Harbin Engineering University

Passive Metasurface Tweezers for Multi‐Scale Orbital Transport and Trapping on Elastic Plates

ABSTRACT Acoustic manipulation on solid surfacesis often constrained by limited wave‐field reconfigurability and reliance on complex active excitation, hindering the simultaneous realization of particle confinement and controlled rotation. Here, we present a passive, subwavelengt...

Experimental study on short-term statistical distributions and local spatial variability of deep-water short-crested irregular waves

Based on physical experiments of deep-water short-crested irregular waves, this study investigates the effects of wave parameters on short-term statistical distributions and local spatial variability. A target wave field was generated using a JONSWAP spectrum and a cosine-type di...

Flow-field evolution and hydrodynamic resistance during water exit of a foldable-wing vehicle

The water-exit process of foldable-wing unmanned aerial-underwater vehicles (F-UAUVs) involves strongly unsteady free-surface deformation, structural drainage, and rapidly varying hydrodynamic loading. These effects become particularly complex when realistic internal structures a...

A fast prediction approach for airfoil flow field based on the deep neural network framework

A rapid aerodynamic prediction framework, termed ParaAero-Net, is proposed for low-Mach-number two-dimensional airfoils under small-sample conditions. Unlike conventional data-driven approaches that focus only on either flow-field reconstruction or aerodynamic coefficient predict...

Bollobás–Nikiforov conjecture holds asymptotically almost surely

Bollobás and Nikiforov (J. Combin. Theory Ser. B. 97 (2007) 859-865) conjectured that for a graph G that is not complete, with e ( G ) edges and the clique number ω ( G ) , then λ 1 2 + λ 2 2 ≤ 2 e ( G ) 1 − 1 ω ( G ) , where λ 1 and λ 2 are the largest and the second largest eig...

A collaborative navigation method based on a delay-aware factor graph

Abstract Aiming at the problem of degradation in navigation accuracy caused by communication delay during cooperative interaction of unmanned aerial vehicle (UAV) formations, a distributed cooperative navigation algorithm based on a delay-aware factor graph is proposed. First, a...

Effect of Cu / Mn Content and Homogenization Modes on ALTEK Alloys Strip Microstructure and Properties

Abstract This paper presents the results of a comprehensive study on the microstructure and physical-mechanical properties of strips produced from promising ALTEK system aluminum alloys (2Cu1.5Mn and 3Cu2Mn compositions) in a full thermomechanical processing cycle, including cold...

From knowledge-oriented leadership to triple-bottom-line outcomes: the mediating role of sustainable development goals, knowledge-worker responsibility, and competence

Purpose Drawing on the knowledge- and resource-based view, this study seeks to determine how knowledge-oriented leadership contributes to Sustainable Performance across all dimensions of the triple bottom line, considering the mediating effects of the Sustainable Development Goal...

Synthesis Conditions and Electrochemical Performance of Lithium Yttrium Titanate(LYTO) for Lithium‐Ion Battery Anodes

ABSTRACT Graphite remains the most widely used commercial anode material for lithium‐ion batteries, but its performance is constrained by inherent drawbacks such as limited rate capability, low reversible capacity, and sluggish electrochemical kinetics. Although numerous titanium...

Multidimensional climate exposure and corporate green innovation

Climate exposure takes different forms, and its relationship with green innovation may be obscured by aggregate measures. Using MD&A disclosures from firms listed in Shanghai and Shenzhen between 2003 and 2023, we construct annual measures of physical, regulatory, and opportunity...

Low-Profile Anisotropic Metasurface Absorber Enabled by N-Port-Network Inverse Design

An N-port-network method is presented for the inverse design of anisotropic metasurface absorbers. Internal discrete ports and four external transverse-electric (TE) and transverse-magnetic (TM) Floquet ports retain angle-dependent reference impedances and co- and cross-polarized...

Neoadjuvant therapy and minimally invasive surgery for pancreatic cancer: current evidence and surgical decision-making

Neoadjuvant therapy (NAT) is standard care for borderline resectable and locally advanced pancreatic cancer (PC). While minimally invasive surgery (MIS) is increasingly utilized post-NAT, surgical decision-making and technical feasibility remain debated. This review evaluates cur...

Hydrodynamic characteristics analysis of underwater compressed gas combined airbag energy storage device

At present, the efficient utilization of renewable energy is a research hotspot worldwide, with the continuous expansion of the development scale of offshore wind energy, wave energy, solar energy and other new energy sources. However, such renewable energy sources have character...

Physical fitness profiles and behavioral correlates among preschoolers in a high-latitude cold region: a cross-sectional study in Heilongjiang, China

Physical fitness during the preschool years is an important indicator of growth, motor development, and early health. However, evidence describing physical fitness profiles among preschool children in cold-climate regions remains limited, particularly regarding how body morpholog...

Novel Stress‐Evolution Model for NaNi 1/3 Fe 1/3 Mn 1/3 O 2 Cathodes: Determining Localized Accumulation and Diffusive Transfer Based on Tension‐Compression Asymmetry

ABSTRACT O3‐NaNi 1/3 Fe 1/3 Mn 1/3 O 2 (NFM) is a promising high‐energy‐density cathode for sodium‐ion batteries. However, the long‐term cycling performance is hindered by particle fracture caused by non‐uniform stress distribution. The mechanisms of non‐mechanical stress accumul...

A Robust Sequential Acoustic Sensing Framework for Shallow-Water Meteorological Monitoring in IoUT

Passive acoustic monitoring of ocean surface wind speed and rainfall faces severe degradation in shallow waters due to multipath propagation and non-meteorological noise interference. To address these challenges within the Internet of Underwater Things (IoUT), this study proposes...

Unravelling the Atomic‐Scale Surface Chemistry for Intrinsically Bright and Stable Luminescence in CdSe Quantum Platelets

Two-dimensional colloidal CdSe quantum platelets (QPLs) represent a promising class of next-generation luminescent materials, yet the atomic-level surface chemistry that governs their optoelectronic properties remains poorly understood. In this study, we combine ligand passivatio...

Synergistic Water‐State Regulation and Network Densification Enable Low‐Loss Fine‐Core Hydrogel Flexible Optical Fibers for Wearable Soft Photonics

ABSTRACT Biological soft photonics shows broad potential in wearable health monitoring. Hydrogel flexible optical fibers (HFOFs) possess significant application potential due to biocompatibility. However, while high water content and multi‐network architectures endow HFOFs with u...

DeCyReM: De-Cycled Residual Memory with Utility-Gated Retrieval for Traffic Flow Forecasting

Accurate traffic-flow forecasting remains challenged by abrupt and irregular states even after dominant periodic patterns are captured. Existing predictors model the resulting difficult errors implicitly through their parameters and cannot explicitly reuse specific historical err...

Rational Sulfur Vacancy Design Enhances the Electrochemical and Nonlinear Optical Properties of V 2 CT x /WS 2

ABSTRACT The concurrent optimization of electrochemical energy storage and third‐order nonlinear optical (NLO) performance within a single material system remains a fundamental challenge. Here, V 2 CT x /WS 2 composites were fabricated via a solvothermal method on carbon cloth su...