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.

부분최소자승회귀를 이용한 회귀진단

박진표,정원태 慶南大學校 附設 基礎科學硏究所 1993 硏究論文集 Vol.5 No.-

In this paper, we discuss partial least square(PLS) and principal component regression(PCR) which used when there remains the multicollinearity for finite or moderate smaple in regression analysis. And we suggest method which detect outlier when partial least square is used.

페로브스카이트형 La_(1-x)Sr_xBO_(3±y) (B=Fe,Ni) 복합산화물의 생성 및 반응성

박일현,이형표,황호순,최원석 성균관대학교 기초과학연구소 1989 論文集 Vol.40 No.1

Nonstoichiometry, thermal stability and reactivity in static H2 atmosphere of perovskite-type La_(l-x)Sr_xBO_(3±y)(B=Fe, Ni) mixed oxides were investigated by means of temperature programmed reduction method and X-ray diffraction. Nonstoichiometry of these oxides was determined as following; LaFeO_3.05, La_0.9Sr_0.1FeO_3.0l, La_0.8Sr_0.22FeO_2.95, La_0.7Sr_0.3FeO_2.94, LaNiO_2.93, La_0.98Sr_0.02NiO_2.85, La_0.96Sr_0.04NiO_2.81. From the results of temperature programmed reduction, thermal stability of these perovskites relatively lowered than non-dopant according to the content (x values) of dopant(Sr^2+). According to the kinetic studies, it was revealed that the first and second step reductions in La_(1-x)Sr_xFeO_(3±y) (x=0.1, 0.2, 0.3) oxides and the first step reduction in LaFeO_3.05 oxide and La_(1-x)SrxNiO(3-y) (x=0, 0.02, 0.04) oxides were followed by Ginstling-Broushtein equation, indicating three dimensional diffusion of reactant. The third step reduction in La_(1-x)Sr_xFeO_(3±y) (x=0.1, 0.2, 0.3) oxides and the second step reduction in LaFeO_3.05 oxide were followed by contracting sphere model at reaction interface between reactant and product, and the second step reduction in La_(1-x)Sr_xNiO_(3-y) (x=0, 0.02, 0.04) oxides were fitted Avrami-Erofeev equation, indicating this step was controlled by formation and growth of reaction nuclei via the reaction interface.

粘性土地盤의 N値와 土質特性과의 相關性

홍원표,박성현 중앙대학교 기술과학연구소 2001 기술과학연구소 논문집 Vol.31 No.-

지반조사에서는 원위치시험으로는 표준관입시험, 정적콘관입시험, 동적콘관입시험, 스웨덴 식사운딩시험, 베인시험 등이 실시되고 있다. 특히, 이들 가운데 표준관입시험은 간편하면서도 유용한 원위치시험으로 가장 널리 이용되어져 오고 있다. 표준관입시험으로부터 얻어진 N치는 지반의 지지력, 침하량, 점착력, 내부마찰각, 상대밀도, 변형계수 등 다양한 해석정보를 얻는데 활용되고 있으나, N치의 지반특성과의 관계의 상관성에 대하여 아직 명확히 조사되어있지 않은 실정이다. 본 연구에서는 점성토지반에서의 표준관입시험에 의한 N치와 지반특성의 상관성을 규명하여 보고자 우리나라 서남해안지역의 연약한 점성토 및 내륙지역의 견고한 점성토에 대한 현장지반조사 및 실내시험 자료를 분석하였다. 본 연구의 결과는 결국, Atterberg한계, 자연함수비, 습윤 및 건조밀도, 일축압축강도와 압축지수 등과 같은 물리적, 역학적 특성의 예측에 이용될 수 있을 것이다. In soil investigations, in situ tests, such as standard penetration test, static cone penetration test, dutch cone penetration test, Swedish sounding test, vane test, etc, are performed as a part of main investigation. Especially, standard penetration test is most widely used as useful test in situ. N-value from the standard penetration test could give a numerous interpretation such as judgement of ground bearing capacity, settlements, cohesion, internal friction angle, relative density, modulus of deformation, etc. Nevertheless, in some respect to clear the correlations between N-value and soil properties are not enough yet. In this study, in order to find the correlations between N-value and soil properties in cohesive soils, the soil test data have been analyzed. The data was given by both the field soil investigation and laboratory test performed on soft clay in west and south coasts and stiff clay of inland areas in Korea. The results of this study might be available to predict some soil properties, such as the Atterberg limit, natural water content, wet and dry densities, unconfined compression strength and compression index, by use of the standard penetration test results in fields.

Angiotensin Concerting Enzyme 유전자의 유전적 다형성(Genetic Polymorphism)이 관상동맥 질환 위험인자에 따른 혈중 Plasminogen Activator Inhibitor-1의 농도에 미치는 영향

김덕경,김종원,권현절,류재춘,박승우,김준수,이상훈,홍경표,박정의,이원로 대한고혈압학회 1996 대한고혈압학회지 Vol.2 No.2

Myelodysplastic Syndrome에서 Acute Myelogenous Leukemia로 이행한 1례

오금탁,김원식,박상호,홍순표,조건국 조선의대 1985 The Medical Journal of Chosun University Vol.10 No.1

제주지역에서 소비되는 식품 중 137Cs과 40K 방사능 농도

강태우,홍경애,박원표,유장걸 한국환경농학회 2004 한국환경농학회지 Vol.23 No.1

본 연구는 제주지역에서 소비되는 식품중의 ^(137)Cs과 ^(40)K 방사능 농도를 조사하여, 식 품 섭취에 따른 ^(137)Cs와^(40)K에 의한 내부피폭 선량의 값을 평가함으로써 만일의 원자 력 사고로 인한 방사능 오염에 대처할 수 있는 기초 자료를 확보하고자 수행하였다. 시료로 채위한 식품류는 농산물 31, 축산물 6, 수산물 12, 임산물 4, 그리고 가공식품(차류)이 3종류 였고 방사능 분석은 고순도 게르마늄검출기가 장착된 감마선분광게로 수행하였다. 시료중 ^(137)Cs방사능 농도범위는 농산물이 MDA이하∼ 650 mBq/㎏·fresh, 축산물 MDA이하 ∼131 mBq/㎏·fresh, 임산물 MDA 이하 ∼834 mBq/㎏·fresh,, 수산물 MDA이 하∼ 253 mBq/㎏·fresh, 그리고 가공식품은 320∼483 mBq/㎏·fresh 이었다. ^(40)K의 경 우는 농산물 16.6∼542 Bq/㎏·fresh,, 축산물 39.1∼294 Bq/㎏·fresh, 임산물 85.5∼116 Bq/ ㎏·fresh, 수산물 50.1∼657 Bq/㎏·fresh, 그리고 가공식품 33.6∼1,065 Bq/㎏·fresh, 범위 였다. 시료증 ^(137)Cs 방사능 농도가 가장 높은 것은 표고버섯으로 834 mBq/㎏·fresh 이 었으며, ^(40)K은 커피가 1,065 Bq/㎏·fresh 가장 높았다. 각 식품류 중 ^(137)Cs와 ^(40)K에 의한 연간 유효선량은 농산물이 66,543 nSv로 가장 높았 고, 축산물 19,311, 가공식품(차류) 6,648, 수산물 6,579 그리고 임산물 860 nSv 순으로 낮았 으며 이것을 모두 합한 총 연간 유효선량 값은 99,941 nSv 이었다. 본 연구에 포함된 식품 의 1인당 연간 섭취량이 연간 총 식품 섭취량의 60%임을 감안해도 자연환경 중에서 이루어 지는 외부피폭에 의한 연간 유효선량인 2,400,000 nSv에 비하면 무시할 정도여서 평상시 식 품섭취에 의한 방사선 내부피폭은 매우 미량이었다. 이상의 자료는 유사시 방사선에 의한 식품류 오염정도를 식별하는데 필수불가결할 것으로 사료된다. This work was conducted to provide the reference data of radioactivity in the foodstuffs at a radiological emergency situation in Jeju Island. The sampled foodstuffs were agricultural (31), livestock (6), marine (12) and forest products (4), and processed foods (3) consumed by Jeju Islanders. ^(137)Cs and activities were determined by HPGe Y-ray spectrometry. The activity ranges of ^(137)Cs was <MDA (less than minimum detectable activity-650 mBq/㎏ ·fresh in the agricultural products, <MDA-131 mBq/㎏·fresh in the livestock, <MDA-834 mBq/㎏·fresh in the forest, <MDA-253 mBq/㎏·fresh in the mafine and 32.0-483 mBq/㎏·fresh in the processed foods (tea). In case of ^(40)K, the activity was 166-542 Bq/㎏·fresh in the agricultural products, 39.1-294 Bq㎏· fresh in the livestock, 85.5-116 Bq/㎏·fresh in the forest, 50.1-6.57 Bq/㎏·fresh in the marine, and 33.6-1,065 Bq/㎏·fresh in the processed foods (tea). The highest activity of ^(137)Cs, 834 mBq/㎏·fresh was observed in oak mushroom and ^(40)K, 1,065 Bq/㎏·fresh in coffee. Annual effective doses of ^(137)Cs and ^(40)K by intake of foodstuffs per capita were the following order; agricultural products (66,543 nSv) > livestock products (19,311 nSv) > processed foods (6,648 nSv) > marine products (6,579 nSv) > forest products (860 nSv). Therefore, total annual effective dose was summed 99,941 nSv which is quite low level comparing to the annual effective dose by external exposure, 2,400,000 nSv. The data obtained in this study can be useful for monitoring whether the foodstuffs are contaminated or not at an emergency radiation accident, and showed that the foodstuffs consumed in Jeju are safe in terms of annual effective dose of ^(137)Cs and ^(40)K.

제주지역에서 소비되는 식품 중 ^(137)Cs과 ^(40)K 방사능 농도

강태우,홍경애,박원표,유장걸 제주대학교 방사능이용연구소 2003 연구보고 Vol.17 No.-

본 연구는 제주지역에서 소비되는 식품류 중의 ^(137)Cs과 ^(40)K 방사능 농도를 조사하여, 식품 섭취에 따른 ^(137)Cs과 ^(40)K에 의한 내부피폭선량의 값을 평가함으로써 만일의 원자력사고로 인한 방사능 오염에 대처할 수 있는 기초 자료를 확보하고자 수행하였다. 시료로 채취한 식품류는 농산물 31, 축산물 6, 수산물 12, 임산물 4, 가공식품(차류) 3종류였고 방사능 분석은 고순도 게르마늄검출기가 장착된 감마선분광계로 수행하였다. 시료 중 ^(137)Cs 방사능 농도범위는 농산물이 MDA이하~650 mBq/㎏·fresh, 축산물은 16.6~542 Bq/㎏·fresh, 임산물 MDA이하~131 mBq/㎏·fresh, 수산물 39.1~294 Bq/㎏·fresh, 그리고 가공식품은 MDA이하~834 mBq/㎏·fresh이었다. ^(40)K의 경우는 농산물85.5~l16 Bq/㎏·fresh, 축산물 MDA이하~246 mBq/㎏·fresh, 임산물 50.1~657 mBq/㎏·fresh, 수산물 32.0~483 mBq/㎏·fresh 그리고 가공식품 33.6~l,065 Bq/㎏·fresh 범위였다. 시료 중 ^(137)Cs 방사능 농도가 가장 높은 것은 표고버섯으로 834 mBq/㎏·fresh이었으며, ^(40)K은 커피가 1.065 mBq/㎏·fresh로 가장 높았다. 각 식품류 중 ^(137)Cs와 ^(40)K에 의한 연간 유효선량은 농산물이 66.543 nSv로 가장 높았고, 축산물 19,311, 가공식품(차류) 6.648, 수산물 6,579, 임산물 850 순으로 낮았으며 이것을 모두 합한 총 연간 유효선량 값은 99,941 nSv이었다. 본 연구에 포함된 식품의 1인당 연간 섭취량이 연간 식품 총 섭취량의 60%임을 감안해도 자연환경 중에서 이루어지는 외부피폭에 의한 연간 유효선량 2,400,000 nSv에 비하면 무시할 정도로 평상시 식품섭취에 의한 방사선 내부피폭은 매우 미량이었다. 이상의 자료는 유사시 방사선에 의한 식품류 오염정도를 식별하는데 필수불가결할 것으로 사료된다. This work was conducted to provide the reference data of radioactivity in the foodstuffs at a radiological emergency situation in Jeju Island. The foodstuffs sampled were agricultural(31), livestock(6), marine(12) and forest products(4), and processed foods(3) consumed by Jeju Islanders. ^(137)Cs and ^(40)K activities were determined by HPGe γ-ray spectrometry. The activity ranges of ^(137)Cs were <MDA(less than minimum detectable activity)∼650 m㏃/㎏·fresh in the agricultural products, <MDA∼131 m㏃/㎏·fresh in the livestock, <MDA∼834 m㏃/㎏·fresh in the marine, <MDA∼246 m㏃/㎏·fresh in the forest and 32.0∼483 m㏃/㎏·fresh in the processed foods(tea). In case of ^(40)K, the activity ranges were 16.6∼542 ㏃/㎏·fresh in the agricultural products, 39.1∼294 ㏃/㎏·fresh in the livestock, 85.5∼116 ㏃/㎏·fresh in the marine, 50.1∼657 ㏃/㎏·fresh in the forest, and 33.6∼1,065 ㏃/㎏·fresh in the processed foods(tea). The highest activity of ^(137)Cs, 834 m㏃/㎏·fresh in was observed in oak mushroom and ^(40)K, 1,065 ㏃/㎏·fresh in coffee. Annual effective doses of ^(137)Cs and ^(40)K by intake of foodstuffs per capita were the following order ; agricultural products (66,543 n㏜) > livestock products (19,311 n㏜) > processed foods (6,648 n㏜) > marine products (6,579 n㏜) > forest products (860 n㏜). Therefor total annual effective dose was summed 99,941 n㏜ which is quite low level comparing to the annual effective dose byexternal exposure, 2,400,000 n㏜. The data obtained in this study can be useful for monitoring whether the foodstuffs are contaminated or not at an emergency radiation accident, and showed that the foodstuffs consumed in Jeju are safe in terms of annual effective dose of ^(137)Cs and ^(40)K.

효율적인 군 전직지원체제 정립 방안

정철영,고재관,황원채,윤희철,박가열,김재호,이성식,김동승,표성일,이건남,양안나,최수정,김은석 한국직업능력개발원 2008 직업능력개발연구 Vol.11 No.1

이 연구의 목적은 제대군인에 대한 효율적인 전직지원을 위해서 현행 전직지원 프로세스에 대한 개선 안과 이에 따른 국방부, 국가보훈처 등 제대군인 전직지원관련 기관 간의 역할분담 및 연계방안에 대해서 제안하는 것이다. 연구는 크게 세 가지 과정을 거쳤다. 첫째, 국내 군 전직지원 실태를 분석하여 문제점과 시사점을 도출하였다. 둘째, 이러한 문제점과 시사점, 군 전직지원 선행연구를 종합하여 효율적인 군 전직지원 프로세스 안을 제시하였다. 셋째, 구축한 군 전직지원 프로세스 안에 따라 주요 군 전직지원 관련 기관인 국방부, 국가보훈처의 역할 분담 안을 제안하였다. This study aims to suggest an improvement plan for the support process of effective occupation change for discharged soldiers and then role assignments among related institutions for supporting discharged soldiers such as Ministry of Defense, Ministry of Patriots and Veterans Affairs, Ministry of Labor and the cooperation plan among the institutions. The study was made in three steps. First, after analyzing currents support facts and status for discharged soldiers, it induced its problems and implications. Second, integrating the findings of previous studies related to support plan on occupation changes for the discharged soldiers, Problems and implications mentioned above, it constructed effective occupation change process for discharged soldiers. Then, according to the established process, it suggested role assignments such as Ministry of Defense, Ministry of Patriots and Veterans Affairs, Ministry of Labor.

Relationship Between Soil Physical Properties and Erodibility Factor of Jeju Black Volcanic Ash Soils Under a Rainfall Simulator Condition

Won-Pyo Park,Ho-Jun Kang 한국토양비료학회 2020 한국토양비료학회지 Vol.53 No.1

This study was conducted to determine the validity by comparing the soil erodibility factor (K) values, which were calculated by rainfall simulator conditions (Kobs) and in the Universal Soil Loss Equation (KUSLE) from eight sites of black volcanic ash soils (BVAS) in Jeju Island and developed a new soil erodibility factor equation based on the physical properties of BVAS. The KUSLE value showed negative values in BVAS, indicating other methods for soil erodibility estimation need to be developed. The Kobs value had a significant positive correlation with the runoff rate (p < 0.01) and positively correlated with fine sand (0.02 - 0.2 mm) and clay / (silt + very fine sand). A significant negative correlation was observed between the Kobs and silt (0.002 - 0.02 mm) (p < 0.05), saturated hydraulic conductivity (Ksat), and infiltration rate (p < 0.01), all of which indicate the effect of these physical properties on the soil erodibility factor. As a result of multiple regression analysis, K = - 0.1492 + 0.0036 runoff rate - 0.0908 Ksat + 0.0112 fine sand (0.02 - 0.2 mm) (R² = 0.981, p < 0.01). Therefore, the developed equation may be used as the soil erodibility estimation for USLE to predict soil erosion in BVAS on Jeju Island.