A5101454284- Gas Sensing Nanomaterials and Sensors
- Nanowire Synthesis and Applications
- ZnO doping and properties
- Analytical Chemistry and Sensors
- Transition Metal Oxide Nanomaterials
- Robotic Mechanisms and Dynamics
- Fault Detection and Control Systems
- Additive Manufacturing and 3D Printing Technologies
- Semiconductor Quantum Structures and Devices
- 3D Printing in Biomedical Research
- Advancements in Semiconductor Devices and Circuit Design
- Graphene research and applications
- Advanced Chemical Sensor Technologies
- Optical Systems and Laser Technology
- Thermochemical Biomass Conversion Processes
- Solar-Powered Water Purification Methods
- Perovskite Materials and Applications
- Dielectric materials and actuators
- Prosthetics and Rehabilitation Robotics
- Risk and Safety Analysis
- Hydrocarbon exploration and reservoir analysis
- Engineering Technology and Methodologies
- Surface and Thin Film Phenomena
- Soft Robotics and Applications
- Target Tracking and Data Fusion in Sensor Networks
Hohai University
2023
Shanghai University
2016-2022
Zhejiang Sci-Tech University
2022
Research Institute of Petroleum Exploration and Development
2021
Chinese Academy of Sciences
2011-2015
Changchun Institute of Applied Chemistry
2014
University of New Orleans
2009-2014
State Key Laboratory of Polymer Physics and Chemistry
2014
University of Chinese Academy of Sciences
2014
University of Georgia
2014
Abstract A metal‐semiconductor‐metal (M‐S‐M) model for quantitative analysis of current–voltage ( I–V ) characteristics semiconducting nanowires is described and applied to fit experimental curves Bi 2 S 3 nanowire transistors. The are found depend sensitively on the contacts, in particular Schottky barrier height contact area, M‐S‐M shown be able reproduce all experimentally observed using only few fitting variables. procedure decoupling effects from that intrinsic parameters nanowires,...
Single Bi2S3 nanowire devices were fabricated using the focused ion beam technique to deposit Pt electrodes. Repeatable and reliable ohmic contacts obtained. The exhibit outstanding H2 sensing performance that can detect (in N2) at room temperature with a sensitivity of 22% 10 ppm (corresponds 4.0 × 10−7 mol/L). Decorating Pd nanoparticles on surface does not improve performance, contrary most existing (or nanotube) sensors. mechanism is found be different from other sensors based nanowires...
Abstract Microfluidic spinning, as a combination of wet spinning and microfluidic technology, has been used to develop microfibers with special structures facilitate cell 3D culture/co‐culture microtissue formation in vitro. In this study, simple microchip‐based strategy is presented for the fabrication multicomponent heterogeneous calcium alginate microfibers. The use two kinds microchip enables one‐step preparation various arrangement patterns, including one‐, two‐, three‐component by...
Homogenous In2O3 nanoparticles (NPs) with diameters in the range of 6−10 nm were synthesized via a chemical solution method, and assembled on Si substrate for H2S detection. The sensor demonstrates ultrahigh sensitivity to part per billion (ppb) levels at room temperature. Different parameters then investigated terms electrode gap, NP film thickness, surface modification by noble metals. It was found that slightly improved reducing gap or increasing thickness. However, dramatically enhanced...
Nearly lattice matched CdSe/ZnTe type-II core–shell nanowires exhibit wurtzite structures and epitaxial interfaces, promising a number of multifunctional nanodevices.
Nearly monodisperse, variable-shaped In2O3 NCs have been synthesized from different indium−organic precursors in oleyl alcohol solutions at 320 °C under both nitrogen and air atmospheres. When indium(III) acetate (In(ac)3) was employed as the metal precursor, spheroidal with an average diameter of 9.2 nm were obtained a atmosphere, whereas nanoparticles incompletely developed morphology air. Cubic sizes about 7 20 produced atmosphere when acetylacetonate (In(acac)3) isopropoxide (In(OiPr)3),...
3D hollow-carbon-spheres/graphene-flake hybrid nanostructures are controllably prepared from a polypropylene/montmorillonite/Fe3O4 composite by self-assembly and subsequent carbonization process. More importantly, in the resultant structures, monodispersed small hollow carbon spheres can be distributed on graphene flake with controllable density. The obtained show improved performance lithium-ion batteries. As service to our authors readers, this journal provides supporting information...
PVC/graphene nanocomposites with high performance are fabricated by this one-pot method using<italic>n</italic>-BuLi as the initiator.
Homogeneous In2O3 nanoparticles (NPs) were self-assembled into thin film sensor arrays on a single chip, with further surface modification by noble metal catalysts. The NP show clear current responses when exposed to different target gases, and both sensitivity selectivity greatly improved. Particularly, the sensors modified Au, Pd, Pt nanocatalysts demonstrated higher H2S, H2 CO, respectively, making gas discrimination direct simple, like "one key one lock". particle size dependence of...
Tissues with tubular structures play important roles in the human bodies, such as mass transport, nutrition exchange, and waste filtration. However, it remains a challenge to generate micro-scaffolds well-defined luminal structure biomedical field. In this study, we proposed novel method fabricate multi-component microfibers multi-hollow via microfluidic spinning, which can subsequently be integrated 3D printing for tissue-like block assembling. To achieve goal, fabricated microchip using...
ITO based nanorod arrays fabricated by oblique angle deposition (OAD) were designed as resistive gas sensors for NO2 detection, and the detection limit was found to reach low 50 ppb with a response time of 20 min. A comparative study shows that array has higher sensing than film, double-layered design could further improve response. By increasing vapor incident during fabrication, also increases, due increased porosity penetration. It is expected OAD technique become versatile scalable...
Two forms of tin oxide (SnO <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> ) nanoparticles (NPs) with different morphologies (small dispersed NPs and big clusters aggregated from small NPs) were synthesized via chemical solution methods assembled into films on Si/SiO substrate for a comparative sensing study, which tested the responses to H S reducing gas NO oxidizing gas, respectively. Similar detection limits part per million levels...
At present, the research objects of rigid-body guidance synthesis are mostly limited to pure linkages, and there is little on combined mechanisms gears or cams linkages. In order expand improve kinematic mapping theory, this paper proposes a method noncircular gear-five-bar mechanisms. A mechanism can be regarded as combination 2R (two revolute joints) open chain, 3R (three chain pair gears. Firstly, circle point curves center chains obtained by using mapping, they formed into double crank...
A condensate gas reservoir is an important special oil and between natural reservoir. Gas injection production the most commonly used development method for this type of reservoir, but serious retrograde condensation usually occurs in later stages development. To improve recovery efficiency middle late a parameter optimization test study was carried out, taking Yaha China as example. On premise that physical experimental model key parameters met actual conditions formation, method, medium,...
To settle the pedestrian evacuation problems of large public building, by taking advantages Ant Colony Algorithm in solving shortest path problem while behavioral characteristics persons during fire into consideration, this paper puts forward a dynamic optimizing model person based on Algorithm, and combines with analogue simulation fire-free or occurrence examples, finally goes to conclusion that adjustment optimized can improve efficiently reduce casualties effectively.
In Low Earth Orbit (LEO) satellite constellations with inter-satellite links (ISL), the existing load balancing routing algorithms have two disadvantages: (1) Lack of consideration link information and respond poorly to congestion situations in strategies. (2) implementation algorithm, global schemes poor timeliness large communication storage overhead, while decisions local occasionally cannot guarantee optimality. This study proposes a priority forwarding strategy based on notification...
Abstract The five axis CNC laser machining machine is widely used in the processing industry with high efficiency and precision other advantages. Based on basic principle of kinematics theory multi-body system, this paper describes homogeneous coordinate transformation law five-axis tool based GSN control card, analyzes solution motion trajectory converts it into incremental data position each system tool, which solves correctness, universality automation numerical system. It provides a...
Solid-state devices made from correlated oxides such as perovskite nickelates are promising for neuromorphic computing by mimicking biological synaptic function. However, comprehending dopant action at the nanoscale poses a formidable challenge to understanding elementary mechanisms involved. Here, we perform operando infrared nanoimaging of hydrogen-doped perovskite, neodymium nickel oxide (H-NdNiO3) and reveal how an applied field perturbs distribution nanoscale. This perturbation leads...