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Institution

Southeast University

EducationNanjing, China
About: Southeast University is a education organization based out in Nanjing, China. It is known for research contribution in the topics: MIMO & Control theory. The organization has 66363 authors who have published 79434 publications receiving 1170576 citations. The organization is also known as: SEU.


Papers
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Journal ArticleDOI
TL;DR: The pinning control strategies for networks with continuous-time dynamics to discontinuous networks are extended and the Takagi-Sugeno (T-S) fuzzy interpolation approach is applied, demonstrating that the theoretical results are effective and the T-S fuzzy approach is important for relaxed results.
Abstract: This paper is concerned with the cluster synchronization in finite time for a class of complex networks with nonlinear coupling strengths and probabilistic coupling delays. The complex networks consist of several clusters of nonidentical discontinuous systems suffered from uncertain bounded external disturbance. Based on the Takagi–Sugeno (T–S) fuzzy interpolation approach, we first obtain a set of T–S fuzzy complex networks with constant coupling strengths. By developing some novel Lyapunov functionals and using the concept of Filippov solution, some new analytical techniques are established to derive sufficient conditions ensuring the cluster synchronization in a setting time. In particular, this paper extends the pinning control strategies for networks with continuous-time dynamics to discontinuous networks. Numerical simulations demonstrate that the theoretical results are effective and the T–S fuzzy approach is important for relaxed results.

205 citations

Journal ArticleDOI
TL;DR: In this paper, a planar diplexer based on the complementary response characters of substrate integrated waveguide (SIW) dual-mode filters with circular and elliptic cavities is proposed.
Abstract: A novel high-performance millimeter-wave planar diplexer is developed based on the complementary characters of substrate integrated waveguide (SIW) dual-mode filters with circular and elliptic cavities by making the tradeoff between the isolation, insertion loss, and selectivity. The responses of the dual-mode SIW circular and elliptic cavities are first investigated. It can be found that the upper side response of the circular cavity and the lower side response of the elliptic cavity are very steep. The diplexers with high isolation performance are then designed based on the complementary response characters of circular and elliptic cavities. A diplexer with two dual-mode SIW circular and elliptic cavities is designed and fabricated with a normal printed circuit board process. The measured insertion losses are 1.95 and 2.09 dB in the upper and lower passbands centered at 26 and 25 GHz with the fractional bandwidths of 5.2% and 5.4%. The isolation is lower than - 50dB

205 citations

Journal ArticleDOI
TL;DR: Wang et al. as mentioned in this paper investigated the rheological and harden properties of the high-thixotropy 3D printing concrete, and a large-scale components-bus station preliminarily was prepared by using this technology.

205 citations

Journal ArticleDOI
TL;DR: A label-free multiplex detection of tumor markers, Human CA125, CA19-9, and CEA, which showed great significance in early screening and clinical diagnosis of some tumor diseases, show the flexibility and feasibility of the suspension array in clinical applications.
Abstract: In recent years, suspension arrays, which use self-encoded microcarriers as elements, are attracting increasing interest in the field of drug discovery, gene-function analysis, clinical diagnosis, and so on. Compared with the conventional microarrays on a plate, suspension arrays may offer greater flexibility in the preparation of new assays, higher diffusional flux of analytes due to the radial diffusion, less consumption of sample and reagents, and higher sensitivity. One of the key techniques of suspension arrays is encoding. Spectrum is a wellused encoding approach, due to its simplicity both in encoding and decoding. Fluorescent dyes and quantum dots are the main spectrum-encoding elements, and the beads encoded by fluorescence have been commercialized by Luminex and other companies. However, fluorescence dyes tend to be quenched or bleached, and the quantum dots are usually biotoxic. Also, the fluorescence of the carriers can interfere with the signal from the labeling molecules, and as a result affect the detection limit. Photonic crystals have been suggested as a new type of spectrum-encoding carrier, whose code is the characteristic reflection peak originated from the stop-band. As the peak position is based on their periodical structure, the code is very stable, and the fluorescent background is low. These properties render photonic crystals suitable for highly sensitive detection. Conventional planar photonic-crystal carriers have to be properly dispersed and correctly orientated to avoid stacking or standing of the flakes during the decoding process. Recently, we found that these problems might be solved with the use of photonic beads with a 3D structure. Unlike planar photonic-crystal carriers, the photonic beads retain their reflection spectra when the crystals are rotated under light impinging on the crystal surface at a fixed incident angle. This indicates the accurate encoding character of photonic beads. Another key technique for using suspension arrays is target analysis, which is generally realized by detecting the labels attached to the biomolecules. In addition to the high cost imposed by reagents and instruments, the labels, or labeling itself, will hinder the interactions and the activity of biomolecules. Therefore, label-free detection is anticipated. In this paper, we proposed the use of inverse-opaline photonic beads as carriers for suspension arrays. The beads showed large encoding capacity by changing their lattice constant. A label-free multiplex detection of tumor markers, Human CA125, CA19-9, and CEA, which showed great significance in early screening and clinical diagnosis of some tumor diseases including colorectal cancer, gastric cancer, and lung cancer, show the flexibility and feasibility of our suspension array in clinical applications. In addition, both the decoding and bioreaction detection were measurements of the characteristic reflection peak, which rendered the detection and the analyzing apparatus extremely simple. Up to now, attention was devoted to the fabrication of inverseopaline photonic films, and only a few reports on the formation of inverse-opaline photonic beads are available. Template replication and spray-drying with colloidal templates are examples of methods that showed the difficulty in preparing beads with smooth edges and long-range-ordering porous surfaces, due to low surface tension and too fast assembly. Herein, we produced inverse-opaline photonic beads by colloidal crystallization in droplet templates. First, an aqueous suspension containing monodisperse polystyrene spheres and ultrafine silica particles was broken into droplets by oil flows in a microfluidic device, and the droplets were taken into a collection container that was also filled with silicon oil. Then, the polystyrene spheres self-assembled into ordered lattices, and the ultrafine silica particles infiltrated into the interstitial sites between the spheres during the evaporation of water in the droplets. After solidification, the hybrid beads were thoroughly washed with hexane to remove silicon oil. Finally, the hybrid beads were calcined, to remove the polystyrene spheres and improve the mechanical strength of the inverseopaline photonic beads. Generally, the long-range ordering of pores on bead surfaces was important for the optical performance of the inverse-opaline photonic beads. To optimize this performance, change of pore arrangement on the bead surface with varying polystyrene spheres to silica particles volume ratios in the droplet template were investigated. Theoretically, when the polystyrene spheres packed closely to a bead in a face-centered cubic arrangement, and the ultrafine silica particles infiltrated all the interstitial sites between the polystyrene spheres, the volume ratio was about 3.85. In our experiment, however, we found that during the evaporation of water the polystyrene spheres escaped more easily from the droplet templates than silica particles; also, after solidification the silica particles could not infiltrate into all the interstitial sites

204 citations

Journal ArticleDOI
Zhuyuan Wang1, Shenfei Zong1, Wang Li1, Chunlei Wang1, Shuhong Xu1, Hui Chen1, Yiping Cui1 
TL;DR: The high specificity and sensitivity of the assays suggest that the SFJSE method could be developed as a powerful encoding tool for high-throughput bioanalysis with the use of OMQ NPs.
Abstract: A new concept of optical encoding approach, surface enhanced Raman scattering (SERS)-fluorescence joint spectral encoding method (SFJSE), was demonstrated by using organic-metal-quantum dot (QD) hybrid nanoparticles (OMQ NPs) with a nanolayered structure. This method has two distinct characteristics, which make it more feasible to achieve enormous codes in practice, compared with a sole fluorescence- or SERS-based encoding protocol. One of the two characteristics is to use the joint SERS and fluorescence spectra as the encoding elements instead of an individual optical signal, resulting in a broadened optical spectrum range for efficient encoding. The other is to assemble SERS reporters and fluorescent agents onto different layers of OMQ NPs, leading to an easier fabrication protocol when a large number of agents need to be involved into encoding carriers. By conjugating different antibodies to OMQ NPs with varied codes, the potential application of such an encoding system in high-throughput detection has been investigated by multiplex sandwich immunoassays. The high specificity and sensitivity of the assays suggest that the SFJSE method could be developed as a powerful encoding tool for high-throughput bioanalysis with the use of OMQ NPs.

204 citations


Authors

Showing all 66906 results

NameH-indexPapersCitations
H. S. Chen1792401178529
Yang Yang1712644153049
Gang Chen1673372149819
Xiang Zhang1541733117576
Rui Zhang1512625107917
Yi Yang143245692268
Guanrong Chen141165292218
Wei Huang139241793522
Jun Chen136185677368
Jian Li133286387131
Xiaoou Tang13255394555
Zhen Li127171271351
Tao Zhang123277283866
Bo Wang119290584863
Jinde Cao117143057881
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Performance
Metrics
No. of papers from the Institution in previous years
YearPapers
2023228
20221,302
20219,149
20208,667
20197,684
20186,464