Results 41 to 50 of about 19,230 (306)
Multi-Agent Reinforcement Learning-Based Intelligent Game Guidance with Complex Constraint
AerospaceFor the complex problems of multi-aircraft cooperative game guidance with No-Fly Zone (NFZ) avoidance and cross-task constraint propagation, a deep deterministic policy gradient algorithm with temporal awareness and priority cooperative optimization (TP ...
Fucong Liu +4 more
doaj +1 more source
Using cooperative coevolution in large-scale black-box constraint satisfaction problems [PDF]
ITM Web of ConferencesSolving constrained large-scale global optimization problems poses a challenging task. In these problems with constraints, when the number of variables is measured in the thousands, when the constraints are presented in the form of a black box, and ...
Vakhnin Aleksei, Novikov Zakhar
doaj +1 more source
IEEE Access, 2018 The secure communication of a two-way untrusted amplify-and-forward relay network under the imperfect channel state information is investigated. To improve the secrecy of the relay wiretap system, artificial noise is introduced into each source signal ...
Lihua Gong +3 more
doaj +1 more source
FEBS Letters, EarlyView.We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee +3 more
wiley +1 more source
Cooperative Multi-Missile Guidance Research Considering Communication Topology Switching [PDF]
Hangkong bingqiA time-space cooperative guidance law based on switching strategy is proposed for the multi-missile cooperative strike problem under switching topology. The distributed guidance law is designed for the time constraint in combination with the consistency ...
Zhang Shiqiang, Li Qunsheng, He Jingang
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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
wiley +1 more source
Admission Control Threshold in Cellular Relay Networks with Power Adjustment
EURASIP Journal on Wireless Communications and Networking, 2009 In the cellular network with relays, the mobile station can benefit from both coverage extension and capacity enhancement. However, the operation complexity increases as the number of relays grows up. Furthermore, in the cellular network with cooperative
Lee Ki-Dong, Yi ByungK
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Improved Sparse Channel Estimation for Cooperative Communication Systems
International Journal of Antennas and Propagation, 2012 Accurate channel state information (CSI) is necessary at receiver for coherent detection in amplify-and-forward (AF) cooperative communication systems. To estimate the channel, traditional methods, that is, least squares (LS) and least absolute shrinkage
Guan Gui, Wei Peng, Ling Wang
doaj +1 more source
Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment
Molecular Oncology, EarlyView.This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley +1 more source
Study on cooperative constraint zoning of water environment
Water Science and Technology, 2022 Abstract This study comprehensively considers two elements of water environmental sensitivity and pressure using the combination of qualitative analysis and quantitative calculation. And it puts forward the water environmental collaborative constraint zoning method and focuses on the construction of the water environmental collaborative ...
Lanxin, Liu +3 more
openaire +2 more sources