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Institution

Yonsei University

EducationSeoul, South Korea
About: Yonsei University is a education organization based out in Seoul, South Korea. It is known for research contribution in the topics: Population & Cancer. The organization has 50162 authors who have published 106172 publications receiving 2279044 citations. The organization is also known as: Yonsei.


Papers
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Journal ArticleDOI
TL;DR: It was found that innovation attributes have an impact on constructs in the extended technology acceptance model such as perceived usefulness, perceived ease of use and perceived resources, which support the idea that congruent experiences and opportunities in adopting a new technology affect user attitudes through the three extended technologyaccept model constructs.
Abstract: Although many countries are attempting to build an information infrastructure and accelerate the adoption of broadband Internet access technology, the results are not always satisfactory. The focus of earlier research on the diffusion and adoption of broadband Internet access has been primarily on the construction of a national-level infrastructure or on macro-level factors such as government policies, market competition and the density of population. This research highlights the individual-level factors affecting the adoption of broadband access, integrating various views on the adoption and diffusion of technology, including the technology acceptance model, theory of planned behaviour and diffusion of innovation model. An extended technology acceptance model incorporating the notion of perceived resources is proved to be relevant in the adoption of broadband technologies. It was found that innovation attributes, such as compatibility, visibility and result demonstrability, have an impact on constructs in the extended technology acceptance model such as perceived usefulness, perceived ease of use and perceived resources. These results also support the idea that congruent experiences and opportunities in adopting a new technology affect user attitudes through the three extended technology acceptance model constructs above. This research suggests that efforts should be made to expand the compatible experience base of broadband Internet in order to facilitate its adoption and use. This paper also provides an extensive review of the adoption behaviour of individuals by incorporating different views and theories.

250 citations

Journal ArticleDOI
TL;DR: Topical application of [6]-gingerol onto shaven backs of female ICR mice prior to each topical dose of 12-O-tetradecanoylphorbol-13-acetate (TPA) significantly inhibited 7,12-dimethylbenz[a]anthracene-induced skin papillomagenesis and suppressed TPA-induced epidermal ornithine decarboxylase activity and inflammation.

250 citations

Journal ArticleDOI
25 Sep 2012-PLOS ONE
TL;DR: Transient elastography can be performed with good diagnostic accuracy for quantifying liver fibrosis in patients with CHB, according to a meta-analysis.
Abstract: Background Transient elastography (TE), a non-invasive tool that measures liver stiffness, has been evaluated in meta-analyses for effectiveness in assessing liver fibrosis in European populations with chronic hepatitis C (CHC). However, these data cannot be extrapolated to populations in Asian countries, where chronic hepatitis B (CHB) is more prevalent. In this study, we performed a meta-analysis to assess the overall performance of TE for assessing liver fibrosis in patients with CHB.

250 citations

Journal ArticleDOI
TL;DR: Most of critical impediments that large organizations face in the implementation of ERP systems are from functional coordination problems related to inadequate support from functional units and coordination among functional units, the project management related to business process change, and changemanagement related to resistance of users.
Abstract: Purpose – As the number of organizations that have implemented enterprise resourceplanning (ERP) systems unsuccessfully increase, it is necessary to establish the impediments in ERP implementations and the extent to which these impact the success of ERP projects. This study aims to identify the critical impediments that large organizations face in the implementation of ERP systems, and the impact of these impediments on overall success of ERP projects by a survey of Fortune 500 organizations.Design/methodology/approach – A survey was prepared based on 47 impediments identified from previous ERP implementation studies.Findings – This study finds that most of critical impediments are from functional coordination problems related to inadequate support from functional units and coordination among functional units, the project management related to business process change, and change management related to resistance of users. In this study, impediments are categorized based on project phases, and differences i...

250 citations

Journal ArticleDOI
TL;DR: In this article, a dual sorting algorithm is proposed for reducing the switching commutations of each power module as well as for voltage balancing control in modular multilevel converter (MMC) topology.
Abstract: This paper presents design and control methods for fault-tolerant operations with redundant converter modules, one of the most prominent features in modular multilevel converter (MMC) topology. In fully implementing MMC functionalities, a nearest level control is applied as a low-switching modulation method. A dual sorting algorithm is newly proposed for effectively reducing the switching commutations of each power module as well as for voltage balancing control. Built upon these primary MMC topological and control features, its redundant operation is comprehensively investigated for fail-safe energy transfer. In particular, a novel spare process is proposed to handle an emergency situation when the number of faulty power modules exceeds the module redundancy. Since topological redundancy may cause the switching commutations of power modules in an arm to be unevenly distributed, a practical and effective mitigation measure is incorporated to keep the energy balance while avoiding the undesired switching stresses. Rigorous simulation studies for MMC and its application for high-voltage direct current are performed to demonstrate the validity and effectiveness of the proposed spare process under normal and emergency conditions.

250 citations


Authors

Showing all 50632 results

NameH-indexPapersCitations
Younan Xia216943175757
Peer Bork206697245427
Ralph Weissleder1841160142508
Hyun-Chul Kim1764076183227
Gregory Y.H. Lip1693159171742
Yongsun Kim1562588145619
Jongmin Lee1502257134772
James M. Tiedje150688102287
Guanrong Chen141165292218
Kazunori Kataoka13890870412
Herbert Y. Meltzer137114881371
Peter M. Rothwell13477967382
Tae Jeong Kim132142093959
Shih-Chang Lee12878761350
Ming-Hsuan Yang12763575091
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Performance
Metrics
No. of papers from the Institution in previous years
YearPapers
2023203
2022753
20217,800
20207,310
20196,827
20186,298