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World Journal of Clinical Cases 2025年第4期13卷 41-47页

作者： Xing-Po Li Zi-Shan Wang Hong-xia yu Shan-Shan Wang Department of Cardiovascular Medicine Huantai County Hospital of Traditional Chinese MedicineZibo 256400Shandong ProvinceChina Department of Cardiovascular Medicine Zibo Hospital of Integrated Traditional Chinese and Western MedicineZibo 255500Shandong ProvinceChina

BACKGROUND The incidence of acute myocardial infarction(AMI)is rising,with cardiac rupture accounting for approximately 2%of deaths in patients with acute ST-segment elevation myocardial infarction(STEMI).Ventricular free wall rupture(FWR)occurs in approximately 2%of AMI patients and is notably rare in patients with *** of cardiac rupture include left ventricular FWR,ventricular septal rupture,and papillary muscle *** FWR usually leads to acute cardiac tamponade or electromechanical dissociation,where standard resuscitation efforts may not be *** septal rupture and papillary muscle rupture often result in refractory heart failure,with mortality rates over 50%,even with surgical or percutaneous repair *** SUMMARY We present a rare case of an acute non-STEMI patient who suffered sudden FWR causing cardiac tamponade and loss of consciousness immediate before undergoing coronary *** resuscitation and emergency open-heart repair along with coronary artery bypass grafting resulted in successful patient *** This case emphasizes the risks of AMI complications,shares a successful treatment scenario,and discusses measures to prevent such complications.

关键词： Acute non-ST segment elevation myocardial infarction Cardiac rupture Acute myocardial infarction Free wall rupture Case report

Steady-state teleportation fidelity and Bell nonlocality in dissipative environments

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Communications in Theoretical Physics 2021年第7期73卷 75-80页

作者： yu-xia Xie School of Science Xi’an University of Posts and TelecommunicationsXi’an 710121China

We investigate quantum teleportation and Bell nonlocality for two channel qubits coupled via the Heisenberg interaction and subject to two independent dissipative *** with the case of two uncoupled qubits,it is shown that the interaction Hamiltonian is beneficial for enhancing the teleportation fidelity and Bell nonlocality,and remarkably,it can also be used to create nonclassical teleportation fidelity and Bell nonlocality even from the initial product ***,the interaction Hamiltonian guarantees the generation of steady-state nonclassical teleportation fidelity,which is independent of the initial state and therefore one can take any state as the initial channel state.

关键词： quantum teleportation Bell inequality decoherence

Boundedness of some integral operators and commutators on homogeneous Herz spaces with three variable exponents

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Frontiers of Mathematics in China 2021年第1期16卷 211-237页

作者： xia yu Zongguang LIU School of Sciences China University of Mining and TechnologyBeijing 100083China

We obtain the boundedness of some integral operators and commutators on homogeneous Herz spaces with three variable exponents K^(˙α(⋅))_(p(⋅),q(⋅)),such as some sublinear operators,the fractional integral and its co... 详细信息

关键词： Sublinear operator fractional integral commutator homogeneous Herz space variable exponent

On Stability Discrimination of Limit Cycles for Piecewise Smooth Systems

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Acta Mathematica Sinica,English Series 2024年第7期40卷 1785-1803页

作者： Mao An HAN xia yu ZHOU School of Mathematical Sciences Zhejiang Normal UniversityJinhua321004P.R.China

This paper is concerned with the problem of stability discrimination of limit cycles for piecewise smooth *** first establish the Poincaré map near a periodic orbit,and deduce the first order derivative of the map for general piecewise smooth systems on the ***,we obtain a sufficient condition for determining the stability of limit cycles for these systems.

关键词： Piecewise smooth system limit cycle stability

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Design and FPGA implementation of multi-wing chaotic switched systems based on a quadratic transformation

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Chinese Physics B 2021年第2期30卷 240-249页

作者： Qing-yu Shi xia Huang Fang yuan yu-xia Li College of Electrical Engineering and Automation Shandong University of Science and TechnologyQingdao 266590China

Based on a quadratic transformation and a switching function,a novel multi-wing chaotic switched system is ***,a 4-wing chaotic system is constructed from a 2-wing chaotic system on the basis of a quadratic ***,a switching function is designed and by adjusting the switching function,the number and the distribution of the saddle-focus equilibrium points of the switched system can be ***,a set of chaotic switched systems,which can produce 6-to-8-12-16-wing attractors,are *** Lyapunov exponent spectra,bifurcation diagrams,and Poincarémaps are given to verify the existence of the chaotic ***,the digital circuit of the multi-wing chaotic switched system is designed by using the Verilog HDL fixed-point algorithm and the state machine ***,the multi-wing chaotic attractors are demonstrated via FPGA *** experimental results show that the number of the wings of the chaotic attractors can be expanded more effectively with the combination of the quadratic transformation and the switching function methods.

关键词： quadratic transformation chaotic switched system FPGA

Research on the Low-carbon Cementitious Materials:Effect of Triisopropanolamine on the Hydration of Phosphorous Slag and Steel Slag

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Journal of Wuhan University of Technology(Materials Science) 2023年第6期38卷 1348-1359页

作者： ZHANG Ting MA Baoguo xia yu State Key Laboratory of Silicate Materials for Architectures Wuhan University of TechnologyWuhan 430070China School of Surveying&Testing Shaanxi Railway InstituteWeinan 714000China

Cement,phosphorous slag(PS),and steel slag(SS)were used to prepare low-carbon cementitious materials,and triisopropanolamine(TIPA)was used to improve the mechanical properties by controlling the hydration *** experimental results show that,by using 0.06%TIPA,the compressive strength of cement containing 60%PS or 60%SS could be enhanced by 12%or 18%at 28 *** presence of TIPA significantly affected the hydration process of PS and SS in *** the early stage,TIPA accelerated the dissolution of Al in PS,and the formation of carboaluminate hydrate was facilitated,which could induce the hydration;TIPA promoted the dissolution of Fe in SS,and the formation of Fe-monocarbonate,which was precipitated on the surface of SS,resulting in the postponement of hydration,especially for the high SS *** the later stage,under the continuous solubilization effect of TIPA,the hydration of PS and SS could refine the pore *** was noted that compared with portland cement,the carbon emissions of cement-PS-TIPA and cement-SS-TIPA was reduced by 52%and 49%,respectively.

关键词： phosphorous slag steel slag high content trisopropanolamine hydration process lowcarbon emissions

Effects of assembly errors and bonding defects on the centroid drift of a precision sleeve structure

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Advances in Manufacturing 2021年第4期9卷 509-519页

作者： Jian-Hua Liu xia-yu Li Huan-Xiong xia Lei Guo School of Mechanical Engineering Beijing Institute of TechnologyBeijing 100081People’s Republic of China

Adhesive joints are widely used in precision electromechanical products,and their bonding process has significant effects on the performance of an assembled *** paper presents a numerical study on the bonding assembly of a sleeve structure of a precision inertial device using a finite element method,where the stresses due to curing and relaxation behaviors are *** effects of assembly errors and bonding defects on the centroid drift of the sleeve structure were found and analyzed *** study can help understand the zero-drift mechanism of the precision inertial device and contribute valuable data for its error compensation.

关键词： Bonding process Adhesive joint Precision assembly Centroid drift

Steered coherence and entanglement in the Heisenberg XX chain under twisted boundary conditions

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Chinese Physics B 2021年第7期30卷 139-144页

作者： yu-Hang Sun yu-xia Xie School of Science Xi'an University of Posts and TelecommunicationsXi'an 710121China

We study steered coherence(SC)and entanglement in a three-spin Heisenberg XX model under twisted boundary conditions and show that their strengths can be significantly enhanced by tuning the twist *** optimal twist angleθ_(opt)for achieving the maximum l_(1) norm of SC isπin the region of weak field B and decreases gradually fromπto 0 when B increases after a critical value,while for the relative entropy of SC,θ_(opt)equalsπin the weak field region and 0 *** entanglement and the critical temperature above which the entanglement vanishes can also be significantly enhanced by tuning the twist angle from 0 toπ.

关键词： quantum coherence entanglement twisted boundary conditions

Multiplicity of Solutions for Quasilinear Elliptic Systems with Singularity

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Acta Mathematicae Applicatae Sinica 2015年第1期31卷 277-286页

作者： Juan LI yu-xia TONG Department of Mathematics Ningbo University College of Science Heibei United University

In this paper, we study the existence of multiple solutions for the following quasilinear ellipticsystem：-△pu-μ1︳u︳p-1u/︳x︳=α1up（t）-2/︳x︳t＋β1︳v︳β2︳u︳β1-2u,x∈Ω,-△qu-μ2︳v︳q-2v/︳x︳q=α2 vq（s）-2/︳x︳sv＋β2︳u︳β1︳v︳β2-2v,x∈Ω u（x）=v（x）=0 x∈Ω Multiplicity of solutions for the quasilinear problem is obtained via variational method.

关键词： quasilinear elliptic system singularity critical growth

Dense copper azide synthesized by in-situ reaction of assembled nanoporous copper microspheres and its initiation performance

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Defence Technology（防务技术） 2022年第6期18卷 1065-1072页

作者： Xing-yu Wu Ming-yu Li Qing-xuan Zeng Qing-xia yu State Key Laboratory of Explosion and Technology Beijing Institute of TechnologyBeijing100081PR China

Copper azide with high density was successfully synthesized by in-situ reaction of nanoporous copper(NPC)precursor with HN_(3) *** with pore size of about 529 nm has been prepared by electroless plating using polystyrene(PS)as *** copper shells thickness of NPC was controlled by adjusting the PS loading *** effects of copper shell on the morphology,structure and density of copper azide were *** conversion increased from 87.12%to 95.31%when copper shell thickness decrease from 100 to 50 ***,the density of copper azide prepared by 529 nm NPC for 24 h was up to 2.38 g/cm^(3).The hollow structure of this NPC was filled by swelling of copper azide which guaranteed enough filling volume for keeping the same shape as well as improving the charge ***,HNS-IV explosive was successfully initiated by copper azide with minimum charge thickness of 0.55 mm,showing that copper azide prepared has excellent initiation performance,which has more advantages in the application of miniaturized explosive systems.

关键词： Nanoporous copper Electroless plating In-situ reaction Copper azide