A5101504355- Acoustic Wave Resonator Technologies
- Advanced Surface Polishing Techniques
- Ultrasound Imaging and Elastography
- Metal and Thin Film Mechanics
- Photoacoustic and Ultrasonic Imaging
- Diamond and Carbon-based Materials Research
- Advanced Measurement and Detection Methods
- Metaheuristic Optimization Algorithms Research
- CCD and CMOS Imaging Sensors
- Image and Video Stabilization
- Metal Alloys Wear and Properties
- GaN-based semiconductor devices and materials
- Calibration and Measurement Techniques
- Advanced Algorithms and Applications
- Infrared Target Detection Methodologies
- Electric Vehicles and Infrastructure
- Advanced Image and Video Retrieval Techniques
- Soft Robotics and Applications
- Radio Wave Propagation Studies
- Analytical Chemistry and Sensors
- Shoulder Injury and Treatment
- Advanced Multi-Objective Optimization Algorithms
- Teleoperation and Haptic Systems
- Evolutionary Algorithms and Applications
- Advanced materials and composites
Wuhan University
2023-2024
Jishou University
2024
Beijing Institute of Technology
2024
Xi'an Shiyou University
2011-2024
China Tobacco
2024
Beijing Advanced Sciences and Innovation Center
2019-2020
Beihang University
2008-2020
Wuhan University of Technology
2012
Chengdu University of Information Technology
2010
Institute of Optics and Electronics, Chinese Academy of Sciences
2010
Abstract One of the focal points in field intelligent transportation is control traffic signals (TS), aimed at enhancing efficiency urban road networks through specific algorithms. Deep Reinforcement Learning (DRL) algorithms have become mainstream, yet they suffer from inefficient training sample selection, leading to slow convergence. Additionally, model robustness crucial for adapting diverse conditions. Hence, this paper proposes an enhanced method signal (TSC) based on DRL. This...
The film bulk acoustic wave resonator (FBAR) is one of the most popular devices in radio frequency field. Numerous researchers are simultaneously working to develop an effective electromechanical coupling coefficient (keff2) tuning technology, aiming meet diverse bandwidth requirements 5 G era. Based on a traditional FBAR process, this work prepares several different and then analyzes four factors that influence keff2 from perspective material, design. pillar structure achieves largest range...
Temperature monitoring in extreme environments presents new challenges for MEMS sensors. Since aluminum nitride (AlN)/scandium (ScAlN)-based surface acoustic wave (SAW) devices have a high Q-value, good temperature drift characteristics, and the ability to be compatible with CMOS, they become some of preferred wireless passive measurement. This paper development AlN/ScAlN SAW-based Three methods were used characterize characteristics thin-film SAW resonator, including direct measurement by...
A new measure for objective speech quality evaluation based on the improved generalized congruence neural network (GCNN/OSQE) is proposed, which needs less training time and has better performance. Compared with radial basis function (RBFNN/OSQE), besides owning all merits of RBFNN/OSQE, GCNN/OSQE many more merits: higher correlation, smaller standard deviation, saving about 1/3 time. In all, results assessment show that proposed feasible effective.
To improve the positioning accuracy of tunnels for anterior cruciate ligament (ACL) reconstruction, we proposed an ACL reconstruction robotic system based on anatomical characteristics. The includes a preoperative path planning system, intraoperative and navigation system. Brahmet line, anterior, posterior cortical lines are used registration computed tomography (CT) images X-ray images. A new calibrator C-arm is applied to establish mapping between medical surgical space. Tunnels can be...
Monitoring the changes of food products with easily applicable technique is important for quality control products. Cigar wrapper and filler get moldy due to existence native bacterial in material moisture storage/production condition. Herein, we investigate volatile compounds produced during culture tobacco using chromatography-ion mobility spectrometry (GC-IMS). 114 112 are determined GC-IMS cultured cigar filler, respectively. Detailed fingerprint analysis principal component identify a...
This manuscript introduces an improved Cuckoo Search (CS) algorithm, known as BASCS, designed to address the inherent limitations of CS, including insufficient search space coverage, premature convergence, low accuracy, and slow speed. The proposed improvements encompass four main areas: integration tent chaotic mapping random migration in population initialization reduce impact errors, guidance Levy flight by directional determination strategy Beetle Antennae (BAS) algorithm during global...
This manuscript presents ABSAS-CS-GSA, an improved iteration of the beetle antennae search (BAS) algorithm, tailored to address shortcoming BAS with low convergence accuracy and easily falling into local optima. The improvements are structured three principal components: first, dynamic step-size adjustment predicated on initial population bolster solution expedite convergence; second, position update mechanism integrating golden sine algorithm diversify patterns third, disturbance based...
An electronic instrument which is called automobile parameters recorder can real-time gather and record the driving conditions, very important to safety analysis of traffic accident responsibility. The working environment severe its external disturbance strong. In order insure proper operation, strong anti-interference ability must be needed. structure, principle, speed calculating methods, software designing strategies system are mainly presented in this paper.
For features of synchronous orbit target image, this paper proposes the small detection method that based on Normalized moment inertia feature. Firstly, uses gray mathematical morphological filter to pre-process improves signal noise ratio without affecting shape, and then constant false alarm rate (CFAR) choose segmentation threshold for image binarization further remove interference. Then location information each pixel are obtained by binary tags, using candidate calculate relative...
Although ultrasound imaging has been widely applied in medical diagnosis for decades, the data processing remains primitive. Traditional B-mode exhibits amplitude of scattered ultrasonic signals as brightness images, neglecting rich information delivered by frequency modulation signals. The variation spectrum contains nonlinear vibrations which are specific given tissues. We hypothesize that detailed analysis and characterization enable software to recognize from different organs or diseased...
Conventional ultrasound imaging technology used the amplitude information in ultrasonic linear signal to form grayscale images. Doctors identified tissues images by their structures. Due requirement of specific positions and orientations probe, this method relied heavily on doctor's experience resulted a high misdiagnosis rate. Compared with signal, nonlinear contained more such as frequency phase that can be imaging. So we proposed spectral-based color technique based vibration paper....
This paper proposes a heterogeneous structure-based surface acoustic wave resonator for gas sensing. The lithium niobate thin film based on stacked structure is chosen as the piezoelectric layer, which has advantage of suppressing energy leakage compared to conventional bulk crystals. A two-port configured with sensing component polyisobutylene (PIB) designed absorbing dichloromethane (DCM) in atmosphere and coupling transverse wave. two-dimensional analysis performed investigate resonant...