Carbon Supports Regulated the Performances of Copper Catalysts for H Production through Microwave-Initiated Methanol Steam Reforming.

To tackle the storage challenges for distributed hydrogen applications, the microwave-initiated methanol steam reforming (MSR) process was deployed to increase the flexibility and energy efficiency of the MSR hydrogen production. As the key, a series of carbon-supported CuZn catalysts were systematically investigated to reveal the impacts of dielectric properties, conductivity, and dispersion on the catalytic performance under microwave irradiation. In addition to the excellent dielectric properties and conductivity exhibited by the carbon supports, the efficient dispersion of active species will dominate the catalytic activity, which was evidenced by the fact that the graphite supported CuZnG-40 is less active than the carbon nanotube supported and well dispersed CuZnCNTs-10, even with CuZnG-40 presenting superior conductivity and dielectric properties.

The Mo-14Re alloy, a promising candidate material for bioresorbable vascular scaffolds.

Zinc‑, iron‑, and magnesium‑based biodegradable metals suffer inherent limitations as bioresorbable scaffold materials, including inappropriate degradation rates and insufficient mechanical strength. Pure molybdenum (Mo) has been proposed as an alternative, but its clinical application is hampered by brittleness and potential nephrotoxicity. A Mo alloy was engineered to address these challenges.

Research and design experience of a 1 million tons/year CO capture project in the Shengli oilfield of Qilu petrochemical.

This study presents a comprehensive overview of a pioneering 1 million-ton carbon capture, utilization, and storage (CCUS) project implemented in the Qilu Petrochemical Shengli Oilfield in China. The project involved a compression-condensation-purification process and aimed to capture CO from the coal gas of the second chemical fertiliser plant of the Qilu Petrochemical Company. Molecular sieves were used to dry the captured CO, and MellapakPlus™ structured packing was employed for purification.

Advances of self-assembly behaviors in polymer systems for improved oil recovery (IOR) in unconventional reservoirs.

Traditional polymer systems including polymer and polymer gels face efficiency limitations in harsh unconventional reservoirs (low-permeability, high-temperature, high-salinity, serious-heterogenous, etc.) due to insufficient bulk/interfacial self-assembly capability. In recent decades, several self-assembly strengthening methods have been introduced into polymer systems to endow them bespoke functionalities and responsiveness suitable for different conditions.

Generation and Annihilation of Local Magnetic Moments by an Electric Field.

Electric field control of magnetism is highly desirable for designing next-generation spintronic devices. However, the switching effect of local magnetic moments using an external electric field has rarely been demonstrated. Here, we discover a unique magnetoelectric coupling mechanism that is independent of spin-orbit coupling and enables the electric field control of local magnetic moments via a switchable breathing mode.

Synergistic Mechanisms in Fenton-like Reactions: Coal Gasification Fine Slag-loaded Fe-Al LDH Catalysts for Phenolic Wastewater degradation.

Coal gasification fine slag (CGFS), a typical coal-based solid waste, poses significant environmental challenges with an annual output exceeding 50 million tons in China. The complex distribution of carbon and ash components necessitates the development of a material that can effectively harness both carbon and ash for comprehensive utilization. While layered double hydroxides (LDHs) exhibit catalytic potential, their performance is often limited by severe particle aggregation.

N-methylpyrrolidone-based electrolyte modulated CF bond weakening and Interface optimization synergistically enhances Li/CF batteries energy density.

Lithium/fluorinated carbon (Li/CF) batteries have garnered substantial interest from researchers due to their superior energy density and low self-discharge characteristics. However, the strong covalent CF bond in the CF cathode limits its discharge kinetics, affecting the actual power density and operating voltage. In this work, N-methylpyrrolidone (NMP) with high donor number has proposed as the main solvent of the electrolyte to facilitate the breaking of the CF bond through a bimolecular nucleophilic substitution (S2) reaction.

Prediction of breast cancer HER2 status changes based on ultrasound radiomics attention network.

Background And Objective: Following Neoadjuvant Chemotherapy (NAC), there exists a probability of changes occurring in the Human Epidermal Growth Factor Receptor 2 (HER2) status. If these changes are not promptly addressed, it could hinder the timely adjustment of treatment plans, thereby affecting the optimal management of breast cancer. Consequently, the accurate prediction of HER2 status changes holds significant clinical value, underscoring the need for a model capable of precisely forecasting these alterations.

Three-dimensional distribution and key drivers of neonicotinoid residues in hilly agricultural areas.

Neonicotinoids (NNIs) raise global concern due to their substantial soil residues and potential health risks to animal and human health. High water solubility and low soil adsorption enhanced vertical and horizontal migration of NNIs. However, understanding of NNIs' three-dimensional distribution in soils and influencing factors remains limited, limiting accurate risk assessment and remediation strategies for agriculture ecosystems.

Spatiotemporal dynamics of leachate transport in compacted clay liners: Coupled effects of dynamic slip and microbial succession mediated by multiphase interfaces.

Landfill leachates containing hazardous heavy metals (e.g., Pb, Cd), persistent organic pollutants, and antibiotic residues pose severe contamination risks to groundwater and soil ecosystems.

Measurement of in-plane thermal diffusivity of thin film using a regression methodology based on Bayesian optimization algorithm.

Lock-in thermography is widely used in determining the thermal properties of films by extracting the amplitude and phase of thermal waves. However, achieving high phase detection accuracy typically requires sophisticated infrared (IR) cameras. In this work, we present a regression methodology based on Bayesian optimization to determine the in-plane thermal diffusivity of thin films.

Dynamic Confinement and High-Entropy Catalytic Synergy Engineering in Hollow Nano-Metal-Organic Frameworks.

The systematic regulation of the pore size and chemical environment of nano-metal-organic skeletons (n-MOFs) has been challenged, making it difficult to study their structure-property relationships in depth. In this study, a universal dynamic template strategy is proposed and successfully achieves the controllable construction of various hollow n-MOFs (including ZIF-67, Co-BTC, etc.).

Ultrasonic strategies for mitigating microbial adhesion and biofilm formation on medical surfaces: a mini review.

Biofilm formation on medical surfaces poses significant challenges, leading to compromised device functionality and an increased risk of infections. Addressing this issue requires effective strategies that balance efficacy with safety. This mini-review examines the application of ultrasound as a promising approach for biofilm control in medical contexts.

Characteristics, source apportionment, and health risk assessment of pollution of heavy metals in plant foliar dust: characterization of atmospheric heavy metal pollution.

Plant foliar dust can be utilized as a passive sampler to characterize atmospheric heavy metal pollution level of a region. In this study, foliar dust samples were collected from the central urban area of Suqian, a key region for atmospheric pollution control in the Yangtze River Delta, China. The pollution characteristics, sources, and health risks of heavy metals were analyzed.

Study on statistical analysis and prevention of coal and gas outburst accidents in Guizhou Province.

The accidents of coal and gas outburst happening from 2013 to 2024 in Guizhou Province have been counted in accordance with the occurrence year, accident grade, accident location and occurrence month in this paper. The average number of the accidents and the dead persons are 1.75 and 14.

Multiscale investigation of thermally activated coal gangue aggregate concrete interfacial transition zone evolution and failure mechanisms.

The large‑scale accumulation of coal gangue poses serious environmental and land‑use challenges, yet its direct use as concrete aggregate has been hindered by low reactivity, high porosity, and weak interfacial bonding. Although prior studies have examined thermal activation of coal gangue, the interplay among calcination temperature, pore‑size evolution, and mesoscale failure mechanisms in a unified multi‑scale framework remains underexplored. This study presents a multi‑scale experimental and numerical investigation of thermally activated coal gangue aggregate concrete, focusing on ITZ evolution and failure mechanisms.

Progressive damage mechanism of rock-anchoring interface under cyclic impact loading.

Cyclic impacts induce progressive fatigue damage at the rock-anchoring interface, thereby compromising the stability of deep roadway support systems. In this study, the split Hopkinson pressure bar and low-field nuclear magnetic resonance techniques were employed to investigate the macro- and micro-scale damage evolution mechanisms of the anchoring interface under varying conditions, including rock type, anchorage angle, and impact air pressure. The results demonstrate that with increasing impact air pressure, both the dynamic compressive strength and average strain rate at the anchoring interface increase.

Advancing models of bubble-particle contact times: A comprehensive review of flotation attachment efficiency prediction.

Bubble-particle attachment is a fundamental process in flotation, critical for determining separation efficiency, based on surface hydrophobicity and many other aspects of colloid and surface chemistry. This review examines and refines models of contact time - encompassing collision, sliding, and attachment interactions - to quantify attachment efficiency in flotation systems. It begins by exploring the underlying colloidal physics of bubble-particle collision and sliding interactions during attachment, emphasising the velocity components of particles at bubble surfaces, including water flow and particle settling.

Study on Distribution Characteristics of Plastic Zone and Stress Field of Coal with Different Ranks by Liquid Nitrogen Phase Change Expansion Fracturing.

Based on the low-temperature impact effect of liquid nitrogen, liquid nitrogen phase change expansion fracturing (LN-PCEF) leverages the high phase change expansion rate of liquid nitrogen to generate a pressure of 43.3 MPa in sealed boreholes, extending primary fractures and demonstrating significant potential for enhancing coal seam permeability. Due to the immaturity of this technology and limited field application experience, this study employs FLAC3D numerical simulations to investigate LN-PCEF effects on coals with varying ranks, aiming to provide theoretical guidance for future engineering practices.

Evaluation of Grouting Reinforcement Effectiveness in Coal Seam Floors Using the Monte Carlo Analytical Hierarchy Process: A Case Study of the Rongkang Coal Mine.

Pregrouting reinforcement of the coal seam floor is an effective measure for preventing floor water hazards. However, how to objectively evaluate the grouting effectiveness using data from drilling and grouting construction processes remains an urgent issue that needs to be addressed. Based on the coal seam floor grouting project at the Rongkang Coal Mine in Shanxi Province, this study developed a comprehensive evaluation index system for assessing the effectiveness of coal seam floor grouting, consisting of six evaluation indicators.

Investigation of the mechanism and application of pressure relief roadway in preventing rock burst.

As a novel method of preventing rock burst, pressure relief roadway has been proposed in recent years. A longwall face of a coal mine in China was taken as the engineering research background to analyze the anti-shock mechanism and comprehensive prevention technology of relief roadway. Firstly, this paper analyzes the anti-impact mechanism before and after the layout of pressure relief roadway through theoretical and numerical methods.

Deformation mechanism of surrounding rock in weakly cemented thick coal seam roadways and research on graded anchor composite support technology.

In western mining areas, roadways excavated in weakly cemented thick coal seams often experience significant deformation and support failure due to poor roof conditions, low cementation strength, and stress redistribution. Taking the 11,703 transportation roadway of the Dananhu No. 7 Coal Mine in Xinjiang as a case study, this paper investigates the deformation mechanisms of the surrounding rock and proposes an optimized support technology.

Incorporating graph representation and mutual attention mechanism for MiRNA-MRNA interaction prediction.

Introduction: Predicting interactions between microRNAs (miRNAs) and messenger RNAs (mRNAs) is crucial for understanding gene expression regulation mechanisms and their roles in diseases. Existing prediction methods face significant limitations in simultaneously handling RNA sequence complexity and graph structural information.

Methods: We propose GRMMI, a framework that effectively leverages both sequence and node features by combining FastText-pretrained sequence embeddings with GraRep graph embeddings to capture semantic and topological information.

Systemic and dynamic risk analysis of drilling construction based on bayesian network and system dynamics model.

Drilling construction is a key means to obtain underground resources and information, and construction risk also directly affects the safety, economy and sustainability of engineering projects. Aiming at the limitations of traditional risk assessment methods in the dynamic and systematic aspects, this paper proposes a comprehensive analysis method combining Bayesian network (BN) and system dynamics (SD). First, through expert interviews and field investigations, an evaluation system consisting of 5 dimensions and 20 indicators was established, and the combination of entropy weight method and expert score was used to empower the system.