• 대한치과기공학회지
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• 제6권1호
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• pp.31-86
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• 1984

The educational purpose of a junior college is believed to be to effectively train and produce professional workers equipped with the knowledge and skills required in various technical fields of modern society. Since dental technology takes its share of an important role through the enhancement of people's health and the construction of a whlfare society, the prosthodontia department is imposed with a great responsibility to train highly skilled, responsible dental technicians who will meet the social demands. To attain this goal, those who are in charge of the training and education should place emphasis on the development of better educational programs. In other words, the present curriculum which is lacking in many comprehensive aspects, is not satisfactory to provide the students with the required know-how and qualities. As is known, a currculum is the detailed guidance to the efficient operation of an educational program, and that of dental technology is not an exception. In addition, dental technology requires very detailed programs in training, because it requires both diversified and comprehensive application of serveral different fields. The following are the main points to be taken into consideration in developing an effective curriculum for this department. 1. The curriculum should be gradually expanded so that the fundamental subjects will contain principal theories which can be directly applied to the specified majoring subjects. 2. An effective arrangement of time tables should be provided so that basic practice and experiments can be conducted in direct connection with the leatures on the basic theories. 3. For a creative and up-to-date curriculum to help cope with the problems in achieving the aims of technological development and scientific education, intensive and extensive studies should be done on the curricula developed in the advanced countries. 4. The specific majoring subjects should be rearranged to contain new theories which are beneficial to dental technology. As an institution which is spearheaded for ondustrial-educational cooperation, the Junior collegeis role demands that the department should make every possible effect to cultivate highly-skilled technicisns. The following suggestions are made to help work out an ideal curriculum. 1. The basic theory subjects should be selected with consideration toward closely related majoring subjects. 2. The curriculum should be efficiently operated to effectively relate theories with experiments. 3. Subject importance must be rearranged ; It has been found that the ideal proportion of cultural, elective and required subjects is 20%, 20% and 60% respectively. 4. The credit allotments should be reconsidered: The total credits required for completion should preferably be 80; 16 for the cultural and the elective subjects respectively and 48 for the required subject. 5. A Commissioned education system should be formalized for strengthening industrial educational cooperation. 6. Experiments and practice should be intensified with the support of improved laboratory facilities. 7. The training period should be expanded form the present two years to three of four years, in order to produce more highly qualified technicians.

• 한국전기전자재료학회:학술대회논문집
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• 한국전기전자재료학회 2002년도 추계학술대회 논문집 Vol.15
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• pp.440-443
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• 2002

Present1y the X-Ray diagnosis system is a real condition that is changing by digital ways in it's existent analog ways. This digital radiation detector is divided by the direct method and the indirect method. The indirect method of applied voltage has special qualities that the resolution is low than direct method by diffusion effect that happens. The conversion process ( radiation${\rightarrow}$visible ray${\rightarrow}$electrical signal of two times, has shortcomings that the energy conversion efficiency of electrical signal is low. The direct method has shortcomings that need strong electric fie1d to detect electrical signal efficiently. This research achieved to develop digital detector of the Hybrid method that have form that mixes two ways to supplement shortcoming of direct. indirect method. A studied electrical characteristic by Iodine's Mixture ratio change is added to selenium in the detector which has a multi-layer structure (Oxybromide + a-Se). There are 8 kinds of Manufactured compositions to amorphous selenium Iodine each 30ppm, 100ppm, 200 ppm, 300ppm, 400ppm, 500ppm, 600ppm, 700ppm by a doped photoconductor through a vacuum thermal evaporation method. The phosphor layer is consisted of Oxybromide ($BrO_2$) which uses optical adhesives multi-layer structure. The manufactured compositions calculates and compares Net Charge and signal to noise ratio measuring Photocurrent about Darkcurrent and X-ray. When doped Iodine Mixture ratio is 500ppm to the multi-layer structure (Oxybromide + a-Se), applied voltage of $3V/{\mu}m$, leakage current of compositions $2.61nA/cm^2$ and net charge value by 764pC/$cm^2$/mR then the best result appeared.

• 기록학연구
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• 제63호
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• pp.167-225
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• 2020

'일상생활과 기록'이라는 이름으로 기록실험을 수행했다. 일상에서 사람들 간에 교류와 협력을 증진시키는 데에 효과가 있는 아카이브가 가능하다면 그것은 어떤 계열의 아카이브일 수 있을까, 어떻게 해야 일상생활에 간편하게 자리를 잡을 수 있을까 하는 것이 목적이었다. 그것은 미시적이고 일상적인 기록세계에 대한 탐구였다. 100명의 20대 대학생들과 4개월 동안(2019.9~12) 시행착오를 반복했다. 따로 실험실을 차린 것은 아니었다. 대학에서 정규적으로 개설하는 교과시간을 활용했다. 대학 제도에서 강제되는 권력적 통제가 있었던 것은 사실이지만, 줄거리는 햇볕정책이었다. 인간에게는 자발적이고 긍정적인 태도가 있다. 누구라도 이런 태도를 취하기 시작하면 그 행동을 막기는 쉽지 않다. 정서적 지원을 통해 자발성이 싹트기를 노력했다. 실험은 당연한 것들에 의문을 품고 새로운 것을 찾아보는 시도이다. 멀리서보면 아카이브와 거리가 있어 보일지도 모르겠다. 그러나 직업적 아키비스트의 한 사람으로 기록학적 원리로 통제하면서 수행한 기록시간이었다. 이야기 형식으로 정리해 기록학적 함의를 살펴본다.

• Applied Microscopy
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• 제2권1호
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• pp.39-46
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• 1972

There are many kinds of microscopes suitable for general studies; optical microscopes(OM), conventional transmission electron microscopes (TEM), and scanning electron microscopes(SEM). The optical microscopes and the conventional transmission electron microscopes are very familiar. The images of these microscopes are directly formed on an image plane with one or more image forming lenses. On the other hand, the image of the scanning electron microscope is formed on a fluorescent screen of a cathode ray tube using a scanning system similar to television technique. In this paper, the features and some applications of the scanning electron microscope will be discussed briefly. The recently available scanning electron microscope, combining a resolution of about $200{\AA}$ with great depth of field, is favorable when compared to the replica technique. It avoids the problem of specimen damage and the introduction of artifacts. In addition, it permits the examination of many samples that can not be replicated, and provides a broader range of information. The scanning electron microscope has found application in diverse fields of study including biology, chemistry, materials science, semiconductor technology, and many others. In scanning electron microscopy, the secondary electron method. the backscattererd electron method, and the electromotive force method are most widely used, and the transmitted electron method will become more useful. Change-over of magnification can be easily done by controlling the scanning width of the electron probe. It is possible. to continuously vary the magnification over the range from 100 times to 1.00,000 times without readjustment of focusing. Conclusion: With the development of a scanning. electron microscope, it is now possible to observe almost all-information produced through interactions between substances and electrons in the form of image. When the probe is properly focused on the specimen, changing magnification of specimen orientation does not require any change in focus. This is quite different from the conventional transmission electron microscope. It is worthwhile to note that the typical probe currents of $10^{-10}$ to $10^{-12}\;{\AA}$ are for below the $10^{-5}$ to $10^{-7}\;{\AA}$ of a conventional. transmission microscope. This reduces specimen contamination and specimen damage due to heatings. Outstanding features of the scanning electron microscope include the 'stereoscopic observation of a bulky or fiber specimen in high resolution' and 'observation of potential distribution and electromotive force in semiconductor devices'.

• Applied Biological Chemistry
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• 제20권1호
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• pp.95-100
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• 1977

To get a basic information for improving Korean's pattern of comsuming red pepper and the possibility of its industrial production, consumer's ways of red pepper processing and his present dietary habits were surveyed and the results are follows; (1) Korean's daily consumption of red pepper was on the average 9.2 g on the basis of the whole dried red pepper. (2) The tendency of evading the home drying method was increased; 72.22% in urban community and 50.4% in rural community purchased the dried red pepper in the lump yearly. The household purchasing the fresh red pepper and using the home drying was 27.8% in urban community and 49.6% in rural community, so one third of urban household was still using the home drying method. The case of dependence on tine drying factory was no more than 2.6%. (3) Drying method was mainly sun drying which done on the poor circumstance like as the street side without the proper equipment of drying. Home process of red pepper by housewife was 70.8%, and the old, housekeeper were only 7.3% respectively. (4) The hygienic sense in the drying was rare; 68.8% was not washed and 51.9% of decayed red pepper was eaten. (5) Koreans prefered the strong pungency, deep red color and fine powder form. (6) While the 45.5% of seed was collected by second hand dealer and made use of as resources of edible oil, it was not used effectively due to complexity of its collection system. (7) While 40.1% desired the improvement of red pepper dietary life, 41.1% distrusted the present commercial red pepper powder on the market. From the results above, we conclude the fact many households have still hygienically poor red pepper processed at home, in spite of the red pepper is one of the most important spices in Korea. Considering the growing urban population, reduction of unemployed labor due to the increasing nuclear family and hygienic problems caused by the serious pollution, the improvement of red pepper processing method is urgently required. And it is believed that red pepper has a good prospect to be processed on the industrial scale in Korea.

• 트랜스-
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• 제2권
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• pp.161-190
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• 2017

시대가 발전함에 따라 예술의 창조적 변화는 다양해지는 요구들을 수용하려는 시도들로 이루어지는데, 이러한 시도들은 예술의 장르적 벽을 허물고 다양한 요소들이 무용 작품 안에서 활용된 오브제의 형태로 표현되고 오늘날 오브제 특성이 표현되지 않은 작품은 찾아보기 힘들다. 본 연구는 오브제를 총체적인 관점에서 하나의 체계로 이해하고자 하며 오브제의 미학적 논의 과정을 고찰함으로써 오브제의 표현과 특성이 어떻게 무용 작품 안에서 어떠한 영향을 미치고 어떠한 역할을 히는지 분석해보고자 한다. 또한 오브제들이 무용 작품 안에서 작품을 어떻게 자극하고 활성화시키는지 표현 특성을 연구함으로써, 본 연구가 무용예술 작품이 발전할 수 있는 중요한 역할을 할 것이라고 본다. 윌리엄 포사이드(William Forsythe) 작품 중 오브제의 표현 특성이 명백하게 드러나는 작품 (2006), (2009), (2009)를 선정하였다. 작품에 나타난 오브제 표현 특성은 다양한 매체의 활용과 신체 행위, 비물질적 요소까지 활용하면서도 무용의 본질은 잃지 않고 자신만의 독창성을 극대화하였으며 무용 공연 표현의 확장을 가져왔다. 그 결과 기존의 한계를 극복할 수 있는 다양한 방법과 표현의 확장을 가져다주는 이론을 제공하고 관객과의 거리를 좁히며 관객과의 새로운 소통 방법을 제시하고 있다.

• 대한조선학회논문집
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• 제28권1호
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• pp.38-52
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• 1991

자유표면하에서 움직이는 임의의 형상의 3차원 물체로 인한 비선형 유체력을 준 Lagrangian 방법을 사용하여 해석하였다. 경계치 문제는 경계 적분 방법(Boundary Integral Method)을 이용하여 해결하였으며, 물체와 자유 표면의 형상은 곡면 Panel로 표현하였다. 이들 표면은 hi-cubic B-spline 방법을 사용하여 유한개의 작은 표면 요소로 나뉘어지게 되며, 또한 \phi와 (equation omitted) 표면 요소상에서 bi-linear하다고 가정한다. 특이점에 의한 유기 포텐시얼의 계산시 1/R에 비례하는 부분은 제거하고 해석적으로 처리하였다. 물체로부터 멀리 떨어진 곳에서의 유체 유통은 좌표계의 원점에 위치한 Dipole로 표현하였으며, Time Stepping시 Runge-Kutta의 4차 방법을 사용하였다. 3차원인 경우에 대한 적분 방정식과 포텐시얼의 시간 미분간에 대한 경계 조건이 유도되었으며, 이러한 식들을 사용하여 자유표면의 형상과 물체의 운동을 동시에 계산하였다. 대진폭을 가지고 규칙적으로 진동하는 물체에 작용하는 힘과 이때의 자유 표면 형상을 계산하고 기 발표된 자료와 비교하여 보았으며, 자유표면 근처에서 운동하는 물체에 작용하는 비선형 효과를 관찰하였다.

• 대한기관식도과학회:학술대회논문집
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• 대한기관식도과학회 1972년도 춘계종합 학술대회 초록집
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• pp.17.1-17
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• 1972

편도적출은 우리 이비인후과 임상에서 평소에 다반사로 행해지는 수술의 하나이라 하겠다. 수술술기의 개량, 마취의 발달과 더불어 각종 항생제의 발견등은 편도 적출술에 따르는 여러 가지 합병증을 감소시켰지만, 이중 수술중 또는 수술후에 왕왕 당하는 출혈문제는 가장 흔한 합병증의 하나이며 술자에게는 골치거리의 하나이기도 하여 아직껏 국내외에서 그 보고가 끊어지지 않고 있다. 특히 본증례에서와 같이 본태성 질환으로 인한 출혈의 해결에 있어서는 더욱 복잡곤란한 문제가 많을 것으로 생각된다. 혈우병은 1950년대에 이르러 각 Factor가 발견되어 현재는 혈우병 A.B.C.로 나뉘고 있다. 본증례는 11세의 남아로서 편도 척출술전에는 혈우병의 유무가 인지 못되었던 예로서 수술후 수술창에서 계속되는 출혈로 혈액응고장애를 가진 질환이라고 생각되어 여러 가지 검사결과 P.T.C의 결여로 오는 혈우병 B란 진단을 얻었기에 교훈적이고 귀중한 체험을 얻었다고 생각되어 보고하는 바이다. 환자는 수차의 수혈과 비인강탐폰 등의 방법으로 겨우 지혈되어 수술 20일만에 수술창이 치유되어 퇴원하였다.

• 약학회지
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• 제41권1호
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• pp.60-73
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• 1997

In order to design a 24 hr sustained release preparation of sulindac for oral administration, fast release pellet (FR), slow release pellet (SR) and two combined formulation (1 : 1 and 1 : 2) were prepared. The pharmacokinetic effect of such preparations has been evaluated using rabbits as a suitable in vivo model, and tested in man. Dose determination was carried out using curve fitting according to RSTPJP II program. In bioavailability test using rabbit, AUCs of sulindac in a few designed formulations were similar to each other. $C_{max}$- of RF and SR were 1.8 times and 1.2 times higher, respectively, compared to that of combined formulation (FR:SR=1:1). While plasma concentration of FR and SR decreased rapidly, that of combined formulation (FR:SR 1:1) lasted at the level close to $C_{max}$ for 24 hrs. Plasma concentration of sulfide form from the combined pellet(FR:SR=1:1) lasted for 24 hrs, and its AUC value was 1.4-fold, 2.7-fold. and 1.2-fold greater than FR pellet, SR pellet and combined pellet (FR:SR 1 : 2). Thus, the combined pellet of 1:1 ratio was found to be the most effective for oral sustained release formulation. Bioavailability test in human showed that AUC of sulfide from TSRP (1 : 1) was approximately 1.5 times greater than total AUC of Immbaron$^{\circledR}$ administered twice in a day. While $T_{max}$ of sulfide from lmmbaron$^{\circledR}$ was 4.33 +/- 1.37 hr (lst administration) and 3.33 ${pm}$ 0.82 hr (2nd administration), respectively, that of sulfide from TSRP increased to 7.17 ${pm}$ 2.86 hr. Plasma concentration of sulfide from TSRP was sustained at more, than 1.0 ${\mu}g{\cdot}$hr/ml until 24 hrs after one dose administration. In addition, TSRP may decrease local adverse reaction in the stomach, since plasma concentration of sulfide from the combined pellet was low within 2hrs in the stomach. In conclusion, it is suggested that TSRP formulation may be effective for oral 24 hr sustained release formulation of sulindac dosing 300 ~ 350mg once a day.

• 한국환경생태학회지
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• 제32권2호
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• pp.176-184
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• 2018

본 연구는 생물다양성이 매우 중요하게 여겨지고 있는 백두대간 일대인 단목령-구룡령 구간의 산림식생을 보다 더 생태적이고 체계적인 보전 및 관리 계획 수립을 위한 기초자료를 제공하고자 수행하였다. 총 조사구 142개소에 대해 Z.-M. 학파의 식물사회학적인 방법을 사용하였고 식생조사 및 입지 환경 특성을 조사하였다. 산림식생의 유형은 1개 군락군, 2개 군락, 4개 군, 4개 소군의 단위체계를 가진 것으로 분석되었는데 상재도급 V형에 해당하는 신갈나무와 당단풍나무는 대체적으로 향존중으로 나타났으며, 조사 지역의 산림생태계 관리 계획에 있어 중점관리대상종이 될 것으로 판단되었다. 그리고 종다양성에 대한 결과를 살펴보면 VT3형에서 우점종들이 균일하게 분포되어 있었고 VT4형의 종들은 다양하게 분포하고 있었을 뿐만 아니라 종들이 제일 풍부하게 나타났다. 또한, 단목령-구룡령 구간에서는 희귀식물이 다소 분포하였는데 멸종위기종인 벌깨풀과 위기종인 구실바위취, 취약종인 백작약, 두메대극, 금강초롱꽃, 어리병풍, 약관심종인 등칡, 도깨비부채, 참배암차즈기, 미치광이풀, 병풍쌈 등 총 24종의 희귀식물이 나타났다.