http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
유광종,이성용,성영휘 國立金烏工科大學校 産業技術開發硏究院 2002 産業技術開發硏究 Vol.18 No.-
A biped walking robot is constructed and used to develop algorithms for noble tasks as climbing stairways and kicking a ball. The constructed biped robot system consists of four pat ; a host controller, a mechanical robot body, a CCD camera, and a local controller. An algorithm for climbing stairways is developed and applied to the biped robot. Experimental results show that the robot can climb stairways in a statically stable fashion with the developed algorithm. An algorithm for camera calibration with minimum nonlinear distortion is adopted to acquire three-dimensional distance from image data. The biped robot can kick a ball by using the acquired distance information.
( Whee Sung Son ),( Jae-woo Cho ),( Nam-ryeol Kim ),( Jun-min Cho ),( Nak-jun Choi ),( Jong-keon Oh ),( Hanju Kim ) 대한외상학회 2022 大韓外傷學會誌 Vol.35 No.1
Purpose: Percutaneous iliosacral (IS) screw fixation for pelvic ring injuries is a minimally invasive technique that reduces the amount of blood loss and shortens the procedure time. Moreover, two unilateral IS S1 screws exhibit superior stability to a single IS screw and are also safer for neurological injuries than an S2 screw. Therefore, this study aimed to evaluate fixation using percutaneous two unilateral IS S1 screws for pelvic ring injuries and its subsequent clinical outcomes. Methods: We retrospectively reviewed 38 patients who underwent percutaneous two unilateral IS S1 screw fixation for pelvic ring injuries. The procedure time, blood loss, achievement of bone union, radiological outcomes (Matta and Tornetta grade), and postoperative complications were evaluated. Results: The mean procedure time, hemoglobin loss, bone union rate, and time to union were 40.1 minutes (range, 18-102 minutes), 0.6 g/dL (range, 0.3-1.0 g/dL), 100%, and 153.2 days (range, 61-327 days), respectively. The Matta and Tornetta grades were excellent, good, and fair in 24 (63.1%), 11 (28.9%), and three patients (7.9%), respectively, and the postoperative complications were S1 screw loosening, widening of the symphysis pubis (2.3 and 2.5 mm), lumbosacral plexopathy, and S1 radiculopathy in one (2.6%), two (5.3%), one (2.6%), and one patient (2.6%), respectively. However, all neurological complications recovered spontaneously. Conclusions: Percutaneous two unilateral IS S1 screw fixation was useful for treating pelvic ring injuries. In particular, it involved a short procedure time with little blood loss and also led to 100% bone union and good radiological outcomes.
( Whee Sung Son ),( Oog-jin Shon ),( Dong-chul Lee ),( Sang-jin Park ),( Han Seok Yang ) 대한슬관절학회 2017 대한슬관절학회지 Vol.29 No.3
Purpose: To assess the efficacy of open debridement and polyethylene exchange (ODPE) combined with proper antibiotic therapy in strictly selected patients with infection after total knee arthroplasty (TKA) and analyze factors associated with treatment failure. Materials and Methods: From January 2010 to January 2014, 25 cases that underwent ODPE under the diagnosis of infection within four weeks after TKA or acute hematogenous infection within five days of symptom onset were reviewed in this study. Results: Treatment was successful in 22 out of 25 cases (88.0%). Factors associated with failure were accompanying infection (periprosthetic infection in the ipsilateral foot, cervical parotid abscess, and masticator space abscess) and diagnosis of rheumatoid arthritis (RA) before TKA. Resistant bacteria did not entail a risk. On clinical results, the mean postoperative Lysholm score and Korean Knee score were 81.4 and 79.4, respectively, the knee range of motion was 115.4°±12.9°, and duration of hospitalization was 32.3±8.4 days. On radiographic results, 3.47±1.56 mm joint line elevation and a valgus change of 0.61°±2.35° in knee alignment were observed. Conclusions: ODPE combined with appropriate antibiotics therapy could be a useful treatment method for infection after TKA if the procedure is performed within a symptom duration of five days or less in the absence of accompanying infection in patients whose indication for TKA was not RA.
Oral Delivery of Probiotics Using pH-Sensitive Phthalyl Inulin Tablets
( Whee-soo Kim ),( Chong-su Cho ),( Liang Hong ),( Geon Goo Han ),( Bum Ju Kil ),( Sang-kee Kang ),( Dae-duk Kim ),( Yun-jaie Choi ),( Chul Sung Huh ) 한국미생물 · 생명공학회 2019 Journal of microbiology and biotechnology Vol.29 No.2
Probiotics show low cell viability after oral administration because they have difficulty surviving in the stomach due to low pH and enzymes. For the oral delivery of probiotics, developing a formula that protects the probiotic bacteria from gastric acidity while providing living cells is mandatory. In this study, we developed tablets using a new pH-sensitive phthalyl inulin (PI) to protect probiotics from gastric conditions and investigated the effects of different compression forces on cell survival. We made three different tablets under different compression forces and measured survivability, disintegration time, and kinetics in simulated gastric-intestinal fluid. During tableting, there were no significant differences in probiotic viability among the different compression forces although disintegration time was affected by the compression force. A higher compression force resulted in higher viability in simulated gastric fluid. The swelling degree of the PI tablets in simulated intestinal fluid was higher than that of the tablets in simulated gastric fluid due to the pH sensitivity of the PI. The probiotic viability formulated in the tablets was also higher in acidic gastric conditions than that for probiotics in solution. Rapid release of the probiotics from the tablet occurred in the simulated intestinal fluid due to the pH sensitivity. After 6 months of refrigeration, the viability of the PI probiotics was kept. Overall, this is the first study to show the pH-sensitive properties of PI and one that may be useful for oral delivery of the probiotics.
Chest Roentgenographic Findings of Thymic Size and Shape in Respiratory Distress Syndrome
Sung, Ki Yeal,Kim, Jong Woo,Oh, Young Ho,Park, Seog Hee,Bahk, Yong Whee CATHOLIC MEDICAL CENTER 1984 Bulletin of the Clinical Research Institute Vol.12 No.1
Thymic size can be affected by both exogenous and endogenous glucocorticoids. Development of the repiratory distress syndrome (RDS) is influenced by adrenal cortical function. Thus, thymic size in RDS is considered to be enlarged due to decreased adrenal cortical function. To find whether the presence of RDS correlates with the thymus, the size and shape of the thymus were evaluated in the radiographs of premature infants with RDS, without RDS and normal infants. The subjects consisted of chest radiographs of Korean premature infants, 120 with RDS, 60 without RDS, and 60 of normal infants taken at the Department of Radiology, Our Lady Mercy Hospital during the period of 62 months since January 1978. Relatve size of the thymus was determined by cardiothymic/thoracic ratio (CT/T ratio). Grading and location of the thymic prominence as well as incidence of the shape were examined. And all the relations among the radiographs of the three groups were analyzed. The results were as follow: 1. The CT/T ratio of premature infants with RDS was singificantly greater than that of other groups(P<0.02). 2. The incidence of bilateral thymic prominence was mere frequent in premature infants with RDS than in other groups(P<0.05). 3. The frequency of thymic prominence was feater in the right than left side in all groups(P<0.05). 4. As in the shape of the thymus, a rounded type was most frequent, and a triangular type was least frequent in all groups. 5. Incidence of RDS was very low (9.8%) when the CT/T ratio was below 0.3 and it was very high (90.9%) when the CT/T ratio was above 0.49.
Breeding of the Early Pear Cultivar ‘Gamro’ (Pyrus pyrifolia) with High Quality for Summer Season
Whee Cheon Kim,Hae Sung Hwang,Il Sheob Shin,Yong Uk Shin,Don Kyun Lee,Hyun Mo Cho 한국원예학회 2006 Horticulture, Environment, and Biotechnology Vol.47 No.3
‘Gamro’ pear originated from a cross ‘Niitaka’ and ‘Shinsui’ made in 1986 at National Horticultural Research Institute, Rural Development Administration, Suwon, Korea was preliminarily selected as ‘86-2-51’ in 1992 for its high fruit quality with good edible characteristics for summer season. After regional adaptability test at nine sites for 4 years from 1993 to 1996 as ‘Wonkyo Na-16’, it was finally selected in 1996. It blooms 2 days earlier than ‘Shinsui’ on April 1 during 1992?1996. ‘Gamro’ is vigorous in tree growth and upright-spreading in tree habit. Chemical control of scab (Venturia nashicolia) is necessary at optimum time, since ‘Gamro’ is susceptible to the disease like ‘Shinsui’. ‘Gamro’ produces little pollen grains with cross-incompatibility with ‘Minibae’ and ‘Sunhwang’. Therefore, it cannot be used as a single pollinizer for almost all cultivars. Optimum fruit harvest time is August 27, 4 days later than ‘Shinsui’ during 1992?1996 at Suwon (37˚15'N, 127˚00'E). Its fruit is roundish oblate in shape and yellowish green in skin color. Average fruit weight is 310 g and soluble solids content is 13.8˚Brix. Fruit flesh is very juicy and has negligible grit.