Haizhen Ren

ORCID: 0000-0001-5609-5924
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About
Contact & Profiles
Research Areas
  • Graph theory and applications
  • Laser-Matter Interactions and Applications
  • Laser-induced spectroscopy and plasma
  • Mass Spectrometry Techniques and Applications
  • Synthesis and Properties of Aromatic Compounds
  • Advanced Graph Theory Research
  • Advanced Combinatorial Mathematics
  • Graph Labeling and Dimension Problems
  • Interconnection Networks and Systems
  • Stochastic processes and statistical mechanics
  • Advanced Fiber Laser Technologies
  • Markov Chains and Monte Carlo Methods
  • Topological and Geometric Data Analysis
  • Computational Drug Discovery Methods
  • Photonic and Optical Devices
  • Laser Design and Applications
  • Tensor decomposition and applications
  • Matrix Theory and Algorithms
  • Fullerene Chemistry and Applications
  • Photonic Crystal and Fiber Optics
  • Orbital Angular Momentum in Optics
  • Advanced Mathematical Theories and Applications
  • advanced mathematical theories
  • Graph Theory and Algorithms
  • Hypertrophic osteoarthropathy and related conditions

Shanghai Jiao Tong University
2010-2025

Ruijin Hospital
2015-2025

Qinghai Normal University
2010-2023

Qinghai University
2022

Shanghai Children's Medical Center
2022

Xiamen University
2012-2014

Zhongyuan University of Technology
2009

Chinese Academy of Sciences
2008

Technical Institute of Physics and Chemistry
2008

Friedrich-Alexander-Universität Erlangen-Nürnberg
2008

10.46793/match.94-1.229l article EN match Communications in Mathematical and in Computer Chemistry 2025-01-01

Adult-onset Still's disease (AOSD) is an autoinflammatory disorder characterized by reactive neutrophilia and dysregulated cytokine release. Mature neutrophils exhibit increased alkaline phosphatase enzyme activity within cytoplasmic granules, particularly in response to inflammation or acute infection. However, whether neutrophil (NAP) elevated active AOSD, a hyperinflammatory state, remains unclear. We enrolled 114 patients diagnosed with 47 diffuse large B-cell lymphoma (DLBCL), 25...

10.1007/s40744-025-00756-8 article EN cc-by-nc Rheumatology and Therapy 2025-03-27

The potential of hollow core photonic crystal fiber as a nonlinear gas cell for efficient high harmonic generation is discussed. feasibility phase-matching this process by modulating the phase ionization electrons using counter-propagating laser field shown. In way, harmonics with energies several hundreds eV can be produced fs-laser pump pulses microJ energy.

10.1364/oe.16.017052 article EN cc-by Optics Express 2008-10-10

Femtosecond laser-field-induced dissociation and explosion of polyatomic molecules methane methanol were experimentally investigated by using a time-of-flight mass spectrometer chirped pulse amplifier laser. Both linearly polarized circularly femtosecond laser pulses used. The intensity varied from 6×1013 to 3×1015 W cm-2. Strong molecular ions, singly charged fragmental ions highly atomic observed for both methanol. had similar dependence on compared with the ions. This indicated that...

10.1088/0953-4075/35/11/315 article EN Journal of Physics B Atomic Molecular and Optical Physics 2002-05-24

10.1007/s10910-006-9159-9 article EN Journal of Mathematical Chemistry 2006-09-09

The field ionization and Coulomb explosion of diatomic carbon monoxide interacting with intense femtosecond laser pulses was systematically investigated by using a time-of-flight mass spectrometer. kinetic energy release (KER) in causes the atomic ions to exhibit double-peak structure. values KER calculated two-step model were found agree well measured ones. distributions are highly anisotropic, having maximum along polarization axis minimum perpendicular it. In contrast ions, parent ion CO+...

10.1088/0953-4075/36/11/304 article EN Journal of Physics B Atomic Molecular and Optical Physics 2003-05-12

Abstract The ground state electron energy of neutral alternant conjugated hydrocarbons has an absolute value that may be identified as the sum values all eigenvalues its corresponding graph. “double hexagonal chains” can considered benzenoids constructed by successive fusions naphthalenes along a zig‐zag sequence triples edges appear on opposite sides each naphthalene unit. We show if give all‐kink structure (e.g., polybiphenanthrene), then total π‐electron is maximum from among double...

10.1002/qua.21256 article EN International Journal of Quantum Chemistry 2006-11-28

10.1016/j.jmaa.2006.03.081 article EN publisher-specific-oa Journal of Mathematical Analysis and Applications 2006-05-05

10.1016/j.dam.2007.06.003 article EN publisher-specific-oa Discrete Applied Mathematics 2007-06-11

Femtosecond laser-induced dissociation and Coulomb explosion of polyatomic molecule C2H6 were systematically investigated using a time-of-flight mass spectrometer chirped pulse amplifier laser. With the laser intensity varying from 2.4×1015 W/cm2 to 1.2×1016W/cm2, strong molecular ions C2Hn+ (n=0–6) atomic Cm+ (m=1–3) signals observed. The double-peak structure indicated occurrence explosion. Compared with nearly isotropic distribution C+, highly charged (m=2–3) exhibited sharply anisotropic...

10.1088/1009-1963/13/9/035 article EN Chinese Physics 2004-09-01

We study dimer coverings on random multiple chains. A chain is a planar honeycomb lattice constructed by successively fusing copies of 'straight' condensed hexagonal at the bottom previous one in two possible ways. then generated admitting Bernoulli distribution types fusing, which describes zeroth-order Markov process. determine expectation number pure (perfect matchings) over ensemble chains transfer matrix approach. Our result shows that, with only exceptions, average logarithm this...

10.1088/1742-5468/2012/08/p08002 article EN Journal of Statistical Mechanics Theory and Experiment 2012-08-10

Femtosecond laser-induced Coulomb explosion of C3H8 is investigated experimentally by means time-of-flight mass spectrometry at different intensities. The spectrum presents much more abundant fragments than obtained through electron-impact ionization. appearance intermediate daughter molecular ions with a double-peak structure shows that undergoes two-step process. One C–C bond the C3 carbon skeleton breaks first and then other breaks. ion yields initial kinetic energy releases ionic...

10.1088/0953-4075/37/12/006 article EN Journal of Physics B Atomic Molecular and Optical Physics 2004-05-28

The connectivity is an important measurement for the fault tolerance of a network. Let G = ( V ), E )) be connected graph with vertex set ) and edge ). An S ‐tree tree T that contains all vertices in subject to ⊆ Two ‐trees ′ are internally disjoint if only )∩ ∅ . Denote κ by maximum number generalized k ‐connectivity natural generalization classical connectivity, which defined as r min{ | )and| }. In this paper, we mainly focus on cube‐connected‐cycle C n hierarchical hypercube HHC , were...

10.1155/2022/2766404 article EN cc-by Journal of Mathematics 2022-01-01

10.1016/j.laa.2024.12.016 article EN Linear Algebra and its Applications 2024-12-01
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