• 벤처창업연구
• /
• 제14권1호
• /
• pp.167-185
• /
• 2019

대부분의 G20 국가에서 향후 수십 년 동안 의료 지출이 급격하게 성장할 것으로 예상하고 있듯이, 고연령 인구와 만성질환자의 증가로 인해 전 세계적으로 의료비 부담은 지속적으로 늘어나고 있으며 의료서비스의 지속적인 질 개선도 해결해야 할 과제로 대두되고 있다. 그러나 헬스케어와 IT 융합의 급변하는 기술 환경 하에서 이런 변화를 제대로 인식하지 못하고 적절한 대비를 하지 않는데서 그 문제가 더 커질 수 있다. 패러다임 변화와 의료 분야 문제 증대 상황에서 기술적, 제도적, 사업적 측면에서의 복합적인 대응이 절실히 필요하다. 핵심은 의료분야에 IT를 융합한 사업에 적합한 비즈니스모델의 도출이라 할 수 있다. 4차 산업혁명시대의 도래와 함께 사물인터넷 등의 신기술이 e헬스케어에 적용되면서 새로운 비즈니스모델의 필요성이 대두 되었다. 기존 인터넷 시대의 e헬스케어에서는 전통적인 조직 기반 (Firm-centric) 비즈니스모델이 되었으나 사물인터넷 시대에는 사물인터넷의 역동성 (Dynamics) 및 복잡성 (Complex)의 특성으로 인하여 단위 조직 (Firm-Centric)보다는 비즈니스생태계 (Business Ecosystem)기반의 접근이 필요하다. 본 논문에서는 사물인터넷 등 이머징 기술 (Emerging Technology)기반의 e헬스케어의 비즈니스생태계에 대한 연구 결과로 e헬스케어 비즈니스생태계의 3-레이어 (Layer) 구조에 기반한 생태계의 주요 발전 인자를 분석 제시한다. 3-레이어 비즈니스생태계는 (1) 인프라 스트럭처 레이어 (Infrastructure Layer), (2) 특성 레이어 (Characteristics Layer) 및 (3) 이해당사자 레이어 (Stakeholder Layer)로 정의하여 분석하였다. e헬스케어 비즈니스생태계의 주요 발전 인자측면에서는 (1) i헬스케어 개념의 도입, (2) 비즈니스생태계의 확장, (3) 비즈니스생태계 변화 프로세스 혁신, (4) 비즈니스생태계 리더쉽 혁신의 4가지 인자를 제안한다.

• 농업과학연구
• /
• 제50권2호
• /
• pp.257-270
• /
• 2023

논(paddy) 환경은 습지로 분류되며 담수환경에서 매우 많은 비율을 차지하고 있다. 또한 많은 수서곤충류 및 양서파충류 유생의 서식지 및 산란 장소로써 생태학적으로 매우 중요하다. 하지만 기후변화 및 무분별한 농약 살포 등으로 인해 논 생태계는 지속적으로 위협받고 있다. 따라서 향후 훼손된 논 생태계를 복원하기 위해서는 복원 기준이 될 수 있는 논 생태계 서식 생물들의 정보가 필요하다. 환경유전자 metabarcoding 분석법은 성체 생활시기가 다르거나 성충으로 우화하여 대상 생태계에서 더 이상 발견할 수 없는 분류군까지 존재 여부를 간접적으로 파악할 수 있기 때문에 논 생태계에 서식하는 많은 생물들의 정보를 축적하는데 매우 효과적이다. 본 연구에서도 4종의 개구리와 9종의 수서곤충 유전자가 발견되었으며, 일부 분류군은 현장에서 개체가 직접 발견되었다. 많은 수의 분류군이 DNA 탐색에서만 발견되었으며, 전통적인 조사방법은 매우 제한적인 분류군만을 확인할 수 있었다. 이러한 eDNA 기반의 논 생물탐색은 강력한 분석 해상도 때문에 농업 생태계 생물다양성 조사에서 활용가치가 매우 높을 것으로 판단된다.

• 한국환경과학회지
• /
• 제19권2호
• /
• pp.217-227
• /
• 2010

This paper was studied $CO_2$ respiration rate with physicochemical properties of soils at wetland, paddy field and forest in Nongju-ri, Haeryong-myeon, Suncheon city, Jeollanam-do. Soil temperature and $CO_2$ respiration rate were measured at the field, and soil pH, moisture and soil organic carbon were analyzed in laboratory. Field monitoring was conducted at 6 points (W3, W7, W13, W17, W23, W27) for wetland, 3 points (P1, P2, P3) for paddy field and 3 points (F1, F2, F3) for forest in 10 January 2009. $CO_2$ concentrations in chamber were measured 352~382 ppm for wetland, 364~382 ppm for paddy field and 379~390 ppm for forest, and the average values were 370 ppm, 370 ppm and 385 ppm, respectively. $CO_2$ respiration rates of soils were measured $-73{\sim}44\;mg/m^2/hr$ for wetland, $-74{\sim}24\;mg/m^2/hr$ for paddy field and $-55{\sim}106\;mg/m^2/hr$ for forest, and the average values were $-8\;mg/m^2/hr$, $-25\;mg/m^2/hr$ and $38\;mg/m^2/hr$. $CO_2$ was uptake from air to soil in wetland and paddy field, but it was emission from soil to air in forest. $CO_2$ respiration rate function in uptake condition increased exponential and linear as soil temperature and soil organic carbon. But, it in emission condition decreased linear as soil temperature and soil organic carbon. $CO_2$ respiration rate function in wetland decreased linear as soil moisture, but its in paddy and forest increased linear as soil moisture. $CO_2$ respiration rate function in all sites increased linear as soil pH, and increasing rate at forest was highest.

• 벤처창업연구
• /
• 제15권4호
• /
• pp.1-15
• /
• 2020

창업생태계가 기업가정신 향상의 선행요소로 밝혀지면서 국가에서는 창업생태계 고도화를 사업들이 활발히 수행되고 있고 관련 연구도 진행하고 있다. 창업생태계는 창업자, 정부기관 및 투자자와 의 상호관계적인 작용으로 기업가정신 뿐만 아니라 국가의 경제성장을 위해 종요한 요소로 관심을 받고 있으나 창업생태계에 대한 정의를 비롯하여 국가별 제도적 및 정치학적 맥락의 상이함으로 인해 측정지표에 대한 비판이 증가하고 있다. 본 연구에서는 국내 실정에 적합한 창업생태계 지표개발 및 각 지역의 창업생태계 수준을 측정할 수 있는 지표를 개발하고자 한다. 창업 분야별 전문가의 FGI 및 델파이 조사를 실시하여 현존하는 지표들이 국내 실정에 얼마나 부합한지를 검증하고 면밀한 검토를 통해 국내의 지역창업생태계를 측정할 수 있는 지표를 개발하였다. 그 결과, 국내 지역 창업생태계는 정책(Policy), 투자(Finance), 문화(Culture), 시장(Market), 인적자원(Human Capital), 지원(Support), 지식(Knowledge)등 7개 지표와 지표별 각각 2~4개의 하위요소, 하위요소별 각각 1~4개로 구성되어 총 22개의 하위요인, 38개의 세부요인으로 구성되었다. 본 연구를 통해 지역의 창업생태계를 진단하고 지역별 강점 특화 및 약점을 보완할 수 있는 차별적 정책을 제안하는데 활용할 수 있을 것으로 기대한다.

• 한국환경복원기술학회지
• /
• 제21권2호
• /
• pp.13-26
• /
• 2018

The restoration of the impaired stream ecosystem is an important part of river policies in Ministry of Environment (MoE). However, the diagnosing the impairment sources of stream ecosystem has been omitted on the current river projects and policies. This phenomena lead the remaining impairment sources keep influencing on negative effects on streams. Hence, it is critical to construct a diagnosis system of impairment sources in order to increase the efficiency of various river restoration projects and policies. Moreover, it is also important to understand the relative impact of socio-economic factors of the impairment of stream ecosystems so as to build a domestic diagnosis system in place. Therefore, the study aims to analyse the relative effects of socio-economic factors which are the source of the stream ecosystem impairments through implementing the Analytic Hierarchy Process (AHP). In order to achieve the goal, a list of socio-economic factors influencing the stream health has been derived. On the basis of the derived causes list, AHP questionnaire were carried out to the experts of aquatic ecology. The study results could be implemented to analysing the relative influence of socio-economic impairment causes in domestic stream environments. In addition, more case study investigation is needed to cross-check if the derived impairment causes and weights are applied in the field as well as to develop more reliable indicators.

• 환경영향평가
• /
• 제5권2호
• /
• pp.33-47
• /
• 1996

To select the criteria, literature review was made in the quantitative case of conservation biology, foreign country's EIA and domestic ecology. Among them, a few factors was extracted. To applicate the criteria to domestic forest ecosystem, expert opinion survey was executed to the ecologist. The results were summarized as follows; 1. Classification of sites was made of land use system which is related to forest ecosystem or forest conservation. Sites are divided into 3 categories which are nature preservation area, seminature preservation area and urbanized area. Evaluation criteria is consisted of rarity and naturalness. 2. Each area had different criteria composition according to the site characteristics. Criteria of nature preservation area is rarity in the broad sense (distribution pattern of vegetation), vegetation size, successional stage and depth of organic matters. Those of seminature preservation area are rarity in the broad sense (distribution area of vegetation), vegetation size, successional stage, diameter at breath height and depth of organic matters. And those of urbanized area are vegetation distribution in area, successional stage, age of forest and diameter of breath height. The basic data of criterion was gathered by field survey. 3. Evaluation index and total naturalness index was obtained by adding the each criterion. It is made up of two categories-rarity and naturalness. TNi is divided into 3 grades. Grade I is more than 70% for TNi, grade IT is 50~70%, and grade III is below 50%. According to the each grade, permitted action and facilities were suggested.. This research just focuses on the evaluation of vegetation quality and the assessment results do not directly judge conservation or development. To make better evaluation criteria, various fields of forest ecosystem-geological or physical nature environment and fauna ecosystem etc. -will be added wholly to this research.

• 한국수산과학회지
• /
• 제35권4호
• /
• pp.356-365
• /
• 2002

One of the most important factors that cause eutrophication is nutrient materials containing nitrogen and phosphorus which stem from excreation of terrestial sources and release from sediment. Therefore, to improve water quality, the reduction of these nutrients loads should be indispensible. At this study, the three-dimensional numerical hydrodynamic and ecosystem model, which was developed by Institute for Resources and Environment of Japan, were applied to analyze the processes affecting the eutrophication. The residual currents, which were obtained by integrating the simulated tidal currents over 1 tidal cycle, showed the presence of a typical counterclockwise eddies between Gyewha and Garyuk island. Density driven currents were generated westward at surface and eastward at the bottom in Saemankeum area where the fresh waters are flowing into, The ecosystem model was calibrated with the data surveyed in the field of the study area in annual average. The simulated results were fairly good coincided with the observed values within relative error of $30\%$. The simulations of DIN and DIP concentrations were performed using ecosystem model under the conditions of $40\~100\%$ pollution load reductions from pollution sources. In study area, concentration of DIN and DIP were reduced to $59\%$ and $28\%$ in case of the $80\%$ reduction of the input loads from fresh water respectively. But pollution loads from sediment had hardly affected DIN and DIP concentration, The $95\%$ input load abatement is necessary to meet the DIN and DIP concentration of second grade of ocean water quality criteria.

• 농촌계획
• /
• 제27권2호
• /
• pp.49-58
• /
• 2021

Rural and agricultural landscapes are important forms of land use in maintaining biodiversity. In addition humans are provided with various public functions from ecosystems and agricultural ecosystems. But the creation of a facility horticultural complex can be a space that can undermine the public interest function of the agricultural ecosystem. Therefore, this study aims to quantify the function of ecosystem services that land use changes affect biodiversity in Korea's rice paddy fields. The area subject to the study was selected as the largest agricultural complex in Korea due to rice paddy fields and land use changes, and field agriculture was also carried out simultaneously. The survey was conducted only in the fields of vegetation, insects, amphibians, and birds, four areas of biodiversity that are believed to have a high impact on changes in land use in agricultural landscapes. The valuation of ecosystem services in four areas of biodiversity derived from this study was evaluated as non-market value. As a result of quantitative evaluation, about 25 species of vegetation were reduced due to changes in land use. The diversity of about 40 species of aquatic insects that inhabit rice paddies among insects has disappeared due to the creation of a horticultural complex. Birds and amphibian reptiles were also found to have decreased diversity and populations. This research is expected to be used in various ways to develop policies to enhance ecosystem service functions.

• 대한원격탐사학회:학술대회논문집
• /
• 대한원격탐사학회 2003년도 Proceedings of ACRS 2003 ISRS
• /
• pp.1180-1182
• /
• 2003

In Asian countries, paddy field is indispensable for our lives not only as a source of food but also ecosystem, hydrology, landscape, culture and global warming. In this sense it is necessary to get the detailed spatial distribution of paddy field in Asian region. Remote sensing seems to be the most appropriate tool to estimate paddy field. In this study, two Terra/ASTER images acquired on different date were used to get a map of paddy field with different planting. ASTER's 15-m resolution was found to be enough to be recognize individual paddy field . Paddies with different planting stages were divided into five types using their spectral patterns. As a result a map of paddies with different planting was obtained with tolerably high accuracy.

• 한국수자원학회:학술대회논문집
• /
• 한국수자원학회 2005년도 학술발표회(2)
• /
• pp.1162-1163
• /
• 2005