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Institution

Xiamen University

EducationAmoy, Fujian, China
About: Xiamen University is a education organization based out in Amoy, Fujian, China. It is known for research contribution in the topics: Catalysis & Population. The organization has 50472 authors who have published 54480 publications receiving 1058239 citations. The organization is also known as: Amoy University & Xiàmén Dàxué.


Papers
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Journal ArticleDOI
TL;DR: An active absorption device is proposed based on vanadium dioxide metamaterials that may have tunable spectral applications in sensor, detector, and thermophotovoltaic device working at terahertz frequency bands.
Abstract: An active absorption device is proposed based on vanadium dioxide metamaterials. By controlling the conductivity of vanadium dioxide, resonant absorbers are designed to work at wide range of terahertz frequencies. Numerical results show that a broadband terahertz absorber with nearly 100% absorptance can be achieved, and its normalized bandwidth of 90% absorptance is 60% under normal incidence for both transverse-electric and transverse-magnetic polarizations when the conductivity of vanadium dioxide is equal to 2000 Ω−1cm−1. Absorptance at peak frequencies can be continuously tuned from 30% to 100% by changing the conductivity from 10 Ω−1cm−1 to 2000 Ω−1cm−1. Absorptance spectra analysis shows a clear independence of polarization and incident angle. The presented results may have tunable spectral applications in sensor, detector, and thermophotovoltaic device working at terahertz frequency bands.

221 citations

Journal ArticleDOI
TL;DR: A fractal contagion effect of the COVID-19 pandemic on the stock markets fizzles out over time (in the middle and long run) for both the stock Markets return and volatility.

221 citations

Journal ArticleDOI
TL;DR: In this paper, the authors evaluated 21 elemental proxies, including six proxies based on the C-S-Fe-P system (TOC, S, TOC/S, DOPT, Fe/Al, Corg/P), nine proxy based on trace-metal enrichment factors (CoEF, CrEF, CuEF, MoEF, NiEF, PbEF, UEF, VEF, ZnEF), and six additional proxies from Jones and Manning (1994) (U/Th, Uauth, V/Cr, Ni/Co, Ni

221 citations

Journal ArticleDOI
TL;DR: The fact that the rank reversal phenomenon occurs not only in the AHP but also in many other decision making approaches such as the Borda-Kendall method for aggregating ordinal preferences, the simple additive weighting method, the technique for order preference by similarity to ideal solution (TOPSIS) method, and the cross-efficiency evaluation method in data envelopment analysis (DEA).

221 citations

Journal ArticleDOI
Xiaoqing Huang1, Shaoheng Tang1, Huihui Zhang1, Zhi-You Zhou1, Nanfeng Zheng1 
TL;DR: Novel concave Pd nanocrystals with uniform diameter were successfully prepared in the presence of formaldehyde to demonstrate the tunable degree of concavity and the percentage of {110} of the nanocry crystals are tunable by varying the amount offormaldehyde and the reaction temperature.
Abstract: Novel concave Pd nanocrystals with uniform diameter were successfully prepared in the presence of formaldehyde. While the outer surfaces of the as-prepared concave Pd nanocrystals are {111}, the faces concave toward the polyhedral center are high-surface-energy {110} faces. The degree of concavity and therefore the percentage of {110} of the nanocrystals are tunable by varying the amount of formaldehyde and the reaction temperature. Owing to the existence of active {110} facets, the electrocatalytic activity of the concave Pd nanocrystals displays dependency on their degree of concavity.

221 citations


Authors

Showing all 50945 results

NameH-indexPapersCitations
Zhong Lin Wang2452529259003
Lei Jiang1702244135205
Yang Gao1682047146301
William A. Goddard1511653123322
Rui Zhang1512625107917
Xiaoyuan Chen14999489870
Fuqiang Wang145151895014
Galen D. Stucky144958101796
Shu-Hong Yu14479970853
Wei Huang139241793522
Bin Liu138218187085
Jie Liu131153168891
Han Zhang13097058863
Lei Zhang130231286950
Jian Zhou128300791402
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Performance
Metrics
No. of papers from the Institution in previous years
YearPapers
2023248
2022943
20216,784
20205,710
20194,982
20184,057