영상 감시 시스템에서의 개선된 Tearing 현상 방지 디스플레이 시스템

이동학,정연권,정선태 崇實大學校 生産技術硏究所 2001 論文集 Vol.31 No.-

In display systems employing an analog monitor, the tearing artifact such that an window screen is divided into two parts showing different scenes can occur when the change of scenes in the moving pictures is very fast, but the frame buffer's refresh rate does not match the monitor's scanning frequency. In the DVR system, a recently popularized visual monitoring system, the tearing artifacts becomes more serious since the frame buffer's refresh rate is vey high due to the requirement of multi-channel display. In this paper, we propose an improved display system for windows-based DVR systems which prevents the tearing artifacts without daterioration of display speed perfromance. The efficiency of the proposed display system is verfied through experiments.

굴 養殖場의 環境衛生 및 統營灣의 汚染에 對한 硏究

崔渭卿,張東錫,李鐘甲,權在健 釜山水産大學校 1974 釜山水産大學 硏究報告 Vol.14 No.1

1973年 4月 부터 1974年 3月까지에 걸쳐 우리나라 南海岸 主요 굴 養殖場의 하나인 巨濟灣의 海水와 그 海域에서 養殖하느 굴에 對한 衛生指標細菌의 性狀과 汚染度를 알아 보고 一般 僞生物相을 把渥하고 또한 이 海域의 汚染源이 된다고 豫想되는 統營灣의 海水에 대한 衛生指標細菌의 性狀과 汚染度 그리고 一般 衛生物相을 究明함과 同時에 이들의 季節에 따른 遷移를 알고져 이 硏究를 실시하여 다음과 같은 結果를 얻었다. 1. 巨濟灣海水는 coliform group MPN의 median value가 <1.8- 8.6이었고, fecal coliorm MPN의 median value는 > 1.8- 5.7이었고, 生菌數는 3-34/ml였는데 汚染度는 여름이 겨울보다 훨씬 높았다. 2. 巨濟灣에서 養殖하고 있는 굴들은 coliform MPN의 median value가 88- 410, 最底<1.8에서 最高 16,000이었고, fecal coliform MPN의 median value가 >1.8- 45, 最底 18에서 最高 490이였으며, 生菌數는 median value가 290- 530, 最底 120에서 最高 36,000이였는데 汚染度는 여름이 겨울보다 훨씬 높았다. 3. 巨濟灣 全 station 海水의 pH는 8.10 前候로서 年中 큰 變化가 없고, 水溫은 1-2月이 最底 7℃, 7-8月이 最高로 26.5℃었고, salinity는 最底 31.54%로 7月이 낮고, 3月이 33.65%로서 가장 높았다. 4. 忠武灣의 汚染度는 coliform group MPN의 median value가 12- 2,200, 最底<1.8에서 最高 70이었고, fecal coliform MON은 median value가 4.5~1,700, 最低 4에서 最高 7,000이였으며, 生菌類의 median value가 23- 480, 最底 2에서 最高 4,200이였으며 여름이 겨울보다 汚染度가 높았다. 5. 潮夕別 汚染度는 底潮時의 coliform group MPN이 最高 1,800, 高潮時가 最高 240이었고, 底潮에서 高潮의 中間에는 最高 820, 高潮에서 底潮의 中間은 最高 1,600이였으며 底潮時가 高潮時보다 汚染度가 높았다. 6. 一般 衛生物은 모두 1,829 菌株를 分離하에 19層으로 同定하였다. 7. Vibrio parahaemolyticus와 Salmonella sp.는 忠武灣에서는 檢出되었으나 巨濟灣에서는 檢出되지 않았다. 8. Station과 station간의 오3染度는 巨濟灣의 경우 큰 差異가 없었는데 忠武灣의 station C-4(客船埠頭)는 他 station에 比해 훨씬 높았다. This study was conducted to investigate the contamination of sanitary indicative bacteria, and general microflora of the sea water and oysters of Geoje bay located at the southern coast of Korea, with respect to seasonal variation from April 1973 to March 1974. In addition, the sea water of Chungmu harbour adjacent to the Geoje bay hitherto considered as a contaminating source, was also examined at the same aspect as Geoje bay. The following results are obtained. In the sea of Geoje bay, the median value of coliform group MPN showed 1.8 to 8.6 and fecal coliform MPN was 1.8 to 5.7. Total plate counts amounted 3 to 34 per milliliter. The sea was much contaminated in summer than in winter. Oysters from the Geoje bay indicated 88 to 410 of median value in coliform MPN, maximum 16,000 and minimum 1.8 respectively. The fecal coliform MPN showed 18 to 45 in median value, 490 in maximum and 18 in minimum respectively. Total plate counts ranged 290 to 530 in median value, 36,000 in maximum and 120 in minimum respectively. Contamination of oysters was higher in summer than in winter. Throughout the Geoje bay sea, pH variation was almost negligible indicating the constant value of 8.10 with respect to season, however maximum water temperature indicated 26.5℃ during July to August while 7℃ of minimum temperature in January and February. Minimum salinity showed 31.54% in July and maximum was 33.65% in March. In Chungmu harbour coliform group MPN ranged 12 to 2,200 in median value, 70,000 in maximum and 1.8 in minimum. Fecal coliform MPN rested between 4.5 to 1,700 in median value, 4.000 in maximum and 4 in minimum. Total plate counts amounted to 23 to 480 in medi an value, 4,200 in maximum and 2 in minimum. The sea was more contaminated in summer than in winter. At low tide coliform MPN reached its maximum value of 1,800 while high tide had its maximum value of 240, however at the midtide from lowtide to high tide maximum value was 920 and at the midtide from high tide to low tide represented its maximum value of 1,600. Sea at low tide was more contaminated than at high tide. Total number of 1,829 strains of the general microflora were isolated and 19 genera were identified. Vibrio parahaemolyticus and Salmonella sp. Were detected in teh Chungmu harbour but not in the Geoje bay.

유리 성형용 금형의 균열 발생 기구

황규홍,송동환,양권승,이종국 조선대학교 생산기술연구소 2005 生産技術硏究 Vol.27 No.2

Microstructure of glass-forming mold have influence on the mechanical properties such as hardness, and life span of the glass-forming mold is strongly dependent on its microstructure. The glass-forming mold with guaranteed tool life requires fine particle size and homogeneous distribution of Cr precipitates in the matrix. In this study, mechanism on the crack creation of the glass-forming mold made in Korea (K-mold) was compared to the one glass-forming mold made in Japan (J-mold). SEM observation revealed that the particle size of the Cr precipitates in J-mold was smaller than that in K-mold, in addition the size distribution of J-mold was narrower than that of K-mold, resulting in long life of J-mold. Therefore, it was confirmed that the microstructure of the glass-forming mold related to Cr precipitates was one of the important parameters to improve the quality of products.

당뇨병성 신증 환자 20예에서 복합한약전탕액이 신기능에 미치는 영향

최우정,김동웅,신선호,이언정,최진영,신학수,조권일,이광석 대한동의생리학회,대한동의병리학회 2003 동의생리병리학회지 Vol.17 No.2

Diabetic Nephropathy is one of the major causes of chronic renal failure. It is a common microvascular complication and clinically defined as the presence of persistent Proteinuria. We studied the effects and change of the renal function of Complex Herbal medication of the 20Diabetic Nephropathy patients. We measured the initial levels of Total Protein, Creatinine Clearance Rate(Ccr), Serum Creatinine(Serum-Cr), Urine Creatinine(Urine-Cr) and HbA1C on admission and followed up the level changes of Total Protein, Ccr, Serum-Cr and Urine-Cr on discharge. The results are following : Complex Herbal Medication does not cause the renal toxicity. The longer hypertension period is, the higher Serum-Cr level and Urine-Cr level. In an older age group, Urine-Cr is lower. 4.From the "Deficiency in Origin and Excess in Superficiality(本虛表實)“points of view, Complex Herbal Medication improves the Serum-Cr in Diabetic Nephropathy patients. According to this results, it could be suggested that Complex Herbal Medication does not cause the renal toxicity in Diabetic Nephropathy patients and intensive controls of blood sugar, blood pressure and Complex Herbal Medication prevent the renal failure in Diabetic Nephropathy patients with early stage of Microalbumiuria.

Production of Hydrogen by Autothermal Reforming of Propane over Ni/<i>δ</i>-Al₂O₃

Lee, Hae Ri,Lee, Kwi Yeon,Park, Nam Cook,Shin, Jae Soon,Moon, Dong Ju,Lee, Byung Gwon,Kim, Young Chul American Scientific Publishers 2006 Journal of nanoscience and nanotechnology Vol.6 No.11

<P>The performance of Ni/<I>δ</I>-Al2O3 catalyst in propane autothermal reforming (ATR) for hydrogen production was investigated in the present study. The catalysts were characterized using XRD, TEM, and SEM. The activity of the Ni/<I>δ</I>-Al2O3 catalyst manufactured by the water-alcohol method was better than those of the catalysts manufactured by the impregnation and chemical reduction methods. The Ni/<I>δ</I>-Al2O3 catalysts were modified by the addition of promoters such as Mg, La, Ce, and Co, in order to improve their stability and yield. Hydrogen production was the largest for the Ni-Co-CeO2/Al2O3 catalyst.</P>

군입영 대상자의 HBsAg 양성률과 anti-HCV 항체 양성률의 변화

이원철,이동수,박영민,이영석,이강문,정규원,안병민,맹광호,김록권 대한간학회 2000 Clinical and Molecular Hepatology(대한간학회지) Vol.6 No.4

Background/Aims: Before the introduction of the HBV vaccination programs, the positivity of HBsAg among the general population was reported to be around 8% in Korea. Although recent reports revealed somewhat decreased values, a wide range of variation exists according to the authors. Major movements to control HBV infection include the programs such as the introduction of HBV vaccination in 1983, mass inoculation of the elementary school children since 1988 and inclusion of type B hepatitis in 1995 in Class III legal epidemics. The purpose of the present study was to examine the changing trend of the positivities of HBsAg, HBeAg and anti-HCV in army draftees in Korea since we believed that they are an ideal study group with a set of fixed variables such as gender and age. Methods: From January 1, 1993 to December 31, 1999, we evaluated a total of 498,206 male army draftees for serum ALT, HBsAg, HBeAg and anti-HCV antibody. HBsAg (Genedia, Yongin, Korea) and HBeAg (Amrad, Austrailia) were examined by EIA and Immunochromatography, respectively. Anti-HCV antibody was tested by 3rd generation EIA (Genedia, Yongin, Korea). Serum ALT was determined by autoanalyser, Polystat 2000 (Hitachi, Japan). Results: The majority of the draftees were 20 years old (68.8%). The positivity of HBsAg gradually decreased from 5.8% in 1993 to 4.3% in 1999(mean 4.8%). The positivity of HBeAg among the asymptomatic HBsAg carriers ranged from 47.9% to 55.6%(mean 51.8%). The positivity of anti-HCV antibody was seen in the range from 0.09% to 0.29%(mean 0.18%), and 84.5% showed normal ALT. The positivity of HBsAg among the anti-HCV positive subjects was 6.6%. Conclusion: The HBsAg positivity has significantly(p=0.001) decreased for the past 7 years. However, the positivity of anti-HCV antibody showed no significant pattern of change during the same period. (Korean J Hepatol 2000;6:474-480)

Multilocular Cystic Renal Cell Carcinoma associated with ADPKD

( Dong Jun Park ),( Jung Eun Lee ),( Young Hwan Hwang ),( Kwon Wook Joo ),( Yon Soo Kim ),( Curie Ahn ),( Jin Suk Han ),( Suhng Gwon Kim ),( Jung Sang Lee ),( Sang Eun Lee ),( Seung Hyup Kim ) 대한내과학회 2003 대한내과학회 추계학술대회 Vol.65 No.10

Helicobacter pylori 제균치료에 Rebamipide (Mucosta) 의 유용성

이재동,이문호,이강문,남승우,안병민,이동수,정현용,정일권,노임환 대한소화기내시경학회 2000 Clinical Endoscopy Vol.21 No.5

Bakground/Aims: Eradication of Helicobacter pylori infection is highly efficacious in preventing the recurrence of peptic ulcer. Rebamipide (Mucosta) is known to have the ability to inhibit neutrophil activity, to reduce the production of inflammatory cytokines, to scavenge oxygen radical, and to stimulate prostaglandin production. This study was designed to evaluate the effect of rebamipide on the eradication of H. pylori, and decrease of the infilatration of inflammatory cells. Methods: Eighty two patients with gastric or duodenal ulcers with H. pylori infection were allocated to two treatment groups. The patients were treated either with omeprazole 40 mg, clarithromycin 1.0 g, amoxicillin 2.0 g, rebamipide 300 mg (OCAR group) or omeprazole 40 mg, clarithromycin 1.0 g, amoxicillin 2.0 g (OCA group) for two weeks. Results: H. pylori was eradicated 56 out of 62 patients (90%) in OCAR group and 16 out of 20 patients (80%) in OCA group. The infiltration of inflammatory cells decreased in both treatment groups. No significant side effects had been noticed. Conclusions: The results of the present study suggest that rebamipide may be useful to decrease gastric mucosal inflammation in peptic ulcer disease. However, further detailed study will be reqiured to determine the potentially beneficial effect whether rebamipide can prevent the recurrence of peptic ulcer diseases with H. pylori infection.

Classification Method for Partial Discharge Waveform using Conv-LSTM

Gwon Dong Lee,Sooil Lee,Ju Hyeong Maeng,Daesik Ko,Seokil Song 한국콘텐츠학회 2020 한국콘텐츠학회 ICCC 논문집 Vol.2020 No.11

Vehicle IOT Sensor Data Analysis System to Detect Road Condition

Gwon-Dong Lee,Jinsu Kim,Ryong Lee,Minwoo Park,Sang-hwan Lee,Seokil Song 한국콘텐츠학회 2018 한국콘텐츠학회 ICCC 논문집 Vol.2018 No.12