• 한국정보시스템학회지:정보시스템연구
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• 제31권2호
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• pp.111-136
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• 2022

Purpose The purpose of this study is to examine the effect that insecurity and autonomy of platform work have an influence on work-life balance and psychological well-being in an era of platform economy based on two characteristics of online platform work and self-determination theory. Design/methodology/approach This study suggested the structural equation model integrating two antecedents, insecurity and autonomy, work-life balance, and psychological well-being and proposed five hypotheses driven from the research model. A total of 334 valid samples were collected from platform workers by employing questionnaire including 24 question items of four constructs. Findings Three hypotheses were supported and one hypothesis was not supported at the significance level of 0.05. Insecurity of platform work has a negative influence on work-life balance at the significance level of 0.01, whereas insecurity of platform work has no a significant influence on psychological well-being. Autonomy of platform work has a positive influence on both work-life balance and psychological well-being at the significance level of 0.01. Work-life balance has a positive impact on psychological well-being at the significance level of 0.001. Insecurity have an influence on psychological well-being indirectly through mediation of work-life balance. Implications for academicians and practitioners were suggested.

• Journal of Ship and Ocean Technology
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• 제10권3호
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• pp.17-26
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• 2006

Spar platforms have been installed as a competitive alternative offshore production structure for deepwater oil field. Since the first spar platform was constructed, its configuration has evolved to the so-called the truss spar and then the cell spar. This paper describes the dynamic analysis and fatigue life assessment of steel catenary riser (SCR) connected to cell spar platform. Two different cell spar platforms are considered herein; the original cell spar and the modified one. The original cell spar was modified by introducing an additional damping plate at its bottom in order to reduce wave-frequency motions. Firstly the wave-frequency motions of cell spar platforms are calculated based on the potential theory. Then, the dynamic responses of SCR induced by platform motions are computed. Finally the fatigue life of SCR is estimated by spectral method and the performance of two spar platforms are compared in terms of the fatigue life. Through the present study, it is found that the fatigue life of the modified cell spar increases only slightly.

• International Journal of Internet, Broadcasting and Communication
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• 제14권4호
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• pp.121-131
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• 2022

We look at the initial stage of Meta (previous Facebook)'s new metaverse platform and investigate its platform design in pre-launch and ignition life stage. From the Rocket Model (RM)'s theoretical logic, the results reveal that Meta firstly focuses on investing in key content developers by acquiring virtual reality (VR), video, music content firms and offering production support platform of the augmented reality (AR) content, 'Spark AR' last three years (2019~2021) for attracting high-potential developers and users. In terms of three matching criteria, Meta develops an Artificial Intelligence (AI) powered translation software, partners with Microsoft (MS) for cloud computing and AI, and develops an AI platform for realistic avatar, MyoSuite. In 'connect' function, Meta curates the game concept submitted by game developers, welcomes other game and SNS based metaverse apps, and expands Horizon Worlds (HW) on VR devices to PCs and mobile devices. In 'transact' function, Meta offers 'HW Creator Funding' program for metaverse, launches the first commercialized Meta Avatar Store on Meta's conventional SNS and Messaging apps by inviting all fashion creators to design and sell clothing in this store. Mata also launches an initial test of non-fungible token (NFT) display on Instagram and expands it to Facebook in the US. Lastly, regarding optimization, especially in the face of recent data privacy issues that have adversely affected corporate key performance indicators (KPIs), Meta assures not to collect any new data and to make its privacy policy easier to understand and update its terms of service more user friendly.

• International Journal of Internet, Broadcasting and Communication
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• 제13권1호
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• pp.37-46
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• 2021

Recently, social technologies have been created to solve problems from businesses for the establishment of generational solidarity ecosystem in terms of employment, residential space, network and social capital, age, cognitive and environmental aspects. This is senior-friendly healthcare business system aimed at meeting the senior needs for health life to enjoy active consumption culture life even after retirement, becoming a catalyst for minimizing generational conflicts, preventing the cognitive and physical deterioration of seniority in the areas of life healthcare, fitness and well-aging, and expanding into systems necessary for seniority self-reliance. We would like to draw up the development and requirements of the concept of the service platform for the study of collective characteristics for generation solidarity with senior class and the establishment of a customized senior health life system for generation solidarity. This system is characterized by a platform that can prevent the decline of seniors' cognitive and physical functions and enhance emotional stability. It is significant in providing feedback on the risk perception index, fall index, and prevention training index information to the child through the analysis and extraction of the senior health index for risk perception, fall probability, and fall prevention.

• 한국멀티미디어학회논문지
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• 제23권1호
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• pp.111-125
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• 2020

In modern society, dementia patients are increasing due to busy daily life. Due to the nature of dementia, family members are having a hard time with their caring activities. Dementia diseases reduce the quality of life not only of the patient, but also of the family, and nursing activities lead to social problems such as unemployment or frequent turnover. This study aims to reduce the difficulty and stress of the nursing process by supporting daily life of dementia patients and nursing activities through smart care platform. Ultimately, we will reduce the cost of treatment for people with dementia and delay the worsening of symptoms through a systematic care program for people with dementia. The smart dementia care platform features smart technology to help the dementia patients' daily lives and support their caregivers.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2017년도 춘계학술대회
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• pp.291-293
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• 2017

전력서비스를 지원하는 융합보안시스템 단말장치는 상대적으로 고도의 신뢰성이 요구된다. 특히, 에너지서비스의 복합적인 통신과 데이터 인터페이스장치간의 보안시스템이 유기적으로 연동되어야 한다. 기존의 서비스와 연관성을 두어 시스템을 구축하기 위해서는 시스템독립성과 확장성을 지원하는 생명주기 방식의 보안 서비스플랫폼이 요구된다. 이 보안 서비스플랫폼이 유니버설미들웨어인 OSGi의 Security Layer를 활용하는 것이다. 이 융합보안 플랫폼은 첫째, 실시간으로 운영되는 통신과 데이터 및 응용서비스에 대해 독립적으로 동작 가능하도록 서비스 단위로 모듈화 하였다. 둘째, 보안 레이어 개념을 적용하여 외부 보안 서비스에 대하여 보안모듈의 설치, 삭제, 시작, 중지 및 갱신을 통해 생명주기 모듈로 배포하는 플랫폼을 연구하였다. 그 대상으로 스마트그리드에 필요한 보안시스템으로써의 특성을 평가하였다. 시스템상에서 운용되는 프로토콜의 실행상태에서 프로토콜적용시의 안정성과 하드웨어시스템에 독립적인 유니버설 통신서비스를 제시하였다. 또한, 통신서비스망과 전력서비스망이 융합된 모델과 스마트그리드상의 모듈단위의 보안서비스를 지원하도록 하였다.

• 대한임베디드공학회논문지
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• 제7권5호
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• pp.219-226
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• 2012

The rises of the life index quality together with the medical technology improvement lead to a longer life expectancy. Then a better health care program, especially for elderly, is needed. The common health problems facing those senior citizens are changed from acute diseases to chronic diseases, such as diabetes, hypertension. Then u-Health takes center stage in medical industry. Although u- Health medical device manufacturers have been improving their instruments, these instruments still rely on proprietary technologies without fixed platform. Even if the interface has been provided by the manufacturer, there is no widely-accepted uniform data model to access data of various u-Health devices. IEEE 11073 is a standard attempting to unify the interfaces of all medical devices. In this paper we have proposed a conversion software platform that assures interoperability among medical devices for ubiquitous sensor network. This module uses in order to develop a standard platform of medical system.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2018년도 추계학술대회
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• pp.245-246
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• 2018

시민생활의 안전을 위협하는 자연재난, 사회재난, 사이버재난 등에 대해 재난정보를 수집, 저장 및 지능적인 분석을 통해 사전에 대응책을 제시하는 만족할 만한 수준의 능동적인 생활안전 플랫폼이 부재하였다. 본 연구에서는 시민생활의 안전을 능동적으로 서비스하는 생활안전 플랫폼 설계를 통해 과학기술의 발전에 따른 삶의 질 향상에 기여하고자 한다.

• 무역상무연구
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• 제61권
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• pp.249-272
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• 2014

The purpose of this study is to seek the revitalization plans of export platform for supporting export enterprise of the domestic public services. To activate the export platform, alternatives to two aspects are required as follows. First of all, a governance plan of export platform should be established. At present, an operation entity of export platform, which is still developing stage, is not yet established. In this situation, even though export platform developed, it will faced with inefficient operation. Therefore, an operation entity and appropriate business model are important to the platform activation. second, to activate platform, it is necessary to support export process of life cycle. In particular, the service, which can support the business strategies setting and project implementation stage, is required. In addition, in order to activate the export platform is need to operate with he government's support program.

• Structural Engineering and Mechanics
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• 제31권1호
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• pp.11-24
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• 2009

In China, the oil and natural gas resources of Bohai Bay are mainly marginal oil fields. It is necessary to build both ice-resistant and economical offshore platforms. However, risk is involved in the design, construction, utilization, maintenance of offshore platforms as uncertain events may occur within the life-cycle of a platform under the extreme ice load. In this study, the optimum design model of the expected life-cycle cost for ice-resistant platforms based on cost-effectiveness criterion is proposed. Multiple performance demands of the structure, facilities and crew members, associated with the failure assessment criteria and evaluation functions of costs of construction, consequences of structural failure modes including damage, revenue loss, death and injury as well as discounting cost over time are considered. An efficient approximate method of the global reliability analysis for the offshore platforms is provided, which converts the implicit nonlinear performance function in the conventional reliability analysis to linear explicit one. The proposed life-cycle optimum design formula are applied to a typical ice-resistant platform in Bohai Bay, and the results demonstrate that the life-cycle cost-effective optimum design model is more rational compared to the conventional design.