• Journal of Digital Convergence
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• v.6 no.4
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• pp.45-52
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• 2008

The purpose of this study was to verify and analyze the factors that influence the intention using the travel-blog. This study sought to find out the motivation factors of a Blog. Also, This paper tests the updated model of information systems success proposed by Delone and McLean using a field study of a travel-blog. The three dimensions of the blog Quality were information, design and system. And The three dimensions of the motivation factors were pride, enjoyment and ease of use. Questionaries are collected from 196 peoples who are using the travel-blog. The results of study show, first, that information quality, pride and enjoyment are significant predictors of user satisfaction, second, that pride, enjoyment, and satisfaction are significant of reuse intention with the travel-blog. Third, ease of use did not have positive effects on reuse intention to travel-blog.

• Annual Conference of KIPS
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• 2006.05a
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• pp.249-252
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• 2006

다양한 환경 제약적인 특성들을 갖는 인베디드 소프트웨어를 공유 가능한 개별 단위의 재사용 자산으로 개발하고, 자산의 재사용을 활성화 시키기 위해서는 명확한 개발 절차, 기법, 도구 및 이들을 이용할 수 있게 하는 교육 등 통합적인 재사용 체계가 필요하다. 이를 위해 ETRI에서는 "임베디드 시스템 개발 프레임워크 구축"의 일환으로 임베디드 소프트웨어 개발 조직내의 체계적인 재사용을 위한 재사용 체계를 개발하였다. 재사용 체계는 문서나 코드의 실질적인 재사용 형태 및 절차를 정의하는 재사용 지침, 재사용 지침의 적용을 도와주는 도구인 재사용 지원 시스템, 그리고 재사용 지침과 재사용 지원 시스템을 조직에 보급하기 위한 방법인 재사용 체계 보급 정책으로 구성된다. 본 논문에서는 이러한 재사용 체계의 구성과 내용에 대해 설명한다.

• International Journal of Quality Innovation
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• v.5 no.2
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• pp.106-121
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• 2004

This paper investigates customer knowledge management activities of Taiwan's plastic industries. The results demonstrate that the bulk of customer knowledge comes from data related to customer purchase orders and complaints. Furthermore, marketing, production, and research and development are the main departments that developed and reuse customer knowledge. The benefits derived from knowledge management for enterprises do not vary with the position of the vendor on the business scope. In addition, the benefits derived by customers from knowledge management are directly related to the benefits gained by the five major business functions, while the benefits derived from the customer knowledge management are also directly related to customer satisfaction. Summarizing the above results, an Acquisition-Development-Reuse (ADR) model is proposed and can provide the enterprises with a systematic reference model when the business attempts to construct a customer knowledge management system.

• Journal of Korean Society of Water and Wastewater
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• v.28 no.3
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• pp.305-314
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• 2014

A pilot plant (Q=5 $m^3/d$) study was implemented for small and medium sized personal wastewater treatment plant effluent to evaluate MBR and A/O processes utilizing self-sufficient energy composed of wind and solar energy. The removal efficiencies of BOD, SS, turbidity and color were sufficient for legal water quality standards for gray water. However, those of nitrogen and phosphorus could not meet legal regulations which suggested that further removal of those contaminants were needed for reuse of the treated water. Self-sufficient energy rate was 100 % for the pilot plant due to excessive design capacity. In this research, wind and solar energy system was applied considering geological characteristics, which significantly improved energy self-sufficiency. Substantial improvement on energy self-sufficiency can be obtained by optimized investment and operation at a full scale wastewater treatment plant.

• The Transactions of the Korea Information Processing Society
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• v.7 no.6
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• pp.1803-1809
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• 2000

With the wide usage of the Internet, there use of pre-developed software is becoming important more and more in the development of various communication software. In this paper, the architecture to reuse the communication software is proposed. It is applied to the development of MIB-II system group of SNMP agent software for reusing. If Communication software is developed using this architecture, the software development life cycle will be abridged and the development cost will be reduced.

• Journal of the Korean Society for Aviation and Aeronautics
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• v.21 no.1
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• pp.15-22
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• 2013

In oceanic flight routes, HF radio and satellite data links have weather restrictions, long propagation delay and low data throughput. In this paper, we propose oceanic aeronautical communications scheme in the VHF band based on ad-hoc communication. The proposed scheme organizes autonomously a multi-hop network that is divided into multiple local network using aircraft to fly long-distance communication and supports a hybrid type of multiple access, which consists of random access and TDMA (Time Division Multiple Access) scheme. In addition, several algorithms to apply spatial reuse of transmission to multi-hop long range communication environments have been proposed. The proposed system proves performance improvement on delay time as an effective solution to communicate end-to-end on the oceanic flight routes and strengthens the reliability of oceanic aeronautical communication.

• KSII Transactions on Internet and Information Systems (TIIS)
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• v.6 no.9
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• pp.2153-2169
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• 2012

Femtocells provide high quality indoor communications with low transmit power. However, when femtocells are applied in cellular systems, a co-channel interference problem between macrocells and femtocells occurs because femtocells use the same spectrum as do the macrocells. To solve the co-channel interference problem, a previous study suggested a resource allocation scheme in LTE cellular systems using FFR. However, this conventional resource allocation scheme still has interference problems between macrocells and femtocells near the boundary of the sub-areas. In this paper, we define an optimization problem for resource allocation to femtocells and propose a femtocell resource allocation scheme to solve the optimization problem and the interference problems of the conventional scheme. The evaluation of the proposed scheme is conducted by System Level Simulation while varying the simulation environments. The simulation results show that the proposed scheme is superior to the conventional scheme and that it improves the overall performance of cellular systems.

• Journal of Internet Computing and Services
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• v.4 no.1
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• pp.1-8
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• 2003

Nowadays, various wireless internet contents are serviced in a cellular phone. However, because of the memory limit of the cellular phone, you should delete the wireless internet contents periodically. Also it has been quite inconvenient to move the existing data to a new cellular phone. In this paper I proposed MobileFolder to reuse wireless internet contents and provided a simple client application in a VM environment.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.31 no.2
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• pp.122-131
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• 2008

The purpose of this study is to find out the factors of customer satisfaction as the critical success factors of mobile banking. Based on previous exploratory work and a review of the literature of customer satisfaction, nine key factors are identified: perceived usefulness, perceived easy of use, perceived ubiquity, perceived safety, perceived tangibles, perceived reliability, perceived responsiveness, perceived assurance, and perceived empathy. A conceptual model is developed and hypotheses are empirically examined using multiple regression analysis. The result of this research are summarized as follows: First, perceived usefulness, perceived easy of use, perceived safety, and perceived empathy have significant influence on customer satisfaction. Second, customer satisfaction has significant influence on reuse intention and word-of-mouth intention.

• Journal of The Korean Society of Agricultural Engineers
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• v.53 no.4
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• pp.59-65
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• 2011

The purpose of this study was to analyze the water quality change when wastewater applied to study paddy fields. CREAMS-PADDY (Chemical, Runoff and Erosion from Agricultural Management System) model was used to estimate the field-scale water quality. Simulated results were compared with observed data monitored from Byeongjeom study paddy fields which is located near the Suwon sewage treatment plant in Gyeonggi-do. Significance analysis was performed for the three different irrigation water quality level and five fertilizer reduction scenarios using LSD (Least Significant Difference) and DMRT (Duncan's Multiple Range Test). Total nitrogen was found to be significant for both irrigation water quality level and fertilizer reduction while total phosphorus was not. Annual drainage load for total nitrogen was reduced by 66~92 % compared to irrigation load when treated wastewater irrigated to study paddy fields from 2002 to 2007. Total phosphorus was reduced by 70~86 %.