A5080563649- Computational Geometry and Mesh Generation
- Advanced Graph Theory Research
- Point processes and geometric inequalities
- Digital Image Processing Techniques
- Algorithms and Data Compression
- Complexity and Algorithms in Graphs
- Genome Rearrangement Algorithms
- Photonic and Optical Devices
- Optimization and Packing Problems
- Advanced Numerical Analysis Techniques
- DNA and Biological Computing
- Semiconductor Lasers and Optical Devices
- Graph Labeling and Dimension Problems
- Mathematical Approximation and Integration
- Phase-change materials and chalcogenides
- RNA and protein synthesis mechanisms
- Optimization and Search Problems
- Genomics and Phylogenetic Studies
- Data Management and Algorithms
- graph theory and CDMA systems
- Nonlinear Optical Materials Studies
- Robotic Path Planning Algorithms
- 3D Shape Modeling and Analysis
- Limits and Structures in Graph Theory
- Liquid Crystal Research Advancements
Huazhong University of Science and Technology
2025
Guilin University of Electronic Technology
2024
China Three Gorges University
2010-2024
Tongji University
2023
Tianjin University
2022
Convergence
2022
University of Science and Technology Beijing
2022
Jilin University
2015-2021
State Key Laboratory on Integrated Optoelectronics
2015-2021
Changsha University of Science and Technology
2021
Randomly shuffled sequences are routinely used in sequence analysis to evaluate the statistical significance of a biological sequence. In many cases, biologists need sophisticated shuffling tools that preserve not only counts distinct letters but also higher-order statistics such as doublet counts, triplet and, general, k-let counts. We present tool (named uShuffle) for generating uniform random permutations (such DNAs, RNAs, and proteins) exact The uShuffle implements latest variant Euler...
Matching two geometric objects in two-dimensional (2D) and three-dimensional (3D) spaces is a central problem computer vision, pattern recognition, protein structure prediction. In particular, the of aligning polygonal chains under translation rotation to minimize their distance has been studied using various measures. It well known that Hausdorff useful for matching point sets, Fréchet superior measure chains. The discrete closely approximates (continuous) distance, natural similarity...
Recently, vehicle type recognition in surveillance images with deep learning has received significant attention various applications of intelligent transportation systems. However, annotating large-scale from many is tedious and time-consuming, which impedes its application the real world. This paper aims to resolve this problem by reducing manual labeling images, then maximizing effect few tagged data. Thus, a active method new query strategy proposed for images. First, constructs memory...
Abstract Aortic aneurysm and dissection (AAD) is a multifaceted condition characterized by significant genetic predisposition considerable contribution to cardiovascular-related mortality. Previous studies have suggested that AAD subtypes share similar mechanisms, however, these investigated the separately. Here, we performed large genome-wide association study (GWAS) meta-analysis for combining its subtypes, including 11,148 cases 708,468 controls of European ancestry. We identified 24...
Quickly switching among different states (levels) is crucial for reconfigurable metamaterials and devices. In this study, the dynamics of establishment transformation five amorphous or near-amorphous intermediate with obvious optical contrasts on Ge2Sb2Te5 phase-change thin films driven by ultrashort laser pulses were investigated using real-time reflectivity measurements. The reversible coding-recoding levels was realized single-shot picosecond designed fluences. constants, crystalline...
Fluorophenethyl ammonium bromide is introduced in the synthesis of CsPbBr 3 QDs and influence fluorination position ( ortho , meta para ) at benzene ring on optical properties stability systematically evaluated.
Given two genomes with duplicate genes, Zero Exemplar Distance is the problem of deciding whether can be reduced to same genome without genes by deleting all but one copy each gene in genome. Blin, Fertin, Sikora, and Vialette recently proved that for monochromosomal NP-hard even if appears at most times genome, thereby settling an important open question on rearrangement exemplar model. In this article, we give a very simple alternative proof result. We also study multichromosomal order,...
By exploiting the electro-absorption characteristic of graphene, we proposed and theoretically demonstrated an optical modulator (EOM) based on graphene-buried polymer waveguides. burying graphene layers inside waveguide, acquiring a strong graphene-light interaction when buried in center core, which bring about important change mode effective index waveguide. The width capacitor was also optimized to enhance bandwidth device. Calculations show that EOM can realize 29 dB extinction ratio, 7...
We study three closely related problems motivated by the prediction of RNA secondary structures with arbitrary pseudoknots: problem 2-Interval Pattern proposed Vialette, Maximum Base Pair Stackings Leong et al., and Stacking Pairs Lyngsø. For Pattern, we present polynomialtime approximation algorithms for over preceding-and-crossing model on input unitary restriction. Pairs, polynomial-time two explicit candidate base pairs. also propose a new called Length-Weighted Balanced which is natural...
Given two genomes possibly with duplicate genes, the exemplar distance problem is that of removing all but one copy each gene in genome, so as to minimize between reduced according some measure. Let (s; t) denote on G <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">1</sub> and xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> , where occurs at most s times t . We show simplest nontrivial variant problem, (1,2)-EXEMPLAR DISTANCE, already hard...
We design and fabricate a thermo-optic waveguide switch based on the configuration of balanced Mach-Zehnder interferometer optimized for fast operation. The structure waveguides consists two core layers with lower layer formed high-index organic-inorganic hybrid material DR1/SiO2-TiO2. allows mode field to be confined in an area heat removal, formation index tapers expand at ends device facilitate butt-coupling single-mode fibers. Our typical fabricated shows same rise time fall 80 μs low...
In this study, the controllable effective refractive index modulation of Sb70Te30 phase-change thin films between amorphous and crystalline states was achieved experimentally by multiple femtosecond laser pulses. The mechanism analyzed comprehensively a spectral ellipsometer measurement, surface morphology observation, two-temperature model calculations. We numerically demonstrate application optically modulated in precisely adjustable color display. These results may provide further...
We proposed and designed an ultra-sensitive polymeric waveguide temperature sensor based on asymmetric Mach-Zehnder interferometer that has different widths in the two arms. A polymer with a larger thermo-optic coefficient (TOC) was employed to enhance sensitivity of sensor. The influence width difference between arms cladding materials TOCs studied experimentally demonstrated. devices were fabricated by using standard photolithography simple all-wet etching process. When material Norland...
As a kind of chalcogenide alloy, phase change material has been widely used as novel storage medium in optical disk or electrical memory. In this paper, femtosecond pulses are to study the reversible transition processes Cr-doped Sb2Te3 films with different initial states. The SET all induced by multiple and relate increase crystallized partial irradiated spot. When Cr concentration is 5.3 at % 10.5 %, crystallization mechanism still growth-dominated Sb2Te3, which beneficial for high speed...