• 혜화의학회지
• /
• 제8권2호
• /
• pp.171-189
• /
• 2000

By Literatural studying on migraine, The results were obtained as fallow : 1. A different name on migraine were called hemicrania(頭偏痛, 邊頭痛, 偏頭風). 2. In the cause of a disease in migraine, the cases were clasified into the fallowing kind : internal cause were a decline in energy and blood(氣血具虛), external cause were outside evil(外邪) in wind cold heat wetness(風寒暑濕), non internal, external cause were exhaustion. The right side migraine were concerned phlegm heat, the right side migraine were concerned wind decline in blood. 3. Migraine is appeared on the side, For the reason, liver function in excess of normal limits(肝陽上亢), a sudden of liver fire(肝火) is becomeed of invasion upon soyangkuong(少陽經) in internal external cause 4. Usage method of medicines is appeared that order underclothes theraphy(內服法), to pump out in nose theraphy, to join head theraphy(頭點法), heating smoke theraphy(熏煙法) 5. CNIDII RHIZOMA(川芎) is in mostly general use for migraine, in that order LEDEBOURIELLAE RADIX(防風) ANGELICAE DAHURICAE RADIX(白芷) ASARI HERBA CUM RADICE(細辛) NOTOPTERYGII RHIZOMA(羌活) GLYCYRRHIZAE RADIX(甘草) CHRYSANTHEMI FLOS(菊花) BUPLEURI RADIX(柴胡) SCUTELLARIAE RADIX(黃芩) ANGELICAE GIGANTIS RADIX(當歸) GYPSUM FIBROSUM(石膏) MENTHAE HERBA(薄荷) GLYCYRRHIZAE RADIX(炙甘草) VITICIS FRUCTUS(蔓荊子), nature is in mostly general hot warm(辛溫), bitter cold(苦寒), guikuong(歸經) is in mostly general liver gall kuong(肝膽經), efficacy is in mostly general to remove wind pain (祛風止痛) and to down fire(瀉火).

• 한국지형학회지
• /
• 제23권3호
• /
• pp.93-104
• /
• 2016

High school textbooks of world geography show geomorphic featuresin arid environments such as sand dune, yardang and ventifact which are largely created by aeolian processes. Desert pavements, ubiquitous armored surfaces composed of a mosaic of clasts in hot and arid regions, are introduced as a major landform which can be attributed to wind erosion. However, they are formed by a variety of processes including deflation, surface runoff, upward clast migration and dust accretion that cause coarse particles concentration at the surface. The deflation by wind leaving a lag of coarse clasts has been solely regarded at home, even though the classical mechanism of deflation has been evaluated as a relatively unimportant process of pavement formation abroad through empiricalstudies. The accretionary model is gaining wider acceptance, thus implying that desert pavements could be formed through deposition of aeolian material. In addition, sheetflood and upward migration of clasts, irrelevant to the aeolian processes, could also create stone pavements. As a consequence, the deflation process in high school textbooks has to be urgently modified into a range of processes including aeolian mantling. By stressing that desert pavements are an exceptional geomorphic feature in deserts where wind is a predominant geomorphic agent, they can be used as a good example to demonstrate that a landform is not monogenetic.

• 천문학회지
• /
• 제37권5호
• /
• pp.579-581
• /
• 2004

Recently, claims have been made of the detection of 'warm-hot' gas in the intergalactic medium. Kaastra et al. (2003) claimed detection of ${\~} 10^6$ K material in the Coma Cluster but studies by Arnaud et al. (2001), and our analysis of the Chandra observations of Coma (Vikhlinin et al. 2001), find no evidence for a $10^6$ K gas in the cluster. Finoguenov et al. (2003) claimed the detection of $3 {\times} 10^6$ gas slightly off-center from the Coma Cluster. However, our analysis of ROSAT data from this region shows no excess in this region. We propose an alternative explanation which resolves all these conflicting reports. A number of studies (e.g. Robertson et al., 2001) have shown that the local interstellar medium undergoes charge exchange with the solar wind. The resulting recombination spectrum shows lines of O VII and O VIII (Wargelin et al. 2004). Robertson & Cravens (2003) have .shown that as much as $25\%$ of the Galactic polar flux is heliospheric recombination radiation and that this component is highly variable. Sporadic heliospheric emission could account for all the claims of detections of 'warm-hot' gas and explain the conflicts cited above.

• 대한기계학회논문집B
• /
• 제33권9호
• /
• pp.666-673
• /
• 2009

The turbulent swirling flow field characteristics of a gun-type gas burner with a combustion chamber were investigated under the cold flow condition. The velocities and turbulent quantities were measured by hot-wire anemometer system with an X-type probe. The turbulent swirling flow field in the edge of a jet seems to cause a recirculation flow from downstream to upstream due to the unbalance of static pressure between a main jet flow and a chamber wall. Moreover, because the recirculation flow seems to expand the main jet flow to the radial and to shorten it to the axial, the turbulent swirling flow field with a chamber increases a radial momentum but decreases an axial as compared with the case without a chamber from the range of about X/R=1.5. As a result, these phenomena can be seen through all mean velocities, turbulent kinetic energy and turbulent shear stresses. All physical quantities obtained around the slits, however, show the similar magnitude and profiles as the case without a chamber within the range of about X/R=1.0.

• Journal of Astronomy and Space Sciences
• /
• 제29권1호
• /
• pp.47-49
• /
• 2012

Massive binary stars lose mass by two mechanisms: jet-driven mass loss during periods of active mass transfer and by wind-driven mass loss. Beta Lyrae is an eclipsing, semi-detached binary whose state of active mass transfer provides a unique opportunity to study how the evolution of binary systems is affected by jet-driven mass loss. Roche lobe overflow from the primary star feeds the thick accretion disk which almost completely obscures the mass-gaining star. A hot spot predicted to be on the edge of the accretion disk may be the source of beta Lyrae's bipolar outflows. I present results from spectropolarimetric data taken with the University of Wisconsin's Half-Wave Spectropolarimeter and the Flower and Cook Observatory's photoelastic modulating polarimeter instrument which have implications for our current understanding of the system's disk geometry. Using broadband polarimetric analysis, I derive new information about the structure of the disk and the presence and location of a hot spot. These results place constraints on the geometrical distribution of material in beta Lyrae and can help quantify the amount of mass lost from massive interacting binary systems during phases of mass transfer and jet-driven mass loss.

• Wind and Structures
• /
• 제3권3호
• /
• pp.209-220
• /
• 2000

The Strouhal number is an important nondimensional number which is explanatory of aerodynamic instability phenomena. It takes on the different characteristic constant value depending upon the cross-sectional shape of the body being enveloped by the flow. A number of investigations into this subject, especially on the drag test, surface pressure test and hot-wire test, have been carried out under the fixed state of the body in the past. However, almost no investigations concerning the determination of the St on wind-induced vibration of the body have been reported in the past even though the aerodynamic behavior of the body is very important because the construction of wind-sensitive structures is recently on the sharp increase. Based on a series of wind tunnel tests, this paper addresses a new method to determine the Strouhal number of rectangular cylinder in the uniform flow. The central idea of the proposed method is that the Strouhal number can be obtained directly by the aerodynamic behaviors of the body through wind-induced vibration test. The validity of proposed method is evaluated by comparing with the results obtained by previous studies in three B/Ds at attack angle $0^{\circ}$ and a square cylinder with various attack angles. The values and trends of the proposed Strouhal numbers are in good agreements with values of previous studies. And also, the Strouhal numbers of B/D=1.5 and 2.0 with various attack angles are obtained by the proposed method and verified by other method. This proposed method is as good as any other previous methods to obtain the Strouhal number.

• 한국안전학회지
• /
• 제9권1호
• /
• pp.61-67
• /
• 1994

Rate of rise heat detectors that respond to the heat generated in fire plume and alarm when the temperature reaches a specified point, give a great influences to the loss of life and property according to their reaction sensitivity. In this study, simple equations were derived which can be predicted the response time and temperature of the rate of rise heat detector with the results of hot wind tunnel tests and compartment fire experiments.

• 한국전산유체공학회:학술대회논문집
• /
• 한국전산유체공학회 2011년 춘계학술대회논문집
• /
• pp.179-182
• /
• 2011

The purpose of this study is to evaluate a defrost model for the possibility of defrosting on wheelhouse window and the heat capacity if defrosting nozzle by using the commercial CFD solver FLUENT. A detailed simulation model has been created which contains the defrosting nozzle, window and the interior/exterior forced convection boundary. In this numerical study, the heat and mass transfer coupled during defrosting and investigated the defrost time for different hot gas temperature, external wind speed and temperature condition.

• 한국조경학회지
• /
• 제50권5호
• /
• pp.69-79
• /
• 2022

본 연구는 최근 신재생에너지원으로 관광, 여행 등의 목적을 가지며 관광자원의 역할을 할 수 있는 풍력발전시설의 경관 인식을 파악하였다. 이에 지역별로 방문객이 경험한 풍력발전시설의 경관과 관련된 소셜미디어 데이터를 분석하였다. 분석 결과, 풍력발전시설의 경관을 인식할 때 연구대상지에서 공통적으로 풍력발전시설의 규모, 조망점과 풍력발전시설 간의 거리, 조망점에서 풍력발전시설을 볼 때 시각적 개방성, 풍력발전시설이 위치하고 있는 지형에 따라 달라지는 것을 알 수 있다. 또한, 풍력발전시설의 선호는 풍력발전시설의 형태와 주변경관을 파악할 수 있는 장소인 평지나 바다에 설치되어 있는 곳을 더 좋은 경관이라고 인식하고 있다. 특이한 점으로 경관에 대한 부정적인 키워드는 강원도 태백 가덕산, 태백 매봉산, 태기산과 경상도 경주 풍력발전시설에서 나타났다. 부정적인 키워드는 풍력발전시설을 가까이 조망했을 때 조망각이 높아 느껴지는 압도적인 크기와 산의 능선이 함께 보이는 경관에서 심리적 위압감을 느끼고 있음을 알 수 있다. 반면, 평지나 바다가 보이는 경관의 풍력발전시설에서는 긍정적인 경관 형용사가 도출되어 방문객은 경관의 스카이라인이 산 능선과 겹쳐서 보이거나 너무 가까이에서 풍력발전시설을 바라볼 때보다 평지나 바다에서 경관의 시각량이 충분히 확보될 때 그 장소를 대표할 만한 상징적인 요소라고 인식하고 있음을 알 수 있다. 본 연구는 풍력발전시설을 경험한 방문객의 의견을 토대로 경관 인식을 분석하였다. 그러나 풍력발전시설은 설치되는 권역별로 경관특성이 다르고, 시점, 관찰자 등 변수가 많아 연구결과를 일반화시키기 어려운 한계가 있다. 최근 풍력발전시설 조성 시 발생하는 경관훼손이 주요 이슈가 되고 있고, 국내에는 풍력발전시설의 경관을 평가할 수 있는 방법이 미흡하다. 이에 풍력발전시설의 경관을 평가할 시 풍력발전시설의 규모, 풍력발전시설이 설치된 지역 고유의 자연적 특성, 풍력발전시설과 조망점과의 거리가 중요한 구성요소로 나타난 것은 주목할 사항이라 판단된다. 또한, 풍력시설은 보전해야 할 자연환경에 설치되는 시설로 추후 경관적 관점에서 풍력발전시설과 주변 환경을 바라보는 경관의 연구가 필요하다.

• 환경영향평가
• /
• 제30권4호
• /
• pp.187-202
• /
• 2021

본 연구는 경상남도 창원시의 열환경 개선을 위해 열환경, 찬공기의 생성·유동성 및 지리적 특성을 분석하여, 지역 맞춤형 바람길 조성 방안을 검토하였다. 공간분석(spatial analysis), 원격탐사(remote sensing) 기법을 활용하여 창원시의 지표면온도, 토지피복 및 토지이용, 바람장, 경사도를 측정하고 이를 통해 바람길 분석모형을 구성하였다. 2020년도를 기준으로 분석한 결과, 창원시는 전반적으로 찬공기 생성에 유리한 토지피복 특성을 가지고 있으나, 대부분의 도심지 지역의 기온이 가장 높게 나타났다. 북창원 생활권, 진북면, 웅동, 웅천동 등 지역의 기온이 비교적 높으며, 산지지역에서 평균 풍속이 높고, 시가지에서 평균 풍속이 낮은 전형적인 경향을 보였다. 이에 따라 북창원 생활권, 구 창원 도심지, 호계리·평성리 지역, 창포만 지역을 열환경 개선지역으로 도출하고 각 지역의 특성을 고려한 지역 내 찬공기 유입 및 주변 산지, 저수지, 공원 지역 등과의 바람 유동성 확보를 통해 기온저감 및 대기질을 개선할 수 있는 다양한 방안들을 제안하였다.