• 대한기계학회논문집A
• /
• 제37권4호
• /
• pp.467-473
• /
• 2013

본 연구에서는 SU-8 박막의 마이크로시스템으로의 트라이볼로지적 응용을 목적으로 하여, 원자간 힘 현미경(AFM) 과 콜로이드 프로브를 이용한 실험 및 유한요소해석 기법을 이용하여 SU-8 코팅층의 두께에 따른 트라이볼로지적 특성을 고찰하였다. SU-8 시편은 스핀 코팅기법을 이용하여 두께를 다르게하여 제작하였다. 실험결과 코팅두께가 증가함에 따라 마찰력과 점착력이 감소하여 박막두께에 따른 차이가 존재함을 알 수 있었고, SU-8 표면이 Si 표면에서보다 더 낮은 점착력과 마찰력을 보여주었다. 또한, 시뮬레이션을 통해 두께별로 박막 파손을 유발시키는 임계하중(압력)이 존재하며, 본 연구에서의 200~800 nm 두께범위에서는 1.2~1.8 GPa 로 측정되었다.

• 대한한의정보학회지
• /
• 제15권1호
• /
• pp.11-55
• /
• 2009

The nan gyeong(難經) is another name of hwang je pal sib-il nan gyeong(黃帝八十一難經) which is book of traditional oriental medicine that contains many medical theories. This thesis studies 'su-hyeol'(兪穴) that is recorded in the books. 1. '62th nan' contains that um-gyeong(陰經) has five su-hyeols and yang-gyeong(陽經) has six su-hyeols. 2. '63th nan' contains why Jeong-hyeol(井穴) starts at first among the five su-hyeols. 3. '64th nan' appears su-hyeol's character and explains it's reason. 4. '65th nan' discusses that some divisions of su-hyeol's character correspond with the climate. 5. '66th nan' explains the importance of 'Won-hyeol(原穴). 6. '67th nan' appears the eum-yang's character of 'Mo-hyeol'(募穴), eum-yang's character of 'Bae-suhyeol'(背兪穴), it's situation and it's pathological significance. 7. '68th nan' explains the stream of 'su-hyeol' in twelve meridians and it's symptoms of a disease. The Nan gyeong(難經) has the difficulty in it's contents and many scholars take charge of that differently. In that reason, each argument is subjectly. This thesis unites scholar's arguments of 'Su-hyeol'(兪穴) as many as possibly and investigates their differences objectively.

• 한국항해항만학회:학술대회논문집
• /
• 한국항해항만학회 2004년도 Asia Navigation Conference
• /
• pp.203-207
• /
• 2004

Yangtze River channel is in natural condition for a long time. There are more to be done in grade of navigation and transport. Since 1980's the rate of vessel in JiangSu channel is going up every year, especially for ocean vessels. Meanwhile, the serious factors such as no sailing at night have become a battlement causing the long period for vessels, high cost for shipowners, lower competitiveness for JiangSu ports along the Yangtze River. It also can not meet the port logistic development. After the Ships' Routeing in JiangSu has been carried out. It has improved the safety of navigation in JiangSu area and reduced the risk of pollution or other damage to the marine environment caused by ships colliding or anchoring in or near JiangSu channel. By analyzing, compareing, calculating and model forecasting. The main focus of the paper is put on the study the development of port, channel in JiangSu and efficiency in many fields. Navigation efficiency of the sailing at night; Safety efficiency of reducing the risk by ships; More efficiency of the higher cargo volumes of the other ports in Yangtze River with the increase cargo volume of JiangSu ports along Yangtze River. The purpose of this study is: To get the social and economical efficiency after the Ships' Routeing in JiangSu has been carried out. Also the role of the Ships' Routeing of JiangSu in the development of Port and Channel.

• 품질경영학회지
• /
• 제26권1호
• /
• pp.1-10
• /
• 1998

Su, pp.ier quality plays a major role in the evaluation of su, pp.iers, making it very necessary to develop a proper quality measure useful in selecting su, pp.iers that is able to meet quality specification of the customer. In this paper, we present a measure of the overall quality performance which is a weighted geometric mean of the process capability indices of the quality characteristics of a su, pp.ier. This measure can be used both as a measure of su, pp.ier selection for the customer and as a measure for the self-analysis of the quality performance for the su, pp.ier.

• 대한한방내과학회지
• /
• 제12권2호
• /
• pp.44-51
• /
• 1991

This study has been carried out to investigate the cause and symptom of coughing made of foods and wine by referring to 43 literatures. The results were obtained as follows; 1. The factor causing Sik Juk Su ( 食積嗽 ) is Dam Yeum ( 痰飮 ) made from mistaking meals. 2. Excepted Sik Juk Su ( 食積嗽 ), Coughing made of foods and wine are Bi Hae ( 脾咳 ), Uey Hae ( 胃咳 ), Dam Su ( 痰嗽 ). Ju Su ( 酒嗽 ). Han Su (寒嗽). 3. The symptom of Sik Juk Su ( 食積嗽 ) is as follows. pale-looking cough in early morning pain of right sub-ribs body tired low appetite body fever vomitting acid 4. Excepted Sik Juk Su ( 食積嗽 ), the symptom of Coughing made of foods and wine are simulanted of Sik Juk Su ( 食積嗽 ).

• 전자공학회논문지
• /
• 제52권7호
• /
• pp.33-39
• /
• 2015

본 연구에서는 SU-8을 절연층으로 사용해 솔루션 공정을 바탕으로 하여 Indium Zinc Oxide(IZO) thin film transistor(TFT)의 안정성을 향상에 대해 연구하였다. 매우 점성이 강하며 negative lithography 용으로 사용되는 SU-8은 기계적, 화학적으로 높은 안정도를 가진다. 그리고 이 SU-8을 사용해 TFT층의 위에 스핀코팅을 사용해 절연막 층을 쌓고 photo lithography를 이용해 patterning을 하였다. SU-8층에 의한 positive bias stress(PBS)에 대한 전기적 특성 향상의 이유를 연구하기 위해 TFT에 X-ray photoelectron spectroscopy(XPS), Fourier transform infrared spectroscopy(FTIR) 분석을 시행하였다. SU-8을 절연층으로 한 TFT는 좋은 전기적 특성을 보였으며, 전류점멸비, 전자이동도, 문턱전압, subthreshold swing이 각각 $10^6$, $6.43cm^2/V{\cdot}s$, 7.1V, 0.88V/dec로 측정되었다. 그리고 3600초 동안 PBS를 가할 시 ${\Delta}V_{th}$는 3.6V로 측정되었다. 그러나 SU-8 층이 없는 경우 ${\Delta}V_{th}$는 7.7V 였다. XPS와 FTIR을 분석한 결과, SU-8 절연층이 TFT의 산소의 흡/탈착을 차단하는 특성에 의해 PBS에 강한 특성을 나타나게 함을 확인하였다.

• 생명과학회지
• /
• 제14권1호
• /
• pp.45-50
• /
• 2004

A. nidulans의 색소결핍 억제돌연변이주(Suppressor mutant of the null pigmentation; SU-NPG)의 세포벽 구조가 색소형성 및 균사분지에 미치는 영향을 조사하여 다음의 결과를 얻었다. SEM으로 세포 표면구조를 관찰한 결과, 완전배지에서 배양된 SU-NPG의 분생포자벽은 최외각 층이 6일 째부터 박리되었으며, 균사생장이 저조하였다 TEM으로 관찰한 결과, 균사 세포벽은 매우 두꺼워졌다. 이러한 전자현미경관찰 결과는 이들 돌연변이주의 세포벽 구조가 NPG 및 야생형의 그것과는 다르다는 것을 시사한다. 균사에 탄수화물 염색을 한 후, 세포화학적 미세구조를 관찰한 결과, 분생포자벽은 C1, C2, C3와 C4 층으로 되어 있었고, 균사 세포벽은 H1, H2, H3와 H4층으로 되어 있었다. 이러한 C3층과 H3층은 세포분화 시 색소형성 및 균사 분지형성에 필수적인 세포벽 구조임 을 시사한다. SU-NPG는 FGSC4에서와는 다르게 비정상적인 균사생장을 하였지만, 색소결핍 돌연변이를 억제하는데, 이는 SU-NPG의 균사 세포벽에는 H3층이 형성되었으며, 세포벽 형성과정은 정상적으로 진행되기 때문으로 사료된다.

• 대한한방내과학회지
• /
• 제30권3호
• /
• pp.550-557
• /
• 2009

Objectives : The purpose of this study was to investigate the possibility of Bi-Su as a pattern identification (PI) index in stroke patients. Methods : The subjects were 424 hospitalized stroke patients within 1 month from onset and diagnosed with the same PI subtypes (dampness & phlegm, qi deficiency, fire & heat, eum deficiency, and blood stasis) by agreement of two clinical experts. Bi-Su type is a kind of body shape (Bi : fat, Su : lean). Bi-Su type and degree (Bi-Su score) were decided by clinical expert. Body mass index (BMI) and waist-hip ratio (WHR) were used as an obesity index. Correlation analysis between Bi-Su score and obesity index (Spearman) and variance analysis for Bi-Su score, BMI, and WHR among PI subtypes (ANOVA) and sex were carried out. Results : While there was partial correlation between Bi-Su type and BMI($r^2$=0.634, p<0.001), the distribution of the BMI group based on the Bi-Su group showed the broadest range. The Bi-Su score in the dampness & phlegm group was higher than in the other groups (p<0.001). BMI in the dampness & phlegm groups was also higher but the BMI differences among PI subtypes was low (p=0.002). The Bi-Su score in the dampness & phlegm group was similar in both sexes, although the hand score in the eum deficiency group was the lowest, especially in males. Conclusions : Although BMI is not an objective enough tool for evaluating Bi-Su type, Bi-Su type is more appropriate than BMI as PI index. Therefore Bi-Su type could be used as one of the PI indices for dampness & phlegm or eum deficiency group in stroke patients.

• Asian-Australasian Journal of Animal Sciences
• /
• 제20권3호
• /
• pp.385-392
• /
• 2007

A glucose clamp technique was used to compare dietary starch (ST), starch plus sucrose (ST+SU) and sucrose (SU) with regard to the effect on tissue responsiveness and sensitivity to insulin in intact adult male goats. The goats were fed diets containing 1.2 times of ME and CP for maintenance requirements twice daily for 21 d. Of the energy intake, 30% was offered with ST, ST+SU or SU for the respective diets, and 70% as alfalfa hay, ground corn and ground soybean meal at the respective weight ratio of 1, 1, and 0.3 for all diets. Tissue responsiveness and sensitivity to insulin were evaluated using a hyperinsulinemic euglycemic clamp technique with four levels of insulin infusion beyond 13 h after feeding. The concentrations of plasma metabolites and insulin were also determined at 3, 6 and 13 h after feeding to evaluate the effects of different carbohydrates on metabolic states in the body. Plasma glucose concentration was higher (p = 0.01) for SU diet than for ST and ST+SU diets. Increasing SU intake decreased (p<0.01) plasma acetate concentration across the time. At 3 h but not 6 and 13 h after feeding, high lactate (p = 0.01), and non-significant high propionate (p = 0.14) and low urea nitrogen (p = 0.19) concentrations were observed in plasma on SU compared with ST and ST+SU diets. Plasma insulin concentration was not different (p = 0.44) between ST and SU fed animals. In the glucose clamp experiment, considering the effects on the maximal glucose infusion rate (tissue responsiveness to insulin, p = 0.54) and the plasma insulin concentration at half-maximal glucose infusion rate (insulin sensitivity, p = 0.54), SU was not different from ST. It is concluded that SU may not be greatly different from ST with regard to the effect on tissue responsiveness and sensitivity to insulin in adult goats when fed twice daily as part of a high-concentrate diet. The possible greater effects of SU on plasma metabolites concentrations at 3 h than at 6 and 13 h after feeding suggest that a lack of persistency of SU effects during the postfeeding period may be associated with the poor response to SU in insulin action.

• 한국학교수학회논문집
• /
• 제15권1호
• /
• pp.155-169
• /
• 2012

본 연구는 최석정이 제시한 지수용육도와 지수귀문도의 수학사 탐구형 스토리텔링을 위한 소재로서의 가능성을 탐색하고 있다. 학생들은 최석정이 제시한 지수용육도와 지수귀문도의 해로부터, 기댓값을 마법수로 택했고, 서로 보수가 되는 두 수의 쌍을 이용했고, 다른 쌍의 배열에 영향을 미치지 않는 독립된 네 쌍이 있고, 보수가 되는 두 수를 바꾸어 놓아도 역시 해가 된다는 특징을 탐구할 수 있다. 다음으로 학생들은 지수용육도의 해를 구하는 것은 특정한 조건을 만족하는 6개의 수를 찾는 것으로, 그리고 지수귀문도의 해를 찾는 것은 특정한 조건을 만족하는 11개의 수를 찾는 것으로 바꾸어 탐구할 수 있다. 또한 학생들은 이 전략을 통해 많은 시행착오를 겪지 않아도 최석정 스타일의 해를 나름대로 다양하게 구할 수 있다는 것을 알 수 있다.