itself in several divisions, in which the discussion on the identity in the part of the costume or the part of the art reflecting the life, is the subject which must not fail to be noticed. So, we try to study the common structure manifested in the Korean painting and the costume as a part of basic recognition of problems and the way of problem-solving for the research on the Koran formative characteristics. The method and the process of this study is first, to consider the characteristics of the plastic and style of the Oriental arts and the Occidental arts by discourse implicate the difference between Oriental and Occidental view and the recognition of the body in the two worlds. And in the study we try to apprehend the dynamic modern artistic value of Korean style through assimilation between the Korean style and Baroque style according to the theory of $W\ddot{o}lfflin$ about the classical style and Baroque style. We will describe the Korean identity by analyzing the Korean plasticity with the Occidental style of dress and paintings reflecting the Occidental culture and thought and the Oriental things, and modern paintings and dress in the present age. As a result, we can try to recherche the way of use of new design for the identity of Korean style, in the concept of the ellipsis, repetition of the retrait, obscur silhouette, and superimposition.

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한방병원에 입원한 경추 추간판 탈출증 환자의 치료 및 경제성 평가 연구 (An Analysis of Treatment and Economic Evaluation on the Part of Cervical HIVD Inpatients at Korean Medicine Hospital)

  • 이현재;장선정;허동석
    • 한방재활의학과학회지
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    • 제23권3호
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    • pp.159-175
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    • 2013
  • Objectives Herniated Intervertebral Disc of C-spine is one of the most common diseases that causes posterior neck pain. This study was designed to analyze the general distribution and hospital cost by day and case of Korean medical treatment for Cervical Herniated Intervertebral Disc (HIVD). Methods The 132 impatients for treatment of HIVD were analyzed according to the distribution of sex, age, the duration of HIVD, the contributory factors, the Clinical grade at admission, the clinical findings at admission, the duration of hospitalization, the clinical grade at admission and the hospital cost per day and case. Results 1) The total hospital cost per case averaged 1,985,600 Won, which was consisted of room charge 584,044 Won (29.41%), performance fee 511,463 Won (25.76%), herbal medication 381,517 Won (19.21%), Korean medical physiotherapy 296,310 Won (14.92%), food expenses 199,997 Won (10.07%) in order. 2) The total hospital cost per day averaged 137,285 Won, which was consisted of room charge 39,036 Won (28.43%), performance fee 33,594 Won (24.47%), herbal medication 30,642 Won (22.32%), food expenses 12,870 Won (9.37%), and the average duration of hospitalization was 15.1 days. 3) There was statistically significant difference in the consultation fee, room charge, and herbal medication on the part of sex. 4) There was statistically significant difference not only in the performance and consultation on the part of duration of hospitalization but also the in the duration of average duration of hospitalization. 5) There was statistically significant difference in the Korean medical physiotherapy and herbal medication on the part of clinical findings. 6) There was statistically significant difference in the Korean medical physiotherapy and herbal medication on the part of duration of HIVD. 7) There was statistically significant difference in the Korean medical physiotherapy and herbal medication on the part of clinical outcome. 8) There was not only statistically significant difference in the performance, but also in the herbal medication on the part of clinical grade at admission. Conclusions This study provides plenty of information to design out the specific terms of Korean medical expenses of Cervical HIVD inpatients hospitalized at Korean medicine hospital.

국내 프로 여자 농구와 배구 유니폼의 디자인 분석과 개선방안 (Design analysis and improvement of Korean women's basketball and volleyball uniforms)

  • 김선영
    • 복식문화연구
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    • 제23권3호
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    • pp.425-438
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    • 2015
  • This study aims to integrate sports uniform design into fashion as an effective communication means by analyzing the uniforms of women's pro basketball and volleyball teams in the country. As part of the research method, a literature review was conducted on the domestic pro sports background and women's basketball and volleyball uniforms. For empirical research, an analysis was performed of the uniforms of 12 teams in total: six women's pro basketball teams and six women's pro volleyball teams in the 2013~2014 league. The following results were obtained. First, in terms of formativeness, sleeveless shirts and shorts are basic in both basketball and volleyball. However, there are remarkable differences between the two. Shirts in volleyball are tighter, with the body figure visible, and shorts are shorter in length than those in basketball. Most basketball uniforms have a V-neckline and are collarless, while volleyball uniforms have a standup collar in all teams. Second, both basketball and volleyball apply the representative color of the sponsoring company and the team's typical color, but common colors, such as blue, navy, and white, are used in many teams, which fails to represent a uniquely differentiated image. Third, the logo or symbol of a sponsor is excessively applied to both basketball and volleyball uniforms. This downgrades the uniform's own esthetic features. Fourth, a fashionable uniform design, that reflects the bodily characteristics of women and the characteristics of the sports game would be a beneficial communication tool for all the tiers to become involved in participation and entertainment.

Performance-based structural fire design of steel frames using conventional computer software

  • Chan, Y.K.;Iu, C.K.;Chan, S.L.;Albermani, F.G.
    • Steel and Composite Structures
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    • 제10권3호
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    • pp.207-222
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    • 2010
  • Fire incident in buildings is common, so the fire safety design of the framed structure is imperative, especially for the unprotected or partly protected bare steel frames. However, software for structural fire analysis is not widely available. As a result, the performance-based structural fire design is urged on the basis of using user-friendly and conventional nonlinear computer analysis programs so that engineers do not need to acquire new structural analysis software for structural fire analysis and design. The tool is desired to have the capacity of simulating the different fire scenarios and associated detrimental effects efficiently, which includes second-order P-D and P-d effects and material yielding. Also the nonlinear behaviour of large-scale structure becomes complicated when under fire, and thus its simulation relies on an efficient and effective numerical analysis to cope with intricate nonlinear effects due to fire. To this end, the present fire study utilizes a second-order elastic/plastic analysis software NIDA to predict structural behaviour of bare steel framed structures at elevated temperatures. This fire study considers thermal expansion and material degradation due to heating. Degradation of material strength with increasing temperature is included by a set of temperature-stress-strain curves according to BS5950 Part 8 mainly, which implicitly allows for creep deformation. This finite element stiffness formulation of beam-column elements is derived from the fifth-order PEP element which facilitates the computer modeling by one member per element. The Newton-Raphson method is used in the nonlinear solution procedure in order to trace the nonlinear equilibrium path at specified elevated temperatures. Several numerical and experimental verifications of framed structures are presented and compared against solutions in literature. The proposed method permits engineers to adopt the performance-based structural fire analysis and design using typical second-order nonlinear structural analysis software.

구획배치에 따른 최소 전단력을 고려한 H-CSR 기반 중형 살물선 종강도 부재의 중량 절감 방안 연구 (On the Weight Reduction of Longitudinal Members of Mid-Sized Bulk Carrier Considering the Minimum Shear Force according to Compartment Arrangement based on H-CSR)

  • 나승수;송하철;정솔;박민철;배상돈
    • 대한조선학회논문집
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    • 제54권4호
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    • pp.352-359
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    • 2017
  • Because the Energy Efficiency Design Index(EEDI) came into effect in 2013, it is necessary to develop a new technology to overcome $CO_2$ emission regulations. In structural design viewpoint, lots of researches are carried out to develop eco-friendly and high fuel efficiency ships by weight reduction. By using the automated compartment arrangement system and automated structural design algorithm which were developed by the authors, new researches are performing to combine the above two systems. However, the effect of weight reduction was not significant because structural designs by using these systems for the midship part was carried out only focused on the minimum still water bending moment. In this paper, at first, good compartment arrangements which give the minimum still water bending moment and(or) shear force were chosen by using the automated compartment system. And then, influence of shear force on weight reduction was investigated by using the automated structural design algorithm considering longitudinal strength, local strength and shear strength of longitudinal members in cargo holds. Conclusively, it is necessary to consider the minimum still water bending moment and shear force simultaneously to reduce the weight of mid-sized bulk carrier. Also, good compartment arrangement which gives much more weight reduction compared with existing ship was proposed.

소셜 네트워크 분석 방법론을 활용한 1인 주거공간디자인 융합콘텐츠 상관관계 분석 (A Study on Correlation Analysis of One-Person Housing Space Design Convergence Contents by Using Social Network Analysis)

  • 박은수;김지은
    • 한국과학예술포럼
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    • 제34권
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    • pp.133-148
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    • 2018
  • 우리나라의 가구구조는 앞으로 1인 가구가 가장 보편적인 가구 유형이 될 것으로 예측되고 있다. 이에 본 연구는 급격히 늘어난 1인 가구 주거자의 삶을 총체적으로 고려한 1인 주거 공간을 디자인하기 위한 콘텐츠를 도출하기 위해, 1인 가구 주거를 형성하는 사회·경제·문화적 영향요인 등을 빅데이터 분석을 통해 객관적으로 도출하고, 콘텐츠 간의 상관관계를 소셜 네트워크 분석 방법론을 활용하여 다각적으로 분석하였다. 빅 데이터 분석 방법론을 적용해 1인 주거공간과 관련된 총 60개의 핵심 콘텐츠를 도출하였으며, 소셜네트워크 분석을 통해 가장 영향력이 큰 콘텐츠는 공간의 편집, 공간 구성 카테고리로 도출되었다. 이는 주거공간은 사용자의 삶의 변화에 따라 탄력적으로 대응할 수 있는 디자인 아이디어가 중요한 부분을 차지한다고 볼 수 있다. 앞으로 더욱 구체화된 1인 주거 공간의 컨셉 및 디자인방법론에 대한 연구를 진행하고자 한다.