• Journal of Korean Neurosurgical Society
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• 제48권2호
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• pp.157-161
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• 2010

Primary central nervous system (CNS) melanoma is a rare condition that accounts for only 1% of all melanomas. A 34-year-old Korean female presented with a two-month history of progressive weakness in both legs. Spinal magnetic resonance image (MRI) revealed a spinal cord tumor at the level of T4, which was hyperintense on T1-weighted imaging and hypointense on T2-weighted imaging. The intradural and extramedullary tumor was completely resected and diagnosed as melanoma. There were no metastatic lesions. At three years after surgery, the patient is still alive, with no evidence of tumor recurrence. We present the details of this case along with a comprehensive review of spinal cord melanoma.

• 건축역사연구
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• 제25권3호
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• pp.7-22
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• 2016

Of all the annotations of Rites of Zhou for 2,000 years, there is no single line of history of ore contents related to city building in its current perspective. This is because the definitive evidence of the interpretation of related phrases is regarded as top-level guidelines called "辨方正位(Byeonbang-Jeongwi)", and their specific contents have been discussed in '匠人建國(Jangin-Geonguk)'. The phrases of '匠人營國(Jangin-Yeongguk)', considered to be the key buzzword related to city building, must be reconsidered for these reasons. As such, this paper strives to analyze the system of logic formed by consistent interpretation that flowed for 2,000 years from Han to Qing dynasties, and to discover the principles of city building used in Confucian classics.

• 한국IT서비스학회지
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• 제11권sup호
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• pp.1-16
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• 2012

Information technology is a useful strategic weapon that can create competitive advantage and new business opportunity by applying it in the organization' value chain. IT convergence can be understood as an attempt of industrial level IT adoption to facilitate the innovation of the industry and the birth of a new industry. This study provides the comprehensive review of the Korean government' three IT assimilation programs, ubiquitous technology diffusion program of the Ministry of Knowledge Economy, u-service program of the Ministry of Public Administration and Security, and u-Defence cooperation program of the Department of Defense. The analysis is done through the interpretation of the existing literature and the logic model. The result proposes inter-agency cooperation and building of new technology road-map in the planning stage, flexible management in the execution phase, and failure tolerant evaluation system. The proposal for developing competencies and institutional foundations for IT convergence also presented.

• 한국농촌건축학회논문집
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• 제12권4호
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• pp.13-20
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• 2010

This study takes notes on energy problems and sustainability of rural housing. The purpose of this study was to analyze the actual conditions of rural and applying energy saving of rural housing. For this, we tried to review literatures and conduct a field survey. The results of this study were as follows, first, rural housing of energy saving type environmental friendly applied planning factors with gradual carbon decrease by considering economic efficiency, current application and technical level. Second, the principal concepts of this housing are economic, locality and energy efficiency, it is applicable three kinds of the concepts of environmentally friendly housing. Third, this housing in planning must decrease energy consumption and increase air conditioning efficiency by means of air tightness and improvement insulation capacity.

• Journal of Information Processing Systems
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• 제15권5호
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• pp.1192-1200
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• 2019

Recently, artificial intelligence techniques have been widely used in the computer science field, such as the Internet of Things, big data, cloud computing, and mobile computing. In particular, resource management is of utmost importance for maintaining the quality of services, service-level agreements, and the availability of the system. In this paper, we review and analyze various ways to meet the requirements of cloud resource management based on artificial intelligence. We divide cloud resource management techniques based on artificial intelligence into three categories: fog computing systems, edge-cloud systems, and intelligent cloud computing systems. The aim of the paper is to propose an intelligent resource management scheme that manages mobile resources by monitoring devices' statuses and predicting their future stability based on one of the artificial intelligence techniques. We explore how our proposed resource management scheme can be extended to various cloud-based systems.

• 의료ㆍ복지 건축 : 한국의료복지건축학회 논문집
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• 제23권2호
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• pp.63-72
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• 2017

Purpose: The purpose of this study is to review the material handling system of the Airborne Infection Isolation Hospitals which is the one of the key elements of infection control and to improve the basic data for the planning and design of those facilities. Methods: Research was conducted by literature reviews and case studies for the material handling system of domestic and foreign Isolation hospitals. Results: The result of this study can be summarized into three points. First, a general isolation unit and a high level isolated unit need to be distinguished in terms of efficiency and safety. In particular, it is desirable that a high level isolated unit have to completely separate clean and soiled circulations, and soiled corridor should be installed by those means. By doing this, the medical staff can observe patient rooms and supply clean materials directly in the clean zone without wearing PPE, so that safety and work efficiency can be improved at the same time. Second, for the safe disposal of wastes, it is desirable to install a dedicated sterilizer per ward and sterilize it at least in the ward. In addition, It is desirable to install a central waste treatment room and a dedicated soiled corridor in consideration of the inadequate handling capacity and emergency situation. Third, the characteristics of material flow chart in the negative pressured isolation hospitals and the corresponding material handling system have been presented. Implications: Infection control is very important in safety, but it is necessary to respond to the symptoms of the patient.

• Advances in environmental research
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• 제1권4호
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• pp.237-255
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• 2012

We review the research literature on relationship between environmental regulation and industrial development in three aspects of environmental regulation and investment, environmental regulation and efficiency, environmental regulation and trade. Indeed, the linkage between environmental regulation and material consumption of industrial system is absent. Environmental regulation is measured as the expenditure share for industrial pollutants abatement, and effluent charge intensity. Using panel-level data from 31 provinces, municipalities and autonomous regions in China, we build correlation models between material consumption and environmental regulation, results show that: (1) there are significant quadratic function relationship between material consumption and environmental regulation. And there is the fact that inflection point exists. (2) On basis of inflection points, we make two remarkable reflections. Firstly, the inflection points are the most important scale to judge reasonability and performance of regulations. Secondly, a Pareto improvement may occur when the regulations achieve a certain target. (3) Both intensities of industrial pollutants abatement expenditure and effluent charge have not yet achieved the expected target in most regions of mainland China at present. And most of regions of material consumption decreasing are distributed in western China. Main reasons lie in the impacts of industrial features as well as the regulations.

• 한국주거학회논문집
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• 제27권3호
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• pp.1-9
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• 2016

It is essential to maximize the advantages of long-life housing in consideration of the occupants' demands in order to promote the construction of long-life housing. The diverse plan types with flexibility should be developed based on those demands. Therefore, this study aims to review the level of awareness of long-life housing, and identify the customer needs by conducting the survey for the preference to pre-defined plan types. The results of survey are as follows: 1) Despite the enforcement of the Long-life Housing Certification System in 2014, the recognition among the customers about the long-life housing is still on the low level as shown in that 79.9% of respondents were not aware of the long-life housing; 2) For three alternative plan types, 78.5% on the integration type in front, 63.1% on the moving kitchen type, 47.0% on the Divided Housing type had intention to change; 3) 68.9% of the total are willingly ready to purchase the long-life housing under the condition of no difference in price between normal apartment and long-life housing. The less the number of family members is, the bigger this ratio of positive purchase intention is. Reflecting these results into the designs is expected to contribute to the enhancement of customer satisfaction as well as the diffusion of long-life housing.

• 지능정보연구
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• 제26권1호
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• pp.97-117
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• 2020

상품 평가 기준은 상품에 대한 속성, 가치 등을 표현한 지표로써 사용자나 기업이 상품을 측정하고 파악할 수 있게 한다. 기업이 자사 제품에 대한 객관적인 평가와 비교를 수행하기 위해서는 적절한 기준을 선정하는 것이 필수적이다. 이때, 평가 기준은 소비자들이 제품을 실제로 구매 및 사용 후 평가할 때 고려하는 제품의 특징을 반영하여야 한다. 그러나 기존에 사용되던 평가 기준은 제품마다 상이한 소비자의 의견을 반영하지 못하고 있다. 기존 연구에서는 소비자 의견이 반영된 온라인 리뷰를 통해 상품의 특징, 주제를 추출하고 이를 평가기준으로 사용했다. 하지만 여전히 상품과 연관성이 낮은 평가 기준이 추출되거나 부적절한 단어가 정제되지 않는 한계가 있다. 본 연구에서는 이를 극복하기 위해 잠재 디리클레 할당(Latent Dirichlet Allocation, LDA) 기법으로 리뷰로부터 평가 기준 후보군을 추출하고 이를 k-최근접 이웃 접근법(k-Nearest Neighbor Approach, k-NN)을 이용해 정제하는 모델을 개발하고 검증했다. 제시하는 방법은 준비 단계와 추출 단계로 이루어진다. 준비 단계에서는 워드임베딩(Word Embedding) 모델과 평가 기준 후보군을 정제하기 위한 k-NN 분류기를 생성한다. 추출 단계에서는 k-NN 분류기와 언급 비율을 이용해 평가 기준 후보군을 정제하고 최종 결과를 도출한다. 제안 모델의 성능 평가를 위해 명사 빈도 추출 모델, LDA 빈도 추출 모델, 실제 전자상거래 사이트가 제공하는 평가 기준을 세 비교 모델로 선정했다. 세 모델과의 비교를 위해 설문을 진행하고 점수화하여 결과를 검정했다. 30번의 검정 결과 26번의 결과에서 제안 모델이 우수함을 확인했다. 본 연구의 제안 모델은 전자상거래 사이트에서 리뷰 특성을 반영한 상품군 별 차원을 도출하는데 활용될 수 있고 이를 기초로 인사이트 발굴을 위한 리뷰 분석 및 활용에 크게 기여할 것이다.

• 통상정보연구
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• 제10권4호
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• pp.125-151
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• 2008

Website service quality is widely accepted as one of the key determinants of online business success. Several studies identified key factors that determine the website service quality factors appropriate for online business environments. A convention and visitors bureau (CVB) website is a service portal that delivers information online about a destination so users can develop an overall image of the location. CVBs struggle to deliver positive destination images because the competition among destinations to host conventions is intense. In spite of the important role of CVBs and the beneficial spillover effect of CVBs, there are few studies available reporting on the unique service qualities of a CVB website. The primary purpose of this study was to examine the determining factors that are appropriate for CVB websites from the meeting planners' perspective. The research questions arc: What are the determining factors of service quality of a CVB website? Do the determining factors of CVB website service quality positively influence meeting planners' satisfaction? The new conceptual framework was developed from a variety of destination marketing and Internet marketing concepts: e-servicescape management, web community network, Internet service encounter management, and online system quality. Empirical results indicate that three of the four factors, that is, e-servicescape, web community network, and online system quality are important determinants in evaluating CVB website service quality. The findings also show that three determinants have significant and positive influence on meeting planners' satisfaction. The findings from this study will provide meaningful advice for CVB website quality management. To enhance the CVB website service quality and satisfaction level of meeting planners, these three determinants' should be considered of the utmost strategic importance and priority.