위암환자의 복강내에 투여한 Mitomycin C-Carbon Particle의 Mitomycin 용출에 관한 연구

노승무,조영훈,정경수,오정연,김진향,양준묵,강대영,송규상,조준식,최선웅,이진호,민병무,김용백,김창식,박근성,인현빈,정현용,김학용 충남대학교 의과대학 지역사회의학연구소 1998 충남의대잡지 Vol.25 No.1

Locoregional recurrence is the most common type of recurrence in surgical operation of gastric adenocarcinoma, and peritoneal dissemination is one of the most difficult problems in advanced gastric adenocarcinoma treatment. Because the peritoneal cavity is the most common site of the first recurrence after gastric cancer resection, intraperitoneal chemotherpy seems a logical choice for cancer chemotherapy. The Mitomycin C(MMC) adsorbed by the activated charcoal particles(CH) is relatively released when the drug concentration surrounding the carbon particles becomes low in the peritoneum of the peritoneal cavity. For the intraperitoneal chemotherapy on the advanced gastric adenocarcnoma, mitomycin C adsorbed on activated carbon particles was administered in the peritoneal cavity just before abdominal wall closure. The closed drainage tubes were inserted in the peritoneal cavity and clamped for tuo hours after completion of operation. MMC concentrations were serially measured in peritoneal fluid, plasma and urine at 2hour, 48 hour, 72 hour and 168 hour following its administration in order to study the efficacy of the MMC-CH as a drug delivery system. There were minimal toxicities in born marrow, liver, and gastrointestinal system after intraperitoneal MMC-CH administration. The data of this study suggested that MMC-CH may have a somewhat more beneficial effect than surgery alone when administered in optimal dose and schedules, but the MMC concentration of the peritoneal fluid was not sufficient to eradicate remnant cancer cells, and effective duration of maintenance was only below 24 hours in the peritoneal fluid and plasma.

우심방을 침범한 거대 비호지킨씨 림프종 1예

강상범,진승원,이은경,박용현,최용호,김용주,박준철,김재형,홍순조,최규보,권종범,원용순,박건,이은희 대한순환기학회 2000 Korean Circulation Journal Vol.30 No.4

고효율 도로융설 시스템 성능평가에 관한 연구

김경진,이승용 한국교통대학교 2015 한국교통대학교 논문집 Vol.50 No.-

This study was conducted to verify basic snow melting performances of energy saving slip-prevention snow melting blocks which are developed as part of solutions of road malfunctions due to heavy snow in winter. An experiment was carried out in an indoor thermohygrostat in order to review the snow melting effects of six subjects. The variables of the six subjects were initial temperatures on the asphalt and concrete roads. As a result of an experiment, snow melting blocks exposed to the road surface were found to have almost same snow melting time, regardless of the types of roads, and the snow melting time varies from 2.67 times to 3.42 times depending on initial temperatures. In this study, the surface temperature of all subjects rose above 0℃ within 47 minutes and they were found to have outstanding snow melting effects. This study is one of basic studies for performance verification of snow melting blocks and further studies should be conducted to verify outdoor snow melting effects, skid resistance of blocks, and anchorage performance.

Single-Chip 마이크로 콘트롤러를 이용한 이상 전류 검출기

김경렬,나채동,문학룡,유두영 崇實大學校 生産技術硏究所 1993 論文集 Vol.23 No.-

The development of the measurement technology has occupied an important position of not only the electrical, electronic but also scientific technology sphere. In the past, the abnormal current detector was used by the analog method, had many the trouble and the inconvenience of measurement, dissatisfied the accuracy and had difficulty in storing, preserving the data. In this paper, these are improved by using single-chip microcontroller which detects the abnormal current and saves in back-up RAM after digitizing. For the efficient management, processing of the memory, it was used the index method. The data in the memory can be transmitted to the personal computer by the serial communication, and also be independently transmitted by the parallel communication to the personal computer which is interfaced with. The software to control system components are structured in assembly language and C language, in order to process and analyze the software is used in C language.

인공모래 부산물 재활용 방안

김경남,신대용,이현종 강원대학교 부설 석재복합신소재 제품연구센터 2002 석재연 논문집 Vol.7 No.-

인공모래 제조시 부산물로 발생하는 석분슬러지에 의한 환경문제와 폐기되는 자원의 활용문제를 해결하기 위하여 석분슬러지와 점토 및 폐유리분말을 이용하여 900∼1,100℃로 소성하여 세라믹스 건자재를 제조하였다. 석분 슬러지는 평균입경 16.3㎛, 비표면적 0.42㎡/g, 화학조성은 CaO 46.43wt%, SiO_2, MgO 와 Al_2O_3가 7.83 wt% , 6.17 wt% 및 3.13 wt%이며, 주결정상은 calcite (CaCO_3)와 dolomite (CaMg(CO_3)_2)로서 약 800℃에서 CaCO_3나 CaMg(CO_3)_2의 열분해에 의한 32.52wt% 의 강열감량을 나타내었다. 석분슬러지와 점토를 이용한 시편(No. 1, 4, 7, 10 및 13)은 점토의 첨가량과 소성온도가 증가함에 따라 시편의 부피비중 및 압축강도는 증가하였으나 기공률과 흡수율은 감소하여 No. 1, 4, 및 7 시편은 부피비중 1.78∼1.98, 기공률 6.4∼12.5%, 흡수율 10.3∼12.7%, 압축강도 264∼370kgf/㎠을 나타내었다. 폐유리분말을 첨가한 시편(No. 2, 5, 6, 8, 9, 10 및 12)의 부피비중과 압축강도는 1.91∼2.63 및 213∼895kgf/㎠로서 폐유리분말의 첨가가 시편의 소결성과 압축강도의 향상에 기여하여 세라믹스 건자재로 사용이 가능하였다. The utilization of waste stone powder sludge produced secondarily from artificial sand plants of Ssangyoung resource development (Co.) and general waste, as was classified, became very important to solve the environmental problem and waste materials recycle. In the chemical composition of stone powder sludge, the amount of CaO was 46.43wt%, SiO_2, MgO and Al_2O_3 were 7.83 wt% 6.17 wt% and 3.13 wt%, respectively. The mean average particle size was 16.3㎛ and specific surface area was 0.42㎡/g. Main crystal phases were calcite (CaCO_3) and dolomite (CaMg(CO_3)_2) and ignition loss was 32.52wt% because of decomposition of CaCO_3 or CaMg(CO_3)_2. Specimens were fabricated by mixing the waste stone powder sludge, low-grade clay, waste glass powder and sintering at 900∼1,100℃ for 2 hours. The density and compressive strength of specimen increased with increasing the sintering temperature and the amount of clay. The specimen showed the bulk density of 1.78∼1.98, porosity of 6.4∼12.5%, water absorption 10.3∼12.7% and compressive strength of 264∼370 kgf/㎠. Those of the specimen heated at 1,050℃ increased with increasing the added amount of waste glass powder, bulk density was 1.91∼2.63 and compressive strength was 213∼895 kgf/㎠. Therefore, the waste stone powder sludge can be used as a constructional materials.

高麗道敎思想의 硏究

徐慶田,梁銀容 圓光大學校 1985 論文集 Vol.19 No.1

1. Introduction Taoism prevailed most widely in Koryo Dynasty throughout the the Korean history. Although Taoism was far beyond the influencing power of then nation religion, Bu-ddhism, and Confucianism thought of as the orthodox scholarship, it stands now at the critical point to grasp the Koryo thoughts from the viewpoint of its prevalence in the whole nation. What's more, it took on the character of guardian religion. But, judging from the studies on Koryo Taoism so far made, we, above all, must collect the basic materials about it. As matters stand, in this study, it is absolut-ely necessary that we should devote ourselves to amassing the data concerned. As a result of gathering the materials, we have presented the following sourcess-100 odd cantos of Choryechongsa (醮禮靑詞, the prayers of Taoist ritual)and 300 odd historical materials. Analyzing the existing materials, mentioned about we tried to grasp the features of Koryo Taoism, to correct the misunderstood concept about it, and to unveil the hidden facts. 2. Taoist Institutions in Koryo Dynasty The Taoist institutions of Koryo Dynasty can be classified into 10 odd kinds. Taoist rites were held in the organs-shrines, Taoist temples, and related government officies. The names designated to them are as follows:Daechunggwan (大淸觀), Chosungcheo(醮星處), Kuyodang(九曜堂), Pokwongung (福源宮), Jungsasaek(淨事色), Sojeonsaek(燒鐵色), Daechosaek(大醮色), Sinkyeokjeon(神格殿). Among them, Kuyodang was most early estalbished in 924 (the ninth year of founding King Taejo). This has made the existence of the early Koryo Taoism a certainty. The arriving of two Taoist monjk from the northern Sung Dynasty, Chin-ese, in 1110 made Koryo Taoism to enter on a new phrase. The founding of Pok-wongung well supports the fact. Pokwongung was called among scholars by the wr-ong name of Pokwongwan(福源觀), written in Chinese records. Centering around Pok-wongung, Koryo Taoism was systematized and developed into Jaecho(齋醮), the royal ritual of Taoism. Along with the forming of jaecho, it was clearly established that Koryo Taoism was ritual-oriented. There after various Taoist organs such as Jeong-sasaek(淨事色), and Daechunggwan(大淸觀), were erected and used to observe royal ritual. 3. The Ritual of Koryo Taoism It was believed that Jaecho was really held from 1012 (King Kyunjong 3 years). But in Choi Seung-ro's "28 items of current affairs (時務二十八條)", we've revealed the fact that jaecho was already prevalent before 982 (the first year of King Sungjong). We could infer from Choi's record that it had been observed from the age of King Taejo. One of the most important rites of Koryo Taoism was Youngbodoryang (靈寶道場). Through our studies about Koryo Taoism, we have found the surprising fact Youngbodoryang belongs not to Buddhism (considered so before our study) but to Taoism introduced from the northern Sung Dynasty to Chosun Dynasty. To sum up, there are 222 records showing that in Koryo were really practiced Ja-echo from its founder to the last king(including 21 kings out of the total of 34 ones). Besides Youngbodoryang, the kinds of ritual held at that time amounted to 21 odd ones-Samgyecho(三界醮), Taeilcho(太一醮), Shipilyocho(十一曜醮), Bonmyeongcho(本命醮), Pukdocho(北斗醮), Samchungcho(三淸醮) and so on. 4. Taoist Thoughts of Koryo Dynasty Koryo Dynasty had Buddism as its national religion, but its kings had a great zeal for Taoism and Confucianism as well. The three main religions were equal in their social position from the Three Kingdoms Period to Koryo Dynasty. In other words, Taoism alongside with Buddhism and Confucianism was considered as the principle of governing the country. Koryo Taoism can be divided into three periods according to the historical trends. First period of Taoism was opened by the time of early Koryo Dynasty, continuing till 1110 year (King Yejong 5 years), in which Jaech, was practiced in Kuyodang. The second period covered the age from King Yejong's reign (The established Taoism was introduced at that time) to late Koryo Dynasty neo Confucianism, wasintrodu-ced from Sung Dyasty, China. In the second period Koryo Taoism was systematic-ally established and exerted predominant influence on the people. Various organs of Taoism were rapidly increased. Taolsm of the period was faith-featured. Sukeongshin Faith(守庚辰信仰)was the typical example of it. In the third period of Taoism, Songnihak was about to take its shape as a dominant philosophy and to extend to all areas of human life. Gradually, however, Taoism had to face the fate of repl-acement by neo-Confucianism and was even regarded as heresy. The Tao Te ching sutra, the most important scripture of Taoism, of the early Koryo Dynasty was replaced by the Hwangjunggyung Sutra(黃庭經)at the time, Judging from the fact, the late Koryo Taoism see to have a close connection with Chosun Taoism putting much emphasis on Yeondan(練丹)Breathing Practice. 5. Conclusion Through our study the Koryo Taoism has been found characteristic of being rit-ual-oriented. Before and after erection of Pokwongung. Koryo Taoism under-went the systematization of established Taosim, but its main function of royal rit-ual still remained with the role of national guardian religion. As a result of this study, there are still several things left unsolved. Firstly, koryo Taoism has to be newly illuminated in connection with Chinese Taoism. Secondly, it should be understood with then prevalent buddhism and Confucianism. Thirdly, the extant Choryechongsamun should be thoroughly analyzed.

ESPI法을 利用한 點 熔接部의 面內變位 測定에 關한 硏究

차용훈,김덕중,이연신,채경수,성백섭 조선대학교 생산기술연구소 1997 生産技術硏究 Vol.19 No.1

Electronic Speckle Pattern Interferometry(ESPI) using the Model 95 Ar laser, a video system and an Image processor was applied to the in-plane displacement measurements. Unlike traditional strain gauges or Moire method, ESPI method requires no special surface preparation or attachments and can be measured in-plane displacement with no contact and real time. In this experiment specimen was loaded in parallel with a loadcell. The specimen was the cold rolled steel sheet of 2mm thickness. which was attached strain gauges. The study provides an example of how ESPI have been used to measure strain displacement in this specimen. The results measured by ESPI compare with the data which was measured by strain gauge method in tensile testing.

유전 알고리즘을 이용한 거리 정보의 추출

김용석,도경훈 東西大學校 1997 동서논문집 Vol.3 No.1

In this paper, a genetic algorithm-based optimization technique for stereo matching is proposed. Stereo matching is the essential process to recover three-dimensional structure of objects. The geometrical difference of left and right images called as disparity is constructed as two-dimensional chromosomes with fitness values inversely proportional to their costs. The cost function is composed of the intensity-difference between two images and smoothness of disparity. The crossover and mutation operators in the two-dimensional chromosomes is described. The operations are affected by the disparities of neighbor pixels. The knowledge-augmented operators is shown to result in rapid convergence and stable result. The genetic algorithm for stereo matching is tested on synthetic and natural images. Experimental results for various images show that the proposed algorithm has good performance even if the image has the unfavorable conditions.

裁培地域에 따른 小麥의 生育 및 種實品質 差異

윤창용,민경수 全南大學校 農業科學技術硏究所 2001 農業科學技術硏究 Vol.36 No.-

This experiment was conducted to investigate the difference of major growth characteristics and grain quality of wheat under different locations(Naju, Jinju, and Daejeon), varieties(Chokwang, Dahongmil, Urnpamil, Tapdongmil, Urimil, and Olgeurumil), and years('95/'96 and '96/'97). The results are summarized as follows; 1.The heading date was influenced by in order of variety, year and location. 2.The maturing date was influenced by in order of variety, year and location like the heading date. 3.The maturing period was influenced by year most greagtly. 4.The clum length was influenced by location most greatly. 5.The number of spikes per ㎥ was influenced by location most greatly. 6.The number of grains per spike was influenced by in order of variety, location and year. 7.The thousand grain weight was influenced by in order of variety, location and year. 8.The yield potential was influenced by in order of variety, year, and location. 9.The milling rate 65.6% at Naju, 62.7% at Jinju, 61.6% at Daejeon, 67.4% in Tapdongmil, 66.4% in Urnpamil, 60.8% in Dahongmil. 10.The protein content was 12.0% at Jinju, 11.4% at Naju and Daejeon, 12.7% in Urnpamil and Tapdongmil, 10.1% Urimil. 11.The ash content was 0.43% at Naju, 0.42% at Jinju, 0.60% at Daejeon, 0.44% in Olgeurumilm and 0.50~0.52% in Chokwang, Urimil, and Dahongmil.

양극성 장애에서 발병 연령에 따른 증상 및 예후의 차이 : 전향적 1년 추적 연구

나경세,김용구 大韓神經精神醫學會 2007 신경정신의학 Vol.46 No.2

Objectives : There have been several studies demonstrating that age at onset is associated with clinical and functional outcome in bipolar disorder. The purpose ofthis study was to investigate whether age at onset would influence on the prognosis of patients with bipolar I disorder in a Korean sample. Methods : Thirty-one patients with bipolar I disorder (DSM-IV) were recruited. Age at onset was split at age 30 years into early onset (n=15) and late onset (n=16) groups. These patients were followed at 1 year to assess re-hospitalization, Psychiatric symptoms (Brief Psychiathc Rating Scale, Young Mania Rating Scale), and social functioning (Korean version of the Social Adjustment Scale II revised version : KSAS II-RV). The subgroups were compared by Mann-Whitney U test and chi-square test. Results : Early onset group had more psychotic symptoms at hospitalization (χ²=5.743, P=.029) and had more KSAS II-RV score aRer 1 year (U=49.000, P=.004). Other psychiatric symptoms except psychosis were not significantly different bet-ween early onset and late onset group. KSAS II-RV score was not significantly correlated with BPRS and YMRS score. Conclusion : Our data suggest that early onset group may have poorer social functioning than late onset group in bipolar I disorder.