检索结果-内蒙古大学图书馆

第33届中国控制与决策会议

作者： Jiasheng Shi Jun Zhao State Key Laboratory of Synthetical Automation for Process Industries Northeastern University Key Laboratory of Data Analytics and Optimization for Smart Industry (Northeastern University) Ministry of Education College of Information Science and Engineering Northeastern University

This paper studies event-triggered control problem for a class of switched descriptor systems based on sampled-data *** switched descriptor systems are first to be decomposed into a equivalent form,and then a reduced-order switched system is ***,a sufficient condition ensures that the closed-loop system is exponentially stable under average dwell time switching ***,the Zeno behavior is ruled *** the end,a numerical examples is demonstrated the merit and effectiveness of the proposed methods.

关键词： Average dwell time Switched descriptor systems Event-triggered control Sampled-data

来源：评论

学校读者我要写书评

暂无评论

Socially Optimal Nash Equilibrium of Switched Linear Quadratic Differential Games

Socially Optimal Nash Equilibrium of Switched Linear Quadrat...

引用

第40届中国控制会议

作者： Yabing Huang Jun Zhao State Key Laboratory of Synthetical Automation for Process Industries Northeastern University Key Laboratory of Data Analytics and Optimization for Smart Industry Northeastern University Ministry of Education College of Information Science and Engineering Northeastern University

In this paper, the socially optimal Nash equilibrium of the N-player switched differential game is investigated. Specifically, the definition of the switched Nash equilibrium is presented, and the sufficient condition to construct the switched Nash equilibrium is proposed thereafter. In order to improve the efficiency of the switched Nash equilibrium, the switching strategy is designed to minimize the social costs of N players to guarantee the resulting switched Nash equilibrium is socially optimal.

关键词： Switched systems Nash equilibrium social optimum differential game

来源：评论

学校读者我要写书评

暂无评论

Unilateral tracking control for switched linear systems

Unilateral tracking control for switched linear systems

引用

第33届中国控制与决策会议

作者： Yaoli Zhang Jun Zhao State Key Laboratory of Synthetical Automation for Process Industries Northeastern University Key Laboratory of Data Analytics and Optimization for Smart Industry (Northeastern University) Ministry of Education College of Information Science and Engineering Northeastern University

In this paper,we design the controllers to asymptotically track a constant signal without overshoot for switched linear time-invariant *** component of error is shaped by one mode to realize no *** arbitrary switching signal,the closed-loop switched system is stable based on common Lyapunov *** design a state-dependent switching signal to achieve the nonovershooting tracking,when the stability or the monotonally increasing error for some one subsystem is not satisfied.A numerical example is given to illustrate the effectiveness of the proposed method.

关键词： Unilateral tracking Switched systems Nonovershooting

来源：评论

学校读者我要写书评

暂无评论

Adaptive Aperiodic Intermittent Control for Nonlinear Active Suspension Systems

Adaptive Aperiodic Intermittent Control for Nonlinear Active...

引用

第40届中国控制会议

作者： Qiang Zeng Dan Ma Jun Zhao State Key Laboratory of Synthetical Automation for Process Industries Northeastern University Key Laboratory of Data Analytics and Optimization for Smart Industry Northeastern University Ministry of Education College of Information Science and Engineering (Northeastern University)

This paper proposes an aperiodic intermittent control method for nonlinear active suspension systems（ASSs）. The dynamics of ASSs under the intermittent control is regarded as switched nonlinear systems composed of controllable and uncontrollable subsystems. An aperiodic adaptive intermittent control scheme can be presented to stabilize the attitude of the vehicle by using the backstepping technique and improve the comfort of passengers. Indeed, the objective is achieved via the tradeoff among the controllable and uncontrollable subsystems from the dwell time algorithm. Then, the performance of closed-loop ASSs can be analyzed by the Lyapunov theory. Finally, the effectiveness and rationality of the proposed method are verified from the simulation results.

关键词： active suspension system intermittent control switched system dwell time adaptive control

来源：评论

学校读者我要写书评

暂无评论

Stability for Switched Nonlinear Systems via Event-triggered Impulsive and Switching Control

Stability for Switched Nonlinear Systems via Event-triggered...

引用

第33届中国控制与决策会议

作者： Zhengbao Cao Jun Zhao State Key Laboratory of Synthetical Automation for Process Industries Northeastern University Key Laboratory of Data Analytics and Optimization for Smart Industry (Northeastern University) Ministry of Education College of Information Science and Engineering Northeastern University

The paper proposes an event-triggered impulsive and switching control mechanism for a class of switched nonlinear systems,where each subsystem of such a switched system is allowed to be unstable,and there does not exist any switching law to stabilize the *** that the event-triggered impulsive and switching control can reduce the number of occurrence of impulses *** importantly,the event-triggered impulsive and switching control can not only guarantee stability of system,but also exclude Zeno ***,a numerical example is given to illustrate the effectiveness of the results.

关键词： Switched Systems Event-triggered Mechanism Impulsive Control Switching Control Stability

来源：评论

学校读者我要写书评

暂无评论

Probing a polymerized black hole with the frequency shifts of photons

arXiv

引用

arXiv 2022年

作者： Fu, Qi-Ming Zhang, Xin College of Sciences Northeastern University Shenyang110819 China Institute of Physics Shaanxi University of Technology Hanzhong723000 China Key Laboratory of Data Analytics and Optimization for Smart Industry Ministry of Education Northeastern University Shenyang110819 China National Frontiers Science Center for Industrial Intelligence and Systems Optimization Northeastern University Shenyang110819 China

As is well-known, black hole plays an important role in probing the quantum effects of gravity in the strong-field regime. In this paper, we focus on a polymerized black hole and investigate the quantum effects on the redshift, blueshift and gravitational redshift of photons emitted by massive particles revolving around this black hole. With a general relativistic formalism, we obtain two elegant and concise expressions for the mass of the black hole and the quantum parameter in terms of few direct observables, and find that all the frequency shifts of photons decrease with the quantum parameter. By expanding the total frequency shift for large orbit of the emitter, low peculiar redshift, and small azimuthal angle, we find that the leading contributions to the frequency shift are originated from the kinematic shift and peculiar shift, and the quantum effects make a negligible contribution. In addition, we study the effects of the plasma on the redshift/blueshift for the first time, and conclude that the presence of plasma results in the decrease of the redshift/blueshift. Copyright © 2022, The Authors. All rights reserved.

关键词： Black holes

来源：评论

学校读者我要写书评

暂无评论

Prospects for measuring dark energy with 21 cm intensity mapping experiments

arXiv

引用

arXiv 2021年

作者： Wu, Peng-Ju Zhang, Xin Department of Physics College of Sciences Northeastern University Shenyang110819 China MOE Key Laboratory of Data Analytics and Optimization for Smart Industry Northeastern University Shenyang110819 China

Using the 21 cm intensity mapping (IM) technique can efficiently perform large-scale neutral hydrogen (H i) surveys, and this method has great potential for measuring dark-energy parameters. Some 21 cm IM experiments aiming at measuring dark energy in the redshift range of 0 0) = 0.080 and σ(wa) = 0.25 in the CPL model. Compared with CMB+BAO+SN, Tianlai can provide tighter constraints in ΛCDM and wCDM, but looser constraints (tighter than CMB+BAO) in CPL, and the combination CMB+BAO+SN+Tianlai gives σ(w) = 0.013, σ(w0) = 0.055, and σ(wa) = 0.13. In addition, it is found that the synergy of FAST (0 © 2021, CC BY.

关键词： Surveys

来源：评论

学校读者我要写书评

暂无评论

How can gravitational-wave standard sirens and 21-cm intensity mapping jointly provide a precise late-universe cosmological probe?

arXiv

引用

arXiv 2021年

作者： Jin, Shang-Jie Wang, Ling-Feng Wu, Peng-Ju Zhang, Jing-Fei Zhang, Xin Department of Physics College of Sciences Northeastern University Shenyang110819 China MOE Key Laboratory of Data Analytics and Optimization for Smart Industry Northeastern University Shenyang110819 China

In the next decades, the gravitational-wave (GW) standard siren observations and the neutral hydrogen 21-cm intensity mapping (IM) surveys, as two promising cosmological probes, will play an important role in precisely measuring cosmological parameters. In this work, we make a forecast for cosmological parameter estimation with the synergy between the GW standard siren observations and the 21-cm IM surveys. We choose the Einstein Telescope (ET) and the Taiji observatory as the representatives of the GW detection projects and choose the Square Kilometre Array (SKA) phase I mid-frequency array as the representative of the 21-cm IM experiments. In the simulation of the 21-cm IM data, we assume perfect foreground removal and calibration. We find that the synergy of the GW standard siren observations and the 21-cm IM survey could break the cosmological parameter degeneracies. The joint ET+Taiji+SKA data give σ(H0) = 0.28 km s−1 Mpc−1 in the ΛCDM model, σ(w) = 0.028 in the wCDM model, which are better than the results of Planck+BAO+SNe, and σ(w0) = 0.077 and σ(wa) = 0.295 in the CPL model, which are comparable with the results of Planck+BAO+SNe. In the ΛCDM model, the constraint precision of H0 and Ωm is less than or rather close to 1%, indicating that the magnificent prospects for precision cosmology with these two promising cosmological probes are worth expecting. © 2021, CC BY.

关键词： Surveys

来源：评论

学校读者我要写书评

暂无评论

A review of big data technology and its application in cancer care

引用

Computers in Biology and Medicine 2024年 176卷 108577-108577页

作者： Xiao, Tianyun Kong, Shanshan Zhang, Zichen Hua, Dianbo Liu, Fengchun Hebei Key Laboratory of Data Science and Application North China University of Science and Technology Hebei Tangshan063210 China The Key Laboratory of Engineering Computing in Tangshan City North China University of Science and Technology Hebei Tangshan063210 China College of Science North China University of Science and Technology Hebei Tangshan063210 China Hebei Engineering Research Center for the Intelligentization of Iron Ore Optimization and Ironmaking Raw Materials Preparation Processes North China University of Science and Technology Hebei Tangshan China Tangshan Intelligent Industry and Image Processing Technology Innovation Center North China University of Science and Technology Hebei Tangshan China Beijing Sitairui Cancer Data Analysis Joint Laboratory Beijing101149 China

The development of modern medical devices and information technology has led to a rapid growth in the amount of data available for health protection information, with the concept of medical big data emerging globally, along with significant advances in cancer care relying on data-driven approaches. However, outstanding issues such as fragmented data governance, low-quality data specification, and data lock-in still make sharing challenging. Big data technology provides solutions for managing massive heterogeneous data while combining artificial intelligence (AI) techniques such as machine learning (ML) and deep learning (DL) to better mine the intrinsic connections between data. This paper surveys and organizes recent articles on big data technology and its applications in cancer, dividing them into three different types to outline their primary content and summarize their critical role in assisting cancer care. It then examines the latest research directions in big data technology in cancer and evaluates the current state of development of each type of application. Finally, current challenges and opportunities are discussed, and recommendations are made for the further integration of big data technology into the medical industry in the future. © 2024 Elsevier Ltd

关键词： Big data

来源：评论

学校读者我要写书评

暂无评论

Understanding Co2 Adsorption in Layered Double Oxides Synthesized by Slag Through Kinetic and Modelling Techniques

SSRN

引用

SSRN 2023年

作者： Duan, Wenjun Han, Jiachen Yang, Shuo Wang, Zhimei Yu, Qingbo Zhan, Yaquan School of Metallurgy Northeastern University No 11 Lane 3 Wenhua Road Heping District Liaoning Shenyang110819 China College of Energy and Environment Shenyang Aerospace University No. 37 Daoyi South Street Shenbei New District Liaoning Shenyang110136 China National Frontiers Science Center for Industrial Intelligence and Systems Optimization Northeastern University Shenyang110819 China Key Laboratory of Data Analytics and Optimization for Smart Industry [Northeastern University Ministry of Education China

A novel technology for high-value utilization of blast furnace slag, a main by-product in iron and steel industry, was proposed to address CO2 capture. Layered double hydroxides derived from blast furnace slag served as the raw material for producing efficient CO2 adsorbents, referred to as layered double oxides. Detailed investigations were conducted to compare the characteristics of the raw material and the resulting adsorbent. Significantly, the laminate structure of layered double hydroxides changed in microstructure, particle size distribution and functional groups. In thermal transformation, about 30% weight was lost, forming layered double oxides with CaO, Ca12Al14O32Cl2 and MgO phases. The transformation mechanism for preparing layered double oxides was elucidated. Additionally, the CO2 adsorption performance of layered double oxides was studied, and a suitable kinetic model was established. Under conditions of 15% CO2 concentration and 873 K temperature, the sample exhibited a CO2 capacity of approximately 147.49 mg‧g-1. The optimal kinetic mechanism model for CO2 adsorption was identified as PSO, with activation energy and pre-exponential factors of 56.88 kJ‧mol-1 and 12.26 min-1, respectively. This study successfully achieved dual goals: reducing CO2 emissions and maximizing the value of solid waste in iron and steel industry. © 2023, The Authors. All rights reserved.

关键词： Slags

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：