반투과 박막의 광정수 측정

裵世煥,成商基,秦源培 東亞大學校 1981 東亞論叢 Vol.18 No.1

The determination of the absorption of very weakly absorbing thin film systems is a difficult problem. Shamir-Graff have introduced a method by which optical parameters of thin films are obtained from meaurements of interference between reflected and transmitted laser beams. Values of n, k, and h, the thickness of the film, are obtained. We have performed the measurements on a silicon oxide and cerium dioxide for evaluation the method. The results of two kinds of sample at room terperature made by vacuum deposition are that (a) the refractive index is 1.92 and the extinction coefficient is 0.001 at depostion rate 6Å/sec of SiO, refractive index 1.93 and extinction coefficient 0.002 at the rate 12Å/sec of SiO and (b) the refractive index is 2.26 and the extinction coefficient is 0.003 at deposition rate 40Å/sec of CeO? in which the whole sample thickesses are range from 1,000Å to 15,000Å.

인증과 무결성을 위한 웨이블릿 계수의 비트 플래인 기반 워터마킹

배재민,이신주,정성환 국립7개대학공동논문집간행위원회 2001 공업기술연구 Vol.1 No.-

We proposed a fragile watermark using selective bit plane of wavelet coefficient. Wong's method inserts a watermark into the LSB. It is a block-based approach in the spatial domain. We improve its related problems by selecting the inserted bit plane randomly with a secret key and processing the watermark in the wavelet transform domain. Through some experiments, our scheme improves the image quality of about 2-8dB, compared with Wong's method. It can recognize the minute modification in the intensity. The other modifying attacks including object-addition can be easily detected. Our approach also confirms that the exact location of modification can be found in the extracted watermark.

포도 Delaware의 無核果生産을 위한 Streptomycin利用 試驗(Ⅲ)

裵基煥,朴相眩,安相烈 진주산업대학교 1987 論文集 Vol.25 No.-

前 試驗에 이어 SM混用區의 GA_3濃度를 100PPM으로 높이고 處理時期의 폭을 滿開期前 20, 18, 16, 14, 12, 10, 8일로 하여 GA_3單用의 대체 可能性을 試驗한 結果는 다음과 같다. 1. 滿開期는 兩 主區 모두 無處理보다 2~3일 빨랐다. 2. 熟期는 兩 主區 모두 無處理보다 25일 정도 早熟되었다. 3. 無核化率은 混用區에서 56個區 중 2個區가 有核粒이 1~2개 나타났고, 單用區는 56個區 中 13個區에서 1~3個의 有核粒이 나타났다. 4. 收穫果房狀態는 兩 主區間에는 有意差가 인정되지 않았고, 各 細區間에는 果房長에서만 5%수준 以上의 有意差를 보여 處理時期가 빠를수록 길어졌다. The studies were conducted continuously following previous test to determine the possibility of uitilization with streptomycin for seedless berries production in Delaware grapes. The two main plots which were applied with different chemicals (combind solution of GA_3(100PPM)+SM(200PPM), GA_3(100PPM) alone solution) as pre-bloom application and the seven split plots according to days applied before full bloom were designed. The results obtained were as follows ; 1. The days of full bloom in both main plots was accelerated by two to three days compared with that in the untreatment. 2. The days of maturity in both main plots was accelerated by twenty-five days compared with that in the untreatment. 3. In combined solution plots, seed holding bearies were found in two out of fifty-six plots, but in alone solution plots they were found in thirten out of fifty-six plots. 4. The status of cluster harvested in both main plots were nonsignificant, but the lenght of cluster havested in each split plot were singificant at the 5 percent level.

직류전위차법에 의한 피로균열 진전속도 측정시스템의 제작

배성인,차정환,김종섭,최수준 國立 昌原大學校 産業技術硏究所 1995 産技硏論文集 Vol.9 No.-

Automatic fatigue crack length measuring system using DC electrical potential method and the system control program for automatic fatigue testing under random load condition were made in this study. And using these system and control program, fatigue tests were executed under constant and random load condition. As the result, the propagation of crack in random loading can be represented Paris equation and log normal probability function. But, constant and random load test show different crack propagation properties.

광학적 방법에 의한 복굴절성 물질의 열전도도 측정과 불순물 첨가효과

裵世煥,成商基,丁世敏 東亞大學校 大學院 1984 大學院論文集 Vol.9 No.-

An optical method for measuring the thermal conductivity of the birefringent materials, which utilized the principle of retardation interference between the ordinary and extraordinary waves, was examined by constructing a polarization interferometer. The net input power was calculated by means of the net input approach. In this experiment, we chose pure KDP and 0.01 mole% ADP added KDP from various birefringent materials as specimen. The result made good agreements with some other reference data and the impurity effect on the thermal conductivity was not found in accordance with Choi's result.

하악 시상골 절단술 후 고정 방법에 따른 회귀 성향에 대한 비교 연구

배진오,이동근,오승환,신기영,장관식 대한악안면성형재건외과학회 2000 Maxillofacial Plastic Reconstructive Surgery Vol.22 No.2

Objective : To compare two different methods of rigid fixation in postoperative stability after mandibular setback, Material and Methods : 28 patients with Class III malocclusion were treated by bilateral sagittal split ramus osteotomy(BSSRO) and mandibular setback were selected for this study. Group A(n=14) had the bone segments fixed with monocortical miniplate on the lateral side of the mandibular body and Group B(n=14) had three noncompressive bicortical screw inserted at the genial area through a transcutaneous approach. Cephalograms were taken preoperatively, postoperatively within 1 weeks and at a follow-up period (mean 8.9 months after surgery) and the amount of setback and postoperative change were measured. Results : Postoperative relapse between two groups was minimal in setback of the mandible. Statistical analysis showed no significant difference in postoperative relapse. Conclusion : This study suggests that both methods of skeletal fixation investigated give comparable postoperative stability and their use in mandibular setback appears to be a fairly stable clinical procedure.

전계발광소자를 위한 강유전체 박막의 제작 및 특성

배승춘,김정환,김호운,박성근,김기완 경북대학교 센서기술연구소 1997 센서技術學術大會論文集 Vol.8 No.1

PLT and PLZT feroelectric thin films were fabricated on ITO substrate by rf magnetron sputtering. Pressure was 30mTorr, rf power was 180W and substrate temperature was varied from room temperature to 500℃. In this case, PLT had the highest dielectric constant of 120 at 500 ℃, oppositly PLZT had the highest dielectric constant of 312 at room temperature. I-V characteristics of PLZT film were shown that leakage current of PLZT film deposited at room temperature was below 3μA at 100V.

共産圈 國家의 體制變革과 南北韓

裵相五,金泰丸 忠南大學校 法學硏究所 1990 法學硏究 Vol.1 No.1

포도 Delaware의 無核果生産을 위한 Streptomycin 利用 試驗(I)

裵基煥,安相烈 진주산업대학교 1985 論文集 Vol.23 No.-

Delaware의 無核早熟栽培에서 Streptomycin(SM)을 Gibberellin(GA_3)과 混用함으로써 GA_3의 單用 前處理를 代替할 수 있는 지의 可否를 알고저, 後處理는 GA_3 100ppm로 滿開 後 10日에 같이 하고, 前處理는 GA_3 25ppm+SM 200ppm 混用區와 GA_3 100ppm 單用區(慣用區)을 設置하고, 이들 兩 主區에 各其 滿開 前 16日 14日, 12日의 處理時期를 달리하는 細區를 두어 成熟期, 無核化率, 果房狀態 등을 調査하였는데, 兩 主區가 모두 높은 無核化率을 보였으나, 混用區는 單用區에 비하여 成熟이 1∼3日 늦을 뿐 아니라, 果房長이나 果房重, 着粒數, 平均果粒重이 모두 1% 水準 以上의 有意差로, 果房長이 짧고 果房重과 平均果粒重이 가벼우며, 着粒數도 적어, GA_3 25ppm+SM 200ppm의 混用前處理로서는 GA_3 100ppm의 慣用處理를 代替하기가 어려우리라 생각된다. The studies were conducted to determine the possibility of utilization with streptomycin for seedless berries productionin in Delaware grapes. Two main plots which were applied with different chemicals (combined solution of GA_3(25ppm) and SM(200ppm), GA_3 alone solution (100ppm)) as pre-bloom application, and three split plots according to days applied before full bloom were designed. The results were as follows : 1. Both main plots showed satisfactory seedless. 2. The time of maturity in combined solution plot was late by one to three days compared with that in GA_3 alone plot. 3. In combined solution plot, cluster's length was short, the weight of cluster and berry were light, and the number of berries per cluster was small, conpared with GA_3 alone plot.

급성 골수성 백혈병 환자에서 발생한 침습성 아스페르길루스중에 대한 수술적치료 1 예

배영환;어원식;어상민;김승만 김태영;박수영;서영경;정은주;안효정 인제대학교 2011 仁濟醫學 Vol.32 No.-

Invasive pulmonary aspergillosis is known to have a poor prognosis and major cause of morbidity and motality in patients with hematologic disease. Without adequate therapy, invasive pulmonary aspergillosis will almost always progress to fatal pneumonia. Early administration of antifungal agents in patient with invasive pulmonary aspergillosis is most important. And surgical resection of aspergillous-infected tissue may be useful in patients with lesions that are contiguous with great vessel and lesions causing hemoptysis. We reported a rare case of surgical resection as curative treatment for invasive pulmonary aspergillosis patient in 58-year-old man who had the history of acute myeloid leukemia.