Institution
Pusan National University
Education•Busan, South Korea•
About: Pusan National University is a education organization based out in Busan, South Korea. It is known for research contribution in the topics: Population & Catalysis. The organization has 24124 authors who have published 45054 publications receiving 819356 citations. The organization is also known as: Busan National University & Pusan University.
Topics: Population, Catalysis, Thin film, Apoptosis, Microstructure
Papers published on a yearly basis
Papers
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TL;DR: A rationalized mechanism mediated by the zinc center of MOF-205 for the CO2-epoxide cycloaddition reaction has been proposed, and significant conversion of various epoxides was obtained at room temperature, with excellent selectivity toward the desired five-membered cyclic carbonates.
Abstract: A dual-porous, three-dimensional, metal–organic framework [Zn4O(2,6-NDC)(BTB)4/3] (MOF-205, BET = 4200 m2/g) has been synthesized using microwave power as an alternative energy source for the first time, and its catalytic activity has been exploited for CO2–epoxide coupling reactions to produce five-membered cyclic carbonates under solvent-free conditions. Microwave synthesis was performed at different time intervals to reveal the formation of the crystals. Significant conversion of various epoxides was obtained at room temperature, with excellent selectivity toward the desired five-membered cyclic carbonates. The importance of the dual porosity and the synergistic effect of quaternary ammonium salts on efficiently catalyzed CO2 conversion were investigated using various experimental and physicochemical characterization techniques, and the results were compared with those of the solvothermally synthesized MOF-205 sample. On the basis of literature and experimental inferences, a rationalized mechanism medi...
133 citations
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TL;DR: PhyloDraw is a unified viewing tool for phylogenetic trees that visualizes various kinds of tree diagrams and can export the final tree layout to BMP (bitmap image format) and PostScript.
Abstract: Summary: PhyloDraw is a unified viewing tool for phylogenetic trees. PhyloDraw supports various kinds of multi-alignment formats (Dialign2, Clustal-W, Phylip format, NEXUS, MEGA, and pairwise distance matrix) and visualizes various kinds of tree diagrams, e.g. rectangular cladogram, slanted cladogram, phylogram, unrooted tree, and radial tree. By using several control parameters, users can easily and interactively manipulate the shape of phylogenetic trees. This program can export the final tree layout to BMP (bitmap image format) and PostScript. Availability: http:// pearl.cs.pusan.ac.kr/ phylodraw/
133 citations
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TL;DR: In this paper, the authors study the statistics and energy of cosmological simulations of a concordance ΛCDM universe, with a special emphasis on the effects of nongravitational processes such as radiative cooling, photoionization/heating, and galactic superwind feedbacks.
Abstract: Cosmological shock waves result from supersonic flow motions induced by hierarchical clustering of nonlinear structures in the universe. These shocks govern the nature of cosmic plasma through thermalization of gas and acceleration of nonthermal, cosmic-ray (CR) particles. We study the statistics and energetics of shocks formed in cosmological simulations of a concordance ΛCDM universe, with a special emphasis on the effects of nongravitational processes such as radiative cooling, photoionization/heating, and galactic superwind feedbacks. Adopting an improved model for gas thermalization and CR acceleration efficiencies based on nonlinear diffusive shock acceleration calculations, we then estimate the gas thermal energy and the CR energy dissipated at shocks through the history of the universe. Since shocks can serve as sites for generation of vorticity, we also examine the vorticity that should have been generated mostly at curved shocks in cosmological simulations. We find that the dynamics and energetics of shocks are governed primarily by the gravity of matter, so other nongravitational processes do not significantly affect the global energy dissipation and vorticity generation at cosmological shocks. Our results reinforce scenarios in which the intracluster medium and warm-hot intergalactic medium contain energetically significant populations of nonthermal particles and turbulent flow motions.
133 citations
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TL;DR: This work is presented at the I1 World Congress for Integrative Medicine & Health 2017 a global forum for exploring the future of comprehensive patient care in Washington, DC.
Abstract: I1 World Congress for Integrative Medicine & Health 2017 A global forum for exploring the future of comprehensive patient care Benno Brinkhaus, Torkel Falkenberg, Aviad Haramati, and Stefan N. Willich Institute for Social Medicine, Epidemiology and Health Economics, Charité – Universitätsmedizin Berlin, Berlin, Germany; Department of Neurobiology Care Sciences and Society, Division of Nursing, Research Group Integrative Care, Karolinska Institutet, Stockholm, Sweden; I C – The Integrative Care Science Center, Järna, Sweden; Department of Biochemistry, Molecular and Cellular Biology, Georgetown University, Medical Center, Washington, DC, USA; Department of Medicine, Georgetown University Medical Center, Washington, DC, USA BMC Complementary and Alternative Medicine 2017, 17(Suppl 1):I1
133 citations
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TL;DR: Nb doping of two-dimensional (2D) MoSe2 layered nanomaterials is a promising approach to improve their gas sensing performance and could be precisely controlled by varying the number of Nb2O5 deposition cycles in the plasma enhanced atomic layer deposition process.
Abstract: Here, we report that Nb doping of two-dimensional (2D) MoSe2 layered nanomaterials is a promising approach to improve their gas sensing performance. In this study, Nb atoms were incorporated into a 2D MoSe2 host matrix, and the Nb doping concentration could be precisely controlled by varying the number of Nb2O5 deposition cycles in the plasma enhanced atomic layer deposition process. At relatively low Nb dopant concentrations, MoSe2 showed enhanced device durability as well as NO2 gas response, attributed to its small grains and stabilized grain boundaries. Meanwhile, an increase in the Nb doping concentration deteriorated the NO2 gas response. This might be attributed to a considerable increase in the number of metallic NbSe2 regions, which do not respond to gas molecules. This novel method of doping 2D transition metal dichalcogenide-based nanomaterials with metal atoms is a promising approach to improve the performance such as stability and gas response of 2D gas sensors.
133 citations
Authors
Showing all 24296 results
Name | H-index | Papers | Citations |
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Hyun-Chul Kim | 176 | 4076 | 183227 |
Taeghwan Hyeon | 139 | 563 | 75814 |
George C. Schatz | 137 | 1155 | 94910 |
Darwin J. Prockop | 128 | 576 | 87066 |
Mark A. Ratner | 127 | 968 | 68132 |
Csaba Szabó | 123 | 958 | 61791 |
David E. McClelland | 107 | 602 | 72881 |
Yong Sik Ok | 102 | 854 | 41532 |
C. M. Mow-Lowry | 101 | 378 | 66659 |
I. K. Yoo | 101 | 437 | 32681 |
Haijun Yang | 100 | 403 | 35114 |
Buddy D. Ratner | 99 | 501 | 35660 |
Dong Jo Kim | 98 | 497 | 36272 |
Shuzhi Sam Ge | 97 | 883 | 40865 |
B. J. J. Slagmolen | 96 | 349 | 62356 |