Institution
Sogang University
Education•Seoul, South Korea•
About: Sogang University is a education organization based out in Seoul, South Korea. It is known for research contribution in the topics: Computer science & Chemistry. The organization has 6292 authors who have published 12418 publications receiving 213643 citations. The organization is also known as: SU.
Topics: Computer science, Chemistry, Catalysis, Thin film, Biology
Papers published on a yearly basis
Papers
Posted Content•
TL;DR: TAUT provides a useful tool for managers needing to assess the likelihood of success for new technology introductions and helps them understand the drivers of acceptance in order to proactively design interventions targeted at populations of users that may be less inclined to adopt and use new systems.
Abstract: Information technology (IT) acceptance research has yielded many competing models, each with different sets of acceptance determinants. In this paper, we:
(1) review user acceptance literature and discuss eight prominent models,
(2) empirically compare the eight models and their extensions,
(3) formulate a unified model that integrates elements across the eight models, and
(4) empirically validate the unified model.
The eight models reviewed are the theory of reasoned action, the technology acceptance model, the motivational model, the theory of planned behavior, a model combining the technology acceptance model and the theory of planned behavior, the model of PC utilization, the innovation diffusion theory, and the social cognitive theory. Using data from four organizations over a six-month period with three points of measurement, the eight models explained between 17 percent and 53 percent of the variance in user intentions to use information technology. Next, a unified model, called the Unified Theory of Acceptance and Use of Technology (UTAUT), was formulated, with four core determinants of intention and usage, and up to four moderators of key relationships. UTAUT was then tested using the original data and found to outperform the eight individual models (adjusted R2 of 69 percent). UTAUT was then confirmed with data from two new organizations with similar results (adjusted R2 of 70 percent). UTAUT thus provides a useful tool for managers needing to assess the likelihood of success for new technology introductions and helps them understand the drivers of acceptance in order to proactively design interventions (including training, marketing, etc.) targeted at populations of users that may be less inclined to adopt and use new systems. The paper also makes several recommendations for future research including developing a deeper understanding of the dynamic influences studied here, refining measurement of the core constructs used in UTAUT, and understanding the organizational outcomes associated with new technology use.
22,785 citations
TL;DR: The objective is to understand the current research topics, challenges and future directions regarding Blockchain technology from the technical perspective, and recommendations on future research directions are provided for researchers.
Abstract: Blockchain is a decentralized transaction and data management technology developed first for Bitcoin cryptocurrency. The interest in Blockchain technology has been increasing since the idea was coined in 2008. The reason for the interest in Blockchain is its central attributes that provide security, anonymity and data integrity without any third party organization in control of the transactions, and therefore it creates interesting research areas, especially from the perspective of technical challenges and limitations. In this research, we have conducted a systematic mapping study with the goal of collecting all relevant research on Blockchain technology. Our objective is to understand the current research topics, challenges and future directions regarding Blockchain technology from the technical perspective. We have extracted 41 primary papers from scientific databases. The results show that focus in over 80% of the papers is on Bitcoin system and less than 20% deals with other Blockchain applications including e.g. smart contracts and licensing. The majority of research is focusing on revealing and improving limitations of Blockchain from privacy and security perspectives, but many of the proposed solutions lack concrete evaluation on their effectiveness. Many other Blockchain scalability related challenges including throughput and latency have been left unstudied. On the basis of this study, recommendations on future research directions are provided for researchers.
2,166 citations
TL;DR: A traffic model and analysis for cellular mobile radio telephone systems with handoff, which shows, for example, blocking probability, forced termination probability, and fraction of new calls not completed, as functions of pertinent system parameters.
Abstract: A traffic model and analysis for cellular mobile radio telephone systems with handoff are described. Three schemes for call traffic handling are considered. One is nonprioritized and two are priority oriented. Fixed channel assignment is considered. In the nonprioritized scheme the base stations make no distinction between new call attempts and handoff attempts. Attempts which find all channels occupied are cleared. In the first priority scheme considered, a fixed number of channels in each cell are reserved exclusively for handoff calls. The second priority scheme employs a similar channel assignment strategy, but, additionally, the queueing of handoff attempts is allowed. Appropriate analytical models and criteria are developed and used to derive performance characteristics. These show, for example, blocking probability, forced termination probability, and fraction of new calls not completed, as functions of pertinent system parameters. General formulas are given and specific numerical results for nominal system parameters are presented.
1,711 citations
TL;DR: This study outlines observing scenarios for Advanced LIGO, Virgo, and KAGRA detectors to facilitate multi-messenger astronomy, estimating network sensitivity and sky localization capabilities for transient gravitational-wave signals, particularly binary neutron star inspirals.
Abstract: Abstract We present possible observing scenarios for the Advanced LIGO, Advanced Virgo and KAGRA gravitational-wave detectors over the next decade, with the intention of providing information to the astronomy community to facilitate planning for multi-messenger astronomy with gravitational waves. We estimate the sensitivity of the network to transient gravitational-wave signals, and study the capability of the network to determine the sky location of the source. We report our findings for gravitational-wave transients, with particular focus on gravitational-wave signals from the inspiral of binary neutron star systems, which are the most promising targets for multi-messenger astronomy. The ability to localize the sources of the detected signals depends on the geographical distribution of the detectors and their relative sensitivity, and $$90\%$$ 90 % credible regions can be as large as thousands of square degrees when only two sensitive detectors are operational. Determining the sky position of a significant fraction of detected signals to areas of 5– $$20~\mathrm {deg}^2$$ 20 deg 2 requires at least three detectors of sensitivity within a factor of $$\sim 2$$ ∼ 2 of each other and with a broad frequency bandwidth. When all detectors, including KAGRA and the third LIGO detector in India, reach design sensitivity, a significant fraction of gravitational-wave signals will be localized to a few square degrees by gravitational-wave observations alone.
1,173 citations
TL;DR: It is demonstrated that FePS3 exhibits an Ising-type antiferromagnetic ordering down to the monolayer limit, in good agreement with the Onsager solution for two-dimensional order-disorder transition.
Abstract: Magnetism in two-dimensional materials is not only of fundamental scientific interest but also a promising candidate for numerous applications. However, studies so far, especially the experimental ones, have been mostly limited to the magnetism arising from defects, vacancies, edges, or chemical dopants which are all extrinsic effects. Here, we report on the observation of intrinsic antiferromagnetic ordering in the two-dimensional limit. By monitoring the Raman peaks that arise from zone folding due to antiferromagnetic ordering at the transition temperature, we demonstrate that FePS3 exhibits an Ising-type antiferromagnetic ordering down to the monolayer limit, in good agreement with the Onsager solution for two-dimensional order–disorder transition. The transition temperature remains almost independent of the thickness from bulk to the monolayer limit with TN ∼ 118 K, indicating that the weak interlayer interaction has little effect on the antiferromagnetic ordering.
972 citations
Authors
Showing all 6340 results
| Name | H-index | Papers | Citations |
|---|---|---|---|
| Manfred T. Reetz | 110 | 959 | 42941 |
| Peng Wang | 108 | 1672 | 54529 |
| Gynheung An | 98 | 389 | 27386 |
| Y. R. Shen | 98 | 476 | 37313 |
| Juan J. de Pablo | 92 | 622 | 31793 |
| Luke P. Lee | 84 | 413 | 22803 |
| John J. Oh | 84 | 272 | 52764 |
| Wonwoo Nam | 84 | 405 | 23475 |
| Sangmin Lee | 81 | 289 | 30324 |
| Masayoshi Tomizuka | 80 | 1111 | 30069 |
| Kookheon Char | 70 | 431 | 16484 |
| Barry C. Sanders | 67 | 560 | 18474 |
| Young Hae Choi | 66 | 255 | 14921 |
| Kevin Kit Parker | 66 | 211 | 15241 |
| Hyunjoo Lee | 62 | 475 | 16302 |
Related Institutes (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2026 | 6 |
| 2025 | 116 |
| 2024 | 127 |
| 2023 | 243 |
| 2022 | 92 |
| 2021 | 635 |