Surface albedo from the geostationary Communication, Ocean and Meteorological Satellite (COMS)/Meteorological Imager (MI) observation system

Lee, Chang Suk,Han, Kyung-Soo,Yeom, Jong-Min,Lee, Kyeong-sang,Seo, Minji,Hong, Jinkyu,Hong, Je-Woo,Lee, Keunmin,Shin, Jinho,Shin, In-Chul,Chun, Junghwa,Roujean, Jean-Louis Informa UK (TaylorFrancis) 2018 GISCIENCE AND REMOTE SENSING Vol.55 No.1

<P>The surface albedo is an essential climate variable that is considered in many applications used for predicting climate and understanding the mechanisms of climate change. In this study, surface albedo was estimated using a bidirectional reflectance distribution function model based on Communication, Ocean and Meteorological Satellite/Meteorological Imager data. Geostationary orbiting satellite data are suitable for a level 2 product like albedo, which requires a synthetic process to estimate. The authors modified established methods to consider the geometry of the solar-surface-sensor of COMS/MI. Of note, the viewing zenith angle term was removed from the kernel integration used for estimating spectral albedo. Finally, the spectral (narrow) albedo was converted into the broadband albedo with shortwave length (approximately 0.3-2.5 m). This study determined conversion coefficients using only one spectral albedo of visible channel. The estimated albedo had a relatively high correlation with Satellite Pour l'Observation de la Terre/Vegetation and low unweighted error values specific for land types or times. The validation results show that estimated albedo has a root mean square error of 0.0134 at Jeju flux site that indicates accuracy similar to that of other satellite-based products.</P>

Effects of the Aromatherapy Program Using Fir Needle Essential Oil on Stress, Sleep Quality and Fatigue in Middle-Aged Women

Jong-Suk Hong,Woo-Yeol Kim,Chang-Duck Koo 인간식물환경학회 2018 인간식물환경학회지 Vol.21 No.5

The purpose of this study was to investigate the effect of aromatherapy program using fir needle essential oil on stress, sleep quality, and fatigue of middle aged women. Twenty middle-aged women were divided into experimental group and control group. The experimental group inhaled the fir needle fragrance for 5 minutes and received a back massage with sunflower oil mixed with fir essential oil for 20 minutes. The control group took a rest for 5 minutes instead of inhaling the fragrance of essential oils and received a back massage with only sunflower oil. The experiment was conducted total eight times (twice a week) for four weeks. For the measurement of stress, fatigue, and sleep quality, questionnaires were used to collect data in the pre-test survey and post-test survey. As a result, the scores of physical and psychological stress in the experimental group and the control group were significantly decreased. However, the physical stress was more decreased in the experimental group treated with fir oil aromatherapy. In addition, both groups showed a significant difference in the quality of sleep. Fatigue measurements showed significant changes in both groups, but the fatigue reduction was more significant in the experimental group. These results suggest that massage therapy for the middle-aged women has a positive effect on relieving physical and psychological stress, improving sleep quality and reducing fatigue by assisting metabolism and blood circulation. This study proved that fir needle essential oil can be a good material for aromatherapy to promote health of middle aged women undergoing physical, psychological, and social changes.

토끼에서 신델라 겔 ( 송아지의 제단백혈액추출물 황산 미크로노아이신 = 20 1 혼합물 ) 의 피부자극성시험

남석우(Suk Woo Nam),이영진(Young Jin Lee),고영권(Young Kwon Ko),장만식(Man Sik Chang),최완수(Wahn Soo Choi),김규봉(Kyu Bong Kim),우태욱(Tae Wook Woo),한정환(Jeung Whan Han),홍성렬(Sung Youl Hong),이향우(Hyang Woo Lee) 한국응용약물학회 1996 Biomolecules & Therapeutics(구 응용약물학회지) Vol.4 No.4

This study was conducted to investigate the skin irritation toxicity of Syndella gel, a combination topical drug containing a deproteinised dialysate of calfs blood and micronomicin sulfate in the ratio of 20 to 1, in New Zealand White rabbits. In the primary skin irritation test with male New Zealand White rabbits, there was no treatment-related effect on clinical sign, and body weight was not significantly changed. The Primary Irritation Index (PII) was 0.33, indicating that Syndella gel was a mildly irritating formulation.

전열응고해석법을 이용한 마그네슘합금의 열전달계수 및 롤의 온도변화 측정

한창석,이찬우,Han, Chang-Suk,Lee, Chan-Woo 한국재료학회 2022 한국재료학회지 Vol.32 No.9

Research is being actively conducted on the continuous thin plate casting method, which is used to manufacture magnesium alloy plate for plastic processing. This study applied a heat transfer solidification analysis method to the melt drag process. The heat transfer coefficient between the molten magnesium alloy metal and the roll in the thin plate manufacturing process using the melt drag method has not been clearly established until now, and the results were used to determine the temperature change. The estimated heat transfer coefficient for a roll speed of 30 m/min was 1.33 × 10⁵ W/m²·K, which was very large compared to the heat transfer coefficient used in the solidification analysis of general aluminum castings. The heat transfer coefficient between the molten metal and the roll estimated in the range of the roll speed of 5 to 90 m/min was 1.42 × 10⁵ to 8.95 × 10⁴ W/m²·K. The cooling rate was calculated using a method based on the results of deriving the temperature change of the molten metal and the roll, using the estimated heat transfer coefficient. The DAS was estimated from the relationship between the cooling rate and DAS, and compared with the experimental value. When the magnesium alloy is manufactured by the melt drag method, the cooling rate of the thin plate is in the range of about 1.4 × 10³ to 1.0 × 10⁴ K/s.

울형성 심부전증에서 심혈관계 보상기전의 지표로서 저나트륨혈증의 의의에 관한 연구

김경환,김미경,이우형,홍사석,신길자,장일중 대한내과학회 1986 대한내과학회지 Vol.31 No.3

In patient with congestive heart failure, it is well known that the sympatho-adrenal system and the renin angiotensin system are activated to compensate for the reduction of cardiac output and the redistribution of blood flow. Although Lilly, et al. (1984) and Francis, et al. (1985) have insisted that the induction of these circulatory compensation mechanism by pastura1 changes is closely related to the concentration of plama sodium in congestive heart failure, it is still controversial. Thus, in an effort to clarify this hypothesis, present study was designed to determine the relationship between the existing sodium concentration in plasma and the changes of the plasma catecholamine concentration and renin activity during postural alterations in patients with congestive heart fai1ure and normal subjects. Ten patients with congestive heart failure who had been admitted to the Ewha Womans University Hospital from May, 1985 to July, 1985 and five normal volunteers were chosen. Patients with more than one year history of congestive heart failure belonging to class 3 or 4 as the criteria set by the New York Heart Association have been selected for this study. Among these ten patients, 5(3 males and 2 females) had low plasma sodium concentration(below 135mEq/l) and 5(3 males and 2 females) had normal plasma sodium concentration(above 135mEq/l). The observed results are as follows: 1) In the normal subjects, the observed plasma renin activity was 1,2±0.4ng/ml/hr and the concentrations of norepinephrine and epinephrine were 177.5±27 and 150.0±8pg/ml, respectively, at supine position. However, these values were increased by about 2 times by changing to upright position. 2) In patients with hyponatremic congestive heart failure, the values of plasma renin activity and catecholamine levels were significantly higher than those patients having normonatremia. 3) The increase in the plasma renin activity and catecholamin levels induced by upright position were minimal in patients with congestive heart failure having normonatremia. 4) However, in patients with hyponatremic congestive heart failure, the plasma renin activity and the levels of plasma catecholamines were not altered, or rather decreased, by the same postural changes. Based on the results, the levels of plasma sodium concentration in patients with congestive heart failure could provide an index for the induction of circulatory compensation mechaniams and may have important significance in determining the severity and prognosis of the disease. Particularly in the congestive heart failure patients with hyponatremia, as the circulatory compensation mechanism appear to be operating at maximum already, they would not be able to utilize the reflex compensation mechanism inducible with the changes of body position.

P177 Dermoscopic findings during the course of β -blocker treatment for infantile hemangioma

( Jin-hwa Son ),( Hyun-ju Jin ),( Hyang-suk You ),( Woo-haing Shim ),( Jeong-min Kim ),( Gun-wook Kim ),( Hoon-soo Kim ),( Byung-soo Kim ),( Moon-bum Kim ),( Hyun-chang Ko ) 대한피부과학회 2016 대한피부과학회 학술발표대회집 Vol.68 No.2

<div style="display:none">fiogf49gjkf0d</div><div style="display:none">fiogf49gjkf0d</div><div style="display:none">fiogf49gjkf0d</div><div style="display:none">fiogf49gjkf0d</div><div style="display:none">fiogf49gjkf0d</div><div style="display:none">fiogf49gjkf0d</div><div style="display:none">fiogf49gjkf0d</div> Background: Dermoscopy is a useful tool for examining morphology and structure of blood vessels in vascular skin lesions like infantile hemangioma (IH). However, dermoscopic findings are not fully elucidated in the course of β-blocker treatment for IH. Objectives: To investigate changes of dermoscopic findings during the course of β-blocker treatment for IH. Methods: Superficial or mixed-type IH patients treated with topical timolol solution or oral propranolol were enrolled in Pusan National University Hospitals (Busan and Yangsan) from November 2011 to January 2016. Clinical photograph and dermoscopic findings were recorded and assessed at the baseline, 1, 2, 3 and 6 months. Results: Total 115 patients (male: 38 and female: 77 / superficial type: 48 and mixed type: 67 / timolol: 77 and propranolol: 38) were included. Diffuse light erythema tended to be diminished but milky-red area increased gradually during the course of treatment. The patients treated with oral propranolol showed more prominent changes on each dermoscopic findings than those treated with topical timolol (p=0.023 and p=0.018, respectively). But, other findings like red-globular vessels, red-dot vessels, red-circulated vessels, red-linear vessels did not show significant changes. Conclusion: Dissolution of diffuse light erythema and increase of milky-red area were significant dermoscopic findings in accordance with clinical improvement after β -blocker therapy for IH.

대퇴골 전자간 골절의 압박나사못 고정술 치료에서의 원위 골절부 위치의 중요성

라종득,박현수,박영봉,임창석,김승우 대한골절학회 2003 대한골절학회지 Vol.16 No.4

대장암 환자에서의 담즙 암태아성 항원(CEA)

김종우,박용태,정철운,권성원,장항석,손석우,안대호,이경포 대한대장항문학회 2000 Annals of Coloproctolgy Vol.16 No.6

40ㆍ50대 일부 남성근로자의 골감소증 및 골다공증 유병실태와 위험요인

장윤균,서현주,진영우,정미선,성숙희,박두용,김종순,김수근 大韓産業醫學會 2006 대한직업환경의학회지 Vol.18 No.2

목적: 최근 국내에서도 골다공증과 관련된 생활양식의 규명에 관한 연구가 이루어지고 있으나, 아직까지 남성 골다공증에 대한 연구가 활발하게 이루어지지 않아 40, 50대 남성근로자를 대상으로 유병률을 파악하고, 골감소증 및 골다공증 관련 위험요인을 확인하고자 하였다. 방법: 원자력발전소에 근무하는 40, 50대 남성 근로자 2,073명을 대상으로 2004년 3월~7월 기간동안 생활습관을 파악하기 위하여 자기기입식 전산입력 방식으로 최종학력, 흡연여부, 음주여부, 신체활동 횟수를 조사하였고, 골밀도검사, 체성분검사(체지방률, 허리-엉덩이둘레비), 신체계측(신장, 체중)을 시행하였고, 골밀도 검사는 Osteosys사의 EXE-3000을 이용하여 종골부위를 측정하였고, 체지방률, 허리-엉덩이 둘레비는 Biospace사의 Inbody 3.0을 이용하여 측정하였다. 통계분석은 골감소증 및 골다공증의 관련요인을 분석하기 위해 다중로지스틱회귀분석을 시행하였다. 결과: 연구대상자의 골감소증 및 골다공증 유병률은 22.8%와 3.0%이었으며, 골감소증 및 골다공증의 관련요인으로는 연령이 증가할수록, 흡연자이거나 과거흡연자일 경우, 체질량지수가 25 kg/m^(2) 미만일 경우, 30분 이상 신체활동 횟수가 주 3회 미만일 경우가 유의한 연관성이 있었다. 결론: 성인 남성 40, 50대의 골감소증 및 골다공증의 유병률이 높은 편이었으며, 골감소증 및 골다공증으로 이환을 예방하기 위하여 금연, 활발한 신체활동을 촉진하여 골밀도를 개선시키는 생활습관으로의 변화를 권고해야 할 것이다. Objective: This study was conducted to investigate the prevalence and risk factors of osteopenia and osteoporosis in 40-59 year-old male workers working at nuclear power plants. Methods: Bone density, body composition, and anthropometry data were analyzed for 2,073 subjects were carried out from March 2004 to July, 2004. Educational level, smoking status, drinking status and frequency of physical activity were investigated by self-reported questionnaires through internet to identify lifestyles related to bone mass density. Bone mass density was measured by EXE-3000 of Osteosys Co. And body fat percentage, and waist-to-hip ratio by inbody 3.0 of Biospace Co. Results: The prevalence of ostepeniaosteopenia and osteoporosis was 22.8% and 3.0%, respectively. According to multinominal multinomial logistic regression analysis, age, smoking status (current smoker and former smoker), low body mass index (< 25kg/m^(2)), and frequency of physical activity were significantly associated with osteopenia and osteoporosis. Conclusions: The prevalence of ostcopenia and osteoporosis wasseemed high for the, when it was inferred from subjects' age compared to the results of previous studies. The This study results suggeststhat it is necessary for 40-59 year-old male workers to stop smoking, and exercise regularly in order to prevent osteopenia and osteoporosis.

Three zone of purple, red and white patch, A characteristic dermoscopic sign for glomus tumor

( Woo-haing Shim ),( Geun-hwi Park ),( Sung-min Park ),( Hyun-joo Lee ),( Tae-wook Kim ),( Hyunju Jin ),( Hyang-suk You ),( Gun-wook Kim ),( Hoon-soo Kim ),( Hyun-chang Ko ),( Byung-soo Kim ),( Moon-b 대한피부과학회 2017 대한피부과학회 학술발표대회집 Vol.69 No.2

Background: Despite characteristic clinical features of glomus tumor, dermatologists can meet diagnostic difficulty in some cases with glomus tumor. Objectives: To investigate clinical features and dermoscopic findings of glomus tumors. Methods: For 22 cases of glomus tumors, sex, age of initial visit, disease duration, site of lesion, size, associated symptoms and nail deformities and dermoscopic findings were investigated. Results: Mean age of initial visit and disease duration was 43.4±13.4 years old and 5.6±5.1 years, respectively(19 female, 3 male). Both 1st Fingers(9, 40.9%) were most common involved site. Nail lunula(12,54.5%) was more frequently involved than proximal nail fold(6,27.3%) or nail bed(4,18.2%). 15 cases were identifiable for size, and mean size was 6.0±1.9mm. There was associated symptoms such as pain(16,72.7%), tenderness(7,31.8%) and cold intolerance(2,9.1%). Onychoschizia(13,59.1%), longitudinal ridging(12,54.5%) and distal nail notching(8,36.4%) were commonly associated nail changes. On dermoscopic examination, whitish patch(16, 72.7%), purplish patch(15, 68.2%), erythematous patch(13, 59.1%) and irregular linear vessel(1, 4.5%) were observed. In 9 cases(40.9%), characteristic three zone consisting of central purplish patch, middle erythematous patch and peripheral whitish patch were observed. Conclusion: Characteristic dermoscopic findings of this study can help making more accurate diagnosis and performing appropriated treatment in glomus tumors