응급실에 내원한 환자에서 어지럼증의 원인과 임상양상의 분석

문원식,정경운,위준선,문정미,전병조,김용권,소정일,류진호,허탁,민용일 대한응급의학회 2001 대한응급의학회지 Vol.12 No.3

Background: Recently, The number of patients who have been complaining of the vertigo or dizziness has been increasing due to rapid growth of elderly population and senile disease. The differentiation of dizzy patients is not familiar to most emergency physicians. This study was designed to differentiate true vertigo and to investigate the clinical difference among central vertigo, peripheral vertigo, and other causes of dizziness. Methods: The authors analyzed the cases of 237 dizzy patients who visited the emergency department of Chonnam University Hospital during the recent 2 years. For the base of dizziness, associated past illnesses, severity, nystagmus type, and the causes of central and peripheral vertigo. Results: Female patients were 142(59.9%) and male patients were 95(40.1%). The most common age group was the 6th decade. The origin of dizziness was classified as peripheral cause(25.3%), central cause(32.9%), and others(41.8%). As to nature of the dizziness, the rotatory sense was dominant in peripheral vertigo and the floating sense and blurred vision in central vertigo. Peripheral vertigo was triggered by position change of head and body, and central vertigo by the eye movement. Audiograms I showed that most patients with central vertigo had normal hearing, but 46.7% of thoswith peripheral vertigo had an abnormal hearing disturbance. Nystagmus was more prevalent in peripheral vertigo Conclusion: History taking and physical examination played an important role in the diagnosis of dizzy patients. An important part of the diagnosis of a dizzy patient could be to evaluate the peripheral origin, the central origin and others causes. Because central vertigo may be associated with a significant neurological pathology, spectral radiological studies, including MRI and CT, are mandatory to rule out a devastating brain lesion.

Computer Simulation을 이용한 Skier의 滑降 模形開發에 관한 力學的 考察

鄭成浩,鄭善太,金龍男 公州大學校스포츠科學硏究所 1989 스포츠科學硏究所論文集 Vol.- No.3

As result of computing the speed just before jump, it was 22.6 m/s in the vacuum, 21.6 m/s in the groundfriction, 20.2 m/s in the air resistance and ground friction, in application of the dynamic theory. The difference of the speed, if little, was 1.0-2.4 m/s and the frying distance was 6.6-30 m through compuer simulation. In the step of jump, the vertical speed of jumper was found to be "V_t = 2h/t" by using the model of spring, the frying distance, in the case of "t = 0.12s" (i. e. the flying elevation of 5), was 25m longer, than in 't = 0.21s', and in order to increase the effect of jump. The result of simulation on four kinds of model poses in Fig-5 proved that the pose of d type is the most efficient.

中都市 大學生들의 健康追求行態에 關한 硏究 : 吸煙 및 飮酒實態를 中心으로 With the Viewpoint of Smoking and Drinking Status

鄭善太,權判根,鄭成浩,洪大容 慶尙大學校 1985 論文集 Vol.24 No.2

The survey was conducted on health persuit behavioral patern of 1227 university students in medium city with the viewpoint of smoking and drinking status during the months of April and May, 1985. The main findings were as follows: 1. 40.3%of the male students surveyed were smoking cigarettes. 2. Smoking rates were significantly different by sex, grade, age, specialty and residence, respectively (P<0.01). 3. 84.1 % of smokers were smoking below 1 pack of cigarettes per day and smoking amounts were not significantly different by grade, sex, age, special ty and residence. 4. The duration of smoking were significantly different by grade and sex. 5. The amounts of drinking were significantly different by sex, age, specialty and residence, respectively (P<0.01). 6. The favorite kinds of liquor were significantly different by grade and sex (F<0.01), age and specialty (P<0.05), respectively. 7. "Optimistic prone students" were revealed to be heavy drinker. 8. Students who have high self-esteem scale were revealed to be heavy drinker. 9. The knowledge of health effects of smoking was significantly different between smoker and non-smoke. 10. Smokers were drinking more than non-smokers. 11. The rates of smoking were higher in "pessimistic prone students" than in "optimistic prone students." 12. According to the multiple classification analysis, non variables selected affected on amounts of smoking. 13. According to the multiple classification analysis, amounts of drinking were significantly affected by smoking-or-not, the knowledge of health effects of alcohol, personality and self-esteem variables.

술폰화 폴리스티렌-디비닐벤젠 혼성중합막을 통한 알칼리 금속이온의 전달특성에 관한 연구

선용호,조영일,한정우 연세대학교 산업기술연구소 1991 논문집 Vol.23 No.1

The transport characteristics of alkali metal ions, ?? and ??, through a cation exchange membrane was investigated. The membrane used in this experiment was ?? type sulfonated polystyrene-co-divinylbenzene membrane (K-102, Asahi Kasei Co.). The initial flux of the ion was increased with the increase of both ?? ion concentration and temperature. In this experimental range (pH 0.5∼3.0, temperature 15∼60℃), the initial flux of ?? was found to be from ?? to ?? and that of ?? from ??, ??. The membrane was selective for ?? and the flux ratio of ?? to ?? was about 1.10.

흰쥐에서 말초신경 손상후 뒤뿌리신경절세포의 신경영양인자와 그 수용체의 발현 양상

백선용,양만석,문총석,김봉선,김재봉,김진정 대한해부학회 1999 Anatomy & Cell Biology Vol.32 No.2

一部 銀行員들의 疲勞度 自覺症狀에 關한 調査硏究

鄭成浩,鄭善太,洪大容 慶尙大學校 1985 論文集 Vol.24 No.1

A survey was carried out on subjective symptoms of fatigue of 132 bank clerks (male 77, female 75) in Chin-ju city in order to measure the degree of fatigue caused by wory by questionaire form. The data were analyzed by sex, age and years employed. The results obtained are summarized as follows : 1. General char acteristics of respondents are as follows: For male, the majority was (distributed from the early twenty to late thirty, but for female, early twenty, As for the years employed, 5 years-mor egroup for male and 3-4 years group for female were found to be the majorty. 2. As for the composition of subjective symptoms, there were found I (physical) >Ⅱ (mental) > Ⅲ (neurosensory) type in male, while I>Ⅱ>Ⅲ type in female at both before and aftre work. 3. The lowest percent of complaints were found in25-29 age group for male and 20-24 age group for female . 4. The lowest percent of complaints were found in 3-4 years employed group for male and 1-B years employed group for female. 5. The signifcant correlationships between before and after work were found in physical symptoms for male(P<0.05), while in mental (p<0.01) and neurosensory symptoms(pc<0.05) for female.

CFD 해석을 이용한 막여과 공정 밸브의 개폐시간에 따른 유동 특성

정선용, 이계복 충북대학교 산업과학기술연구소 2018 산업과학기술연구 논문집 Vol.32 No.2

본문 참조

참다래잼의 제조와 품질특성

고정삼,김지용,김용철,강순선 濟州大學校 亞熱帶農業硏究所 1999 亞熱帶農業硏究 Vol.16 No.-

초록 제주산 참다래의 화학적 분석을 통하여 가공적성을 구명하고 잼 생산을 위한 최적 제조조건을 검토하였다. 참다래의 수분 함량은 82.84%이었으며, 당함량은 12.08%로 비교적 높은 편이었다. 가용성고형물은 14.80이었고 산 함량은 1.33%이었으며, 비타민 C 함량은 27.47%/100g로 높은 편이었다. 관능평가에 의한 상품은 원료 300g에 첨가하는 당농도를 60%로 하며, 당을 100%로 하였을 경우 설탕 : 물엿 : 올리고당(60 : 30 : 10)으로 하며, 여 기에 펙틴 1%와 청주 10㎖를 첨가하는 경우 잼의 물성과 변향을 억제하기 위하여 바람직하 였다. 시제품의 관능평가 결과시판하고 있는 유산 제품보다 기호성이 높아 개발가티가 있는 것으로 판단되었으며, 열탕에서 5분간 처리한 시제품은 30℃에서 한달간 저장 중 미생물 증 식이 인식되지 않아 유통 중에 문제가 없을 것으로 보인다. Abstract Chemical analysis and optimum processing conditions of kiwiifruit jam were investigated. Soluble solids, acid content and vitamin C of kiwiifruit was 14.80, 1.33% and 27.47mg/100g, respectively. Moisture content and total sugar of fruits was 82.84% and 12.08%. In processing of kiwiifruit jam, the ratio of sucrose : maltose syrup : oligo sugar (60 : 30 : 10) was the best in addition of sugar source 60%(w/w) in total. Otherwise, the addition of 1% pectin and 10ml of rice wine were recommended for texture and masking of off-flavor. Kiwiifruit jam prepared in this experiment was better than that of commercial other products in sensory evaluation, and microbial growth of this product was not recognized for one month at 30℃ with treatment the products for 5min in boiling water.

볶음보리 추출물의 아질산염 소거인자

도정룡,김선봉,이용우,구연숙,박영호 한국노화학회 1991 한국노화학회지 Vol.1 No.1

술폰화 폴리스티렌-디비닐벤젠 혼성중합막의 제조와 특성에 관한 연구

한정우,선용호,조영일,이광재 연세대학교 산업기술연구소 1991 논문집 Vol.23 No.1

Sulfonated polystyrene-divinylbenzene (PS-DVB) copolymer membranes were prepared using different diluents and varying diluent volume and DVB contents. All membranes were reinforced with Teviron (PVC) cloth. Three different diluents (toluene, cyclohexane, cyclohexanol) were used in the polymerization system. The membranes have been characterized by their swelling ratio, water content, ion-exchange capacity and mechanical strength. The volume as well as kind of diluents, and DVB content influenced these properties. As a result, water content and ion-exchange capacity decreased with increasing DVB concentration. Among diluents, cyclohexanol was the most efficient for building up the highest water content and ion-exchange capacity.