W. D. Zhu
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View article: Energy harvesting dynamic analysis of a piezoelectric beam under axially moving and spinning motions based on the Green’s functions
Energy harvesting dynamic analysis of a piezoelectric beam under axially moving and spinning motions based on the Green’s functions Open
Beams subjected to axial and spinning motions exhibit complex vibration characteristics that can be utilized for piezoelectric energy harvesting. This study investigates the harvesting performance of an axially compressed piezoelectric bea…
View article: Optimized Venturi-Ejector Adsorption Mechanism for Underwater Inspection Robots: Design, Simulation, and Field Testing
Optimized Venturi-Ejector Adsorption Mechanism for Underwater Inspection Robots: Design, Simulation, and Field Testing Open
Stable adhesion on non-magnetic, steep, and irregular underwater surfaces (e.g., concrete dams with cracks or biofilms) remains a challenge for inspection robots. This study develops a novel adsorption mechanism based on the synergistic op…
View article: Study on the Influence of Different Dropper Models in Pantograph–Catenary System on Dropper Load Simulation
Study on the Influence of Different Dropper Models in Pantograph–Catenary System on Dropper Load Simulation Open
The dropper load directly influences the fatigue mechanism of the high-speed catenary system. A proper dropper model for a pantograph–catenary system can be used to accurately and efficiently investigate this phenomenon. In this work, the …
View article: Qingda granule prevents Ang II-induced cardiac hypertrophy via inhibiting NF-κB signaling pathway
Qingda granule prevents Ang II-induced cardiac hypertrophy via inhibiting NF-κB signaling pathway Open
Background Angiotensin II (Ang II) type 1 receptor (AT1R) signaling pathway is a key component of the renin-angiotensin-aldosterone system (RAAS) that is involved in the development of hypertension. Chronic Ang II overactivation results in…
View article: Optimized Venturi-Ejector Adsorption Mechanism for Underwater Inspection Robots: Design, Simulation, and Field Testing
Optimized Venturi-Ejector Adsorption Mechanism for Underwater Inspection Robots: Design, Simulation, and Field Testing Open
Stable adhesion on non-magnetic, steep, and irregular underwater surfaces (e.g., concrete dams with cracks or biofilms) remains a challenge for inspection robots. This study proposes a Venturi-ejector composite suction cup synergizing a ri…
View article: Modulating Buried Passivation and Aligned Interface toward High‐Performance Perovskite Modules
Modulating Buried Passivation and Aligned Interface toward High‐Performance Perovskite Modules Open
The inferior buried film quality and mismatched energy alignment have significantly limited the efficiency and stability of perovskite solar cells (PSCs), especially for the large area, ambient‐condition fabricated perovskite modules (PSMs…
View article: A Simulation study on the service deformation characteristics of ht300 hydrostatic linear guides considering residual stress distribution at contact surfaces
A Simulation study on the service deformation characteristics of ht300 hydrostatic linear guides considering residual stress distribution at contact surfaces Open
This study simulates the deformation characteristics of HT300 hydraulic linear guides under varying residual stress distributions, focusing on the effects of residual stress and temperature fields on precision and deformation. Using ANSYS,…
View article: Buried Interface Regulation with TbCl3 for Highly-Efficient All-Inorganic Perovskite/Silicon Tandem Solar Cells
Buried Interface Regulation with TbCl3 for Highly-Efficient All-Inorganic Perovskite/Silicon Tandem Solar Cells Open
View article: Reshaping Load-Dependent Mesh Excitation Waveforms of Spur Gears—An Analytical Framework on Tip Relief Modeling and Design
Reshaping Load-Dependent Mesh Excitation Waveforms of Spur Gears—An Analytical Framework on Tip Relief Modeling and Design Open
Tip relief is a critical design feature of modern spur gears, aimed at improving dynamic performance through a typical design strategy involving peak-to-peak minimization of mesh excitations. However, due to the hyperstatic nature of simul…
View article: Analysis of Nonlinear Dynamics of a Gear Transmission System Considering Effects of the Extended Tooth Contact
Analysis of Nonlinear Dynamics of a Gear Transmission System Considering Effects of the Extended Tooth Contact Open
Considering the elasticity of gear solid bodies, the load applied to gear teeth will force theoretically separated gear teeth to get into engaging state in advance. This phenomenon is named as the extended tooth contact (ETC). Effects of t…
View article: Development and Validation of a Novel MiniaturizedHigh-Precision Laser Vibrometer for Vibration and UltrasonicVibration Measurements
Development and Validation of a Novel MiniaturizedHigh-Precision Laser Vibrometer for Vibration and UltrasonicVibration Measurements Open
View article: Domain Knowledge Graph Embedding for Zero-Shot Human-Object Interaction Detection
Domain Knowledge Graph Embedding for Zero-Shot Human-Object Interaction Detection Open
View article: Dynamic Characteristics of Different Pantograph Structures for Heavy-Duty Trucks Considering Road Excitation
Dynamic Characteristics of Different Pantograph Structures for Heavy-Duty Trucks Considering Road Excitation Open
View article: Heterointeraction-Induced Nucleation Promoting Vertical Growth and Suppressing Phase Separation for Efficient Wide-Bandgap Perovskite Solar Cells and Tandem Devices
Heterointeraction-Induced Nucleation Promoting Vertical Growth and Suppressing Phase Separation for Efficient Wide-Bandgap Perovskite Solar Cells and Tandem Devices Open
As a key component of perovskite-based tandem photovoltaic devices, wide-bandgap (WBG) perovskite solar cells (PSCs) have been extensively explored recently. For WBG perovskite with mixed Cs/formamidinium (FA) cations and I/Br anions, it i…
View article: Learning Human-Aware Robot Policies for Adaptive Assistance
Learning Human-Aware Robot Policies for Adaptive Assistance Open
Developing robots that can assist humans efficiently, safely, and adaptively is crucial for real-world applications such as healthcare. While previous work often assumes a centralized system for co-optimizing human-robot interactions, we a…
View article: Beyond Idle Channels: Unlocking Idle Space with Signal Alignment in Massive MIMO Cognitive Radio Networks
Beyond Idle Channels: Unlocking Idle Space with Signal Alignment in Massive MIMO Cognitive Radio Networks Open
Cognitive radio networks (CRNs) have traditionally focused on utilizing idle channels to enhance spectrum efficiency. However, as wireless networks grow denser, channel-centric strategies face increasing limitations. This paper introduces …
View article: Experimental Investigation of Steel-Borne Acoustic Pulses for Fault Pinpointing in Pipe-Type Cable Systems: A Scaled-Down Model Approach
Experimental Investigation of Steel-Borne Acoustic Pulses for Fault Pinpointing in Pipe-Type Cable Systems: A Scaled-Down Model Approach Open
Pipe-type cable systems, including high-pressure fluid-filled (HPFF) and high-pressure gas-filled cables, are widely used for underground high-voltage transmission. These systems consist of insulated conductor cables within steel pipes, fi…
View article: Dynamic Modeling and Vibration Analysis of Large Deployable Mesh Reflectors
Dynamic Modeling and Vibration Analysis of Large Deployable Mesh Reflectors Open
Large deployable mesh reflectors are essential for space applications, providing precise reflecting surfaces for high-gain antennas used in satellite communications, Earth observation, and deep-space missions. During on-orbit missions, act…
View article: Experimental Investigation of Steel-Borne Acoustic Pulses for Fault Pinpointing in Pipe-Type Cable Systems: A Scaled-Down Model Approach
Experimental Investigation of Steel-Borne Acoustic Pulses for Fault Pinpointing in Pipe-Type Cable Systems: A Scaled-Down Model Approach Open
Pipe-type cable systems, including high-pressure fluid-filled (HPFF) and high-pressure gas-filled (HPGF) cables, are widely used for underground high-voltage transmission. These systems consist of insulated conductor cables within steel pi…
View article: Development and Validation of a New Type of Displacement-Based Miniatured Laser Vibrometers
Development and Validation of a New Type of Displacement-Based Miniatured Laser Vibrometers Open
Developing a miniatured laser vibrometer becomes important for many engineering areas, such as experimental and operational modal analyses, model validation, and structural health monitoring. Due to its compact size and light weight, a min…
View article: Finite element modeling and modal testing of a wind turbine lattice tower component with interference pin connections
Finite element modeling and modal testing of a wind turbine lattice tower component with interference pin connections Open
Fatigue failures at fastener holes in structures are undesirable as they can lead to catastrophic mechanical failures. Interference pins create interference fits with joined components to reduce stresses around fastener holes and extend th…
View article: Correction: High-precision all-in-one dual robotic arm strategy in oral implant surgery
Correction: High-precision all-in-one dual robotic arm strategy in oral implant surgery Open
View article: High-precision all-in-one dual robotic arm strategy in oral implant surgery
High-precision all-in-one dual robotic arm strategy in oral implant surgery Open
View article: Schemes of local fitting for damage detection of bars using longitudinal operating deflection shapes measured by 3D laser scanning
Schemes of local fitting for damage detection of bars using longitudinal operating deflection shapes measured by 3D laser scanning Open
View article: Calibration of Static Errors and Compensation of Dynamic Errors for Cable-driven Parallel 3D Printer
Calibration of Static Errors and Compensation of Dynamic Errors for Cable-driven Parallel 3D Printer Open
View article: Hole feature detection for aircraft parts by integrating visual saliency and group decision making
Hole feature detection for aircraft parts by integrating visual saliency and group decision making Open
为了实现复杂环境下航空零件孔特征的高效高精度检测,提出了一种集成视觉显著性和群决策的检测方法。在经典FT显著性检测算法中引入图像增强步骤,并为每个像素赋予以最大显著区域中心为参考的权重,使用改进后的方法对图像进行孔区域分割。设计具有多尺度多结构元素的新型数学形态学边缘检测算法,结合轮廓细化算法对孔区域进行轮廓提取。最后,利用Meanshift算法寻找轮廓点的圆心位置,建立新的基于群决策的圆半径计算模型,获得孔特征的关键几何参数。结果表明:改进的视觉显著性特征检测算法能够生成…
View article: Dynamic Modeling and Vibrations of Large Deployable Mesh Reflectors
Dynamic Modeling and Vibrations of Large Deployable Mesh Reflectors Open
View article: Conjugate Approach-Based Tooth Contact Model of Hypoid Gears and Analysis of Tooth Contact at Different Contact Curvatures
Conjugate Approach-Based Tooth Contact Model of Hypoid Gears and Analysis of Tooth Contact at Different Contact Curvatures Open
View article: Reshaping Load-Dependent Mesh Excitation Waveforms of Spur Gears–An Analytical Framework on Tip Relief Modeling and Design
Reshaping Load-Dependent Mesh Excitation Waveforms of Spur Gears–An Analytical Framework on Tip Relief Modeling and Design Open
View article: Reshaping Load-Dependent Mesh Excitation Waveforms of Spur Gears–An Analytical Framework on Tip Relief Modeling and Design
Reshaping Load-Dependent Mesh Excitation Waveforms of Spur Gears–An Analytical Framework on Tip Relief Modeling and Design Open