University of Science and Technology Beijing

Fragment-Specific Stable Carbon Isotope Analysis for Screening the Authenticity of Red Yeast Rice Products

Monacolin K (MK) in red yeast rice (RYR) is structurally identical to pharmaceutical lovastatin in its lactone form, making their origins difficult to distinguish. This study examined the δ13C value of hydrolysis-derived 2-methylbutyric acid (2-MBA) as a fragment-specific screeni...

Optimization and controlling of the microstructure and mechanical properties of high-Nb TiAl alloy by extrusion temperature

Hot extrusion is an effective route to tailor the microstructure and mechanical performance of TiAl intermetallic alloys. In the present work, a Ti-45Al-8Nb-0.2W-0.1B alloy was multi-pass extruded at five temperatures spanning the (α + γ) two-phase region to the α single-phase re...

Negative‐Thermal‐Expansion Strategy Enables Hard Carbon With Tuned Heat/Strain Tolerances for Sodium Storage

ABSTRACT The thermal/stress runaways pose a risk to the safety and industrialization of sodium‐ion battery (SIB), which hence requires external management equipment. Actually, the thermal/stress generation originates from the repetitive Na + intercalation within carbon interlayer...

Investigation on NH3‑SCR performance and low N2O formation mechanism over MIL‑100(FeMn) catalyst

Fe-based metal–organic frameworks (Fe-MOFs) have attracted extensive attention in the field of NH 3 -SCR denitrification due to their environmental friendliness and tunable redox properties. In this work, the catalytic performance of bimetallic MIL-100(FeMn) catalysts was systema...

Mechanical Variability and Acoustic Emission Heterogeneity of Bedded Coal Under Uniaxial Compression

Bedding orientation affects coal strength and the interpretation of acoustic-emission (AE) signals, but detected activity and retrospective sequence descriptors have different monitoring meanings. Twelve coal specimens were tested under uniaxial compression, with three at each be...

Task Motivation, Task Emotions, and Cognitive Engagement in L2 Oral Tasks: The Case of Chinese Post-Secondary L2 Learners of English

Drawing on control-value theory and situated expectancy-value theory, this study investigated the relationships between task motivation (i.e., expectancy for success, task values, and task cost), task emotions (i.e., task enjoyment and task anxiety), and cognitive engagement in L...

Enhancing flood resilience in critical communication infrastructures: empirical analysis and software-defined architecture design

Mobile communication systems serve as a lifeline for disaster response, yet catastrophic floods—exemplified by the Beijing 23·7 and Zhengzhou 7·20 events—have exposed profound vulnerabilities that trigger cascading failures in emergency command and rescue operations. While existi...

3D Microfluidic Networks Formed by Mechanically Guided Compressive Buckling for Large‐Scale Perfused Tissue Culture

ABSTRACT Engineered tissues and organoids offer transformative potential for drug screening and regenerative medicine, yet their application is constrained by limited size and slow maturation. Despite the development of various channel networks for large‐scale engineered tissue p...

Layer–Island Mixed Growth and Non-Equilibrium Structural Evolution of Fe-Co-Ni-Mn-Al High-Entropy Alloy Thin Films: Insights from Molecular Dynamics Simulation

Molecular dynamics (MD) simulations were used to study the deposition and growth of Fe-Co-Ni-M-Al multi-component alloy films on a Si(100) substrate. By comparing the surface topography at incident energies of 0.1~0.5 eV, it was observed that an increase in incident energy enhanc...

Monodentate Acetate-Coordinated Electrolyte for Accelerated Zn2+ Desolvation and Stable Zinc Anodes

Abstract Aqueous zinc-ion batteries (AZIBs) are promising candidates for large-scale energy storage, but their practical deployment is hindered by dendrite growth and water-induced side reactions. These challenges mainly arise from the high desolvation barrier of [Zn(H2O)6]2+, wh...

Grating-coupled magneto-optical surface plasmon resonance biosensor for biomolecular detection

This work demonstrates a lithography-free and cost-effective grating-coupled magneto-optical surface plasmon resonance (MOSPR) biosensing platform based on a Blu-ray disc (BD-R) grating. The periodic grating obtained from a commercial BD-R through a controlled delamination proces...

Green Innovation Effects and Driving Factors of Urban Environmental Information Disclosure: Based on fsQCA and Complex Mediation Analysis

Abstract Government environmental information disclosure (Pollution Information Transparency Index, PITI) is a critical step in the environmental management system. To investigate the key elements driving government environmental information disclosure in a complex environment, t...

Computational Approaches to Cyber-Syndrome: A Scoping Review with Considerations for Adolescent Mental Health

Cyber-Syndrome denotes the physical, social, and thinking disorders arising from problematic cyberspace interactions, with its thinking dimension encompassing cognitive deficits (e.g., attentional impairment, executive dysfunction) and affective disturbances (e.g., mood disorders...

Optimization model of mass and energy in the electric arc furnace using green direct reduced iron

The urgent need to decrease CO 2 emissions from the steel industry has focused attention on steel production in the electric arc furnace (EAF), which produces 20% of the CO 2 emissions of the blast furnace-basic oxygen furnace (BF-BOF) route. This result is possible using high-qu...

Non-sewered sanitation systems reshape microplastics into chemically complex and reactive contaminants

Non-sewered sanitation systems (NSSSs) are gaining global attention as decentralized solutions, yet the transformation of microplastics (MPs) within these systems remains poorly understood. Here, we investigate MP characteristics in the influent and effluent of two NSSSs using la...

Electric Double Layer Organization of Proton-Transfer Pathways Regulates Alkaline Hydrogen Evolution

Abstract Constructing bifunctional catalysts with synergistic interfaces is a promising strategy to overcome the sluggish kinetics of the hydrogen evolution reaction (HER) in alkaline media, where interfacial proton transfer plays a critical role in the reaction kinetics. However...

Mass-momentum synergistic transport criterion in gravity-controlled closed phase-change systems: Numerical validation using nanofluid-enhanced heat pipes

In closed phase-change heat transfer system under gravitational control, the essence of coordinating the material basis (mass source) and the driving potential (momentum source) to maintain efficient circulation dynamics lies in the fact that the geometric topology of the liquid...

Tailoring Piezoelectric Materials for High Energy Density Batteries: Fundamentals, Advances, and Perspectives

ABSTRACT High‐energy‐density rechargeable batteries are plagued by electrode polarization, unstable interfaces, and parasitic side reactions, which severely restrict their electrochemical performance across diverse battery chemistries. Piezoelectric materials can construct dynami...

Deep Learning-Enhanced Lateral-Flow Microarray Biosensor for Multiplexed Inflammatory Biomarker Analysis

Abstract Beyond simply functional integration, achieving synergistic enhancements in multiplex detection, quantitative robustness, and intelligent analysis remains a key challenge for next-generation biosensing platforms in precision diagnostics. Lateral flow biosensors are attra...

Effect of Friction Surfacing on the Microstructure and Corrosion Behavior of CoCrFeMnNi High-Entropy Alloy

In recent years, CoCrFeMnNi high-entropy alloy (HEA) has attracted considerable attention owing to its exceptional mechanical properties, thermal stability and corrosion resistance. Friction surfacing (FS), as a solid-state additive manufacturing technology that can avoid point d...