• Structural Engineering and Mechanics
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• 제75권5호
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• pp.585-594
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• 2020

Detecting the damage of indeterminate trusses is of major importance in the literature. This paper proposes a quick approach in this regard, utilizing a precise mathematical approach based on Finite Element Method. Different to a general two-step method defined in the literature essentially based on optimization approach, this method consists of three steps including Damage-Suspected Element Identification step, Imminent Damaged Element Identification step, and finally, Damage Severity Detection step and does not need any optimizing algorithm. The first step focuses on the identification of damage-suspected elements using an index based on modal residual force vector. In the second step, imminent damage elements are identified among the damage-suspected elements detected in the previous step using a specific technique. Ultimately, in the third step, a novel relation is derived to calculate the damage severity of each imminent damaged element. To show the efficiency and quick function of the proposed method, three examples including a 25-bar planar truss, a 31-bar planar truss, and a 52-bar space truss are studied; results of which indicate that the method is innovatively capable of suitably detecting, for indeterminate trusses, not only damaged elements but also their individual damage severity by carrying out solely one analysis.

• 한국환경과학회지
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• 제23권4호
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• pp.649-660
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• 2014

Spatial and temporal patterns of precipitation and temperature occur with regard to aspect and elevation of Mt. Halla in Jeju Island. Therefore, there is a need to predict regional drought associate with them to mitigate of impacts of drought. In this study, regional drought is predicted based on Palmer drought severity index (PDSI) and standardized precipitation index (SPI) using future (2015~2044) climate change scenario RCP (representative concentration pathways) 4.5 classified as 24 regions according to aspect and elevation. The results show that number and duration of drought will be decrease in Jeju Island. However, severity of severe drought will be increase in western and northern aspect with under 200 meters above mean sea level. These findings provide primary information for developing the proactive strategies to mitigate impacts of drought by future climate change in Jeju Island.

• 한방안이비인후피부과학회지
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• 제31권1호
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• pp.106-116
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• 2018

Objectives : The aim of this study is to report the effect of Traditional Korean Medicine Including SaengRyoSaMultang-Gamibang and Hwangryunhaedok-tang Herbal-Acupuncture on the treatment of psoriasis. Methods : A patient with psoriasis was treated with SaengRyoSaMultang-Gamibang, Hwangryunhaedok-tang Herbal-Acupuncture, Aroma therapy, Acupuncture. The severity of psoriasis was assessed with Psoriasis Area and Severity Index(PASI). Results : After treatment, the patient showed that itching symptoms was disappeared and score of PASI changed from 23.4 to 2.9. Conclusions : According to the result, These findings suggest that Traditional Korean Medicine can be effective for the treatment of psoriasis.

• 한방안이비인후피부과학회지
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• 제24권3호
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• pp.27-36
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• 2011

Objective : The purpose of this clinical research was to analyze the correlation between disease severity and disease specific quality of life adjusted by general quality of life measure in adult patients with atopic dermatitis attending Wonkwang Univ. Sanbon Oriental Medical Center. Methods : A total of 35 patients participated in atopic dermatitis clinical trial from June 1st, 2010 to June 30th, 2011 were included in this study. SCORing Atopic Dermatitis(SCORAD) index, Dermatologic Life Quality Index(DLQI), Health Utility Index III(HUI-III) and EuroQoL 5-Dimension(EQ-5D) have been estimatied. Baseline statistical analysis and normality test were done by using Student t-test, Shapiro-Wilk test and ladder test. Pearson analysis and Spearman analysis were conducted to examined the correlation of each variables. Hierachial regression analysis was performed using related variables. Statistical significance was achieved if the probability was less than 5%. Results : There were statistically significance between DLQI and SCORAD index, and also between DLQI and EQ-5D. However there was no significant between DLQI and HUI-III. In the hierachial regression analysis, after adjusting for demographic variables (gender, age) and general quality of life (EQ-5D), SCORAD index significantly predict the intensity of disease specific quality of life (DLQI). Conclusions : We confirmed the correlation between SCORAD index and DLQI, and developed the inference for regression equation of DLQI using SCORAD index, EQ-5D and demographic variables.

• 한국수자원학회논문집
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• 제51권6호
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• pp.471-479
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• 2018

본 연구는 기상학적 및 수문학적 가뭄지수를 이용하여 가뭄사상의 첨두 심도 발생시점과 가뭄발생 기간에 대한 연구를 수행하였다. 연구를 수행하기 위해 사용한 가뭄지수로 기상학적 가뭄지수는 표준강수지수(Standardized Precipitation Index, SPI)를 사용하였으며, 수문학적 가뭄지수로는 하천가뭄지수(Streamflow Drought Index, SDI)와 표준하천유량지수(Standardized Streamflow Index, SSI)를 이용하였다. 연구 대상지역은 농촌과 도시가 공존하는 청미천 유역을 선택하였으며, 평가기간은 1985년 1월부터 2017년 6월까지 32.5년을 평가하였다 하천유량은 SWAT 모형을 이용하여 산정하였다. 수집한 데이터를 이용하여 가뭄지수를 산정한 후에 시계열을 토대로 가뭄의 특성을 분석하였다. 그 결과 수문학적 가뭄은 기상학적 가뭄이 발생한 후에 발생하는 것을 확인할 수 있다. SDI가 SSI보다 SPI와의 첨두 발생시점, 가뭄 시작일의 차이와 평균 가뭄기간이 더 크게 나지만, 가뭄지수의 심도를 비교해보면 일반적으로 SSI가 SDI 보다 심각한 심도를 나타내고 있다. 그러므로 가뭄의 특성을 확인하기 위해서는 기상학적, 수문학적 가뭄지수 등 다양한 가뭄지수를 검토해야 한다.

• Tuberculosis and Respiratory Diseases
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• 제61권4호
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• pp.347-355
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• 2006

배 경: 지속적인 노력에도 지역사회폐렴에 의한 사망률은 증가하고 있으며 서구에서는 이에 대한 적절한 접근 및 예후 평가를 위해 예후 인자들을 확인하려 하였고 종합적인 접근을 위해 Pneumonia Severity Index(PSI) 등의 지표를 개발하였다. 하지만 국내에서는 단순 지표들만을 이용한 연구에 그치고 있어 PSI를 이용하여 폐렴으로 입원한 환자의 예후에 종합적인 접근을 할 수 있는지 확인하고자 하였다. 방 법: 2002년 1월부터 2005년 1월까지 지역사회폐렴으로 입원한 179명의 환자들을 대상으로 생존군/사망군 그리고 일반병실 입원환자/중환자실 입원 환자 사이를 비교하였으며, 각 군에 대해 Pneumonia Severity Index를 분석하였다. 결 과: 사망군과 생존군 사이에는 평균 수축기 혈압, 평균 이완기 혈압, 평균 맥박수, 평균 호흡수, 평균 체온, albumin, LDH, total cholesterol, HDL, PT, aPTT, hemoglobin, blood urea nitrogen(BUN)에서 유의한 차이가 있었다. (p<0.05) 일반병실과 중환자실 입원환자 사이에는 평균 맥박수, pH, $pCO_2$, $pO_2$, $SaO_2$, 혈청 총 단백질, 알부민, 혈청 총 칼슘, LDH, 총 콜레스테롤, HDL, PT, aPTT, hemoglobin, blood urea nitrogen(BUN)에서 유의한 차이가 있었다. (p<0.05) Pneumonia Severity Index의 경우 class I에서 사망률이 가장 낮고 class가 증가할수록 사망률이 증가하였으며 class V에서 사망률이 가장 높았다. 결 론: 다양한 지표들을 이용하여 지역사회폐렴으로 입원한 환자들을 평가할 수 있으나, Pneumonia Severity Index(PSI)를 이용하여 종합적인 접근을 할 수 있으며 이를 국내 환자에게 유용하게 이용할 수 있을 것으로 본다.

• 대한한방부인과학회지
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• 제29권3호
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• pp.91-99
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• 2016

Objectives: The purpose of this study is to report the effect of Korean medical treatment on a patient with atopic eruption of pregnancyMethods: Patient who diagnosed by atopic eruption of pregnancy was enrolled in this study. She received Korean medicine therapies such as herbal medicine, acupuncture and external application. Sopungchungyoung-tangs and Seungmahwangryeon-tangs were prescribed according to the patient’s constitution which was pungyeol. The severity of symptom was evaluated by the severity SCORing for Atopic Dermatitis index (SCORAD index).Results: Subjective symptom such as Systemic pruritus, sleep loss, and Dermatitis lesions was reduced by Korean medicine therapies.Conclusions: The present study suggests that Korean medicine therapies have a effect on atopic eruption of pregnancy.

• Tribology and Lubricants
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• 제15권3호
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• pp.265-271
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• 1999

Wherever there are rotating equipment and contact between surface, there is wear and the generation of wear particles. The particles contained in the lubricating oil carry detailed and important information about the condition monitoring of the machine. This information may be deduced from particle shape, composition, size distribution, and concentration. Therefore, This paper was undertaken to Ferrography system of wear debris generated from lubricated moving machine surface. The lubricating wear test was performed under different experimental conditions using the Falex wear test of Pin and V-Block type by Ti(C, N) coated. It was shown from the test results that wear particle concentration (WPC) and wear severity Index( $I_{S}$), size distribution in normal and abnormal wear have come out all the higher value by increases sliding friction time. Wear shape is observed on the Ferrogram it was discovered a thin leaf wear debris as well as ball and plate type wear particles. This kind of large wear shape have an important effect not only metals damage, but also seizure phenomenon.

• 대한상한금궤의학회지
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• 제7권1호
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• pp.45-52
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• 2015

Objective : This case report aims to demonstrate the effect of Oryeong-san on Insomnia. Methods : A 26 year old woman suffered from insomnia with mental and physical exhaustion, reduced stamina, lack of concentration in daytime. According to Diagnostic system based on Shanghanlun provisions, the patient was diagnosed with Taeyang-byung and treated by Oryeong-san decoction. The result of administration was evaluated by Insomnia Severity Index. Results : After administration of Oryeong-san decoction for 1 month, Insomnia Severity Index was decreased from 24(clinical insomnia, severe) to 1(no clinically significant insomnia). Conclusions : The patient completely recovered from insomnia and daytime symptoms as treated by Oryeong-san decoction according to Diagnostic system based on Shanghanlun provisions.

• 대한기계학회논문집A
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• 제24권10호
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• pp.2420-2427
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• 2000

In contacting between surface, there is wear and the generation of wear particles. The particles contained in the lubricating oil carry detailed and important information about the condition monitoring of the machine. Therefore, This paper was undertaken for Ferrography system of wear debris generated from lubricated moving machine surface. The lubricating wear test was performed under different experimental conditions using the Falex wear test of Pin and V-Block type by Ti(C,N) coated. It was shown from the test results that wear particle concentration(WPC) ; wear severity Index(IS) and size\distribution have come out all the higher value by increases sliding friction time. By the Ferrogram a thin leaf wear debris as well as ball and plate type wear particles was observed.