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Articles by Xiaobin Xu
A KG-DRL framework for post course competition certificate integration and path generation in civil aviation vocational colleges
Abstract The “Post-Course-Competition-Certificate” (PCCC) integration model has emerged as a cornerstone of vocational education reform in China, yet its implementation in civil aviation vocational colleges is hindered by the absence of quantifiable fusion criteria, reliance on subjective evaluation practices, and the lack of adaptive learning pathways tailored to individual student profiles.
Pore water pressure fluctuation in vacuum-preloaded marine soft clay: effects of bound water and particle migration
Abstract Introduction: Soft clay foundations treated by vacuum preloading often exhibit non-monotonic pore water pressure dissipation, which complicates the interpretation of drainage efficiency during ground improvement. This study investigates pore water pressure fluctuation in vacuum-preloaded marine soft clay from Daya Bay, Huizhou City, Guangdong Province.
A rare case of Lung adenocarcinoma complicated with leptomeningeal and brain parenchymal metastasis: case report and review of the literature
Abstract Brain metastasis (BM) represents a severe and common complication of advanced lung cancer, which is clinically categorized into brain parenchymal metastasis (BPM) and leptomeningeal metastasis (LM), with LM being the predominant subtype of meningeal involvement. In clinical practice, the concurrent occurrence of both parenchymal brain and leptomeningeal metastases in a single patient remains rare.
A Precipitation Simulation Method Considering Spatial Decay of Geographical Phenomena and Integrating Terrain Light Propagation
1 Introduction Precipitation is a key component of the terrestrial water cycle. However, its strong spatial heterogeneity introduces considerable uncertainty into the study of terrestrial hydrological processes, particularly in regions with complex topography.
Research on real-time detection of radiotherapy setup errors and intelligent quality control methods based on artificial intelligence and big data
1 Introduction With the advancement of precision radiotherapy, the management of setup errors has become a critical component in ensuring treatment safety and accurate dose delivery. In current clinical practice, image-guided radiotherapy (IGRT) and cone-beam computed tomography (CBCT) are commonly employed for periodic setup corrections.
A Review of 2D Lidar SLAM Research
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An Improved Fault Diagnosis Method for Rolling Bearing Based on Relief-F and Optimized Random Forests Algorithm
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Application of torque observer based on belief rule base to power redistribution process
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Transcriptome Analysis Provides Insights into the Mechanism of the Transcription Factor AaCrz1 Regulating the Infection Structure Formation of Alternaria alternata Induced by Pear Peel Wax Signal
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Vibration Position Detection of Robot Arm Based on Feature Extraction of 3D Lidar
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The 500-meter long-term winter wheat grain protein content dataset for China from multi-source data - Scientific Data
Abstract In China, the exigency for precise wheat grain protein content (GPC) data rises with growing food consumption demands and global market competition. However, due to the lack of extensive, prolonged high-resolution benchmark data, previous GPC studies have primarily focused on experimental fields, small geographic units, and limited temporal scopes. Additionally, the diverse geographical terrain in China exacerbates the challenges of large-scale GPC estimation.
Multi‐step performance degradation prediction method for proton‐exchange membrane fuel cell stack using 1D convolution layer and CatBoost
REFERENCES 1, , , , , . An interpretable data-driven method for degradation prediction of proton exchange membrane fuel cells based on temporal fusion transformer and covariates. Int J Hydrogen Energy. 2023; 48(66): 25958-25971. 2, . Adaptive cooperation control of wind power generation systems based on Hamilton system under limited input. Int J Adapt Control Sign Process. 2023; 37(11): 2895-2914. 3, , .
Tightly Trapped Atom Interferometer inside a Hollow-Core Fiber
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Scene Classification Method Based on Multi-Scale Convolutional Neural Network with Long Short-Term Memory and Whale Optimization Algorithm
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Highly Crystalized MAPbX3 Perovskite Triangular Nanowire Arrays for Optoelectronic Applications
Here, a facile fabrication approach for high-quality 1D perovskite triangular nanowire (TNW) array synthesis through space-confined effect was reported. A soft stamp containing 1D triangular linear array pattern was used to confine the MAPbX3 solution and to guide the growth of the nanowires along the prescribed direction with good crystallinity.
Polarization-maintaining photonic crystal fiber with high Brillouin gain coefficient for Brillouin lasers
Stimulated Brillouin scattering (SBS) is effective for realizing a laser with an ultra-narrow linewidth. Although photonic crystal fiber (PCF) is considered an excellent medium to achieve SBS, it does not meet the requirements of low loss, large birefringence, and ease of fabrication. We propose a polarization-maintaining PCF (PM-PCF) structure and theoretically analyze the effects of the geometric structural parameters of the PM-PCF on various optical properties.
Cargo Terminal Intelligent-Scheduling Strategies Based on Improved Bee Colony Algorithms
This is an early access version, the complete PDF, HTML, and XML versions will be available soon.
Improved spatial-temporal graph convolutional networks for upper limb rehabilitation assessment based on precise posture measurement
1. Introduction Stroke is the second leading cause of death in the world, and its incidence rate is on the rise in recent years (Paul and Candelario-Jalil, 2021). The disability rate of this disease is high, and more than 50% of survivors will leave varying degrees of disability, which seriously affecting the daily life of patients, causing great pain to themselves, and adding a heavy economic burden to families and society.
Frequency-hopping mechanism and control method for nonlinear parity-time-symmetric wireless power transfer systems
1 Introduction As a novel wireless power transfer (WPT) technology, the nonlinear parity-time-symmetric (NPTS) WPT (NPTS-WPT) system was first reported in 2017 in Nature (Assawaworrarit et al., 2017).
A MOOC Course Data Analysis Based on an Improved Metapath2vec Algorithm
This is an early access version, the complete PDF, HTML, and XML versions will be available soon. Open AccessArticle by Congcong Xu 1, Jing Feng 1,*, Xiaomin Hu 2, Xiaobin Xu 1, Yi Li 1 and Pingzhi Hou 1 1 Department of Automation, Hangzhou Dianzi University, Hangzhou 310018, China 2 Department of Science, Hangzhou Dianzi University, Hangzhou 310000, China * Author to whom correspondence should be addressed.
Velocity Increment on Incidence Angle near the Leading Edge of the Compressor Cascade
Abstract : The geometry of a compressor leading edge has an important effect on the aerodynamic performance at an off-designed incidence angle. The current geometric design methods of the leading edge are usually developed based on the flow characteristics at the designed incidence angle. However, few research focuses on the quantitative rules of the leading edge flow characteristics at the off-designed incidence angle in a compressor cascade.
High-Precision Segmentation of Buildings with Small Sample Sizes Based on Transfer Learning and Multi-Scale Fusion
This is an early access version, the complete PDF, HTML, and XML versions will be available soon. Open AccessArticle by 1,2,*,†, 1,2,†, 1,2 and 1,2 1 College of Mechanical and Electrical Engineering, Hohai University, Changzhou 213022, China 2 Jiangsu Key Laboratory of Special Robot Technology, Hohai University, Changzhou 213022, China * Author to whom correspondence should be addressed. † These authors contributed equally to this work. Remote Sens.
Agriculture | Free Full-Text | Evaluating the Canopy Chlorophyll Density of Maize at the Whole Growth Stage Based on Multi-Scale UAV Image Feature Fusion and Machine Learning Methods
Abstract : Maize is one of the main grain reserve crops, which directly affects the food security of the country. It is extremely important to evaluate the growth status of maize in a timely and accurate manner. Canopy Chlorophyll Density (CCD) is closely related to crop health status. A timely and accurate estimation of CCD is helpful for managers to take measures to avoid yield loss. Thus, many methods have been developed to estimate CCD with remote sensing data.
Research on Response Parameters and Classification Identification Method of Concrete Vibration Process
Abstract : The vibration process applied to fresh concrete is an important link in the construction process, but the lack of effective monitoring and evaluation methods results in the quality of the vibration process being difficult to control and, therefore, the structural quality of the resulting concrete structures difficult to guarantee.
MAX-DOAS Measurements of Tropospheric NO2 and HCHO Vertical Profiles at the Longfengshan Regional Background Station in Northeastern China
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Toward the Utilization of 3D Blading in the Cantilevered Stator from Highly Loaded Compressors
1. Introduction The cantilevered stator is signified by its simple structure and low weight and hence is a promising configuration in the high-performance compressor. However, the leakage flow created by the radial gap at the stator root substantially complicates the endwall flow, necessitating a thorough understanding and advanced design techniques. Dean stated in the 1950s that the cantilevered stator could obtain better aerodynamic performance than the shrouded stator [1].
Intelligent Adaptive PID Control for the Shaft Speed of a Marine Electric Propulsion System Based on the Evidential Reasoning Rule
This is an early access version, the complete PDF, HTML, and XML versions will be available soon.
High−Accuracy Film−Integrated Optical Sensor for Real−Time Intraocular Pressure Monitoring
Abstract : Intraocular pressure (IOP) is a key indicator to evaluate the risk and status of glaucoma, which is one of the main causes of irreversible blindness. However, the IOP value is susceptible to circadian changes and is difficult to be measured real−time. In this paper, we designed a thin−film integrated optical IOP sensor based on the interferometry principle, which could read out the IOP value by interference patterns and monitor the value changes real−time at the same time.
Hybrid photonic bandgap effect in twisted hollow-core photonic bandgap fibers
Abstract A hybrid photonic bandgap effect in twisted hollow-core photonic bandgap fibers (HC-PBFs) is theoretically investigated for the first time, to the best of our knowledge. Due to the topological effect, twisting of the fibers changes the effective refractive index and lifts the degeneracy of the photonic bandgap ranges of the cladding layers. This twist-induced hybrid photonic bandgap effect shifts up the center wavelength and narrows the bandwidth of the transmission spectrum.
Tandem Electrochemical Oxidative Azidation/Heterocyclization of Tryptophan‐Containing Peptides under Buffer Conditions
Abstract Manganese-catalyzed late-stage derivatization was used to construct azide-substituted tetrazolo[1,5-a]indole-containing peptides through a radical azidation/heterocyclization cascade. This electrochemical oxidative strategy could be conducted under mild, efficient, and environmentally friendly conditions in buffer solution.
The emulsified feedstock technique derived from micro-explosion has been applied to improve the feedstock atomization of heavy oil during the catalytic cracking process. The strength of an interfacial film, which is vital for the stability of emulsion, can be enhanced by some polymer surfactants. In this study, n-hexadecane was chosen as the model oil.
Inside Front Cover Min Sun, Min Sun School of Materials Science and Engineering, Tongji University, 4800 Cao'an Road, Shanghai, 201804 China Institute for Advanced Study, Tongji University, Shanghai, 200092 China Search for more papers by this author Zhenkai Ji, Zhenkai Ji School of Materials Science and Engineering, Tongji University, 4800 Cao'an Road, Shanghai, 201804 China Institute for Advanced Study, Tongji University, Shanghai, 200092 China Search for more papers by this author Le He,...
Low pKa of Lys promotes glycation at one complementarity-determining region of a bispecific antibody
Abstract Protein glycation is a common, normally innocuous, post-translational modification in therapeutic monoclonal antibodies. However, when glycation occurs on complementarity-determining regions (CDRs) of a therapeutic monoclonal antibody, its biological activities (e.g., potency) may be impacted. Here, we present a comprehensive approach to understanding the mechanism of protein glycation using a bispecific antibody.
A Novel Ship Collision Avoidance Awareness Approach for Cooperating Ships Using Multi-Agent Deep Reinforcement Learning
1. Introduction Under the trend of economic globalization, maritime transportation system plays an important role in the international supply chain [1,2,3,4]. Especially maritime autonomous surface ships (MASS) are considered as a promising area in the maritime transportation system.
Peptide late-stage C(sp3)-H arylation by native asparagine assistance without exogenous directing groups
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Exposure to Metalaxyl Disturbs the Skeletal Development of Zebrafish Embryos
Abstract Metalaxyl is broadly applied in agriculture to control peronosporales-caused diseases in plant. To investigate the toxic effects, zebrafish embryos were exposed to metalaxyl at 5, 50 and 500 ng/L for 72 h, the development of larvae were assessed. A significant decreased survival rate, body length, hatching rate (48 h post-fertilization), and a significant increased spinal curvature rate were observed in the 500 ng/L treatment.
Improved calibration method based on the RANSAC approach and an improved gray centroid method for a laser-line-based structured light system
Abstract This paper proposes an improved calibration method for a structured light system by using the random sample consensus (RANSAC) method with nonlinear optimization and an improved gray centroid method.
Quantitation and modeling of post-translational modifications in a therapeutic monoclonal antibody from single- and multiple-dose monkey pharmacokinetic studies using mass spectrometry
Loading metrics Open Access Peer-reviewed Research Article Xiaobin Xu , Yu Huang, Hao Pan, Rosalynn Molden, Haibo Qiu, Thomas J. Daly, Ning Li Xiaobin Xu, Yu Huang, Hao Pan, Rosalynn Molden, Haibo Qiu, Thomas J.
Metal-Organic Framework Based Microcapsules
MOFs are a type of ideal crystalline material with rigid reticular structures whereas microcapsules are usually prepared from soft mater, such as polymers or supramolecules. The synthesis of MOF‐based microcapsules with novel nanostructures at the molecular scale remains a great challenge. Herein, we develop a competitive coordination strategy to synthesize MOF‐based microcapsules with novel bowl‐like structures.
Metal-Organic Framework Based Microcapsules
MOFs are a type of ideal crystalline material with rigid reticular structures whereas microcapsules are usually prepared from soft mater, such as polymers or supramolecules. The synthesis of MOF‐based microcapsules with novel nanostructures at the molecular scale remains a great challenge. Herein, we develop a competitive coordination strategy to synthesize MOF‐based microcapsules with novel bowl‐like structures.
Nondestructive determination of the core size of a hollow-core photonic bandgap fiber using Fabry–Perot interference
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Superhydrophilic amorphous Co-B-P nanosheet electrocatalysts with Pt-like activity and durability for the hydrogen evolution reaction
Developing durable, nonprecious hydrogen evolution reaction (HER) electrocatalysts with Pt-like performance is desirable but remains challenging. Here we report a one-step electroless synthesis of an amorphous Co B P ternary alloy and its application as a new highly active and robust HER catalyst. The synthesized Co B P nanosheets supported on Ni foam exhibit remarkable catalytic performance in alkaline media, delivering a low onset overpotential of 12 mV and a low Tafel slope of 42.1 mV dec .
Precision-Guided Nanospears for Targeted and High-Throughput Intracellular Gene Delivery
An efficient nonviral platform for high-throughput and subcellular precision targeted intracellular delivery of nucleic acids in cell culture based on magnetic nanospears is reported. These magnetic nanospears are made of Au/Ni/Si (∼5 μm in length with tip diameters 90% and transfection rates >80% were achieved, which exceed conventional nonviral intracellular methods.
Surfactant encapsulated palladium-polyoxometalates: controlled assembly and their application as single-atom catalysts
The challenge with single-atom catalysts (SACs) is in designing a highly definite structure with accurate location of the single atom and high catalytic efficiency. The noble metal substituted polyoxometalates seem to be a kind of SAC because of their well resolved crystal structure. Here, we got two kinds of assembly structures (nanorolls and hollow spindles) based on the palladium substituted Wells–Dawson polyoxometalate (Pd-POM), which consists of isolated Pd atoms.
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