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Existence and Properties of Solutions for a Class of Fractional Differential Equations

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Acta Mathematicae Applicatae Sinica 2021年第3期37卷 477-484页

作者： yong-qiang xu Shu-hong CHEN Zhong TAN School of Mathematics and Statistics Minnan Normal UniversityZhangzhou 363000China School of Mathematical Sciences Xiamen UniversityXiamen 361005China

In this paper,we consider the initial value problem of a class of fractional differential ***,we obtain the existence and uniqueness of the solutions by using Picard’s method of successive *** we discuss the dependen... 详细信息

关键词： existence uniqueness fractional derivative equations

Coupling and readout of semiconductor quantum dots with a superconducting microwave resonator

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Science China(Physics,Mechanics & Astronomy) 2023年第3期66卷 1-10页

作者： yong-qiang xu Si-Si Gu Ting Lin Bao-Chuan Wang Hai-Ou Li Gang Cao Guo-Ping Guo CAS Key Laboratory of Quantum Information University of Science and Technology of ChinaHefei 230026China CAS Center for Excellence in Quantum Information and Quantum Physics University of Science and Technology of ChinaHefei 230026China Hefei National Laboratory University of Science and Technology of ChinaHefei 230088China Origin Quantum Computing Company Limited Hefei 230088China

In a circuit quantum electrodynamics(circuit QED) architecture, the microwave resonator could be used to couple and probe qubits. The long-range coupling and information transfer between nonlocal qubits can be performed via photons trapped in a microwave resonator, promising an effective approach for scaling up solid-state qubits. A series of important advances in the hybrid system composed of a microwave resonator and semiconductor qubits have been achieved in recent years. For instance,with applications of high-impedance microwave resonators, the strong coupling regime between charge/spin qubits and a microwave resonator has been reached. Simultaneously, resonator-based dispersive readout and single-shot readout to probe the qubit state have been further improved due to the increase of the coupling strength. Here, we briefly introduce this hybrid system related to the progress and fruits in achieving the strong coupling between charge/spin qubits in double quantum dots(DQDs)and the resonator, the long-range coupling between qubits, and also the applications of the resonator for qubit state readout.

关键词： quantum dots hybrid system circuit QED strong coupling long-range coupling qubit state readout

PORLES:A Parallel Object Relational Database System

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Wuhan University Journal of Natural Sciences 2001年第Z1期6卷 100-109页

作者： Sun yong\|qiang, xu Shu\|ting, Zhu Feng\|hua, Lai Shu\|huaDepartment of Computer Science and Engineering, Shanghai Jiaotong University, Shanghai 200030,China Department of Computer Science and Engineering Shanghai Jiaotong University Shanghai China

We developed a parallel object relational DBMS named PORLES. It uses BSP model as its parallel computing model, and monoid calculus as its basis of data model. In this paper, we introduce its data model, parallel que... 详细信息

关键词： parallel object relational database BSP model data model query optimization

Coupling and characterization of a Si/SiGe triple quantum dot array with a microwave resonator

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Chinese Physics B 2024年第9期33卷 139-143页

作者： Shun-Li Jiang Tian-Yi Jiang yong-qiang xu Rui Wu Tian-Yue Hao Shu-Kun Ye Ran-Ran Cai Bao-Chuan Wang Hai-Ou Li Gang Cao Guo-Ping Guo CAS Key Laboratory of Quantum Information University of Science and Technology of ChinaHefei 230026China CAS Center for Excellence in Quantum Information and Quantum Physics University of Science and Technology of ChinaHefei 230026China Origin Quantum Computing Company Limited Hefei 230088China

Scaling up spin qubits in silicon-based quantum dots is one of the pivotal challenges in achieving large-scale semiconductor quantum *** satisfy the connectivity requirements and reduce the lithographic complexity,utilizing the qubit array structure and the circuit quantum electrodynamics(cQED)architecture together is expected to be a feasible scaling scheme.A triple-quantum dot(TQD)coupled with a superconducting resonator is regarded as a basic cell to demonstrate this extension *** this article,we investigate a system consisting of a silicon TQD and a high-impedance TiN coplanar waveguide(CPW)*** TQD can couple to the resonator via the right double-quantum dot(RDQD),which reaches the strong coupling regime with a charge–photon coupling strength of g0/(2p)=175 ***,we illustrate the high tunability of the TQD through the characterization of stability diagrams,quadruple points(QPs),and the quantum cellular automata(QCA)*** results contribute to fostering the exploration of silicon-based qubit integration.

关键词： triple-quantum dot strong coupling circuit quantum electrodynamics(cQED) scalable siliconbased cQED architectures

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固体火箭燃气射流近场形成与发展的数值模拟

推进技术 2003年第5期24卷 410-413页

作者：李军曹从咏徐强南京理工大学机械学院江苏南京210094

固体火箭武器燃气射流的近场区域存在有复杂的波系,膨胀波、压缩波的混合作用是机弹、弹舰相容性研究的重要内容,复杂波系压力、温度场的分布是燃气射流动力冲击和热冲击作用的直接因素。因为这一区域流动的复杂性,使得实验研究非常... 详细信息

固体火箭武器燃气射流的近场区域存在有复杂的波系,膨胀波、压缩波的混合作用是机弹、弹舰相容性研究的重要内容,复杂波系压力、温度场的分布是燃气射流动力冲击和热冲击作用的直接因素。因为这一区域流动的复杂性,使得实验研究非常困难。为此应用数值分析的方法,研究了固体火箭高度欠膨胀燃气射流流场起始冲击波、近场波系的形成及发展。计算结果揭示了近场区域的一些特性,与文献提供的数据较为吻合,为工程应用提供了帮助。

关键词：固体火箭推进火箭排气喷管气流流动分布数值仿真

基于链路奖惩和节点优选机制的VANETs路由协议

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计算机工程与设计 2017年第8期38卷 2037-2041,2098页

作者：袁芬何永强徐从富浙江长征职业技术学院计算机与信息技术系浙江杭州310023 河南工程学院计算机学院河南郑州451191 浙江大学计算机科学与技术学院浙江杭州310027

提出一种面向车辆自组织网络应用的稳定路由协议。依据两节点之间hello数据包传输时间,对两节点之间的通信链路进行奖惩,得到每一条通信链路的奖惩值;综合考虑链路带宽、传输距离、节点移动速度和节点密度4个因素,构建节点优选因子,优... 详细信息

提出一种面向车辆自组织网络应用的稳定路由协议。依据两节点之间hello数据包传输时间,对两节点之间的通信链路进行奖惩,得到每一条通信链路的奖惩值;综合考虑链路带宽、传输距离、节点移动速度和节点密度4个因素,构建节点优选因子,优选节点优选因子大的节点作为下一跳节点;结合链路奖惩值和节点优选因子构建链路权重,依据链路权重最大准则进行路由发现和路由维护。实验结果表明,与常用的MAODV、GPSR、GPSR-R路由协议相比,该路由协议报文送达率高,端到端平均延时和网络负载小。

关键词：路由协议奖惩机制节点优选因子链路权重车辆自组织网络

Observation of Plasma Proendothelin-1 in 135 Patients with Sepsis

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麻醉与监护论坛 2013年第1期20卷 18-21页

作者： Chang-xing Guo Zhao-fen Lin MORGENTHALER NILS G KOHRLE JOSEF Xing-yi Yang Liang Zhao Hong-wei Shan yong-hua xu qiang Zhang Emergency Department Changzheng Hospital Second Military Medical University Shanghai 200003 China

A Retrospective study of Plasma Cell Infiltrate in Explanted Renal Allograft

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A Retrospective study of Plasma Cell Infiltrate in Explanted...

Deciphering the role of ultra-low-loaded rhodium in NiFe-MIL-53 for superior oxygen evolution reaction

第十五届全国泌尿外科学术会议

作者： xu Xiaoguang,SHI Bingyi, CAI Ming,HAN yong,WANG qiang,xu Liang, XIAO Li,ZHOU Wenqiang Transplantation Center, the Second Affiliated Hospital, Chinese PLA General Hospital, Beijing , China 100091

Renal transplantation is the most effective therapy in end-stage renal disease. The prognosis of transplant survival is still determined by rejection. Plasma cells predominate in the cellular infiltrate of allograft in rejection is called plasma cell rich rejection, and plasma cell rich allograft has a poor prognosis. In order to study the correlation between plasma cell infiltrate and the humoral rejection,

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Journal of Energy Chemistry 2025年第1期100卷 77-86页

作者： Jinzhi Jia Jinhua Zhang Kailu Guo Lanyue Zhang Gening Du Hao You Junfeng Huang Mudong Tu Hua Li yong Peng Wei Dou Cailing xu State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical Engineering School of Materials and Energy Lanzhou University College of Chemistry and Chemical Engineering Luoyang Normal University

Designing highly active and stable electrocatalysts of oxygen evolution reaction （OER） is one of the crucial *** this study,a novel OER electrocatalyst,NiFe-MIL-53 modified with ultra-low rhodium（Rh@NiFe-MIL-53）,is successfully prepared via the hydrothermal ***-situ Raman spectroscopy and electrochemical impedance spectroscopy reveal that the doped Rh accelerates the phase transformation of NiFe-MIL-53 and the in-situ formed Rh@NiFeOOH is the actual active *** importantly,the enhanced reversibility of electrochemical reconstruction between NiFeOOH and NiFe（OH）2after doping Rh is beneficial for improving the electrochemical stability of the catalyst.X-ray photoelectron spectroscopy spectra show the strong electronic interaction between single-atom Rh and Ni/Fe in Rh@***,theoretical calculations confirm that the integration of single-atom Rh into the NiFeOOH successfully reduces the band gap,regulates the d-band center （εd）,accelerates the charge transfer,and optimizes the adsorption behavior of oxygen-containing intermediates,thereby lowering the energy barrier of rate-determining ***,the optimized Rh@NiFe-MIL-53 exhibits excellent OER activity （240 mV） with a small Tafel slope of 48.2 mV dec-1and long-term durability (over1270 h at 10 m A cm-2and 110 h at 200 mA cm-2).This work presents a new perspective on designing highly efficient OER electrocatalysts.

关键词： NiFe-MIL-53 Rh Electrochemical reconstruction Catalytic mechanism Oxygen evolution reaction