A5013741704- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Advanced Image and Video Retrieval Techniques
- Robotics and Sensor-Based Localization
- Domain Adaptation and Few-Shot Learning
- Perovskite Materials and Applications
- Medical Image Segmentation Techniques
- Solid-state spectroscopy and crystallography
- Advanced Neural Network Applications
- Image Retrieval and Classification Techniques
- 2D Materials and Applications
- Image and Object Detection Techniques
- Machine Learning and ELM
- Quantum Dots Synthesis And Properties
- Multimodal Machine Learning Applications
- COVID-19 diagnosis using AI
- Industrial Vision Systems and Defect Detection
- Concrete and Cement Materials Research
- Remote-Sensing Image Classification
- Video Surveillance and Tracking Methods
- Radiomics and Machine Learning in Medical Imaging
- Advanced SAR Imaging Techniques
- Radar Systems and Signal Processing
- Conducting polymers and applications
- Nonlinear Optical Materials Research
Shaanxi University of Science and Technology
2023-2025
Hebei University of Engineering
2023-2025
Shaanxi University of Technology
2023-2024
Griffith University
2020-2024
Kunming University of Science and Technology
2022-2024
National Center for Nanoscience and Technology
2022-2024
Polytechnic University
2024
Xi'an Polytechnic University
2014-2023
Nanchang Hangkong University
2020-2023
Data61
2019-2023
A significant amount of waste is generated during the sandstone mining process. This study explores use red as a supplementary cementitious material to address environmental concerns in cement production. The experimental methods include isothermal calorimetry, compressive strength testing, thermogravimetric analysis, X-ray diffraction, infrared spectroscopy, scanning electron microscopy, high-temperature damage testing (200, 600, and 900 °C), mesoscopic image analysis. findings reveal...
This paper proposes a corner detector and classifier using anisotropic directional derivative (ANDD) representations. The ANDD representation at pixel is function of the oriented angle characterizes local grayscale variation around pixel. proposed fuses ideas contour- intensity-based detection. It consists three cascaded blocks. First, edge map an image obtained by Canny from which contours are extracted patched. Next, each on calculated normalized its maximal magnitude. area surrounded...
Broadband white-light emission with an ultrahigh CRI of 93 based on organic–inorganic hybrid 2D corrugated perovskite.
Lead-free organic–inorganic hybrid perovskites have recently attracted intense interest as environmentally friendly, low-cost, chemically stable light absorbers. Here, we reported a new one-dimensional (1D) zigzag chainlike light-absorbing material of (C6H13N)2BiI5, in which the corner-sharing octahedral bismuth halide chains are surrounded by organic cations tetramethylpiperidinium. This unique 1D perovskite-derivative shows narrow direct band gap 2.02 eV and long-lived photoluminescence,...
High-Curie-temperature (Tc) ferroelectrics have exhibited broad applications in optoelectronic devices. Recently, two-dimensional multilayered perovskite with excellent photoelectric attributes are attracting increasing interest as new systems of photoferroelectrics. However, the effective tuning Tc value a photoferroelectric system still remains huge challenge. Here, by halogen substitution strategy to introduce bromine atoms on n-propylamine cations, hybrid...
Abstract Although organic‐inorganic hybrid perovskites demonstrate promising potentials for photodetection, one great challenge still to be addressed is their relatively low responding speed (often at the magnitude order of ∼ms). Herein, a solution‐processed photodetector based on polar two‐dimensional (2D) multilayered perovskite crystal fabricated, (C 5 H 11 NH 3 ) 2 (CH )Pb I 7 ( EMA , where C + n‐pentylaminium), which exhibits an ultrafast time ≈1.52 μs. This figure‐of‐merit faster least...
Bismuth-based hybrid perovskites have recently attracted great attention for their environmentally friendly processing, chemical stability, and photoresponsive properties. However, most of the known lead-free hybrids show wide band gaps (Eg > 1.9 eV) that afford weak visible-light absorption. Here, we a newly conceptual design strategy intercalating triiodide to decrease prototypic gap by ca. ∼0.44 eV. A new semiconducting material (4-methylpiperidinium)4·I3·BiI6 (MP-T-BiI6), adopting...
Quasi-2D Ruddlesden-Popper (RP) perovskites with superior stability are admirable candidates for perovskite solar cells (PSCs) toward commercialization. However, the device performance remains unsatisfactory due to disordered crystallization of perovskites. In this work, effects sulfonium cations on evolution intermediates and photovoltaic properties 2D RP investigated. The introduction leads preferred intermediate transformation improved film quality resulting devices deliver a champion...
Due to the low content of silicon and aluminum in red mud reaction activity mud, when it was used prepare composite cementitious materials, necessary assist other aluminosilicates improve their by certain methods. In this study, proposed add slag increase percentage system, reactivity system through activation effect sulfate phosphogypsum. The effects phosphogypsum contents on mechanical properties microstructures materials were studied. X-ray diffraction analysis (XRD), thermogravimetric...
Interest point detection methods are gaining more attention and widely applied in computer vision tasks such as image retrieval 3D reconstruction. However, there still exist two main problems to be solved: (1) from the perspective of mathematical representations, differences among edges, corners, blobs have not been convincingly explained relationships amplitude response, scale factor, filtering orientation for interest points thoroughly explained; (2) existing design mechanism does show how...
Abstract Autonomous driving is gradually moving from single-vehicle intelligence to internet of vehicles, where traffic participants can share the flow information perceived by each other. When sensing technology combined with a sensor network all over road provide large-scale data, thus providing basis for building digital twin model. The enable system not only use past and present information, but also predict conditions, more effective optimization autonomous intelligent transportation,...
We reported an inorganic–organic switchable dielectric hybrid, which shows the coexistence of magnetic responses as another potential physical channel to structural phase transition.
Abstract Perovskite hybrids of lead organometal halides, most notably CH 3 NH PbI , have shown extremely promising applications in the field optoelectronics, because their remarkable semiconducting and light‐absorbing properties. However, two key issues—the toxicity poor ambient instabilities—have restrained further commercialization. Herein, we designed a new stable polar lead‐free hybrid material by utilizing strategy cation substitution, [(CH ) N] Bi 2 I 9 ( 1 ), which adopts 0D inorganic...
Image corner detection is very important in the fields of image analysis and computer vision. Curvature calculation techniques are used many contour-based detectors. We identify that existing curvature sensitive to local variation noise discrete domain does not perform well when corners closely located. In this paper, representations single double models investigated obtained. A number model properties have been discovered, which help us detect on contours. It shown proposed method has a...
Few-shot class-incremental learning was introduced to solve the model adaptation problem for new incremental classes with only a few examples while still remaining effective old data. Although recent state-of-the-art methods make some progress in improving system robustness on common datasets, they fail work fine-grained datasets where inter-class differences are small. The is mainly caused by: (1) overlapping of data and feature space during learning, which means samples can be falsely...
Corner detection is a critical component of many image analysis and understanding tasks, such as object recognition matching. Our research indicates that existing corner algorithms cannot properly depict the difference between edges corners this results in wrong detections. In paper, capability second-order generalized (isotropic anisotropic) Gaussian directional derivative filters to suppress noise evaluated. The representations step edge, L-type corner, Y- or T-type X-type star-type are...
Abstract Organic–inorganic lead halides have recently emerged as promising alternatives to conventional optoelectronic materials, considering their intriguing physical properties. However, organic–inorganic featuring chirality are seldom explored. Here, a pair of enantiomorphic hybrid semiconducting halides, ( R ‐C 5 H 14 N 2 )PbBr 4 1R ) and S 2S ), were successfully obtained with the templating chiral amines. These compounds adopt distinct one‐dimensional infinite quantum helices formed by...