Publications from 2021 to 2026
Filter Showing 10 of 97 papers
Building 3D “point-plane” thermal conduction networks with in-situ fabricated graphitic carbon nitride@nanodiamond heterostructures for highly thermally conductive epoxy composites
Hybrid Steel Fiber Design in Ultra-High-Performance Concrete Containing Coarse Aggregate Using Pore Size Distribution Within Coarse Aggregate Skeleton.
To address the challenge of coarse aggregates hindering steel fiber dispersion and reducing toughening efficiency in ultra-high-performance concrete containing coarse aggregate (UHPC-CA), this study proposes a hybrid fiber design method based on reverse adaptation to the aggregate structure: a paradigm where fiber proportions are inversely designed to match the quantified void size distribution within the coarse aggregate skeleton. Industrial X-ray computed tomography (X-CT) was employed to capture the internal structure of UHPC-CA. Digital image processing techniques were used to quantitatively characterize the size distribution within the coarse aggregate skeleton gap. Based on this distribution, the blending proportions of multi-scale (3-16 mm) copper-plated steel fibers were systematically determined. Three fiber configurations were compared: mono-sized 13 mm fibers (Type A), an empirical model based on aggregate size (Type B), and a quantitatively designed blend based on skeleton gap distribution (Type C). At the same fiber volume fraction, the mechanical property test results show that the C type achieves approximately 18.6% higher flexural strength and 29.1% higher splitting tensile strength compared to the A type, while showing 5.3% and 6.7% improvements over the B type, and the compressive strength also increased slightly (about 3.0%). The microanalysis further confirms that the fiber distribution in the C-type design was more uniform, and the bridging effect and crack resistance were more sufficient. The proposed gap-adaptive fiber design paradigm offers an effective approach for optimizing reinforcement distribution in composites, providing theoretical and practical value for high-performance UHPC-CA applications.
Read moreFemtosecond laser fabrication of sub-spot-scale porous metallic surfaces
Genomic and polyphasic characterization of Halomonas salsilacus sp. nov., moderately halophilic bacterium isolated from saline lake sediment.
Effect of annealing temperature on microstructure and mechanical property of Ti-0.3Mo-0.8Ni-0.01Y alloy
Mechanistic insights into the dislocation-grain boundary interaction and geometric dilution effect in high-oxygen Grade 4 titanium during cold rolling
Noise-aware boundary refinement for nested named entity recognition with selective self-attention
3Arachidonic acid enhances gray mold resistance in postharvest tomato via modulating phenylpropanoid biosynthesis, plant-pathogen interaction, and MAPK signaling pathway
Attention-based two-level architecture for electric vehicle battery capacity prediction with condition standardization
Optical applications, fluctuation analysis and solutions in tool presetters
This paper takes the German KELCH V345 series tool presetter as the research object, and deeply discusses the application principles, measurement fluctuation problems, and solutions of its optical system. Through experiments, the influence of environmental factors such as temperature, humidity, and vibration on optical measurement accuracy is analyzed, a calibration cycle model based on error accumulation is established, and optimized environmental adaptability strategies are proposed. The research shows that the CMOS camera and LED lighting system of V345 have a precision fluctuation of ±0.003mm in the industrial environment, which can be controlled within ±0.001mm through dynamic calibration and environmental compensation. This research provides practical references for the stable application of optical engineering and sensing instruments in precision manufacturing.
Read more
Copyright 2026 Cactus Communications. All rights reserved.
