Abstract.The multiphase corrosion structure on the surface of underwater ceramic cultural relics was successfully replicated via the sol-gel process combined with hydrothermal mineralization treatment. XRD analysis indicates that the corrosion layer mainly consists of pyrite (FeS2, 65±3%) and goethite (α-FeOOH). The difference from the samples of the Nanhai I shipwreck (FeS₂，55±5%) is attributed to the enhanced metabolic conditions in the laboratory. SEM verifies that the layered structure (with a thickness of 200±30 μm) and porosity (35±5%) are highly consistent with those of natural samples … Read more →

Abstract.The geological structures of the coal fields in China are complex. With the continuous increase in the mining depth, the coal seams show the characteristics of high gas and low permeability, and the disaster potential of a coal and gas outburst intensifies in the process of coal mining. Gas drainage is one of the primary measures to prevent and control gas disasters. How to effectively improve the permeability of a coal seam is an urgent problem to be solved. Currently, the method of loose blasting is used in engineering to enhance the permeability of coal seams. However, the technology of … Read more →

Abstract.There are significant differences in the physiological structure and function of male and female human brains. Sex-related changes in human brain structure have been widely discussed in many studies, and the research results are inconsistent. This paper mainly uses Voxel-Based Morophometry (VBM) and Functional Connectivity (FC) methods. The MRI data images of 5 healthy men and 5 healthy women from USTC were processed and analyzed. Format conversion, origin correction, segmentation, smoothing, statistical difference analysis and other processing steps were carried out successively to find the … Read more →

Abstract.This study addresses the technical challenges of high carbon emissions in traditional Portland cement and the tendency of Magnesia Oxychloride Cement (MOC) to undergo "backfiring" (oxidative cracking). A novel preparation method for reactive magnesia cement is proposed, based on precise control of CO₂ concentration (10⁻³.⁴–10⁻⁰.⁷ atm), which promotes the stable formation of hydromagnesite (Mg₅(CO₃)₄(OH)₂·4H₂O). This significantly enhances material strength (compressive strength up to 120 MPa) and weather resistance. Combining PHREEQC thermodynamic simulations and X-ray diffraction analysis, … Read more →

Abstract.Coal mines in China primarily rely on manual methods for mine ventilation monitoring, which demands significant time, labor, and resources while offering low data real-time performance. An online ventilation network monitoring and early warning analysis software is developed. By integrating underground ventilation monitoring sensors, the system enables dynamic calculations of the ventilation network based on real-time underground changes. It provides clear and intuitive dynamic displays of airflow, wind speed, and other parameters in various tunnels on the ventilation system diagram. … Read more →

Abstract.This paper reviews the properties of graphene-reinforced proton exchange membranes (PEM), their preparation methods, and applications in fuel cells. Graphene is a crucial material for enhancing the performance of PEMs due to its excellent mechanical strength, electrical conductivity, and thermal stability. By combining graphene with conventional PEM materials such as Nafion, significant improvements have been made in proton conductivity, mechanical strength, and durability. The paper also discusses the current status, challenges, and future directions of graphene applications in PEM fuel cells … Read more →

Abstract.This study employs the ERA5-Land soil moisture dataset and applies an exponential filter to estimate root-zone soil moisture across the Indochina Peninsula. The filtered estimates are then compared against the original root-zone soil moisture provided by ERA5-Land. The focus is on examining the parameter range of the exponential filter model—that is, how closely the estimated root-zone soil moisture matches the known ERA5-Land values under different filter time constants. The objective is to assess the impact of filter parameter selection on the estimation results and to provide guidance for … Read more →

Abstract.Coal and gas outburst has always been one of the main disasters affecting coal mine safety production, and the main areas where coal and gas outburst accidents occur are mainly coal roadway excavation. Taking the 3501 intake and return airway of the 3rd coal seam in Xinyuan Coal Mine as the research object, the latest continuous flow coal roadway excavation outburst prediction technology is introduced. Starting from simulating the in-situ coal seam on the coal roadway simulation test platform, the sensitivity and critical value of the outburst hazard index of the simulated coal seam with known … Read more →

Abstract.Grammar is essential for effective communication and academic success in senior high school English. However, traditional grammar teaching often relies on memorization and isolated rules, making it difficult for students to use grammar in real-world contexts. The three-dimensional grammar view, proposed by Larsen-Freeman, focuses on integrating grammar's form, meaning, and use. This paper highlights common challenges in traditional grammar teaching, such as a lack of context and overemphasis on rules, and proposes strategies for applying the three-dimensional approach in high school … Read more →

Abstract.In order to evaluate the basic performance of silane coupling agent-modified foamed asphalt under the monsoon freezing zone.The basic properties of matrix asphalt (AH90), foamed asphalt (FAH90) and silane coupling agent-modified foamed asphalt (MFAH90) after salt-freeze-thaw cycling were evaluated using needle penetration, softening point and ductility tests.The results show that the softening points of all types of asphalt gradually increase with the increase in the number of salt-freeze-thaw cycles, which enhances the high-temperature stability of asphalt to a certain extent.The high … Read more →

Abstract.To evaluate the adhesion of silane coupling agent-modified foam asphalt under the monsoon freezing zone. In this paper, the adhesion of matrix asphalt (AH90), foamed asphalt (FAH90) and silane coupling agent-modified foamed asphalt (MFAH90) after salt-freeze-thaw cycling is rated using the water-boiling method test and the rate of mass loss of each type of asphalt after the water-boiling method is calculated. The results show that with the increase of the number of salt-freezing and thawing cycles, the adhesion patterns of matrix asphalt, foamed asphalt and silane coupling agent modified … Read more →

Abstract.The construction of high standard farmland provides material basis and technical support for the application of smart agriculture technology and equipment, promoting the deep integration of smart agriculture technology and modern agriculture. Based on data from agricultural departments in prefecture level cities, a model was used to analyze the impact of high standard farmland construction on smart agriculture and to clarify its mechanism of action. Research has found that both high standard farmland construction and smart agriculture exhibit agglomeration in space; High standard farmland … Read more →

Abstract.With the rapid development of industrialization and urbanization, soil heavy metal pollution has become a global ecological environment and health problem. Heavy metals such as Cd, Pb, and Hg enter the soil environment through mining, industrial emissions, and agricultural activities, and pose a serious threat to soil ecological function, food security, and human health due to their concealment, refractory degradation, and bioaccumulation. Traditional remediation technologies have limitations such as high cost and high risk of secondary pollution, while bioremediation technologies have … Read more →

Abstract.Baijiu wastewater is characterized by large output, high COD content and good biodegradability. It can be used as an additional carbon source in the biological denitrification process of wastewater. However, the phosphorus content in it is relatively high. It is necessary to remove phosphorus from the brewing yellow water first, and then add it to municipal sewage and other sewage with a low carbon-nitrogen ratio.This thesis takes yellow water from Baijiu brewing as the research object. Based on the existing chemical phosphorus removal methods, it is explored and concluded that: compared with … Read more →

Abstract.This paper examines recent academic research on applying generative AI and computational methods to optimize sustainable architectural design. Buildings account for roughly one-third of global carbon emissions and energy use, especially via HVAC systems. Early-stage design optimization is therefore crucial to improve efficiency and reduce environmental impact. Generative design including evolutionary and parametric algorithms has emerged as a key approach to exploring diverse design options for sustainability. More recently, advanced AI (e.g. machine learning surrogates, GANs, diffusion … Read more →

Abstract.In view of the problems such as wear, deformation and tube burst existing in the operation of the screen superheater in the supercritical circulating fluidized bed boiler, a computational quasi-model of the screen superheater was established in this paper. Combined with the actual operation data of the boiler, the temperature distribution and thermal deformation of the screen superheater tube panel under 100% MCR conditions were numerically simulated by ANSYS finite element analysis software. The results show that the maximum wall temperature of the tube panel appears at the penetration wall … Read more →