This paper studies a geometric attitude tracking control problem of quadrotor unmanned aerial vehicles (UAVs) with adaptive extended state observers (AESOs). Through coordinate transformation, the error dynamic of AES...
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We present a method for optimal phase control of limit-cycle oscillators using strong inputs. Based on the phase-amplitude reduction, which provides a concise representation of the oscillator dynamics, we design an op...
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In stochastic dynamic environments, multi-agent Markov decision processes have emerged as a versatile paradigm for studying sequential decision-making problems of fully cooperative multi-agent systems. However, the op...
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In the absence of any observation system or low veracity of the data, it is possible to provide control over a limited time interval basing on a high-precision control object model used. The paper proposes to use a mu...
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The microeconomic description of the investment policy of a firm in a market-type economic system is presented. Firms differ from each other by the moment of creation and are limited liability companies. At the moment...
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3D reconstruction and 2D observation were conducted to characterize the microstructure of the castings produced through high pressure die casting with different *** results indicate that shrinkage pores generally co-e...
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3D reconstruction and 2D observation were conducted to characterize the microstructure of the castings produced through high pressure die casting with different *** results indicate that shrinkage pores generally co-existed with externally solidified crystals(ESCs).In specimen produced without fast slow shot speed,big net-shrinkage pores accompanied with ESCs were found in the center of the *** the casting pressurization was introduced,the shrinkage pores gathered to the specimen center and became much less due to the optimization of melt *** more porosity was found near the gate rather than in the middle of the rod bar,especially gas ***filling process simulation reveals that the middle position of the bars wasfirstlyfilled and followed by the near gate position accompanied with one intense turbulentflow.
Compared with traditional hydrodesulfurization,new nonhydrodesulfurization methods have the advantage of a high removal efficiency for thiophene compounds under mild ***,independent nonhydrodesulfurization technologie...
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Compared with traditional hydrodesulfurization,new nonhydrodesulfurization methods have the advantage of a high removal efficiency for thiophene compounds under mild ***,independent nonhydrodesulfurization technologies are faced with their own shortcomings,such as limitations of the desulfurization performance and regeneration of *** overcome these limitations,four nanofluids were prepared by dispersing different metal-modified MCM-41 particles in deep eutectic solvent as multifunctional promoters to develop a comprehensive desulfurization *** on the excellent adsorbability and high catalytic activity of the dispersed particles and the outstanding extractability of deep eutectic solvent in nanofluids,a high sulfur removal of 99.33%was achieved for model oil under mild conditions in 15 *** nanofluids also showed excellent reusability due to their high structural *** addition,NF@Cu/Al-MCM-41-2.5%exhibited the best desulfurization performance among the prepared *** result was obtained because the introduction of Al ions increased the number of acid sites and defect sites to improve the catalytic activity and adsorbability,and the best affinity of Cu/Al-MCM-41 for the deep eutectic solvent favored the reaction mass *** work opens the door to the development of a comprehensive nonhydrodesulfurization method based on the design of nanofluid materials.
The paper presents for the first time a methodology for solving supervised learning problems, such as classification and regression, based on deep Gaussian mixture models (DGMMs). We use a self-supervised approach to ...
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To apply a solution of the optimal control problem directly to the control object for which model this problem was solved, it is necessary to build a system of motion stabilization along the obtained optimal trajector...
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A state-constrained optimal control problem is considered in which the starting position is fixed and the terminal position is free. The endpoints are strictly included within the set shaped by the given state constra...
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