• 한국문헌정보학회지
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• 제45권4호
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• pp.271-286
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• 2011

The role of information in knowledge society has changed. Library refers to information centre, which is actively involved information collection and promoting use of for the development of individual and society. Modern libraries are the centres of interaction for all interested in accessing information and in participating in the marathon of the present competitive age. Information and a conducive environment of its free flow is a vital tool in all forms of human endeavour. It is the link pin of national development. For a nation to develop it needs to have and provide relevant, updated and adequate information on food security, health, democracy, population, education, family planning, youth empowerment, gender quality, environment etc. The information intermediaries are the persons to modulate these complexities and find match between the information sources and users needs to satisfaction of Ranganathan's law: Books are for use; Every reader his/her book; Every book its reader; Save the time of the reader; Library is a growing organism. The relative importance of these norms in modern context has been evident from experience, study, observations, discussions, etc., and only by scientists and technologists, but also by managers, planners, and policy makers. They recognize the usefulness of information in the performance of their needs information needs. Libraries are therefore proper management, provision and dissemination of such information. It is clearly visible in the contemporary context, that the libraries in the knowledge society are much more than the book depositories This article looks at the theory/practice divide in library and information science and particularly Ranganathan's contributions, basic statements remain as valid in substance if not in expression as -to-day as when they were promulgated, concisely representing the ideal service and organizational philosophy of libraries today.

• 한국환경보건학회지
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• 제30권2호
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• pp.92-97
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• 2004

Three methods for VOCs emissions control in indoor air are reduction at the source, ventilation between indoor and outdoor, and removal. The best alternative should be to replace highly emitting sources with sources having low emissions, but the pertinent information on VOCs is not always available from manufactures. Other ways of improving indoor air quality are needed. It is to increase the outside fresh-air flow to dilute the pollutants, but this method would generally provide only a dilution effect without destruction in residence. An ideal alternative to existing technologies would be a chemical oxidation process able to treat large volumes of slightly contaminated air at normal temperature without additional oxidant such as ozone generator and ion generator. Photocatalytic oxidation(PCO) represents such a process. It is characterized by a surface reaction assisted by light radiation inducing the formation of superoxide, hydroperoxide anions, or hydroxyl radicals, which are powerful oxidants. In comparison with other VOCs removal methods, PCO offers several advantages. The purpose of this study was to explore the possibilities for photocatalytic purification of slightly contaminated indoor air by using visible light such as flurescent visible light(FVL). In this study, a PCO of relatively concentrated benzene using common FVL lamps was investigated as batch type and total volatile organic compounds(TVOCs) using a common FVL lamp and penetrated sun light over window. The results of this study shown the possibility of TiO$_2$ photocatalyst application in the area of indoor air quality control.

• 대한안전경영과학회지
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• 제12권4호
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• pp.127-137
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• 2010

The today many companies are tilting to enjoy the dominant position in the globalization of global market. The past business management is focus on the price and quality, but many companies are doing our utmost for customer satisfaction of various needs of customers. Therefore, The efficient logistics management is a core element in the competitiveness of company that respond more quickly and effectively to market. Now, The companies are building an integrated SCM(Supply Chain Management) system that is able to manage and operate procurement, production, distribution & logistics activity. Among the IT infra, The RFID technique is received special attention for this successful SCM System, continuously it is being researched and developed. Also, they recognize RFID techniques that offer various services at supply chain flow, create value of company. This study propose implications in other industry for biz model development and direction based on RFID in many industry through case study for development of the distribution logistics information system on using RFID.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2017년도 춘계학술대회
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• pp.534-535
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• 2017

경제성장과 더불어 개인의 삶의 질이 향상되고 있으며, 이에 따라 건강관리에 대한 관심이 증가하고 있다. 그러나 바쁘게 살아가는 현대인들과 몸이 불편한 노인들의 경우에는 스스로 건강을 관리하기란 쉽지 않은 일이다. 본 연구에서는 자신의 건강상태를 보다 편리하게 모니터링 할 수 있는 헬스케어 시스템을 개발하고자 하였으며, 일반인이 편리하게 측정할 수 있으면서도 중요한 건강정보를 포함하는 심전도와 맥파를 계측하고 이로부터 맥파전달시간을 측정하여 혈액순환계의 건강상태를 모니터링 하고자 하였다. 구현된 시스템의 성능평가를 위해 자세변화에 따른 맥파전달시간을 측정하고 이로부터 일상생활 중 동맥혈관계 모니터링 가능성 평가하였다.

• 한국컴퓨터정보학회논문지
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• 제29권6호
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• pp.101-112
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• 2024

본 논문에서는 프로세스 마이닝을 위한 이벤트 로그 생성을 지원하도록 설계된 대화형 도구인 EDF(Event Data Factory)를 소개한다. EDF는 다양한 데이터 커넥터를 통합하여 사용자가 다양한 데이터 소스에 연결할 수 있도록 지원한다. 이 도구는 그래프 기반 시각화와 함께 로우 코드/노코드 기술을 사용하여 비전문가 사용자가 프로세스 흐름을 이해하도록 돕고, 사용자 경험을 향상시킨다. EDF는 메타데이터 정보를 활용하여 사용자가 case, activity 및 timestamp 속성을 포함하는 이벤트 로그를 효율적으로 생성할 수 있도록 한다. 로그 품질 메트릭을 통해 사용자는 생성된 이벤트 로그의 품질을 평가할 수 있다. 우리는 클라우드 기반 아키텍처에서 EDF를 구현하고 성능평가를 실행했으며, 본 연구와 결과는 EDF의 사용성과 적용 가능성을 보여주었다. 마지막으로 관찰 연구를 통해 EDF가 사용하기 쉽고 유용하여 프로세스 마이닝 애플리케이션에 대한 중소기업(SME)의 접근을 확장한다는 사실을 확인했다.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제11권8호
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• pp.3904-3917
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• 2017

IP multimedia subsystem (IMS) is an open standardized architecture for delivering multimedia service over IP network in a route-agnostic manner. With the increasing popularity of conversational class service, the delivery of a traffic flow with a certain bandwidth demand over a single network path is either not possible or not cost-effective. Multipath transmission is considered to be a promising solution to provide high-quality delivery service. This paper proposes a software defined service overlay network (SDSON) based multipath transmission framework for IMS, which is complementary to existing network architecture. The framework transforms original two-party session negotiation into three-party session negotiation that supports participants to negotiate multipath transmission capacity and path information by signaling message. Based on existing IETF standards, SIP and SDP are scalable to support these functions. Finally, the proposed framework is fully implemented on open source platform and examined by experiments. Experimental results show that multipath-enabled IMS is an effective way to improve the delivery performance of conversational class service.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2021년도 춘계학술대회
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• pp.410-412
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• 2021

최근 정보와 콘텐츠의 양이 급격히 증가하면서 다양한 매체를 통해 사용자들이 요리 정보를 쉽게 얻을 수 있다. 또한 국내 정수기 시장은 하락세 없이 성장하고 있고 더 편리하고 스마트한 정수기에 대한 수요가 높아지고 있다. 어플리케이션 연동을 통한 스마트 정수기를 이용함으로써 개인마다 선호하는 정량의 물을 활용해 요리의 질을 높일 수 있다. 개인이 설정한 정량만 물이 나오게 하기 위해서 솔레노이드 밸브를 사용하였고, 정량을 설정할 때는 개발된 스마트폰 어플을 사용하면서 블루투스 통신을 이용해 솔레노이드 밸브와 스마트폰을 연동시켰다.

• 한국기술혁신학회:학술대회논문집
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• 한국기술혁신학회 2001년도 추계학술대회
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• pp.169-186
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• 2001

신제품 개발과정에 대한 전반적인 흐름에 대해서는 기존의 연구가 다양하게 이루어져왔으나 구체적으로 어떠한 방법론이나 도구를 사용하여 시행하는가에 대해서는 논의가 미미하였다. 따라서 본 연구에서는 신제품 개발시 시장에서 생존가능한 제품속성과 가격을 결정하는 방법으로서 계량경제학적 헤도닉 방법론을 대체할 DEA 모델을 제안하고자 한다. 제품속성과 가격이 이루는 곡면이 유연하게 형성되도록 QC-DEA를 사용하고 거기에 제품속성에 대한 소비자의 선호체계를 반영하기 위하여 AR을 도입하여 AR-QC DEA라는 모델을 만들었다. AR-QC DEA는 모수적 방법론의 한계를 극복할 뿐만 아니라 제품마다 다른 잠재가격을 제시하기 때문에 신제품 개발시 제품속성과 가격의 조합에 대해 많은 정보를 제공해 줄 수 있고 또한 그렇게 만들어진 신제품이 과연 시장에서 생존할 수 있는가를 손쉽게 모의테스트 할 수 있다. 마지막으로 노트북 컴퓨터 제품에 대한 AR-QC DEA의 실증연구를 통해 AR-QC DEA가 충분한 현실설명력을 가짐을 볼 수 있다.

• 경영과정보연구
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• 제3권
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• pp.257-285
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• 1999

Korea Postal Service(KPS) nowadays lies in competitive environment with alternative business such as door-to-door delivery service. Customers began to complain about postal service quality and ask the government to reform a public firm through management innovation. But, Korea Postal Service has not met the break-even point between it's revenue and expenditure because the service is under the government system and cannot independently make major decisions on products, pricing, services, personnel management, financial policies and etc. The objective of this study is to provide marketing planners and practitioners with some guidelines when they establish marketing strategies and to help marketers on theories and practical instructions about postal service marketing when they interact with customers. I. A field survey on both customer satisfaction and internal staff satisfaction was conducted to get some ideas for the marketing strategy planning. II. Practical guidelines and instructions were made for marketers to communicate with customers in various areas such as pricing, product, service demand, marketing channel, promotion, and etc. III. Some suggestions on marketing policies for planners and mangers in the marketing strategy were described including personnel resource as well as physical resource. IV. Special issues on small packet market and direct mail market were discussed and some alternative solutions were proposed. V. Database marketing strategy was emphasized to get new business opportunities such as direct mail, and to provide differential services to customers as much as their contribution into the profitability for KPS. VI. Cyber Post Office should be constructed on Internet to provide new services which are combined with physical material flow and information technologies.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2002년도 춘계학술대회 논문집
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• pp.1030-1033
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• 2002

In this study, it is important that we have an understanding of the metal flow for manufacturing condenser tube in porthole die extrusion, because this need to provide for household appliances market that is expected to grow into the major market of the cooling system hereafter. Condenser tube is mainly manufactured by conform exclusion. However, this method was not satisfied a series of the needs for manufacturing condenser tube as compared with porthole die extrusion. The deforming skill recently is required high-productivity, high-accuracy and reducing lead-time, thus it is essential to substitute conform exclusion by porthole die exclusion. Porthole die extrusion has many advantages such as improvement of productivity, reduction of production cost etc. In general, the porthole die extrusion process consists of three stages(dividing, welding and forming stages). In order to obtain the detailed mechanics, to assist in the design of proper die shapes and sizes, and to improve the quality of products, porthole die extrusion should be analyzed in as non-steady state as possible during the entire process to evaluate detailed metal flow, temperature distribution, welding pressure and extrusion lead, and therm stress analysis was practiced to obtain effective stress and elastic deformation value. A analytical results provide useful information the optimal design of the porthole die for condenser tube.