Results 81 to 90 of about 739,183 (268)
Ain Shams Engineering JournalThe synchronous reference frame phase-locked loop (SRF-PLL) is widely adopted in grid-connected converters (GCCs); however, its inherent dq-frame coupling may induce undesired frequency coupling and stability degradation, especially under grid impedance ...
Yifan Zhao, Dan Liu, Ping Xiong, Yu Sun
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Avian Conservation and Ecology, 2007 Conservation of biodiversity is now a firmly entrenched objective of sustainable forest management, and emulating natural disturbance has been widely adopted as a conservation strategy. Yet the foundation for this approach is still very much a hypothesis
Robert S. Rempel
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THE CONFIGURATION OF STENDOMYCIDINE
The Journal of Antibiotics, 1970 The absolute configuration of stendomycidine (I), a constituent of the peptide antibiotic stendomycin, was determined. Optical rotatory dispersion (ORD) measurements showed the configuration at the α-carbon atom to be that of an L-amino acid. Degradation of stendomycidine with N-bromosuccinimide yielded 2-methylimino-3-methyl-hexahydropyrimidine-4 ...
G G, Marconi, M, Bodanszky
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Calpain small subunit homodimerization is robust and calcium‐independent
FEBS Letters, EarlyView.Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy +4 more
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A novel trajectories optimizing method for dynamic soaring based on deep reinforcement learning
Defence TechnologyDynamic soaring, inspired by the wind-riding flight of birds such as albatrosses, is a biomimetic technique which leverages wind fields to enhance the endurance of unmanned aerial vehicles (UAVs).
Wanyong Zou +4 more
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Risk Management and Healthcare Policy, 2021 Zhiguang Li,1 Wanying Zhang,1 Aijie Kong,1 Zhiyuan Ding,1 Hua Wei,1 Yige Guo2 1School of Economics and Management, Anhui University of Chinese Medicine, Hefei, Anhui, People’s Republic of China; 2King’s Business School, King’s College ...
Li Z +5 more
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Structural insights into an engineered feruloyl esterase with improved MHET degrading properties
FEBS Letters, EarlyView.A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa +5 more
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Measurement Model and Precision Analysis of Accelerometers for Maglev Vibration Isolation Platforms
Sensors, 2015 High precision measurement of acceleration levels is required to allow active control for vibration isolation platforms. It is necessary to propose an accelerometer configuration measurement model that yields such a high measuring precision.
Qianqian Wu +6 more
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Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system
FEBS Letters, EarlyView.Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
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FEBS Letters, EarlyView.Biomolecular condensates formed by fused in sarcoma (FUS) are dissolved by high ATP concentrations yet persist in cells. Using a reconstituted system, we demonstrate that valosin‐containing protein (VCP), an AAA+ ATPase, counteracts ATP‐driven dissolution of FUS condensates through its D2 ATPase activity.
Hitomi Kimura +2 more
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