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Engineering
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Article
GBDT4CTRVis: visual analytics of gradient boosting decision tree for advertisement click-through rate prediction
Gradient boosting decision tree (GBDT) is a mainstream model for advertisement click-through rate (CTR) prediction. Since the complex working mechanism of GBDT, advertising analysts often fail to analyze the d...
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Article
Open AccessDistributed order estimation for continuous-time stochastic systems
In this paper, we investigate the distributed estimation problem of continuous-time stochastic dynamic systems over sensor networks when both the system order and parameters are unknown. We propose a local inf...
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Modification of Expansive Soil Characteristics by Employing Agro-waste Eggshell Powder: An Experimental Study
Expansive soils show significant volume changes associated with water content, so as to pose a substantial challenge for civil engineering projects. In order to enhance the mechanical load-bearing characterist...
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3D morphological analysis of Fe-based metallic glass surfaces via laser powder bed fusion using a digital microscope
Surface microscopic characterization of additive manufacturing samples is necessary because of unavoidable defects in the as-printed components. However, the samples are inevitably damaged during characterizat...
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PCSAGAN: a physics-constrained generative network based on self-attention for high-fidelity flow field reconstruction
We propose a physics-constrained generative adversarial network, PCSAGAN, based on the self-attention mechanism for high-fidelity flow field reconstruction, which can generate high-resolution and high-precisio...
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Factors Influencing the Dynamic Shear Modulus and Dam** Ratio of Granulated Rubber–Clay Mixtures in **ong’an New Area
In this study, the dynamic properties of a mixture of granulated rubber and locally sourced **ong’an clay are investigated, to promote the beneficial use of rubber–clay mixture (RCM) as a seismic isolation mat...
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Long-Term Durability Prediction of Slag–Fly Ash-Blended Engineered Cementitious Composite Subjected to Chloride and Sulfate Salt
Slag and fly ash are two of the most common mineral admixtures that can be utilized effectively in the production of engineered cementitious composites (ECC). However, because of the delay in the hydration rea...
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BHPVAS: visual analysis system for pruning attention heads in BERT model
In the field of deep learning, pre-trained BERT models have achieved remarkable success. However, the accompanying problem is that models with more complex structures and more network parameters. The huge para...
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TSSeer: a visual analytics approach for exploring the correlation between teachers’ multimodal emotions and students’ behaviors in massive open online courses
Massive open online courses (MOOCs) have become a popular platform owing to their open nature. However, the shortage of emotional interaction in MOOCs can cause a high attrition rate among learners. Appropriat...
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Article
Propagation Characteristics of Stress Waves and Failure Modes of Gray Sandstone with a Gypsum-Filled Joint Under Impact Load
To investigate the effects of the impact velocity and joint dip angle on stress wave propagation and fracture evolution of rock masses, dynamic impact experiments of the gray sandstone samples with gypsum-fill...
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Experimental Study on CRTS III Ballastless Track Based on Quasi-distributed Fiber Bragg Grating Monitoring
In order to investigate the damage process caused by the seismic pseudo-static load, quasi-distributed fiber bragg grating (FBG) sensors were placed in CRTS III ballastless track specimens. Low-cyclic reversed...
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SFLVis: visual analysis of software fault localization
Since the birth of software, fault localization has been a time-consuming and laborious task. Programmers need to constantly find faults in software through program logging, assertions, breakpoints, and profil...
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Article
Effects of Particle Breakage on the Mechanical Behavior of Calcareous Sand Under Confined Compression Tests
Particle breakage plays a pivotal role in sha** the deformation behavior of granular soils when subjected to compression. To comprehensively assess the influence of particle breakage on the evolution of part...
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Article
Open AccessSelf-supervised multi-object tracking based on metric learning
The current paradigm of joint detection and tracking still requires a large amount of instance-level trajectory annotation, which incurs high annotation costs. Moreover, treating embedding training as a classi...
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Article
Oxidation of Cu-Pb-As Ternary Alloys at 960–1080°C with Various Oxygen Partial Pressures and the Distribution Behavior of Arsenic
The Cu-Pb-As ternary system is a fundamental subsystem in metallurgy, and the oxidation behavior of its components elements is an important issue in alloy preparation, particularly with copper/lead systems. To...
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Correction to: Numerical control machining step error calculation based on hybrid particle swarm optimization method
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Article
Nacre-inspired MXene-based film for highly sensitive piezoresistive sensing over a broad sensing range
作为可穿戴电子设备的重要组成部分，柔性压力传感器因其在健康监测、电子皮肤和人机交互等领域中广阔的应用前景而备受关注。然而，在较宽的压力范围内实现传感器的高灵敏性，同时具备快速的响应/恢复时间和与皮肤无缝贴合，仍然是一个重大挑战。在本文中，我们提出使用真空诱导自组装策略制备具有“砖-砂浆”内部结构的珍珠层状MXene/羧甲基纤维素钠（CMC）纳米复合传感膜。柔性CMC“砂浆”的嵌入有效缓解了MXene导电纳米片的层间...
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Article
Experimental Investigation of Composite Formation Flying Using Disturbance-Free Payloads
Precise formation control is increasingly demanded in high-resolution remote sensing formations, gravitational detection interferometers and distributed space telescopes. One composite formation flying method ...
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Article
Event-triggered Quantized Stabilization for Uncertain Neutral Systems
This paper investigates the event-triggered quantized stabilization of uncertain neutral systems. Specifically, based on the suitable Lyapunov functional and relax quadratic function negative determination pro...
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Extended State Observer Based Generalized Predictive Control for Aircraft at High Angle of Attack
This paper presents a linear compound control strategy for nonlinear aircraft system at high angle of attack. Firstly, extended state observers are designed to overcome model dependence by estimating and compe...
