Zixiang Xu

ORCID: 0000-0003-0155-6783
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About
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Research Areas
  • Limits and Structures in Graph Theory
  • Advanced Graph Theory Research
  • Microbial Metabolic Engineering and Bioproduction
  • Biofuel production and bioconversion
  • Graph theory and applications
  • graph theory and CDMA systems
  • Advanced Topology and Set Theory
  • Finite Group Theory Research
  • Graph Labeling and Dimension Problems
  • Coding theory and cryptography
  • Gene Regulatory Network Analysis
  • Catalytic Processes in Materials Science
  • Electrocatalysts for Energy Conversion
  • Process Optimization and Integration
  • Military Defense Systems Analysis
  • RNA and protein synthesis mechanisms
  • Cooperative Communication and Network Coding
  • Microbial Fuel Cells and Bioremediation
  • Advanced Photocatalysis Techniques
  • Enzyme Catalysis and Immobilization
  • Bacterial Genetics and Biotechnology
  • Advanced Decision-Making Techniques
  • Mathematical Dynamics and Fractals
  • Coal and Its By-products
  • Evaluation Methods in Various Fields

Nanjing Forestry University
2024-2025

Institute for Basic Science
2023-2025

Shanghai University
2024-2025

Xuzhou Medical College
2025

Tianjin Institute of Industrial Biotechnology
2012-2024

Chinese Academy of Sciences
2013-2024

Capital Normal University
2018-2024

Jilin Province Tumor Hospital
2024

Nantong University
2021-2024

Zunyi Medical University
2023-2024

Recently, deep convolution neural networks (CNNs) steered face super-resolution methods have achieved great progress in restoring degraded facial details by joint training with priors. However, these some obvious limitations. On the one hand, multi-task learning requires additional marking on dataset, and introduced prior network will significantly increase computational cost of model. other limited receptive field CNN reduce fidelity naturalness reconstructed images, resulting suboptimal...

10.1109/tip.2023.3261747 article EN IEEE Transactions on Image Processing 2023-01-01

Given a graph $G$, denote by $h(G)$ the smallest size of subset $V(G)$ which intersects every maximum independent set $G$. We prove that any $G$ without induced matching $t$ satisfies $h(G)\le \omega(G)^{3t-3+o(1)}$. This resolves conjecture Hajebi, Li and Spirkl [Hitting all stable sets in $P_{5}$-free graphs. J. Combin. Theory Ser. B, 165:142-163, 2024].

10.37236/13469 article EN cc-by The Electronic Journal of Combinatorics 2025-01-30

Elimination of dilute gaseous toluene is one the critical concerns within field indoor air remediation. The typical degradation route on titanium-based catalysts, "toluene-benzaldehyde-carbon dioxide", necessitates oxidation methyl group as a prerequisite for photocatalytic oxidation. However, inherent planar adsorption configuration molecules, dominated by benzene rings, leads to significant steric hindrance group. This prevents from contacting active species catalyst surface, thereby...

10.1021/acs.est.4c06079 article EN Environmental Science & Technology 2024-08-27

Gene knockout has been used as a common strategy to improve microbial strains for producing chemicals. Several algorithms are available predict the target reactions be deleted. Most of them apply mixed integer bi-level linear programming (MIBLP) based on metabolic networks, and use duality theory transform optimization problem large-scale MIBLP single-level programming. However, validity transformation was not proved. Solution depends structure inner problem. If is continuous,...

10.1371/journal.pone.0072150 article EN cc-by PLoS ONE 2013-12-11

The N-doped cobalt-based (Co) bifunctional single atom catalyst (SAC) has emerged as one of the most promising candidates to substitute noble metal-based catalysts for highly efficient bifunctionality. Herein, a facile silica xerogel strategy is elaborately designed synthesize uniformly dispersed and dense Co-N

10.3390/nano12030381 article EN cc-by Nanomaterials 2022-01-24

Based on our self-developed visualized experimental device, we investigated the erosion failure characteristics and mechanisms of eolian sand slopes in desert hinterlands under simulated rainfall conditions. The impact various intensities, slope angles, soil cover reinforcement measures stability are assessed. effectiveness different particle sizes mitigating is also evaluated. Results indicate that rainwater infiltration significantly reduces soil's matric suction shear strength, leading to...

10.2139/ssrn.5085446 preprint EN 2025-01-01

We investigate the longstanding problem of determining maximum size a $(d+1)$-uniform set system with VC-dimension at most $d$. Since seminal 1984 work Frankl and Pach, which established elegant upper bound $\binom{n}{d}$, this question has resisted significant progress. The best-known lower is $\binom{n-1}{d} + \binom{n-4}{d-2}$, obtained by Ahlswede Khachatrian, leaving substantial gap $\binom{n-1}{d-1}-\binom{n-4}{d-2}$. Despite decades effort, improvements to Frankl--Pach have been...

10.48550/arxiv.2501.13850 preprint EN arXiv (Cornell University) 2025-01-23

Neuroinflammation caused by excessive activation of microglia is a significant cause poor prognosis in ischemic stroke patients. Minocycline, microglial cell inhibitor, has neuroprotective effects stroke, but its optimal treatment duration and specific mechanisms action remain unclear. This study aimed to compare the efficacy different minocycline durations on explore their action. We investigated various polarization using cellular animal models. The long-term therapy for were explored...

10.1111/cns.70328 article EN cc-by CNS Neuroscience & Therapeutics 2025-03-01

ABSTRACT A widely open conjecture proposed by Bollobás, Erdős, and Tuza in the early 1990s states that for any ‐vertex graph , if independence number then there is a subset with such intersects all maximum independent sets of . In this study, we prove holds graphs do not contain an induced fixed Our proof leverages probabilistic method at appropriate juncture.

10.1002/jgt.23246 article EN Journal of Graph Theory 2025-03-30

Catalytic oxidation emerges as a highly promising and cost‐effective approach for eliminating gaseous pollutants, greenhouse gases, volatile organic compounds (VOCs) from industrial exhaust streams. However, achieving the simultaneous activation of O2 substrate molecules at low temperatures using non‐precious metal catalysts remains significant challenge. In this study, we introduce gradient oxidative Cu‐O‐Ti/Cu‐O‐Cu dual sites that enhance bimolecular catalytic reactions. The catalyst,...

10.1002/anie.202506018 article EN Angewandte Chemie International Edition 2025-04-09

Catalytic oxidation emerges as a highly promising and cost‐effective approach for eliminating gaseous pollutants, greenhouse gases, volatile organic compounds (VOCs) from industrial exhaust streams. However, achieving the simultaneous activation of O2 substrate molecules at low temperatures using non‐precious metal catalysts remains significant challenge. In this study, we introduce gradient oxidative Cu‐O‐Ti/Cu‐O‐Cu dual sites that enhance bimolecular catalytic reactions. The catalyst,...

10.1002/ange.202506018 article EN Angewandte Chemie 2025-04-09

Peroxynitrite (ONOO − ) plays an essential role in numerous physiological and pathological processes owing to its strong oxidation nitrification.

10.1039/d3ra01024d article EN cc-by-nc RSC Advances 2023-01-01

Yeast transcription factors (TFs) involved in the regulation of multidrug resistance (MDR) were investigated experiments with deletion mutants, transformants overexpressing synthetic genes encoding TFs, and toxic concentrations lignocellulose-derived substances added to cultures as complex mixtures or specific compounds, viz. coniferyl aldehyde, 5-hydroxymethylfurfural, furfural. In presence from spruce wood, YAP1 STB5, TFs oxidative stress response, exhibited enhanced relative growth rates...

10.1186/s12934-017-0811-9 article EN cc-by Microbial Cell Factories 2017-11-14

Probability collectives (PC) is a recent agent-based search framework for function optimisation through optimising parameters of collection probability distributions. Differential evolution (DE) successful metaheuristic method particularly real-parameter global optimisation. This paper presents hybrid computational model based on modified PC and DE algorithms the purpose improved solutions real-valued problems. In proposed model, performs first phase local explores promising areas updating...

10.1504/ijbic.2016.076652 article EN International Journal of Bio-Inspired Computation 2016-01-01

Abstract Myceliophthora thermophila , a thermophilic fungus that can degrade and utilize all major polysaccharides in plant biomass, has great potential biotechnological industries. Here, the first manually curated genome‐scale metabolic model iDL1450 for M . was reconstructed using an autogenerating pipeline with thorough manual curation. The contains 1450 genes, 2592 reactions, 1784 unique metabolites. High accuracy shown predictions related to carbon nitrogen source utilization based on...

10.1002/bit.28080 article EN Biotechnology and Bioengineering 2022-03-08
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