특발성 자발성 신장 파열 1예

윤재철,김원,조규종,홍정석,이미우,장성은,오세현,임경수 대한응급의학회 2001 대한응급의학회지 Vol.12 No.4

Primary aldosteronism is a syndrome characterized by hypertension, hypokalemia, suppressed plasma renin activity, and elevated serum aldosterone levels. Conn first described it 1955 in association with adrenal cortical adenoma(Conn's syndrome). Today, it can be divided into at least six distinctive sub-groups. The diagnosis of primary aldosteronism is usually suspected when the patient presents with poorly controlled hypertension with hypokalemia. The main issues in the evaluation of primary aldosteronism are to differentiate an adenoma from hyperplasia and to localize the adenoma. Basic hormonal studies and computed tomographic(CT) scanning can be used effectively for that differentiation. An adenoma is one of a few potentially curable forms of hypertension, and it is best treated by removing the adrenal tumor. We experienced a case of a typical adrenal adenoma. The patient was a 37-year-old male who had experienced in both his legs over a period of several days a weakness due to hypokalemia. He was diagnosed using basic hormonal studies and adrenal CT scanning. After, he received laparoscopic adrenalectomy and was discharged with improved condition.

비엔나협약규정 신호체계와 우리나라 신호체계에 관한 비교연구

장건영,이정윤,김진태,장명순 東亞大學校 建設技術硏究所 2004 硏究論文集 Vol.27 No.2

20세기 말 국제사회는 정치 경제적인 교류 · 협력의 증가에 따른 국제 경제활동 빛 여가활동범위의 확대로 국가간 방문교류가 증가했다. 1968년 국제연합 (UN, United Nation)은 국제도로교통을 활성화하고 도로안전의 증진을 위하여 도로교통에 관한 국제협약인 도로교통협약(Convention on Road Traffic)과 표지 및 신호체계협약(Convention on Road Signs and Signals)을 선포하였다 2002년 10월 기준으로 표지 벚 신호체계협약에는 50개국이 가입하였고 도로교통협약에는 60개국이 가입한 상태이다. 국내에서는 도로교통에 관한 이 국제협약이 ‘비엔나협약’이라고 통칭되고 있으며 1968년에 버엔나협약 제정시 승인 서명만 했을 뿐 비엔나협약에 가입하지 않았다. 이에 본 연구에서는 비엔나협약의 신호체계와 극내 신호체계를 비교하여 (1) 그 차이점을 분석하고, (2) 비엔나협약 표지 빛 신호체계협약 가업을 가정시 유발되는 문제점에 대한 개선사항에 대해 분석하고자 하였다. 분석결과 차량 신호등의 형태 및 가변형 가변등의 형태 녹색등 황색등 적색등의 동일 색의 화살표시등으로의 교체 가능성 여부, 녹색등화 적색등화 황색등화의 의미, 적색등화 점멸의 의미, 화살표시등의 등화, 녹색등과 적색 및 황색등과의 동시 등화 운용여부 등에서 차이점이 있는 것으로 분석되었다. 또한 비엔나협약 표지 및 신호체계협약 가업을 가정시 유발되는 문제점에 대한 개선사항으로는 (1) 도로교통법의 적색신호 및 황색신호 시 우회전허용 또는 비보호 우회전 허용에 관한 내용의 검토, (2) 국내에 현재 운영중언 4색등의 사용을 금하고 직진 및 좌회전 두 개의 전용 신호등으로 구분한 신호등 재설치 및 이에 따른 국내 지역제어기 교체 검토 빛 새로운 지역제어기의 운영 소프트웨어 개발 검토, (3) 가변형 가변등의 가변차로 전환 신호기의 교체 검토, (4) 도로교통법에서의 적색신호등의 점멸에 관한 내용의 검토, (5)도로교통법에 화살표시등에 대한 법규정 신설에 관련된 내용 검토 및 현장에서 운영되고 있는 하향 황색 화살표시의 방향을 상향으로 전환에 관한 검토, (6) 도로교통법에 자전거 전용신호등에 대한 법규정 신설에 관련된 내용 검토, (7) 비엔나협약 표지 및 신호체계협약에 따라 수정되는 신호체계에 대한 기존 운전자 재교육의 필요성 검토가 필요한 것으로 분석되었다.

현장측정에 의한 공기조화기 에어필터의 성능 평가

정용호,박병윤,손장열 대한건축학회 2004 대한건축학회논문집 Vol.20 No.7

Air filters of air conditioning system play a main role in improving indoor air quality. However there is not enough information about air filters and any official maintenance standards or guidelines for air filters in Korea. The aims of this study are proposal for air filter test methods after installation and basic data about air filter maintenance guidelines or standards. In this study, arrestances, pressure losses and microorganisms between the upstream and the downstream of air filters were measured with digital dust indicators, a micro manometer and blood agar plates. Measurements were conducted before and after washing out pre filters and outdoor air untake ratio varied between 10%, 20% and 30% under actual operating conditions. The results of this study is as follows. Arrestance increased depending on whether the input of outdoor air was added. However some cases did not follow the trend. Pressure loss decreased depending on whether the input of outdoor air was added to AHUs which have built-out type return fans and vice versa in the built-in type. In contrast, the colony counts of microorganisms increased in the downstream of air filters. The rates of increase dropped depending on the addition of the input of OA. Arrestance increased, pressure loss decreased and the rates of increase of microorganisms dropped after washing out prefilters. Medium filter replacement is the main factor for arrestance, prefilter replacement or washing is the main factor for microorganisms but the range of fluctuation in differential pressure was hard to recognize as 1∼4mmAq. As for the results, proper maintenance for air filters, periodical washing out prefilters are important and development air filter performance test methods, standards or guidelines of dust concentration and microorganisms in AHUs after installation are required.

한랭노출과 고혈압의 연관성

장태원,김윤규,윤동영,이창희,홍영습,신해림,정갑열,김준연 大韓産業醫學會 2001 대한직업환경의학회지 Vol.13 No.4

Objectives : This study was carried out to suggest preventive methods for hypertension in cold-exposed workers. Methods : In 11 refs·iteration industries, 68 workers working in refrigerated areas more than one time per day were selected as the exposed group, and 68 workers not exposed to cold were selected as the control group. We interviewed the subjects with a questionnaire covering occupational history, and conducted clinical and laboratory tests including measurements of blood pressure and core temperature. Results : The systolic blood pressure in the exposed group(130.0±13.3 mmHg) was significantly higher than that recorded In the control group(118.3±12.1 mmHg), as was the diastolic blood pressure in the exposed group(82.7±8.5 mmHg) versus the control group(77.4±8.7 mmHg). The core temperature in the exposed group(36.1±0.7℃) was significantly lower than that experienced in the control group (36.4±0.5℃). In logistic regression analysis, age, cold exposure severity and milk intake were significant variables, with odds ratios of 5.204(95 % CI 1.440∼18.812), 2.674(95 % CI 1.080∼6.618), and 0.364(95 % Cl 0.141∼0.942) , respectively. Conclusions : Our study suggests that cold-exposed workers have higher a higher risk of hypertension, and that their core temperature is lower. Risk factors affecting hyper-tension of cold-exposed workers include age, cold exposure severity and milk intake. For the prevention of hypertension, cold-exposed workers should minimize cold-exposure time as much as possible.

대학생의 전공에 따른 유행 동조성, 혁신성, 의복가치 차이에 관한 연구

장정임;윤지원;김수영;이규혜 한양대학교 2005 韓國 生活 科學 硏究 Vol.25 No.1

A change in economic and social environment has brought lots of changes in lifestyles and values of onsumers. This paper presents fashion conformity, innovativeness and clothing values of college students according to their academic majors. Respondents were 181 undergraduate students with diverse majors. The survey was conducted using a questionnaire designed to measure fashion conformity, innvativeness and utilitarian/hedonic clothing values. Seventeen items measuring fashion conformity and innovativeness and thirty six items measuring clothing values were adopted from existing studies. Chi-square, ANOVA, and multiple comparisons of means were conducted. Students were clustered into three groups of majors: Engineering/NaturalScience/Information majors (ENI), Business/Social/Humanity (BSH) majors and HumanEcology/Art/PhysicalEducation (HAP) majors. HAP majors were more innovative than ENI majors. Significant differences were found in hedonic and utilitarian aspects of clothing values. HAP majors had higher level of novelty/fun/attraction, fashion consciousness and social appraisal sensitivity dimensions. ENI majors showed higher level of comfort seeking among clothing values. No significance was found in clothing confidence, mix and match, economy, utility and handling dimensions of clothing values across different groups of majors. Results of this study imply that the consumer group according to a major has relation to fashion conformity, innovativeness and clothing values.

m-VoIP 서비스에서의 망 중립성에 대한 법적 검토

장윤정 이화여자대학교 법학전문대학원 2012 Ewha Law Review Vol.2 No.2

Each year the number of Internet subscribers in Korea increases exponentially. As a result, as for Internet service, which began regularly more than ten years before, Korea came to boast the world’s highest Internet penetration rate. So, discussions are required for a solution of various problems occurred with rapid Internet environmental changes. In the United States, the concept of network neutrality was discussed while amending the Communication Act of 1996. However, there has been on hiatus in provisions, caused from negative views on network neutrality and a variety of problems due to conflict of interest. It’s also true in Korea. Recently, beyond the traditional wired Internet services, with development of wireless Internet markets made by spread of smart phone, introduction of net neutrality is a hot topic of discussion in the wireless Internet service. The m-VoIP service, offered through a wireless network with wireless Internet service, is the most controversial service in the wireless Internet network neutrality. Therefore, through such an issue, it’s regarded to be possible to identify a point of future discussions on network neutrality. This paper intends to examine network neutrality of the existing and that of m-VoIP service from a legal point and review the relevant cases. 우리나라는 인터넷 가입자의 수가 매년 기하급수적으로 증가하여 이제 세계 최고의 인터넷 보급률을 자랑하게 되었고, 이러한 빠른 인터넷 환경 변화를 통해 나타난 다양한 문제들의 해결 방안에 대한 논의가 필요하게 되었다. 미국에서 망 중립성이라는 개념이 1996년 통신법 개정 과정에서 논의된 이래 망 중립성을 규정화하려는 작업이 계속되고 있으나, 이에 대한 부정적 시각과 다양한 이해관계의 충돌 문제로 인하여 규정에 난항을 겪고 있으며, 이는 우리나라에서도 다르지 않다. 최근에는 기존의 유선 인터넷 서비스를 넘어 스마트폰 보급으로 인한 무선 인터넷 시장의 발달로 인하여, 무선 인터넷 서비스에도 망 중립성 도입에 관한 논의가 뜨겁게 진행되고 있다. 그 중 m-VoIP 서비스는 무선 인터넷의 망 중립성에서 가장 논란이 되고 있는 서비스이므로, 이 이슈를 통해 장차 망 중립성에 관한 향후 논의에 대해 파악할 수 있을 것이라고 본다. 본 논문에서는 기존의 망 중립성과 m-VoIP의 망 중립성을 법적인 관점에서 검토한 뒤, 관련 사례를 살펴보고자 한다.

항진균물질을 생산하는 Streptomyces fimbriatus AF21-3의 분리 및 동정

장주현,김정완,이우윤,윤영준,이경림,김승곤,이태수 인천대학교 2000 基礎科學論文集 Vol.11 No.1

Actinomycetes were isolated from soil to find new antibiotics. An active antimicrobial compound was isolated from the culture filtrate of Actinomycetes AF 21-3. The Actinomycetes strain which showed strong antifungal activity against Candida tropicalis and Microsporum gypseum was identified as Streptomyces fimbriatus and named as Streptomyces fimbriatus AF 21-3.

지속적 식물상태(PVS)에 관한 의료법학적 고찰

김장한,이정빈,이윤성 大韓法醫學會 1999 대한법의학회지 Vol.23 No.1

This treatise summarizes the medical facts about the persistent vegetative state(PVS) and the associated issues. In August 1998, the opinions of the 380 neurologists and the 1007 neurosurgeons are inquired about the diagnostic criteria of PVS, the degree and the withdrawal of treatment on PVS patients. Theresponse rate is 18,8%. The diagnostic criteria of PVS is determined by the items approved above 50% of responses. (1) no evidence of cerebral function and an inability to interact with visual, auditory stimuli and follow commands.(2) maintaining the respiratory function with spontaneous respiration and normal respiratory pattern. (3) spontaneous eye opening and eye ball movements without sustained tracking. (4) variably preserved brain stem reflexes. (5) presence of sleep-wake cycles. (6) (1)-(5) symptoms should be persist for 6 months after the development of vegetative state. (7) the diagnostic criteria of PVS should be applied more than 3 times during the minimum observation period. (8) this diagnostic criteria of PVS could be applied to adults over 7 ages. As to the degree of treatment, nasogastric tube feeding and air-way keeping through the tracheostomy are approved over 90% . Also antibiotics can be used in infection. As to the withdrawal of treatment, do not resuscitate order of patient's family is accepted by 46.1% in an emergency condition like cardiac arrest. But discharge against medical advice by the patient's family is accepted by 73.1% in non-emergency condition. In the case of neonates, parents' decision is more determinative than any other thing.

침대평판형 전극에서 자계가 정극성 직류 코로나방전에 미치는 영향

박재윤,김익균,정장근,김정달,박상현 慶南大學校 附設 工業技術硏究所 1999 硏究論文集 Vol.17 No.-

본 연구실에서 실시한 자계가 인가된 다중 침대평판형 플라즈마 반응기에서 연소가스(NOx,SO₂)의 제거 효율에 관한 실험의 결과에서 자계를 인가한 경우의 제거 효율이 자계를 인가하지 않았을 때 보다 높은 것으로 나타났다. 따라서, 본 연구에서는 이와 같은 실험결과를 바탕으로 자계가 코로나 방전에 미치는 영향을 근본적으로 조사하기 위해 침대평판형 전극을 구성하여 정극성 직류전압을 인가하고 이때 형성된 전계방향과 직각방향으로 자재를 인가한 경우와 인가하지 않은 경우의 코로나방전 특성을 측정하고 분석하였다. 실험결과, 자계를 인가한 경우가 인가하지 않은 경우보다 파괴전압이 높고, 방전전류가 작으며, 방전영역이 넓은 것으로 나타났다. 또한 자속밀도가 증가함에 따라 절연파괴전압이 선형적으로 증가하였다. The effect of magnetic field on NOx and SO₂ removal characteristics from a combustion flue gas has been experimentally investigated for a DC corona discharge reactor with a multipoint-plate geometry. NOx and SO₂ removal efficiency by plasma reactor with magnetic field was much higher than that of plasma reactor without magnetic field. In this Paper, one needle-plate geometry discharge system with magnetic field at a right angle to the electric field was made. The corona discharge characteristics for this system was investigated and compared with the corona characteristics for the corona discharge system without magnetic field. As a results, breakdown voltage for the electric-magnetic hybrid system was higher than that for only electric field system and corona current with magnetic field was lower than that without magnetic field. Corona discharge zone with magnetic field was wider than that without magnetic field. Breakdown Voltage increased with increasing the magnetic field density.

아미노산 투여가 중장거리 운동선수의 최대 및 최대하운동시 젖산생성에 미치는 영향

이정수,윤탁영,김문희,이선장,김완조 韓國體育大學校附屬 體育科學硏究所 1992 韓國體育大學校附屬 體育科學硏究所論文集 Vol.11 No.1

The Purpose of the Study was to determine whether the glutamate ingestion prior to exercise would reduce the lactat formation and its clearance in exercising mscle tisue during Submaximal and maximal execise. Six elite distance rummers particapated in this study. The Subjects had a half dose of glutamale(15.6mg .Kg?? ??) at 45min and ingested rest dose at prior to exerise. The test Performed twice. One was Performed in the track and the other was in the Lab. Blood Smples were obtained from catheter which was placed in the antecubital vein (Lab test) and finger tip Samples (Feld test) Unaltered blood lactate was observed in both trials, but, tended to less lactate concentration with glutamate ingestion than that of without glutamate ingestion. The recovery rate of blood lactate was markely rapid with glutamate ingestion in the field test. Unchanged in heart rate was founded in both trials. It many Suggest that, the additional supplement st of glutamate can improve execise performance limiting lactate formation or induce its rapid clearance from the muscle fissue.