• ETRI Journal
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• 제18권4호
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• pp.229-244
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• 1997

Realization of the economical, reliable, and efficient ATM interface block becomes an important key to development of the ATM switching system when we consider new issues raised recently. In this paper, we summarize requirements for the ATM interface block and present the UNI (User Network Interface)/NNI (Network Node Interface) architecture to meet these requirements. We also evaluate the performance of the multiplexer adopting the various multiplexing schemes and service disciplines. For ATM UNI/NNI interface technologies, we have developed a new policing device using the priority encoding scheme. It can reduce the decision time for policing significantly. We have also designed a new spacer that can space out the clumped cell stream almost perfectly. This algorithm guarantees more than 99 % conformance to the negotiated peak cell rate. Finally, we propose the interface architecture for accommodation of the ABR (Available Bit Rate) transfer capability. The proposed structure that performs virtual source and virtual destination functions as well as a switch algorithm can efficiently accommodate the ABR service.

• 한국조경학회:학술대회논문집
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• 한국조경학회 2007년도 Journal of Landscape Architecture in Asia Vol.3
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• pp.197-201
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• 2007

In recent years in Japan, derelict land by aging fanners has increased at the same time as the desire of city dwellers for a more natural, leisurely lifestyle. In response, an increasing number of citizens' farms(or 'allotment gardens') have opened in and around urban areas. Citizens' farms with overnight accommodation are known as 'kleingartens'. As a case study, we evaluated a kleingarten in the town of Suo-oshima by interviewing the resident caretaker and conducting a questionnaire survey of facility users. Our survey revealed a number of ways in which the facility could be improved to meet user needs. The case study also suggested that kleingartens are an effective means of revitalizing local communities in rural areas.

• 한국통신학회논문지
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• 제31권5A호
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• pp.526-536
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• 2006

유비쿼터스 시대가 도래함에 따라 사회적으로 실내 위치 추적 시스템에 대한 관심이 증가되었다. 하지만 기존 실내 위치 추적 시스템은 실내 환경의 빈번한 변화에 능동적으로 대응하지 못하고, 실내 환경의 NLOS 특성으로 인하여 이동 객체의 정확한 위치 측정이 어려운 문제점이 있다. 본 연구의 목적은 앞으로 유비쿼터스 시대가 도래함에 따라 다양한 사용자의 요구를 만족시키기 위한 서비스를 제공하는데 필수 요소인 실내 이동 객체의 위치를 효과적으로 파악하고, 이동 객체의 위치 정확도를 향상시킨 환경 적응형 위치 추적 시스템을 제안한다.

• 토지주택연구
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• 제9권4호
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• pp.10-18
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• 2018

As the volatility increasement of the number of tourist, there was been controversy over supply-demand imbalance in hotel market. The purpose of this study is to analysis on determinants of hotel occupancy rate in Jeju Island. The quantitative method is based on cointegrating regression, using an empirical dataset with hotel from 2000 to 2017. The primary results of research is briefly summarized as follows; First, there are high relationship between total hotel occupancy rate and hotel occupancy of foreign tourist. The volatility of hotel occupancy is caused by foreigner user than local tourists though local tourist high propotion of hotel occupancy in Jeju Island. Second, hotel occupancy of local tourist has not relationship with demand and supply variables. Because some hotel users are not local tourists but local resident, and effects to other variables of hotel consumer trend, accommodation such as Guest house, Airbnb. Third, there are high relationship between foreign hotel occupancy rate and demand-supply variables. These research imply that total management of supply-demand is very important to seek stability of hotel occupancy rate in Jeju Island. Also it can provide a useful solution regarding mismatch problem between supply-demand as well as development the systematic forecasting model for hotel market participants.

• 한국인터넷방송통신학회논문지
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• 제12권3호
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• pp.155-162
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• 2012

본 논문에서는 유비쿼터스 시대가 도래함에 따라 사회적으로 실내 위치 추적 시스템에 대한 관심이 증가되었다. 하지만 기존 실내 위치 추적 시스템은 실내 환경의 빈번한 변화에 능동적으로 대응하지 못하고, 실내 환경의 NLOS 특성으로 인하여 이동 객체의 정확한 위치 측정이 어려운 문제점이 있다. 본 연구의 목적은 앞으로 유비쿼터스 시대가 도래함에 따라 다양한 사용자의 요구를 만족시키기 위한 서비스를 제공하는데 필수 요소인 실내 이동 객체의 위치를 효과적으로 파악하고, 이동 객체의 위치 정확도를 향상시킨 환경 적응형 위치 추적 시스템을 제안한다.

• 인터넷정보학회논문지
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• 제9권1호
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• pp.179-186
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• 2008

콘텐츠나 데이터 중심의 입력 인터페이스가 점차 확대되는 방향으로 웹응용이 진화하고 있다. 이용자는 웹사이트 보다는 사이트에 저장된 서비스와 정보에 더 관심이 많다. 콘텐츠 중심의 연산을 효과적으로 구현하기 위하여, 도메인 개념의 범위를 두 가지 방향에서 확장하였다. 자원단위의 접근에 적합한 이름구조를 제안하였고, 도메인의 의미는 다양한 함수의 영역이 되도록 허용하였다. 불필요한 최상위 확장자를 제거함으로써 자원을 위한 도메인으로서의 효율성을 높였으며 또한 호스트에 대한 독립성을 가진 도메인의 가능성을 열었다. 다양한 기능의 응용이 적어도 개념적으로는 중간 매개체를 거치지 않고 도메인에 의해서 직접 호출 될 수 있다. 본 논문에서 제시한 도메인의 확장 개념은 인터넷진화에 새로운 토대가 될 수 있는 기술적 변화를 예상할 수 있다.

• 대한안전경영과학회지
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• 제14권2호
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• pp.265-276
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• 2012

The purpose of this study is to draw employee support program at the company level through field survey of foreign laborers' satisfaction level of working life. To analyze the factors that determine working life satisfaction, regression analysis was conducted. Satisfaction level of working hours(t=2.469), living environment(t=2.140), post offices/banks (t=3.024) showed a statistically significant. Also these variables, working hours, living environment, post office/banks are verified to be very important for improving the level of their working life. Through these findings we can understand that employee support activities, providing user-guide of bank and post office, compliance with standards for working hours, improvement of the living conditions (accommodation, meals, etc.), the leisure time program support, the children care support and active utilization of foreign workers and strengthen the educational program, are necessary to improve the satisfaction level of foreign laborers' working life in Korea. It is recommended that managers need to recognize that careful consideration of living and working condition could contribute to stable settlement and increase working life satisfaction for the foreign workers at company level.

• 교육시설
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• 제3권1호
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• pp.39-52
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• 1996

Continuously expanding information technology is changing the world in which our students live. Many schools are using this new technology and many schools are contemplating the use of this new technology. The ways in which teachers and students work, and their dependence on information technology, have evolved significantly-increasing the importance of getting the information technology infrastructure right in schools. Yet, all too often, most of schools are unable to take full advantage of the opportunities that information technology offers since those designing and fitting out school buildings have failed to consider information technology adequately. This study is to guide the physical design of practical networked schools. In this paper, we present the ways to achieve architectural solutions to the manifold problems associated with accommodation of information technology in schools. The practical guidelines for planning and managing information technology infrastructure-that is, the spaces and services provided in the school building to support the user' information technology requirements-are offered. Adherence to these guidelines will provide a substantial degree of adapability and flexibility in school buildings.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2016년도 추계학술대회
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• pp.305-306
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• 2016

다른 지역에서 취직을 하게 되거나 또는 학교를 다니거나 여행을 다니는 사람들에게 첫 번째 문제는 잠자리이다. 집을 구할 때 구하기 전까지는 머무를 곳이 없다는 문제가 있다. 또한 여행객들 중에 게스트하우스 같이 단체공간보다는 개인공간을 원하는 사람들도 있다. 이러한 문제점을 해결하기 위해 본 논문에서는 도어락 원격 제어 시스템을 통해 사용하지 않는 방을 제공한다. 본 시스템은 사용자들에게 사용할 수 있는 방을 제공하고 비밀번호를 설정함으로써 원격으로 도어락을 제어 할 수 있다. 또한 NFC를 이용하여 사용자가 비밀번호를 잊어도 사용할 수 있도록 편리함을 제공하였다. 사용할 수 있는 방의 정보와 사용후 기를 클라우드 시스템에 관리 할 수 있도록 하였다.

• International Journal of Advanced Culture Technology
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• 제9권2호
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• pp.72-79
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• 2021

This study is to develop a strategy to prepare an improvement strategy according to the environmental change of the hotel. Currently, domestic hotels are implementing marketing through food and beverage as a countermeasure against the sales decrease, and in order to develop effective marketing plan, 5 Force Model environmental analysis and STP analysis are analyzed. 5 Force Model Environmental Analysis showed that domestic hotels are facing various difficulties such as the expansion of accommodation sharing system, the decrease of Chinese tourists due to the THAAD problem, the increase of hotels, the introduction of PMS, the increase of minimum wage, the introduction of 52 hours work week, and the increase in product preference As an STP response strategy to correspond these difficulties, it is necessary to develop products for the main customers of the hotel food and beverage, such as those in the 20s-30s, the workers, smartphones and SNS users. And also hotels should seek ways to lower price of the product to the level desired by the user to compete against substitutes. In conclusion we suggest that hotels are committed to fulfilling their role by meeting guest safety and COVID-19 compliance requirements, but a focus on immediate cleanliness and quarantine against infectious diseases, like Airbnb, will enable greater growth.