‘나혜석 거리’ 근대이미지 조성에 관한 연구

김정동,이기욱,조홍석,한수형,구명화 목원대학교 건축도시연구센터 2003 建築·都市環境硏究 Vol.11 No.-

As the first female artist of Western painting in the modern times, Hey-seok Na is the historical figure in Suwon, who went ahead of the times. Suwon City established the street of Hey-seok Na to commemorate her, in Ingye-dong, Paldal-gu. Street-establishment business for the historical figures is one of the factors with the biggest effects for the creation of local cultures. It has many merits such as the offer of fine view of city and resting area as well as giving the pride and educational effects to its residents. However, there are memorial hall or exhibitional hall not established in the street of Hey-seok Na, with the lacks in attractions and convenience facilities. With a poor decorative arrangement in the vicinity of the street, the meaning of street establishment and the image of Hey-seok Na are not well-delivered. Accordingly, the initial plan to make the street with citizens has not been well carried out. This research classified and analyzed the achievements and thoughts of Hey-seok Na, to embody it as the image and the concept of design to be expressed for the street was picked out. As a result, the image of Hey-seok Na, as the historical figure was set at modern times. the existing facilities in the street of Hey-seok Na was analyzed, centering on the time-factor of the modern times, deciding the spacial goal pursued by the street along with things to be improved.

팜유로 튀긴 유과의 저장 중 품질 변화

이유석,정해옥,이종욱 한국조리과학회 2003 한국식품조리과학회지 Vol.19 No.1

콩기름과 팜유로 튀긴 유과를 20℃와 50℃에 저장하면서 분석한 결과 콩기름으로 튀겨 50℃에 저장한 유과의 산가는 2주에는 0.78mg/g에서 4주에 9.35mg/g으로 급격한 증가를 하였으나 팜유로 튀긴 유과는 저장 6주까지 변화가 없다가 저장 8주에서 2.08mg/g을 나타내었다. 과산화물가의 경우 콩기름으로 튀긴 유과를 50℃에서 저장하였을 때 저장 4주까지 급격한 증가를 보이다 4주 이후 감소하였다. 저장 기간에 따른 지방산의 변화는 20℃ 저장의 경우 저장 전과 큰 차이를 보이지 않았지만 50℃ 저장의 경우 콩기름과 팜유 모두 palmitic acid, stearic acid 및 oleic acid는 저장기간이 경과함에 따라 증가하였고 linoleic acid와 linolenic acid는 감소하였다. 또한 관능검사 결과 콩기름으로 튀긴 유과는 4주 이후 이취미가 발생하기 시작하여, 7주가 지난 후에는 이취미가 보다 강하게 발생하였지만 팜유로 튀긴 유과는 4주째에 이취미가 약간 발생하였으나, 그 정도가 미미하였고, 8주째에도 이취미가 강하게 발생하지 않았다. 따라서' 유과 튀김시 콩기름을 팜유로 대체한다면 종래 방법으로 제조된 유과에 비해 저장 기간이 증가할 것으로 사료된다. Yukwa is a popular Korean traditional fried rice snack. The high fat content and porous structure of Yukwa cause it to become rancid rapidly. For extending the shelf-life of Yukwa, the Bandegi was fried with palm oil and soybean oil. The stability of Yukwa in lipid oxidation was determined by acid value(AV), peroxide value(POV), composition of fatty acid and sensory evaluation during & weeks of storage at 20℃ and 50℃. As the storage time increased, the AVs of soybean oil and palm oil during storage at 50℃ were increased up to 42.64 and 2.09 mg/g, respectively. The POV of soybean oil during storage at 50℃ was increased up to 4 weeks and then decreased. And as the storage time increased, the contents of stearic and oleic acid were increased, while linoleic and linoleic acid were decreased.

Na/Si(111)계의 초기 산화과정에 대한 XPS 연구

이득진,안기석,황찬국,장현덕,박종윤 성균관대학교 기초과학연구소 1995 論文集 Vol.46 No.1

X-선광 전자분광법을 이용하여 Na의 흡착에 의해 형성되는 Si(111)7×7-Na과 Si(111)3×1-Na 표면의 초기 산화과정에 대하여 연구하였다. Si(111)7×7-Na 표면은 깨끗한 Si(111)7×7 표면에 비하여 산화가 더욱 잘 일어나지만, Si(111)3×1-Na의 경우 산소와 거의 반응하지 않음을 알 수 있다. 또한 Si(111)7×7 표면과는 달리, Si(111)7×7-Na 표면에 1 ML의 Na를 흡착시키고 산소를 100L 노출한 경우 0 ls 내각 스펙트럼에 두 종류의 산소성분이 존재를 함을 알 수 있다. 산소의 노출량이 증가함에 따라 낮은 운동에너지 성분의 세기는 계속 증가를 하지만, 높은 운동에너지 쪽의 성분은 초기에 포화되었다. 이러한 0 ls 내각 스펙트럼의 변화와 Na KLL Auger peak intensity 증가로부터 Si(111) 7×7-Na 표면에 흡착되는 산소는 Si-0-Si, 그리고 Si-0-Na 두가지의 결합형태로 존재함을 예상 할 수 있다. 또한, Si(111)7×7-Na 표면에 주입되는 산소 노출량이 증가함에 따른 Na KLL Auger peak intensity가 증가하는 현상에 대하여 논의하였다. The initial oxidation of Si(111)7×7-Na and Si(111)3×1-Na surfaces have been studied by means of X-ray photoelectron spectroscopy(XPS). The Si oxidation rate of Si(111)7×7-Na surface was much enhanced more than that of the clean Si(111)7×7, but the Si(111)3×1-Na surface hardly reacted with oxygen. It shows that 0 1s peak of the Si(111)7×7-Na surfaces for 100L O_2 exposure consists of two components, coming from a different oxygen bonding configuration. From the change in intensity of two component of 0 ls and the increase of Na KLL peak intensity with increasing O_2 exposure, it is found that one component originates from Si-0-Si bonding at the lower kinectic energy and the other component comes from the Si-0-Na bonding at higher kinectic energy. Also, we have discussed a possible interpretation for the abnormally increase of Na KLL peak intensity.

유색미를 첨가하여 제조한 유과의 품질

이유석,정해옥,이종욱 한국조리과학회 2002 한국식품조리과학회지 Vol.18 No.5

Yukwa was prepared with the glutinous rice by the addition of different ratio of pigmented rice (0, 3, 5, 7, 10%) and were steeped for 7 days at 20℃. No significant differences were found among the samples when the textural properties of Yukwa dough and base were measured using a texture analyzer. But the crispness was decreased with the increase of the addition level of pigmented rice. The redness (a value) and yellowness (b value) of the dough and Yukwa base were increased and the lightness (L value) was decreased as the addition levels increased. The expansion rate of Yukwa was decreased with the increase of addition levels. The overall acceptability of Yukwa prepared with the addition of 7% pigmented rice was the best in the sensory evaluation.

전력계통의 안정화를 위한 퍼지제어의 적용

정형환,주석민,이광민 東亞大學校 大學院 1994 大學院論文集 Vol.19 No.-

This paper proposed a regulation technique of scale factors on fuzzy controller for power system stabilization. These scale factors are regulated by a given exponential function with performance index variables. Simulation results showed that the proposrd fuzzy control technique was more powerful than conventional ones in faces of usefulness and robustness.

관상동맥질환에서 Tc-99m Methoxyisobutyl Isonitrile (MIBI) Myocardial SPECT의 이용 : Dipyridamole 심근부하 SPECT와 관상동맥조영술과의 비교 A Comparison between Coronary Angiography and Tc-99m-MIBI Myocardial SPECT

이강욱,전은석,박종훈,신영태,노흥규 충남대학교 의과대학 지역사회의학연구소 1993 충남의대잡지 Vol.20 No.2

In order to evaluate clinical utilities of Tc-99m MIBI dipyridamole stress myocardial SPECT in patients with coronary artery disease (CAD), we compaired tomographic and polar map images of Tc-99m MIBI myocardial SPECT with the results of coronary angiography in 25 patients with CAD (myocardial infarction 13,angina pectoris 12) in Chungnam National University Hospital from Oct. 1991 to Oct 1993. Percutaneous transcoronary angioplasty (PTCA) was done in three patients of 25 CAD patients and follow up SPECT studies were done in same three patients within 2 months after PTCA. The results were as follows : 1. Mean age of patients was 57.4 years. Man was 2.7 times more than woman. 2. Sensitivity and specificity of Tc-99m MIBI myocardial SPECT for the detection of coronary artery stenosis in patients with myocardial infarction were 92.7 % anf 85 %, respectively. 3. Sensitivity and specificity of Tc-99m MIBI myocardial SPECT for the detection of coronary artery stenosis in patients with angina pectoris were 100 % and 67 %, respectively. 4. After PTCA size of perfusion defects in stress SPELT images was decreased in all three patients . With the results above,we thought that Tc-99m MIBI myocardial SPECT is useful noninvasive method to detect stenosed coronary artery in patients with CAD and it can be used as a method to evaluate the result of PTCA.

海成堆積 粘土의 壓縮指數에 관한 特性硏究

李鍾珪,金錫煥 단국대학교 1977 論文集 Vol.11 No.-

It is generalized that the compression index of soft soil is the main factor to calculate the settlement. To determine the factor, we must take consolidation test in the laboratory, but the test is very difficult because of sampling, disturbance, etc. An account of this reason, many reporter have studed to identify the relationship between the compression index and the other soil properties except consolidation test method. The investigations described in this paper are to analyze the correlations between the compression index and the other soil properties for the Korean marine dsposit clay and to compare the previous reports. The analyzed results for 538 undisturbed samples have shown that the compression index is related to the liquid limit, in-place void ratio, and the product of specific gravity and natural moisture content, and its range is more wide than the previous reports.

One chip SCF 실현을 위한 Op Amp 설계

李種寅,金煥溶,金石縞 군산대학교 1989 論文集 Vol.16 No.-

As IC technology has been developed, SCF(Switched Capacitor filter)is in the limelight by means of filter circuit which can fabricate L-SI and nowadays it has integrated LSI circuits by using MOS technology.But as SCF consists of MOS switches, capacitors and op amps, it is clear that the ability of filter performance depend on the general characteristics of op amps. In this paper, we have tried to design CMOS circuits for YLSI and also presented the simplified op amp design method with ±5V power source.After an example about SCF op amp design was presented, its characteristics are simulated by SPICE 2G.Moreover, this design method would be used in general CMOS op amp design.

Skyradiometer를 이용한 공주지역의 에어러솔의 광학적 특성

곽종흠,서명석,이태희,곽서연 公州大學校 基礎科學硏究所 2004 自然科學硏究 Vol.11 No.-

본 연구에서는 공주대학교 자연대 옥상에 설치된 분광복사측정기의 일종인 Skyradiometer로 측정된 직달 및 산란 일사량을 이용하여 간접적으로 공주지역의 에어러솔의 광학적 특성을 분석하였다. 분석기간은 2004년 1월부터 11월까지이며 에어러솔의 광학적 특성의 분석에 활용된 알고리즘은 Nakajima et al.(1996)이 개발한 Skyrad.pack.3이다. 주요 분석요소는 에어러솔의 광학두께(AOT), 단일 산란비율(SSA), 옹그스토롬 지수(α) 및 에어러솔의 크기별 분포이며 분석결과의 질을 높이기 위하여 초기 관측 자료의 품질검사를 수행하였다. 공주지역의 11개월 평균 AOT, α 및 SSA는 각가 0.6, 1.1, 그리고 0.9이며 계절 및 기상현상에 따라 큰 시간변동을 보이고 있다. 크기별 입자분포에서는 미세입자와 조대입자에서 최대치가 나타나는 바이 모달 형태를 보이고 있으며 황사(Asian dust) 기간인 봄철에는 조대입자의 총 부피가 크게 증가하였다. 이러한 현상은 봄철동안에 AOT와 SSA가 각각 크게 증가하고 감소하는 점에서도 확인되고 있다. 또한 공주지역의 에어러솔은 풍향에 큰 영향을 받지 않는 것으로 나타나고 있다. We investigate the optical properties of aerosols over Gongju by indirect method using the ground measurement, Skyradiometer. The analysis period is from January to November, 2004. Skyrad.pack.3 is used to estimate the optical properties, such as the aerosol optical thickness(AOT), single scattering albedo(SSA), Angstrom exponent(α) and size distribution, of aerosols from the ground measured radiance data. And quality control process is applied to the raw data to improve the quality of analysis results. The 11-month average of AOT, α and SSA are 0.6, 1.1, and 0.9 respectively. The averaged volume spectra of aerosols show a bi-modal distribution, first peak at fine mode and second peak at coarse mode. Asian dust events clearly increase the AOT and coarse particle, however it decrease the SSA. The effect of wind direction on the optical properties of aerosols over Gonju is not manifest.

상악 측절치의 치내치에 대한 증례보고 : REPORT OF 2 CASES

윤석희,이재천,김영재,장기택,한세현,김종철 大韓小兒齒科學會 2004 大韓小兒齒科學會誌 Vol.31 No.3

치내치(dens invaginatus)는 치아 발생 과정 중 경조직이 석회화되기 전에 법랑질 상피가 함입되어 생기는 치아 기형이다. 치내치는 함입된 정도에 따라다양한 형태학적 변이를 보이는데 이러한 기형은 미생물이 침입할 수 있는 통로가 될 수 있어 치수조직의 괴사와 치근단 농양 또는 치은 농양의 원인이 된다. 이러한 경우 근고나의 복잡한 해부학적 형태 때문에 근관 치료가 매우 어렵다. 본 증례는 상악 좌측 측절치의 동통을 주소로 내원한 두 명의 환아들에 관한 것이다. 첫 번째 증례는 수산화 칼슘제재를 이용한 근관치료를 시행하여 양호한 결과를 얻었고 두 번째 증례는 치아를 발거하였다. 발거된 치아는 미세전산화 단층촬영을 이용하여 해부학적 형태를 살펴보았기에 보고하는 바이다. Dens invaginatus is a malformation of tooth resulting from an infolding of the enamel epithelium during tooth development. This malformation shows a broad spectrum of morphologic variations. This invagination frequently allows the entry of irritants and microorganism, which usually lead to necrosis of the adjacent pulp tissue and then to periapical or periodontal abscess. Root canal treatment of such tooth is often difficult because of the unusual form and complicated pulpal space. This article reports 2 cases of dens invaginatus in maxillary lateral incisors. The first case was successfully treated with Ca(OH)₂. In the second case, involved tooth was extracted and this extracted tooth was observed using the micro-computed tomography.