응급의료센터에서 신경색의 조기진단

최경호,오동렬,이원재,박규남,박승현,황두영,김형국,정시경,김영민,김세경 大韓應急醫學會 1998 대한응급의학회지 Vol.9 No.4

To evaluate appropriate diagnostic studies for renal infartion in emergency medical center, we analysed 33 patients of renal infarction treated in this hospital for last 8 years. Eleven patients, 4 trauma associated and 7 aortic disease associated patients were excluded. They are 11 males and 11 females with a mean age of 51 years. Fourteen came to the emergency medical center and seven came to the outpatient department, in the other one patient renal infarction was developed during hospitalization with other disease. On their past history they had hypertension in 9, valvular heart disease in 5, and diabetic mellitus in 4 patients. Abdominal or flank pain was noted in 17 of 22(77%). The other symptoms were vomiting, nausea, fever and so on. On microscopic examination of initial urine in hospital, 5 patients showed more than 10 red blood cells by high power field examination. The mean lactic dehydrogenase level was 1,239 I.U/L(normal range 218-472 I.U/L), while the mean aspartate aminotransferase and mean alanine aminotransferase were 51 I.U/L(normal range 13-36 I.U/L) and 44 I.U/L(normal range 5-33 I.U/L). Abdominal ultrasonography showed positive findings in 5 of 16(31%), of which 3 were confirmed by Doppler ultrasonography. In 18, computed tomography was done and all those showed positive findings of renal infarction(100%). In conclusion, it is important that identify the elevated lactic dehdrogenase level in case of any suspicion about renal infarction and confirm by computed tomography.

직접메탄을 연료전지용 귀금속 산화극 대체촉매의 개발

최재식,윤봉국,하승백,정원섭,이호인 한국공업화학회 2003 응용화학 Vol.7 No.2

Direct Methanol Fuel Cell (DMFC) is based on the technology of Polymer Electrolyte Membrane Fuel Cell. DMFC has several features of environmentally benign generation of electricity and high mobility for portable electronics etc., but its main problem to overcome for commercialization is the high cost of noble metal catalysts. In this study, it was found that the Pt/C catalyst supported on carbon nano fiber had the highest catalytic activity among the catalysts supported on several carbons. The newly developed Pt/C alternative catalyst had higher catalytic activity for methanol oxidation than the Pt/C catalyst supported on Vulcan XC-72.

Browser-embeded 모델에서의 연속분포HMM 음성인식

최승호,김철,최광국 東新大學校 工業技術硏究所 1999 工業技術硏究 Vol.5 No.-

In this paper, we discuss on an implement issue a speech recognition system based on the continuous distribution HMM(Hidden Markov Model) and Browser- embeded model. The structure of Browser-embeded model is developed for the speech analysis, processing and recognition flow on the Web. Client sends the speech information which is made by end-point detection of speech and estimation of MFCC(Mel Frequency Cepstral Coefficient) using java applets to a server through sockets. A server sends text of speech recognition using the continuous distribution HMM and trained database to client over the Internet. In consequence, the recognized text back is displayed in the client system.

Agrobacterium을 이용한 고추의 형질전환체계개발

최근원,박영두,박승국,전영주,유일웅,김인태,백운돈 경희대학교 생명자원과학연구원 1997 硏究論文集 Vol.18 No.-

본 실험은 고추의 형질전환체 선발을 위한 최소의 항생제농도를 결정하고 그 결과를 이용하여 형질전환체를 유기하고 효율을 최대화하기 위하여 수행한 바 그 결과는 다음과 같다. 1. 항생제 감응성 검정결과 kanamycin 40㎎/ℓ와 hygromycin 20 ㎎/ℓ에서 신초형성이 완전히 억제되었다. 2. Agrobacterium 제거에 사용되는 carbenicillin과 cefotaxime 처리시 재분화에 아무런 영향을 미치지 않았으며 cefotaxime 200㎎/ℓ 처리에서는 무처리구보다 신초형성이 더 활발하였다. 3. 회복친인 135Q와 276F에서는 형질 전환시 높은 재분화율을 보였으나 형질전환율은 각각 10%와 11.1%의 낮은 빈도를 보였다. 4. 재분화된 신초들을 대상으로 histochemical GUS assay를 실시한 결과 부분적으로 푸른발색이 확인되었다. 5. GUS활성을 보인 신초들에 대한 NPTⅡprimer를 이용한 PCR검정에서 NPTⅡ 유전자의 존재가 확인되었다. A transformation system using Agrobacterium tumefaciens was developed with different genotypes of hot peppers (Capsicum annuum). Four antibiotics commonly used in Agrobacterium-mediated transformation were tested for their effects on shoot regeneration. Shoot induction was completely inhibited by kanamycin at 40㎎/ℓ and hygromycin at 20㎎/ℓ or higher, but not by carbenicillin and cefotaxime. Cotyledon explants of hot peppers were cocultivated with Agrobacterium turnefaciens LBA4404 which carries a binary. vector pBI121 harboring the neomycin phosphotransferase, type Ⅱ (NPT Ⅱ) gene and β-glucuronidase (GUS) gene. For selection of transformed cells, 40㎎/ℓ kanamycin were used because the sensitivity test showed that 40㎎/ℓ kanamycin completely inhibited shoot induction from nontransformed cells. Histochemical GUS assay showed the presence of the GUS gene and PCR analysis confirmed the NP TⅡ gene was integrated. Transformation frequency was about 10.0% and 11.1% of total regenerants from 135Q and 276F, respectively.

性別 및 年齡에 따른 體格과 體力의 特性과 變化에 關한 縱斷的 硏究 Ⅰ : 體育專攻 大學生을 中心으로 Emphasised on College Men of Physical Education

金尙國,姜東洹,金昇一,徐再均,金耕知,孫斗玉,鮮于攝,崔榮烈,尹宇相,金亨燉,方永鎭,李錫元 慶熙大學校 體育科學大學 1988 體育科學論叢 Vol.- No.1

The purpose of this study was to compare the characterists and change in physique and physical function by college student of physical education major(287males and 40 females of age groups ranging from 18 to 26). The results were as following; 1) The characteristics of physique and physical function by sex and age. ① The male group of 18yrs old showed higher values in Height, Weight, Upper Limb Length, Strength, Flexibility, and Vital Capacity than any other groups, but female group showed lower values in Height, Weight, Chest Girth, Lower Limb Length, Thigh, Girth, Calf Girth and all of the Physical function. ② The male group of 19yrs old showed high values in power and Agility, then female group showed in Strength and Flexibility. ③ The male group of 20yrs old showed the lower values in Weight, Waist Girth, Upper Limb Length, Fore Arm Girth, Thigh Girh.Calf Girth, Vital Capacity, and female group are very lowed in Upper Arm Lenght, Fore Arm Length, Skin Fold Thickness and 5 minute Run. ④ The male group of 23yrs old showed the high values in Upper Arm Girth, Fore Arm Girth and Balance, and then female group higher in Weight, Chest Girth, Waist Girth, Upper Arm Girth, Fore Arm Girth, Thigh Girth, Power, Shuttle Run, Balance and vital capacity than any other age Groups. ⑤ In male group, Chest Girth, and Blood Pressure were significantly related, and Side Step and Trunk Extension were nagatively related to the age at 0.1% level, and then in female group, Sargent Jump, Standing Long Jump and Vital Capacity were showed a significantly related at 0.5% level. 2) The difference of physique and physical function between male and female by age. ① Everage difference in whole physique items except skinfold thickness was 9.8%, and that 21.1% in all of physical function except Trunk Flextion between male and female group subjects. ② About the ages, the 18yrs old male group showed the 22.8% higher values of 26 items, but 22yrs old male group were about 12.2% in 23 items, thus it is very lower than any other groups. 3) The difference of physique and physical function between General group and physical education group in age-matched. ① In the physique male physical education groups showed about 7% higher in Weight, Chest Girth, Upper Limb Length, Upper Arm Girth, Thigh Girth, and female group showed about 7% higher in Weight and Upper Limb Length. ② In the physical function, Trunk Flextion, 5 minute Run, and Blood Pressure(Diastolic) were about 8% high values in whole group, and female group showed about 8% higher in Standing Long Jump, Shuttle Run, and Trunk Extension. ③ In 22yrs old male and female physical education group were very dominated in physique and physical function than the other age group against the general group.

응급센터에서 기관내 삽관을 시행하지 않은 호흡곤란 환자의 동맥혈 이산화탄소분압과 호기말 이산화탄소분압의 연관성분석

김형국,박승현,오동렬,박규남,이원재,황두영,최승필,이운정,정시경,김세경 大韓應急醫學會 1998 대한응급의학회지 Vol.9 No.4

Background: The end-tidal carbon dioxide tension(ETCO₂) is defined as a partial pressure of carbon dioxide at the end of an exhaled breath. The purpose of this study is to determine the correlation between ETCO₂and arterial carbon dioxide tension(PaO₂) in nonintubated patients with respiratory distress in emergency department(ED). Methods: A prospective non-blind study was performed in ED of our university hospitals. Participants included all nonintubated adult patients with respiratory distress requiring arterial blood gas analysis. ETCO₂was measured with a capnography monitor during tidal volume breathing. ETCO₂were recoreded at the time of arterial blood gas sampling. The correlation between ETCO₂and PaCO₂was analyzed in all patients and in subgroups by simple linear regression. Results: Sixty patients were enrolled. In all patients, ETCO₂was 5.72mmHg lower than PaCO₂and correlated well with PaCO₂(r²=0.716). ETCO₂correlated best with PaCO₂in patients who were either acidotic or non-smoking. Conclusion: ETCO₂correlate well with PaCO₂in nonintubated patients with respiratory distress in ED. ETCO₂may be sufficient to reflect PaCO₂in selected patients and obviate the need for repeat arterial blood gas determination.

반도체 패키징 검사장비의 구조 동특성 개선에 관한 연구

노승국,박종권,이혜진,최석우 한국공작기계학회 2009 한국공작기계학회 춘계학술대회논문집 Vol.2009 No.-

The dynamic performances, such as natural frequency, damping and dynamic compliance are playing bigger roles for high speed inspection equipments for the modern semiconductor production systems. In this study, the dynamic characteristics of the prototype of a inspection system was has been evaluated using ANSYS based modal and harmonic analysis. The inspection equipment need to be operated in high acceleration over 1G with short settling time. The computation and experiment shows that the supporting frame structure of the machine should have enough dynamic stiffness to reduce residual vibration caused by movement of the stages.

기하학적 형태의 옥상 녹화 시스템에 관한 연구

서승직,이충국,최원기 대한건축학회 2003 대한건축학회논문집 Vol.19 No.10

Modern cities are confronted with a serious environmental damages such as destruction of ecosystem and climate change resulting from rapid urbanization. It has been reported that the rooftop planting system (or tree planting around a building) could solve the problems relating to greenhouse effect, energy-resource depletion, air pollution, urban inundations and underground water as well as restoration of environmentally-friendly cities. Therefore, we attempted to apply a new roof planting system, which is a geometrical shape on the rooftop system. In this paper, experimental study has been performed during the summer and the winter through the five different types of roof planting models. As a result, this experiment shows that the geometrical shape is better than existing rooftop plane of system performance. Especially, we verified that new roof planting system with furrow shape have the advantage to previous predicted problems, namely, soil weight, surface, thermal performance, drainage, isolation and evaporation of soil. Finally, additional studies are required to the considerable factors for practical use.

性別 및 年齡에 따른 體格과 體力의 特性과 變化에 關한 縱斷的 硏究Ⅱ : Emphasised on College Men of Department of Physical Education 體育專功 大學生을 中心으로

金尙國,姜東洹,張周鎬,金昇一,徐再均,金耕知,孫斗玉,鮮于攝,崔榮烈,尹宇相,金亨燉,方永鎭,朴英震,柳在忠 慶熙大學校 體育科學大學 1989 體育科學論叢 Vol.- No.2

The purpose of this study was to compare the characteristics, change in physique and physical function of college students majoring physical education and Taekwondo (454 males and 64 females of age groups ranging from 18 to 26). The results are as following: 1. The male group of 23yrs old in physical education showed highest values in 7 items(Weight, Chest Girth, Fore Arm Girth, Thigh Girth, Calf Girth, Scapular Skinfold Thickness and Suprailiac Skinfold Thickness). 2. In the Physical function, the male group of 18yrs old showed highest values in Power, Flexibility, and then 21yrs old at Back Strength, Vital Capacity, and 23yrs old at Grip Strength, and 25yrs old at Blood Pressure, respectively. 3. In the physique, the male group of 22yrs old showed highest values in Weight, Chest Girth, Thigh Girth, Calf Girth, and then 24yrs old Upper Arm Girth, Fore Arm Girth, and 19yrs old at Height, Upper Limb Length, respectively. 4. In Physical Function, the 22yrs old showed highest values in Back Strength, Vital Capacity, and then 23yrs old at Side Step, Trunk Extension, but 18yrs old showed lower Values in Grip Strength, Side Step, Vital Capacity and Blood Pressure. 5. The female group of 22yrs old showed highest values in 8 items(Height, Sitting Height, Waist Girth, Upper Limb Length, Lower Limb Length, Skinfold Thickness), and then 18yrs old at 5 items (Weight, Upper Arm Girth, Fore Arm Girth, Thigh Girth, Calf Girth), respectively. 6. In the physical function, the 22yrs old showed highest Values in Grip strength, Back Strength, Power, 5 Minute Run, and 18yrs old at flexibility, Harvard Step Test, respectively. 7. In the change of the physique for two years(1988-1989) in the male group, majoring Physical education the 22yrs old showed increase in 4 items, and the 20yrs old in 3 items, but 18yrs old showed decrease in 3 items. 8. In the change of the physical function for two years in the male group, the 20yrs old showed increase in 4 items, and the 21, 25, 26yrs old in 3 items, but the 19yrs old showed decrease in 6 items, and 18, 22 yrs old in 5 items, respectively. 9. The change of the physique for two years in all female group, of 18, 19, 20, 21yrs old showed increase in 11 items except Skinfold Thickness. 10. In the change of physical function for two years in female group, the 18yrs old showed increase in 3 items, and then 20yrs old in 5 items, but 19, 22yrs old decreased 12 items, respectively. 11. The highest significant difference in physique between male and female was found in weight(mean Value 17.5%), and the lowest difference was found Thigh Girth, Calf Girth(1,3%), Upper Limb Length, Lower Limb Length(2.5%). 12. The Highest difference in physical function was Strength (mean Value 40%), Vital Capacity (33%), Power(22%), but Lower Trunk Flexion, Foot Balance(3.4%). 13. In the difference of Physique and physical function between physical education major and taekwondo major, the physical education showed higher values in skinfold Thickines (mean Value 16.5%), Weight, Waist Girth(4.7%) and Strength(33%), Endurance(5.6%), but subjects majoring Taekwondo showed higher values in Flexibility and Foot Balance. 14. In all male groups, Waist Girth, Scapular Skinfold Thickness, Back Strength, Sargent Jump, Trunk Extension and Diastolic Blood Pressure were showed a significantly related at 0.001 level.

體操 吊環競技에 있어서 十字懸垂時主動筋肉에 對한 트레이닌의 效果에 관한 硏究 : Fmphasized on Muscular Strength, Electromyogram

兪承熙,崔永根,金尙國 慶熙大學校 1987 論文集 Vol.16 No.-

The purpose of the study was to find the effects of 12 weeks the straigth Body Cross on ring training program. The ten male subjects majored in gymnastics. The Criterion variable were muscular strength and electromyogram. The results are as following; 1. As for the stationary enduring time on ring, a growth was revealed from before training test M. 24.47+1.26 sec to 12 weeks training test M 3.63±1.09 sec. 2. During the stationary enduring time on ring, the mean values were 1.27±0.53 mv for the Teres, 1.14±0.34mv for the Triceps, 1.06±0.69mv for the Latissimuss, 1.02±0.43mv for the pectoralis, 0.02±0.58mv for the Biceps and 0.52±0.18 mv for the Trapezius. 3. The muscle of chiefly used in the straight Body Cross on ring were found out in the Teres, Triceps. 4. Stationary enduring time on ring was long according as it was increased of voltage for the muscle chiefly. 5. Arm strength flexion lefft right, Arm strength Extension left right, Grip strength left right and shoulder Arm strength were increased in training of 12 weeks. 6. The Correlation Coeffficient be tween stationary enduring time on ring and mucular strength per body weight were revealed as the certainly correlation.