• Title/Summary/Keyword: body transformation

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Characteristic Flux-Difference Improvement for Inviscid and Viscous Hypersonic Blunt Body Flows

  • Lee Gwang-Seop;Hong Seung-Gyu
    • 한국전산유체공학회:학술대회논문집
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    • 1999.11a
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    • pp.48-58
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    • 1999
  • The Characteristic Flux Difference Splitting (CFDS) scheme designed to adapt the characteristic boundary conditions at the wall and inflow/outflow boundary planes satisfies Roe's property U, although the CFDS Jacobian matrix is decomposed by a product of elaborate transformation matrices and explicit eigenvalue matrix. When the CFDS algorithm, thus a variant of Roe's scheme, is applied straightforwardly to hypersonic flows over a blunt body, the strong bow shock gradually breaks down near the stagnation point. This numerical instability is widely observed by many researchers employing flux-difference method, known in the literature as the carbuncle phenomenon. Many remedies have been proposed and resulted in partial cures. When the idea of Sanders et al. which identifies the minimum eigenvalues near the discontinuity present is applied to CFDS method, it is shown that the instability problem can be controlled successfully. A few flux splitting methods have also been tested and results are compared against the Nakamori's Mach 8 blunt body flow.

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A Study on Biomechanical Noise Reduction Technique Using Length Information (길이 정보를 이용한 생체 잡음 제거 기술에 관한 연구)

  • Gang, Sin-Gil;Yun, Yong-San;Park, Jae-Hui
    • Transactions of the Korean Society of Mechanical Engineers A
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    • v.24 no.7 s.178
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    • pp.1643-1649
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    • 2000
  • When markers attached to body segment are captured by camera, they generally have many noises due to intrinsic biomechanical characteristics. In this study, one technique to reduce these noises is suggested, which constructs a local coordinates of the markers using time-mean lengths of the measured markers and calculates a linear transformation matrix of the interesting body using least square error technique. This matrix is decomposed into two matrices of rotation and flexibility. Suggested method does well for 3 markers or more, and shows consistent results without regard to choice of reference axis.

A Study on the Abstraction of the Human Body in Contemporary Dance Costumes - Focusing on Oscar Schlemer's Costume Theory - (현대 무용의상에 나타난 인체의 추상화에 관한 연구 - 오스카 슐레머의 의상이론을 중심으로 -)

  • Han, Kyeng-Ha;Geum, Key-Sook
    • Journal of the Korean Society of Costume
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    • v.60 no.10
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    • pp.133-145
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    • 2010
  • The study used four basic formats classified based on the four principles on costumes discussed in the paper 'Human Beings and Arts Phenomena' by Oskar Schlemmer who studied the relationships between stage space and the human body as an analysis tool with regard to analyses on the abstraction of human body in contemporary dance costume. Abstraction of human body expressed in costume for contemporary dance is as follows: Expansions caused by unclear boundary between spaces and costumes, and the principles of three-dimensional abstract spaces based on a geometric cube change heads, trunks, arms and legs to achieve expansions. Similar mechanical shape is a type of shape made in a succession of functional principles of human body in relationships with spaces. As mechanical mechanism is added to the geometric transformation of a specific part of human body, mechanicalness is contained in it. Motion organisms are geometric simplification of moving traces in a space based on conversion into mechanical organisms based on principles of motion, and as mechanical rotation, consecutive speed caused by refraction and directionality are suggested, mobility is achieved. Immaterial shape is based on change into a metaphysical form, and it is converted into animals, plants or a third life that symbolize body parts. It has metaphysical significance in each body part and extends sensibility. As a result of the study, development into abstract succession and a techno art mode has been confirmed. Combination of geometric cubic figures with the organic human body and configuration of the human body pursued by Oskar Schlemmer's geometric abstraction through the proactive accommodation of mechanical aesthetics has been succeeded and expressed in the contemporary dance costumes.

A Review on the Fluid and Humor[津液] and Gi Transformation[氣化] in Bladder[膀胱] (방광(膀胱) 진액(津液)과 기화(氣化)에 관(關)한 고찰(考察))

  • Song, Ji-Chung;Keum, Kyung-Soo;Eom, Dong-Myung
    • Journal of Korean Medical classics
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    • v.23 no.3
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    • pp.103-110
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    • 2010
  • Conceptions about functions of bladder in Oriental Medicine are focused on excretion of urine, such as "Somun(素問)" "Yeong-ranbijeonron(靈蘭秘典論)". However, functions of bladder cannot be in those. In Oriental Medicine, there are sentences in "Naegyeong", the fluid and humor is dispersed to whole body. It means that bladder has a function by reabsorption of the fluid and humor in metabolism with gi transformation, besides excretion of urine. In that reason, I try to find out meanings of bladder's functions in metabolism of the fluid and humor through bibliographic review. As a result, bladder has a 2 types of function. 1st, it is a excretion of urine that we have already mentioned. 2nd, it is a reabsorption of the fluid and humor.

A Neurofibroma Confused with Sarcomatous Transformation on F-18 FDG PET/CT in Neurofibromatosis-1 (신경섬유종증 환자의 F-18 FDG PET/CT에서 육종전환으로 오인된 신경섬유종)

  • Park, Soon-Ah;Song, Jeong-Hoon;Yang, Chung-Yong;Kim, Hun-Soo;Park, Seung-Chol
    • Nuclear Medicine and Molecular Imaging
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    • v.43 no.4
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    • pp.361-362
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    • 2009
  • We present a patient with high $^{18}$F-fluorodeoxyglucose (FDG) uptake detected in a neurofibroma that was confused with sarcomatous transformation on a positron emission tomography/computed tomography (PET/CT) scan. A 39-year-old male patient with a 20-year history of neurofibromatosis-1 (NF-1) performed FDG PET/CT scan for the evaluation of lesions with sarcomatous transformation. The FDG PET/CT images demonstrated varying degrees of increased FDG uptake in the multiple nodules throughout whole body. The left pelvic mass with the highest FDG uptake had a maximum standardized uptake values (maxSUV) 5.0 and surgical resection was performed. Histological analysis confirmed the presence of a benign neurofibroma infiltrated with inflammatory cells.

Proposal on the Method of Regulating Ascending Kidney Water and Descending Heart Fire -through pharmacopuncture technique- (수승화강(水升火降) 조절법(調節法)(수화조절법(水火調節法))에 대한 제언 -약침을 이용하여-)

  • Kwon, Ki-Rok
    • Journal of Pharmacopuncture
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    • v.10 no.3
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    • pp.149-155
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    • 2007
  • Objectives The purpose of this study is aimed at diagnosing and suggesting treatment plans for commonly seen clinical manifestation of heat symptom in the upper body and coldness in the lower body, also known as hot above, cold below syndrome. Methods Various reasons attribute to the presence of hot above, cold below syndrome, but mainly contributed by blockage of normal Qi flow by abnormality of heart-kidney root, spleen-stomach axis, and liver-lung axis. Diagnosing these abnormalities and timely alleviation to the healthy state is presented in the study. Results 1For heat in the upper body, Huang Lian Jie Du Tang(黃連解毒湯), CF, or JsD pharmacopuctures are injected on GB21, GB20. Qi stagnation in the thoracic area is treated with BUM injection on CV17. For impairment of transportation and transformation in the middle energizer, BUM pharmacopuncture is injected on CV12. Coldness in the lower energizer was relieved by bee venom or Sweet BV(Bee Venom free from enzymes) on CV6. Conclusion Above proposed methods of regulating water-fire were effective in treating hot above, cold below syndrome in clinical manifestations. But once the symptom subsides, treatment focused on eliminating innate cause should be rendered to achieve more successful results.

Identification of the Genes Involved in the Fruiting Body Production and Cordycepin Formation of Cordyceps militaris Fungus

  • Zheng, Zhuang-Li;Qiu, Xue-Hong;Han, Ri-Chou
    • Mycobiology
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    • v.43 no.1
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    • pp.37-42
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    • 2015
  • A mutant library of Cordyceps militaris was constructed by improved Agrobacterium tumefaciens-mediated transformation and screened for degradation features. Six mutants with altered characters in in vitro and in vivo fruiting body production, and cordycepin formation were found to contain a single copy T-DNA. T-DNA flanking sequences of these mutants were identified by thermal asymmetric interlaced-PCR approach. ATP-dependent helicase, cytochrome oxidase subunit I and ubiquitin-like activating enzyme were involved in in vitro fruiting body production, serine/threonine phosphatase involved in in vivo fruiting body production, while glucose-methanol-choline oxidoreductase and telomerase reverse transcriptase involved in cordycepin formation. These genes were analyzed by bioinformatics methods, and their molecular function and biology process were speculated by Gene Ontology (GO) analysis. The results provided useful information for the control of culture degeneration in commercial production of C. militaris.

Messages types in critical fashion design (크리티컬 패션의 비평적 메시지 유형)

  • Jung, Junghee;Yim, Eunhyuk
    • Journal of the Korea Fashion and Costume Design Association
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    • v.22 no.2
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    • pp.87-103
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    • 2020
  • This study investigates critical fashion and discusses its critical messages, as it challenges the existing system of the fashion industry. This study reviews the literature on critical art and critical design and analyzes exhibition catalogs, magazines, and websites related to critical fashion practices. Thereupon, this study assumes the two distinctive messages of critical fashion design: materiality and experience, and the redefinition of the ideal body. First, materiality and experience pursues a change in perceptions of clothing materials by way of deconstructing clothes and exposing the process of production. This type of critical fashion breaks away from the traditional sartorial conventions and articulates new structures and experiences through dematerialization. Second, the redefinition of the ideal human body attempts to subvert the stereotypes of ideal beauty and introduce a variety of beauty in the human body. This type of critical design reconstructs the human body through transformation, expansion, and deconstruction and is often liberated from the dichotomy of gender norms.

A Study on the Characteristics of Body Architecture as Social Structures Expressed in the Modern Fashion (현대 패션에 표현된 사회 구조물로서 신체 건축의 특성 연구)

  • Seo, Seung-Mi
    • The Research Journal of the Costume Culture
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    • v.18 no.5
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    • pp.842-856
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    • 2010
  • The relationships between fashion and architecture have been interactive. Since the fashion has had the role to decide the structure type of urban environment, it is becoming the new sign of space boundary. This study searches the social and cultural characteristics of Nomadism and the relationships among all kinds of changing objects. After then, the module system characteristics are meditated by analyzing the composition method of module system in architecture. Moreover, the study examines the aesthetic values in the fashion and body architecture from artistic aspect. Based on the above discussion, the followings are the characteristics of body architecture as the social structures expressed in modern fashion. The liquidity is the fluid form of dynamic structures. It shows the extended space form which produces the continuity. The transformation is the variable structure by module system and it forms the diversified structural combination. The movement combines the controlling function to be able to regulate and move freely the body related objects. The convergence is the text combination interpenetrated mutually in enlarged space. Through this, the non-linear continuity and the access of the individual factors are shown.

OPTIMIZATION OF WELDING PARAMETERS FOR RESISTANCE SPOT WELDING OF TRIP STEEL USING RESPONSE SURFACE METHODOLOGY

  • Park, Hyunsung;Kim, Taehyung;Sehun Rhee
    • Proceedings of the KWS Conference
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    • 2002.10a
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    • pp.366-371
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    • 2002
  • Because of the environmental problems, automotive companies are trying to reduce the weight of car body. Therefore, TRIP(TRansformation Induced Plasticity) steels, which have high strength and ductility have been developed. Welding process is a complex process; therefore deciding the optimal welding conditions on the basis of experimental data is an effective method. However, trial-and-error method to decide the optimal conditions requires too many experiments. To overcome these problems, response surface methodology was used. Response surface methodology is a collection of mathematical and statistical techniques that are used in the modeling and analysis of problems in which a response of interest is influenced by several variables and the objective is to optimize this response. This method was applied to the resistance spot welding process of the TRIP steel to optimize the welding parameters.

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