Beijing Institute of Technology

Effect of Heat Treatment Process on the Mechanical Properties of 40MnBNbVTiMo Hot-Stamped Steel and Industrial Validation

This study developed a novel hot-stamped steel 40MnBNbVTiMo for automotive application, which achieves ultra-high strength by microalloying and hot stamping process optimization. The continuous cooling transformation (CCT) curve is established, revealing that Ac1, Ac3, Ms, and Mf...

Robotic 3-DoF rotation of oocytes driven by acoustic microstreaming

The rotational operation of oocytes plays a critical role in embryo engineering, particularly in assisted reproductive technology, cloning, and gene research. The conventional manual method relies heavily on operator experience and repetitive trial-and-error processes, while exis...

Energy, exergy and economic analysis of bioinspired wick solar desalination leaf

Freshwater scarcity and energy constraints have driven the development of low-carbon and efficient solar desalination technologies. To address the salt accumulation and thermal bridge heat loss commonly encountered in conventional wick solar stills, this study proposes a bioinspi...

NCCT-based habitats and peri-tumoral radiomics enhance pre-operative prediction of benign and malignant sacral tumors

Abstract Background Differentiating between benign and malignant sacral tumors is essential for guiding treatment strategies. This study aims to develop a novel approach utilizing non-contrast computed tomography (NCCT) for the accurate classification of sacral tumors. Methods Fr...

Dynamic Interfacial Adsorption via a Thermoresponsive Biomass Interphase Enables Temperature‐Adaptive Zinc Anodes

ABSTRACT Aqueous zinc batteries face temperature‐dependent interfacial challenges, whereas conventional artificial interphases rely on static passivation and therefore lose effectiveness under thermal perturbation. Here we report a thermoresponsive biomass interphase that enables...

Perceived GenAI competency and university teachers’ intention to continue using generative artificial intelligence: Extending the technology acceptance model

Generative artificial intelligence (GenAI) is reshaping higher education, and understanding teachers’ intention to continue using GenAI is increasingly important in this context. Grounded in the technology acceptance model (TAM), this study examines how different dimensions of te...

Optimization of combustion chamber geometry for the improved-double swirl combustion system based on the sensitivity analysis method

Based on the well-established double swirl combustion system (DSCS) for direct-injection diesel engines, a novel improved-double swirl combustion system (I-DSCS) has been proposed. Previous visualization experiment has verified the superiority of the I-DSCS in enhancing impinging...

FedBCFA: a boundary-constrained feature alignment federated learning framework for multi-center breast MRI classification

Multi-center medical image modeling faces persistent challenges arising from data privacy constraints and cross-institutional distribution discrepancies. Federated learning provides a feasible paradigm for collaborative training of intelligent diagnostic models for breast magneti...

Energy storage for a flexible and decarbonized power system in China: Pathways and regional deployment

The power system transition is central to achieving China's dual‑carbon targets of carbon peaking by 2030 and carbon neutrality by 2060. The rapid expansion of variable renewable energy (VRE) has made pumped hydro storage (PHS) and battery energy storage systems (BESS) critical f...

Ultra‐Bright and pH‐Stable DBCO‐Capped Gold Clusters as NIR‐II Gram‐Typing Nanoprobes for Deciphering Microgravity‐Related Gut Bacterial Restructuring in Rats

ABSTRACT Microgravity‐induced alterations of gut microbiota are implicated in gastrointestinal pathology during spaceflight, yet conventional 16S rRNA sequencing lacks the resolution to remotely track real‐time spatial dynamics of in situ bacteria. Here, we develop ultrabright, p...

In-situ visualization of spatiotemporal non-uniform frosting dynamics on refrigerator evaporators under intermittent thermal-moisture shocks

Intermittent door opening introduces significant thermal and moisture shocks to household refrigerators, severely exacerbating evaporator frosting. However, the dynamic evolution of localized non-uniform frosting under these complex operating conditions remains insufficiently cha...

A Delay-Aware Method for Inverter Nonlinearity Compensation in Sensorless PMSM Drives

This paper presents a delay-aware observer-side voltage-source inverter (VSI) nonlinearity compensation chain for medium- and high-speed sensorless control of permanent magnet synchronous motors (PMSMs). The method reduces the observer-model voltage mismatch caused by inverter no...

Stacking‐Controlled Spontaneous Polarization in Zn–In–S Nanosheets for Efficient Piezo‐Photocatalytic H 2 O 2 Production Toward Uranium Recovery

ABSTRACT Efficient uranium recovery from wastewater is vital for nuclear fuel sustainability and environmental protection. However, conventional photocatalytic and adsorption approaches suffer from sluggish charge separation, limited active sites, and poor selectivity. Piezo‐phot...

SIHG-Rec: Unleashing the Power of Semantic and Interactive Homogeneous Graphs via Dual-Stage Fusion for Multimodal Recommendation

Recent studies in multimodal recommendation, which leverage diverse modal information to address data sparsity and enhance recommendation accuracy, have garnered significant interest. Two critical processes in this domain are modality fusion and representation learning. In repres...

Enhancing the Rotational Bending Fatigue Performance of 20CrMoH via Carburizing and Surface Ultrasonic Nanotechnology

ABSTRACT To alleviate the risk of rotational bending fatigue (RBF) failure in 20CrMoH alloy steel, a hybrid surface modification strategy combining carburizing and surface ultrasonic nanotechnology (SUNT) is developed in the present work. The synergistic effects of the combined t...

Multi-objective optimization of TC4/UHMWPE fiber metal laminates for enhanced ballistic performance under fragment impact

This study developed a multi-objective optimization framework for TC4/UHMWPE fiber metal laminates to improve the ballistic limit (V50) and specific energy absorption (SEA) simultaneously. A validated finite element model was first established to predict V50 and SEA and to genera...

Probabilistic transient stability assessment of power systems with renewable energy using a bounded-Transformer embedding fault severity rules

The increasing penetration of renewable energy introduces significant uncertainty into modern power systems, posing an unpredictable challenge to their stable operation. However, conventional transient stability assessment methods only provide a deterministic result, ignoring the...

An Optical Tracking‐Based Robot‐Assisted System for Spinal Fixation Rod Bending

ABSTRACT Background In spinal pedicle screw‐rod fixation, rod contouring quality influences insertion ease, construct stability, and corrective effect. Conventional bending relies on surgeon experience and is limited by insufficient support, repeated adjustment, and inefficient w...

Deep learning predicts gene rearrangements from histopathology in large B-cell lymphoma

Abstract Large B-cell lymphomas are molecularly heterogeneous mature B-cell neoplasms in which assessment of MYC , BCL2 , and BCL6 rearrangement status contributes to integrated diagnosis, risk stratification, and treatment planning. Fluorescence in situ hybridization (FISH) rema...

A Survey of Optimal Resource Allocation in Semantic Communications: Technologies, Development Trends, and Applications

As an emerging communication paradigm, semantic communications (SC) focuses on the semantic content of information transmission, aiming to achieve more efficient and accurate information interaction. However, SC requires an in-depth analysis of information semantics and accurate...