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17 Result(s)
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Yuhao Li
Engineering
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Article
Mechanism of a deterministic sponge figuring processing (SFP) in Ni–P surface formation considering the robustness of the tool influence function: modeling and experimental investigation
The core optics in the deep-space high-energy physics ray detection system are an ultra-precision aspherical surface, which would generate surface errors introduced by the ultra-precision single point diamond ...
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Article
Influence of Wind Speeds and Heating Exposures on the Thermal Insulation of Intumescent Fire-Retardant Coatings
The standard fire resistance test failed to consider the effect of environmental wind on intumescent fire-retardant coatings. This study investigated the thermal insulation of intumescent fire-retardant coatin...
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Article
Mechanism of dual-direction vibration-assisted (DVA) micro-milling in surface formation considering the tool life-lengthening effect on the Ti6Al4V: design and experiment
Micro-milling is extremely paramount to fabricating micro-scaled components, requiring high quality and low setup cost. However, with the low stiffness of micro-milling systems, the uncontrolled finished surfa...
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Article
Open AccessAccelerating evolutionary computation using a convergence point estimated by weighted moving vectors
We introduce weighted moving vectors to increase the accuracy of estimating a convergence point of population and evaluate its efficiency. Key point is to weight moving vectors according to their reliability w...
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Book
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Chapter
Z-Source Inverter and Control
As the oldest impedance source inverters, Z-source inverter is one of the typical topologies, whose analytical and control methods can be transplanted to other impedance source inverters. Besides, since the im...
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Chapter
Dual-Winding Impedance Source Inverters
The coupled inductors Z-source inverters (CISIs) can be divided into dual-winding impedance source inverters and three-winding impedance source inverters in general, where the dual-winding impedance source inv...
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Chapter and Conference Paper
Fault Detection of Club Fitness Equipment Based on Image Processing Technology
The safe operation of machinery and equipment is not only closely related to People’s Daily life, but also has an important impact on the economic activities of the whole society. Therefore, the detection and ...
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Chapter
Developments of Impedance Source Inverters
The developments of impedance source inverters are presented in this chapter, where improvements such as boost ability enhancement and parameter optimization are presented based on which many popular and pract...
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Chapter
Technology of DC-Link Voltage Spikes Suppression
The introduction of coupled inductor renders the appearance of leakage inductance whatever cores or winding techniques are employed, which induces operating problems. For instance, when the coupled inductors i...
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Chapter
Reliability Research on Impedance Source Inverters
Advances in power electronics enable efficient and flexible processing of electric power in the application of renewable energy sources, electric vehicles, adjustable-speed drives, etc. More and more efforts a...
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Chapter
Research Status and Development
Significant developments on highly performance, highly reliable and highly efficient power electrical inverters are underway for renewable energy and other industrial occasions. This chapter introduces the bac...
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Chapter
Three-Winding Impedance Source Inverter
The coupled inductors Z-source inverters (CISIs) can be divided into dual-winding impedance source inverters and three-winding impedance source inverters in general, where the three-winding impedance source in...
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Chapter
Impedance Source Inverters Analysis
Traditional way of applying ampere-second and voltage-second balances has commonly been adopted for calculating state variables of a converter. However, it becomes tedious and error prone when used with compli...
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Chapter
Application of Impedance Source Inverters
Impedance source inverters have attracted considerable attention in power decoupling, photovoltaic/wind power generation, and motor drive in recent years, because they can obtain high step-up boost ratio in a ...
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Article
Microstructure and mechanical properties of friction stitch welds of DH36 steel in local dry conditions
Friction stitch welding is a promising underwater solid-phase joining technology, and research on the process is important in both theory and engineering. Friction stitch welded joints obtained in underwater e...
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Article
Design of a real-time adaptive NURBS interpolator with axis acceleration limit
With recent advances in high-speed and high-accuracy machining, the NURBS interpolator has shown significant effect on dealing with the free-form curves and surfaces. The existing study aims at develo** the ...
