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Kim, Sun-Young,Lee, Byoung-Min,Lee, Yeong-Ju,Kim, Du-Yeong,Jeun, Joon-Pyo,Kang, Phil-Hyun American Scientific Publishers 2016 Journal of nanoscience and nanotechnology Vol.16 No.10
<P>In this study, we investigated an improvement to the properties of nanocrystalline cellulose (NCC) from kraft pulp using electron beam irradiation (EBI). The EBI of the kraft pulp was performed at various doses (25, 50, and 75 kGy) and then hydrolyzed with 55% sulfuric acid at 50 degrees C (preheated) for 20 min. The hydrolysate of kraft pulp was characterized using X-ray diffraction (XRD), particle size distribution, thermogravimetric analysis (TGA), and transmission electron microscopy (TEM). The NCC of pristine kraft pulp was obtained with a broad size distribution (0-700 nm), an average particle size of 220 nm, and a 75.5% crystallinity index after 20 min of acid-hydrolysisat 50 degrees C. However, isolated NCC from 75 kGy irradiated kraft pulp was obtained with a narrow size distribution (0-530 nm), an average particle size of 160 nm, and 83.2% crystallinity after 20 min of acidhydrolysisat 50 degrees C. These results indicate that the size and crystallinity of NCC were easily controlled by adjusting the EBI dose.</P>
화장품 광고에 나타난 베이스메이크업 질감 트렌드분석 - 2006-2013년 국내브랜드를 중심으로 -
김연희 ( Youn-hee Kim ),표민경 ( Min-gyong Pyo ),이경숙 ( Kyoung-sook Lee ),이현숙 ( Hyun-sook Lee ) 한국미용예술경영학회 2013 미용예술경영연구 Vol.7 No.3
With the craze to look younger in the modern society, women express their ego and the desired integrated image of themselves through the usage of base make-up, which determines the texture of skin. The images they aspire to are often influenced by media, such as how female actors and idol stars wear make up, or by the images created by magazines and cosmetics advertisements. Cosmetics-related ads aim to express the brand image in a symbolic and compressed manner, and they function as a communication tool between the company and the consumers. As these advertisements lay out the latest trends, many depend heavily on this particular medium to understand the current style. These media also have a significant impact on how women put on make-up. Thus this dissertation is written in the hope to predict the advertisement trends to follow in the future, while also understanding the trend of base make-up by analyzing the textures of base make-up from a total of 32 advertisements of season make-up from 2006 to 2013, an image collected from 32 ads from the following brand homepages: the two brands with the largest market domination Amore Pacific’s Hera, which uses female models in their 20-30’s, and LG Household and Healthcare Brand, ; Lee Kyung Min’s Vidi Vici, a personal artist brand that has significant influence on the base make-up texture trend; . These images are chosen after in-depth consultations with experts who are qualified with at least a Masters degree in Aesthetics. As a result, it was shown in that the advertisements of Hera and O Hui, the two largest make-up brands in South Korea, well reflected the latest trends of base make-up in their ads, and also helped in understanding the trend of base make-up texture the most. The analysis also revealed that personal make-up artist brands Luna and Vidi Vici do not reflect the current base make-up texture trend in their advertisements, but rather goes beyond the current trend and reflect in their ads what will be the upcoming ones in the future.
자기장에 의해서 f=1/4인 경우 조셉슨접합 배열의 초전도체-부도체 상전이
이훈표,차민철 한양대학교 이학기술연구소 2001 이학기술연구지 Vol.3 No.-
자기장이 있는 조셉슨 접합 배열 모델을 연구하였다. 자기장의 효과를 고려하기 위하여 쩔쩔맴이 있는 XY 모델을 살펴보았다. 몬테칼로 방법을 사용하여 (2+1) 차원의 고전 XY 모델에서 쩔쩔맴이 f=I/4 인 경우를 살펴본 결과, 동역학지수 z= 1.0 과 상관관계거리 임계지수 υ=0.4를 얻었는데, 이는 f=1/2인 경우와는 다른 지수 값이다. We have studied the superconductor-Insulator transition in the ]osepshon-junction arrays with a magnetic field. In order to consider the effect of a magnetic field, we have explored the XY model with frustration. In this work, we study the (2+1)-dimensional classical XY model where frustrantion is f=I/4. Using the Monte Carlo methods, we find quantum dynamical exponent z= 1.0 and the correlation length exponent υ =0.4, which is different from the exponent f=1/2.
안세민,신화우,최광식,이광표,장영수 원광대학교 식품약품안전성연구소 1993 食品藥品安全性硏究 Vol.6 No.-
Hydrotalcite is mainly used as a antacid and adsorbent. It is Well Known that the yield of hydrotalcite produced is greatly affected by the preparation conbition such as the reactant concetration, reaction temperature, reaction time, mole ratio of reactants and grying tepeeature, etc. the purpose of this study is to investigate the optimum preparation condition of hydrotalcite. Arandomived complete block design suggested by G.E.P.Box and K.B. Wilson was appliedfor this purpose. Hydrotalcite was prepared by reacting sodium carbonate. Magnesium oxide and Aluminum sulfate solutions in this study. The optimum preparation condition of hydrotalcite obtained from this study is as follows: 1) The reaction temperature range is 48-63℃ 2) The concentration of reactant solutions is about 20% 3) The optimum mole-ratio (MgO/Al. sulfate) is 7.35-8.1. 4) The reacting time tatge is 10-11 min.. 5) The drying temperature range is 78-82℃ The outcome of D.S.C. indicated a desolvation of hydrotalcite occured at about 98℃ The dehydration of the compound ceased at about 250℃, and the decarboxylation ceased at about 446℃ The physical and chemical properties of hydrotalcite as medicine were studied by use of chemical analysis, bulk volume test and acid consuming capacity measurements.
박종익,조영래,홍진표,이민규,한오수,이명종 대한신경정신의학회 2001 신경정신의학 Vol.40 No.1
저자들은 환청과 망상을 주소로 정신과를 방문한 진행성 핵상 마비 환자를 진단하고 치료하였다. 진행성 핵상 마비는 보행 장해, 치매, 수직성 안구 운동의 장해가 특징적인 증상이며, 아직까지 특별한 치료법은 알려져 있지 않다. 정신과적 증상으로는 인지기능의 장해, 정동 및 행동의 변화, 수면 장해, 정신병적 증상 등이 있으며 정신분열병과 비슷한 증상을 보이는 경우는 극히 드물다고 한다. 본 증례에서는 파킨슨 증상과 정신병적 증상이 비슷한 시기에 발현된 진행성 핵상 마비의 예를 보고하면서 진단적 중요성을 강조하고자 한다. We have experienced a rare case of progressive supranuclear palsy with hallucination and delusion. The common manifestations of progressive supranuclear palsy are gait disturbance, mental change and sign of vertical ophthamoplegia but no efficacious therapy has been known. Neuropsychiatric symptom clusters include cognitive impairment, affective and behavioral changes, sleep disturbance, and psychotic symptoms. Though schizophrenia-like psychosis has been reported but this is certainly rare. Addressing a case of progressive supranuclear palsy, in whom parkisonian symptoms appeared with concurrent psychotic symptoms, we emphasize accurate diagnosis.
일개 대학병원에 내원한 원발성 폐암 환자의 인구학적 및 병리학적 특성
주혜원,강경필,김민근,박민석,임현민,이현경,이성순,이영민,김주인,염호기,최수전,이혁표 인제대학교 2006 仁濟醫學 Vol.27 No.-
Background : Recently, the lung cancer mortality rank first in Korea. The prognosis of lung cancer is not good enough with current treatments and multimodality treatments are required. So we are interested in the characteristics of lung cancer patients for better treatment. Methods : We searched lung cancer patients since 1994. Then we collected the data of primary lung cancer patients about the demographic features, histologic types and diagnotic methods. We divided the total period into 2 haves and specific analysis was tried. Results : 1) Total 850 patients were included. 633 (74.5%) were male and 217 (25.5%) were female. 2) The mean age was 65 ± 11 years old. and the peak age was 7th decades. 3) Squamous cell carcinoma(334/850, 39.3%) was slightly more prevalent than adenocarcinoma(302/850, 35.5%). Conclusion : From these results, we expected that older persons will be diagnosed to have lung cancer and adenocarcinoma will be more dominant histologic type with time.