Wuyi University

CS 2 Induced Annulation of 2‐Alkynyl Nitroarenes With Indoles: Construction of 2,2‐Disubstituted Indolin‐3‐ones

An efficient CS 2 induced annulation of 2‐alkynyl nitroarenes with indoles for the construction of 2,2‐disubstituted indolin‐3‐ones has been developed. A range of functionalized indolin‐3‐ones were prepared in moderate to good yields from easily available starting materials. This...

A Note on the Drazin Inverse of 2 × 2 Block Triangular Matrices

By using the forward order law for the Drazin inverse of matrix products, we investigate the Drazin inverse of 2×2 block triangular matrices. A necessary and sufficient condition for ABOCD=ADBDOCD is presented. Notably, this condition is expressed exclusively in terms of rank equ...

Reversible Strengthening of Traditional Timber Members with Nano-SiO2-Modified CFRP in High-Humidity Environments

Timber-structure buildings are a common traditional architectural type in China whose value has shifted from residential use toward cultural heritage preservation, historical research, and cultural-tourism exhibition. In subtropical regions such as Fujian and Hunan, these structu...

Post‐Oxidation Integrating Assembly‐Confined Pyrolysis to Boost POD‐Like Activity of Non‐Metal Nanozyme and Engineer Colorimetric Hydrogel for On‐Site Detection of PFAS

Abstract Nanozymes have become attractive candidates for advanced sensors, yet enhancing peroxidase (POD)‐like activity of non‐metal nanozymes with minimized oxidase activity interference and broad‐spectrum recognition capability for per‐ and polyfluoroalkyl substances (PFASs) re...

Risk Assessment of Shield Tunnelling in Mixed Ground Using a Coupled Subjective–Objective Weighting and Fuzzy Set Pair Analysis Model

Shield tunnelling in upper-soft and lower-hard mixed ground is characterised by strong geological heterogeneity and coupled construction risks, including uneven cutterhead loading, face instability, cutter wear and abnormal fluctuations in tunnelling parameters. This study assess...

Linker Chlorination Enhances Xe Adsorption and Xe/Kr Separation in Metal–Organic Frameworks

Abstract Efficient separation of Xe/Kr mixture remains a challenge, due to their chemical inertness and the striking similarity of their physicochemical properties. In this work, the chlorine-decorated metal–organic framework (MOF) of JXNU-24(Cl) and its pristine JXNU-24 are pres...

First Total Syntheses of Both C10 Epimers of Mycenolide A: Stereochemical Assignment and Reassessment of Its Reported Neuroprotective Activity

Abstract Mycenolide A, a marine-derived 5-substituted butenolide, possesses a remote C10 quaternary stereocenter whose absolute configuration was previously unassigned. Herein, we report the first stereodivergent total syntheses of both C10-epimers of mycenolide A in only nine st...

Pmt waveform simulation and reconstruction with conditional diffusion network

Abstract Photomultiplier tubes (PMTs) are widely employed in particle and nuclear physics experiments. The accuracy of PMT waveform reconstruction directly impacts the vertex and energy resolution of detectors. A key challenge arises when multiple photons arrive within a few nano...

Sodium Tetrathionate-Promoted Trisulfurative Annulation of 1,3-Diyne Diols toward Dithieno[3,2-b:2′,3′- d ]thiophenes

Abstract A sodium tetrathionate-promoted trisulfurative annulation of 1,3-diyne diols has been developed for the synthesis of polysubstituted dithieno[3,2-b:2′,3′-d]thiophenes (DTTs) in moderate to good yields. To the best of our knowledge, this represents the first use of sodium...

Atomistic Simulation of Loading Direction-Dependent Brittle-to-Ductile Transition in a ⟨110⟩-Oriented B2-FeAl Nanowire Under Bending

Molecular dynamics simulation was employed to investigate the effect of loading direction on the bending behavior of a B2-FeAl nanowire. The simulations were carried out with different loading directions of [001], [112], [111] and [110] at 300 K. The results show that the FeAl na...

Exercise-based cardiac rehabilitation and health-related quality of life in coronary artery disease: a systematic review and meta-analysis by exercise modality and disease status

Exercise-based cardiac rehabilitation may improve health-related quality of life (HR-QoL) in patients with coronary artery disease (CAD), but whether responses differ by exercise modality and baseline disease status remains uncertain. We searched four English- and Chinese-languag...

Halogen Sources for the Controlled Dihalotrifluoroethoxylation and Dihalogenation of Alkynylsilanes in a Trifluoroethanol Aqueous Solution

Abstract We herein report the diiodotrifluoroethoxylation of alkynylsilanes with NH4I in a trifluoroethanol aqueous solution under mild conditions. This method enables a multicomponent one-pot reaction of diverse trifluoroethoxy-functionalized diiodoalkenes with high regio- and s...

PSEG improves human pose estimation via plug-and-play structural edge guidance

Human pose estimation in dense occlusion suffers from keypoint misdetection and joint misalignment. Existing methods struggle to exploit structural edge constraints owing to the lack of high-quality human edge data and dedicated detectors. We propose PSEG (Plug-and-Play Structura...

Modeling a 5D Hamiltonian conservative hyperchaotic oscillator with complicated dynamics

Abstract Based on the 3D Euler equation, 5D generalized Euler equations are realized by introducing three coupling parameters and combining three subbodies with two same axes, whose Casimir energy and Hamiltonian are both conservative. By violating the Casimir energy conservation...

Green Synthesis of Functional γ‐Lactams via Metal‐Free Promoted Selective Reductive Amination/Cyclization

Developing a “green” synthetic method to functional γ‐lactam is essential due to their significant importance to numerous fields. In this work, we developed an efficient and highly chemoselective reductive amination/cyclization to access isoindolinones and pyrrolidones from 2‐for...

Deep Learning–Driven Visual Intelligence for Chemical Instrument Monitoring: A Scoping Review From an Expert Systems Perspective

ABSTRACT Automated visual recognition in industrial environments has become a key enabler for intelligent monitoring systems, particularly in safety‐critical domains such as chemical plants. Unlike general industrial vision tasks, chemical instrument monitoring operates under str...

Promoting Efficient Ethanol Oxidation via Multimetallic Synergy in PdPtNiBiCo Networks

Abstract The commercialization of direct alcohol fuel cells (DAFCs) is severely hindered by sluggish anodic alcohol oxidation reaction kinetics and the high susceptibility of catalysts to deactivation. Traditional Pd/Pt-based catalysts suffer from difficult C−C bond cleavage and...