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이정숙,안민호,이은희,신옥연,김영준,이윤관 한국스포츠리서치 2003 한국 스포츠 리서치 Vol.14 No.6
This study was aimed to find what impacts the combined training of circuit weight training and swimming training can give to the competing power of swimming athletes and their respiratory functions and to provide the basic data for preparing the desirable training program to shorten swimming records through 14 girl swimming athletes, a group of 7 athletes in circuit weight training and another 7 in swimming training and the following conclusions were obtained: 1. Swimming and Circuit training groups showed, before and after 12 week training, the changes of muscular strength: grasping power (p<.001), back muscle (p<.01), arm extensor (p<.05), leg extensor (p<.05), leg curl extensor (p<.01), broad jump (p<.05) increased espectively than those of swimming training group and which were more effective. 2. In the comparison between groups, the meaningful difference appeared in swimming training groups, showing grasping power (p<.01), back muscular strength (p<.01), arm extensor (p<.05), leg extensor (p<.01), leg extensor (p <.01) 3. In the changes of competition record, in swimming and circuit training group, before and after 12 week training, meaningful increases appeared by 50m record(p<.05), 200m record (p<.05) 4. In the changes of competition record, as for the comparison between groups, meaning ful increases, 50m record (p<.05), 200m record (p<.05) appeared.
김은희,김철규,이순교,김순덕,이혜옥,권정순,이경미,이민미,심순미,유용만,신종식,강은희,이상일,김병식,오성태,육정환,박수길 한국의료QA학회 2003 한국의료질향상학회지 Vol.10 No.2
Background : Gastric cancer is the most common malignant tumor in Korea. surgical operation is one of the major treatment modalities for gastric cancer patients. Therefore, gastrectomy is one of the most common procedures in General Surgery. There were variation in length of hospital stay and medical treatment for gastrectomy between three surgeons at Asan Medical Center. Clinical pathways have received considerable attention as a tool for recucing the medical practice variation, increasing the efficiency of care process, and improving the quality of care. The aim of this study was to evaluate the effect of a clinical pathway for gastrectomy in gastric cancer patients. Methods : The clinical pathway for gastrectomy was developed and implemented by a multidisciplinary group in Asan Medical Center. A computerized clinical pathway program was developed and revised after a pilot test. A total of 145 patients underwent gastrectomy by three surgeons at Asan Medical Center. We compared the length of hospital stay, patient satisfaction, and unplanned readmission rate between the pre-pathway group(n=67) and the post-pathway group(n=78). We also investigated the degree of satisfaction among the physicians and nurses who were main end-users of the clinical pathway. Results : The clinical pathway was applied to all target patients. The average length of hospital stay was shortened from 12.7days to 10.6days(p<0.01). The degree of patient satisfaction with the care process changed from 90.3% to 89.2% after the implementation of the clinical pathway, but the difference was of satistically significant(p=0.761). Unplanned readmission rate was 2.9% in the pre-pathway group. More than 90% of physicians and nurses answered that the clinical pathway had been a useful tool in their medical practice. Conclusions : The findings of the study demonstrated that implementation of the clinical pathway for gastrectomy produced substantial reduction in the length of hospital stay while improving the quality of patient outcomes. The computerized clinical pathway program can be used as one of the powerful patient management tools for reducing the practice variations and increasing the efficiency of care process in Korea hospital settings.
Fabrication and Drive Test of a Peristaltic Thermopnumatic PDMS Micropump
Ok Chan Jeong,Sin Wook Park,Sang Sik Yang 대한기계학회 2005 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.19 No.2
This paper presents fabrication and drive test of a peristaltic PDMS micropump actuated by the thermopneumatic force The micropump consists of the three peristaltic-type actuator chambers with microheaters on the glass substrate and a microchannel connecting the chambers and the inlet/outlet port The micropump is fabricated by the spill-coating process, the two-step curing process, the JSR (negative PR) molding process, and etc The diameter and the thickness of the actuator diaphragm are 2 5 mm and 30 ㎛, respectively The meniscus motion in the capillary tube is observed with a video camera and the flow rate of the micro pump is calculated through the frame analysis of the recorded video data. The maximum flow rate of the micro-pump is about 0.36 μL/ sec at 2 Hz for the zero hydraulic pressure difference when the 3-phase input voltage is 20 V.
Sin-Wook Park,Keon Kim,Chang-Yun Je,Chang-Hyeon Choi,Sang-Gyue Choi,Jong-Soo Lim,Ok-Mi Jeong,Guk-Hyun Suh,Chang-Min Lee 한국동물위생학회 2023 韓國家畜衛生學會誌 Vol.46 No.3
This study was carried out to investigate the prevalence and antimicrobial resistance of Salmonella serotypes in duck farms of Jeollanam-do Province, South Korea. A total of 1112 samples (breeder ducks, 286; broiler ducks, 826) were collected from 196 duck farms (breeder duck farms, 25; broiler duck farms, 171) between January 2018 and November 2019. The total prevalence of Salmonella serotypes was 45.4% (89/196) in the duck farms, with no significant difference between prevalence in breeder and broiler duck farms (48% and 45%, respectively; P>0.05). The most prevalent serotype among the 127 Salmonella isolates was Salmonella Typhimurium (20.5%) followed by Salmonella Albany (17.3%), Salmonella Hadar (15.7%), and Salmonella Enteritidis (11.8%). Maximum resistance was observed against penicillin (78.74%), followed by tetracycline (68.50%), and kanamycin (65.35%). Of the 127 isolates, 117 (92.13%) were resistant to ≥3 antimicrobials and 2 to all 18 antimicrobials. Our results demonstrate the presence of Salmonella strains and their resistance to multiple antimicrobials, thus indicating a public health concern in South Korea. The emergence of Salmonella stains that are resistant to multiple drugs highlight the need for careful use of antimicrobials in duck farms.
SURFACE MODIFICATION OF ALUMINUM OXIDE FOR BIOSENSING APPLICATION
Sin, Eun Jung,Moon, Young-Soon,Lee, Yeon Kyung,Lim, Jeong-Ok,Huh, Jeung-Soo,Choi, Sie-Young,Sohn, Young-Soo National Taiwan University 2012 Biomedical engineering Vol.24 No.2
<P> The surface modification for immobilization of antibodies on the aluminum oxide surface was developed for biosensing application. The aluminum oxide has been received much attention since it has various advantages including low cost, hardness, resistance to organic solvents, and high capacitance. In addition, the aluminum oxide can prevent the leakage current in the electrical detection. For development of the protein anchorable surface, the aluminum oxide chip was treated with oxygen plasma and directly immersed in ethanol and toluene solution of 3-aminopropyltriethoxysilane (APTES). Next, this amine modified chip was immersed in the glutaraldehyde solution that contained sodium cyanoborohydride. Finally, the fluorescent materials, the Alexa 488, and the FITC conjugated anti-IgG were reacted to the aldehyde-modified surface. To verify the modified surface, the intensity of the fluorescence was measured and compared. The higher intensity of the fluorescence was observed when the APTES was dissolved in toluene rather than in ethanol. From the highest intensity of the fluorescence observed, the FITC conjugated anti-IgG was well immobilized on the modified surface of the aluminum oxide with APTES and glutaraldehyde. Thus, the proposed surface modification method can immobilize the proteins including antibodies, and can be applied for the various biological researches including biosensors and biochips. </P>
魚礁에 關한 硏究(1) : 西歸浦 沿岸의 海底地形에 關하여 The submarine topography of Seogwipo coast
辛亨鎰,朴正埴,徐斗玉 제주대학교 1976 논문집 Vol.8 No.-
Submarine topography and the force of the wind investigated in Seogwipo coast owing to set up articial fishreef. The results obtained are as follows ; 1. Bottom of position A and B was took the part of the natural fishreef, and 20-40m depth area of a reasonable waters to set up fishreef was 1.43㎢. 2. Position C locating between position A and B was formed to slow inclination from the open sea, where was assumed to waters require to the throng equipment of fishies. 3. Maximum wind velocity of the investigated waters was 18.5m/sec from Oct. 1975 to Sep. 1976, and then drift current was 25.9㎝/sec, depth of frictional influence was 188m.
Validation of chlorophyll algorithm in Ulleung Basin, East/Japan Sea
Sin Jae Yoo,Hyun Cheol Kim,Jeong Ah Lee,Mi Ok Park 大韓遠隔探査學會 2002 大韓遠隔探査學會誌 Vol.18 No.1
The results of our observation in May 2000 indicated that the SeaWiFS algorithm (O`Reilley et al., 1998), which was adopted for OSMI data processing, overestimated the actual chlorophyll values. This was rather unexpected in that there were good reasons to expect that the bio-optical properties of East/Japan Sea belonged to Case 1 water and in such case, the OC2 algorithm would give unbiased estimates of actual chlorophyll a values. In November 2000, a cruise conducted bio-optical surveys in the same area. This time we added HPLC (High Performance Liquid Chromatography) method for measuring chlorophyll a concentration to the standard fluorometric method, which we have been using during the past. Fluorometric method with acidification is known to result in under/overestimation of chlorophyll values in many parts of the world oceans, while it is easier and cheaper than HPLC method. To our surprise, the comparison of HPLC chlorophyll and fluorometric chlorophyll values show that fluorometric values gave an underestimation up to 50%. This error was due to the presence of accessory pigments such as chlorophyll b. Considering this error, our previous result of May 2000 (Yoo et al., 2000) might have to be reinterpreted. Calculation of reflectance at 490 and 555nm, however, indicated that this is not still enough to explain the discrepancies.
Fabrication and Drive Test of a Peristaltic Thermopnumatic PDMS Micropump
Jeong Ok Chan,Park Sin Wook,Yang Sang Sik The Korean Society of Mechanical Engineers 2005 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.19 No.2
This paper presents fabrication and drive test of a peristaltic PDMS micropump actuated by the thermopneumatic force. The micropump consists of the three peristaltic-type actuator chambers with microheaters on the glass substrate and a microchannel connecting the chambers and the inlet/outlet port. The micropump is fabricated by the spin-coating process, the two-step curing process, the JSR (negative PR) molding process, and etc. The diameter and the thickness of the actuator diaphragm are 2.5 mm and $30{\mu}m$, respectively. The meniscus motion in the capillary tube is observed with a video camera and the flow rate of the micro pump is calculated through the frame analysis of the recorded video data. The maximum flow rate of the micropump is about $0.36\;{\mu}L/sec$ at 2 Hz for the zero hydraulic pressure difference when the 3-phase input voltage is 20 V.