• Asia pacific journal of information systems
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• 제29권2호
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• pp.308-327
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• 2019

The concept of sharing economy has received rich attention in recent years. As a typical type of business model in the sharing economy, online short rent has been paid attention by both industry and academia. In this study, we find trust to be a critical determinant to the success of online short rent platforms. Based on three dimensions of trust theory, i.e., ability, benevolence and integrity, we investigate the factors influencing tenant' willingness to participate in online short rent. We further examine the extent to which trust can influence the number of sales and comments of rooms listed at online short-term rent platforms, which can represent tenant' willingness to participate in the sharing economy. The results show that the trust dimensions represented by a landlord's personal characteristics have significant positive correlations with the number of sales and comments. For example, the real name authentication and the sesame score can represent the trust integrity; online replay ratio and the average confirmation time representing the trust sincerity, and the order acceptance ratio representing the trust ability. On this basis, we proposed some recommendations for both platforms and landlords. For example, the landlords can improve the tenants' trust by authenticating his/her real name, replying actively and timely. For platforms, when they make housing list ranking rules, they can take the landlord's personal attributes that may affect trust into consideration. Moreover, platforms can also allow landlords to supply value-added services to improve service quality and ultimately promote the virtuous circle of the platform ecosphere. Through conducting the empirical research on a particular application of the sharing economy, we aim to fill the research gap of this field in China and provide theoretical and practical contributions to the future development of online short rent.

• 전자공학회논문지B
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• 제31B권3호
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• pp.1-13
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• 1994

In this study under the distributed system for efficient distribution resource completely symmetic global scheduler was designed and implemented to obtain the general global scheduler, that is load balancing as sharing objectives. To balance the system's load efficiently each node must be designed to get right decision-making. Thus we considered computing time to estimate fault such as delay on communication network, communication period and other decision-making. Load balancing mechanism which suggested in this study was implemented in the distributed system which IBM PC/AT linked to and composed with Ethernet. The target operating system was composed of IBM PC/AT as a basic construction in which proper type of UNIX operating system were ported and communication layer chose communication type implemented from Amoeba. The method of IPC employing layered multilevel access method to avoid inefficient protocol using direct communication mode guarantees rapid response due to short ready time for IPC.

• 한국멀티미디어학회논문지
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• 제8권5호
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• pp.587-595
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• 2005

MPEG-21 이벤트 리포팅은 MPEG-21 멀티미디어 프레임워크에서 디지털 아이템, 사용자, 피어 사이에 발생하는 보고 가능한 이벤트에 대한 표준적인 상호작용 방법을 제공하는 기술이다. 본 논문에서는 MPEG-21 이벤트 리포팅 구현을 위한 중요한 요소인 시간 구조를 정의하기 위하여 이벤트 리포팅에서 사용되는 시간의 종류 및 그 특성을 분석하여 공통적으로 적용할 수 있는 시간 구조를 정의하였다 표준에서의 상호운용성과 확장성을 제공하기 위하여 XML로 정의하여 예제를 구현하였고, 본 논문에서 정의한 구조가 국제표준 "ISO/IEC 21000-Part 15: Event Reporting WD 2.0"에 채택됨으로써 객관성 및 정당성을 입증 받았다.

• 한국산학기술학회논문지
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• 제18권2호
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• pp.47-60
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• 2017

교통 분야에서 대표적인 공유 사례로 꼽히는 카셰어링(Car Sharing)은 한 대의 차량을 여러 사람이 짧은 시간 단위로 나눠 쓰는 이용 형태로써, 비영리 단체에서 운영하는 NFP(Not For Profit), 수익을 목적으로 민간 기업이 개인을 상대로 운영하는 B2C(Business to Customer), 개인과 개인이 직접 연결되는 P2P(Peer to Peer) 방식으로 운영형태가 구분된다. 이 중 P2P 카셰어링은 개인이 소유한 차량을 공유하는 방식이며 추가적인 차량 구매율을 감소시키고 유휴 차량을 최소화하여 교통혼잡완화 및 효율적인 교통수요관리가 가능하다는 장점이 있다. 본 연구는 공유 개념을 도입한 교통수요관리 정책 마련 및 지속가능한 교통 체계로의 전환을 위한 전략으로 P2P 카셰어링 도입 방안을 고찰하고, 도입 시에 예상되는 제약사항 및 운영활성화 방안을 제시하였다. 연구의 공간적 범위는 서울시 아파트 단지를 대상으로 하였다. 아파트 단지 내에서는 관리사무소 활용에 따른 운영적 측면에서의 지출규모 최소화가 가능하고 주차면 확보에 큰 문제가 없는 점 등이 P2P 카셰어링을 원활하게 운영할 수 있는 여건으로 판단되었다.

• 전력전자학회:학술대회논문집
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• 전력전자학회 2003년도 춘계전력전자학술대회 논문집(1)
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• pp.27-30
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• 2003

This paper describes two novel current fed high frequency resonant inverter can be used as the power supp]y for wax-sealing. This two topology can be obtained higher output frequency than switching frequency by composing modified unit inverter based on conventional half-bridge serial resonant inverter in parallel with input power source. also, By using time-sharing gate control method, this proposed inverter can not only realize the output control of dependence irrespective of the switching frequency using phase-shift but also reduce switching loss because it has ZVS function. Simulation results through the Pspice have demonstrated the feasibility of the proposed inverter. This proposed inverter will be able to be practically used as a power supply in various fields as induction heating applications, DC-DC converter etc.

• 디지털산업정보학회논문지
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• 제8권4호
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• pp.217-230
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• 2012

To look at Korea trade environment, as increasing the quantity of goods transported in North-East Asia and deepening national competitive, information-oriented logistics environment is needed. That means it is automated work process and can provide value-added service. To do this, logistics business can be efficiently handled through "Electronic Means for the Clearance of Ships" and electronically data processing. Also, by increasing the risk of international terrorism, regulation regarding to logistics security has strengthened around the advanced country, such as USA and EU, etc. or international organization, such as IMO, ISO, etc.. Furthermore, because trade and logistics environment is changing and security becomes more important in logistics area, movement or status information of goods within the port or in entry in/out becomes more and more be needed in real time. In case cross-border logistics activities, international cooperation or agreement between countries is very important. However, different opinions much happened on defining the interface. If to follow one format or type using at a specific country or organization, it was occurred to difficulty in respect of interoperability as well as additional costs or time. Therefore, this paper proposes common interface model to exchange information for the efficient global SCM for using by the output of Korea R&D project, "National Logistics Standardization System Development".

• Child Health Nursing Research
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• 제29권3호
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• pp.166-181
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• 2023

Purpose: This study examined the literature concerning the burdens of parents of preschool-aged children diagnosed with type 1 diabetes mellitus. Methods: We employed an integrative review methodology based on Whittemore and Knafl's framework. The literature search was conducted using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines across four electronic databases: PubMed, Web of Science, the Cumulative Index to Nursing Allied Health Literature (CINAHL), and PsycINFO. Ultimately, 18 articles were included in the review. Results: The review yielded four themes: (1) parental burdens, (2) factors related to the burdens, (3) coping strategies, and (4) implications for clinical practice. Parents experienced psychological, physical, and social burdens due to the diabetes care of their children. Several factors influenced burdens, including child-related characteristics such as age, severity of diabetes, and hospitalization experience, as well as parental factors like family income, race, and residential area. Parents initially felt burdened when their child was diagnosed with type 1 diabetes, but over time, they often adapted to the situation through support and sharing of responsibilities. Parents desired education and interventions reflecting the unique characteristics of preschoolers. Conclusion: This integrative literature review revealed that parents experience numerous burdens when their child is diagnosed with diabetes. Future research should focus on developing interventions to address parents' psychological difficulties, including tracking parental psychological changes over time. Tailored nursing interventions should also be provided to parents of preschool-aged children, as opposed to the more generic nursing interventions traditionally applied across all age groups of children in clinical settings.

• 대한전기학회논문지
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• 제39권2호
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• pp.157-163
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• 1990

The PWM inverter investigated in this paper utilizes a bridge type current sharing reactor circuit with tow pairs of complementary transistor at each phase. The driving signals for this inverter are 3 level PWM waves of W type an M type modulation, which are obtained from a microprocessor based on the switching time data obtained by switching position calculation of triangular and sine modulation wave. The output voltage waveforms of this inverter have 5 level phase voltage and 9 level line voltage of PWM. The harmonics of the output voltage are reduced to half when it is compared with single CTI, and the occurrence of harmonics is also reduced.

• 벤처창업연구
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• 제11권3호
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• pp.233-242
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• 2016

스타트업은 시장의 비즈니스 기회를 신속하게 포착하고, 경험해보거나 예측하지 못한 다양한 문제들에 발 빠르게 대처하고 해결해야만 혁신적인 제품이나 서비스의 개발, 투자 유치 등이 가능하다. 이러한 조직의 민첩성은 구성원들 사이의 원활한 지식 공유를 통해서 갖출 수 있는데, 이때 스타트업은 조직의 비전을 공유하면서 인식을 같이 하는 동시에 서로의 의견에 대립하고 반목하는 갈등 또한 함께 발생하게 된다. 본 연구에서는 실제 스타트업 환경에서 빈번하게 발생하는 갈등을 과업 갈등과 관계 갈등으로 구분하고, 지식공유와 민첩성에 미치는 영향에 대하여 실증분석을 실시하였다. 이때, 조직의 비전을 공유하는 정도가 갈등과 지식 공유의 영향관계를 조절하고 더 나아가 지식 공유 자체에 직접적으로 영향을 미치는 관계를 함께 분석하였다. 조직이 설립된 지 5년 미만의 스타트업 팀 182개를 대상으로 설문조사를 통해 데이터를 수집하고 PLS를 이용하여 통계적으로 분석하였다. 분석 결과, 과업 갈등과 공유된 비전은 지식 공유에 직접적인 영향을 미치고, 지식 공유를 통해 조직의 민첩성을 높이는 것으로 나타났다. 그리고 공유된 비전의 정도가 높을수록 갈등의 전반적인 영향을 상쇄하는 조절효과가 있음이 밝혀졌다. 이 결과를 바탕으로 스타트업 조직의 이해관계자들을 위한 이론적, 실무적 시사점을 제시하였다.

• 전기학회논문지
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• 제66권2호
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• pp.328-338
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• 2017

In this paper, a zero torque control scheme adopting current sharing function (CSF) used in integrated Switched Reluctance Motor (SRM) drive with DC battery charger is proposed. The proposed control scheme is able to achieve the keeping position (KP), zero torque (ZT) and power factor correction (PFC) at the same time with a simple novel current sharing function algorithm. The proposed CSF makes the proper reference for each phase windings of SRM to satisfy the total charging current of the battery with zero torque output to hold still position with power factor correction, and the copper loss minimization during of battery charging is also achieved during this process. Based on these, CSFs can be used without any recalculation of the optimal current at every sampling time. In this proposed integrated battery charger system, the cost effective, volume and weight reduction and power enlargement is realized by function multiplexing of the motor winding and asymmetric SR converter. By using the phase winding as large inductors for charging process, and taking the asymmetric SR converter as an interleaved converter with boost mode operation, the EV can be charged effectively and successfully with minimum integral system. In this integral system, there is a position sliding mode controller used to overcome any uncertainty such as mutual inductance or DC offset current sensor. Power factor correction and voltage adaption are obtained with three-phase buck type converter (or current source rectifier) that is cascaded with conventional SRM, one for wide input and output voltage range. The practicability is validated by the simulation and experimental results by using a laboratory 3-hp SRM setup based on TI TMS320F28335 platform.