Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Libor Kovář"'
Publikováno v:
Lubricants, Vol 11, Iss 12, p 504 (2023)
Scaled rolling contact fatigue tests, used to practically simulate the wear of the wheel and rail material under laboratory conditions, are typically classified into two categories. Tests in the first category use twin-disc stands, while the second g
Externí odkaz:
https://doaj.org/article/5467679bb965425897e02ac45ac049df
Autor:
Jinfa Chang, Guanzhi Wang, Xiaoxia Chang, Zhenzhong Yang, Han Wang, Boyang Li, Wei Zhang, Libor Kovarik, Yingge Du, Nina Orlovskaya, Bingjun Xu, Guofeng Wang, Yang Yang
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-15 (2023)
It is challenging to develop high-activity and durable catalysts for both ethanol oxidation reaction on the anode and oxygen reduction reaction on the cathode. Here in this work, authors proposed Pd/Co@N-C catalyst as a model to synergistically maxim
Externí odkaz:
https://doaj.org/article/850015099f8f49d3b38f1a04283ce03e
Autor:
Ivan Cokic, Shing Fai Chan, Xingmin Guan, Anand R. Nair, Hsin-Jung Yang, Ting Liu, Yinyin Chen, Diego Hernando, Jane Sykes, Richard Tang, John Butler, Alice Dohnalkova, Libor Kovarik, Robert Finney, Avinash Kali, Behzad Sharif, Louis S. Bouchard, Rajesh Gupta, Mayil Singaram Krishnam, Keyur Vora, Balaji Tamarappoo, Andrew G. Howarth, Andreas Kumar, Joseph Francis, Scott B. Reeder, John C. Wood, Frank S. Prato, Rohan Dharmakumar
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-18 (2022)
It is unclear why hemorrhagic myocardial infarctions (hMI) are destined for adverse outcomes. Here, the authors show that hMI drives fatty degeneration of infarct territories and contributes to adverse remodeling of the heart, which can be mitigated
Externí odkaz:
https://doaj.org/article/3fcbb124b97648aaa977eecd97230304
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-11 (2022)
Abstract In computed TEM tomography, image segmentation represents one of the most basic tasks with implications not only for 3D volume visualization, but more importantly for quantitative 3D analysis. In case of large and complex 3D data sets, segme
Externí odkaz:
https://doaj.org/article/943cc920455544de953c779689ea1440
Autor:
Konstantin Khivantsev, Miroslaw A. Derewinski, Libor Kovarik, Mark Bowden, Xiaohong Shari Li, Nicholas R. Jaegers, Daria Boglaienko, Xavier I. Pereira-Hernandez, Carolyn Pearce, Yong Wang, Janos Szanyi
Publikováno v:
Catalysts, Vol 14, Iss 1, p 56 (2024)
Replacing alkaline for alkaline-earth metal hydroxide in the synthesis gel during the synthesis of siliceous SSZ-13 zeolite (Si/Al~10) yields SSZ-13 with novel, advantageous properties. Its NH4-form ion-exchanges higher amount of isolated divalent M(
Externí odkaz:
https://doaj.org/article/214f8d462f2d4f5e86ac33a57b8fafb7
Autor:
Rebecca A. Lybrand, Odeta Qafoku, Mark E. Bowden, Michael F. Hochella, Libor Kovarik, Daniel E. Perea, Nikolla P. Qafoku, Paul A. Schroeder, Mark G. Wirth, Dragos G. Zaharescu
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-16 (2022)
Abstract Nutrient foraging by fungi weathers rocks by mechanical and biochemical processes. Distinguishing fungal-driven transformation from abiotic mechanisms in soil remains a challenge due to complexities within natural field environments. We exam
Externí odkaz:
https://doaj.org/article/2df04775fd1a4e8c8d86f13065701b7d
Autor:
Konstantin Khivantsev, Nicholas R. Jaegers, Hristiyan A. Aleksandrov, Libor Kovarik, Miroslaw A. Derewinski, Yong Wang, Georgi N. Vayssilov, Janos Szanyi
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-8 (2021)
CO oxidation is of importance both for inorganic and living systems. Here the authors demonstrate that CO can be oxidized by nitrate in small-pore SSZ-13 zeolite at a temperature below −100 °C using spectroscopy and density functional theory calcu
Externí odkaz:
https://doaj.org/article/1bc86d0405404f7e9cbbf208f08a3134
Autor:
Alice C. Dohnalkova, Malak M. Tfaily, Rosalie K. Chu, A. Peyton Smith, Colin J. Brislawn, Tamas Varga, Alex R. Crump, Libor Kovarik, Linda S. Thomashow, James B. Harsh, C. Kent Keller, Zsuzsanna Balogh-Brunstad
Publikováno v:
Frontiers in Earth Science, Vol 10 (2022)
Soil microbial communities affect the formation of micro-scale mineral-associated organic matter (MAOM) where complex processes, including adhesion, aggregate formation, microbial mineral weathering and soil organic matter stabilization occur in a na
Externí odkaz:
https://doaj.org/article/fd8b2ec666dc4f4a8709aca52ebab362
Autor:
Yanran Cui, Johnny Zhu Chen, Bo Peng, Libor Kovarik, Arun Devaraj, Zhe Li, Tao Ma, Yilin Wang, Janos Szanyi, Jeffrey T. Miller, Yong Wang, Feng Gao
Publikováno v:
JACS Au, Vol 1, Iss 4, Pp 396-408 (2021)
Externí odkaz:
https://doaj.org/article/f345004c3ea748a39d0f86d38b4cc964
Autor:
Yifeng Zhu, Jian Zheng, Jingyun Ye, Yanran Cui, Katherine Koh, Libor Kovarik, Donald M. Camaioni, John L. Fulton, Donald G. Truhlar, Matthew Neurock, Christopher J. Cramer, Oliver Y. Gutiérrez, Johannes A. Lercher
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-11 (2020)
Molecular interactions with both oxides and metals are essential for heterogenous catalysis, leading to remarkable impacts on activity. Here the authors show that a direct link between Cu and ZrO2 in a metal organic framework is required to hydrogena
Externí odkaz:
https://doaj.org/article/b9cc9b6c73f347d99c9579e5b1e6e42f