A5101758942- Stability and Controllability of Differential Equations
- Structural Health Monitoring Techniques
- Structural Engineering and Vibration Analysis
- Advanced Mathematical Modeling in Engineering
- Structural Load-Bearing Analysis
- Concrete Corrosion and Durability
- Navier-Stokes equation solutions
- Numerical methods for differential equations
- Infrastructure Maintenance and Monitoring
- Civil and Geotechnical Engineering Research
- Structural Behavior of Reinforced Concrete
- Nonlinear Partial Differential Equations
- Probabilistic and Robust Engineering Design
- Geotechnical Engineering and Underground Structures
- Geotechnical Engineering and Analysis
- Advanced Mathematical Physics Problems
- Numerical methods in inverse problems
- Stability and Control of Uncertain Systems
- Innovative concrete reinforcement materials
- Concrete and Cement Materials Research
- Grouting, Rheology, and Soil Mechanics
- Composite Structure Analysis and Optimization
- Computational Fluid Dynamics and Aerodynamics
- Advanced Numerical Methods in Computational Mathematics
- Indoor and Outdoor Localization Technologies
University of Maryland, College Park
2025
Anhui Provincial Center for Disease Control and Prevention
2024-2025
China University of Geosciences
2013-2023
Shandong University of Science and Technology
2022
National University of Defense Technology
2019-2021
Jilin University
1994-2020
University of Bridgeport
2019
Hunan University
2011
Shanghai University of Finance and Economics
2011
Alexandru Ioan Cuza University
2010-2011
With the small sampling length, a novel Direction-of-Arrival (DOA) estimation method based on single programmable metasurface sensor is proposed in this article. Serving as physical random receiver, dynamic generates series of radiation patterns to sense incident signals, which subsequently processed by compressive sensing (CS) orthogonal matching pursuit (OMP) algorithm recover DOA information. A mathematical model first built for theoretical analyses. Furthermore, numerical simulations are...
Severe fever with thrombocytopenia syndrome (SFTS) is an emerging tick-borne infectious disease discovered in the 21st century. Human-to-human transmission of has been documented, but mechanisms require further investigation. Epidemiological investigations and genetic analyses patients were conducted, a retrospective cohort study was performed to analyze potential risk factors for person-to-person transmission. According epidemiologic investigations, 14 secondary cases had clear history...
A novel clustering stabilization diagram combined with self adaptive differential evolution algorithm is proposed to identify the modal parameters of civil engineering structures. Compared traditional diagram, has drawn more attention because it can distinguish physical and spurious modes due its automatic performance. In this paper, a optimize initial centers so as improve diagram. Moreover, paper presents new idea that assurance criterion (MAC) composed mode shapes selected <mml:math...
We present several characterizations, via some weak observability inequalities, on the complete stabilizability for a control system $[A,B]$, i.e., $y'(t)=Ay(t)+Bu(t)$, $t\geq 0$, where $A$ generates $C_0$-semigroup Hilbert space $X$ and $B$ is linear bounded operator from another $U$ to $X$. then extend aforementioned characterizations in two directions: first, unbounded; second, time periodic. also give sufficient conditions, perspective of spectral projections, ensure inequalities. As...
With the recent statistics from a growing number of fatalities due to drowning in swimming pools. Studies show that errors resulting are mainly lack focus lifeguards and guardians, if they present, especially within large underlit In this paper, novel method allowing precise positioning, efficient identification, timely alarms help rescue swimmers proposed. The purpose study is on determining whether or not while pool. Ultrasonic transmitters receivers used determine swimmer position....
Generally, reactive powder concrete (RPC) contains steel fibers often exposed to aggressive environments. Steel in such RPCs are subjected corrosion in-service, which can significantly change the mechanical properties of structural components. In this paper, basalt were used replace for preparing a new fiber modified (BFRPC). The bending resistance BFRPC beams was studied, and crack propagation failure type beam monitored by acoustic emission (AE). During test, evaluated AE. Besides, effects...
Basalt fiber (BF) is a new anti-corrosion and environmentally friendly material, which expected to delay the corrosion process of steel bars improve durability reinforced reactive powder concrete (RPC). The electrochemical method nondestructive testing real-time monitoring technique used characterize behaviors embedded in structures. In this paper, was employed evaluate basalt modified (BFRPC). Besides, crack steel-concrete interface damage (SCID) were considered as typical factors that...
Irregular-shaped bridge is an important component of urban overpass and prone to damage due severe overloading material deterioration. Structural detection necessary prevent failure guarantee the safe operation traffic. For vibration-based methods, mode shape full-scale structure difficult be measured with limited number sensors, while modal frequency can obtained accurately conveniently. This paper aims propose a two-stage scheme for identification using ratios changes uniform load surface...
An exact solution for the title problem was obtained in closed-form fashion considering general boundary conditions. The expressions of moment, shear and coefficient (or factor) cross section under effect arbitrary temperature distribution were first derived. In view these relationships, differential equations Timoshenko beam solved. Second, characteristic carrying several spring-mass systems derived based on continuity force equilibrium conditions at attaching points. Then, correctness...
Firstly, the paper concisely introduces research background of a new kind networked modeling and simulation (M&S) platform based on virtualization technology namely Virtualization-based Simulation Grid. Then its connotation architecture prototype are presented. Furthermore, some solved key techniques typical applications developed by authors introduced, such as resource technique, then discovery scheduling technique etc. It can strengthen capabilities current M&S dynamical resources sharing...
In this work, we utilize the existing Carleman estimates and propagation of smallness from measurable sets for real analytic functions, together with telescoping series method, to establish an observability inequality subsets in time‐space variable parabolic equation Grushin operator some multidimension domains. We can apply show bang–bang property both time optimal norm control problems kind singular equation. Copyright © 2016 John Wiley & Sons, Ltd.
A fuzzy logic system (FLS) is established for damage identification of simply supported bridge.A novel indicator developed based on ratios mode shape components between before and after damage.Numerical simulation a simply-supported bridge presented to demonstrate the memory, inference anti-noise ability proposed method.The divided into eight elements nine nodes, vector at characteristic nodes used as input measurement FLS.Results reveal that FLS can detect training patterns with an accuracy...
This paper presents an analytical solution of the simply supported horizontally composite curved I-beam by trigonometric series considering effect partial interaction in tangential direction. Governing equations and boundary conditions are obtained using Vlasov beam theory principle minimum potential energy. The deflection functions Lagrange multiplier expressed as to satisfy governing constraints at both ends. numerical results deflections forces which this method compared with FEM...
Traditionally, the hinge-jointed plate method and rigid-jointed are always used to calculate transverse distribution influence line of common prefabricated hinged slab bridge (PHSB). However, these two methods ignore effect deck pavement, which can enhance horizontal contact each slab, thus improve whole performance bridge. Because great function pavement played on rigidity (especially for wide bridges), it should be considered during calculation PHSB. In this paper, a modified formula was...
This work is concerned with the approximation to solutions of stochastic Stokes equations by splitting up method. We apply resolvent operator evaluate solution deterministic at endpoints every small interval, and error estimated. <br />