벡터형 공간객체 중심의 인터넷 원격 동영상 지도 서비스에 대한 실증적 고찰

엄정섭,이보미 한국지리정보학회 2003 한국지리정보학회지 Vol.6 No.2

벡터형 공간 객체는 장거리에 걸쳐 존재하고 있으며 폭이 좁은 특성을 가지고 있다. 벡터형 공간 객체에 대한 영상지도를 제작하기 위해서는 통상의 면형 영상지도에서 사용되는 기법과 전혀 다른 접근이 필요하다. 벡터형 공간 객체의 이와 같은 특성을 고려하여 원격동영상과 인터넷 GIS 기술을 결합한 영상지도 제작기법이 개발되었다. 인터넷상에서 원격동영상과 수치지도의 결합은 지형경관의 실제 모습을 시각적으로 제시할 수 있는 등 두 가지 기술의 장점을 효율적으로 활용할 수 있다. 원격 동영상지도는 사용자가 다양한 검색 방법에 의거 광역 공간정보를 단시간에 체험할 수 있는 기회를 제공하였으며 전통적인 지도는 위치 정보를 제공하여 동영상에 나타나는 물체가 실시간대에 확인할 수 있도록 하였다. 동영상 지도는 전통적인 지도학에서 확립된 지도의 개념 자체에 대한 재정립을 요구하게 되는 바, 본 연구는 ‘벡터형 공간 객체에 대한 인터넷 원격 동영상 지도’라는 새로운 개념을 제시하였다는 데 가장 큰 의의가 있다. 향후 본 시스템이 도입되어 본격적으로 서비스 될 경우 주민들에게 벡터형 공간 객체에 대한 다양한 유형의 영상정보-다른 축척, 다양한 응용분야-를 제공하여 지리정보의 대중화를 더욱 촉진할 수 있을 것으로 사료된다. The vector shaped object is generally very long (hundreds of thousands of kilometers) and very narrow (10-100 meters). Image mapping techniques and tools for these objects should be totally different from the traditional area-based targets. Acknowledging these unique characteristics of the vector shaped object, a motion picture mapping system has been developed by combining internet GIS technology with airborne video. In particular, integration between airborne video and digital maps took advantage of each component, and enabled the landscape structure to be visualized, interacted with and deployed all on the Web. The motion picture maps provided a completely new means for disseminating information for area-wide landscape in a visual and interactive manner to the general public while digital map with location information revealed successfully the major parameters that influence an area-wide spatial structure in the study area. The remote video approach breaks down the usual concept of image mapping in a conventional cartography. As a result, the research findings have established the new concept of 'internet airborne video mapping for vector shaped object', proposed as an initial aim of this paper. It would play a crucial role in improving the quality of public information service if the mapping system is operationally introduced into the Government since the highly user-friendly moving picture provides a completely new means for disseminating spatial information for vector shaped object.

조리방법에 따른 식품 중 영양소 잔존률(retention factor)에 관한 연구(Ⅰ) : 채소류 및 감자류 Vegetablesn ane potatoes

김대병,장영미,김인복,이혜영,장재희,박정현,엄세정 식품의약품안전청 2000 식품의약품안전청 연보 Vol.4 No.-

조리조건에 따른 식품의 영양소 잔존를을 측정하여 보다 정확한 조리식풍에 의한 영양소 섭취량을 평가할 수 있도록 하기 위하여 합리적인 영양소섭취량 조사, 영양 평가를 위한 개선책을 제시하고자 끓였다. 대상 시료와 조리법은 시금치(데치기, 끓이기), 배추(끓이기), 콩나물(데치기, 끓이기), 호박(끓이기, 볶기). 당근(끓이기, 볶기), 우엉(조림), 감자(끓이기, 볶기)이었으며, 조리 전 후의 비타민 A(β -carotene), Bl, B2, C, E, 나이아신, 칼슘, 철, 아연, 칼륨, 인, 나트륨의 함량을 분석하여 조리법에 따른 잔즌률을 국하였다. 조리조건별 잔존률을 구한 결과 무기질은 데치기의 경우 조리수를 제거하므로 손실이 있었으나 끓이기, 볶기 등의 조리법에서는 손실이 거의 없었다. 비타민 A와 I는 대부분 80%이상으로 많이 손실되지 않았으며 비타민 Bi은 데치기가 가장 낮았고, 조림, 괄이기, 볶기의 순으로 잔존률이 높았다. 비타민 B2와 나이아신은 비타민 Bi보다는 잔존를이 높은 경향이었다. 비타민 C는 대부 분의 조리법에서 크페 손실되었다. 본 연구의 결과는 합리적이고 정확한 영양소 섭취량 평가를 위한 기초자료로서 기존의 평가방법을 개선 보완하여 영양소섭취량 평가으 과학화에 기여할 것으로 기대된다. In various mutrition activities, the necessary values of nutrient intake were usually calculated from food composition tables which have nutrient contents of raw ingredients and dishes, but Korean food composition tables of dishes were lacking, So we studied todetermine the nutnent retention factors(RF) of vegetables and potatoes by cooking methods. Atfirst, we surveyed cooking methods of vegetables and potatoes, and selected major vegetablesand cooking methods. Selected items and cooking methods were sp.mach(blanching and boiling),cRnese cabbage(boiling), soybean sprout(bBanchlng and boiling), pumpkin(boiling andstir-frying), carlot(boiling and stir-frying), burdock(braising), and potato(boiling and stir-frying)We analyzed 6 vitamins luhich were vitamin A(β-carotene), Bl, B2, C, E, and niacin, and 6minerals which were calciurrl, iron, zinc, potassium, phosphorus, and sodium. The results wereas follows : Minerals almost retained in boiling, stir-frying, except in blanching method, RF ofvitamin A and I were 80% or more. RF of vitandn Bl were decreased in order of sfir-frying,boiling, braising, blanching and the RF of vitamin B2 and niacin were higher than vitandn Bl,RF of the vitamin C were varird in So~90% in all cooking methods

Comparison of a single dose of depot goserelin with multiple daily doses of Leuprolide acetate in short and Long protocols for pituitary suppression during IVF treatment

( Mi Jung Um ),( Soo Ah Kim ),( Heung Yeol Kim ),( Hyuk Jung ) 대한산부인과학회 2008 Journal of Womens Medicine Vol.1 No.2

Objective: To compare the efficacy of three methods, involving two different gonadotropin-releasing hormone agonist (GnRH-a) formulations, on pituitary down-regulation in women undergoing controlled ovarian hyperstimulation (COH). Methods: Fifty-two cycles using depot goserelin (group 1), 58 cycles using daily leuprolide acetate in a short protocol (group 2), and 97 cycles in a long protocol (group 3) were compared. The total dose of human menopausal gonadotropins (HMG), the duration of ovarian stimulation, the number of aspirated follicles, the number of oocytes retrieved, the number of embryos transferred, the pregnancy rates, and the miscarriage rates were analyzed. Results: There was no difference among the three groups with respect to age, the number of follicles aspirated, the number of oocytes retrieved, and the number of embryos transferred. The mean number of HMG ampoules used for superovulation and the number of days of HMG administration were significantly higher in group 1 and lower in group 2. The pregnancy rates were slightly higher in group 3 and the miscarriage rates were higher in group 2; however, there was no statistical differences among the 3 groups. Conclusion: The leuprolide acetate group produced significant financial savings compared with the goserelin group. The long protocol using leuprolide acetate is the preferred method for pituitary suppression in IVF when costs, pregnancy rates, and miscarriage rates are considered.

Combination Therapy of Raloxifene and Alendronate for Treatment of Osteoporosis in Elderly Women

( Mi Jung Um ),( Eun A Cho ),( Hyuk Jung ) 대한폐경학회 2017 대한폐경학회지 Vol.23 No.1

Objectives: To evaluate and compare the efficacy and safety of the combination of raloxifene and alendronate with those of monotherapies in elderly women with osteoporosis. Methods: Sixty-two postmenopausal women (mean age 63.5 ± 0.5 years) attending gynecologic osteoporosis clinics with established osteoporosis were randomly allocated to one of four treatment groups and monitored for 3 years. All patients enrolled in this study, including those in the control group (n = 14), received 1.0 g elemental calcium and 400 units of vitamin D per day. The raloxifene group (n = 16) received raloxifene 60 mg (Evista^®) per day; alendronate group (n = 17) received low-dose (5 mg) alendronate with calcitriol 0.5 μg (Maxmarvil^®) per day; and the combination therapy group (n = 15) received both raloxifene 60 mg and low-dose (5 mg) alendronate with calcitriol 0.5 μg. Bone mineral density (BMD) was measured in the lumbar spine and hip before and after 3 years of treatment. Results: In patients who received the combined therapy, BMD increased in the lumbar spine and the hip by 7.2% (P < 0.001) and 4.8% (P < 0.001) at 3 years. For patients in the alendronate group, the increases were 6.7% (P < 0.001) and 3.1% (P < 0.01) respectively, for the raloxifene group, the increases were 4.36% (P < 0.001) and 1.9% (P < 0.05) in the vertebrae and femora, respectively; however, the BMD of patients in the control group decreased by 1.81% (P < 0.05) and 1.6% (P < 0.05), respectively, after 3 years. Patients who received the combination therapy had significantly higher BMD in both the vertebrae femora (P < 0.01) in comparison to that in those treated with raloxifene or alendronate individually. Conclusions: This 3-year randomized study showed the improved effects of alendronate and raloxifene combination on spine and hip BMD in elderly postmenopausal women with established osteoporosis. (J Menopausal Med 2017;23:56-62)

복합 이벤트 처리를 위한 고속 벌크로딩 지원 대용량 트리플 저장소

엄정호(Jung-Ho Um),김태홍(Taehong Kim),황미녕(Mi-Nyeong Hwang),서동민(Dongmin Seo),최성필(Sungpil Choi),이승우(Seungwoo Lee),정한민(Hanmin Jung) 한국정보과학회 2014 정보과학회논문지 : 데이타베이스 Vol.41 No.3

IT 및 과학 기술의 발전으로 수많은 데이터가 생성되는 빅데이터 시대가 도래함에 따라 빅데이터를 이용하여 분석하는 기술이 주목을 받고 있다. 이 중에서 지시적 분석(Prescriptive Analytics) 기술은 현재의 현황을 분석하여 사용자의 미래에 대하여 방향을 제시하는 차세대 분석 기술이다. 이를 위해서는 다양한 데이터 원천으로부터의 분석을 토대로 복합 이벤트 처리가 필요하다. 이는 다양한 데이터 원천으로부터 추출 또는 생성된 트리플 데이터의 분석 정보를 기반으로 한다. 본 논문에서는 이러한 대용량 트리플 데이터를 효율적으로 저장하는 기법을 제안하고, 아울러 사용자에게 빠르게 검색이 가능한 대용량 트리플 저장소를 설계한다. 이를 위해 제안하는 저장소는 트리플 저장을 위해 분산 데이터베이스를 사용하고, 맵리듀스를 활용한 벌크로딩 알고리즘을 설계하였으며, 트리플 검색을 위해 SPARQL 질의 처리 엔진과 분산 데이터베이스를 연계 및 개발하였다. 성능평가를 통해 제안하는 벌크 로딩 기법이 저장 속도에서는 기존 시스템에 비해 2.5배의 성능 향상을 보였으며, 다양한 대용량의 트리플 데이터 셋에 대해서도 효율적으로 저장이 가능함을 보였다. 아울러, 전체 데이터 셋에 대하여 select 질의 시 검색 성능은 평균 1초로 복합 이벤트 처리를 위한 고속 검색이 가능함을 알 수 있었다. Due to the development of IT and scientific technology, huge amounts of data are created so that big data age has come. Among many big data techniques, big data analytics technique is concentrated on. Especially, prescriptive analytics techniques are next analytics technique because it can give the future"s directions by analyzing current status. For this, it needs complex event processing which analyzes the data from many data sources. Complex event processing is based on the analyzing information from triple data or extraction data on a variety of data sources. In this paper, we propose the bulk-loading technique for large triple enabling to store the data efficiently and design triple store to respond the user"s query quickly. For this, the proposed triple store uses distributed database. And we design bulk-loading algorithm using MapReduce framework and develop SPARQL query processing engine connecting to the distributed database. Experimental results show that the proposed bulk-loading technique has 2.5 times better than legacy system in terms of loading performance. Also, the results show that the bulk-loading technique can store various large triple data set efficiently. The select query response for whole data set is approximately 1 second. It shows that the proposed triple store supports fast search for complex event processing.

분화된 3T3-L1 세포와 비만유도 쥐에 꽃송이버섯 추출물의 지질분해 효과

이미애(Mi-Ae Lee),박진경(Jin-Kyung Park),엄미향(Mi-Hyang Um),전정우(Jung-Woo Jeon),이정민(Jung-Min Lee),박유경(Yoo-Kyoung Park) 한국식품영양과학회 2012 한국식품영양과학회지 Vol.41 No.12

본 연구에서는 꽃송이버섯 추출물을 처리하여 분화된 3T3-L1 지방 세포와 비만 유도 쥐에서 지질분해 효과를 살펴보았다. In vitro, preadipocyte에서 MTT assay를 이용하여 세포독성 실험을 한 결과 시간, 농도에 관계없이 세포 생존율에 영향을 미치지 않았고, 분화된 지방세포에서의 지방분해 효과는 농도 의존적으로 감소되는 것을 확인할 수 있다. 이외에도 지방세포에서 지방분해 산물인 glycerol 양을 측정한 결과 48, 72시간에서 시간, 농도 의존적으로 유의성 있게 증가하였다. Lipolytic enzyme의 CPT-1 및 UCP-2 발현을 측정하기 위해 Western blot assay를 실시한 결과 꽃송이버섯 열수추출물이 CPT-1 및 UCP-2의 발현을 증가시키는 것을 확인할 수 있었다. In vivo에서 고지방 식이에 의해 비만이 유도된 쥐에 꽃송이버섯 열수추출물을 처리한 후 실험 종료 시 실험동물의 체중은 고지방식이를 공급한 군에 비해 저농도, 고농도 꽃송이버섯을 처리한 군 각각 유의적으로 감소하였다. 실험동물의 장기와 지방조직 무게를 측정한 결과, 대조군에 비해 추출물을 처리한 군에서 체중과 장기 및 지방조직의 감소가 저농도, 고농도 모두 유의하게 나타났으며, 혈청 및 간의 지질함량을 측정한 결과, 혈청지질의 중성지방, 총 콜레스테롤 함량 모두 대조군에 비해 유의적으로 낮게 나타났으며, HDL-콜레스테롤 함량은 유의적으로 높게 나타났다. 간의 지질함량을 측정한 결과 중성지방은 유의적으로 낮게 나타났고 총 콜레스테롤 역시 대조군에 비해 유의적으로 낮게 나타났다. 따라서 혈청 및 간의 지질함량을 측정한 결과 꽃송이버섯 열수추출물이 비만이 유도된 쥐의 혈청 및 간의 지질 농도 변화를 낮추는 효과가 있다고 사료된다. 따라서 꽃송이버섯 열수추출물은 lipolytic enzyme의 발현을 증가시켜 지방산의 산화 반응 및 열 발생에 의한 에너지 소비율을 증가시켜 lipid accumulation을 감소시키며, 이로 인한 체중 감소 및 혈청이나 간의 지질함량을 개선시켜 지질분해 효과를 보여줌으로써 비만 예방 및 치료를 목적으로 하는 식품 소재로서의 활용이 가능할 것으로 생각된다. The purpose of this study was to investigate whether water extracts of Sparassis crispa (SC) have anti-obesity effects. Treatment of mature adipocytes with SC caused a decrease in lipid accumulation (assessed by Oil Red O staining) and an increase in glycerol release. Mice were induced to obesity by a high fat diet (45% fat in total kcal) and experimental groups were treated with two different dosages of SC extracts, a low SC (LSC, 100 mg/kg/day) or high SC (HSC, 300 mg/kg/day). SC extracts were administered by gavages for 10 weeks in the experimental groups, while the control group was fed with distilled water. The body weight gain of mice fed SC was significantly reduced (11.88% lower in LSC, 14.54% lower in HSC) compared to the control group. Additionally, there were significantly reduced serum levels of triglycerides (13.57% lower in LSC, 19.46% lower in HSC), total cholesterol (32.22% lower in LSC, 24.67% lower in HSC) and glucose (28.85% lower in LSC, 25.82% lower in HSC) in mice fed SC compared to the control group. Hepatic triglycerides in mice fed SC were lower (9.68% lower in LSC, 14.24% lower in HSC) than the control group and total cholesterol levels were also lower in mice fed SC (38.72% lower in LSC, 35.20% in HSC). These results demonstrate that the water extract of SC may enhance lipolysis and up-regulate the expression of lipolytic enzymes in vitro and reduce body weight in vivo. These significant effects were found for both low and high doses of SC treatment, and suggest SC can be used as potential therapeutic substances for the prevention and treatment of obesity.

과학기술 발전에 따른 기술인력 직무 변화 추세 진단과 대응방안

엄미정(Mi-Jung UM),서지영,조가원,이원경,박기범,진설아 과학기술정책연구원 2019 정책연구 Vol.- No.-

In the recent rapid technological change, called 4<SUP>th</SUP> Industrial Revolution, engineers and technicians are expected to make big change in their work. The purpose of this study is to prospect that what kinds of challenges Korean engineers and technicians will face, and to find ways for engineers to respond appropriately to recent technological changes. Based on oversea cases, many engineers tasks are changing to simulation, and data-base analysis and planning is expected to increase. And it is expected that there will be many changes in the maintenance work due to the increase in the distance monitoring. In response to these change, continuous training is emphasized. Korea has been responding to various technological changes, but has been concentrating on cultivaing engineers and scientists in the new technology and establishing vocational training programs for job losses and transition. Meanwhile, Korean legal framework for continued training of engineers is scattered among the various laws and is not systematic. Governmental vocational programs that support engineers are limited and, the education of engineers depends heavily on companies, Therefore, it is necessary to comprehensively prepare a policy that responds to the work of engineers due to rapid technological change. It is necessary to prepare students for changes in engineers" career and task. We have to invest in reform in curriculum, improvement of education and research infrastructure of higher education, and supporting career development. In the long term, it is necessary to have a continuous professional development system for engineers.

Synthesis and Evaluation of Variable Temperature-Electrical Resistance Materials Coated on Metallic Bipolar Plates

정혜미(Jung, Hye-Mi),노정훈(Noh, Jung-Hun),임세준(Im, Se-Joon),이종현(Lee, Jong Hyun),안병기(Ahn, Byung Ki),엄석기(Um, Sukkee) 한국신재생에너지학회 2010 한국신재생에너지학회 학술대회논문집 Vol.2010 No.11

For the successful cold starting of a fuel cell engine, either internal of external heat supply must be made to overcome the formation of ice from water below the freezing point of water. In the present study, switchable vanadium oxide compounds as variable temperature-electrical resistance materials onto the surface of flat metallic bipolar plates have been prepared by a dip-coating technique via an aqueous sol-gel method. Subsequently, the chemical composition and micro-structure of the polycrystalline solid thin films were analyzed by X-ray diffraction, X-ray fluorescence spectroscopy, and field emission scanning electron microscopy. In addition, it was carefully measured electrical resistance hysteresis loop over a temperature range from -20?C to 80?C using the four-point probe method. The experimental results revealed that the thin films was mainly composed of Karelianite V₂O₃ which acts as negative temperature coefficient materials. Also, it was found that thermal dissipation rate of the vanadium oxide thin films partially satisfy about 50% saving of the substantial amount of energy required for ice melting at -20?C. Moreover, electrical resistances of the vanadium-based materials converge on an extremely small value similar to that of pure flat metallic bipolar plates at higher temperature, i.e. T{geq}40?C. As a consequence, experimental studies proved that it is possible to apply the variable temperature-electrical resistance material based on vanadium oxides for the cold starting enhancement of a fuel cell vehicle and minimize parasitic power loss and eliminate any necessity for external equipment for heat supply in freezing conditions.

과학기술인력 정년에 관한 이슈와 정책대안

엄미정(Mi-Jung Um),성경모,정성철,이윤경 과학기술정책연구원 2015 정책연구 Vol.- No.-

Our society is certainly in the era of aging population and social concerns about the diminution of productive population and deterioration of potential growth rate are major issues in these days. In this context, "The Prohibition of Age-Discrimination in The Employment and The Employment Promotion Law for The Aged" was revised on May 2013. Since then, institutional framework for the use of older workers has been established. The retirement at 60 is applied to companies with more than 300 employees and the public sector from this year. The studies about the late-career path for scientific and technological human resources have been conducted since the 2000s. However, they just focused on distinct characteristics of scientific and technological human resources, the necessity of their deferred retirement and possible functions for the aged researcher from internal point of view. There is still no active debate on the imbalance of age structure in organization and labor policies such as wage system and career transition etc. Recently, government-supported research institutes are forced to implement the wage peak system which has not been discussed in depth within the science and technology community. They have a difficulty to react to this question. Therefore, we need to find labor market derived factors which may affect the science and technology community and policy measures on the basis of discussions of the retirement and the career transition. This study has purposes to analyze changes in labor market that can occur in the science and technology community and identify policy challenges for reactions in the era of legislated retirement at 60. The analysis in this study mainly focus on cases of government-supported research institutes. This report is composed of seven chapters. The first chapter is the introduction of this study. The chapter 2 and the chapter 3 are discussions of general retirement system. The former mentions about the legislation process of the retirement at 60. The latter summarizes Japanese case. In the chapter 4, we find the settlement process of retirement system and major issues about retirement in the government-supported research institutes. We analyzes about reasonable age of retirement in the chapter 5 and changes of human resources management/career development for the aged researcher in the chapter 6. Finally, we propose future policy plans to change actual situations.

첨단·신기술분야 고급 인력의 육성 및 성장 지원방안

엄미정(Mi-Jung UM),이혜선,백대현,조가원,홍성민,박정호,황은혜 과학기술정책연구원 2021 정책연구 Vol.- No.-

This study focused on the attributes of the new emerging technologies(NET) which are recently received attention such as AI and new material. NETs have different characteristics from the old technologies, and the nature of NETs changes the demands of engineers’ skills. Therefore, the training of engineers should also change. The feature of NET that this study focused on is ‘enabling’ attribute, which is to create new value by combining with other domains or systems. Due to this feature, the demand for engineering workforce faces the following changes. First, the demand for domain knowledge, which NET applied to, increases. Due to rapid technological change, the companies preferred the engineers with NET knowledge and also the applied domain knowledge. Second, the demand for high-level engineers in NETs increases. Third, the demand of engineers changes rapidly and the uncertainty of changing direction grows. Because the period to train engineers s takes a long time, it is necessary to change policies for cultivating a new engineers. In response to the changed technological features, this report suggests the following policies. First, as an alternative to reinforcing domain knowledge, a business association (association, etc.) should prepare a place for students to experience each domain knowledge outside the university (or at the school center). Second, in order to foster high-level engineers, it is necessary to understand the growth path of advanced engineers. Third, constant monitoring is required to respond to rapid changes and grown uncertainties of NETs.