6,298 Result(s)
within
**an Qi
Engineering
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Article
Research on vibration suppression of nonlinear energy sink with linear dam** and geometrically nonlinear dam**
Nonlinear energy sink (NES) is a passive control device that can absorb a wide band, and it has the advantages of lightweight and strong robustness, which can play a very important role in vibration suppressio...
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Study on Acoustic Emission and Crack Propagation Characteristics of Single-Fissured Sandstone with Different Angles Under Uniaxial Compression
The uniaxial compression tests are conducted on single-fissured sandstone with different angles, and the effect of fissure angle (β) on mechanical properties, acoustic emission (AE) features, crack propagation ch...
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Article
YOLO-VSF: An Improved YOLO Model by Incorporating Attention Mechanism for Object Detection in Traffic Scenes
Intelligent transportation and autonomous driving systems have made urgent demands on the techniques with high performance on object detection in traffic scenes. This paper proposes an improved object detectio...
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Article
Active torsional vibration suppression for integrated electric drive system considering nonlinear factors
The problem of torque ripple of the motor and nonlinear excitation in the gear transmission system can exacerbate the torsional vibration of the integrated electric drive system, leading to a decrease for the ...
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Effect of electrochemical hydrogen charging in corrosion medium on microstructural evolution and mechanical behavior of an as-forged Ti–6Al–4V (in wt.%) alloy
Combined with the hydrogen pre-charging and tensile testing methods, the effect of charged hydrogen content on the microstructure and mechanical behavior of an as-forged Ti–6Al–4V alloy was investigated. After...
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Fault-tolerant consensus of nonlinear multi-agent systems with channel noises under multiple faults and denial-of-service attacks
This paper focuses on the fault-tolerant consensus problem for a class of nonlinear multi-agent systems subject to channel noises and actuator/sensor faults in the presence of the denial-of-service (DoS) attac...
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Open AccessDifferential characteristics of lithological assemblages and gas-bearing of the Permian Longtan Formation mudstone in well L3, southeastern Sichuan Basin
As the main reservoir of coalbed gas in southeastern Sichuan, the mudstone of the Permian Longtan Formation has been drilled to obtain industrial gas, but the level of exploration and development is low. The r...
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Article
Mirror Turing Test: soul test based on poetry
With the rapid development of machine intelligence, an increasing number of websites and servers have been amicably visited or sometimes attached by intelligent machines intensively. Therefore, how to empower ...
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Article
A new MCDM integrating fuzzy rough set and TOPSIS method
In this paper, by integrating the advantages of multi-granulation fuzzy rough set (MGFRS) and variable precision fuzzy rough set (VPFRS), we introduce a new model of multi-granulation granular variable precisi...
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Article
Levee Safety Monitoring: Algorithm for Feature Recognition in Point Clouds of Levee Landslides
Seepage failure of levees can cause landslides and other hazards. Three-dimensional (3D) laser-scanning technology has become a new method for collecting levee hazard data. In this study, the 3D characteristic...
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Article
Open AccessOptimal time reuse strategy-based dynamic multi-AGV path planning method
The window strategy, known for its flexibility and efficiency, is extensively used in dynamic path planning. To further enhance the performance of the Automated Guided Vehicles (AGVs) sorting system, the two p...
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Article
Undersampling based on generalized learning vector quantization and natural nearest neighbors for imbalanced data
Imbalanced datasets can adversely affect classifier performance. Conventional undersampling approaches may lead to the loss of essential information, while oversampling techniques could introduce noise. To add...
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Article
A Hamiltonian-based Method for PMSM in Electric Vehicle Considering Iron Loss and Saturation
The robust control problem of permanent magnet synchronous motor (PMSM) is discussed in this paper. Both iron loss and voltage saturation are considered in the analysis process in order to close to the actual ...
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Article
Development of a low-frequency vibration–assisted turning device for nickel-based alloys
As a typical and difficult-to-machine material that is widely used in aerospace and aviation fields, the high-quality and efficient machining of nickel-based alloys has long been relevant to advances in mechan...
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Article
Refactoring business process models with process fragments substitution
Since business processes are important assets of enterprises, thousands of business processes are modeled. After modeling business process models, a problem arises here is how to improve the efficiency of thes...
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Article
Integrability, bilinearization, Bäcklund transformations and solutions for a generalized variable-coefficient Gardner equation with an external-force term in a fluid or plasma
A generalized variable-coefficient Gardner equation with an external-force term is investigated which can model the propagation and interaction of some nonlinear waves in a fluid or plasma. Via the Hirota bili...
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Article
Multi-objective Optimization Strategy for Continuous Drilling Parameters of Superalloys
There are a large number of holes to be machined on aeroengine components such as blisks, casings, etc. In order to ensure position accuracy, these holes usually need to be drilled continuously in one process....
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Article
Research on drilling performance and tool life improvement methods of titanium alloy ultra-high-speed drilling bits
Titanium alloy materials have been increasingly applied in the field of 3C products. Manufacturers in the production process of 3C products relentlessly pursue high production efficiency, resulting in extremel...
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Article
Fault Tolerant Control for Open Winding Brushless DC Motor with Power Device Failure
Brushless DC motors are widely used in electric drive equipment. But the neutral port in conventional BLDCM windings could lead to torque ripples and low reliability. Each phase winding of the open winding BLD...
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Study on grinding process and surface defects of SiCp/Al with 20 % volume fraction
This experiment was designed to study the surface defects of 20 % volume fraction SiCp/Al composites after grinding and to provide the necessary experimental results for optimizing grinding parameters. Based o...
