Dalian University of Technology

Influence of Lamella Structure on Mechanical Properties and Corrosion Resistance of AlCoCrFeNi2.1 Eutectic High-Entropy Alloy Fabricated by Laser-Based Directed Energy Deposition

Laser-based directed energy deposition (DED-LB) was employed to fabricate AlCoCrFeNi2.1 eutectic high-entropy alloy at laser powers of 1400 W, 1600 W, and 1800 W. All fabricated specimens exhibited a homogeneous alternating FCC and BCC dual-phase microstructure. The FCC lamellae...

Dynamic analysis and optimal design of a pendulum rotary tuned mass damper for bidirectional control of rotational and translational vibrations

This paper proposes a novel pendulum rotary tuned mass damper (PRTMD), which primarily consists of a mass sphere, a rigid rod, a rigid ring, and a torsional spring. The proposed damper can simultaneously provide both rotational and translational control capabilities to the contro...

Helical Anchor Pullout Using a Semifluidized Bounding Surface Plasticity Model

Abstract The ultimate vertical pullout capacity of single-helix anchors in sand was explored using the coupled Eulerian–Lagrangian (CEL) technique to account for large deformation processes. A semifluidized bounding surface plasticity model was incorporated in a novel manner to i...

A thermally integrated Carnot battery incorporating a novel dual-pressure evaporation cycle for deep utilization of waste heat: Parameter analysis and working-fluid optimization

The majority of contemporary thermally integrated Carnot batteries have inadequate waste heat use during the discharging process. Leveraging the integrated heat exchange capability of the multi-stream heat exchanger, this study proposes a thermally integrated Carnot battery incor...

Determining the Partial Molar Volume of the Hydrated Electron from First-Principles Simulated Solution Volumes

Abstract The microscopic solvation structure of the hydrated electron remains difficult to characterize directly despite extensive experimental and theoretical efforts. The partial molar volume,V¯e−, provides an indirect thermodynamic probe, but quantitative agreement with experi...

Rub-impact fault diagnosis for rotating blade using covariance-reconstructed MVDR and BTT data

Blade Tip Timing (BTT) is a crucial technique for monitoring the health status of rotating blades in aero-engines. However, the inherently severe non-uniform under-sampling characteristics of BTT signals make the extraction of early fault features highly challenging. To address t...

Ultrafast Core–Shell Spin Transfer and Spin-Selective Relaxation in an Endohedral Cage Cluster

Abstract Ultrafast optical control of spin states offers a promising route to molecular-scale magnetic manipulation, yet the mechanisms of laser-driven spin dynamics in atomically precise clusters remain poorly understood. Here, we investigate the ultrafast spin dynamics of the e...

Zn-Modified MoS2 Catalyst for Efficient CO2 Hydrogenation to CH3OH

Abstract Hydrogenation of carbon dioxide (CO2) to methanol (CH3OH) using hydrogen produced from renewable energy sources is a promising pathway for carbon recycling and energy storage. Molybdenum disulfide (MoS2), with its typical layered structure, holds significant industrial p...

The choice of product strategy and marketing strategy for serial crowdfunders

Purpose Serial crowdfunding is a common phenomenon, and serial crowdfunders face multiple decisions. Most crowdfunding platforms implement one-time payments, while some platforms implement deferred payments. This paper explores the product and marketing strategies of serial crowd...

GPU-accelerated parallel strategies for multiscale isogeometric topology optimization

In multiscale isogeometric topology optimization (ITO), the highly coupled cross-scale sensitivity analysis and the wide support of NURBS basis functions constitute the dominant computational bottleneck. To address these computational bottlenecks, this paper proposes a Decoupled...

Manufacturable topology optimization for thin-walled cross-sectional design

Thin-walled cross-sections are widely used in lightweight engineering structures because of their excellent stiffness-to-weight and torsional resistance characteristics. However, topology optimization of thin-walled cross-sections remains challenging because conventional density-...

Integrating fuzzy neural networks and elastic weight consolidation for continual learning under non-stationary data streams

Neuro-fuzzy systems combine neural network learning with fuzzy logic to robustly represent qualitative, uncertain, and imprecise knowledge, making them especially effective for data mining and knowledge discovery. With ongoing digitalization, the volume and velocity of data strea...

Coordinated planning of hydrogen refuelling stations and distribution networks considering two-phase hydrogen storage and carbon emission flow

Hydrogen refuelling stations (HRSs) are essential infrastructure for hydrogen-powered transportation. However, their planning faces coupled challenges arising from high-pressure hydrogen storage risks and the indirect carbon emissions caused by grid-connected electrolysis. To thi...

Unraveling the Mechanism of ACQ-to-AIE Transformation of 3,5-Diacetyl-1,4-dihydro-2,6-lutidine: Dark-State Suppression via Hydrogen-Bond-Mediated Molecular Packing

Abstract Aggregation-induced emission (AIE) materials have attracted broad interest due to their efficient solid-state luminescence, yet a direct and predictable conversion of aggregation-caused quenching (ACQ) molecules into AIE systems remains a significant challenge. Recent ex...

Fixed‐Time Disturbance Attenuation Formation Control for Nonholonomic Mobile Robots With Uncertain Sliding

ABSTRACT In this article, a fixed‐time formation control strategy that combines curvature tracking method is proposed for multiple nonholonomic mobile robots with uncertain sliding. Considering the skidding and slipping, a curvature tracking motion law is derived by sorting out t...

Technology Push or Demand Pull? Supply-Chain AI Spillovers and the Quality of Green Innovation Toward Sustainable Production in Chinese Listed Firms

Artificial intelligence (AI) diffuses beyond adopting firms into the wider production network, yet the direction and quality of these spillovers remain underexplored, an omission that matters because only high-quality green innovation advances genuine sustainable transformation....

Photoelectrocatalytic bromolactonization with NaBr as the bromine source coupled with hydrogen evolution

We report a mild and efficient photoelectrochemical (PEC) synthetic strategy for the construction of isobenzofuranone skeletons via bromolactonization using NaBr as the bromine source. This transformation proceeds in the absence of exogenous oxidants and additional catalysts, del...

RobustSCI: Beyond reconstruction to restoration for snapshot compressive imaging under real-world degradations

Deep learning has greatly advanced video Snapshot Compressive Imaging (SCI), but most existing methods are developed for reconstructing videos from relatively clean or idealized compressive measurements. In practical capture, motion, low illumination, and sensor imperfections can...

Experimental study on artificial marine clay: Preparation and structural characteristics

Laboratory testing is a fundamental approach in marine geotechnical engineering; however, obtaining undisturbed submarine deposits remains technically challenging and economically costly. Therefore, developing effective methods to simulate marine clay under controlled laboratory...

Information-theoretic development of a finite-wavelength-corrected ground-motion intensity measure for underground structures

The appropriate selection of ground-motion intensity measures (IMs) directly affects the reliability of probabilistic seismic demand models and fragility assessments for underground structures. To address the limitations of existing studies, which have primarily focused on screen...