Beihang University

ProtoSurv: prototype-guided adaptation of computed tomography foundation model for lung-cancer prognosis prediction

Abstract Prognosis prediction is important for precision treatment in lung cancer. Chest computed tomography (CT) and deep learning are feasible approaches for learning imaging-based prognostic representations. However, prognostic labels are difficult to obtain because survival e...

Facet Engineering of Cu2O–Ag Heterostructures for Promoting CO Generation in Electrocatalytic CO2 Reduction

Abstract The electrocatalytic reduction of carbon dioxide (CO2RR) into high-value-added and high-energy-density multicarbon (C2+) products hold great significance for sustainable energy conversion and carbon neutrality. However, achieving high product selectivity toward C2+ produ...

Experimental investigation and strength evaluation of steel-plate composite wall-to-wall L- and T-joints with different novel shear reinforcement

The steel-plate composite wall-to-wall joint configuration specified in current design codes is particularly susceptible to shear failure. Existing experimental studies have reached contradictory conclusions regarding whether shear reinforcement can enhance joint strength. The in...

Near-Ambient-Pressure X-ray Photoelectron Spectroscopy for Mechanistic Insights and Applications in Catalysis

Abstract With the rapid development of catalytic science, research has shifted from empirical exploration toward a mechanistic understanding of catalytic processes. In this context, probing surface chemical properties under realistic reaction conditions is essential for uncoverin...

Evaluating Effectiveness and Economic Benefits of Meteorological Health Warning Systems: A Case Study of Stroke Warnings in Tianjin, China

Abstract Meteorological health warning systems have received global attention for their role in climate health adaptation. However, existing evaluation studies rarely considered nonlinear and time-lagged relationships between meteorological factors and health outcomes. Calculatio...

Combined First-Principles and Monte Carlo Investigation of Ion Bombardment Effects in Bilayer Arsenene: Implications for Nanoelectronics

Abstract Bilayer arsenene (As) is a two-dimensional (2D) semiconductor holding great promise for nanoelectronics. For practical applications, it is desirable to tune the electronic properties. In this work, using first-principles calculations and Monte Carlo irradiation simulatio...

Vortex dynamics of a boundary layer disturbed by cylinder wakes: effects of the gap ratio and the relative boundary layer thickness

The vortical structures in a flat-plate boundary layer disturbed by circular cylinder wakes are investigated using particle image velocimetry and hydrogen bubble visualization techniques. The cylinder diameter ( D ) and the gap between the cylinder and flat plate ( G ) are system...

Robust Optimal Reconciliation for Hierarchical Time Series Forecasting With M‐Estimation

ABSTRACT Aggregation constraints, arising from geographical or sectoral division, frequently occur in large collections of time series. Coherent forecasts for such constrained series are expected to adhere to the hierarchical structure defined by these aggregation rules. To enhan...

English-Chinese bilingual instruction in EFL secondary classroom in China: translanguaging as a strategic action to scaffold student learning

Abstract This study investigates how Chinese secondary school students and teachers navigate English language learning through translanguaging practices in South-Eastern China, drawing on data obtained from classroom observations and interviews with teachers from secondary school...

Research on starvation evolution and temperature field prediction for spur gear under oil jet lubrication

Under extreme operating conditions, such as high-speed aerodynamic drag and restricted oil supply, jet-lubricated gears are highly prone to oil starvation. This phenomenon causes a rapid increase in contact zone temperatures, posing a significant risk of severe operational failur...

Thermomechanical Fully Coupled Nonorthogonal Elastoplastic Constitutive Model for Concrete

Abstract This study establishes a thermomechanical fully coupled nonorthogonal elastoplastic model, grounded in thermodynamic principles, to capture concrete’s strength degradation, plastic strain accumulation, and temperature-enhanced dilatancy under thermomechanical coupling. T...

Influence of ammonia blending on soot formation and nanostructure in laminar n-decane diffusion flames

Ammonia blending with hydrocarbon fuels has drawn increasing attention as a strategy for reducing soot emissions and mitigate combustion related particulate pollution. In this study, the influence of ammonia addition on soot formation and structural evolution was investigated in...

Age-dependent patterns of gut Bifidobacterium microbiome in child cohort across a multi-ethnic population, Western China

The gut microbiome evolves dynamically throughout human development, influencing health at different life stages. However, current studies have primarily focused on infant and adult cohorts, leaving biomarkers associated with children in transitional developmental stages insuffic...

Sensing in fluidized bed processes — from capturing details to monitoring the operation

This article offers an opinion and a perspective on the future development of sensing techniques in fluidization technology. The direction of the field is exemplified by a handful of techniques, pointing at the advancements that revolve around two aspects. First, increasing the b...

Environment‐Regulated Crystal‐Structure Reconfiguration of Hybrid Halide Scintillators Enables Tunable STE Emission Toward Intelligent X‐Ray Imaging

ABSTRACT Developing intelligent x‐ray scintillators requires precise regulation of scintillation emission. However, the complex structural factors governing luminescence in organic–inorganic hybrid metal halides (OIMHs, A m BX n ) remain elusive, limiting their rational design. H...

Afforestation enhances ecosystem stability in the farming-pastoral ecotone of northern China, but its effects are constrained by water availability

Abstract The farming-pastoral ecotone of northern China (FPENC), a typical semi-agricultural and semi-pastoral ecologically fragile zone, has long faced controversy over afforestation due to its water-limited environment, raising concerns about how afforestation affects this frag...

Perspective-n-Point Post Optimization for Far-Field Pose Measurement Based on Weighted Central Normalization

Far-field vision-based pose measurement is a crucial technology for applications such as high-resolution Earth observation and space security early warning. However, owing to the perspective imaging model of long-range optical systems, conventional vision-based pose measurement m...

Analysis of lubrication and dynamic characteristics of spur gear considering angular misalignment error

Angular misalignment error is a common issue in gear transmission systems, significantly altering mesh characteristics and structural integrity. While numerous studies have investigated the contact mechanics and dynamic responses induced by these errors, their coupled influence o...

Dynamic Formation and Protective Role of 0D Carbon Dots During High‐Temperature Catalytic Graphitization

ABSTRACT Phenolic resin (PR) has been extensively employed as an ablative thermal protection material in aerospace applications. While catalytic graphitization has been shown to enhance ablative resistance, the mechanism has remained unclear due to the contradiction between enhan...

Meter-depth and multi-polarization addressable zoom 3D meta-holography

Propelled by rapid advances in nanofabrication, meta-holography has become a frontier hot spot in optics. 3D meta-holography, in particular the large depth and multi-polarization addressable ones, with extraordinary expansion of the control dimension and information capacity, off...