China University of Geosciences (Beijing)

Multifractal Evolution Characteristics of Multiscale Fracture-Pore Structures in Coal under CO2 Phase-Transition Fracturing

Abstract To deeply analyze the multifractal evolutionary characteristics of multiscale fracture-pore structures in coal subjected to CO2 phase transition fracturing (CO2–PTF), CO2–PTF experiments on coal samples were carried out in this study. Multiple multiscale fracture-pore ch...

Mechanical Behavior of Layered Heterogeneous Hydrate-Bearing Sediments: Insights from Triaxial Experiments and Numerical Modeling

Abstract The mechanical behavior of natural gas hydrate-bearing sediments (HBS) is critical for safe and efficient gas production. However, marine HBS commonly exhibit layered heterogeneity caused by spatial variations in clay distribution and hydrate saturation (Sh), whose effec...

Electron‑Sponge S‑Scheme Heterojunctions via Mo–N Bridging Enable Highly Selective Photocatalytic CO 2 Methanation

ABSTRACT The kinetic limitations of multi‐electron transfer present a fundamental challenge to achieve selective CO 2 photoreduction to CH 4 . This work pioneers an interface electron‐flux intensification strategy by constructing a Mo–N‐bridged S‐scheme phosphomolybdic acid (PMA)...

Coupled convection–radiation heat transfer and optimization in microscale fin structures

With the increasing power density of electronic devices, effective thermal management is essential for maintaining performance and reliability. Although air-cooled heat sinks have been extensively investigated, studies have primarily focused on structural optimization and convect...

Nanopipette Sensing of APE1 Activity via Enzymatic Recycling and DNA Tetrahedron−Streptavidin Reporting: Profiling in Cancer Diagnostics, Oxidative Stress, and Cell Cycle

Abstract Apurinic/apyrimidinic endonuclease 1 (APE1) is a clinical biomarker whose small molecular size hinders direct detection by conventional nanopores (30 nm). Here, we report a nanopipette platform integrating APE1-driven enzymatic recycling amplification with DNA tetrahedro...

Structural Softness–Rigidity Mediation Enables Multicolor Emission and Long‐Lived Phosphorescence in Hf/Zr Halides

ABSTRACT Multicolor fluorescence, typically favored by soft environments, and phosphorescence, which relies on rigid lattices to stabilize triplet excitons, are fundamentally incompatible and hard to coexist within a single material. Here, we report a crown–ether–directed lattice...

Structural Softness–Rigidity Mediation Enables Multicolor Emission and Long‐Lived Phosphorescence in Hf/Zr Halides

ABSTRACT Multicolor fluorescence, typically favored by soft environments, and phosphorescence, which relies on rigid lattices to stabilize triplet excitons, are fundamentally incompatible and hard to coexist within a single material. Here, we report a crown–ether–directed lattice...

Species-Specific Molybdenum Enrichment in Peanuts (Arachis hypogaea) from Natural Molybdenum-Rich Agricultural Soils: Uptake Drivers and Dietary Risk Implications

Molybdenum (Mo) is an essential plant micronutrient, and legumes may accumulate relatively high Mo because of their greater physiological demand. Field evidence for species-specific Mo transfer in naturally Mo-enriched soils remains limited. Rhizosphere soil and edible seeds/grai...

Potassium isotopes reveal lithospheric control on the evolution of deep-sourced carbonated silicate magmas

Kimberlites and related CO2-rich ultramafic rocks such as aillikites commonly show Nd-Hf isotope decoupling (unradiogenic εHf at a given εNd), attributed to either recycled oceanic slabs or interaction with metasomatized continental lithospheric mantle (CLM). We present potassium...

Structure, Biostratigraphy, and Numerical Modelling of the Nizampur Basin (Pakistan): Implications for Deformation in the Himalayan Fold‐Thrust Belt

ABSTRACT The Nizampur Basin in northern Pakistan preserves a structurally important segment of the Himalayan fold‐thrust belt between the Attock‐Cherat Range (ACR) and the Kalachitta Range. Its architecture records interaction among the Hissartang Fault, the Main Boundary Thrust...

UAV Applications in Geophysical Exploration: A Review

Unmanned aerial vehicles (UAVs) extend geophysical measurements into terrain where ground access is difficult and crewed surveys are costly or operationally constrained. Their practical value, however, differs substantially among sensing methods and platform configurations. This...

Frictional characteristics and drag-reduction optimization of flexible drill strings in offshore ultrashort-radius sidetracking wells

Offshore ultrashort-radius sidetracking is an important re-entry and infill-drilling technique for exploiting remaining reserves in mature offshore fields and improving platform-based field redevelopment efficiency. However, in offshore sidetracking wells with large local curvatu...

Mobility Control and Adsorption-Retention Behavior of an Engineered-Strain-Derived Microbial Polysaccharide in High-Temperature and High-Salinity Porous Media

Abstract Conventional polymers often undergo viscosity loss and performance deterioration in high-temperature and high-salinity reservoirs. A novel microbial polysaccharide system developed from an engineered oil-recovery strain exhibits good temperature and salt tolerance as wel...

Updating thermal head of RECoverable Autonomous Sonde (RECAS) for better drilling performance in Qilin Subglacial Lake exploration

Abstract. There are numerous subglacial lakes in Antarctica, typically covered by thick ice sheets. Qilin subglacial lake is one of the largest subglacial lakes in Antarctica, lying beneath approximately 3600 m of ice. The exploration of this unique environment is of considerable...

A Type-I/II Photosensitizer with Cell Death Self-Reporting for Ferroptosis-Potentiated Photodynamic Theranostics against Large Tumors

Abstract Photodynamic therapy (PDT) with ferroptosis induction is a promising antitumor strategy, yet its efficacy is compromised by conventional photosensitizers limited to single-pathway ROS generation, particularly in large tumors. Herein, a series of D−A−D AIE photosensitizer...

Thalassinoides Ichnofabric Architecture as Complementary Evidence for Sequence‐Stratigraphic Interpretation in Carbonate Ramp Systems: Insights From the Mississippian Mobarak Formation (Alborz, Iran)

ABSTRACT This study integrates ichnological, sedimentological, and sequence‐stratigraphic observations to investigate depositional and substrate changes within the Mississippian Mobarak Formation carbonate ramp in the Alborz Basin, Iran. Four stratigraphic sections were examined,...

Design of a novel hybrid advanced adiabatic compressed air and gravity energy storage system

Abstract To enhance the energy efficiency and energy density of physical energy storage (PES) systems, this study introduces a novel hybrid advanced adiabatic compressed air and gravity energy storage (HAACAGES) system. This system integrates advanced adiabatic compressed air ene...

Multi-Objective Intelligent Optimization of Excavation and Support for Super-Large Cross-Section Small Clear Spacing Tunnels in Urban Sensitive Areas: An Integrated Study of Numerical Simulation and Machine Learning

Coastal subsea tunnels often traverse shallow heterogeneous strata, creating significant deformation risks. Deformation control is therefore essential for safe urban construction. This study integrates FLAC3D, SSA-LSSVM, and NSGA-II for multi-objective excavation-support optimiza...

Gold-granulite association in Precambrian terranes: A metallogenic conundrum

Gold mineralization in Precambrian high-grade metamorphic terranes, particularly those hosted within middle- to lower-crustal upper amphibolite- to granulite-facies domains, remains a metallogenic paradox. While the vast majority of economic gold resources are concentrated in epi...

Metasomatized mantle source and far-field effect of flat-slab subduction at the Huangtuliang gold deposit, northern margin of the North China Craton

The metasomatized lithospheric mantle has been proposed as the primary source for gold mineralization at cratonic margins, yet without much direct evidence. To substantiate this theory with geochemistry, we study ore-hosting alkaline syenite and mineralization-related lamprophyre...