• Asia-Pacific Journal of Business Venturing and Entrepreneurship
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• v.16 no.5
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• pp.189-203
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• 2021

Environmental changes, which are strongly requiring technological cooperation, such as technological development and strategic alliances according to industrial ecosystem change, have a significant impact on not only product quality but also services. Thus, there is a need for 'servitization' that can satisfy the needs of customers and the ecosystem of businesses through the convergence of manufacturing companies and services. This study uses the Expectation-Confirmation Model to examine the impact on user satisfaction and Continuance Usage Intention. Research(Study) was conducted on users who are using high-tech-based cars. For this, we used Expectation Confirmation(match expections for the user's pre-and post-use relationships), Perceived Ease, Perceived Usefulness, User Satisfaction and Habitual Use and using Continuance Usage Intention as a dependent variable. Their causation was examined with the spss 26.0 and smartpls 2.0 statistical programs. As implications of this study, Expectation Confirmation has been shown to have significant positive effects on Perceived Ease, Perceived Usefulness, User Satisfaction and Habitual Use. For this results, the expectations before and after the use of high-tech cars lead to improved daily lives convenience and(or) work efficiency, leading to user satisfaction and further Continuance Usage Intention. Motors consider it important to pursue the work improvements that consumers want and use it useful in daily lives in the production and sale of high-tech cars. It is expected that it will create natural habits for services that users are satisfied with, and that these habits will affect the continuous growth and understanding of the trend of change.

• Information and Communications Magazine
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• v.33 no.5
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• pp.65-72
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• 2016

사물인터넷 (Internet of Things) 이란 통신 기능이 있는 사물들을 (주변의 정보를 측정할 수 있는 센서, 사물에 대한 제어를 하는 엑츄에이터) 인터넷에 연결하여 보다 스마트한 서비스들을 손쉽고 빠르게 만들어 사용자들에게 제공할 수 있도록 해주는 기술을 말한다. 스마트 시티, 스마트 공장, 스마트 홈 등 다양한 분야에서 사물인터넷 기술을 활용하여 서비스를 만들어 내고 있으며, 앞으로 관련 산업 및 시장 규모는 지속적으로 증가되어질 것으로 보고되어지고 있다. 서로 다른 제조업체 그리고 다양한 산업 분야에서 만들어지는 사물들이 서로 연결되어 하나의 생태계를 이루기 위해서는, 글로벌 표준에 기반하여 기기들이 개발되어져야하며, 이들 사물에 대한 호환성 및 적합성이 검증되어야한다. oneM2M (원엠투엠) 에서는 글로벌한 표준으로 사물인터넷의 서비스 계층에 대한 표준을 만들고 있다. oneM2M은 릴리즈 1 공통기능에 대한 표준 제정을 마쳤으며, 현재 테스팅과 관련하여 상호호환성 및 적합성 테스팅을 위한 표준 개발을 진행하고 있다. 본 고에서는 사물인터넷 기기들에 대한 전반적인 테스트 프레임워크로 활용되어질 수 있는 oneM2M 테스팅 관련 표준 프레임워크에 대한 내용을 소개한다.

• Journal of Dairy Science and Biotechnology
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• v.32 no.1
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• pp.55-62
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• 2014

This study aims to suggest a management system consisting of functional ingredients by establishing guidelines for the analysis of functional animal products in Korea. Further, the guidelines can be used for validity tests of functional animal products. In addition, we can standardize the management system for details, and frame new laws for functional animal products. We researched the current studies on the analysis and assessment of functional foods, and established standard methods of analysis. We devised new analysis and assessment techniques to determine the efficacy and safety of functional ingredients for the legislation and management of functional animal products. This study may contribute to not only the safety and quality of functional animal products but also to enhancing the nation's health and the national image as being health-oriented, through improvements in the productivity and quality of functional animal products.

• Proceedings of the Korea Water Resources Association Conference
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• 2017.05a
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• pp.309-309
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• 2017

EPANET은 U.S. EPA(U.S. Environmental Protection Agency, 미 환경청)에서 개발한 상수관망 시스템의 수리해석 모의 프로그램으로서, 다양한 상수관망의 설계 및 운영을 모의하기 위해 세계적으로 활발히 활용되고 있다. EPANET 프로그램은 사용자 친화적인 GUI(Graphic User Interface) 환경으로 개발되었으며, 직관적인 네트워크 요소와 폭 넓은 모의 옵션을 제공한다는 장점이 있다. 특히, 상수관망의 실무 및 연구 분야에서는 공학용 분석프로그램과 프로그래밍 언어의 활용이 활발해짐에 따라, 이를 EPANET 프로그램과 연계시킬 수 있는 EPANET Toolkit이 개발되면서 그 활용도는 계속해서 확장될 전망이다. 그러나 지속적인 보완에도 불구하고, 기존의 EPANET Toolkit에서 제공하고 있는 기능은 EPANET 프로그램을 전부 반영하지 못하고 있어 실용성 있는 프로그램의 개발이 제한되고 있는 실정이다. 기존 연구에서는 EPANET Toolkit의 미비한 기능에 대해, "프로그램 수행 - 결과 확인 - EPANET 네트워크 수정"을 반복 수행하여 문제를 해결하였으며, 따라서 복잡하고 세밀한 상수관망 모의 연구에 많은 제약이 존재하였다. 본 연구에서는 EPANET Toolkit의 내부를 수정, 보완하여 기존에 고려하지 못하였던 다양한 기능을 추가하여 관련 연구에 활용할 수 있도록 하였다. 구체적으로는 Pump Curve를 변경 및 입력하여 Pump 교체를 위한 최적 펌프용량을 결정하거나, Energy Pattern을 입력하여 손쉽게 전력비용을 산정하는 등의 기능이 개선되었다. 그밖에도 EPANET Toolkit의 활용성을 향상시키기 위한 다양한 함수들을 추가적으로 구성하였으며, 이는 펌프 용량 및 효율 곡선과 배수지 설계 등 상수관망 구성요소의 설계에도 폭 넓게 활용할 수 있을 것으로 기대된다.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.21 no.12
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• pp.120-130
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• 2020

This study examined the effects of perceived value (functional value, social value) and stress (complexity, insecurity) on continuous intention in SNS. In particular, this study examined the direct and indirect impacts of SNS type on the intention of continuing to use SNS. The research model was tested for 461 respondents that used SNS. SPSS 21.0 and PLS 2.0 techniques were used to perform reliability, feasibility, path and hierarchical regression analysis. The summary of the research results is as follows. First, the results indicate that functional value and social value have positive effects on satisfaction. Second, the results indicate that complexity had a negative effect on satisfaction. Third, the results indicate that insecurity and satisfaction have positive effects on continuous intention. Fourth, the results indicate that SNS type had a negative effect on continuous intention. Fifth, it was shown that SNS type had a moderating effect in the relationship between insecurity and continuous intention. Specifically, Insecurity had a stronger effect on continuous intention at closed-type SNS than open-type SNS. These findings suggest that closed-type SNS companies will have to address the anxiety of SNS users by providing various items and system devices.

• Journal of the Korean Society for Library and Information Science
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• v.56 no.1
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• pp.277-296
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• 2022

Despite the characteristics of public data with various potentials, few studies have been conducted on general users who lack an understanding of data as well as on expansion of the service uses. This study examined which digital-service-quality factors affect the intention to continue using public data services based on the expectation confirmation theory. As a result of the analysis, satisfaction partially mediated between expectation agreement and continued use intention for understandability and efficiency, which were combined as one factor, and completely mediated the relationship between perceived usefulness expectation agreement and continued use intention. It can be seen that the more the understanding and usefulness of the information provided by the service is satisfied, the higher the willingness to use it. Accordingly, it suggested adding an electronic bookmark function and the provision of online community for users to improve the overall quality of services. This study is significant in that it provided evidence on which part to focus on when designing electronic services from the point of view of general users.

• Tuberculosis and Respiratory Diseases
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• v.41 no.3
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• pp.205-214
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• 1994

만성 폐쇄성 폐질환(COPD)은 하부 기도 즉 말초기도의 지속적인 미만성 폐쇄로 인하여 불가역성 기류폐쇄를 나타내는 질환을 말하며, 임상적으로 만성 기관지염과 폐기종으로 분류할 수 있으나, 이들은 기능적으로나 병리적으로 서로 중첩되어 임상적으로 명확하게 구별할 수 없기 때문에 만성적, 비특이적으로 진행하는 기류폐쇄의 포괄적인 용어로 COPD를 사용한다. COPD의 특징적인 병리변화는 소기도 즉 막성 세기관지염과 호흡세기관지염이며, 호흡세기관지염을 동반하는 폐기종의 중증도가 기류폐쇄의 정도를 결정하는 중요한 인자로 작용한다.

• The Journal of Society for e-Business Studies
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• v.21 no.1
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• pp.33-63
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• 2016

The diffusion of smartphone has make people engaged in communication with mobile messenger in everyday life. To understand the rapid growth of mobile messenger usage, this study investigates the unique features of mobile messenger services as communication media. Based on the media synchronicity theory and literature about online communication, we identify the functional and emotional features of mobile messenger. In particular, this study demonstrates that functional and emotional features of mobile messenger would influence intimacy and fatigue. Also, intimacy and fatigue, as mediating variables, have an impact on user satisfaction and commitment toward mobile messenger service. The results of this study provide practical implications for mobile messenger providers and users which attempt to facilitate positive effect such as intimacy among users and reduce negative effect such as fatigue on mobile messenger communication.

• Proceedings of the Korea Information Processing Society Conference
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• 2001.04a
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• pp.445-448
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• 2001

The objective of this paper was to cope with the verification of the message transfer protocol that integrates the electronic signature and the distribution and authentication of public key in TCP/IP using security continuity management Choquet fuzzy integral compared with fuzzy integral. They were classified into the security technology, the security policy, the electronic document processing, the electronic document transportation and the encryption and decryption keys in its function. The measures of items of the message security protocol were produced for the verification of the implemented document in every function.

• Korean Journal of Food Science and Technology
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• v.54 no.4
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• pp.369-376
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• 2022

This study was conducted to investigate the efficacy of rose hip utilization on various diseases. Rose hips are produced on a shrub native to Europe, and have been used for medicinal purposes and nutritional supplementation for centuries. It is rich in minerals, vitamins, and various functional compounds, including calcium, magnesium, phosphorus, potassium, selenium, vitamin B, vitamin C, and vitamin E, quercetin, catechin, β-carotene, β-sitosterol, polyphenol, flavonoid, taxifolin, ellagic acid, and salicylic acid. Extracts and powders of rose hips have been reported to contain antioxidant, free radical scavenging, and anti-inflammatory activity, and exert beneficial effects including amelioration of osteoarthritis, body fat reduction, anti-obesity activity, anti-bacterial activity, antidiabetic properties, and anti-cancer activity. Therefore, rose hips as a functional natural food may be considered effective for use in treating diseases including obesity, diabetes, osteoporosis, cardiovascular disease, and cancer.