Evaluation of landslide susceptibility of mountain highway based on RF and SVM models.

Geological complexities along mountain highways frequently trigger landslides, posing significant threats to transportation safety and infrastructure. This study evaluates landslide susceptibility along the Lizha-Jiezi section of China's G345 national highway using Random Forest (RF) and Support Vector Machine (SVM) models. Eleven conditioning factors including altitude, slope, aspect, plan curvature, profile curvature, lithology, distance to fault, rainfall, distance to river, normalized difference vegetation index (NDVI), and distance to road were analyzed using remote sensing and field surveys.

Structural characterization of novel extracellular polymer substances from an Alternaria sp. 17463 and their impact on soil metabolism.

Dark septate endophytes (DSE) are widely used in ecological restoration. In this study, we first discovered that the metabolic products of the DSE strain Alternaria sp. 17463 contain extracellular polymeric substances (EPS).

Landscape and mA post-transcriptional regulation of soybean proteome.

The soybean is a critical source of vegetable protein, but its proteome remains undercharacterized. Here, we quantify 12,855 proteins across 14 soybean organs using 4D data-independent acquisition mass spectrometry (4D-DIA-MS), creating the most extensive soybean proteome dataset to date. Organ-specific protein expression and co-expression analyses highlight functional specificity with significant differences in protein-transcript abundance across organs.

Damage water inrush mechanism of loading unloading stress path of mining floor in deep coal seam.

The mechanism of water inrush from the stope floor has always been the key and difficult point in the research field of coal mine water disaster prevention and control. The mechanical essence of water inrush from the mining floor is the loading-unloading stress state transformation process. To reveal the joint action mechanism of principal stress state transformation and water pressure in the process of water inrush from the stope floor, the author studied the water inrush criterion, the characteristics of saturated rock damage test and the characteristics of principal stress transformation of coal floor using theoretical analysis, laboratory test and numerical calculation.

Tooth position prediction method based on adaptive geometry optimization.

A multi-layer feature optimization Transformer-based tooth position prediction method is proposed to address the problems of difficult access to high-precision medical data and the difficulty of capturing and representing hierarchical features and spatial relationships among teeth by current methods. First, a geometric adaptive optimization strategy and a physiological adaptive reconstruction strategy are designed for real-time adaptation to the complexity of different clinical environments and enhanced pose invariance by integrating the physiological characteristics and anatomical structure of teeth. Then, a hierarchical feature tooth position prediction network was designed to solve the problems of weak ability of MLPs to process high-dimensional data and low accuracy of prediction transformation matrix by extracting hierarchical geometric features of teeth.

Nano-FeO guided synthesis of an F,N-coordinated FeCo bimetallic catalyst H-mediated reductive pyrolysis for the oxygen reduction reaction.

To address the critical challenges of insufficient active site exposure, compromised stability, and sluggish mass transport kinetics in non-precious metal catalysts for the oxygen reduction reaction (ORR), a hierarchical FeCo bimetallic catalyst (FN/FeCoNC-H-700) was developed through synergistic engineering of ZIF-67 pyrolysis. This strategy integrates hydrogen-induced defect generation, F/N dual-heteroatom coordination, and temperature-controlled phase reconstruction. The introduction of hydrogen reduces FeO to generate highly dispersed Fe nanoparticles, which combine with Co and N to form a stable Co-Fe alloy and Fe-N active centers, concurrently enhancing the graphitization degree of the catalyst (/ = 0.

How Self-Involvement affects miners' safety risk Decision-Making: an ERP study.

Unsafe decision-making in coal mining can endanger not only the individual making the decision but also their colleagues and the overall safety of the mine. While prior studies have mainly examined decisions in self-involved safety risk scenarios, the impact of non-self-involved scenarios, where the risk affects others, remains underexplored.This study combines questionnaire surveys with an event-related potential (ERP) experiment to investigate how miners with varying levels of unsafe psychology make decisions in self-involved and non-self-involved safety risk scenarios.

Modifying crude oil synergistic properties with carbon dots and ultrasonic waves.

Improving oil recovery from hydrocarbon reservoirs is a significant goal in the petroleum industry, particularly from an economic perspective. Over the past two decades, the influence of nanotechnology and sonic wave irradiation methods on crude oil properties has been well established. Among these, carbon nanoparticles have demonstrated a notable impact on fluid-rock interactions within reservoirs.

Enhancement of biodegradation of tar-rich coal through sequential treatment by N. mangyaensis and Ochrobactrum sp.

Sequential degradation using two bacteria with complementary metabolic capabilities offers a promising strategy for enhancing coal biodegradation efficiency. In this work, the biodegradation processes of the Baode tar-rich coal in Ordos Basin by two sequential treatment modes of N. mangyaensis and Ochrobactrum sp.

Study on the mechanical characteristics of hard rock strata and the response law of overlying strata stress field under structural transient excitation.

It is the theoretical basis for the prevention and control of coal and rock disasters to reveal the occurrence mechanism of mechanical response of coal and rock in stope. The transient characteristics of the spatial structure of overlying strata and the mechanical response of coal and rock in different regions under the action of pressure are studied by similar simulation experiments. On this basis, the elastic foundation beam model is established to analyze the flexural deformation response of hard rock strata under the influence of structural transient.

Research on advanced grouting curtain technology for water interception and control at the source of aquifer in coal seam roof.

To solve the problem of safe mining of coal resources affected by the roof breccia aquifer, the author analyzed the scientific location, drilling technology, selection of grouting materials and applicability ratio, grouting pressure and other issues of underground grouting cutoff curtain wall construction, and analyzed and evaluated the grouting effect using water discharge test, drilling coring, drilling cuttings judgment and so on. The research results indicate that the migration range of slurry in both porous and fractured media increases with grouting time, but the growth rate gradually slows. In pore single fracture media, slurry migration preferentially enters the fracture channel and then diffuses along the direction of the fracture into the porous media; For cracks with small openings, pure cement slurry should be used.

Study on dynamic sand collapse mechanism of weakly consolidated rock strata in thick bedrock stope in western China.

The superimposed disaster of water and sand collapse and strong ore pressure appearance in the two coal bases of Huanglong and Ningdong mining areas in western China is a kind of dynamic sand collapse disaster of weakly consolidated rock strata in the roof of thick bedrock mining. This type of disaster is a new type of stope roof disaster, which is different from the previous non-dynamic water and sand collapse disasters in shallow buried and near loose layer stope in terms of appearance, material source and power source. As this type of disaster is sudden, destructive and powerful, it poses a serious threat to the safety of production, so how to effectively prevent and control the recurrence of disasters has become a difficult problem to be solved in many mining areas.

Dual-Band Resonant Acoustic Metasurfaces from Nested Negative Effective Parameter Unit.

Phase gradient acoustic metasurfaces often exhibit pronounced structural dependence in imaging applications, with significant performance variations arising from differences in the negative effective parameters of resonant unit cells. However, the relationship between imaging performance and negative effective parameters near resonance frequencies-particularly in multi-band nested structures-remains insufficiently studied. To address this knowledge gap, this work combines effective parameter theory with local resonance characteristics to construct a comparative model investigating how negative effective mass density and modulus influence the imaging quality of single-band and dual-band nested metasurfaces in series and parallel configurations.

Visualizing the bibliometrics of research trends and hotspots on grazing effects on global grassland vegetation.

The effect of grazing on degraded grassland ecosystems is one of the key issues under study. This study analyzed the literature indexed in the Web of Science (WoS) and China National Knowledge Infrastructure (CNKI) databases using co-occurrence network visualization (countries, institutions, and authors) and hotspot analysis to assess the current research landscape and hotspot trends in global studies on grazing effects on grassland vegetation. The following findings were revealed: (1) The number of publications had increased over the years, indicating sustained international interest in the field of grazing-affected grassland vegetation, with a not yet close but increasingly frequent global collaboration.

Corn stalk biochar modified with imidazolium-based ionic liquids for the removal of Cd from mine water.

Mining-induced heavy metal pollution poses an urgent ecological challenge. Recently, biochar, especially corn stover biochar (CSB) modified with ionic liquids (ILs) for weak interactions, has shown promise in mine water remediation. In this study, we used charred corn stover as biochar and synthesized 1-methyl-3-[3-(trimethoxysilyl) propyl] imidazolium IL as modifier to create imidazolium-based IL-modified biochar.

Mechanism of cognitive style effects on hazard recognition of construction workers: A machine learning-aided approach.

BackgroundHazard recognition is a critical skill for construction workers and primarily consists of two stages: visual search and cognitive processes. Cognitive style, categorized as field-dependent (FD) and field-independent (FI), significantly influences this process. FD individuals rely more on external cues and contextual information, while FI individuals are more detail-oriented and analytical.

Red Emissive Carbon Dots as Fluorescent Probe for Specific Sensing and Imaging of HCIO.

Selective detecting and tracking of HClO is crucial for reflecting related oxidative stress process and environmental safety. In this research, we present the red emissive carbon dots (CDs) with advantageous optical performances including high fluorescent stability, strong intensity and advanced quantum yield. The CDs showed excellent selectivity and sensitivity towards HClO with superior anti-interference performance and outstanding detection limit, indicating the CDs based fluorescent nanoprobe is not only highly suitable for detecting HClO in complicated water samples by solution, but also serve as prospective fluorescent filer paper sensor for fast detection.

Structural design and enhanced electrochromic properties of thiophene-based covalent organic framework.

Covalent organic framework (COF) materials are a class of porous organic polymers with crystal structures connected through strong covalent bonds. Due to the diversity as well as designability of their structural units, the framework structure can be precisely regulated at the atomic level through the combination of virus-active building units. In particular, the advantages of COF materials, such as designable space structure, regular pore structure, high specific surface area, low density, high thermal stability, and chemical stability, make it one of the ideal materials in the field of optoelectronic materials.

Regulation of Ni Single-Atom/Nanoparticle Cooperative Catalytic Systems by P Heteroatom Asymmetric Coordination for Efficient Electrocatalytic CO Reduction.

Earth-abundant transition-metal-based single-atom catalysts and nanoparticulate catalysts exhibit relatively high performance for the electrocatalytic CO reduction reaction (eCORR). However, the localized orbital structures of active sites of single-atom catalysts make it difficult to effectively couple key intermediates, thereby limiting their catalytic performance. Nanoparticulate catalysts are prone to aggregation during the eCORR, leading to an unwanted hydrogen evolution reaction.

Geometric properties of the additional third-order transitions in the two-dimensional Potts model.

Within the canonical ensemble framework, this paper investigates the presence of higher-order transition signals in the q-state Potts model (for q≥3), using two geometric order parameters: isolated spins number and the average perimeter of clusters. Our results confirm that higher-order transitions exist in the Potts model, where the number of isolated spins reliably indicates third-order independent transitions. This signal persists regardless of the system's phase transition order, even at higher values of q.

Do males and females with matched body size/composition possess comparable physiological and perceptual responses in transient neutral-cool environments?

Females have been found to react differently to temperature changes than males. In this study, we recruited 19 healthy young adults (9 males and 10 females) of comparable body size (height, body mass, skeletal muscle, and fat mass) to see if their thermophysiological and perceptual responses to stepwise cooling (from 24 °C to 20 °C and then to 16 °C, stepwise cooling: 4 °C/h) were similar. Perceptual responses (thermal sensation, thermal comfort, thermal pleasure, and thermal satisfaction) and physiological indicators (thyroid and sex hormone levels, metabolic rate, skin temperature, forearm-finger skin temperature gradient and core temperature) were recorded and compared.

Resource utilization of lithium slag supplementary cementitious materials through mechanical activation: mechanism investigation and process optimization.

The use of lithium slag (LS) in the preparation of supplementary cementitious materials (SCM) effectively mitigates the environmental pollution caused by open-air storage and landfill disposal of LS. Focusing on region-specific LS as the subject of study, this research proposes optimizing the mechanical properties of SCMs by regulating the grinding time and LS dosage. Based on the analysis of the hydration products and microstructure of the SCM, the LS with the median particle size of 11.

Electric fan-based cooling strategies to mitigate heat strain during prolonged heat exposure in young males.

Prolonged exposure to hot-humid environments can elevate core temperature and induce severe cardiovascular strain, potentially triggering an inflammatory response. Electric fan use and cold water consumption are common cooling strategies to reduce core temperature, but it remains unclear whether combining these two can effectively alleviate heat strain during daylong exposure. This study aimed to evaluate the efficacy of combining fan use with cold drink or ice slurry intake in mitigating physiological responses and thermal perceptions during 8 h of heat exposure (36.

How does digital transformation affect corporate sustainability performance? Evidence from listed energy companies in China.

Promoting sustainable growth in the energy sector is key to China's high-quality development under socialist modernization. Based on dynamic capability theory and the resource-based view, this study uses unbalanced panel data (2011-2023) of Chinese listed energy enterprises to examine how digital transformation (DT) impacts sustainable development performance (SDP), including its subdimensions: financial performance, environmental‒social governance (ESG), and innovation. Using two-way fixed effects models and mediation analysis, we find that (1) DT significantly enhances SDP; (2) this improvement operates through alleviating financing constraints and optimizing resource allocation efficiency; and (3) the benefits are more pronounced in small-scale enterprises and downstream segments of the energy value chain.

Prolonged Humid Heat Triggers Systemic Inflammation and Stress Signaling: Fluid Intake Modulates NF-κB, p38, JNK2, and STAT3α Pathways.

Prolonged exposure to extreme humid heat can induce systemic inflammation, organ stress, and hormonal imbalance. While fluid replacement is commonly recommended, its mechanistic efficacy under humid heat stress remains unclear. This study investigated the impact of fluid intake on thermoregulation, inflammation, organ function, and stress signaling during 8 h of humid heat exposure (ambient temperature: 40 °C, relative humidity: 55%) in 32 healthy young adults (20 males and 12 females).