Connective tissues are biological composites comprising of collagen fibrils embedded in (and reinforcing) the hydrated proteoglycan-rich (PG) gel within extracellular matrices (ECMs). Age-related changes to mechanical properties often associated with structure ECM, namely, fibril diameter. However, quantitative attempts correlate diameter have yielded inconclusive evidence. Here, we described a novel approach that was based on rule mixtures for fiber evaluate dependence age-related tendon...

This study builds on the practice of using waste rubber to improve ductility cement mortar and further explores potential vinyl acetate-ethylene (VAE) in enhancing (RM). It systematically analyzes effects VAE workability, mechanical properties, crack resistance, microstructure RM. Additionally, isothermal calorimetry was employed investigate mechanism VAE's influence hydration heat. The results show that significantly improves flexural strength, tensile ultimate strain RM, while reducing its...

Zeta potential testing, Fourier infrared spectroscopy, and total organic carbon analysis were employed in this manuscript to explore the flocculation mechanism of polyacrylamide (PAM) on slurry with a high content polycarboxylate ether (PCE). Through combination assessments chemical bond shifts, adsorption indicators, intrinsic viscosity high-molecular-weight polymer systems, microscale mechanisms different PAM dosages cement suspensions elucidated, showcasing stages...

Abstract High-temperature brazing and laser cladding methods can form a good metallurgical bond between ceramics copper cladding. Herein, through these two methods, the preparation of Cu-based metal layer on surface aluminum nitride (AlN) was carried out. Scanning electron microscopy, X-ray diffraction, energy-dispersive spectroscopy, other characterization techniques were employed to observe macroscopic microscopic morphologies, elemental distribution, microstructure characteristics...

In this article, the rheological and thixotropic properties of fresh cement pastes (fcps) with nonionic polyacrylamide (PAM) are investigated through coaxial rotary method. The B-HB model is resorted to fit shear stress versus rate diagram, from which slurry plastic viscosity particularly discussed. results show that development PAM, increases first, then decreases, again, exhibiting “up-down-up” trend, consistent fcps fluidity. adsorption, lubrication, entanglement mechanisms PAM...

Abstract In the era of sixth generation mobile networks (6G), industrial big data is rapidly generated due to increasing data‐driven applications in Industrial Internet Things (IIoT). Effectively processing such data, for example, knowledge learning, on resource‐limited IIoT devices becomes a challenge. To this end, we introduce cloud‐edge‐end collaboration architecture, which computing, communication, and storage resources are flexibly coordinated alleviate issue resource constraints....

The dynamic mechanical properties of concrete materials are important parameters for evaluating the safety performance structures under loads. Fiber cement‐based have been widely used in construction projects due to their strength, toughening, and cracking resistance. In this study, we conducted experimental theoretical studies on compression tensile different proportions new‐type fiber concrete. A Split‐Hopkinson pressure bar equipment was determine behavior at strain rates. effects rate...

Aiming at the deficiency of low efficiency and accuracy traditional or single clustering algorithm in user behavior analysis substation area, an improved dynamic weighted density combined with k-means (DWDC-k-means) quadratic was proposed. Firstly, based on aggregation degree sum squared errors (SSE), construct initial return indicator select optimal k value. Then, is used to centers. Finally, fusion similarity feature Euclidean distance differential Pearson correlation second stage. The...

Abstract Through phase analysis and quantitative calculations of the hydration process, inclusion polyacrylamide (PAM) in Anti-dispersion Water Paste affects its characteristics is discovered. Specifically, presence PAM reduces early reactivity while accelerating progress middle to late stages hydration. By employing K-D kinetic analysis, it confirmed that use results formation a multi-nucleation homogeneous point system within cement slurry. This prolongs NG (nucleation growth) process...

This study developed three composite slurries for coating recycled aggregate by incorporating polyacrylate emulsion, fly ash, and gypsum into a cement-based mixture. The filling pozzolanic effects of ash help to improve microcracks in the aggregates. emulsion forms strong bonding layer between cement matrix aggregates, enhancing interfacial bond strength. Based on relevant studies, following mix designs were developed: Slurry 1 consists pure paste; 2 contains 15% 3% added 3 adds 22% slurry....

This study conducts quantitative analysis of the degree mortar carbonation under influence a multi-dimensional interaction. The HABT method is used to determine and compared with TGA method. result shows that determination only 3.86% higher than suitable for determining carbonation. analyzes factors such as water-reducing agents on carbonation, demonstrates relationship between pore structure explores corner areas general edges. It found time prolongs, depth will no longer show linear...

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Night lighting is closely related to social and economic development. Inversion of socioeconomic parameters using nighttime light (NTL) remote sensing data a research hot spot currently. In this paper, calibration method based on adaptive clustering algorithm for the Suomi National Polar-orbiting Partnership Visible Infrared Imaging Radiometer Suite (NPP-VIIRS) NTL was proposed remove background noise in original imagery. The validity evaluated through comparing correlation between corrected...

Compared with the river sand, manufactured sand’s particle type and gradation is relatively poor surface mat .The sand also has a big effect on workability of concrete. In this paper,the Equivalent powder paste’s volume concrete was determined according to Mehta Aitcin’s ideas for preparation HPC,at same time,the equivalent paste assumed as cement in experiment. The influence polypropylene fiber Manufactured concrete’s Compressive strength were researched case fixed .

In view of the fact that operation data metering equipment in power system has strong nonlinearity and immediacy, traditional methods cannot effectively model, predict analyze. This paper proposes an improved local weighted partial least squares algorithm (K-MLWPLS) based on K-means clustering. The method first uses clustering to divide training set into k sub-training sets; then locally combined with Two-scale similarity measure model sets, grid search Cross-validation adjusts parameters...