• Title/Summary/Keyword: skin characteristics

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Mycologic Characteristics of Trichophyton tonsurans (Trichophyton tonsurans의 진균학적 성상)

  • Bang, Young Jun;Kim, Ssang Young;Shin, Du Man
    • Korean Journal of Clinical Laboratory Science
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    • v.36 no.1
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    • pp.7-12
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    • 2004
  • Trichophyton(T.) tonsurans has been identified for the first time in Korea in 1995 and has been increasing in number of reported in wrestlers, in judo players, and in korean - style wrestlers. Author tried mycological studies with T. tonsurans is isolated in Daegu Korea. The results are as follows: All 16 strains of T. tonsurans tested for nutritional requirement, showed strongly stimulated growth by thiamine, mild to moderate growth on casamino acid agar, poor growth on ammonium nitrates base agar. All 16 strains of T. tonsurans tested showed positive results for hair perforation and urease test. Gross findings of T. tonsurans showed that fine granular surface with light yellow hue or white color and mahogany brown color on the reverse side. Microscopic findings showed that septated hyphae, chlamydoconidia and microcondia. Microconidia were characteristic in their arrangerment and shape : round or oval shaped microconidia laterally to hyphae, some were match - head like terminal swelling.

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A Study on the Improvement of Bearing Capacity Prediction Equation for Auger-drilled Piling (매입말뚝공법의 지지력 예측식 개선에 관한 연구)

  • 최도웅;한병권;서영화;조성한
    • Proceedings of the Korean Geotechical Society Conference
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    • 2002.10a
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    • pp.382-389
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    • 2002
  • Recently, auger-drilled piling has been widely used in urban area to reduce the air pollution and noise. But this construction method that its basic theory was introduced from Japan may be changed depending on the each piling company and construction field condition. Therefore, the design code and management method for auger-drilled piling is not defined yet. Especially, the lack of research on the bearing capacity of auger-drilled piling leads to the absence of rational bearing capacity prediction equation. This paper presents the optimum design code and economical construction method of the auger-drilled piling by proposing the new bearing capacity prediction equation based on the site specific soil types and construction conditions. In this paper, existing bearing capacity prediction equations and current pile load tests were compared. And the end bearing capacity and skin friction characteristics were also analyzed by comparing the results of CAPWAP. From the results of analysis, a reliable bearing capacity prediction equation considered soil types is proposed.

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Characteristic Analysis of Spiral Type Thin-Film Inductor Using Finite Element Method (유한요소법을 이용한 스파이럴 박막인덕터의 특성해석)

  • Ha, Gyeong-Ho;Hong, Jeong-Pyo;Song, Jae-Seong;Min, Bok-Gi;Kim, Hyeon-Sik
    • The Transactions of the Korean Institute of Electrical Engineers B
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    • v.48 no.11
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    • pp.617-624
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    • 1999
  • The spiral type thin-film inductor performed in high frequency at 2-5[MHz] range is analyzed by 2-dimensional Finite Element Method(2D FEM). The features of micro thin-film inductor have complicated electromagnetic phenomenon such as skin effect, proximity effect and magnetic saturation. To develope miniatured magnetic device considering these features, it is important to predict the property of the thin film inductor according to design parameter. In this paper, we present the 2D FEM analysis for the spiral type thin film inductor. The characteristics of inductor from point of view of inductance, resistance and quality factor are studied according to design parameter and various pattern construction.

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Concrete filled double skin tubular members subjected to bending

  • Uenaka, Kojiro;Kitoh, Hiroaki;Sonoda, Keiichiro
    • Steel and Composite Structures
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    • v.8 no.4
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    • pp.297-312
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    • 2008
  • A concrete filled double skin tubular (called CFDST in abbreviation) member consists of two concentric circular steel tubes and filled concrete between them. Purpose of this study is to investigate their bending characteristics experimentally. The two test parameters of the tubes considered were an inner-to-outer diameter ratio and a thickness-diameter ratio. As a result, their observed failure modes were controlled by tensile cracking or local buckling of the outer tube. Discussion is focused on the confinement effect on the filled concrete due to the both tubes and also the influence of the inner-to-outer diameter ratios on their deformability and load carrying capacity.

Effects of walking speed on peak plantar pressure in healthy subjects (정상인에서 보행 속도가 발바닥의 최대압력분포에 미치는 영향)

  • Ha, Mi-Sook;Nam, Kun-Woo
    • Journal of Korean Physical Therapy Science
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    • v.22 no.2
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    • pp.43-47
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    • 2015
  • Background : Many factors affect foot and ankle biomechanics during walking, including gait speed and anthropometric characteristics. This study examined the effect of walking speed on peak plantar pressure during the walking. Method : Thirty two normal healthy subjects (16 men, 16 women) were recruited. Peak plantar pressure was investigated using pressure distribution platforms (Pedoscan system) under the hallux heads of the first, second, and third metatarsal bones, and heel. Result : The results also suggest that slow walking speeds may decrease forefoot peak plantar pressure in patients with peripheral neuropathy who have a high risk of skin breakdown under the forefoot(p<0.05). Conclusion : The results also suggest that slow walking speeds may decrease forefoot peak plantar pressure in patients with restricted low extremity range of motion who have a high risk of skin breakdown under the forefoot.

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A Study of Onion Skin Pigments in the Extracting Solvents and Residual Pigments after Dyeing the Textiles

  • Bae, Soon-Ei
    • Journal of Fashion Business
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    • v.13 no.3
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    • pp.109-117
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    • 2009
  • To set up the outstanding and scientific dyeing method in making the condensed liquid of pigment obtained from onion skins and the improved reliability, the following basic experiments were performed. The pigment was extracted in the distilled water at $70^{\circ}C$ and methanol at room temperature and then it was analyzed with LC/MS/MS system (Liquid Chomatography/Mass Spectroscopy/Mass Spectroscophy, LIQ Advantage Max, Thermo Finnigan, USA) for its pigmental characteristics. The unrefined silk and refined silk were dyed by making use of the derived pigment in such a way. The chromameter (CR-200, Minolta, Japan) was used to measure the change in surface color in textiles to be dyed by the extracting condition and the color difference ${\Delta}E$ was determined according to the color difference formula CIE LAB through measuring the psychometric lightness L* and chromaticity coordinates a* and b*.

EXTERNAL GEL FORMULATIONS OF PROSTAGLANDIN E1 ETHYL ESTER

  • Kim, Hee-Kyu;Kim, Jong-Seok;Lee, Sang-Kil;Yang, Sung-Woon;Lee, Ji-Eun;Choi, Han-Gon;Yong, Chulsoon;Choi, Young-Wook
    • Proceedings of the PSK Conference
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    • 2003.04a
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    • pp.296.1-296.1
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    • 2003
  • Purpose. External gel formulations of prostaglandin E1 ethyl ester (PGE1-EE), a prod rug of PGE1 as a therapeutic agent for erectile dysfunction, were tried and evaluated by in vitro skin penetration characteristics and in vivo pharmacodynamic effects in cat. Method. The in vitro skin penetration was performed with Franz diffusion cell and examined in aspects of alcohol/polyol ratios and various enhancers. (omitted)

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Technetium-99m hand perfusion scintigraphy (Raynaud's scan) as a method of verification in hand arm vibration syndrome: a review

  • Taewoong Ha;Hyeoncheol Oh;Jungwon Kim
    • Annals of Occupational and Environmental Medicine
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    • v.34
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    • pp.26.1-26.13
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    • 2022
  • It is important to assess the blood flow of fingers in the verification of hand-arm vibration syndrome. In the Republic of Korea, most assessments of the blood flow in the fingers are performed using a cold provocation test with finger skin color change. However, this test is a non-objective method with a relatively low sensitivity, leading to possible social and legal problems. Thus, we reviewed the characteristics of several tests that assess the blood flow in the fingers. Among these tests, using the radioactive isotope method, Raynaud's scan has a relatively higher sensitivity and specificity than other tests, provides objective results, and is approachable in many hospitals. So we suggest using Raynaud's scan as an alternative test when cold provocation test with finger skin color change is negative in vibration exposed worker.

A Study of Clinical Characteristics of Female Patients with Cold Hypersensitivity on Hands and Feet (여성 수족냉증 환자의 임상 특성에 관한 연구)

  • Kwon, Jung-Yeon;Kim, Young-Ji;Kong, Kyung-Hwan;Jeon, Chan-Yong;Go, Ho-Yeon;Ko, You-me
    • The Journal of Korean Medicine
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    • v.39 no.2
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    • pp.64-79
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    • 2018
  • Objectives: This study was aimed to research clinical characteristics of female patients with cold hypersensitivity on the hands and feet compared with non-cold hypersensitivity group. Methods: 134 women patients were collected from 6 Korean medicine hospitals, and divided into 2 groups(cold hypersensitivity group and non-cold hypersensitivity group). This survey was composed of 19 questions related to clinical symptoms of cold hypersensitivity. Results: We found out the differences between 2 groups in 10 questions among 19 questions in the survey results. (Body Type, Energy, Digestibility, Skin Type, Facial Complexion, Chill, Dry Mouth and Thirst, Preference between Coolness and Warmth, Thickness of Tongue Fur, Floating and Sinking of Pulse) Conclusions: From these results, Patients with cold hypersensitivity on hands and feet have relative clinical characteristics as follows. They are relatively weak and lethargic. They have dry skin and look more pale. They feel chill easily and have dry mouth and thirst. They prefer warmth and have indigestion more. They had more various infirm and ill clinical characteristics compared with the other group from the view of Korean medicine.

Hydrolysis characteristics and applications of silk sericin II. Characteristics of soluble sericin and its application on human skin (실크 세리신의 가수분해 특성과 응용 II. 수용성 세리신의 특성과 피부에의 응용)

  • 김정호;배도규
    • Journal of Sericultural and Entomological Science
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    • v.45 no.1
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    • pp.58-65
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    • 2003
  • This study was carried out to investigate the characteristics of the soluble sericins after degumming and after hydrolysis of insoluble sericin with various enzymes. Physical and chemical characteristics of the soluble sericins were also studied and pack test was conducted. Electro donating ability of the various sericins became higher as high>low>KP>PP>PA. In FT-IR analysis, the band of insoluble sericin at 3,285cm$\^$-1/ was shifted to the lower wavelengths in soluble sericins. The intensity of the amide II band was reduced and shifted to lower wavelengths as a result of hydrolysis. In DSC analysis, all sericins showed endothermic peaks around 200$^{\circ}C$ and insoluble sericin showed another peak at 250$^{\circ}C$. The endothermic peak of the insoluble sericin was found at higher temperature compared with those of the soluble sericins which showed at 300$^{\circ}C$. Whiteness of the various sericins became higher as low>high>PP>PA>PK>IN and yellowness were PK>PA>PP>low>high. In pack test, the skin packed with the non-woven fabric treated with the various sericins was more smooth and less oily.