A5037406514- Ferroelectric and Piezoelectric Materials
- Multiferroics and related materials
- Acoustic Wave Resonator Technologies
- Microwave Dielectric Ceramics Synthesis
- Dielectric properties of ceramics
- Dielectric materials and actuators
- Electronic and Structural Properties of Oxides
- Fusion materials and technologies
- Magnetic and transport properties of perovskites and related materials
- Advanced Sensor and Energy Harvesting Materials
- Semiconductor materials and devices
- Perovskite Materials and Applications
- Nuclear Materials and Properties
- Innovative Energy Harvesting Technologies
- Glass properties and applications
- Advanced Materials Characterization Techniques
- Wireless Networks and Protocols
- Mobile Ad Hoc Networks
- Analytical Chemistry and Sensors
- Photorefractive and Nonlinear Optics
- Gas Sensing Nanomaterials and Sensors
- Security in Wireless Sensor Networks
- Catalysis and Oxidation Reactions
- Diamond and Carbon-based Materials Research
- Ultrasound Imaging and Elastography
Shanghai University
2016-2025
Shanghai University of Engineering Science
2007-2022
AbbVie (United States)
2020
Rutgers, The State University of New Jersey
2009-2017
Johnson University
2017
Northwestern University
2009
Pennsylvania State University
1995-2008
University of California, Los Angeles
1988-2004
Huazhong University of Science and Technology
2001
Shanghai Jiao Tong University
2000-2001
Wireless spoofing attacks are easy to launch and can significantly impact the performance of networks. Although identity a node be verified through cryptographic authentication, conventional security approaches not always desirable because their overhead requirements. In this paper, we propose use spatial information, physical property associated with each node, hard falsify, reliant on cryptography, as basis for 1) detecting attacks; 2) determining number attackers when multiple adversaries...
A magnetoelectric laminate composite consisting of magnetostrictive Terfenol-D (Tb1–xDyxFe2–y) and piezoelectric Pb(Zr,Ti)O3 layers has an extremely high voltage gain effect ≈300 at its resonant state, offering potential for high-voltage miniature transformer applications.
Abstract BiFeO 3 ‐BaTiO (BF‐BT) solid solutions are lead‐free candidates for high‐temperature piezoelectric applications. BF‐BT ceramics with compositions near the morphotropic phase boundary (MPB) separating rhombohedral (R) and pseudo‐cubic (PC) phases were fabricated by conventional high temperature sintering method, their thermal stability aging properties studied in detail. show much better than those or coexistence of PC R phases. The degradation rates on order 1% 1.2% per decade,...
The innovations in microwave processing of ceramics have been dominated to date by serendipitous discovery, because the interaction between such radiation as delivered via available tools and materials widely varying properties, sizes, shapes is so complex that it has defied quantitative analysis. For over 10 years a wide variety inorganic ceramic semiconducting synthesized, sintered, reacted our own labs, including hydrothermal synthesis metals, ferrites, electroceramic phases. These local...
Distributed fair queueing in shared-medium ad hoc wireless networks is non-trivial because of the unique design challenges such networks, as location-dependent contention, distributed nature queueing, channel spatial reuse, and scalability presence node mobility. In this paper, we seek to devise new distributed, localized, scalable efficient solutions problem. We first analyze an ideal centralized algorithm developed for extract desired global properties that localized algorithms should...
In recent years, industries in the fields of petrochemical, automotive, and aerospace have expressed their interest utilizing piezoelectric actuators for high-temperature (HT) operations at temperature above 150°C. HT ceramics (1-x) BiScO 3 –x PbTiO (BS–PT) are considered as one most competitive actuation materials used harsh environment because its high Curie (T C = 450° ) well coefficient (d 33 460 pC/N MPB composition. This paper summarized progress based on BS–PT solid solutions. The...
Abstract Effects of quenching process on dielectric, ferroelectric, and piezoelectric properties 0.71BiFeO 3 −0.29BaTiO ceramics with Mn modification (BF–BT− x mol%Mn) were investigated. The BF–BT− mol%Mn improved by quenching, especially to the BF–BT−0.3 ceramics. dielectric loss tanδ quenched was only 0.28 at 500°C, which half slow cooling one. Meanwhile, remnant polarization P r increased 21 μC/cm 2 . It notable that constant d 33 reached up 191 pC/N, while T C 530°C, showing excellent...
A comprehensive understanding of the intrinsic piezoelectric anisotropy stemming from diverse chemical and physical factors is a key step for rational design highly anisotropic materials. We performed high-throughput calculations on tetragonal ABO3 perovskites to investigate overall characteristics their piezoelectricity interplay between lattice, displacement, polarization, elasticity. Among screened 123 types perovskites, structural tetragonality naturally divided into two categories:...
Distributed fair queueing in a multihop, wireless ad hoc network is challenging for several reasons. First, the channel shared among multiple contending nodes spatial locality. Location-dependent contention complicates fairness notion. Second, sender of flow does not have explicit information regarding flows originated from other nodes. Fair over networks distributed scheduling problem by nature. Finally, capacity scarce resource. Spatial reuse, i.e., simultaneous transmissions that do...
0.75BiFeO 3 –0.25Ba(Zr x Ti 1− ) + 0.6 wt% MnO 2 (0.75 BF –0.25 BZT ceramics with Mn addition were prepared by the solid‐state reaction method. The high‐field strain and high‐temperature piezoelectric properties of 0.75 studied. Introduction Zr in solid solutions decreased Curie temperature slightly, improved dielectric obviously. BT reached maximum at content 10 mol%. T c , constant ε loss tanδ (1 kHz), d 33 planner electromechanical coupling factor k p mol% 456°C, 650, 5%, 138 pC/N, 0.30,...
Bismuth containing crystalline solutions (1−x)Bi(Ga1/4Sc3/4)O3–xPbTiO3 (BGS–PT) have been developed using conventional ceramic technology. X-ray diffraction analysis reveals that BGS-PT has a perovskite structure, in which tetragonal to rhombohedral phase transformation appears for x=0.6. The dielectric properties were investigated at room and elevated temperatures, respectively, different PT contents. BGS–PT x=0.6 shows enhancement constant K piezoelectric d33 of 1180 124 pC/N, the...