• 기술혁신연구
• /
• 제13권2호
• /
• pp.45-70
• /
• 2005

Much work on innovation has focused on the manufacturing sector. In this paper, we propose a framework for analyzing innovation in services centred on capability and technology integration. We illustrate the theoretical points made by conducting a case study on an international telephone communications provider Brastel, which introduced significant innovations in international calling services, in the form of rechargeable pre-paid calling card, through effective application of standard IT. Brastel is situated against its main competitors, considering two dimensions of price and service breadth and convenience. A novel technique for measuring competitiveness based on price and service index is introduced. The following competitors were selected: NTT, KDDI, Japan Telecom, Fusion Communications, J-Call / World Link, G-Call, ASP Check, Primus, QuickPhone, and MCI. To create the service index, factors such as ease of use, convenience, number of languages in which the services are available, and additional features were taken into account. The company itself and the rechargeable card innovation were analyzed through in-depth interviews and data collection. It was shown that a competitive advantage was maintained through internal and external capabilities.

• 한국도서관정보학회지
• /
• 제41권4호
• /
• pp.127-150
• /
• 2010

본 연구는 대학도서관 인적 서비스에 대한 대학생들의 인식정도, 신분별 상관성, 전반적인 도서관 만족도와의 영향관계를 검증하고, 품질 인식의 괴리 원인 분석과 개선안을 제시하고자 한다. 인식도의 분석결과, 이용자의 현행서비스에 대한 인식은 아주 낮고, 서비스 품질은 최소한의 수준에도 미치지 못하였다. 품질 요인에서 희망수준이 높은 것은 미소장자료의 신속한 입수와 공손함이었고, 희망수준과 괴리가 큰 요인은 충분한 주제전문서비스와 자발적인 도움이었다. 서비스 품질은 도서관 만족도에 영향을 주었으며, 주제전문서비스, 이용자 요구의 정확한 이해, 예의바르고 공손함이 영향을 많이 주었다. 인식 괴리 원인은 사서들의 무관심, 질문응답의 의욕부족, 커뮤니케이션의 부족, 이용자에 대한 배려 부족 등이었다.

• 한국정보통신학회:학술대회논문집
• /
• 한국해양정보통신학회 2003년도 추계종합학술대회
• /
• pp.560-564
• /
• 2003

최근 홈네트워크 산업 및 시장에 대한 전망과 기대가 커지고 있는 가운데, 여러 사업자들이 경쟁력 있는 킬러 홈네트워킹 서비스를 찾기 위하여 노력하고 있다. 본 논문에서는 초고속통신사업자가 다양한 ISP들의 서비스나 컨텐츠를 수집, 검증하고, 가입자의 홈 네트워킹 환경을 원격에서 관리하여, 사용자에게 홈네트워킹 서비스를 중개하는 홈네트워킹 서비스 사업모델을 제안 고찰하였다.

• 한국응급구조학회지
• /
• 제1권1호
• /
• pp.7-10
• /
• 1997

This study was analyze that they knows how to think improvement about the emergency relief squad 119. The result is following: 1. Convenience when to use an ambulance is not difference of the voluntariness by regional groups, and then result get that ambulance is necessary with going out as quick as possible. 2. Improvement of the ambulance os not difference of the voluntariness by regianal groups, and then result get that ambulance is necessary with improvement for the ambulance and equipment. 3. First remembrance when you call the ambulance is not difference of the voluntariness by sex distinction, and then result get that they will have the public relations.

• 대한지역사회영양학회지
• /
• 제10권3호
• /
• pp.331-340
• /
• 2005

The purpose of this study was to provide basic data to improve college food service satisfaction with sanitary, environment and service by comparing 2 contract-managed and 2 self-operated college food services in Daejeon and Chungnam area. According to the results, sanitation and environment satisfaction degrees of contract-managed college food services were higher than those of self-operated food services. The satisfaction degrees with service were also higher in contract-managed food services than self-operated food services except the category of quick food delivery. In all categories comprising the food service satisfaction, the satisfaction degrees were lower in female students than in male students. There were more negative self-perceived clinical symptoms in female students than male students. The higher the negative self-perceived clinical symptoms scores were, the lower the satisfaction degrees with food service were, which suggests that かe health state of students was one of the factors that influenced college food service satisfaction. There was no difference between contract-managed and self-operated food services in terms of satisfaction with overall food taste and overall satisfaction degree. The average satisfaction degree for the contractmanaged food services in terms of price relative to food quality was lower than that for self-operated food services. According to stepwise multiple regression analysis, 'overall food taste', 'price relative to quality', 'kindness of employees', 'coping with proposed opinions' and 'quicknless of food delivery' in decreasing order, were the most relatively important attributes for overall satisfaction. There should be further studies on important management factors to improve satisfaction with sanitary, environment and service by self-operated college food service.

• 한국정보과학회논문지:컴퓨팅의 실제 및 레터
• /
• 제9권3호
• /
• pp.254-265
• /
• 2003

본 논문은 효율적인 스트리밍 캐쉬 서버 개발에 필수적인 스트림 제어 기법의 설계와 구현에 대해 기술한다. 논문에서 사용한 스트리밍 프로토콜은 표준 프로토콜인 RTSP/RTP/RTCP이다. 스트림 제인 기법은 기존 스트리밍 환경에서 On-Demand 캐슁과 실시간 Splitting 기능등을 제공하며, 프로토콜 수준의 세션 관리와 캐쉬 관리 기능으로 구성된다. 프로토콜 수준의 세션 관리는 RTSP 세션 제어, RTP 송수신과 RTCP 세션 제어를 양방향으로 제공하고, 캐쉬 관리 기능은 RTP 패킷 수준의 캐슁과 패킷 미디어 일관성 유지를 제공한다. 스트리밍 캐쉬 서버는 Apple의 QTSS 서버와 QuickTime Player로 구성된 스트리밍 환경에서 리눅스 시스템을 기반으로 구현하였다. 구현된 시스템은 On-Demand 캐슁과 스트림 Splitting 서비스를 원활하게 제공하였다.

• KSII Transactions on Internet and Information Systems (TIIS)
• /
• 제15권1호
• /
• pp.58-73
• /
• 2021

Cloud Service Providers (CSPs) enable their users to access Cloud computing and storage services from anywhere in quick and flexible manners through the Internet. With the basis of 'pay-as-you-go' model, it makes the interactions between CSPs and the users play a vital role in shaping the Cloud computing market. A pool of virtualized and dynamically scalable Cloud services that delivered on demand to the users is associated with guaranteed performance and cost-provisioning. It needed a costing scheme for determining suitable charges in order to secure lease pricing of the Cloud services. However, it is hard to meet the satisfied prices for both CSPs and users due to their conflicting needs. Furthermore, there is lack of Service Level Agreements (SLAs) that allowing the users to take part into price negotiating process. The users may lose their interest to use Cloud services while reducing CSPs profit. Therefore, this paper proposes a generic costing scheme for Cloud services using General Equilibrium Theory (GET). GET helps to formulate the price function for various services' factors to match with various demands from the users. It is initially determined by identifying the market circumstances that a general equilibrium will be hold and reached. Specifically, there are two procedures of agreement made in response to (i) established equilibrium supply and demand, and (ii) service price formed and constructed in a price range. The SLAs in our costing scheme is integrated to satisfy both CSPs and users' needs while minimizing their conflicts. The price ranging strategy is deliberated to provide prices' options to the users with respect their budget limit. Meanwhile, the CSPs can adaptively charge based on users' preferences without losing their profit. The costing scheme is testable and analyzed in multi-tenant computing environments. The results from our simulation experiments demonstrate that the proposed costing scheme provides better users' satisfaction while fostering fairness pricing in the Cloud market.

• 가정과삶의질연구
• /
• 제27권6호
• /
• pp.243-253
• /
• 2009

This study identifies the concept of a digital convergence paradigm, which deals with the relationship among convergence and consumer participation, digital contents services, and the culture of consumption (web 2.0). This research was conducted using a quantitative method involving focus group interviews (FGI) and literature reviews. This research examines the relationship between convergence and consumer participation and the adoption of a concept of "convergence culture", which is categorized as "collective intelligence" and "intellectual community participation". The role of the consumer has changed from one of a "consuming consumer" to that of a "collaborating consumer" and finally to the concept of a consumers as the originator of a new consumption culture. In the study, the consumption culture of web participants indicated the characteristics of funology, self-expression, life-catching, quick-tempered, immersion(arousal), sharing culture, multitasking, and cyber justice. The recognition level of networking on the "digital convergence" of the consumer was identified as that of the combination of IT(information technology); product and multi-services or alliance of industry groups(telecom, broadband, IPTV service); or the use of one source with multiple devices.

• 인터넷정보학회논문지
• /
• 제21권5호
• /
• pp.31-37
• /
• 2020

Last year's Goseong-Sokcho forest fires have highlighted the limitations of extinguishing work for night-time forest fire and the importance of quick identification for information on the spread of forest fire. However, it is not easy to find services that take into account the characteristics of forest fires, as most existing disaster-related mobile applications and research assume various disaster situations rather than just forest fire situations. Therefore, a system that can provide information quickly is needed, taking into account the characteristics of forest fires and the limitations of extinguishing work. In this paper, we propose evacuation route guidance services that bypass areas where fire has already spread, supplement existing methods of extinguishing work, and provide general information on forest fire situations in real time, by putting drones into forest fire situations. It has been implemented to automate image analysis using the Rekognition service of Amazon Web Service (AWS), and the results of fire detection and the T Map API guide the evacuation path. It is expected that the results of this paper will allow efficient and rapid rescue and extinguishing work to be carried out, and further reduce the damage of human life caused by forest fires.

• 한국약용작물학회지
• /
• 제26권5호
• /
• pp.362-369
• /
• 2018

Background: For stable induction of tetraploidy in Fallopia multiflora Haraldson, colchicine was treated to establish the condition of induction and investigated the morphological and cytogenetic traits of the tetraploid plants obtained compared to those of diploid ones. Methods and Results: For the induction of tetraploidy, F. multiflora plants were soaked in aqueous solutions of colchicine at various concentration (0.1, 0.5, and 1.0%). After this, 2% dimethyl sulfoxide (DMSO) was added at room temperature on a shaker set at 150 rpm for periods of 12, 24, and 48 h. The induction rate of tetraploids appeared to be the highest in plants treated with 0.5% colchicine for 24 h. As the colchicine concentration and soaking time increased above these levels, the growing tip of the roots did not develop and they began to rot. When compared to diploid plants, tetraploids differed greatly in various characteristics, including the sizes and shapes of the leaves, fruits, flowers and roots. The induced tetraploid F. multiflora had larger guard cells, and chloroplasts, increased number of chloroplast in the guard cells and decreased stomatal densities. Conclusions: When colchicine induced plants for tetraploid, it can be distinguished from diploids, in various characteristics such as morphological changes as stomatal size, number of chloroplasts per guard cell, number of chromosomes and flow cytometry. Therefore, it proved that these methods are suitable, quick and easy methods for the identification of the ploidy level of F. multiflora.