• 디지털융복합연구
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• 제17권8호
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• pp.393-399
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• 2019

본 연구는 국내의 대표적인 배달 애플리케이션 3곳을 비교분석 하기 위한 연구이다. 모바일 사용 증가에 따라 배달 애플리케이션의 사용 빈도는 나날이 늘고 있다. 그런데도 사용성에서는 아직도 문제가 제기되고 있다. 배달의 민족, 요기요, 배달통 이렇게 세 가지의 배달 애플리케이션의 사용성에 대한 선호도를 심층 면접을 통해 분석하였다. 사용자 경험 만족에 영향을 미치는 요인을 허니콤에 기반을 둔 7점 척도를 통해 확인하였고, 심층 면접과 7점 척도의 결과가 비슷하게 나옴으로써, 사용자들이 압도적으로 선호하는 배달 애플리케이션이 무엇이며 이유가 무엇인지 알 수가 있었다. 이 연구는 배달 애플리케이션에 대한 사용자 경험을 분석하고 각 업체의 장점을 도출시켜 애플리케이션에 적용하고, 더 나아가 면담을 통해 얻게 된 새로운 기술적 아이디어를 통해 애플리케이션의 서비스와 사용성을 높이는 데 의의가 있다.

• 한국융합학회논문지
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• 제9권9호
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• pp.159-165
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• 2018

이 연구에서는 성장하고 있는 O2O 기반 식품 배달 플랫폼 서비스의 발전 방안을 모색하였다. 식품 배달 플랫폼은 IT와 신기술 적용을 더 해 기존에 없던 수익구조를 새롭게 창출하고 있으며, 모바일 환경에 익숙한 젊은 세대가 주 소비자로 떠오르고 있다. 연구방법으로는 국내외 배달 플랫폼 사례 조사를 통해서 발전 방안을 제시하였다. 식품 배달 플랫폼 시장은 IT, 물류, 제조, 유통 등의 인수합병을 통한 사업 확장 등 적극적인 발전을 보이며, 앞으로는 수수료 제로, 할인 이벤트를 통한 가입자 유치 등 활발한 마케팅으로 주 소비자들의 지속적인 이용을 끌어내야 한다. 이 연구를 기반으로 향후 식품 배달 플랫폼 외에 다양한 채널의 배달 플랫폼과 더불어 이용 고객의 총체적 경험 가치를 위한 후속 연구가 필요하다.

• Nuclear Engineering and Technology
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• 제31권2호
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• pp.226-235
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• 1999

Applying digital network technology for advanced nuclear plant requires deterministic communication for tight safety requirements, timely and reliable data delivery for operation-critical and mission-critical characteristics of nuclear plant. Communication protocols, such as IEEE 802/4 Token Bus, IEEE 802/5 Token Ring, FDDI, and ARCnet, which have deterministic communication capability are partially applied to several nuclear power plants. Although digital communication technologies have many advantages, it is necessary to consider the noise immunity from electromagnetic interference (EMI), electrical interference, impulse noise, and heat noise before selecting specific digital network technology for nuclear plant. In this paper, we consider the token frame loss and data frame loss rate due to the link error event, frame size, and link data rate in different protocols, and evaluate the possibility of failure to meet the hard real-time requirement in nuclear plant.

• 한국융합학회논문지
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• 제10권7호
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• pp.115-120
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• 2019

본 연구는 국내 이커머스 시장의 신선식품 배송 패키지 디자인이 발전해야 할 방향성을 제시하는 데 그 목적이 있다. 1차로 문헌연구를 통해 이커머스 식료품과 관련된 소비 트렌드, 콜드체인 시스템, 제로 웨이스트 캠페인에 관하여 이론을 정리하였다. 그리고 국내외 신선식품 배송 패키지에 대해 분석하여 현황을 파악하고 관련 선행연구를 통해 앞으로의 방향성에 대해 알아보았다. 연구 결과, 신선식품을 위한 배송 패키지 디자인은 신선도 유지뿐만 아니라 포장재의 유용성, 편리성과 환경보호 측면을 다각도로 고려하여야 한다. 이커머스 기업은 상품과 함께 패키지를 통해 '신선함'이라는 경험을 전달할 때, 소비자는 오프라인보다 높은 구매율과 충성도를 보여줄 것으로 기대한다.

• International Journal of Computer Science & Network Security
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• 제22권11호
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• pp.331-337
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• 2022

Smart learning is augmented with digital, context-aware, and adaptable technologies to encourage students to learn better and faster. To ensure that digital learning is successful and that implementation is efficient, it is critical that the dimensions of digital learning are arranged correctly and that interactions between the various elements are merged in an efficient and optimal manner. This paper builds and discusses a basic framework for smart learning in the digital age, aimed to improve students' abilities and performance in learning. The proposed framework consists of five dimensions: Teacher, Technology, Learner, Digital content, and Evaluation. The Teacher and Learner dimensions operate on two levels: (a) an abstract level to fit in knowledge and skills or interpersonal characteristics and (b) a concrete level in the form of digital devices used by teachers and learners. Moreover, this paper proposes asynchronous online course delivery model. An Arabic smart learning platform has been developed, based on these smart learning core dimensions and the asynchronous online course delivery model, because despite the official status of this language in many countries, there is a lack of Arabic platforms to teach Arabic. Moreover, many non-native Arabic speakers around the world have expressed an interest in learning it. The Arabic digital platform consists of over 70 lessons classified into three competence levels: beginner, intermediate, and advanced, delivered by Arabic experts and Arabic linguists from various Arab countries. The five dimensions are described for the Arabic platform in this paper. Learner dimension is the Arabic and non-Arabic speakers, Teacher dimension is Arabic experts and Arabic linguistics, Technology dimension consists of technology for Arabic platform that includes web design, cloud computing, big data, etc. The digital contents dimension consists of web-based video, records, etc. The evaluation dimension consists of Teachers rating, comments, and surveys.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제11권12호
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• pp.5981-5997
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• 2017

Advanced Television Systems Committee (ATSC) produced ATSC 2.0 standard, which has been used for a HD/SD digital broadcasting service with MPEG-2 Transport Stream (TS) as a delivery protocol. Recently, users might want to consume multimedia services without being constrained by transport network. However, MPEG-2 TS is not suitable protocol for IP network. Thus, ATSC has enacted ATSC 3.0 standard, which is designed for a hybrid service through a conversion of both broadcasting and broadband channels. The ATSC 3.0 specifies delivery protocols as MPEG Media Transport (MMT) for a broadcasting environment and Dynamic Adaptive Streaming over HTTP (DASH) for a broadband. However, it seems difficult to combine broadcast and broadband for hybrid broadcasting, and it is difficult to synchronize media data between MMT and DASH. This paper suggests various new service scenarios to be brought up by a hybrid broadcasting, ATSC 3.0, and also proposes a stable mechanism for switching contents between different delivery protocols such as MMT and DASH.

• 한국도서관정보학회지
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• 제24권
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• pp.45-79
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• 1996

Rising publication costs and declining financial resources have resulted in renewed interest among librarians in resource sharing. Although the idea of sharing resources is not new, there is a sense of urgency not seen in the past. Driven by rising publication costs and static and often shrinking budgets, librarians are embracing resource sharing as an idea whose time may finally have come. Resource sharing in electronic environments is creating a shift in the concept of the library as a warehouse of print-based collection to the idea of the library as the point of access to need information. Much of the library's material will be delivered in electronic form, or printed. In this new paradigm libraries can not be expected to su n.0, pport research from their own collections. These changes, along with improved communications, computerization of administrative functions, fax and digital delivery of articles, advancement of data storage technologies, are improving the procedures and means for delivering needed information to library users. In short, for resource sharing to be truly effective and efficient, however, automation and data communication are essential. The possibility of using full-text online databases as a su n.0, pplement to interlibrary loan for document delivery is examined. At this point, this article presents possibility of using full-text online databases as a means to interlibrary loan for document delivery. The findings of the study can be summarized as follows : First, turn-around time and the cost of getting a hard copy of a journal article from online full-text databases was comparable to the other document delivery services. Second, the use of full-text online databases should be considered as a method for promoting interlibrary loan services, as it is more cost-effective and labour saving. Third, for full-text databases to work as a document delivery system the databases must contain as many periodicals as possible and be loaded on as many systems as possible. Forth, to contain many scholarly research journals on full-text databases, we need guidelines to cover electronic document delivery, electronic reserves. Fifth, to be a full full-text database, more advanced information technologies are really needed.

• 한국안전학회지
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• 제38권4호
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• pp.32-38
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• 2023

Job stress factors are factors that induce biological, psychological, and behavioral responses in individuals when they encounter mental and physical stimuli in the workplace. According to occupational safety and health standards, employers are responsible for the health consequences of job stress when workers engage in activities that result in high levels of physical fatigue and mental stress. Such activities include long working hours, shift work (including night shifts), driving vehicles, and operating precision machinery. Therefore, precautionary measures should be implemented. Following the COVID-19 epidemic, the logistics industry in Korea has experienced rapid growth owing to the shift from offline to online platforms facilitated by advanced digital infrastructure. Consequently, this study conducted a survey to analyze job stress factors among delivery workers. The survey utilized a Korean job stress factor assessment tool comprising 43 items and analyzed job stress factors considering the work characteristics of the courier business field obtained from responses provided by 421 courier workers nationwide. The survey analysis revealed that the physical environment, job demands, and job autonomy exhibited higher stress indices among Korean workers. Furthermore, the younger the age, the higher the stress on job demands, whereas the higher the age, the higher the stress on relationship conflict, job instability, and workplace culture. In addition, daytime delivery work was associated with higher stress levels in job demands and job instability compared with nighttime delivery work. These findings can serve as foundational data for reducing and preventing job stress among courier workers, whose workload has increased owing to the growth of the logistics industry.

• 융합보안논문지
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• 제8권3호
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• pp.51-56
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• 2008

인터넷 사용자의 폭발적 증거와 전자상거래를 통한 디지털 컨텐츠 유통 시장의 성장 등으로 인해 급격히 증가하는 네트워크 트래픽을 수용하고 처리하기 위해 다양한 연구들이 진행되고 있다. 본 논문은 새로운 네트워크 서비스의 중심으로 등장할 CDN 시스템 환경에서 디지털 컨텐츠와 저작권을 보호하기 위한 방안으로 CDN 기반의 분산 DRM 시스템을 설계한다. 이를 위해 분산 저장되어 있는 컨텐츠에 보다 강한 보안성을 제공하는 DRM 패키지 형식이 정의되었으며, 기존의 CDN 시스템과 상호 운용하기 위한 분산 DRM 시스템의 동작 절차를 제시한다.

• 유통과학연구
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• 제20권12호
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• pp.89-98
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• 2022

Purpose: Due to the rapid growth of e-commerce in Thailand, the operational excellence of distribution service providers has been elevated. Thus, this research investigated the key drivers of operational performance of e-commerce distributors in Thailand. The research contains key variables: the analytics capabilities of an organization, supply chain disruption orientation, innovation capability, and operational performance. Research design, data, and methodology: An online survey is administered to top managers and key personnel (N=425) employed for at least one year in Thailand's top five e-commerce distributors. The sampling methods were conducted using purposive sampling, quota sampling, and convenience sampling. Confirmatory Factor Analysis and Structural Equation Model were applied to analyze and confirm the model's goodness-of-fit and hypothesis testing. Results: The findings reveal that an organization's analytics capabilities significantly affect supply chain disruption orientation and supply chain resilience. Furthermore, operational performance is affected by supply chain disruption, supplier quality management, and innovation capability. Nevertheless, supply chain resilience and digital supply chain have no significant effect on operational performance. Conclusions: The results imply that supply chain digitalization could drive higher operational performance. Distribution businesses are encountering transformation and disruption, which should address the high level of a digital supply chain, innovation, and quality management to maximize their profit margin and delivery service quality.