67 Result(s)
within
Wei Fan
Engineering
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Article
A Real-time Positioning Model for UAV’s Patrolling Images Based on Airborne LiDAR Point Cloud Fusion
The precise positioning issue of oblique aerial image has been widely studied in recent years. However, there are still some deficiencies in applying the existing methods to highly time-sensitive engineering. ...
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Article
Image encryption based on a fractional-order hyperchaotic system and fast row-column-level joint permutation and diffusion
Integer-order hyperchaotic image encryption has demonstrated significant potential in ensuring image security. Recent research suggests fractional-order hyperchaotic systems typically exhibit superior chaotic ...
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Article
Open AccessThermally Conductive and UV-EMI Shielding Electronic Textiles for Unrestricted and Multifaceted Health Monitoring
Ag nanoparticles are evenly plated on BN-embedded fibers as a thermally conductive sheath, bridging the insulating interface between fibers to construct a 3D heat transfer net...
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Chapter and Conference Paper
Quality Assurance Discussion of Batch-Manufactured LEO Constellation System Satellites
Constructing production line and promoting the batch manufacturing of satellites and their complementary products is an inevitable choice for the construction of a low-orbit constellation system. The core of b...
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Chapter and Conference Paper
Control and Active and Safety Path Planning of Land-Air Amphibious Unmanned Platform
With the rapid development of unmanned aerial and ground vehicle technology, human beings are no longer satisfied with their single function of flying in the air or traveling on the ground. The use of more fle...
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Article
Nonlinear Dynamics of an All-Movable Rudder System with Freeplay Nonlinearity
The freeplay nonlinearity will reduce the supporting stiffness of the rudder system, affect the accuracy of the position control and reduce its response speed. These set obstacles to modal parameters identific...
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Article
Open AccessMXene Enhanced 3D Needled Waste Denim Felt for High-Performance Flexible Supercapacitors
An ultralight and flexible supercapacitor is developed by an effective 3D fabrication method that uses MXene to fabricate waste denim felt through needling and carbonization.
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Article
Value of CT examination combined with serum tumor markers assisted with artificial intelligence diagnostic system in the diagnosis of benign and malignant pulmonary nodules
The objective is to explore the value of artificial intelligence (AI) diagnostic system-assisted CT examination combined with serum tumor markers in the diagnosis of benign and malignant pulmonary nodules. 150...
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Article
A new type of low-stress flexible hinge displacement amplifying mechanism
A new type of low-stress flexible hinge displacement is designed to effectively improve the load capacity of flexible hinge position transfer large mechanisms and voltage ceramic output displacement. The princ...
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Article
Open AccessAutomatic and continuous blood pressure monitoring via an optical-fiber-sensor-assisted smartwatch
Automatic and continuous blood pressure monitoring is important for preventing cardiovascular diseases such as hypertension. The evaluation of medication effects and the diagnosis of clinical hypertension can ...
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Article
Intelligent layout optimization of reconfigurable flexible fixture for assembling multiple aircraft panels
The traditional assembly of aircraft panels mainly adopts special welding fixtures, which cannot meet the needs of timely production and delivery of diversified products. To address this problem, this paper de...
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Article
Comparison of Nitrogen Gas and Thermal-Insulation Liquid to Control the Temperature–Pressure Effect in Deep Gas Well
Thermal-insulated liquid and nitrogen gas are two common methods to control the trapped annular pressure caused by the temperature–pressure effect, but few researches analyzed the control performance of these ...
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Article
SpanMTL: a span-based multi-table labeling for aspect-oriented fine-grained opinion extraction
Aspect-oriented Fine-grained Opinion Extraction (AFOE) aims to extract the aspect terms, corresponding opinion terms and sentiment polarity in a target sentence. Most previous methods treat AFOE as word-level ...
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Article
Dynamic response of precast segmental bridge columns under heavy truck impact
Considering the wide application of precast segmental bridge columns (PSBCs) in engineering practice, impact-resistant performance has gained significant attention. However, few studies have focused on PSBCs s...
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Article
Open Access3D Printed Integrated Gradient-Conductive MXene/CNT/Polyimide Aerogel Frames for Electromagnetic Interference Shielding with Ultra-Low Reflection
The MXene/CNT/Polyimide aerogel frame with integrated gradient-conductive structure was constructed by MXene/CNT/poly(amic acid) composite inks with different CNT contents via ...
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Article
Open AccessEffects of carbonation on mechanical properties of CAC-GGBFS blended strain hardening cementitious composites
Calcium aluminate cement (CAC)—based strain hardening cementitious composites (SHCC) has been developed and used for the rehabilitation of sewerage pipelines. In addition to well-known microbiologically induce...
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Chapter and Conference Paper
Analysis of Wellbore Paraffin Deposit and Study on Paraffin Removal Technology of Condensate Oil in NL Oilfield
The problem of wax deposition in oil wells has always been a major problem in the operation of NL oil fields, Based on the analysis of crude oil and wax scale composition, wax precipitation point and wellbore ...
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Chapter and Conference Paper
Study on Disturbing Moment Compensation for the Satellite with Large-Scale Rotating Antennas
In this paper, a method of interference feedforward compensation is proposed for the disturbance of satellites with large rotating antenna such as relay satellites with Large-scale Rotating Antennas. This meth...
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Chapter and Conference Paper
Variation Characteristics in BS Area Reservoir of ML Oilfield
The BS area of the ML oilfield is located in the ancient Gansu-Shaanxi River. Its main oil layer is braided fluvial sandstone of Jurassic Y10 oil layer followed by Y9. In 1998, the production was built in a ro...
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Chapter and Conference Paper
Effects of Changqing Crude Oil Fractions on the Interfacial Tension of Betaine Surfactant Solution
In order to study the influence of each component in Changqing crude oil on the interfacial tension of surfactant solution, the crude oil fractions were obtained by four-fraction separation method and NaOH/eth...
