A5101871477- Advanced Optical Network Technologies
- Optical Network Technologies
- Advanced Photonic Communication Systems
- Advancements in Battery Materials
- Electromagnetic Compatibility and Measurements
- Electrochemical Analysis and Applications
- Software-Defined Networks and 5G
- Power Line Communications and Noise
- Radio Wave Propagation Studies
- Advanced battery technologies research
- Advanced Antenna and Metasurface Technologies
- Interconnection Networks and Systems
- Electromagnetic Scattering and Analysis
- Advanced Fluorescence Microscopy Techniques
- Network Traffic and Congestion Control
- TiO2 Photocatalysis and Solar Cells
- Stock Market Forecasting Methods
- Solid State Laser Technologies
- Layered Double Hydroxides Synthesis and Applications
- Financial Markets and Investment Strategies
- Transition Metal Oxide Nanomaterials
- Quantum Dots Synthesis And Properties
- Advanced Chemical Sensor Technologies
- GaN-based semiconductor devices and materials
- Extraction and Separation Processes
Chongqing University
2023
Guangdong Technion-Israel Institute of Technology
2021-2023
Nanjing University of Aeronautics and Astronautics
2022-2023
Aviation Industry Corporation of China (China)
2023
Shihezi University
2019-2020
Xinjiang Production and Construction Corps
2019-2020
Hainan University
2015
Shanghai University
2011
Shanghai Jiao Tong University
2002-2006
Tongji University
2005
Single and multiphoton absorptions in wide band gap semiconductors determine the functionality of photodetectors, lasers, light-emitting diodes (LEDs). Although electronic structure strongly influences different orders semiconductors, it has not been feasible to quantify their contributions on devices. A lack proper measurement techniques hurdle. Here, we present a simple sensitive method based phase modulation femtosecond pulses single-, two-, three-photon GaP InGaN photodetectors. Our...
Macroporous nanocast perovskites, LaFe 1− x Ni O 3 ( = 0.3, 0.5, and 0.7), were synthesized by using a nanocasting technique with SBA-15 as template applied to methane dry reforming (MDR). The prepared catalysts characterized X-ray diffraction, transmission electron microscopy, specific-surface-area analysis, hydrogen temperature-programmed reduction, thermogravimetric analysis. revealed large specific surface area, which could enhance its catalytic activity. reduced Ni/LaFeO -La 2 in the...
The radar cross-section (RCS) of power lines has an important significance for detection the lines. method moments (MoM) can calculate RCS However, efficiency MoM is limited by time-consuming computing process, as well expensive storage overhead. In order to enhance and reduce calculation lines, we propose that combines characteristic mode (CM) with a Sherman–Morrison–Woodbury formula-based algorithm (SMWA), which referred CM-SMWA. CMs are used basis functions reducing dimension impedance...
TiO2 nanoparticles (NPs) with high-photocatalysis properties both in ultraviolet and visible-light regions were synthesized via a simple sol-gel method, an aloe leaf extract (ALE) was used as the cap. When Ti(OC4H9)(4):(CH3)(2) CHOH:ALE volume ratio equal to 0.5:8:40, reaction time 6 h, crystallization occurred at 80 degrees C for 2 TiO(2)NPs had been synthesized. XRD analysis showed that structure of without thermal treatment anatase. Transmission electron microscopy images confirmed their...
Abstract A novel power line detection method exploiting the Bragg point of is proposed in this paper. First, radar echo divided into multi‐band along frequency dimensional with incomplete repetition at equal intervals. Then, candidate lines each band can be found Hough transform and constant false alarm rate (CFAR). Since angle will change while that artefacts fixed, easily detected from background by unique feature line.
Abstract Semiconductor quantum dot (QD) arrays can be useful for optical devices such as lasers, solar cells and light-emitting diodes. As the size distribution influences band-gap, it is worthwhile to investigate QDs prepared using different solvents because each of them could influence overall morphology differently, depending on ligand network around individual QDs. Here, we follow nucleation growth gold (Au) CdSe QD surface ligands thereby realized interparticle distance between Au...
Power lines are the biggest threat to helicopters flying at low altitudes, so detection of power is great significance helicopter safety. This paper proposes a Bragg feature method for based on broadband features. The first obtains radar echo data through FMCW lines. Then, segmented, echoes different frequency bands formed by distance FFT, and characteristic points candidate echoed in accurately measured. Finally, angle changes frequencies, it confirmed whether point line, then...
We consider the problem of designing a network consisting optical cross connects (OXCs) to provide end-to-end lightpath services for label switched routers (LSRs). Unlike previous work, we take into account fault-tolerant ability both physical and logical topologies. In addition, present novel routing policy that combines shortest-path principle minimal-congestion rule. At same time, employ different wavelength assignment strategies working lightpaths protection lightpaths. adopt tabu search...
In this paper we consider the problem of designing a network optical cross-connects(OXCs) to provide end-to-end lightpath services label switched routers (LSRs). Like some previous work, select number OXCs as our objective. Compared with studies, take into account fault-tolerant characteristic logical topology. First all, using Prufer randomly generated, generate tree. By adding edges tree, can obtain physical topology which consists certain and fiber links connecting OXCs. It is notable...
The existing methods for calculating electromagnetic scattering can be used to obtain the RCS of power lines. However, these do not take advantage periodicity We propose a fast calculation method combining integral equation discontinuous Galerkin (IEDG) and characteristic modes-Sherman–Morrison–Woodbury algorithm (CM-SMWA) exploiting lines with stranded structure. adopt IEDG discretize electric field (EFIE) so that EFIE deal non-conformal grids significantly increase flexibility CM-SMWA....
A novel multistage optical cross-connect (OXC) that combined the advantages of three technologies Space Division Switching (SDS), Wavelength (WDS), and Optical Time-Division Multiplexing (OTDM) has been proposed. The structures first second stages a 2 X 4 OXC have presented. By means splitter delivery (SAD) switch, it is cost-effective fully modularized very convenient to scale n OXCs suitable for large-scale backbones.
As a new solution of all optical networks, Optical burst switching (OBS) has been wildly studied in recently years for its high traffic throughput and resource utilization at current technology level. In this paper we address some issues efficient contention resolution: segmentation deflection routing. Under the Just-Enough-Time (JET) protocol based OBS networks architecture, control packet is guider corresponding data during transmission. Taking these into consideration, here propose novel...
To cater for the burst characteristic of IP traffic, WDM networks are expected to reconfigure virtual topologies corresponding real-time changes traffic flow. This paper introduces elementary algorithms topology reconfiguration. Compared each other, we point out their advantages and disadvantages. Then our focuses on tradeoff between benefits costs brought by reconfiguration topologies. We present a evaluation function two thresholds, namely lower higher. Our presented approach balances due...
In the physical topology design, number of OXCs and/or links is takes as objective. this paper, we take aim at minimizing maximal optical port each OXC, given and traffic. We present a traffic-oriented heuristic algorithm to generate an initial topology. This presented outperforms previous algorithm, since our into account traffic pattern. Furthermore, routing strategy that balance between shortest-path least-congestion routing. The tabu adopted attain optimal solution. choose path-based...
In this paper we investigate the fairness problem of offset-time-based quality service (QoS) scheme proposed by Qiao and Dixit in optical burst switching (OBS) networks. schemes, QoS relies on fact that requests for reservation further into future, but practical, benchmark offset-time data bursts at intermediate nodes is not equal to each other. Here, a new introduced, where are classified according their isolated wavelength domain or time achieve parallel reservation. Through simulation, it...