Foam dust suppressant based on synergistic coordination between oxidized starch-gelatin Schiff base reaction and multiple crosslinking.

Aiming at the problems such as large dust in each production process of open-pit mines, insufficient water resistance of the curing layer of dust control materials, and poor mechanical strength, this research applied the network generated by Schiff base reaction between oxidized starch (OS) and gelatin (GEL) as the basis, and combined with polyvinyl alcohol (PVA) and calcium chloride (CaCl). This material improves the problem of poor dust suppression effect caused by the environment of open-pit coal mines. It was found that the large number of amino groups contained in GEL attack the carbon atoms in the carbonyl group of OS to form carbon-nitrogen double bonds, generating Schiff bases as the crosslinking network, which enhanced the water resistance of the polymers.

Atomically Asymmetrical Ruthenium-Oxygen-Cobalt Sites Accelerate Oxygen Redox and Suppress Side Reactions for Stable Lithium-Oxygen Batteries.

Development of aprotic lithium-oxygen (Li-O) batteries suffers from slow cathode reaction kinetics, numerous side reactions, and large polarization, which are intimately related to the discharge product of LiO. Here, we designed and prepared a modified CoO nanoparticle with atomic Ru substitution at octahedral Co sites supported by carbon nanocages (RuCoO@HCNs) as a cathode catalyst. The asymmetrical octahedral Ru-O-Co units trigger a strong electron coupling effect, leading to charge redistribution and optimization of the d-orbital energy levels, thus facilitating oxygen activation and conversion into superoxide anions during discharging.

A Data-Driven Mathematical Model for Clonorchiasis with Seasonality.

Clonorchiasis is a foodborne disease caused by parasites and transmitted to humans through intermediate hosts. Clonorchis sinensis parasitizes in the bile ducts of human liver and causes organ lesions. The cercariae and metacercaria of Clonorchis sinensis have seasonal variations and may be affected by high water temperature in summer.

Impact of chemical oxygen demand-to-sulfate ratio changes on spatial heterogeneity evolution of microbial communities in cathode biofilms and sulfate reduction performance of microbial electrolysis cells.

Microbial electrolysis cells (MEC) supply electrons to sulfate-reducing bacteria (SRB) within cathode biofilms, however, these SRB exhibit heterogeneous spatial distributions due to varying competitiveness for electron utilization, which ultimately impacts sulfate removal efficiency. This study investigates the underlying mechanisms driving the evolution of this spatial heterogeneity within cathode biofilms and its subsequent influence on sulfate reduction performance by modulating the chemical oxygen demand-to-sulfate (C/S) ratio. When the C/S ratio decreased from 5 to 3, the sulfate removal rate increased by nearly 10 %.

RICNET: Retinex-Inspired Illumination Curve Estimation for Low-Light Enhancement in Industrial Welding Scenes.

Feature tracking is essential for welding crawler robots' trajectory planning. As welding often occurs in dark environments like pipelines or ship hulls, the system requires low-light image capture for laser tracking. However, such images typically have poor brightness and contrast, degrading both weld seam feature extraction and trajectory anomaly detection accuracy.

A Review on the Application of Biosensors for Monitoring Emerging Contaminants in the Water Environment.

Due to the frequent occurrence and elevated concentrations of emerging contaminants (ECs) in water environments, as well as their high toxicity, these compounds have become a growing concern, threatening water safety, human health, and environmental health. Stricter regulations and routine monitoring are required to control EC pollution in water. Analytical chemistry-based techniques are the most widely used approach for quantifying ECs in environmental samples.

Research on Trajectory Tracking Control Method for Wheeled Robots Based on Seabed Soft Slopes on GPSO-MPC.

With advances in underwater exploration and intelligent ocean technologies, wheeled underwater mobile robots are increasingly used for seabed surveying, engineering, and environmental monitoring. However, complex terrains centered on seabed soft slopes-characterized by wheel slippage due to soil deformability and force imbalance arising from slope variations-pose challenges to the accuracy and robustness of trajectory tracking control systems. Model predictive control (MPC), known for predictive optimization and constraint handling, is commonly used in such tasks.

Experimental Study on Grouting Seepage Characteristics in Rough Single Microfissure Under Triaxial Stress States.

The increasing depth of coal mine construction has led to complex geological conditions involving high ground stress and elevated groundwater levels, presenting new challenges for water-sealing technologies in rock microfissure grouting. This study investigates ultrafine cement grouting in microfissures through systematic analysis of slurry properties and grouting simulations. Through systematic analysis of ultrafine cement grout performance across water-cement (W/C) ratios, this study establishes optimal injectable mix proportions.

CAAFE-ResNet: A ResNet With Channel Attention-Augmented Feature Extraction for Prognostic Assessment in Rectal Cancer.

Magnetic resonance imaging (MRI) has a pivotal role in both pretreatment staging and post-treatment evaluation of rectal cancer. This study presents an innovative deep learning model, CAAFE-ResNet18*, based on the residual neural network ResNet18*. The model features an ingeniously designed feature extraction and complementation module (i.

Study on multivariate salt phase equilibrium relationship of high-salt wastewater under the influence of organic impurities in evaporation process.

The small amount of organic impurities in the pre-treated saline wastewater will affect the original solubility of the saline wastewater, which is one of the key issues that restrict the evaporation of saline wastewater with near-zero discharge under the working condition. We have investigated the solid-liquid phase equilibrium relationship under typical organic impurities in falling film evaporation tubes with different parameters. Results show the phase diagram of Na, Mg//Cl-HO in the presence of organic impurities belongs to the phase diagram of a simple system.

Laser irradiation-triggered self-organization of defect-rich MoS nanospheres for ultrasensitive SERS detection of antibiotic levofloxacin molecules.

Ultrasensitive and accurate quantitative determination of trace antibiotics remains a formidable challenge, given its crucial significance for early screening of public health and safety. Notably, surface-enhanced Raman spectroscopy (SERS) has been developed into a rapid, non-invasive and sensitive technique for detecting trace amounts of antibiotics in the environment. Herein, defect-rich ultraclean MoS nanospheres are successfully designed for the first time through self-organization from common two-dimensional molybdenum disulfide (2D MoS) multilayers by one-step green laser-manufactured method.

Study on the water stability and safety mechanism of warm mixed recycled SBS modified asphalt mixture.

The warm-mix recycled asphalt mixture (RAM), which integrates the warm-mix technique with recycling technology, offers significant energy savings and promotes the effective use of waste materials, delivering both environmental and economic benefits. Therefore, this study selected Evotherm surface-active additive to investigate its impact on the properties of recycled asphalt binder and its corresponding mixture, compared and analyzed the differences between road properties of hot-mix RAM and warm-mix RAM, focusing on the water stability of warm-mix RAM and the safety mechanism of warm-mix additive. The results revealed that while Evotherm did not significantly alter the penetration, softening point, or ductility of recycled SBSMA, it enhanced the surface energy and aggregate adhesion.

Synthesis of an Sp-Carbon-Rich Carbonaceous Material Exhibiting Distinctive Anode Performance.

Among carbon allotropes, carbyne, composed solely of sp-hybridized carbon atoms, has garnered significant interest due to its potential unique physical and chemical properties. Nevertheless, the synthesis of carbyne or its analogs remains a persistent challenge, hindering further exploration in this area. Herein, a straightforward synthesis method is proposed to prepare TMS-capped sp-carbon hybridized carbonaceous material (TMS-C).

Solving the coupled Gerdjikov-Ivanov equation via Riemann-Hilbert approach on the half line.

In this research, the Fokas method is adopted to examine the coupled Gerdjikov-Ivanov equation within the half line interval [Formula: see text]. Meanwhile, the Riemann-Hilbert technique is engaged to work out the potential function associated with the equation. We initially partition the matrix into segments and identify the jump matrix linking each segment based on the positive feature of the segment.

DEM simulation study on the mechanical and micro-fracture characteristics of jointed coal under direct tensile conditions.

Rock burst events are frequently accompanied by the formation of extensive tensile cracks, with bedding plane dip angles fundamentally determining the tensile strength characteristics, crack propagation, and failure modes of coal measures. This study investigates the influence of bedding plane angles on the tensile mechanical behavior of coal rocks using PFC2D numerical simulations. Models with four distinct bedding angles (0°, 30°, 60°, 90°) were developed to analyze failure mechanisms under tensile loading.

Optimizing spore germination and unveiling impermeability mechanisms in microbial self-healing concrete.

This study investigated the impact of key factors on spore germination of , a self-healing bacterium for concrete, and elucidated its impermeability mechanism to provide theoretical and practical guidance for advanced self-healing concrete development. Controlled experiments determined optimal germination conditions: 2 g/L microcapsule concentration, pH 8, and 1 g/L inosine, yielding peak germination efficiency that highlights parameter synergies. Thermal stimulation for 3 minutes effectively triggered germination, presenting a practical activation approach.

Synergy of nanoclusters/single atoms regulates sustainable oxidation pathways for self-motivated Fenton-like processes.

Synergy mechanism of nanoclusters/single atoms as coexisting electron-rich centers for sustainable Fenton-like catalysis without oxidant addition remains unclear. In this study, a composite catalyst consisting of FeP nanoclusters coexisting with Fe single atoms (FeP/FeNP/C) was synthesized and utilized in two catalytic systems: one with zero-peroxymonosulfate (PMS) addition and the other with low-PMS addition. Results indicated that FeP/FeNP/C catalyst with electron-deficient region could adsorb pollutants via π-π bond and extract electrons from pollutants to the atomic FeNP/C as electron acceptor, and this self-motivated process in PMS-free system could be modulated by the FeP nanoclusters via dynamic synergistic effects.

Identification and preparation of debromination products of DBDPE photodegradation by HPLC-APPI-MS coupled to semi-preparative liquid chromatography.

Decabromodiphenyl ethane (DBDPE) is widely used as an additive flame retardant and has led to global pollution. Its has a large molecular mass and is prone to debromination and degradation under photothermal conditions, resulting in smaller homologous compounds. Due to the lack of standard substances for debromination products, the in-depth study of DBDPE environmental geochemical behavior through debromination conversion has been hindered.

Seasonal dynamics of the carbonate system and acidification sensitivity in a river-dominated coastal system: the Northern Yellow Sea, China.

This study investigated the carbonate dynamics in the northern coastal zone of the Northern Yellow Sea adjacent to the Yalu River estuary during two distinct hydrological periods in 2024. During the dry season, seawater dissolved inorganic carbon (DIC) ranged narrowly from 1862 μmol kg to 2141 μmol kg, while pH ranged from 7.70 to 8.

Spirulina regulates plastic degradation process in Zophobas atratus larvae: Gut microbiota, molecular responses, and plastic digestion.

Plastic degradation by insects often causes oxidative stress-induced intestinal damage, which harmed the intestinal function to limit plastic degradation. Herein, we investigated the potential of spirulina supplementation to alleviate intestinal damage and affect polystyrene degradation in Zophobas atratus larvae. Compared to wheat bran, spirulina supplementation more effectively reduced polystyrene-intake induced intestinal tissue degradation and epithelial shedding.

Skin-Inspired Composite Tactile Sensor with Equivalent Gradient Modulus for Grip Monitoring.

Tactile sensing devices with skin-like perception capabilities are a prerequisite for the application of industrial robots in intelligent manufacturing. However, current tactile pressure sensors face challenges in simultaneously quantifying both static pressure and dynamic sliding stimuli with high accuracy, which hinders robotic arms from maintaining stable gripping operations. In this paper, a flexible composite tactile sensor with equivalent gradient modulus (EGM) is proposed.

Experimental study on mechanical properties and microstructure of cement-based expansion grouting materials for broken coal mass.

As the excavation depth of the tunnel increases, the stress on the surrounding rock increases, and the tunnel becomes fragmented, especially in coal tunnels, which require grouting reinforcement. Conventional materials are inadequate for the grouting and reinforcing demands of this type of surrounding rock; therefore, it is essential to create grouting materials with specific expansion properties. First, the orthogonal test method was employed to optimize the expansion grouting materials ratio.

Harnessing Multiple Adsorption Sites in a Phosphonate Metal-Organic Framework for Efficient CH/Co Separation.

Due to their comparable molecular dimensions and volatility, distinguishing CH from CO during purification remains a significant challenge in industrial applications. Achieving effective isolation of CH from binary mixtures of CH/CO is therefore a critical objective in petrochemical processes. Herein, an adsorption mechanism enabling selective CH/CO separation has been elucidated in the phosphonate metal-organic framework (MOF) Ni-STA-12.

Unveiling microbial mechanisms for fluoride and nutrient removal in iron-carbon constructed wetlands under micro-oxygen regulation.

The co-occurrence of fluoride (F⁻) and nutrient pollutants in wastewater poses a significant challenge for treatment processes due to their distinct physicochemical behaviors. Constructed wetlands (CWs), as ecologically adaptive systems, offer nature-based solutions for the integrated attenuation of multifaceted contaminant mixtures. This study evaluated five types of CWs with varying substrates under micro-oxygen regulation, focusing on iron-carbon (Fe-C) micro-electrolysis for enhanced removal and the microbial response of F⁻, nitrogen (N), and phosphorus (P) under continuous flow conditions.

Bacterial K-strategists playing pivotal roles in degrading alkanes, upholding system stability and regulating microbial diversity in natural attenuation of petroleum hydrocarbon polluted sediment of Laizhou Bay.

Natural attenuation represents a pivotal process in the management of oil spills within marine ecosystems, one of which is to monitor bioprocess that is inseparable from microbial action. However, the behaviors of microorganism with different survival strategies under petroleum contamination remain largely unexplored in gulf environments. Herein, ecological and evolutionary characteristics of K- and r-strategist were comprehensively investigated in diesel-polluted sediment from Laizhou Bay via molecular sequencing and physicochemical experiments.