Harbin University of Science and Technology

Research on Disturbance Control of Electro-Hydraulic Servo Systems Based on Fractional-Order Sliding Mode Control

To improve the disturbance rejection performance of valve-controlled cylinder electro-hydraulic servo systems under external disturbances and load variations, this paper proposes a fractional-order sliding mode control (FOSMC) strategy. A system model with dual-inertia compensati...

Safety evaluation of new energy three-electric systems using enhanced physics-informed neural networks

Accurate safety-state measurement of the three-electric system in new energy vehicles is essential for ensuring reliable and secure operation. This paper proposes an artificial-intelligence-assisted safety measurement framework that integrates a searchable encryption mechanism wi...

Enhanced elastocaloric performance and cyclic stability of elastocaloric effect in Mn and Y co-doped all-d-metal Co-V-Ti Heusler alloy

The all- d -metal Co-V-Ti Heusler alloy, due to its excellent mechanical and elastocaloric properties, shows great application potential in the field of elastocaloric refrigeration. However, the cyclic stability of elastocaloric effect (eCE) of such alloys still needs to be furth...

DASAN-based cross-working-condition fault diagnosis for rolling bearings

To address the insufficient discriminability problems of fault features extracted from rolling bearing data under complex operating conditions and low fault diagnosis accuracies caused by the lack of labeled data in the target domain, this study proposes a cross-operating-conditi...

Oil film morphology control of hydrostatic thrust bearing based on friction-pair composite material distribution

Purpose This study aims to suppress oil film nonuniformity and instability in a double-rectangular-cavity hydrostatic thrust bearing under high-speed and heavy-load conditions by regulating the thermal deformation of the friction pair. Design/methodology/approach A thermal-fluid-...

Interaction‐Matched Protonated Aminopyridine Additives for Highly Reversible Aqueous Zinc Metal Anodes and Zn–I 2 Batteries

ABSTRACT In aqueous zinc‐ion batteries, electrolyte additives stabilize Zn anodes through interfacial adsorption, suppressing corrosion and parasitic reactions while regulating Zn deposition. However, although enhanced zincophilicity and hydrophobicity improve interfacial protect...

Real-time internal state estimation in composite photocuring via coupled heat-transfer modeling and Bayesian-optimized adaptive extended Kalman filtering

Ultraviolet (UV) photocuring of composite materials involves strongly coupled optical, thermal, and chemical processes, making transient internal temperature and degree of cure difficult to measure directly during processing. This study develops an online internal-state estimatio...

Multiscale‐Guided Molecular Engineering of Aromatic Charge‐Trap Epoxy Dielectrics for Synergistic Electro–Hygro–Thermal Resilience

ABSTRACT Escalating demands of modern high‐voltage power grids necessitate epoxy‐based electrical insulation materials with simultaneously enhanced dielectric withstand capability, moisture resistance, and thermal durability. A multiscale molecular design strategy integrating fir...

KLDD: Underwater image enhancement via KL-divergence-driven color cast correction and multistage enhancement fusion

Underwater images often suffer from severe color casts, nonuniform illumination, reduced contrast, and blurred details because of wavelength-dependent absorption and light scattering. To address these degradations, this study proposes KLDD, an underwater image enhancement method...

Oxygen vacancy tungsten oxide modified carbon cloth anode for enhancing microbial fuel cell performance

To mitigate the adverse effects of binders in the anode of microbial fuel cells (MFCs) and to enhance the performance of WO 3 anodes, the WO 3-X /CC, serving as a high-performance anode for MFCs, was developed using magnetron sputtering to apply tungsten oxide onto carbon cloth....

Competitive Anion Coordination Modulates Anode Interfacial Chemistry for Wide‐Temperature Sodium Batteries

ABSTRACT Sodium‐ion batteries (SIBs) offer a promising, cost‐effective alternative for large‐scale energy storage due to the abundance of sodium. However, their practical deployment is challenged by sluggish interfacial kinetics and unstable interphase formation, which severely l...

Cross-and-Capture: A Dual-Ligand PAMAM Nanocarrier for Sequential BBB Penetration and Ischemic Lesion Retention of Breviscapine

The clinical management of ischemic stroke is severely constrained by the blood–brain barrier (BBB), which restricts therapeutic drug access to the brain parenchyma, and the rapid systemic clearance of neuroprotective agents such as breviscapine (Bre). To overcome this dual chall...

Evaluation of axial stress‐axial strain behavior of high‐strength fiber‐reinforced lightweight aggregate concrete ( HSFRLC ) confined with spiral stirrups under axial compression

Abstract The axial stress–strain models of confined high‐strength fiber‐reinforced lightweight concrete (HSFRLC) were important key inputs for analytical programs to predict the full‐range loading deformation of confined HSLC and HSFRLC. The descending branch of the axial stress‐...

Theoretical Study on the Reaction Mechanism of Closed-Loop Recyclability of a Biomass-Derived Epoxy Resin Thermoset by Methanolysis

Abstract Epoxy resin thermosets (ERTs) represent a significant category of polymeric materials. However, ERTs have high cross-linking and are difficult to decompose, leading to unacceptable environmental pollution. It is evident that there is a critical need for the development o...

Effect of gadolinium on microstructure characteristics and strengthening mechanisms of Mg(‐Gd)‐Nd‐Zn‐Zr alloys by hot treatment

In this study, a quantitative analysis was performed to assess the respective contributions of gadolinium (Gd) addition and heat treatment to the strengthening of the Mg–3Nd–1Zn–0.5Zr alloy. The results indicate that gadolinium addition not only refines the grain structure but al...

Uniform Rotundity Properties of Orlicz Function Spaces Endowed With Generalized s ‐Norms

ABSTRACT This paper presents the necessary and sufficient conditions for the uniform rotundity of Orlicz function spaces equipped with the ‐norm. The results obtained unify, complete, and expand the characterization of uniform rotundity for Orlicz spaces. For the cases of the Lux...

Improving the High-Temperature Mechanical Properties and DC Electrical Properties of Polypropylene Insulation Materials through Grafting and Cross-Linking Modification

Abstract Thermoplastic polypropylene (PP) has been widely regarded as a promising alternative to cross-linked polyethylene (XLPE) for cable insulation owing to its excellent recyclability. However, PP exhibits poor mechanical toughness at room temperature, and blending with low-m...

Synergistic Electrocatalytic Hydrogen Evolution and Peroxymonosulfate Activation over CoS/CoTiO3 Nanocomposites for Levofloxacin Degradation

Abstract The global energy crisis and escalating water pollution necessitate the development of sustainable technologies that integrate environmental remediation with clean energy production. Therefore, if key technologies for hydrogen production from organic pollutant waste liqu...

Direct Yaw Moment Control of Distributed-Drive Electric Vehicles via Multi-Agent Full-Order Terminal Sliding Mode

To improve the yaw-stability tracking accuracy and torque smoothness of distributed-drive electric vehicles (DDEVs) under high-speed double-lane-change maneuvers and crosswind disturbances, this paper proposes a multi-agent-system (MAS)-based direct yaw moment control (DYC) metho...

A Bioinspired Soft Manipulator Based on Wave Spring Structure: Design and Control

Architectured soft structures have unlocked new possibilities for designing continuum manipulators with tailored mechanical performance. This work introduces a bioinspired soft manipulator based on modular wave spring units, leveraging the high elasticity of wave spring structure...