• 제목/요약/키워드: internal materials

검색결과 3,138건 처리시간 0.031초

Minocycline as a treatment of dog with calcinosis cutis

  • Jang, Hye-Jin;Kang, Min-Hee;Sur, Jung-Hyang;Park, Hee-Myung
    • 대한수의학회지
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    • 제53권4호
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    • pp.253-256
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    • 2013
  • An 8-year-old, castrated male, Schnauzer dog was presented for evaluation of gradually worsening erythematous papules. Physical examination revealed multiple erythematous papules having a firm, gritty texture located in bilateral ears, dorsal midline, perianal and inguinal area. Skin biopsy revealed aberrant structure, characterized by atrophic epidermal-dermal layer structure with granular materials which was presumed as calcinosis cutis secondary to iatrognic hyperadrenocotricism. By initiating minocycline for 14 days, there was reduction in size, number of calcium deposit with remarkably decreased erythema. This case report presents the clinical trial of minocycline as a potential agent in treating dogs with calcinosis cutis.

감육이 존재하고 내압을 받는 T 분기관의 한계하중 평가식 (Limit Load Solutions for Piping Branch Junctions with local wall-thinning under Internal Pressure)

  • 류강묵;김윤재;이국희;박치용;이성호;김태룡
    • 대한기계학회:학술대회논문집
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    • 대한기계학회 2007년도 춘계학술대회A
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    • pp.1813-1817
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    • 2007
  • The present work presents plastic limit load solutions for piping branch junctions with local wall-thinning, based on detailed three-dimensional (3-D) and small strain FE limit analyses using elastic-perfectly plastic materials. Three types of loading are considered; internal pressure, in-plane bending on the branch pipe and in-plane bending on the run pipe. The wall-tinning located on variable area of the piping branch junction is considered. A wide range of piping branch junction and wall-thinning geometries are considered. Comparison of the proposed solutions with FE results shows good agreement

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Structural dynamics: Convergence properties in the presence of damage and applications to masonry structures

  • Nappi, Alfonso;Facchin, Giovanni;Marcuzzi, Claudio
    • Structural Engineering and Mechanics
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    • 제5권5호
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    • pp.587-598
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    • 1997
  • A numerical model for masonry is proposed by following an internal variable approach originally developed in the field of elastic-plastic analysis. The general features of the theoretical framework are discussed by focussing on finite element models applicable to incremental elastic-plastic problems. An extremum property is derived and its implications in terms of convergence for convenient algorithms are briefly discussed, by including the case of softening materials and damage effects. Next, a numerical model is presented, which is suitable for masonry, can be developed according to the same internal variable formulation and enjoys similar properties. Some numerical results are presented and compared with the response of a masonry shear wall subjected to pseudodynamic tests.

고대 샤이닝(Shining) 복식의 내적의미 분석 -장신구를 중심으로- (Analysis for the Internal Meaning of the Ancient Shining Costumes)

  • 김정애;이효진
    • 복식
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    • 제56권3호
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    • pp.12-27
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    • 2006
  • The purpose of this study was to analyze the mental, social and aesthetic facets contained in ancient shining costumes and to find out the internal meaning of ancient shining costumes that they wished to express. This study was based on the theoretical data regarding the materials, types, and characteristics of the shining costumes. Egypt, Rome, Greece and several Mesopotamian countries have been included as a scope of research. The literature examination skill was applied for the research. The internal meaning of ancient shining costumes could be understood as an instrument of expression regarding religion, social status and beauty.

내압을 받는 외부 국부 감육 직관의 파손 기준 (Failure Criterion of Straight Pipe with Outer Local Wall Thinning under Internal Pressure)

  • 김수영;남기우
    • 동력기계공학회지
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    • 제18권1호
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    • pp.76-83
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    • 2014
  • This study was carried out an experimental and finite element analysis on the fracture behavior of straight pipes with local wall thinning under internal pressure. Local wall thinning was machined on the pipes in order to simulate erosion/corrosion metal loss. The configurations of the eroded area has an eroded ratio of d/t=0.80~0.92 and an eroded length of l=25, 50 and 102 mm. Three-dimensional elastic-plastic analyses were also carried out using the finite element method, which is able to accurately simulate failure behaviors. In regards to the relation ship between pressure and eroded ratio, the criterion that can be used safely under operating pressure and design pressure were obtained from this calculation. The results of this calculation were in relatively good agreement with that of the experiment.

온간 단조에서의 냉각방법에 따른 금형 수명 예측 (Prediction of Tool Life on Cooling System in Warm Forging)

  • 이현석
    • 한국소성가공학회:학술대회논문집
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    • 한국소성가공학회 2000년도 춘계학술대회논문집
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    • pp.67-70
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    • 2000
  • The tool life is not long enough under sever forming condition in warm forging. The tool life is affected by wear heat fatigue plastic deformation and so on. Especially wear is one of the most serious factors for tool life. To increase tool life we should consider various factors like processing design die design die materials lubrication and cooling system This study design to obtain the steady state temperature of die by FEM analysis under several conditions of cooling. There are four cooling conditions in this study no cooling internal cooling external cooling and both internal and external cooling. With above obtained temperatures tool life is predicted using Archard's model that is considered softening of die. The effect of internal cooling system is better than that of externally cooled die. To predict the die life the steady state temperature is calculated by using mean temperature of die. Considering only wear the die life much longer as the cooling effect is bigger. The more accurate die life will be predicted if we consider heat crack as well as wear.

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전기도금법으로 제조한 Ni-Fe 나노박막의 스트레스와 자기적 특성에 미치는 용액의 조건 및 전류밀도의 영향 (Effect of Bath Conditions and Current Density on Stress and Magnetic Properties of Ni-Fe Nano Thin Films Synthesized by Electrodeposition Methods)

  • 구본급
    • 한국표면공학회지
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    • 제44권4호
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    • pp.137-143
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    • 2011
  • The internal stress and magnetic properties (coercivity and squareness) of Ni-Fe nano thin film synthesized by electrodeposition method were studied as a function of acidic chloride bath conditions (composition and temperature) and current density. Fe deposition patterns were different depending on the temperature of the solution, the stress of film decreased with increasing the solution temperature, and the depending on the amount of Fe deposition showed a parabolic shape. The grain size of film was inversely proportional to stress of thin film. The internal stress of thin film and magnetic properties were deeply relevant, and the stress of thin film had a relationship with bath conditions and grain size of the thin film surface.

4, 5세 유아의 놀이감 종류에 따른 가상이야기 꾸미기 (Narrative Structure of 4-and 5-year-olds by Type of Play Materials)

  • 신유림;박주희;신혜영
    • 아동학회지
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    • 제18권1호
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    • pp.53-63
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    • 1997
  • The purpose of this study was to investigate the relationship between age, internal state information, and narrative structure. Another purpose was to examine how the kinds of replica play and story props affect the theme of children's narratives. The subjects were 36 4-and 5-year-olds. Children's narratives were audiotaped and analyzed accordmg to narrative structure, themes and internal state factors. The results indicated that 5-year-olds showed well organized narrative structure such as a descriptive narrative and a primary plotted narrative whereas 4-year-old presented no response and a descriptive narrative. Also, 5-year-olds used more internal state information in the narratives than 4-year-olds. The replica figures serve to remind the chiidren of story themes: the children with police props presented negative themes while children with playground props showed positive themes.

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Mössbauer Analysis of Cations on Iron Oxyhydroxide Formation

  • Oh, Sei-Jin;Kwon, Soon-Ju
    • 한국자기학회지
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    • 제15권2호
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    • pp.85-91
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    • 2005
  • Effect of different cations to the formation of iron oxyhydroxide was studied using $M\ddot{o}ssbauer$ spectroscopy, X-ray diffraction (XRD) and BET. Redox Potential and pH were measured for the determination of the internal reaction rate, as well. The phases of iron oxyhydroxide could not be the same with each other, due to the presence of different cations in solution. Although the oxyhydroxide compound was composed of the same phases, the fraction of each phase was different from each other. The internal reaction rate was varied by the substitution of cation. It could be a cause of the different phase and particle size of oxyhydroxide compound.

측두하악관절 내장증 환자의 임상증상과 자기공명영상 소견의 비교 연구 (Comparison of MRI findings with clinical symptoms in temporomandibular joint internal derangement)

  • 권기정
    • Imaging Science in Dentistry
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    • 제35권2호
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    • pp.69-75
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    • 2005
  • Purpose : To determine the clinical correlation of magnetic resonance imaging (MRI) findings of temporomandibular joint internal derangements. Materials and Methods : The MR images of 150 TMJs in 75 patients were analyzed. The clinical symptoms were pain in the preauricular area and masticatory muscles and TMJ sounds. Results : There was a statistically significant relationship between the MRI diagnoses of different types of disc displacements and clinical findings of pain, clicking, and crepitus. The risk of TMJ pain was increased when the disc displacement without reduction occurred at the same time in combination with the osteoarthrosis and effusion. Conclusion : Regardless of the results, the data indicate that each of these MR imaging variables may not be regarded as the unique and dominant factor in defining TMJ pain occurrence.

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