A5100445395- Computer Graphics and Visualization Techniques
- 3D Shape Modeling and Analysis
- Computational Geometry and Mesh Generation
- Advanced Numerical Analysis Techniques
- Metal complexes synthesis and properties
- Digital Media and Visual Art
- Innovative Educational Techniques
- Natural Language Processing Techniques
- Medical Image Segmentation Techniques
- Cutaneous Melanoma Detection and Management
- Topic Modeling
- Nonmelanoma Skin Cancer Studies
- Advanced Graph Theory Research
- Radiopharmaceutical Chemistry and Applications
- Advanced Numerical Methods in Computational Mathematics
- Simulation and Modeling Applications
- Mobile Ad Hoc Networks
- Digital Image Processing Techniques
- Vehicular Ad Hoc Networks (VANETs)
- Spinal Fractures and Fixation Techniques
- Image Enhancement Techniques
- Pharmacological Receptor Mechanisms and Effects
- Railway Systems and Energy Efficiency
- Dermatological and COVID-19 studies
- Human Motion and Animation
Henan University
2025
Beijing Electronic Science and Technology Institute
2024
Alibaba Group (China)
2014-2024
Peking Union Medical College Hospital
2024
Chinese Academy of Medical Sciences & Peking Union Medical College
2024
Anhui Medical University
2024
Jilin Agricultural University
2024
National Engineering Research Center for Wheat
2024
Ningxia Medical University
2024
Qingdao University
2024
We propose a novel localized algorithm that constructs bounded degree and planar spanner for wireless ad hoc networks modeled by unit disk graph (UDG). Every node only has to know its 2-hop neighbors find the edges in this new structure. Our method applies Yao structure on local Delaunay [21] an ordering are computed locally. This following attractive properties: (1) it is graph; (2) from above positive constant 19 + 2p/a (3) t-spanner (given any two nodes u v, there path connecting them...
We propose a new geometric spanner, for wireless ad hoc networks, which can be constructed efficiently in distributed manner. It combines the connected dominating set and local Delaunay graph to form backbone of network. This spanner has following attractive properties: (1) is planar graph; (2) node degree bounded from above by positive constant; (3) it both hops length; moreover, we show that, given any two nodes u /spl upsi/, there path connecting them such that its length no more than 6...
In this paper, we tackle the issue of physical adversarial examples for object detectors in wild. Specifically, proposed to generate patterns be applied on vehicle surface so that it's not recognizable by photo-realistic Carla simulator. Our approach contains two main techniques, an Enlarge-and-Repeat process and a Discrete Searching method, craft mosaic-like textures without access neither model weight detector nor differential rendering procedure. The experimental results demonstrate...
The nutritional value of goat milk is determined by the composition its fatty acids, with particular importance placed on role unsaturated acids in promoting human health. CircRNAs have been known to affect acid metabolism through different pathways. In this study, high-throughput sequencing was employed construct expression profiles mammary tissue harvested during dry period and peak lactation stages dairy goats. Differentially expressed circRNAs mRNAs were screened, revealing significantly...
Given a set V of n points in two-dimensional plane, we give an O(n log n)-time centralized algorithm that constructs planar t-spanner for V, [Formula: see text] such the degree each node is bounded from above by text], where 0<α<π/2 adjustable parameter. Here C del spanning ratio Delaunay triangulation, which at most text]. We also show, applying greedy method Ref. [14], how to construct low weighted spanner with ρ(α) 2 (1+∊) and same bound, ∊ any positive real constant. Here,...
We demonstrate, theoretically and experimentally, a new method to measure high-order topological charges (TCs) of Laguerre–Gaussian vortex beams, including the magnitude sign, by analyzing interference intensity patterns. The is determined patterns between beam its conjugate beam, using an improved Mach–Zehnder interferometer with dove prism. Counting number bright petals attests TCs through half petal number. After TC modulated spiral phase plate, sign acquired comparing counting results...
Sparse-view and limited-angle Computed Tomography (CT) are very challenging problems in real applications. Due to the high ill-posedness, both analytical iterative reconstruction methods may present distortions artifacts for such incomplete data problems. In this work, we propose a novel model jointly reconstruct high-quality image its corresponding high-resolution projection data. The is built up by deploying regularization on CT data, as well introducing full-sampling condition fuse...
The multi-mode integrated railway system, anchored by the high-speed railway, caters to diverse travel requirements both within and between cities, offering safe, comfortable, punctual, eco-friendly transportation services. With expansion of networks, enhancing efficiency safety comprehensive system has become a crucial issue in advanced development transportation. In light prevailing application artificial intelligence technologies systems, this study leverages large model technology...
Liver vessel segmentation from contrast CT images is critical in liver surgical planning and navigation. Due to the complex systems, manual of laborious error-prone. In this work we propose deep neural networks that are able perform automatically. Dense image labeling incurred by normal learning based makes it impractical for segmentation. On contrary, our method only requires a few initial voxel-level labels, thus tremendously reduces workload annotating. A small number vessels firstly...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSpectroscopy, photophysical properties, and x-ray crystal structure of platinum(II) complexes quaterpyridineChin Wing Chan, Chi Ming Che, Chu Cheng, Yu WangCite this: Inorg. Chem. 1992, 31, 23, 4874–4878Publication Date (Print):November 1, 1992Publication History Published online1 May 2002Published inissue 1 November 1992https://pubs.acs.org/doi/10.1021/ic00049a028https://doi.org/10.1021/ic00049a028research-articleACS PublicationsRequest reuse...
Abstract A novel method for surface reconstruction from an unorganized point set is presented. An energy functional based on a weighted minimal model proposed reconstruction, which efficiently minimized by graph cut methods. By solving the minimization problem dual to Delaunay‐based tetrahedral mesh, advantages of explicit and implicit methods are well integrated. triangular mesh homeomorphic original can be extracted directly provided sufficient sampling density exists. Difficult cases...
Reaction of [ReNCl2(PPh3)2] and [ReO2(PPh3)2I] with a variety phosphines arsines, L, yielded the respective complex cations [ReNL2Cl]+ trans-[ReO2L2]+. The X-ray crystal structures [ReN(dpae)2Cl]+ trans-[ReO2(dadpe)2]+[dpae = 1,2-bis(diphenylarsino)ethane, dadpe 1-diphenylarsino-2-diphenylphosphinoethane] have been determined: [ReN(dpae)2Cl]+, monoclinic, space group Cc, a= 10.362(2), b= 22.823(5), c= 21.363(6)Å, β= 92.74(2)°, Z= 4; trans-[ReO2(dadpe)2]+, 9.868(3), 22.608(5), 21.887(8)Å,...
A novel graph-cuts-based method is proposed for reconstructing open surfaces from unordered point sets. Through a Boolean operation on the crust around data set, surface problem translated to watertight within restricted region. Integrating variational model, Delaunay-based tetrahedral mesh and multiphase technique, can reconstruct robustly effectively. Furthermore, reconstruction with domain decomposition presented, which based new method. This handle more general surfaces, such as...
Abstract A new alkaloid, 2-methylimidazo[1,5-b]isoquinoline-1,3,5(2H)-trione, was isolated from the EtOAc extract of marine-derived fungus Hypocrea virens. Its structure confirmed by spectroscopic methods (1D and 2D NMR, MS). Keywords: fungusalkaloid virens Acknowledgements This work supported National High Technology Research Development Program China (863 Program; grant no. 2007AA09Z413; 2007AA09Z435) Natural Science Foundation (grant 20872094).
In wireless ad hoc networks, each device has a transmission range, which is usually modeled as disk centered at this node. A node can send message directly to all nodes lying inside disk. We present several intersection graphs model the networks. Then we some simple heuristics and/or PTASs approximate maximum independent set, minimum vertex cover and graph coloring in these models.
Emotions are closely related to people's work and life. Emotional analysis recognition is not only an urgent need solve certain mental illnesses, but also has broad application prospects in the fields of human-computer interaction, entertainment medical care. Therefore, it great value classify emotional EEG signals. This paper introduces CNN(Convolutional Neural Networks)into process recognition. The innovation this method adjustthe convolution kernel CNN adapt input classification accuracy...