전기 방열기가 국화재배온실의 난방에 미치는 영향

서원명 ( Won Myung Suh ),임재운 ( Jae Woon Leem ),김영주 ( Young Ju Kim ),민영봉 ( Young Bong Min ),김현태 ( Hyeon Tae Kim ),허무룡 ( Moo Ryong Huh ),윤용철 ( Yong Cheol Yoon ) 경상대학교 농업생명과학연구원(구 경상대학교 농업자원이용연구소) 2010 농업생명과학연구 Vol.44 No.4

경상대학교 교내에 설치되어 있는 1-2W형 온실을 대상으로 전기 방열기를 이용하여 국화 재배온실의 난방효과를 검토한 결과는 다음과 같다. 실험기간동안 최고, 평균 및 최저 외기온은 각각 -3.8~21.3℃, -5.2~16.1℃ 및 -12.5~14.4℃ 정도의 범위로 나타났으며, 온실 내외의 평균상대습도 각각 43.5~98.6% 및 35.2~100%로 나타났다. 12월 중순부터 2월 상순까지 최저 외기온은 대략 -5.0~-10.0℃ 전후로 나타나 진주기상대의 최근 자료와 비교하면 상대적으로 최저기온이 낮게 나타나는 경향이 있었다. 야간의 경우, 방열기 직하부의 엽온이 방열기 중간 지점에서 측정한 엽온 보다 크게 2~3℃정도 높게 나타나거나 또는 미미하지만 약간 높게 나타나는 경향이 있었다. 근권부의 경우, 직하부나 중간 지점에서의 온도 차이는 거의 없는 것으로 나타났고, 근권부의 최고온도와 기타 최고 온도의 발생 시점을 보면, 약 2시간정도의 지체현상이 있음을 알 수 있었다. 그리고 실험기간동안 난방에 소요된 총 소비전력량, 공급에너지 및 총 난방비는 각각 2,800kWh, 2,408,000kcal 및 112,000won 정도였다. 화석연료인 경유로 난방할 경우, 총 난방비는 224,500won 정도였다. 방열기를 이용하여 난방할 경우, 난방비를 약 50% 정도 줄일 수 있을 것으로 판단되었다. An analysis in heating effects of an electric radiator located in a 1-2W type chrysanthemum (3 cultivars) cultivation greenhouse installed in Gyeongsang National University drew the following conclusions. During the experiment period, the highest, average, and the lowest outside temperatures were in the ranges of -3.8~21.3℃, -5.2~16.1℃ and -12.5~14.4℃, respectively, and the average relative humidity inside and outside the greenhouses were in the ranges of 43.5~98.6% and 35.2~100%, respectively. From mid-December to early February, the lowest outside temperature was recorded as approximately -5.0~-10.0℃, which showed that it tended to be relatively lower than the temperatures recorded at the Jinju Meteorological Observatory. During the night, the leaf temperature measured directly under the radiator tended to be higher by 2~3℃ than that those at the middle point of the radiator, or higher by anegligible amount. In the case of root zone temperature, it was found that there was almost no difference between temperatures of the part directly under and the middle point, and the time when the highest temperature of root zone and other highest temperatures took place showed that there was about a 2-hour delay phenomenon. The total electricity consumption, energy supply and total heating cost during the experiment period were 2,800 kWh, 2,408,000 kcal and 112,000 won, respectively. When diesel, a kind of fossil fuel, was used as heating oil, the total heating cost was around 224,500 won. It was estimated that the total heating cost could be reduced by around 50% if a radiator was used.

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.

일시적인 피질맹과 인지기능장애로 발현한 간성 뇌병증 1예

윤고운,박민정,박경원,차재관,김재우 대한치매학회 2003 Dementia and Neurocognitive Disorders Vol.2 No.2

A 55-year-old woman presented with transient cortical blindness and multiple cognitive impairments as initial symptoms of hepatic encephalopathy. Her past history was negative for chronic liver disease or gastrointestinal bleeding. Neurologic examinations showed bilateral visual loss with a normal pupillary reflex to light and neuropsychological test showed significant impairments in all cognitive domains. Laboratory tests revealed increased liver enzymes, ammonia level, and positive IgG HbcAb. Ultrsonography of the liver showed findings consistent with liver cirrhosis with splenomegaly. The visual evoked potential study resulted in no wave formation on both sides. T1-weighted brain MRI showed high signal intensity lesions in both globus pallidus and cerebral peduncles of the midbrain. After treatment with lactulose, cortical blindness and cognitive dysfunctions disappeared within several days. In rare cases of hepatic encephalopathy, cortical blindness with cognitive impairments may occur before alteration of consciousness and usually recovers following treatment of the hepatic encephalopathy.

히스토아크릴을 이용한 십이지장 궤양 출혈의 지혈 후 발생한 급성췌장염

유재훈,문원,노지훈,구동영,조영화,김기수,윤준모 고신대학교 의과대학 2010 고신대학교 의과대학 학술지 Vol.25 No.1

Upper gastrointestinal bleeding is common and potentially life threatening medical emergency. Emergency endoscopy is the first choice of diagnostic and treatment measure for patients with active upper gastrointestinal bleeding. Histoacryl should be considered a second-line treatment modality when conventional treatments were failed. However, it might cause several complications. Herein, we report a case of acute pancreatitis developed after histoacryl injection therapy for active duodenal ulcer bleeding. A 71-year-old man was admitted with melena and hematemesis. On emergency endoscopy, a 2 cm sized active ulcer with bleeding from an exposedvessel was seen at the duodenal bulb. Attempts to arrest the bleeding with hemoclipping and submucosal epinephrine injection were tried, but failed. We changed the method to endoscopic histoacryl injection, and obtained hemostasis immediately. A few hourslater, after successful hemostasis, patient complained diffuse abdominal pain. Ultrasonography revealed hyperechoic heterogenous diffuse pancreatic enlargement and right pararenal space fluid collection, this ultrasonographic findings and elevated serum pancreatic enzymes are compatible with acute pancreatitis.

저수탱크의 혼화특성 평가

윤재흥,정혜원,오정우 대한상하수도학회 2003 상하수도학회지 Vol.17 No.1

Storage tanks have two types of function. One is to maximize the disinfection capability by inducing plug flow, and the other is to regulate the water quality by mixing flow completely. Hence the mixing indices to represent the flow characteristics in tanks are required to identify if the tank performs its function well. As a result of evaluating the existing indices with fluoride-tracer and dye tests, T_10/T and T_90/T_10 proved relatively good indices. However, T_10/T showed some limits to representing the characteristic of residence time distribution, and T_90/T_10 had too wide range of the values to be easily used for assessing the flow characteristics. An index proposed in this study can properly represent both the completely mixed and plug flows as well as short-circuit flow, and can be used as an index of assessing mixing characteristics.

60세 이상 환자의 척추수술

윤석만,이경석,도재원,배학근,윤일규 순천향의학연구소 2001 Journal of Soonchunhyang Medical Science Vol.7 No.1

Objective: Advances in surgical technique, anesthesia and perioperative patient management, coupled with the rapid increase in the population of patients reaching their 60s or older, have led to a signiticant rise in spinal precedures. The objective of this study was to evaluate frequency of the disease, surgical results and postoperative complications of the aged patients who underwent spinal surgeries. Methods : We reviewed all spinal procedures for spinal lesions including degenerative diseases, trauma, tumor and others in patients aged 60 years or older between January 1 1994 and October 1 1998(56 men and 26 women), retrospectively. Final outcome was assessed by telephone interview with the patient or the family in 67.1%(55/82). Results : There were 56 male patients and 26 female patients. There were 57 cases of degenerative diseases, 14 cases of trauma, 5 cases of metastaisis, 4 cases of infection and 2 cases of others. According to the level of surgical procedures, there were 20 cases fo cervical spine, 8 cases of thoracic spine, 54 cases of lumbar spine. Postoperaive complications included the following(17/82): 7 dural tears, 2 sepsis, 2 nerve root injury and 6 others. There were no operation-related deaths. During follow up period, ten patients(12.2%) had died, 45 patients(54.9%) were contacted and 27 patients(32.9%) could not be located. Mean follow up period for the 45 patients contacted was 26.1±15.7 months. Of the 45 persons contacted, 34(75.6%) reported improvement, 6(13.3%) no change and 5(11.1%) aggravation of their preoperative symptoms. Conclusion: Spine surgery in patients aged 60 years or older has higher complication rate compare to the younger but it is reasonable to consider the surgical procedures even in the elderly if it is needed. We should give attention not to tear the dura during the surgical procedures, especially in the elderly.

난소의 호산성 투명세포암종 - 1예의 보고 -

하창원,고재수,명나혜,조경자,박상윤,김미경,장자준 대한병리학회 1992 Journal of Pathology and Translational Medicine Vol.26 No.5

國語助詞의 複合樣相에 관한 考察 : 構文上 意味機能을 中心으로

尹載遠 慶星大學校 1983 부산수산대학 논문집 Vol.4 No.1

<검수에서 수정>

바이오매스로부터 생산한 바이오차에 의한 수질오염물질 흡착 : Adsorption of Water Pollution by Biochar Produced from Biomass

박윤,정수연,정은서,신윤정,이은주,이재원 전남대학교 농업과학기술연구소 2022 농업생명과학연구동향 Vol.60 No.-

Biochar is produced from lignocellulosic biomass (wood, agricultural and forestry waste, etc.) through thermal decomposition at high temperature. Water pollution (pesticides, dyes, heavy metals, and volatile organic compounds [VOCs]) can be efficiently removed by biochar. In particular, waste biomass is typically used as fuel or thrown away; thus, it is necessary to determine a valuable utilization for it. The process of biochar production is simple and suitable for the production of porous structures. In this paper, 1) biochar production and its characteristics based on biomass types, 2) research trends on the adsorption of water pollution (pesticides, dyes, heavy metals, VOCs) on biochar, and 3) expected effects are discussed.

腦卒中患者에 倂發된 肺炎에 대한 東西醫學 協力治療의 臨床的 硏究 : 抗生劑 使用實態와 死亡率을 中心으로

尹相協,柳在煥,景銀培,羅嶺雪,閔炳一,金裕國,金鍾烈,柳基遠 경희대학교 1992 慶熙醫學 Vol.8 No.4