Development of a Mobile Application, "Wild Flowers of Bukhansan National Park (version 1.0)", for Identification of Plants in Bukhansan National Park

Kim, Sang-Tae,Lee, Seung-Yeon,Kim, Seung-Chul,Byun, Hye-Won,Lee, Sang-Tae,Kim, Mu-Yeal,Hong, Seok-Pyo,Chung, Young-Jae,Park, Ki-Ryong,Lee, Chung-Hee,Lee, Joong-Ku,Heo, Kyeong-In,Lee, Ji-Ye,Lee, Eun-Je National Science Museum of Korea 2011 Journal of Korean nature Vol.4 No.3

We developed the educational purpose mobile application, named "Wild Flowers of Bukhansan National Park (version 1.0)", aiming for easy identification of wild flowers for students and visitors in the park. When visitors find a flower or part of plant in the park, visitors can search for its name utilizing the pictures and characters provided in their own smartphone mobile devices or tablet PCs. The application provides pictures of wild flowers in the park and character-based searching system based on 12 diagnostic features (e.g., growth form, leaf arrangement, flower symmetry, petal color, petal number, sepal number, etc). We adopted the complete floristic survey of Chung and Lee (1962) and added species that we confirmed their distribution in the park during the development of this application. In summary, number of vascular plants in this park was estimated to be 428 taxa including 100 families, 280 genera, 327 species, 1 subspecies, 50 varieties, and 5 formas. We provided a total of 588 pictures representing 358 taxa and each taxon includes multiple pictures in many cases. Included identification quizzes can be an efficient educational tool as well as fun activity for students and visitors who are learning plant species in Korea. Our next step will include GPS function in the application for indicating visitor's location and for providing previously reported sites of the species that we interested in the map of the park. The future application which includes GPS function will be a valuable tool for the monitoring of rare plants, plant researches related to the climate changes, etc. We currently provide Korean iPhone version only, and English version and both of android versions will be serviced soon.

국립공원관리를 위한 위성영상 활용방안에 관한 연구 - 북한산 국립공원을 사례로 -

박경(Kyeong Park),장은미(Eun Mi Chang),신상희(Sang Hee Scene) 한국환경영향평가학회 2001 환경영향평가 Vol.10 No.3

National Parks in Korea occupy about four percents of South Korean land. This paper aims to prove the potentiality of the application of remotely sensed data for the effective management of National Parks. Different satellite images such as Landsat TM, IRS-1C, Alternative image, and IKONOS image are analyzed for the detection of changes, the extraction of degraded areas, and the comparison of Normalized Difference Vegetation Index (NDVI) in Bukhansan National Park. The artificial structures such as buildings and paved areas are overvalued in relatively higher resolution data. The result showed that the choice of images should be determined according to specific purposes and the combination of different resolution data may be the solution for the effective management of National Park.

담도에 국한되어 증상을 유발한 석회쓸개즙 2 예

윤성우,이지영,하경호,이수경,한나,배효근,박선자 고신대학교 의과대학 2010 고신대학교 의과대학 학술지 Vol.25 No.2

Limy bile is a rare condition characterized by excessive precipitation of calcium carbonate in the gallbladder or bile duct. Recently we experienced two cases with obstructive jaundice in which limy bile in the common bile duct but not in the gallbladder for one case, and in the common bile duct and intra hepatic duct but not in the gallbladder for another case. The patients were treated by endoscopic sphincterotomy. Here, we report the cases and review the literature.

2×2 교차설계에 의한 생물학적 동등성 시험에서 결측치가 있을 때의 통계적 해석 방법

박상규,이재영,최성업,윤미경,이재휘,최영욱 한국약제학회 2004 Journal of Pharmaceutical Investigation Vol.34 No.5

Statistical interpretations in a bioequivalence trial are considered and studied when the missing observations occurred in 2 × 2 crossover experiment. Patel (1985) suggested the approximate test procedures for carryover effect and drug effect in 2 × 2 crossover design when some of data are missing in the second period. A modified Patel method is newly pro-posed to the bioequivalence trial and it is compared with the current method through the simulation study.

간에서 보이는 직선연 징후의 CT 소견

박성태,이현경,김정혜,이성우 동국대학교 의학연구소 2000 東國醫學 Vol.7 No.-

목적 : 전산화단층촬영(CT) 에서 조여증강 전, 후에 간 내에서 관찰되는 직선연 징후(straight border sign)의 그 원인에 따른 영상소견을 알아보고자 한다. 대상 및 방법 : 복부 CT에서 간내에서 직선연 징후를 보이는 9례를 후향적으로 분석하였다. 원인 질환은 간전이, 간세포암, 외상성 간손상이 각각 1례와 간농양, 재발성화농성담도염, 그리고 지방간 각각 2례였다. 결과 : 전이암과 간세포암 각각 1례에서는 종양의 문맥침범으로 인하여 그리고 간농양과 재발성화농성담도염 각각 2례에서는 염증이 있는 간엽으로의 스틸현상에 의해 직선연으로 경계되는 간 엽간의 조영증강의 차이가 있었다. 외상성 간손상 1례에서는 간문맥과 동맥의 손상에 의한 쐐기모양의 간경색이 관찰되었으며 2례의 지방간에는 간우엽에 갠틀리선을 경계로 하는 저음영이 관찰되었다. 결론 : CT 영상에서 간내 직선연 징후가 보일 때 음영의 분포 (해부학적 또는 비해부학학적), 감쇠도(고감쇠 또는 저감쇠), 그리고 조영증가 유무와 그 방법에 대한 지식을 모두 고려하여야 할 것으로 생각된다. Purpose : We demonstrate computed tomography (CT) appearances of straight border sign of liver and correlate with its causes. Material and Methods : We retrospectively reviewed nine cases of abdominal CT scan that showed the straight border sign. Underlying disease were liver metastasis (n=1), hepatocellular carcinoma (n=1), traumatic liver injury (n=1), liver abscess (n=2), recurrent pyogenic cholangitis (n=2), and fatty liver (n=2). Results : Attenuation differences of liver bordered by the straight line were depicted in various conditions. These conditions are the followings : portal vein invasion in case of liver metastasis and hepatocelluar carcinoma ; steel phenomenon in case of liver abscess and recurrent pyogenic cholangitis ; and hepatic artery and portal vein injury in case of traumatic liver injury. Lobar fatty liver lesions were also seen in right lobe bordered by straight line. Conclusion : To correctly interpret the straight border sign, we should consider the distribution (anatomic vs nonanatomic), the attenuation (low vs high), and the use and technique of contrast enhancement.

Failure Diagnosis Method of Photovoltaic Generator Using Support Vector Machine

Kyeong‑Hee Cho,Hyung‑Chul Jo,Eung‑sang Kim,Hyang‑A. Park,박준호 대한전기학회 2020 Journal of Electrical Engineering & Technology Vol.15 No.4

The capacity of photovoltaic (PV) generators can increase owing to the 4030 policy of the Government of South Korea.. In addition, there has been signifcant interest in developing a technology for the maintenance of PV generators owing to an increase in the number of outdated PV generators. This paper describes a failure diagnosis method that uses operational data for power generation and solar radiation of PV generators. The measured data stored since four years in an operational 50-kW PV generator that was installed in 2014, were analyzed. The proposed failure diagnosis logic uses support vector machine classifcation as a failure diagnosis method that can classify normal and failure data. The failure data were processed to be used as the fault diagnosis logic for solar power generators. A new 50-kW PV generator, which contained no fault data, was used for a case study in this paper. Fault data were generated and the operation data of the PV generators were diagnosed by applying the proposed method. In addition, the accuracy was calculated and the results were analyzed.

일차의료에 내원한 성인에서 대사증후군의 유병률 및 관련 요인에 대한 연구

박혜순,신호철,김병성,이가영,최환석,신정아,남윤덕,배상필,천경수 대한비만학회 2003 The Korean journal of obesity Vol.12 No.2

연구배경: 심혈관 질환은 치근 국내에서 그 발생률과 유병률이 급증하여 점점 중요한 국민 건강 문제로 대두되고 있다. 2001년 NCEP ATP Ⅲ에서는 대사증후군에 대해 임상적으로 손쉽게 적용할 수 있는 기준을 제시하면서 심혈관 질환의 주 관리 차상으로 취급하였다. 본 연구에서는 일차의료에서 대사증후군의 유병률을 파악하고, 대사증후군과 관련된 요인을 규명하여 한국인에게 적절한 대사증후군 관리전략을 개발하고자 하였다. 방법: 전국 9개 병·의원 가정의학과에 내원한 20세 이상 80세 미만 성인에서 건강 문제와 무관하게 연속적 조사를 시행하여 총2,134명이 연구에 참여하였다. 대사증후군에 대해서 복부비만은 남자 ≥ 90cm, 여자 ≥ 80 cm으로 하였고 다른 위험인자들은 NCEP ATP Ⅲ의 기준에 따라 정의하였다. 신체 계측, 심혈관 위험인자를 측정하고 생활 습관을 조사하여 대사증후군의 유병률과 관련 요인을 파악하였다. 결과: 일차의료에 내원한 성인에서 대사증루군의 유병률은 남자에서 31.3%, 여자에서 29.5%로 나타났으며, 연령이 증가할수록, 비만도가 증가할수록 대사증후군의 유병률이 높아지는 경향을 나타냈다. 남자에서는 연령, 고소득, 비만, 과다 음주. 과다 흡연이 대사증후군의 관련 요인으로, 여자에서는 연령, 무직, 비만, 심혈관 질환의 가족력, 중등도의 스트레스가 관련 요인으로 나타났다. 결론: 대사증후군은 일차의료에 내원하는 성인 중 비교적 흔하게 나타나는 건강 문제로 약 30%의 유병률을 보였다. 일차의료에서 무증상 성인에게도 허리둘레 측정, 심혈관 위험인자 검사 등 대사증루군의선별검사에 의한 조기 발견과 예방적 차원의 관리가 필요하다고 하겠다 Backgroud: Cardiovascular disease is becoming an important national health issue since its recent increase in incidence and mortality. Despite the significant increase in mortality rate of cardio-vascular disease in Korea, there have been no specific studies concerning metabolic syndrome. The aim of this study was to assess the prevalence of metabolic syndrome and to evaluate the associated factors among adults who visited the primary care. Methods: A total of 2,134 subjects aged 20-79y were recruited from nine primary care clinic. The metabolic syndrome was defined by NCEP ATPⅢ criteria, however, abdominal obesity was assessed by ≥90cm in men and ≥80 cm in women. Anthro-pometric variables and cardiovascular risk factors were measured, and lifestyle factors were assessed through a questionnaire. Results: The prevalence of metabolic syndrome was 31.3% and 29.5% in men and women, respectively. The risk factors associated with metabolic syndrome, in common for both genders, were found to be age, and obesity. Excessive alcohol intake, and heavy smoking were also found to be risk factors of metabolic syndrome in men whereas moderate stress and family history of cardiovascular disease served as risk factors in women. For both genders, greater increase in body weight correlated with higher risk of metabolic syndrome. Conclusion: The prevalence of metabolic syndrome is presumed to be high considering the fact that it is commonly encountered in primary care, therefore a screening program for prevention and management of metabolic syndrome is required.

상부요추부수핵탈출증에 관하여

성경훈,김상진,박순필,도종웅 최신의학사 1988 最新醫學 Vol.31 No.2

유방의 과립구성 육종으로 재발한 급성 골수성 백혈병 1 례

박경배,서원석,신상만 순천향의학연구소 2004 Journal of Soonchunhyang Medical Science Vol.10 No.2

Granulocytic sarcoma is a malignant neoplasm composed of poorly differentiated cells of the myelogenous series. Granulocytic sarcoma are reported in 3.1-9.1% of patients with myelogenous leukemia and occur concomitantly, following or rarely antedating the onset of leukemia. Granulocytic sarcomas can occur at various sites of the body and frequently at multiple sites. Involvement of the breast is uncommon. We experienced a case of acute myelogenous leukemia. 12 months earlier, she was diagnosed as acute myelogenous leukemia(M2) and acheived complete remission with KSPHOG ANL regimen. The patient was treated with KSPHOG ANL regimen without radiation therapy. An 20th day, left breast lesion disappeared and complete remission was obtained.

백일해 백신이 Streptozotocin 유발성 당뇨백서의 당대사에 미치는 영향

박상기,문경래,박춘호,김갑승,박영봉,이병래,양남웅 朝鮮大學校 附設 醫學硏究所 1991 The Medical Journal of Chosun University Vol.16 No.1

Streptozotocin(STZ) may produce a permanent form of insulin-dependent diabetes (IDD) in experimental animals. This STZ-induced diabetes has become an useful model to study the pathogenesis of IDD in man primarily because it approximate clinical findings and also because it lends itself easily to controlled manipulation. The diabetogenic activity of STZ, however, is known to be modified by several agents such as nicotinamide, diazoxide, adrenergic blockers and pertussis vaccine (PV). The present study was undertaken to observe the protective effect of PV or boiled pertussis vaccine(bPV; incubating the PV at 80℃ for 30 minutes) against the development of IDD induced by STZ in young rats, and also the effect of PV on the activities of glycolytic & gluconeogeneic enzymes in both liver and muscle of rat. PV at a dose of 1.2×10^(10) microorganism was administrated intrapntoneally on 3days before & 7days after a single injection of STZ (GO㎎/㎏ body wt). The blood glucose and insulin levels were measured at 1st wk, 2nd wk, 4th wk, 6th wk and 8th wk after STZ injection, and the enzyme activities were exemined at 8th wk. The following results were obtained. 1. No significant difference was noted in blood glucose levels between STZ group and STZ+PV or STZ+bPV groups (P>0.05). 2. Blood insulin levels in STZ group decreased significantly from 2nd wk(P<0.05). Compared with STZ group, blood insulin levels in STZ+PV & STZ+bPV groups were higher, but not a significant value except at 2nd wk in STZ+PV grouP (P<0.05). 3. Compared with STZ group, hepatic glycolytic enzyme activities were significantly increased in STZ+PV or STZ+bPV groups, and muscular glycolytic enzyme activities were significantly increased in STZ+PV or STZ+bPV groups. 4. Compared with STZ group, hepatic gluconeogeneic enzyme activities were significantly increased in STZ+PV or STZ+bPV groups. These results suggest that the PV has somewhat protective effects on blood insulin levels and tissue glycolytic enzyme activities in rats, but it could not reduced blood glucose levels significantly, probably because of excessive increase of hepatic gluconeogeneic enzymes.