A5101606564- Advanced Fiber Optic Sensors
- Medical Imaging Techniques and Applications
- Radiation Detection and Scintillator Technologies
- Photonic and Optical Devices
- Nuclear Physics and Applications
- Radiation Therapy and Dosimetry
- Advanced Radiotherapy Techniques
- Radiomics and Machine Learning in Medical Imaging
- Iron and Steelmaking Processes
- Semiconductor Lasers and Optical Devices
- Photonic Crystal and Fiber Optics
- Higher Education and Teaching Methods
- Mineral Processing and Grinding
- Advanced X-ray and CT Imaging
- Fault Detection and Control Systems
- Fuzzy and Soft Set Theory
- Advanced Measurement and Metrology Techniques
- Advanced Photonic Communication Systems
- Advanced Algorithms and Applications
- Advanced X-ray Imaging Techniques
- Network Traffic and Congestion Control
- Advanced Optical Sensing Technologies
- Advanced Algebra and Logic
- Advancements in PLL and VCO Technologies
- Neural Networks Stability and Synchronization
First Hospital of Qinhuangdao
2023-2025
Northeastern University
2010-2025
Shanghai University of Medicine and Health Sciences
2024
Puyang Vocational and Technical College
2024
Tsinghua University
2010-2023
Ministry of Education of the People's Republic of China
2023
Chongqing University of Education
2012-2022
State Key Laboratory of Synthetical Automation for Process Industries
2019-2021
Consejo Superior de Investigaciones Científicas
2014
Ningbo University of Technology
2007-2010
FeO content of sintered ore is an important reference index for measuring the performance ore. It significantly impacts ironmaking process, iron quality, and energy consumption. Aiming at current problem delayed poor accuracy detection results, this article proposes a hybrid network model that incorporates improved complete ensemble empirical mode decomposition with adaptive noise (ICEEMDAN), convolutional neural (CNN), bidirectional long short-term memory (BiLSTM), attention mechanism (AM)...
A strain sensor based on cascaded Sagnac loops with two polarization-maintaining photonic crystal fibers (PMPCFs) has been experimentally demonstrated. Air holes distributed the cross section of PMPCF go through whole fiber, which makes special fiber more sensitive to ambient force compared conventional optical fiber. The lengths PMPCFs are close, but not same, form envelopes total output spectrum and then obtain high resolution detected parameter by Vernier effect. influences difference in...
Zou et al. (2008) [21] presented weighted-average of all possible choice values approach soft sets under incomplete information system in decision making. However, the is hard to understand and involves a great amount computation. In order simplify approach, we present simplified probability directly instead information, demonstrate equivalence between approach. Finally, comparison results show that proposed relatively less computation easier implement as compared with
Micron-sized holes distributed in the cross section of photonic crystal fibers allow integration microfluidic analyte and fiber which makes it possible for rapid effective chemical analysis. The innovation this paper is that polarization states modes vary with wavelength. directions two polarized are nearly 45 degrees horizontal direction at a certain wavelength, then resonance wavelength will appear by Sagnac interferometer. average sensitivity up to −19040 nm/RIU as refractive index varies...
Owing to the uncertainty operation in sintering process, it is easy produce uncertain prediction errors single drum index model, which makes results lack certain reliability. Accurate and reliable of can help improve index. In this paper, a interval estimation method based on light gradient boosting machine (LightGBM) kernel density (KDE) proposed. LightGBM obtain accurate points index, then use KDE estimated The comparison different methods show that has high performance, well quantify...
Motor's abnormal vibration signal includes its fault information, effective testing and analysis of is the key to realize motor diagnosis. Vibration system was put up acquisition, display, analysis, storage replay by using NI-WLS9234 Data Acquisition Card in this paper. Call function wavelet MATLAB combined time-frequency Script node Lab VIEW. The experimental results show that has advantages convenient operation, high reliability, complete good expansibility designed three-phase induction...
Monte Carlo (MC)-based spot dose calculation is highly desired for inverse treatment planning in proton therapy because of its accuracy. Recent studies on biological optimization have also indicated the use MC methods to compute relevant quantities interest, e.g. linear energy transfer. Although GPU-based engines been developed address problems, their efficiency still needs be improved. Also, a large number GPUs not favorable clinical applications. The previously proposed adaptive particle...
A photonic crystal fiber was selectively infiltrated only two of the air holes near core with liquid crystal. The selective infiltration caused geometric asymmetry and created high birefringence. Because asymmetry, response to varying electric field is concerned direction. Sagnac interferometer set investigate tuning characteristics fiber. effective refractive-indices varies due reorientation molecules. highest sensitivity 1.12 nm/V (504 nm/kV/mm) range 7 nm when direction parallel...
Inter-delivery interval (IDI) has been proven to be a factor associated with adverse maternal and neonatal outcomes. However, the optimal IDI in trial of labor after cesarean delivery (TOLAC) remains unclear. We aimed investigate association between major outcomes women who underwent TOLAC.
Since there are many uncertain factors in the actual production process, reliable information cannot be obtained from point prediction results. Therefore, this paper proposes an interval method to evaluate screening index. Firstly, feature engineering algorithms used select most suitable data and variables for modeling. Secondly, based on sequential characteristics of sintering gated cycle unit (GRU) model is make predictions indicators. then kernel density estimation (KDE) algorithm...
Intensity-modulated radiation treatment (IMRT) plan optimization needs beamlet dose distributions. Pencil-beam or superposition/convolution type algorithms are typically used because of their high computational speed. However, inaccurate distributions may mislead the process and hinder resulting quality. To solve this problem, Monte Carlo (MC) simulation method has been to compute all doses prior step. The conventional approach samples same number particles from each beamlet. Yet is not...
The Bragg peak phenomenon empowers proton therapy in targeted dose delivery principle and also critically demands high accuracy of beam’s dispatch track practice. To ensure the accuracy, prompt gamma imaging (PGI) systems were studied for monitoring beams real time. In this work, a dual-head PGI system was proposed optimized with multislit collimators BGO scintillators. then assessed through contrast recovery coefficient (CRC)-variance approach to identify preferred setup. performance...
The design and optimization of a sinter mixture moisture controlling system usually require complex process mechanisms time-consuming field experimental simulations. Based on BP neural networks, new KPCA-GA method is proposed to predict the content sequential values with time more accurately so as derive optimal water addition meet industrial requirements. Firstly, normalized input variables affecting output were dimensionalized using kernel principal component analysis (KPCA), contribution...
We proposed a new and low cost design of time-to-digital converter (TDC) based on Vernier method using only one FPGA EPF10K30ATI144-3 with 1.3 ns timing resolution performance. Neither ECL (emitter-coupled logic) circuit nor high frequency clock was used in this design, which greatly reduced the complication power supply. two oscillators slightly different frequencies to measure small time interval. All functions were implemented low-cost Altera FLEX II Family device. Our preliminary results...
To investigate the changes in CT number (CTN) gross tumour volume (GTV) and organs at risk (OARs) during course of radiation therapy (RT) for nasopharyngeal cancer (NPC).Daily megavoltage (MVCT) data collected from 30 patients with NPC treated a prescription dose 70 Gy 30-33 fractions using helical tomotherapy were retrospectively analyzed. The contours GTV OARs on daily MVCTs obtained by populating planning to manual editing, if necessary. OAR volumes histograms CTN RT delivery...
In this study we investigate the feasibility of performing small animal SPECT imaging on a clinical scanner with dedicate pinhole collimator. Analytical formulae are used to calculate spatial resolution and absolute sensitivity given collimator design scheme. Two optimal designs proposed in terms achieving best trade-off between sensitivity. One consists one single aperture other has 7 pinholes. 7-pinhole scheme, pinholes arranged way that each only covers part region object maximize central...
Let <TEX>$p$</TEX> > 2 be a prime, and let <TEX>$k{\geq}1$</TEX> an integer. <TEX>${\chi}$</TEX> Dirichlet character modulo <TEX>$p$</TEX>, <TEX>$L(s,{\chi})$</TEX> the L-function corresponding to <TEX>${\chi}$</TEX>. In this paper we consider mean values of <TEX>$$\sum_{{\chi}\;mod\;p\\{\chi}(-1)=-1}{\chi}(2^k)|L(1,\chi)|^2$$</TEX>.
The three-layer structure model of the fiber Bragg grating is proposed in this paper. And through experimental study and reasoning calculation to verify three layer optical waveguide model, so sensitivity characteristic wavelength refractive index chemical solution obtained. relationships between concentration shift sucrose, ethanol, Nacl are achieved. Finally shifts with external obtained by experiments. A kind simple structure, small size, good stability, high sensor