Tianjin Chengjian University

Defect Dipole-Piezopolarization Coupling Directs Charge Separation in CdS Photoanodes for Water Splitting

Abstract Conventional CdS-based photoanodes exhibit limited intrinsic polarization and severe carrier recombination, which hinder the full utilization of piezopolarization electric fields for charge separation in piezo-photoelectrocatalytic (piezo-PEC) water splitting, thus restr...

Adhesion Dynamics of Ulva -Diatom Biofilms on Mortar Surfaces in Dynamic Marine Environments and Their Mechanistic Roles in Substrate Performance Deterioration

Abstract Considering that current research on biocorrosive building materials is predominantly conducted through field exposure in marine environments or static laboratory cultivation, field tests struggle to achieve precise quantification of individual biological species’ effect...

Real-Time Physical-to-Virtual Scene Reconstruction for Dynamic Manufacturing Systems via Semantic—Spatial Mapping

Real-time reconstruction of virtual scenes in response to changing physical conditions remains a challenge in manufacturing digital-twin systems. During manufacturing operations, changes in object positions, orientations, and spatial arrangements require the virtual scene to be u...

Mechanical performance of 4D-printed honeycombs with various Poisson’s ratios under quasi-static and low-velocity compression

Four-dimensional (4D) printing provides a promising route for prototyping reusable energy-absorbing metamaterials that can recover their geometry after large deformation. However, the cyclic performance of 4D-printed shape-memory honeycombs remains governed by topology, loading d...

Structural performance of offshore wind turbines under wind and seafloor ground motions using a coupled seismic-aerodynamic analysis method

This study proposes a fully coupled seismic-aerodynamic analysis method of offshore wind turbines (OWT) through the modular coupling and bidirectional data exchange, which integrates synthesized seafloor ground motions, steel damage evolution model, and soil-structure interaction...

Effects of marine environmental factors on wind–wave responses and fatigue damage of jacket offshore wind turbines

Assessing the effects of marine environmental factors on the dynamic responses and fatigue performance of offshore wind turbines is essential for ensuring their long-term operational safety. This study investigates a four-pile jacket offshore wind turbine founded in clay and deve...

KOH-Activated Iron-Modified Corn Straw Biochar for Nitrate Removal: Preparation, Adsorption Performance, and Mechanism

Nitrate contamination of groundwater requires low-cost adsorbents with strong affinity for anionic species. This study developed an iron-modified corn straw biochar (Fe-BC) by coupling KOH activation with FeCl3 impregnation and secondary pyrolysis, thereby integrating a porous ca...

Recent advances of non-noble metal catalysts for efficient water electrolysis: types of water reactors, reaction mechanisms, and catalyst categories

Electrocatalytic water splitting offers a sustainable pathway for hydrogen production, yet the high cost and sluggish kinetics of noble-metal catalysts (e.g., Pt, IrO 2 , and RuO 2 ) severely hinder its commercialization. Recently, non-noble metal electrocatalysts have shown exce...

Pyrolysis and Pyrolysis Reoxidation Combustion Characteristics of Lignite

Coal, as the main energy source for building heating in northern cities of China, features large reserves, low cost, and high stability in heat supply. Low-temperature pyrolysis reactions are prone to occur within the coal pile; the coal after low-temperature pyrolysis is more pr...

Association between low-level geometric features of central gaze-guiding patterns and SSVEP responses in mixed reality head-mounted display environments

This study investigated the correlation between the low-order geometric properties of centrally fixated guide patterns and steady-state visual evoked potential (SSVEP) responses in a mixed reality (MR) head-mounted display environment. An MR-SSVEP experimental environment was est...

Interaction effects and load-oriented scheduling of multiple actuators in a gas engine-driven VRF system under heating condition

This study investigates the interactions among the liquid injection cooling expansion valve (LICV), hot gas bypass expansion valve (HGBV), and engine speed in a gas-engine-driven variable refrigerant flow system, with the aim of improving heating performance and primary energy ef...

Energy-based analysis and disturbance rejection control of the distributed parameter rope under parafoil traction

Residual modes of a distributed parameter rope induce control spillover and observation spillover, which reduce the closed-loop stability margin and may further cause vibration instability. To address this problem, this paper develops an energy-based analysis and observer-based d...

A Scalable Low-Cost Epoxy-Based Porous Coating for High-Performance Radiative Cooling Prepared via a Pickering High-Internal-Phase-Emulsion Approach

Passive daytime radiative cooling (PDRC) technology with high solar reflectance and high infrared emissivity has been increasingly applied in green buildings. However, current PDRC designs are either high-cost or require additional multi-step fabrication processes, and both facto...

Performance and Microstructural Characteristics of Cement-Based Grouting Materials Modified with Fly Ash and Corrosion-Control Admixtures

Grouting materials used in water-rich and chloride-exposed environments require adequate workability, mechanical performance, and durability. To optimize the formulation, a series of orthogonal tests was conducted to assess how fly ash (10–30%), rust inhibitor (1–3%), and anti-co...

Spatial typology and differentiated conservation pathways of trade-oriented ancient towns along the Beijing–Hangzhou Grand Canal

Abstract This study examines 52 trade-oriented ancient towns along the Beijing–Hangzhou Grand Canal, combining GIS analysis, morphological indicators, and space syntax in a composite model classified via PCA and K-means clustering. Towns cluster significantly along the canal (NNI...

Integrated Risk Assessment of Landfill Flowslides: Sensitivity Analysis of the Initiation Mechanism and Hazard Potential

Abstract Numerous landfill flowslide disasters have occurred globally, posing a significant threat to the environment and human lives and property. The progressive evolution of flowslides, encompassing both the slope failure and postfailure motion stages, is influenced by waste p...

Evaluation of Aquaporin-Incorporated Forward Osmosis Membrane and Biofilm Carrier Materials in a Novel Osmotic Membrane Bioreactor for Low-Temperature Rural Sewage Treatment

Transforming traditional membrane bioreactors (MBRs) into forward osmosis membrane bioreactors (OMBRs) is a highly challenging yet promising technological upgrade. Although both combine biological treatment and membrane separation, their core driving forces and operating mechanis...