A5036291659- Retinal Imaging and Analysis
- Mineral Processing and Grinding
- Image and Video Quality Assessment
- Metal-Organic Frameworks: Synthesis and Applications
- Advanced Condensed Matter Physics
- Molecular Junctions and Nanostructures
- Image and Signal Denoising Methods
- Retinal Diseases and Treatments
- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Gastrointestinal Bleeding Diagnosis and Treatment
- biodegradable polymer synthesis and properties
- Advanced Image Processing Techniques
- Vacuum and Plasma Arcs
- Force Microscopy Techniques and Applications
- Lignin and Wood Chemistry
- Electrocatalysts for Energy Conversion
- Quantum and electron transport phenomena
- Electronic and Structural Properties of Oxides
- Advanced NMR Techniques and Applications
- Surface Chemistry and Catalysis
- Plasma Diagnostics and Applications
- Advanced Cellulose Research Studies
- Diamond and Carbon-based Materials Research
- Facial Rejuvenation and Surgery Techniques
Shijiazhuang Tiedao University
2025
China University of Petroleum, East China
2024-2025
Tianjin University of Science and Technology
2023-2025
Peking University
2013-2024
Westlake University
2024
Ohio University
2018-2024
Argonne National Laboratory
2019-2024
Zhejiang University
2014-2020
Zhejiang Province Institute of Architectural Design and Research
2014-2019
State Key Laboratory of Nuclear Physics and Technology
2014-2016
Many common eye diseases and cardiovascular can be diagnosed through retinal imaging. However, due to uneven illumination, image blurring, low contrast, images with poor quality are not useful for diagnosis, especially in automated analyzing systems. Here, we propose a new enhancement method improve color luminosity contrast.A luminance gain matrix, which is obtained by gamma correction of the value channel HSV (hue, saturation, value) space, used enhance R, G, B (red, green blue) channels,...
Telemedicine and the medical "big data" era in ophthalmology highlight use of non-mydriatic ocular fundus photography, which has given rise to indispensable applications portable cameras. However, case image quality is more vulnerable distortions, such as uneven illumination, color distortion, blur, low contrast. Such distortions are called generic distortions. This paper proposes an algorithm capable selecting images fair that would be especially useful assist inexperienced individuals...
PBAT, i.e., poly(butylene adipate-co-terephthalate), has its drawbacks of slower crystallization rate, lower crystallinity degree, and modulus elasticity features. In this study, OMCC/PBAT complexes were obtained by blending modifications microcrystalline cellulose with octadecylamine (OMCC) PBAT in a melt. OMCC significantly enhances the degree as nucleating agent. The kinetics nonisothermal for composites investigated, activation energy was calculated. It showed that speeds up rate cuts...
Abstract Synthetic molecular machines designed to operate on materials surfaces can convert energy into motion and they may be useful incorporate solid state devices. Here, we develop characterize a multi-component propeller that enables unidirectional rotations material surface when energized. Our is composed of rotator with three blades linked via ruthenium atom ratchet-shaped gear. Upon adsorption gold crystal surface, the two dimensional nature breaks symmetry left or right tilting...
Two-dimensional conjugated coordination polymers exhibit remarkable charge transport properties, with copper-based benzenehexathiol (Cu-BHT) being a rare superconductor. However, the atomic structure of Cu-BHT has remained unresolved, hindering deeper understanding superconductivity in such materials. Here, we show synthesis single crystals Cu3BHT high crystallinity, revealing quasi-two-dimensional kagome non-van der Waals interlayer Cu-S covalent bonds. These intrinsic metallic behavior,...
Abstract Poly(butylene adipate-co-terephthalate) (PBAT) is a synthetic biodegradable thermoplastic copolyester. In this study, we aimed to enhance lignin’s compatibility with PBAT for polymerization. Epoxidized soybean oil (ESO) was introduced as an interfacial modifier improve lignin-PBAT interactions. A lignin/ESO/PBAT composite film fabricated via solvent-free one-pot method using torque rheometry. ESO formed dynamic covalent bonds between lignin and PBAT, promoting dispersion. When 5 wt%...
Purpose: To propose a novel approach for automated measurements of margin reflex distance (MRD) using digital image analysis and to evaluate the agreement between manual MRD.Materials Methods: This observational study included 132 eyes 66 volunteers referred an oculoplastic clinic blepharoptosis. Preoperative facial photographs participants were taken. MRD1 MRD2 measured manually by senior surgeon automatically our image-based algorithm. Correlation analyses Bland–Altman performed two...
Complexes containing rare-earth ions attract great attention for their technological applications ranging from spintronic devices to quantum information science. While charged coordination complexes are ubiquitous in solution, they challenging form on materials surfaces that would allow investigations potential solid-state applications. Here we report formation and atomically precise manipulation of a gold surface. Although composed multiple units held together by electrostatic interactions,...
Abstract Rare‐earth complexes are vital for separation chemistry and useful in many advanced applications including emission energy upconversion. Here, 2D rare‐earth clusters having net charges formed on a metal surface, enabling investigations of their structural electronic properties one‐cluster‐at‐a‐time basis using scanning tunneling microscopy. While these ionic highly mobile the surface at ≈100 K, mobility is greatly reduced 5 K reveals stable self‐limiting clusters. In each cluster,...
A no-reference objective metric for image quality assessment by integrating the topographic independent components analysis into feature extraction is presented. By taking relationship among initially features consideration, it extracts of more sparsity or independency which essentially related to inherent quality. Evaluation results demonstrate that proposed able predict accurately across various distortion types.
A novel full‐reference image quality assessment metric employing statistical local correlation as an indicator for quantification is presented. The extracted in a wavelet domain and pooled into objective score. Simulation testing results demonstrate that the proposed method not only outperforms other methods terms of high accuracy prediction, but also consistent with subjective evaluations.
Retinal imaging is an important and effective tool for detecting retinal diseases. However, degraded images caused by the aberrations of eye can disguise lesions, so that a diseased be mistakenly diagnosed as normal. In this work, we propose new image enhancement method to improve quality images.A used enhance degraded-quality fundus images. method, converted from input RGB colour space LAB then each normalized component enhanced using contrast-limited adaptive histogram equalization. Human...
Abstract Many‐body interactions in condensed matter could lead to emergent phenomena spanning superconductivity, ferromagnetism, exciton condensation, etc . The emergence of these often requires highly ordered spatial arrangements the interacting species enforce specific space symmetries and strengths. Metal−organic frameworks (MOFs), crystalline materials formed by self‐assembly metal ions organic ligands, allow for precise design their crystal structures sophisticated tuning Coulombic...
We have developed a new computed tomography (CT)-based 3-D volume difference reconstruction (VDR) method for building model of soft tissue differences using facial self-referenced prototyping computation, and computer-aided design (CAD) workflow fabricating custom ocular prostheses (COPs). In an prosthesis is constructed from combination top surface, shape contour, bottom with key measurements being made respect to the patient's healthy eye. The surface derived outer region eyeball, Hough...
An arc discharge with channel diameters of 3 mm and 6 lengths between 30 60 was experimentally investigated for its potential to function as plasma window, i.e., interface vacuum regions different pressures. Electron temperature the measured spectroscopically varied in range 7000 K 15 000 K, increasing current while decreasing gas flow rate. That window had a slightly positive I-V characteristics over whole A–70 A. Measurements pressure separation capability, which were determined by input...
Two-dimensional conjugated coordination polymers (2D c-CPs) exhibit exceptional charge transport properties. Among them, copper-based benzenehexathiol polymer (Cu-BHT) is a rare superconductor. However, the precise atomic structure of Cu-BHT remains elusive, hindering understanding origin superconductivity in 2D c-CPs. Here, single crystals Cu3BHT with high crystallinity have been achieved, revealing quasi-2D kagome non-van der Waals interlayer Cu-S covalent bonds. crystal exhibits intrinsic...
Stomach bleeding is a kind of gastrointestinal disease which can be diagnosed noninvasively by wireless capsule endoscopy (WCE). However, it requires much time for physicians to scan large amount WCE images. Alternatively, computer-assisted localization systems are developed where color, edge, and intensity features defined distinguish lesions from normal tissues. This paper proposes saliency-based system three saliency maps computed: phase congruency-based edge map derived Log-Gabor filter...
Abstract The three main serpentine minerals, chrysotile, lizardite, and antigorite, form in various geological settings have different chemical compositions rheological properties. accurate identification of minerals is thus fundamental importance to understanding global geochemical cycles the tectonic evolution serpentine-bearing rocks. However, it challenging distinguish specific species solely based on data obtained by traditional analytical techniques. Here, we apply machine learning...