A5101841894- Structural Health Monitoring Techniques
- Aeroelasticity and Vibration Control
- Composite Structure Analysis and Optimization
- Vibration Control and Rheological Fluids
- Pulsars and Gravitational Waves Research
- Probabilistic and Robust Engineering Design
- Gamma-ray bursts and supernovae
- stochastic dynamics and bifurcation
- Acoustic Wave Phenomena Research
- Microwave Engineering and Waveguides
- Radio Astronomy Observations and Technology
- Astrophysical Phenomena and Observations
- Structural Engineering and Vibration Analysis
- Antenna Design and Analysis
- Machine Fault Diagnosis Techniques
- Structural Load-Bearing Analysis
- Dynamics and Control of Mechanical Systems
- Infrastructure Maintenance and Monitoring
- Chaos control and synchronization
- Mathematical and Theoretical Epidemiology and Ecology Models
- Advanced Image Processing Techniques
- Model Reduction and Neural Networks
- Effects of Vibration on Health
- Bladed Disk Vibration Dynamics
- Advancements in PLL and VCO Technologies
Xidian University
2006-2024
Chinese Academy of Medical Sciences & Peking Union Medical College
2024
Peking Union Medical College Hospital
2024
Yunnan Observatories
2019-2022
Chinese Academy of Sciences
2022
Harbin University
2011-2013
Xuzhou Construction Machinery Group (China)
2012
Inner Mongolia University of Science and Technology
2011
A compact printed ultra-wideband (UWB) monopole antenna with dual band-notched characteristics is presented. One complementary split-ring resonator (CSRR) etched inside the patch of to achieve notch frequency bands. practical example for a UWB (working from 2.90 12 GHz) demonstrated, one band at 3.40–3.48 GHz and other 5.40–5.98 GHz. In addition, effect dimensions CSRR on bands also analysed.
A novel triple-band CPW-fed antenna for WLAN and WiMAX applications is proposed, which can obtain impedance bandwidths of 2.34–2.50, 3.07–3.82, 5.13–5.89 GHz with reflection coefficient less than −10 dB. The proposed has a rectangular ring an S-shaped strip attached to the feedline, crooked U-shaped three straight strips on bottom layer. been successfully simulated, fabricated measured. measured results, agree well simulated ones, show good matching, nearly omnidirectional radiation...
Endometrial cancer, a leading gynecological malignancy, is profoundly influenced by the uterine microbiota, key factor in disease prognosis and treatment. Our study underscores distinct microbial compositions endometrial cancer compared to adjacent non-cancerous tissues, revealing dominant presence of p_Actinobacteria cancerous tissues as opposed p_Firmicutes surrounding areas. Through comprehensive analysis, we identified 485 unique microorganisms 26 which correlate with patient prognosis....
We present our piggyback search for fast radio bursts using the Nanshan 26m Radio Telescope and Kunming 40m Telescope. The observations are performed in L-band from 1380 MHz to 1700 at S-band 2170 2310 Kunming. built \textsc{Roach2}-based FFT spectrometer developed real-time transient software. introduce a new interference mitigation technique named \emph{zero-DM matched filter} give formula of signal-to-noise ratio loss search. Though we have no positive detection about 1600 2400 hours data...
Abstract Background Ovarian serous cystadenocarcinoma, accounting for about 90% of ovarian cancers, is frequently diagnosed at advanced stages, leading to suboptimal treatment outcomes. Given the malignant nature disease, effective biomarkers accurate prediction and personalized remain an urgent clinical need. Methods In this study, we analyzed microbial contents 453 cystadenocarcinoma 68 adjacent non-cancerous samples. A univariate Cox regression model was used identify microorganisms...
In this paper, we investigate the impact of correlated noise on fast radio burst (FRB) searching. We found that 1) significantly increases false alarm probability; 2) signal-to-noise ratios (S/N) positives become higher; 3) also affects pulse width distribution positives, and there will be more with wider width. use 55-hour observation for M82 galaxy carried out at Nanshan 26m telescope to demonstrate application modelling. The number candidates parameter can reproduced modelling noise....
The aim of this paper is to suppress the random spatial vibration face sheet a lightly damped truss core sandwich panel structure. Because broad-bandwidth energy concentrated in resonance peaks for structures, an independent modal resonant shunt control method utilized add damping ratios chosen modes. In method, each piezoelectric transducer connected single which tuned mode. An H2 norm sensitivity-based criterion proposed order determine modes under given bandwidth excitation and...
This paper presents a LMI(linear matrix inequality)-based fuzzy approach of modeling and active vibration control geometrically nonlinear flexible plates with piezoelectric materials as actuators sensors. The large-amplitude characteristics dynamic partial differential equation rectangular thin plate structure are obtained by using generalized Fourier series numerical integral. Takagi-Sugeno (T-S) model is employed to approximate the structural system, which combines inference rule local...
The sensitivity-based finite element model updating method has received increasing attention in damage detection of structures based on measured modal parameters. Finding an optimization technique with high efficiency and fast convergence is one the key issues for updating-based detection. A new simple computationally efficient algorithm proposed applied to by using updating. combines Gauss- Newton region truncation each iterative step, which not only constraints are introduced instead...
In piezoelectric flexible structures, the contribution of vibration modes to dynamic response system may change with location actuator patches, which means that ability actuators control should be taken into account in development modal reduction model. The spatial <TEX>$H_2$</TEX> norm modes, serves as a measure intensity dynamical response, is used pick up included Based on model, paper develops state-space representation for uncertain tructures material non-collocated actuators/sensors...
A semi-analytical method is proposed to calculate stochastic quasi-periodic responses of limit cycles in non-equilibrium dynamical systems excited by periodic forces and weak random fluctuations, approximately. First, a kind 1/N-stroboscopic map introduced discretize the torus into closed curves, which are then approximated points. Using sensitivity function discrete time systems, transverse dispersion these circles can be quantified. Furthermore, combined with longitudinal distribution...
This paper develops linear fractional representations for uncertain flexible structures with non-collocated piezoelectric actuators and sensors in the modal space, taking into account uncertainties due to parameters variation un-modeled residual high-frequency modes. Using matrix inequality, a dynamic output feedback controller is designed suppress vibration external disturbances by setting an upper bound on H-infinity norm from given performance outputs. In order achieve specified decay...
H-infinity norm relates to the maximum in frequency response function and control method focuses on case that vibration is excited at fundamental frequency, while 2-norm output energy of systems with input pulses or white noises weighs overall performance systems. The trade-off between frequency-domain time-domain may be achieved by integrating two indices mixed method. Based linear fractional state space representation modal for a piezoelectric flexible structure uncertain parameters...