• 정보화연구
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• 제10권2호
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• pp.197-209
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• 2013

본 연구에서는 국내 이동통신 사업자가 직면하고 있는 ICT 생태계의 한계와 소비자 및 스마트폰의 본질에 대한 분석을 실시하였다. 분석 결과에 따르면, 5G 통신, 퍼베이시브 컴퓨팅, 증강현실, 빅데이터 등의 유망 기술이 향후 ICT 생태계에 중요한 영향을 미칠 것으로 보인다. 본 연구에서는 이러한 분석을 통해 국내 이동통신 사업자의 대응 전략을 빅데이터 전략, 사물의 통신 주체 일원화 대비전략, 새로운 서비스 플랫폼 개발 전략, 토탈 라이프케어 서비스 제공자 전략 등 4가지로 제시하고 있다.

• 한국수산과학회지
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• 제36권2호
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• pp.178-186
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• 2003

Seasonal variation of phytoplankton was investigated with surface mixed layer ecosystem model in the East Sea. The model consisted of four compartments (phytoplankton, zooplankton, nutrient, detritus) forced by mixed layer depths, photosynthetically available radiation and nutrient concentrations. From model results we estimated entrainment rate $2.5-4.0\;m{\cdot}day^{-1}$ to reproduce the two annual blooms, and reproduced seasonal variation of phytoplankton at southern and northern regions by the difference of surface winter mixed layer depth (MLD) using the entrainment rate value $3.0\;m{\cdot}day^{-1}$. The spring blooms in the southern and northern regions closely related to deepening of a winter surface MLD. In the southern region where MLD was shallow and phytoplankton spring bloom occurs one month in advance to the northern region where MLD was deep. The amount of light increases within the MLD during the onset of stratification and water temperature increases faster in spring in the southern region than the northern region. Decrease of phytoplankton was mainly affected by zooplankton grazing in the southern region and by nutrient exhaustion in the northern region. The fall bloom in the two regions was caused by the nutrient availability and entrainment on the phytoplankton.

• 정보화정책
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• 제20권3호
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• pp.18-42
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• 2013

정책현상에서 드러난 정책 또는 행정서비스에 대한 만족수준이 높지 않다. 정부경쟁력지표 역시 부정적이다. 왜 그럴까? 그 원인의 하나로 취약한 정책지식생태를 지적할 수 있다. 연구공동체에서 산출된 지식이 양적, 질적으로 확대, 심화되고 있지만 그 유용성은 낮기 때문이다. 이러한 실상에 대한 문제인식의 바탕에서 정책학의 정체성에 대한 재정립이 요구된다. 만일 정책연구가 정책담당자들의 역량발휘에 무익하거나 정책 활동에 유용하지 못하다면, 정책연구의 존립근거 자체가 회의 시 될 수 있다. 정책의 다양성, 복잡성, 역동성으로 인해 그 원인을 일률적으로 단정하기 어렵다. 그럼에도 불구하고 이글은 생태학적 시각에서 국가정책지식의 현상과 방향을 살펴보고자 한다. 이를 위해 한국과 미국의 전자정부 정책사례를 비교분석하고, 정책지식의 적실성 제고를 위한 이론 및 정책적 함의를 탐색하기로 한다.

• 한국해양바이오학회지
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• 제8권1호
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• pp.10-17
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• 2016

A wide-spread contamination of persistent organic pollutants (POPs) such as dioxins, PCBs, PBDEs in the aquatic ecosystem has generated a great concern over the potential risk for these substances to impact marine biotas and food web. Since a major exposure route of these substances to the humans is through the consumption of food including fish and marine byproducts, the consumption of contaminated products has been a great public health concern. Exposure to POPs has been associated with a wide spectrum of adverse effects including reproductive, developmental, immunologic, carcinogenic, and neurotoxic effects. This review covers the background information of key POPs substances and the recent development of toxicity studies including the mode of action. Because neurotoxic effects of some POPs have been observed in humans at low concentrations, polychlorinated biphenyl (PCB), a representative chemical of POPs, is focused to discuss the possible mode(s) of action for the neurotoxic effects. This review provides the updates of toxicity studies on POPs and paves ways to discuss a possible implication of contaminated marine biota over the human health among the marine biotechnology researchers.

• 한국IT서비스학회지
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• 제21권1호
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• pp.41-59
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• 2022

Metaverse which was not mentioned until recently due to the failure of 'Second Life' in the past is drawing attention again with the emergence and popularity of metaverse platforms such as 'Roblox' and 'Zeppetto'. On the other hand, there are concerns that past failures will still be repeated. In order to create and sustain the ecosystem surrounding the metaverse, it is important to diagnose and analyze the development process of the metaverse industry and market to define a clear concept that expresses the current metaverse boom. In this paper, the metaverse of the future is defined as "Metaverse 2.0: A virtual world that evolves into a 'Hyper world' through the convergence of hyper-connectivity, hyper-intelligence, and hyper-reality." And six issues that need to be resolved for the activation of the metaverse were analyzed. Based on the contents of this study, it is expected that the metaverse ecosystem will be formed and spread by establishing the roles of the public sector and the private sector.

• 대한원격탐사학회지
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• 제38권4호
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• pp.421-434
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• 2022

Fine particulate matter (PM2.5) has been the biggest environmental problem in Korea since the 2010s. The present study considers the value of urban forests and green infrastructure as an ecosystem service (ES) concept for PM2.5 reduction based on satellite and spatial data, with a focus on Seoul, Korea A method for the spatial ES assessment that considers social demand variables such as population and land price is suggested. First, an ES assessment based on natural environment information confirms that, while the vitality of vegetation is relatively low, the ES is high in the city center and residential areas, where the concentration of PM2.5 is high. Then, the ES assessment considering social demand (i.e., the ESS) confirms the existence of higher PM2.5 values in residential areas with high population density, and in main downtown areas. This is because the ESS of urban green infrastructure is high in areas with high land prices, high population density, and above-average PM2.5 concentrations. Further, when a future green infrastructure improvement scenario that considers the urban forest management plan is applied, the area of very high ESS is increased by 74% when the vegetation greenness of the green infrastructure in the residential area is increased by only 20%. This result suggests that green infrastructure and urban forests in the residential area should be continuously expanded and managed in order to maximize the PM2.5 reduction ES.

• Journal of Information Technology Applications and Management
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• 제29권6호
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• pp.1-12
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• 2022

In recent years, technological competition in the automobile sector is accelerating. This study analyzes the status of patents from a global perspective of three promising future items that Korea has selected as core technologies in the field of autonomous driving,. And the technological cooperation ecosystem was identified through network analysis centered on scientific metrology. As a result of the analysis, it was confirmed that the growth of individual technologies has been strengthened in recent years, and although key source technologies have been largely preempted in major global countries, a close cooperative ecosystem between institutions, companies, and universities in major countries has not yet been formed. Specifically, the US and Japan have the technological leadership, while China is rapidly rising, and Korea is chasing after it as a latecomer. Therefore, it is necessary to continuously strengthen technological cooperation such as R&D of core technology to overcome technological limitations and strengthening of infrastructure construction, attracting excellent foreign talents and international exchanges. This analysis is meaningful in that it explores the global status of Korea's technology and the possibility of technological cooperation from various perspectives in the future from the viewpoint of preoccupation of future technology, rather than grasping the trend of a specific technology.

• Journal of Information Technology Applications and Management
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• 제20권3_spc호
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• pp.295-314
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• 2013

These days a great mix of traditional and digital contents such as movie, broadcasting, advertisement, e-books, music, game, animation, cartoon, character, knowledge information, and art performance are widely available. Many more are yet to come, with improved quality and added features. It is expected that all these contents will be evolved into a new breed of convergence content through the process of consolidation, expansion, integration, and recreation. Across the digital ecosystem, a new formula is being added to the industrial structure : 'Information/Content-Platform/Device-Goods/Service.' In the near future, as a result of technological innovation and convergence, the business sector will lose its boundaries as well, as businesses will be forced to look beyond the product itself and focus more on multi-functionality. Especially, in the era of creative economy, more policies need to be crafted in order to procure a new growth engine for the future with the agenda for convergence between humanities and technology. Therefore, the purpose of this paper is to analyze the concept, factors, elements, types, and cases of convergence, which are the essence of content convergence. This analysis, with its focus on the convergence process, will help identify the effects and limits of content convergence as well as the prospects for convergence contents in the smart ecosystem under the creative economic system.

• Journal of Information Processing Systems
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• 제15권4호
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• pp.765-784
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• 2019

The smart city is one of the most promising, prominent, and challenging applications of the Internet of Things (IoT). Smart cities rely on everything connected to each other. This in turn depends heavily on technology. Technology literacy is essential to transform a city into a smart, connected, sustainable, and resilient city where information is not only available but can also be found. The smart city vision combines emerging technologies such as edge computing, blockchain, artificial intelligence, etc. to create a sustainable ecosystem by dramatically reducing latency, bandwidth usage, and power consumption of smart devices running various applications. In this research, we present a comprehensive survey of emerging technologies for a sustainable smart city network. We discuss the requirements and challenges for a sustainable network and the role of heterogeneous integrated technologies in providing smart city solutions. We also discuss different network architectures from a security perspective to create an ecosystem. Finally, we discuss the open issues and challenges of the smart city network and provide suitable recommendations to resolve them.

• Journal of Information Technology Applications and Management
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• 제28권1호
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• pp.1-12
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• 2021

The purpose of this study is to analyze the medical ecosystem in the post-corona era. In addition, this study introduces a new medical CRM model that allows primary-level hospitals to overcome the economic difficulties and to occupy a competitive advantage in the post-corona era. The medical environment in the post-corona era is expected to be changed by non-face-to-face treatment, reinforcement of public medical care, the transformation of a medical system centered on the primary-level hospitals, and the use of AI and big data technologies. The medical CRM model presented in this study emphasizes the establishment of mutual customer relationships through close information exchange between patients, primary-level hospital, and the government. In the post-corona era, primary-level hospitals should not simply be approached as private hospital pursuing profitability. These should be reestablished as the hospitals that can provide public health care services while ensuring stable profitability.