• 제목/요약/키워드: Treat

검색결과 6,589건 처리시간 0.029초

미세액적의 표면에너지 제어를 통한 박막 제조 공정에 대한 연구 (A NUMERICAL STUDY ON A THIN FILM MANUFACTURING PROCESS USING THE CONTROL OF SURFACE ENERGY OF A MICRODROPLET)

  • 서영호;손기헌
    • 한국전산유체공학회:학술대회논문집
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    • 한국전산유체공학회 2008년 추계학술대회논문집
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    • pp.221-226
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    • 2008
  • Numerical simulation is performed for microdroplet deposition on a pre-patterned micro-structure. The level-set method for tracking the liquid-gas interface is extended to treat the immersed (or irregular-shaped) solid surface. The no-slip condition at the fluid-solid interface as well as the matching conditions at the liquid-gas interface is accurately imposed by incorporating the ghost fluid approach based on a sharp-interface representation. The method is further extended to treat the contact angle condition at an immersed solid surface. The present computation of a patterning process using microdroplet ejection demonstrates that the multiphase characteristics between the liquid-gas-solid phases can be used to improve the patterning accuracy.

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3단 회전식 건조성형장치 설계 프로그램 개발 (A Development of Design System Program for the 3-pass rotary dryer)

  • 김태식;최윤환;도덕희;이연원
    • 동력기계공학회지
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    • 제10권2호
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    • pp.36-40
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    • 2006
  • In order to prevent the environmental pollution, the dryers are commonly used to treat sludge that one of sewages is polluting the quality of water. Generally, the drying method is various as to the property of material and use. Rotary dryer is a good apparatus to treat them. It is the way that is to make substance transmission and heat using hot air between sludge particle and heated gas. In this paper, we developed a 3-pass rotary dryer for a design program for the 3-pass rotary dryer with various conditions. The working conditions of dryer are a raw sludge feed rate, input & output water content and operation time etc.

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앤드리츠형 건조기의 내부 유동에 관한 해석 (Analysis of a inner flow of ANDRICH type dryer)

  • 김태식;최윤환;최광;이연원
    • 동력기계공학회지
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    • 제10권2호
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    • pp.54-61
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    • 2006
  • In order to prevent the environmental pollution, the dryers are commonly used to treat sludge that one of sewages is polluting the quality of water. Generally, the drying method is various as to the property of material and use. Rotary dryer is a good apparatus to treat them. The rotary dryer is the way that is to make substance transmission and heating using hot air between sludge particles and heated gas. In this paper, we performed a numerical analysis of the inner air flow of the ANDRICH type dryer through the changing rotational speed from 3rpm to 10rpm. A PIV can be applied to research a inner flow of ANDRICH type dryer.

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Regulation of Immunological Effect of Rubia cordifolia Extract and Associated MAPKs Pathway in RBL-2H3 Cell-line

  • Jeong, Eunbee;Lee, Deug-Chan
    • 한국자원식물학회지
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    • 제30권6호
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    • pp.662-669
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    • 2017
  • Rubia cordifolia has been used to treat diseases for many years in China and India. Although the biological properties and major compounds of R. cordifolia have been extensively studied, the underlying mechanisms of its biological effects remain elusive. In terms of immunological effects, anti-inflammation effect of macrophage (Raw 264.7) simply has been reported. In this study, R. cordifolia was extracted in 70% ethanol and the extract did not affect to macrophage (Raw 264.7) pro-inflammation and T cell (Molt-4). However, in mast cell (RBL-2H3), it showed inhibition of degranulation. The inducing inhibitory effect on degranulation was related to concentration dependent variation in phosphorylation of ERK-1/2 and upregulating the JNK phosphorylation in RBL-2H3 cells. Based on these data, we concluded that R. cordifolia newly have anti-allergenic effects in RBL-2H3 and might be used as a therapeutic agent to treat or prevent allergic diseases such as asthma and atopic dermatitis.

흡착 소재별 도로 노면 유출 오염원의 저감성 비교 연구 (Feasibility Study with Several Sorption Materials to Treat Road Runoff Pollutions)

  • 박상우;오재일;최영화
    • 상하수도학회지
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    • 제20권5호
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    • pp.709-717
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    • 2006
  • This research was conducted to figure out the feasibility of several sorption materials to treat various pollutants in road runoff. In advance of the major feasibility test with various sorption materials, the separation process with $1.2{\mu}m$ filter was conducted and showed that slight portion of pollutants was removed(Orgamic pollutant - 20%, Nutrient salt - 50%, Heavy metals - 0~30%). To remove dissolved pollutants in runoff, various materials were tested through an isotherm sorption experiment. As a result, GAC showed most effective material among them to lessen most contaminants such as organic compounds and nutrients. On the other hand, ion-exchange resin and Zeolite showed limited usefulness on the some heavy metals. Freundlich model was most suitable for the current experiment data, and the amount of adsorbent (GAC) could calculated based on this model.

Serially expanded flap use to treat large hairless scalp lesions

  • Shin, Dongwoo;Kim, Yong Hun;Song, Han Gyeol;Hong, Jong Won
    • 대한두개안면성형외과학회지
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    • 제20권6호
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    • pp.408-411
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    • 2019
  • Hairless scalp areas can occur due to trauma, tumors, or congenital disease. This aesthetically unpleasing condition can lead to psychosocial distress, and thin skin flaps may be prone to scarring. Treating the hairless scalp by simple excision is challenging because of skin tension. Tissue expanders are a good option for hairless scalp resurfacing. However, a single expansion may be inadequate to cover the entire defect. This report describes good results obtained using a serial resurfacing method involving re-expansion of the flap with a tissue expander to treat two patients with large lesions: one due to aplasia cutis congenital and another who underwent dermatofibrosarcoma protuberance resection. The results suggest that scalp resurfacing by serial tissue expansion using a tissue expander can be used for extensive lesions.

교정치료 영역에서 보툴리눔 독소의 적용 (Application of Botulinum toxin in orthodontics)

  • 이종석;김성택
    • 대한치과의사협회지
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    • 제48권12호
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    • pp.889-892
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    • 2010
  • Botulinum toxin type A (BTX-A), a potent neurotoxin that reversibly blocks presynaptic acetylcholine release, has been applied successfully to treat facial spastic conditions such as blepharospasm, strabismus and cervical dystonia. Since the first reported application in dentistry in 1994, BTX-A has been used with great success to used in the orofacial region to help treat masticatory and facial muscle spasm, severe bruxism, facial tics, and hypertrophy of the masticatory muscles. The clinician may be aware of the many courses becoming available and aimed at dentists to start using it in the cosmetic context. This article intends to provide a basic understanding of the many functional uses of the drug in the orofacial region that may be relevant to everyday practice, especially in orthodontic field.

하간(河間)의 "내경(內經)"이론 활용에 대한 연구 (A study on the application of the theory in ${\ulcorner}NAEKYUNG{\lrcorner}$ by Liu Wansu)

  • 민진하;정창현
    • 대한한의학원전학회지
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    • 제18권2호통권29호
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    • pp.102-123
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    • 2005
  • Nowadays people suffer from the excessive stress, emotional disorder, lack of sleepness, overeating of rich fatty diet and irregular schedule. These things accumulate Fire inside humanbody through many ways. Fire, then, brings out many kinds of disease. How to treat Fire is important theme of the medicine. Liu Wansu studied Fire as a important pathogenic factor. He evolved his theory about the relationship between the Xuanfu(玄府)- the sweat, Six Qi, emotional disorder and the climate condition and Fire. He payed great efforts to diagnose accurately and treat the disease on the ground of the theory based on The Yellow Emperors‘ Internal classic.

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육자결(六字訣)로 본 소리치료(治療)에 대한 고찰 (A Study on the Sound Therapy by Six Syllables)

  • 전학수
    • 대한한의정보학회지
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    • 제14권2호
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    • pp.1-9
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    • 2008
  • With the booming complementary medicine as a social trend of well-being, treatment by the sound waves of six kinds of syllables is believed to restore that healthy balance to the body. Sound therapy refers to a range of therapies in which sound is used to treat physical and mental conditions. Healing is done by transmitting beneficial sound to the affected area related to five viscera and six bowels. The healing sound may be produced by a voice. sound wave vibrations are to treat physical and mental conditions. In general, this therapy is based on the theory that all of life vibrates, including people's bodies. When a person's healthy resonant frequency is out of balance, physical and emotional health is affected. When a person's healthy resonant frequency is out of balance, physical and emotional health is affected. This paper focuses on the sound therapy by six syllables of 'hyu', 'huo', 'ho', 'sa', 'chi' and 'hui'.

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고온호기발효공법을 이용한 유기성폐수의 처리 (The Treatment of Organic Wastewater using Thermophilic Oxic Process)

  • 유순주;류재근;서윤수;도삼유평
    • 환경위생공학
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    • 제10권2호
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    • pp.13-22
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    • 1995
  • Most of small- scale livestock facility have difficulties to treat organic wastewater by activated sludge process as distinguished feces and urine. The organic wastewater discharged have characteristics of slurry, high concentration of BOD, 55 etc. This study was performed to estimate suitable condition for the application of packing materials, air flow, pollutant load and so on as important parameter to treat organic wastewater by thermopile oxlc process. As a result obtained at this experiments the most suitable condition for BOD load, air flow indicate 3.0kg · m$^{-3}$ day$^{-1}$,50 ∼ 100L· min$^{-1}$ m$^{-3}$, respectively, and we knew that it was necessary to add waste contained high calories to degrade about 80% of pollutant among waste- water. It showed that plastic material can be used as packing media because it can be provided as inhabitation for microorganism owing to intensity of material and characteristic of keeping moisture.

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