As societal demands on traffic control increase, traditional model-based traffic control methods are showing their limitations. This paper introduces a Distributed Adaptive Coordination control (DACC) algorithm, which...
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The elastic scattering features of the underwater target scattering wave depend on the physical parameters of the target, such as the material and structure. Intuitively evaluating the influence of the elastic scatter...
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The effect of a rotating magnetic field(RMF)on the distribution of Al_(2)O_(3)particles with an Al melt was studied by means of simulation and *** results show that Al_(2)O_(3)particles(diameter of 1-10μm,1wt.%)are s...
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The effect of a rotating magnetic field(RMF)on the distribution of Al_(2)O_(3)particles with an Al melt was studied by means of simulation and *** results show that Al_(2)O_(3)particles(diameter of 1-10μm,1wt.%)are significantly agglomerated at the top of ingots when subjected to an RMF,and their distribution is influenced by both the intensity and the duration of RMF *** optimal separation efficiency is achieved with the magnetic intensity of 12 mT for 120 *** number of the particles at the bottom and the middle decreases by 64.5%and 69.7%,respectively,while that at the top increases by 242.5%compared to the condition without an ***,if further increase the intensity or the duration of RMF,it can induce turbulent flows that draw some of the separated Al_(2)O_(3)particles back into the melt,reducing separation *** calculation results show that as the magnetic intensity increases from 6 mT to 18 mT,the velocity difference between the particles and the Al melt flow quadruples,increasing from 0.013 m·s^(-1)to 0.066 m·s^(-1).Driven by this velocity difference,centrifugal motion,and secondary circulation,Al_(2)O_(3)particles tend to migrate upwards within the melt,facilitating the separation of impurity particles and enhancing the purity of the melt.
Environmental photocatalysis is a promising technology for treating antibiotics in *** this study,a supercritical carbonization method was developed to synthesize a single-atom photocatalyst with a high loading of Ni(...
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Environmental photocatalysis is a promising technology for treating antibiotics in *** this study,a supercritical carbonization method was developed to synthesize a single-atom photocatalyst with a high loading of Ni(above 5 wt.%)anchored on a carbonnitrogen-silicate substrate for the efficient photodegradation of a ubiquitous environmental contaminant of tetracycline(TC).The photocatalyst was prepared from an easily obtained metal-biopolymer-inorganic supramolecular hydrogel,followed by supercritical drying and carbonization *** low-temperature(300℃)supercritical ethanol treatment prevents the excessive structural degradation of hydrogel and greatly reduces the metal clustering and aggregation,which contributed to the high Ni *** characterizations confirmed that Ni was present at isolated sites and stabilized by Ni-N and Ni-O bonds in a Ni-(N/O)_(6)-C/SiC configuration.A 5%Ni-C-Si catalyst,which performed the best among the studied catalysts,exhibited a wide visible light response with a narrow bandgap of 1.45 eV that could efficiently and repeatedly catalyze the oxidation of TC with a conversion rate of almost 100% within 40 *** reactive species trapping experiments and electron spin resonance(ESR)tests demonstrated that the h+,and·O_(2)-were mainly responsible for TC *** TC degradation mechanism and possible reaction pathways were provided ***,this study proposed a novel strategy to synthesize a high metal loading singleatom photocatalyst that can efficiently remove TC with high concentrations,and this strategy might be extended for synthesis of other carbon-based single-atom catalysts with valuable properties.
At present, deep learning has achieved great success in the field of object detection. To ensure that positive samples in the image are not missed, most deep-learning object detection methods set many prediction boxes...
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This paper presents an autonomous task planning method for multiple collecting robots on improved genetic algorithm. Considering the limited capacity of collecting robots and the suitability of hopping robots in the m...
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This paper discusses the distributed event-triggered time-varying formation (TVF) problem for high-order multiagent systems (MASs) with multiplicative noise on the undirected graph. Based on relative state measurement...
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This paper investigates the fault estimation (FE) problem for a class of switched linear systems with actuator faults and external disturbances. The restricted switching is to satisfy the average dwell time (ADT) cons...
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Dear Editor, This letter investigates the prescribed-time stabilization of linear singularly perturbed systems. Due to the numerical issues caused by the small perturbation parameter, the off-the-shelf control design ...
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Dear Editor, This letter investigates the prescribed-time stabilization of linear singularly perturbed systems. Due to the numerical issues caused by the small perturbation parameter, the off-the-shelf control design techniques for the prescribed-time stabilization of regular linear systems are typically not suitable here. To solve the problem, the decoupling transformation techniques for time-varying singularly perturbed systems are combined with linear time-varying high gain feedback design techniques.
This article proposes an intelligent frequency agile design strategy for radar network using coalition game theory to counter wideband sweep jamming, which is formulated as a two-stage decision-making problem. In the ...
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