Shandong University

Mechanically Robust and Underwater‐Stable Hydrogels via Synergistic Molecular Locking and Topological Entanglement

ABSTRACT Highly entangled hydrogels typically suffer from swelling‐induced dilution of chain entanglements in aqueous environments, leading to compromised energy dissipation and mechanical integrity. Herein, we report an underwater‐stable and highly entangled poly(acrylamide–acry...

The Effects of Secondary Air Supply on the In-Furnace Combustion Characteristics of Briquettes with Different Moisture Contents

This study investigates the effects of secondary air supply on the combustion characteristics of briquettes with different moisture contents using a coupled FLIC–Fluent framework. FLIC was employed to simulate drying, pyrolysis, volatile release, and char oxidation in the fixed b...

A strategy for mitigating mechanical anisotropy of GWZ932 Mg alloy via cryogenic-annealing cyclic treatment

Mechanical anisotropy remains a fundamental barrier to the widespread applications of Mg alloys. In this study, a cryogenic-annealing cyclic (CAC) process was proposed to mitigate the mechanical anisotropy of the GWZ932 Mg alloy through multi-scale microstructural modulation. Cry...

Reallocating fossil subsidies via social assistance reduces poverty and preserves emissions cuts

Fossil fuel subsidies are widespread, regressive, and environmentally costly, yet abrupt removal can raise poverty. To identify a practical reform pathway, we evaluate the effectiveness of compensatory policies grounded in existing national social protection systems. We develop a...

Achieving breakthrough high strength in AZ31 magnesium alloy bar via a novel single-pass extrusion process

AZ31 magnesium alloy generally suffers from insufficient room-temperature strength. Meanwhile, conventional processing routes offer limited strengthening efficiency, and severe plastic deformation (SPD) processes face difficulties in industrial upscaling. To address these bottlen...

Why and when customer-related social stressors impair service performance: A conservation of resources perspective

Building on the conservation of resources theory, we investigate how customer-related social stressors impact service performance among hospitality employees. To explore this, we gathered data from 350 supervisor-employee pairs across twelve hotels in China through a three-wave s...

A systematic benchmark of batch effect correction methods for spatial transcriptomics

Spatial transcriptomics enables high-resolution profiling of gene expression within tissue slices, but its reliability is often compromised by technical batch effects that obscure biological signals and hinder data integration. A systematic approach to define, evaluate, and corre...

Ferroelectric Thin‑Film Polarization‑Sensitive Photodetector Based on the Plasmon‑Enhanced Bulk Photovoltaic Effect

ABSTRACT Polarization‑sensitive photodetection is critical for advanced imaging, optical communication, and medical diagnosis technologies. Although detectors based on low‐symmetry metasurfaces or two‐dimensional materials have been widely investigated, they generally suffer from...

Sediment Transport and Wall-Collision Dynamics in a Cylindrical Asteroid-Shaped Drip Emitter Under Variable Hydraulic Conditions

How suspended grains traverse energy-dissipating micro-passages determines whether sediment-laden water can be used without rapid emitter deterioration. A novel cylindrical asteroid-shaped drip emitter was investigated through laboratory anti-clogging tests and two-way coupled co...

The critical role of endothelial cells: Complications and management – A narrative review

Endothelial cells (ECs) form a selective barrier between blood vessels and surrounding tissues. They tightly regulate the passage of substances through blood vessels. ECs are crucial for regulating immunological responses, managing blood flow, and maintaining vascular stability....

Temperature effects on the evolution of quantum vortices in superfluid helium under thermal counterflow

The transient establishment of the vortex field in He II thermal counterflow is governed by the coupled effects of local vortex production-decay and spatial redistribution. A one-dimensional numerical framework based on the two-fluid model and Vinen’s equation is used to investig...

Equal-Proportion Organic–Inorganic-Mixed Cation Perovskite Single Crystalline Heterojunctions Enable High-Performance X-ray Detection

Abstract Metal halide perovskite single crystal (SC) heterojunctions have attracted great attention in X-ray detection owing to their merits of current rectification and surface-defect passivation. However, the exploration of innovative heterostructures with superior X-ray detect...

HBr-Catalyzed Construction of Sulfur-Containing Heterocycles via Difunctionalization of Alkenes

Abstract Sulfur-containing heterocycles are important chemical entities and key structural motifs in many biologically active molecules, representing valuable but synthetically challenging building blocks. Herein, we report a new method for the construction of sulfur-containing h...

Thermally Activated Delayed Fluorescence (TADF) in Coinage Metal Nanoclusters: Bridging Molecular and Nanoscopic Photophysics

Abstract Thermally activated delayed fluorescence (TADF) in coinage metal nanoclusters (CMNCs) has introduced new paradigms in the design of optoelectronic materials, uniting atomic precision with tunable quantum and photophysical properties. This review provides a critical and c...

Pathfinder-Based Analysis of Capacity Matching and Bottleneck Migration Along Evacuation Chains in Underground Commercial Complexes

Underground commercial complexes form a multi-stage evacuation chain linking horizontal transfer, vertical discharge, and exit allocation. Pathfinder simulations examined occupant-profile composition, stair width, corridor configuration, and pedestrian diversion through single-fa...

Nash Equilibrium Seeking for Feedforward Nonlinear Multi‐Agent Systems Under Event‐Triggered Communication

ABSTRACT This paper investigates the distributed Nash equilibrium seeking problem for a class of feedforward nonlinear multi‐agent systems under event‐triggered communication. In contrast to the existing literature, the systems under investigation exhibit time‐varying characteris...

Shrub expansion drives coupled declines in wetland particulate and mineral-associated organic carbon stability

Increasing shrub encroachment into wetlands has been shown to reduce the stability of mineral-associated organic carbon (MAOC), yet its influence on particulate organic carbon (POC) stability remains unclear. To determine whether shrub expansion drives coupled declines in POC and...

A study on the mechanism by which outdoor sports embodied experiences affect young people's sense of life meaning

Under the dual influence of digital technology and the fast-paced modern lifestyle, outdoor sports have gradually become an important way to alleviate the anxiety of young people. This study adopts a mixed research method to explore the impact of different types of outdoor sports...

Bond-slip constitutive model for the strand-concrete interface based on pull-out tests

Bond transfer at the strand–concrete interface governs the anchorage behavior of pretensioned concrete structures. Monotonic central pull-out tests were conducted on 39 specimens containing 15.2 mm seven-wire strands to investigate the effects of effective anchorage length, trans...

Engineering ovarian asymmetric mechanical niches in a dual-layer microcavity array enhances mouse secondary follicle development and oocyte competence

With global population aging and declining fertility rates, the preservation of reproductive health has become an important biomedical challenge. In vitro follicle culture, especially secondary follicle culture, represents a promising strategy for advancing fertility preservation...