도시내 공원녹지가 주변 열환경에 미치는 영향

윤용한 건국대학교 자연과학연구소 1999 建國自然科學硏究誌 Vol.10 No.2

In this study, dealt with relation of air temperature inside and outside of open space area, the scale of the parks, the investigation of air temperature distribution was conducted. This time parks with large scales were taken into consideration and their relation with the temperature were investigated. Then, relation between temperature distribution inside and outside the parks, green coverage of the parks and the temperature, number of trees and decrease in air temperature were analyzed using regression analysis. As the result, the temperature of surrounding urban area was found greater than temperature inside the park area. Phenomenon was due to the difference in the air temperature inside and outside the park area ; the down-stream flow of cooler air inside the park area resulting decrease in the air temperature of the surrounding urban area was confirmed. Again, it was understood that air temperature distribution varied corresponding to the green coverage of the parks, and increase in number of trees effective in decreasing air temperature.

충주 저탄소 녹색도시의 목표와 전략

윤용한,이상규 한국행정학회 2010 한국행정학회 학술발표논문집 Vol.2010 No.-

녹지의 산출방법이 습도변화에 미치는 영향

윤용한,박헌,Yoon, Yong-Han,Park, Heon 한국잔디학회 2002 한국잔디학회지 Vol.16 No.1

본 연구는 녹지의 계층구조 등이 다양한 도시녹지를 대상으로 그 산출방법이 습도변화에 미치는 영향을 정량적으로 파악하기 위해 녹지내의 습도분포를 관측하였다. 그 데이터를 바탕으로 녹지의 토지피복현황과 습도분포, 식재의 산출방법과 습도, 식재의 계층구조의 산출방법과 습도와의 관련성을 회귀분석 등에 의해 해석하였다. 그 결과, 토지피복현황뿐만 아니라 녹지의 산출방법이 습도변화에 많은 영향을 미치고 있다. 또한, 식재율(평면적) 및 식재량(입체적)의 증가는 습도상승에 효과적이다. 더욱이 계층구조가 다양한 식재를 대상으로 그 산출방법과 습도상승과의 관계를 회귀계수와 상관계수를 통해 비교하면, 식재를 산출할 경우에는 평면적인 방법보다 입체적인 방법이 습도상승에 미치는 효과(수치)가 컸다. 앞으로 습도상승효과의 지표로서 식재의 산출은 입체적인 방법의 활용을 제안한다. For this study grasp quantitative humidity variation with planting stratification to various green space of calculation method, observed humidity distribution in the green space. with this data, coverage condition and humidity distribution, planting calculation method and humidity, planting stratification calculation method and humidity, analyzed by revolution analysis. In this result, as well as coverage condition, planting stratification effect humidity variation. increasing planting ratio (area) and planting volume (capacity) effect higher humidity. especially, if we compared between planting stratification calculation method and higher humidity, effect by a revolution coefficient and a correlation coefficient, effect relatively planting volume (capacity) higher than stratification ratio (area). today, in the index of higher humidity, planting calculation propose application of capacity method.

녹지의 배치와 식재형태가 열환경저감효과에 미치는 영향

윤용한 한국잔디학회 2003 한국잔디학회지 Vol.17 No.4

본 연구는 녹지의 배치와 식재형태가 기온저감효과에 미치는 영향을 파악한 결과 다음과 같은 점이 밝혀졌다. 1) 녹지의 기온분포도로부터 고온역은 주변시 가지에서, 저온역은 각 녹지내의 식재지주변과 소하천주변에서 확인되었다. 2) 녹지의 배치와 기온과의 관계를 보면, 저온역은 각 녹지와 거의 일치하고 녹지간 시가지 및 풍하쪽에도 저온역이 형성되었다. 3) 녹지간 시가지와 기온과의 관계를 보면 저온역은 풍하쪽 시가지뿐 아니라 녹지간 시가지에서도 나타났다. 또한, 풍상쪽에 녹지가 존재하지 않은 경우에도 녹지간 시가지는 주변 시가지 보다 낮은 기온이었다. 4) 토지피복비율과 기온에서 식재지, 초지 및 수면이 증가하면 모두 기온저감에 효과적이고, 나지의 증가는 기온상승에 효과적이다. 5) 교목, 소교목의 순으로 그 그루의 증가는 기온저감에 유효하게 관련되어 있는 것이 파악되었다. Temperature lowering effects varied by the arrangement and types of vegetation The effects of the arrangement and types of vegetation on lowering temperature have shown following results. 1) The temperature range of a vegetation shows that a higher temperature was recorded near urban towns while lower temperature was observed around the vegetation area and small streams. 2) The relationship between the arrangement of a vegetation and the temperature indicates that the lower temperature area matches with each vegetation area. Streets between vegetations and the lower end of the wind area have also lower temperature. 3) The relationship between inter-vegetationstreets and the temperature indicates that the lower temperature area has been observed not only at the streets of the lower end of the wind but at the streets in-between streets as well. Even when there's no vegetation area from which the wind blows, inter-vegetation streets showed the lower temperature. 4) With land coverage ratio and the temperature, the increase of planted areas, grass areas, and water level have positive effects on lowering the temperature while bare areas increase it. 5) From arbor to sub-arbor, the increase of trees has a significant effect on lowering the temperature of nearby area.

도시공원에 있어서 풍속의 차이가 기상환경조절효과에 미치는 영향

윤용한 建國大學校 自然科學硏究所 2001 建國自然科學硏究誌 Vol.12 No.-

This research observed relationship between difference of wind speed and the air temperature distribution in the internal and external of the green space. Also, this study interpreted the relationship between the air temperature distribution in the internal and external of the green space, lower temperature effect and extent of green space surround, lower temperature effect and intensity of green space, regression analysis of relationship of green coverage rate and air temperature. The result, case of internal green space, is that lower temperature area is expanded the direction toward which wind blows by strength of wind speed. case fo internal green space. A faint winding max temperature difference of the day more than strong wind and lower temperature is more effect adverse wind speed.

Large Cell Neuroendocrine Carcinoma of the Thymus: A Two-Case Report

윤용한,김재호,김광호,백완기,이현규,이문희,이경희,김루시아 대한흉부외과학회 2012 Journal of Chest Surgery (J Chest Surg) Vol.45 No.1

A large cell neuroendocrine carcinoma (LCNEC) of the thymus is a very rare malignant tumor that has a very poor prognosis. The detailed clinical features of LCNEC are still unknown, including the long term prognoses and the definitive modalities of the treatment for LCNEC of the thymus. We are reporting 2 cases of an enlarged LCNEC of the thymus, both of which were diagnosed and treated by surgical resection followed by postoperative adjuvant chemoradiation therapy. Although recurrences and metastases of the LCNEC were noticed 1 and 4 years postoperatively for each case, aggressive surgical resection and adjuvant chemoradiation therapy may be helpful for a patient’s long term survival.

폭염시 토지이용유형별 보행공간 이온지수 평가 - 충주시를 대상으로 -

윤용한,윤지훈,김정호 한국환경생태학회 2019 한국환경생태학회지 Vol.33 No.3

본 연구에서는 충청북도 충주시를 대상으로 폭염시 토지이용유형별 보행공간의 기상특성과 공기이온 특성을 측정 및 분석하였다. 연구대상지 보행공간의 토지이용유형 구분은 지적편집도를 이용하여 대상지를 크게 Green Area, Residential Area, Commercial Area으로 실시하였다. 측정지점은 약 4.1km, 44개 지점으로 측정지점을 선정하여 외곽지 역 관통도로 보행공간 Green Area 12개 지점, Residential Area 14개 지점, Commercial Area 18개 지점으로 구분하여 측정하였다. 또한 폭염시 토지이용유형별 보행공간의 기온, 상대습도, 일사량, 순복사량 등의 기상요소가 음이온 발생량, 양이온 발생량에 미치는 영향을 분석하여 이온지수를 산출하였다. 폭염시 토지이용유형별 보행공간의 공기이온 특성 비교결과 평균 양이온 발생량은 Commercial Area(700.73ea/cm3) > Residential Area(600.76ea/cm3) > Green Area(589.73ea/cm3)로 분석되었다. 평균 음이온 발생량은 Green Area(663.95ea/cm3) > Residential Area(628.48ea/cm3) > Commercial Area(527.48ea/cm3) 로 분석되었다. 평균 이온지수는 Green Area(1.13) > Residential Area(1.04) > Commercial Area(0.75)로 분석되었다. 본 연구는 폭염시 토지이용유형별 보행공간에 따른 기상특성, 양이온 발생량과 음이온 발생량 현황을 확인할 수 있었으며, 토지이용유형별 보행공간의 이온지수의 차이를 확인할 수 있었다. 그러나 이동측정에 따른 토지이용유형별 정확한 비교 부족과 도로 폭 변화에 대한 정량적 특성 비교가 부족한 한계점이 존재하였 다. 따라서 도로 특성을 고려한 지속적인 연구가 이루어져야할 것으로 판단되었다. This study measured and analyzed the weather characteristics and the air-ion characteristics of walking space by land use type in Chungju, Chungcheongbuk Province during the heat wave. We used the land registration map to classify the type of land use in walking areas in the studied into the production and green area, the residential area, and the commercial area. We then selected 44 measurement points in about 4.1 km. They included 12 walking space points in the green area, 14 in the residential area, and 18 in the commercial area. Moreover, we calculated the ion index by analyzing the impact of weather factors such as temperature, relative humidity, solar radiation, and net radiation in the walking space on the anion generation and cation generation by land use type during the heat wave. Comparison of air ion characteristics in walking space by type of land use during the heat wave showed that the average cation generation was in the order of commercial area (700.73 cations/cm3) > residential area (600.76 cations/cm3) > green area (589.73 cations/cm3). The average anion generation was in the order of green area (663.95 anions/cm3) > residential area (628.48 anions/cm3) > commercial area (527.48 anions/cm3). The average ion index was in the order of green area (1.13) > residential area (1.04) > commercial area (0.75). This study checked the weather characteristics, cation generation, and anion generation in walking space according to the land use type during the heat wave and checked the difference of ion indexes in the walking space according to the land use type. However, there were limitations in the lack of accurate comparison according to the land use due to the moving measurement and the insufficient quantitative comparison according to the change of road width. Therefore, we recommend further studies that consider the road characteristics.

외상성 혈흉의 임상적 고찰

윤용한,이두연,김해균,문동석 대한외상학회 1997 大韓外傷學會誌 Vol.10 No.1

A clinical profiles and management of 235 consecutive traumatic hemothorax patients treated and followed up were reviewed in this study at the Department of the Thoracic and Cardiovascular, Yongdong Severance Hospital, during the period from Jan. 1992 to Sep. 1996. The age distribution was from l to 87 years, the most common age groups was 5th decade. The ratio of male to female was 2.64:1, showing male predominance. The most common cause of traumatic hemothorax was traffic accident in non-penetrating injuries and stab wounds in penetrating injuries. There were 223 non-penetrating and 12 penetrating injuries; 32 patients (13.4%) required thoracotomy. Single or multiple thoracostomy was performed in l80 patients (75.3%). The remaining 27 patients (11.3%) required only observation. Ten patients (4.2%) died, the mortality being related to head injury, intracranial hemorrage in three, bilateral flail chest in two, pulmonary embolism in one, aortic rupture in one, and irreversible hypovolemic shock in one. Nonfatal complications included atelectasis in 10 cases(4.2%),ARDS in 8 cases (3.4%), pneumonia in 5 cases (1.2%), septicemia in three cases (1.2%), empyema in three cases (1.2%), ARF in three cases (1.2%), and wound infection in two cases (0.5%).

녹지주변의 토지이용형태가 녹지내의 기온저감효과에 미치는 영향

윤용한,조계현,백승엽,김승태,김원태 한국잔디학회 2003 한국잔디학회지 Vol.17 No.1

본 연구는 녹지주변의 토지이용형태의 차이가 녹지내의 기온저감효과에 미치는 영향을 정량적으로 파악하기 위해 녹지내외의 기온분포를 관측하였다. 그 데이터를 바탕으로 녹지내의 토지피복현황과 기온, 녹지주변의 기온저감효과와 그 영향범위 및 수목그루와 기온저감효과와의 관련성을 회귀분석 등에 의해 해석하였다. 그 결과 녹지내의 고온역은 포장면, 나지 주변에서 저온역은 수림지, 수면 주변에서 형성되었다. 또한 녹지를 중심으로 풍하 쪽의 관측치는 최저기온보다 최고기온이 편차가 크지만, 전체적으로는 녹지에 가까워질수록 기온이 낮아지는 경향을 보였다. 토지피복비율과 기온과의 관계를 보면, 수림지, 초지 및 수면은 기온저감에 효과적이고, 그 토지피복비율의 증감에 따라 기온저감효과가 서로 달랐다. 녹지주변의 토지이용형태의 차이가 녹지내의 기온저감효과에 미치는 영향은 Shakuzi park(주거전용지역)보다 Ageomaruyama Park (시가화조정구역) 상대적으로 효과가 컸다. The purpose of this study was to find out how different types of land use around green belts affect temperature decrease effects. For this, temperatures within and outside of green belts were measured. Based on the collected data, the study analyzed the land cover status and temperatures within green belts, temperature decrease effects and the range of effects around green belts, and the correlation between trees and temperature decrease effects by way of regression analysis. As a result, areas of the high temperature within green belts were formed on paved surfaces, whereas areas of low temperature were formed around forests or water surfaces. In addition, deviation was bigger in the highest temperature than the lowest one for areas of Leeward around green belts, but in general, there was a tendency that temperature became low near to green belts. As for the relation between land cover rate and temperature, what was effective to temperature decrease included forests, pasture and water surfaces. On the other hand, the effects of temperature decrease varied depending on increase or decrease of land cover rates. As for the influence of the different land use types around green belts on temperature decrease effects, the Shakuzi Park showed relatively stronger effects than the Ageomaruyama Park.

Immersed Solid Method를 이용한 3차원 외접형 기어 펌프의 수치적 연구

윤용한,박병호,한용운,홍병주,심재술 대한기계학회 2014 대한기계학회 춘추학술대회 Vol.2014 No.4