28 Result(s)
within
Rong** Wei
Engineering
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Article
Open AccessNano friction behaviour between magnetic materials and copper considering the inter-diffusion effect
Copper, permalloy, cobalt, and silicon are the materials that have been widely utilised in magnetic devices. When the size of interest is down to the nanoscale, the inter-diffusion between certain materials be...
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Article
Physics-informed neural networks for friction-involved nonsmooth dynamics problems
Friction-induced vibration is very common in engineering areas, such as aerospace, high-speed railways, robotics, and human/artificial joints. Analysing the dynamic behaviour of systems containing a multiple-c...
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Article
Nonlinear dynamics and performance evaluation of an asymmetric bistable energy harvester with unilateral piecewise nonlinearity
Due to the snap-through characteristics and broadband response, bistable energy harvesters (BEHs) have attracted significant attention. Previous studies revealed that asymmetry in potentials has an adverse imp...
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Chapter and Conference Paper
Research on Electromagnetic Force Characteristics Based on Asymmetric 120° Pitch Figure-8 Coils in EDS System for Maglev Train
Insufficient suspension force of superconducting electrodynamic suspension (EDS) system at low speed is an important problem in the construction of maglev trains. The structure of the figure-8 ground coil play...
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Article
Machinability study of cryogenic-ultrasonic vibration-assisted milling Inconel 718 alloy
A new machining method, cryogenic-ultrasonic vibration-assisted milling (CUVAM), is proposed to improve the workability of Inconel 718. This study examined the machining mechanism of CUVAM technology at differ...
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Article
Regenerative-Cooling Heat-Transfer Performance of Mg/CO2 Powder Rocket Engines for Mars Missions
Aimed at the problem of thermal protection due to the long-time operation of Mg/CO2 rocket engines under high pressure and heat flux, a regenerative-cooling heat-transfer model is established that considers liqui...
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Article
Study of chip adhesion behavior in titanium alloy dry milling process based on image extraction technology
This paper studied the chip adhesion behavior of titanium alloy Ti–6Al–4 V under different cutting parameters, and the image extraction technology was used to quantify the surface chip adhesion rate. The corre...
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Article
Comprehensive Study on the Cutting Force Modeling and Machinability of High Frequency Electrical Discharge Assisted Milling Process Using a Novel Tool
Previous research had validated the machinability of the new machining method of electrical discharge assisted milling (EDAM). However, the EDAM tool has shortcomings, such as its inability to compensate for t...
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Chapter and Conference Paper
A Review on Main Optimization Method of ALBERT in Natural Language Processing
This paper mainly sorts out the related research and optimization route of the ALBERT [1] model released by Google and introduces the main application scenarios and model combination directions of ALBERT. Experim...
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Chapter and Conference Paper
A Review of Research on Incremental Reinforcement Learning of Dynamic Environment
In this paper, incremental reinforcement learning is a new type of reinforcement learning. IRL is a emerging optimal policy to fuse the new state information into the existing knowledge, which makes the agent ...
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Chapter and Conference Paper
Research on Linear Detection Technology for Massive MIMO in Wireless Communications
Massive multiple-input multiple-out (massive MIMO) transmission technology is a key technology of next-generation mobile communication 5G and one of the leading research topics in the field of wireless communi...
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Chapter and Conference Paper
Research on Design Method of Color Matching in Commanding Cabin Based on Color Perception
This study was aimed at effectively improving the interior comfortability of color ambience inside a command cabin, for which it proposed a color-perception-based command cabin interior color combination schem...
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Chapter and Conference Paper
Braking Energy Harvesting Strategy of High-Speed Maglev System
Compared with traditional transportation means, the high-speed maglev train has incomparable advantages. In high-speed maglev transportation system, speed control is an important part. The speed control is rel...
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Article
Water Disaster Susceptible Areas in Loess Multi-Arch Tunnel Construction under the Lateral Recharge Condition
The water disaster susceptible areas in loess multi-arch tunnels were studied. Taking Lishi multi-arch tunnel as an example, the tunnel is located in Luliang City, Shanxi Province, China, with a total length o...
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Article
Low noise chopper-stabilized instrumentation amplifier with a ripple reduction loop
This paper presents a low noise and residual offset chopper-stabilized precision instrumentation amplifier intended for use in measurement systems. Conventional chopper-stabilized instrumentation amplifier int...
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Article
Region stability analysis for switched nonlinear systems with multiple equilibria
This paper investigates the region stability analysis for switched nonlinear systems whose subsystems have different equilibria, which are referred to multi-equilibrium switched nonlinear systems, and proposes...
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Chapter and Conference Paper
Research on Fast RTK GNSS Algorithm Based on Partial Ambiguity Resolution
The key of GNSS RTK algorithm is the fast and reliable double difference integer ambiguity resolution. Currently widely used algorithm is the LAMBDA method based on the ambiguity search algorithm. But the sear...
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Article
Input/output-to-state stability of switched nonlinear systems with an improved average dwell time approach
This paper investigates the input/output-to-state stable (IOSS) property of the switched systems under average dwell time (ADT) switching signals in two cases: 1) all of the subsystems are IOSS, 2) parts of th...
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Article
Open AccessEnergy-efficient design of two-tier femtocell networks
With the exponential increase in mobile internet traffic, future cellular networks face great challenges to satisfy the demand of network capacity. At the same time, high data rate transmission and rapid incre...
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Article
A Multiple Biomedical Signals Synchronous Acquisition Circuit Based on Over-Sampling and Shaped Signal for the Application of the Ubiquitous Health Care
Researches on the real-time health system have attracted much attention during recent years. The dynamic detection of health information requires the biomedical amplifier with small volume, low power consumpti...
