http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
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.
중년 이후의 남성에 있어서 알콜 섭취가 C-reactive protein 및 관련인자들에 미치는 영향
권대근,성동진,김승권,송영주 한국스포츠리서치 2004 한국 스포츠 리서치 Vol.15 No.6
The purpose of the present study was to investigate the effect of C-reactive protein level and related risk factors such as T-chol, TG, uric acid and albumin in middle-aged Korean men with the frequency of alcohol consumption. The subjects of the present study was 94 men of 50-years old ages men in Seoul, Korea. The subjects were classified into 3 groups by Frequencies of alcohol consumption as follows ; non-alcohol consumption group (NA), light alcohol consumption group(LA: once or twice per week), heavy alcohol consumption group(HA: drinks more than 3 times per week). The CRP and T-chol, level of HA group was higher than compared to NA group(p<.05). In terms of TG, UA and albumin concentration. there was no significant difference. however. the value of TG was slightly higher trend in the HA group. The relationship between CRP & TG, UA was shown to significantly inverse correlation and the relationship between CRP & albumin was shown to significantly reverse correlation(p<.001, respectively). From these results. there was suggested that CRP and related cardiovascular rise factors were increased with frequency of alcohol consumption and high level of blood CRP, TG, UA are potential risk factors of cardiovascular disease factors in middle-aged korean men.
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.
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.
배남규,문석재,임동윤,권오성 대한본초학회 1997 大韓本草學會誌 Vol.12 No.2
The present study was attempted to investigate the cardiovascular effects of Cheonmagudeumg-Eum (CMGDE), which is known to be one of chinese medical prescriptions used in treatment of hypertension, in the anesthetized rats and to clarify the mechanism of its pharmacological action, making use of its water extract. 1. CMGDE (5-45 ㎎/㎏), given into a femoral vein of the rat, produced a dose-dependent hypotensive and bradycardic responses while even much larger doses of it (10-90 ㎎/㎏), given into the rectum, did induced negligible hypotensive responses. 2. CMGDE-induced depressor responses were inhibited greatly by pretreatment with phentolamine (an adrenergic α-receptor antagonist), but not by pretreatment with atropine (an antimuscarinic agent) and chlorisondamine (an autonomic ganglionic blocker). 3. Pressor responses evoked by intravenous norepinephrine were attenuated significantly by pretreatment of CMGDE-infusion with a rate of 45㎎/㎏/20min. 4. In the rat aortic strips, phenylephrine (an adrenergic α1-receptor agonist) and high potassium (a membrane depolarizing agent) caused potent contractile responses, respectively. However, in the presence of CMGDE (2㎎/㎖), the contractile responses of phenylephrine (10-5M) and high potassium (5.6×10 exp (-2)M) were markedly inhibited. Taken together, these experimental results suggest strongly that Cheonmagudeung-Eum may cause the hypotensive responses in the anesthetized normotensive rat, indicating that this cardiovascular effects of CMGDE is likely due to the blockade of adrenergic α-receptors without cholinergic effects.
Gwon, Hui-Dong,Bang, Jun-Suk,Yoon, Kye-Seok,Park, Se-Hong,Park, Sang-Hui,Jung, Min-Yong,Lee, Sang-Han,Kim, Min-Woo,Hong, Sung-Wan,Cho, Gyu-Hyeong Institute of Electrical and Electronics Engineers 2018 IEEE transactions on power electronics Vol.33 No.4
<P>This letter presents a 2-phase 3-level (2P3L) envelope tracking supply modulator (ETSM) for a long-term evolution 20 MHz (LTE20) radio frequency power amplifier as a solution for the ET system. This 2P3L ETSM that is composed of only switching converters achieves high efficiency, fast transient response, and a small output current ripple. To properly operate the proposed 2P3L ETSM, 4 pulse width modulatiop (PWM) signals with a 90° phase shift from each PWM signal are required without any mismatch between duty cycles. To remove the mismatch, a time-division multiplexing comparator and a duty-cycle calibrator are proposed. Thanks to the proposed techniques, the proposed ETSM fabricated in 0.18-μm CMOS achieved the highest peak dynamic efficiency of 88.6% with an LTE20 signal, which is superior to the state-of-the-art systems.</P>
( Dong Gwon Yu ),( Nyun Namgung ),( Jong Hyuk Kim ),( Seung Yeon Won ),( Won Jun Choi ),( Dong Yong Kil ) 한국축산학회(구 한국동물자원과학회) 2021 한국축산학회지 Vol.63 No.4
The objective of the current study was to investigate the effects of stocking density (SD) and dietary supplementation of vitamin C on growth performance, meat quality, intestinal permeability, and stress indicators in broiler chickens. The study was conducted using a completely randomized design with a 2 × 2 factorial arrangement consisting of 2 different SD and 2 supplemental levels of dietary vitamin C. A total of 1,368 Ross 308 broiler chickens of 21 days of age with similar body weights (BW) were randomly allotted to 1 of 4 treatments with 6 replicates each. Different numbers of birds per identical floor pen (2.0 m × 2.4 m) were used to create 2 different SD levels of low SD (9 birds/㎡) and high SD (18 birds/㎡). The basal diet was formulated with no supplemental vitamin C to meet or exceed nutrient recommendations of the Ross 308 manual. The other diet was prepared by supplementing 200 mg/kg vitamin C in the basal diet. The study lasted for 14 days. At the end of the study, 3 male birds per replicate were selected to analyze meat quality, intestinal permeability, and stress indicators such as blood heterophil:lymphocyte (H:L) and feather corticosterone (CORT) concentrations. Results indicated that there were no interactions between different SD and dietary supplementation of vitamin C for all measurements. For the main effects of SD, birds raised at high SD had less (p < 0.01) BW, BW gain, and feed intake with increasing stress responses including greater blood H:L and feather CORT concentrations (p < 0.01) than those raised at low SD. Transepithelial electrical resistance in the jejunal mucosa was decreased (p < 0.05) at high SD, indicating an increase in intestinal permeability. However, the main effects of dietary supplementation of 200 mg/kg vitamin C were insignificant for all measurements. In conclusion, high SD of broiler chickens impairs growth performance and intestinal barrier function with increasing stress responses. However, dietary supplementation of vitamin C may have little beneficial effects on broiler chickens raised at the high SD condition used in the present study.