12,468 Result(s)
within
English
**hu Zhu
Engineering
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Article
Open AccessA distributed adaptive policy gradient method based on momentum for multi-agent reinforcement learning
Policy Gradient (PG) method is one of the most popular algorithms in Reinforcement Learning (RL). However, distributed adaptive variants of PG are rarely studied in multi-agent. For this reason, this paper pro...
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Experimental investigation on bond performance of UHPFRC wet joint by direct tension test
Ultra-high-performance fiber-reinforced concrete (UHPFRC) is applied to joint nodes with its excellent mechanical properties, which helps to improve the force transfer performance of UHPFRC structures. The str...
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Article
Prediction of servo industry development in China by an optimized reverse Hausdorff fractional discrete grey power model
In order to accurately predict the development of the servo industry in China, this study proposes a Hausdorff fractional reverse accumulated grey power model. Accumulation operation and differential equation ...
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Article
Spacecraft Anti-reconnaissance Game based on Particle Swarm Optimization Algorithm
This paper proposes an optimization strategy using competitive particle swarm algorithm for the anti-reconnaissance problem in the near-range game scenario of spacecraft. Firstly, the constraint analysis is ca...
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Article
New Insights into Digestion Kinetics of Gibbsite in the Bayer Process: High-Pressure DSC
Research on the digestion kinetics of gibbsite in the Bayer process contributes to understanding the reaction mechanism and promoting the reaction process. In this work, the non-isothermal kinetics of synthesi...
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Dynamic modeling considering time-varying contact pairs and parameterized defects of deep groove ball bearings for its vibration characteristic analysis
Bearing vibration characteristic analysis based on dynamic analytical model is of importance for identifying faults of bearing in mechanical systems. However, on one hand, the relationship between the raceway-...
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Article
SoccerNet 2023 challenges results
The SoccerNet 2023 challenges were the third annual video understanding challenges organized by the SoccerNet team. For this third edition, the challenges were composed of seven vision-based tasks split into t...
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Open AccessMultifunctional Film Assembled from N-Doped Carbon Nanofiber with Co–N4–O Single Atoms for Highly Efficient Electromagnetic Energy Attenuation
Asymmetrically coordinated Co–N4–O sites on N-doped carbon nanofiber were prepared.
Co–O coordination along the axial direct...
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Article
Lump solitions, fractal soliton solutions, superposed periodic wave solutions and bright-dark soliton solutions of the generalized (3+1)-dimensional KP equation via BNNM
In this study, the bilinear neural network method (BNNM) is employed for seeking analytical solutions for the generalized (3+1)-dimensional KP equation, which are subtly constructed by both single-layer “4-3-1...
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Article
TDOA and FDOA Hybrid Positioning of Mobile Radiation Source with Receiver Position Errors
High-precision position awareness is essential to ubiquitous wireless networks, which can provide real-time position information and abundant status information for numerous practical applications. However, It...
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Structural design and simulation of PDMS/SiC functionally graded substrates for applications in flexible hybrid electronics
Flexible hybrid electronics possess significant potential for applications in biomedical and wearable devices due to their advantageous properties of good ductility, low mass, and portability. However, they of...
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Locally resonant metamaterial for the regulation of damage-related nonlinearity based on second harmonic generation
A nondestructive testing method based on nonlinear vibration is usually implemented by measuring the intensity of the second harmonic signal. However, such intensity is much lower than that of the fundamental ...
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Article
Open AccessStudy on the preparation and fretting behavior of bonded oriented MoS2 solid lubricant coating
The bonded MoS2 solid lubricant coating is an effective measure to mitigate the fretting wear of AISI 1045 steel. In this work, the amino functionalized MoS2 was protonated with acetic acid to make the MoS2 posit...
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Stress–strain relationship for reactive powder concrete with recycled powder under uniaxial compression
The recycled powder (RP) from construction wastes can be used to partially replace cement in the preparation of reactive powder concrete. In this paper, reactive powder concrete mixtures with RP partially repl...
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Lifelike agility and play in quadrupedal robots using reinforcement learning and generative pre-trained models
Knowledge from animals and humans inspires robotic innovations. Numerous efforts have been made to achieve agile locomotion in quadrupedal robots through classical controllers or reinforcement learning approac...
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A multi-strategy hybrid cuckoo search algorithm with specular reflection based on a population linear decreasing strategy
The cuckoo search algorithm (CS), an algorithm inspired by the nest-parasitic breeding behavior of cuckoos, has proved its own effectiveness as a problem-solving approach in many fields since it was proposed. ...
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Article
On the migrativity properties between uni-nullnorms and overlap (grou**) functions
Based on the concepts of the \(\alpha \) α -migrativity between overlap (grou**) functions...
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Article
Open AccessVertiport navigation requirements and multisensor architecture considerations for urban air mobility
Communication, Navigation and Surveillance (CNS) technologies are key enablers for future safe operation of drones in urban environments. However, the design of navigation technologies for these new applicatio...
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Effect of carbon concentration on melting behavior of steel scraps in hot metal baths
To reveal the intricate mechanisms underlying the melting and dissolution processes of scraps in the iron ladle, the melting characteristics of three carbon steels with different C concentrations at the bath t...
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A novel multi-objective optimized DAG task scheduling strategy for fog computing based on container migration mechanism
In order to solve the complex task scheduling problem of fog computing processing big data in the industrial Internet of Things, a task scheduling strategy based on ant colony algorithm called TSSAC (task sche...
