Beijing Electronic Science and Technology Institute

Star-ov: satellite-oriented trusted authorization and responsibility with stratified model encryption and ownership verifications

Abstract With the increasing adoption of deep neural networks (DNNs) in remote sensing interpretation and on-orbit intelligent processing, protecting the intellectual property of deployed models faces new challenges, including limited onboard computational resources, constrained...

Distributed Online Self‐Tuning Event‐Triggered Adaptive Control With Parameter Uncertainties

ABSTRACT This article investigates an online self‐tuning event‐triggered distributed tracking control for heterogeneous multi‐agent systems (HMASs) with multiple parameter uncertainties, which is of great significance in addressing complex real‐world scenarios where system parame...

AGDE-Net: a lightweight attention-guided dual-encoder network for tumor core and peritumoral edema segmentation in adult glioma

Abstract Background Glioma is a malignant primary brain tumor arising from glial cells, often resulting in fatal outcomes without timely treatment. Accurate and reliable tumor segmentation is essential for clinical decision-making and therapeutic evaluation. This study aims to de...

Magnetic-field tuning of quantum phase slips in a macroscopic granular aluminum film

Quantum phase slips (QPSs) fundamentally govern low-temperature dissipation in one-dimensional nanoscale superconductors but remain largely unexplored in macroscopic architectures lacking strict geometric confinement. In this work, the magnetic-field-tuned evolution of the macros...

Stabilizing Pt by Introducing TaON to Enhance the Long-Term Stability in Zinc-Air Batteries

Abstract For many years, the application of zinc-air batteries (ZABs) has been plagued by the limited durability of platinum (Pt)-based catalysts. Here, we overcome this problem by adopting an intelligent catalyst design, introducing tantalum (oxy)nitrides (TaON) as a carrier to...

V-Shaped {Cu8}-Added Polyoxometalate for Visible-Light-Driven Hydrogen Evolution and Photothermal Conversion

Abstract A {Cu8}-added polyoxometalate (Cu8AP), H3Cs13[CuB(OH)3(GeW6O26)Cu8(H2O)2(GeW9O34)2]·2Cl·15H2O (1), was synthesized via the lacunary directing synthetic strategy. Visible-light-driven photocatalytic H2 evolution performance revealed an exceptional evolution rate of 12632....

Ab Initio Chemical Kinetics of Radical–Radical Reaction of CH3O with NO2

Abstract This work theoretically investigated the ab initio chemical kinetics of the radical–radical reaction between the methoxy (CH3O) and nitrogen dioxide (NO2), which represents a key C–N interaction in ammonia/hydrocarbon cocombustion. The stationary-point energies were dete...

Fluorescent Molecular Scaffold-Building Mononuclear Iron(II) Complexes Display Synergistic Spin Crossover and Fluorescence Behaviors

Abstract Magnetic fluorescent bifunctional spin crossover (SCO) materials show switchable magnetic and optical properties and have attracted continuous research interest due to their potential application in magneto-optical switches and multi-sensors. Herein, we report two octahe...

Design and Compression Failure Mechanisms of Stiffener–Skin Integrated CFRP Stiffened Panel

ABSTRACT Traditional cobonded CFRP stiffened panels are susceptible to premature stiffener–skin debonding under axial compression. This behavior is mainly caused by discontinuous load transfer across adhesive interfaces, leading to interface‐dominated failure. To investigate the...

Auditable Conformance and Cross-Library Interoperability Testing for ML-KEM and ML-DSA

An implementation that passes internal round-trip tests may still produce artifacts that another library cannot consume. We present an auditable workflow for selected-vector conformance and raw-artifact interoperability testing of ML-KEM and ML-DSA in liboqs and PQMagic. The work...

ATSFV: Attribute-Based Traceable Image Data Sharing Scheme under Multi-Fog-IoVs

The sharing of image data in internet of vehicles (IoVs) plays an important role for traffic management in intelligent transportation systems. Although the emergence of cloud computing provides the storage of image data in the cloud server under internet of vehicles, a single clo...

Differential Coupling of Nanoparticle Translational and Rotational Diffusion to Polymer Relaxation Modes in Unentangled Polymer Melts

Abstract The diffusion of spherical nanoparticles (NPs) in unentangled polymer melts is investigated using coarse-grained molecular dynamics simulations. We show that for both translational and rotational diffusion, when the NP diameter d is smaller than a characteristic length l...

Fractional-Quantum Ferroelectrics: A Route to High-Mobility Ferroelectric Semiconductors

Abstract Ferroelectric semiconductors are promising for multifunctional electronics, yet their typically low carrier mobilities remain a major limitation. Using first-principles phonon-limited transport calculations for monolayer In2Se3, we show that this limitation depends criti...

Interpretable Spatiotemporal Coupling Network for Robust Emission Prediction and Implicit Mechanism Mining in Sludge Gasification

Abstract Thermochemical gasification is a vital green technology for sewage sludge reduction and resource recovery, yet real-time emission forecasting remains exceptionally challenging due to chaotic operational fluctuations, pronounced time lags, and noisy sensor data. Conventio...

Photothermal-Induced In Situ Crystallization of Perovskite Nanocrystals and the Application on Micro–Nano Defect Detection

Abstract Micro–nano defects on the optical elements are critical factors limiting the maximum light intensity tolerance and system reliability. Developing an accurate and efficient method for defect detection remains a significant technical challenge. Notably, under laser irradia...

Computer-Assisted Workflow for DNA Origami-Engineered Triangular Nanopores

Abstract Synthetic nanopores engineered by DNA origami provide a highly biocompatible and structurally programmable platform for elucidating the transmembrane mechanisms of functional macromolecules. However, engineering large DNA nanopores exceeding 30 nm in width remains a sign...

Enzymatic Hydroxylation vs Desaturation: Mechanistic Insights from the Case of Diiron Alkane Monooxygenase AlkB

Abstract Understanding the enzymatic catalytic preferences for hydroxylation or desaturation could provide useful information for the potential regulation and engineering of enzymatic activity. AlkB, a non-heme diiron-dependent alkane oxygenase that catalyzes the hydroxylation of...

Halogen-free Flame-Retardant and Smoke-Inhibiting Rigid Polyurethane Foam with Modified Expandable Graphite and Layered Double Hydroxides

Abstract Developing rigid polyurethane foam (RPUF) featuring well-balanced heat insulation, mechanical robustness, flame retardancy, and smoke inhibition properties through a halogen-free method is crucial for the advancement of building heat-isolated materials. In this study, a...

Coordination Environment Modulation of Laser Sensitivity in Copper(II) APTTz Energetic Complexes: From Aqua to Perchlorate Ligation

Abstract Coordinated water is a major obstacle in the design of high-performance energetic coordination complexes because inert aqua ligands lower energy density and suppress laser sensitivity. Herein, we report a simple strategy for removing coordinated water by changing the Cu:...

Gating Modes in Ion Mobility‐Mass Spectrometry: Principles, Advances, and Coupling With Mass Analyzers

RATIONALE: Ion mobility-mass spectrometry (IM-MS) provides an additional gas-phase separation dimension and complementary structural and conformational information through collision cross-section (CCS) values. Its analytical performance depends not only on mobility resolving powe...