Ningbo University of Technology

Thermodynamic characteristics and structural optimization of pure hydrogen vortex tubes: An experimental and numerical investigation

Efficient thermal management of high-pressure hydrogen (H 2 ) is a critical bottleneck in the global hydrogen energy infrastructure. The Ranque-Hilsch Vortex Tube (RHVT), possessing intrinsic safety with zero moving parts, presents an ideal cooling solution for explosive H 2 envi...

God-Nature and the Walpurgisnacht Motif in Goethe’s Faust: Religious Continuity and Contestation in Literary Form

Goethe’s three Walpurgisnacht scenes in Faust are usually separated as demonic spectacle, satirical intermezzo, and classical phantasmagoria. Read together, they form a poetic sequence interpreted through Goethe’s conception of God-Nature (Gott-Natur), a non-systematic conception...

Surface activated Ni7Fe3 alloy foam as a self-supported anode for anion exchange membrane water electrolysis

Self-supported electrodes (SSEs) offer a simplified route toward ionomer-free catalyst fabrication for anion exchange membrane water electrolyzer (AEMWE), but most reported systems rely on additional catalyst growth or deposition on porous metallic supports. Here, a commercial Ni...

Grain Boundary-Confined Lead Halides Mitigate Post-Treatment Surface Lattice Distortion in Wide-Bandgap Perovskites for Efficient Tandem Solar Cells

Abstract Wide-bandgap (WBG) perovskite solar cells (PSCs) have attracted increasing attention due to their essential role in high-efficiency tandem architectures. Post-treatment strategies are commonly employed to improve WBG perovskite films by modifying surface states and enhan...

Velocity adaptive preview path tracking control for autonomous vehicles using deep reinforcement learning with Lyapunov function-based reward shaping

Traditional rule-based path tracking controllers of autonomous vehicles (AVs) often struggle with nonlinear vehicle dynamics, parameter tuning, and changes in road conditions. Learning-based methods partly address these issues, but remain limited in adapting to velocity changes,...

Serial space-folded acoustic metamaterials for hairdryer noise reduction

Existing noise control methods for hairdryers typically require modifications to the internal structure or impeller, whereas conventional silencers may increase device volume and reduce ventilation efficiency. To address these limitations, we propose a serial space-folded acousti...

Pressure‐Activated and Retained Blue Emission in Melamine Through Hydrogen‐Bond and Packing Regulation

ABSTRACT Pressure provides a direct way to regulate molecular packing and excited‐state relaxation in organic crystals, but retaining pressure‐induced emission after decompression remains challenging. Here, we report pressure‐activated and retained blue emission in melamine (MA),...

Experimental investigation of inlet-temperature effects on energy separation in a Ranque–Hilsch vortex tube under pressure–temperature coupling

Inlet temperature directly determines the thermodynamic state of the working gas in a Ranque–Hilsch vortex tube (RHVT), but its role in pressure-driven energy separation remains insufficiently clarified, particularly under coupled variations in inlet pressure and cold mass fracti...

High-sensitivity deep shortwave infrared organic photodetectors enabled by selenium-integrated quinoidal molecular semiconductor

Developing organic photodetectors (OPDs) that can detect in deep shortwave infrared (deep-SWIR) region (1.2–1.6 μm) is technologically important. Yet, the performance of the state-of-the-art deep-SWIR OPDs remains substantially limited. Herein, we report a selenium-integrated qui...

Arylamide-Ligated Scandium Bis(alkyl) Complexes in the Ring-Opening Polymerization of Trimethylene Carbonate: Comparing the Reactivity of Mono- Versus Dinuclear Complexes

Abstract Compared with mononuclear catalysts, dinuclear catalysts often exhibit synergistic effects between their two metal centers, offering unique advantages in enhancing catalytic performance. In this work, an alkyl elimination strategy was employed to synthesize novel arylami...

A Comparative Study of Lexical Inferencing During Text Reading: Evidence from Chinese–English–Japanese Trilinguals

Lexical inferencing (LIF) draws on multiple knowledge sources (KSs), but little is known about how the same multilingual readers report using these sources across different reading tasks. This exploratory study examined 31 Chinese–English–Japanese trilinguals who completed think-...

Reinforcement learning-assisted walrus optimization algorithm for multi-equipment optimization in industrial cooling water systems

In industrial refrigeration plant cooling water systems, chillers, cooling water pumps, and cooling towers are strongly coupled, making independent equipment regulation insufficient for global optimality. Existing chiller plant control studies often insufficiently characterize cr...

Design and analysis of an underwater vectored thruster employing spherical actuator

Underwater vectored thruster is an important development direction for the propulsion system of autonomous underwater vehicles. However, conventional vectored thruster systems generally consist of multiple actuators and complex transmission structures, which results in large syst...

Polymerization-Induced Self-Stabilized High Internal Phase Emulsions via Interfacial Poly(thioacetal) Formation

Abstract A polymerization-induced self-stabilization strategy is reported for the fabrication of degradable polymer foams without external surfactants or particulate stabilizers. Specifically, interfacial polycondensation between glyoxal and 1,6-hexanedithiol generates amphiphili...

Event-based reverse-flow intermittency analysis over a double-protuberance lifting-surface section

Near-stall flow separation over lifting surfaces is strongly unsteady and may affect hydrodynamic efficiency, load fluctuation, and maneuvering reliability in marine engineering applications. This study proposes an event-based reverse-flow area analysis to quantify flow-separatio...

Effect of bond performance on flexural crack width of SCBSB concrete beam

Stainless steel-clad bimetallic steel bars (SCBSB) are an attractive choice for durable reinforced concrete (RC) structures in aggressive environments, where controlling crack width is critical to preventing chloride ingress and exploiting the cladding’s corrosion resistance. How...

Ultrasonic Vibration Assisted Laser Processing: A Hybrid Paradigm for Extreme Surface Enhancement

ABSTRACT Traditional laser processing techniques offer many advantages, but they often encounter limitations such as heat‐affected zones, recast layers, residual tensile stresses, and poor surface finish. The integration of ultrasonic vibration (UV) presents a promising hybrid ap...

Psychometric utility-preserving embedding debiasing (PUPD): A dynamic framework for bias-aware and culturally inclusive language models

Abstract Psychometric Utility-Preserving Embedding Debiasing (PUPD) is proposed as a dynamic framework for bias-aware and culturally inclusive language models that explicitly balances bias mitigation with semantic utility preservation. Conventional debiasing methods often disrupt...

Reversible Stress Whitening in PTMG / PLLA ‐Based Polyurethanes

ABSTRACT Reversible stress whitening was observed in polymers such as natural rubber and is generally attributed to strain‐induced crystallization (SIC). Under mechanical deformation, polymer chains become highly oriented, leading to nonequilibrium crystallization, which can subs...

Venturi-effect-inspired design of TPMS structures and their convective heat transfer characteristics

Triply periodic minimal surface (TPMS) lattice structures show great potential for compact heat exchangers and high-heat-flux electronic cooling owing to their high specific surface area, interconnected channels, and high geometric design flexibility. However, a single TPMS topol...