• Title/Summary/Keyword: 피부층

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Structure and Function of Tight Junctions in the Skin (피부에서의 치밀이음의 구조와 기능)

  • Song, Mee;Baek, Ji Hwoon
    • Journal of the Society of Cosmetic Scientists of Korea
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    • v.48 no.2
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    • pp.181-188
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    • 2022
  • The skin protects the body from excessive water loss and the invasion of harmful substances, such as chemicals and microbes. The stratum corneum, is recognized as a very important physical barrier. However, in recent years evidence emerged that tight junctions (TJ) might also play a crucial role in barrier function of the skin. In the present study, TJ proteins including transmembrane proteins and plaque proteins, skin permeability barrier function and skin diseases of TJ were reviewed.

Development of Maya Shader Plug in Based on Subsurface Scattering for Realistic Skin Rendering (사실적인 피부 렌더링을 위해 표면하 산란 모델을 적용한 마야 쉐이더 플러그인 개발)

  • Yoo Tae Kyung;Lee Won Hyung;Jahng Sung Ghab
    • Journal of Korea Multimedia Society
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    • v.8 no.1
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    • pp.88-100
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    • 2005
  • In computer graphics, realistic skin rendering has been regarded as difficult tasks and remains as an important research subject. Translucent materials like skin have some complicated optical properties including subsurface scattering. In this paper, we proposes a skin shader based on subsurface scattering to render realistic skin and it has been implemented as a plug-in for Maya, 3D Package. The rendered image using this proposed skin shader appears more realistic than the rendered image using classical shading techniques. Furthermore, we could model sebum, epidermis, dermis using specular reflection, multiple scattering, single scattering respectively.

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A Study on the Information Search Action for Skin Care of Women in Their Twenties -on the Information Source- (20대 여성의 피부관리 정보탐색행동에 관한 연구 -정보원을 중심으로-)

  • Kim, Do Hyeon
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.17 no.1
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    • pp.700-709
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    • 2016
  • This study examined the importance of the skin care source on the consumer's general characteristics (lifestyle, residential district and income). The questionnaire survey results showed that women in their twenties choose dermatologic clinics as the best source for skin care. The three-way ANOVA using three variables (lifestyle, residential district and income) showed notable differences between the dermatologic clinic, newspaper?magazine, family?friends, and internet sources. Some suggestions for a marketing strategy were made. For example, newspaper?magazine targeting high income consumers is a good means for dermatologic clinics in Seoul and the Internet is better than other sources for other industries in Daejon.

Ultrastructure and Histochemistry on the Integumentary System of the Rockfish, Sebastiscus tertius (Teleostei: Scorpaenidae) (붉은쏨뱅이 (Sebastiscus tertius) 피부계의 미세구조 및 조직화학적 특징)

  • Baek, Jae-Min;Kim, Chul-Won;Lim, Sang-Gu;Lee, Jae-Bong;Lee, Jung-Sick
    • Applied Microscopy
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    • v.34 no.2
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    • pp.83-93
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    • 2004
  • Integumentary structures of the rockfish, Sebastiscus tertius were examined by means of the light and transmission electron microscopy. Stratified epidermal layer consists of supporting cells, unicellular glands, granular cells and mitochondria-rich cells. The epidermal layer could be classified into superficial, intermediate and basal layer by morphology and structure of the supporting cells. Mucous cells of unicellular gland were observed in the superficial and intermediate layer of the epidermis. The mucous materials were identified as acidic and carboxylated mucosubstance by histochemical methods. Club cell has well-developed central vacuole, rough endoplasmic reticula and Golgi complex in the cytoplasm. Granular cells were observed in the superficial layer and contained numerous granules of high electron density. Mitochondria-rich cells are characterized by well-developed microfilaments in cortex and numerous tubular mitochondria in medullar cytoplasm. Three types of pigment cells in the dermal layer could be distinguished with electron density of cytoplasmic inclusions.

Evaluation of Dose Variation according to Air Gap in Thermoplastic Immobilization Device in Carbon Ion (탄소입자 치료 시 열가소성 고정기구의 공기층에 따른 선량 변화 평가)

  • Ye-jin Na;Ji-Won Jang;Se-Wuk Jang;Hyo-Kuk Park;Sang-Kyu Lee
    • The Journal of Korean Society for Radiation Therapy
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    • v.35
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    • pp.33-39
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    • 2023
  • Purpose: The purpose of this study is to find out the dose variation according to thickness of the air gap between the patient's body surface and immobilization device in the treatment plan. Materials and Methods : Four conditions were created by adjusting the air gap thickness using 5 mm bolus, ranging from 0 mm to 3 mm bolus. Immobilization was placed on top in each case. And computed tomography was used to acquire images. The treatment plan that 430 cGy (Relative Biological Effectiveness,RBE) is irradiated 6 times and the dose of 2580 cGy (RBE) is delivered to 95% of Clinical Target Volume (CTV). The dose on CTV was evaluated by Full Width Half Maximum (FWHM) of the lateral dose profile and skin dose was evaluated by Dose Volume Histogram (DVH). Result: Results showed that the FWHM values of the lateral dose profile of CTV were 4.89, 4.86, 5.10, and 5.10 cm. The differences in average values at the on the four conditions were 3.25±1.7 cGy (RBE) among D95% and 1193.5±10.2 cGy (RBE) among D95% respectively. The average skin volume at 1% of the prescription dose was 83.22±4.8%, with no significant differences in both CTV and skin. Conclusion: When creating a solid-type immobilization device for carbon particle therapy, a slight air gap is recommended to ensure that it does not extend beyond the dose application range of the CTV.

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약용작물 병해층 도감(8) - 천궁(川芎)

  • An, Tae-Jin
    • Life and Agrochemicals
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    • s.282
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    • pp.38-39
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    • 2012
  • 산형과에 속하는 다년생 초본식물로, 약용으로 재배하며 뿌리를 이용한다. 대장균이나 피부진균의 발육을 억제시키는 항균(抗菌)과 진정(鎭靜), 혈압강하(血壓降下)의 효능이 탁월하다.

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Sclerotic Fibroma Presenting as an Axillary Mass: A Case Report with Imaging Features (액와부에서 발생한 경화성 섬유종: 영상 소견을 포함한 증례 보고)

  • Tae-Eun Kim;Ji Young Lee
    • Journal of the Korean Society of Radiology
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    • v.82 no.4
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    • pp.977-981
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    • 2021
  • Sclerotic fibroma or storiform collagenoma is a rare benign neoplasm that predominantly affects the skin layer of the head, neck, or limbs. Less frequently, it occurs in non-dermal spaces such as the subcutaneous layer. No cases have been reported in the axilla, and imaging findings of this rare entity have not been described in the literature so far. We present a case of sclerotic fibroma in the deep subcutaneous fat layer of the axilla and describe its ultrasound and computed tomography imaging features.