A5084812300- Advanced machining processes and optimization
- Advanced Surface Polishing Techniques
- Advanced Measurement and Detection Methods
- Optical Systems and Laser Technology
- Organic Electronics and Photovoltaics
- Titanium Alloys Microstructure and Properties
- Conducting polymers and applications
- Organic Light-Emitting Diodes Research
- Advanced Machining and Optimization Techniques
- Metal Forming Simulation Techniques
- Metallurgy and Material Forming
- Manufacturing Process and Optimization
- Advanced materials and composites
- Infrared Target Detection Methodologies
- High-Velocity Impact and Material Behavior
- Perovskite Materials and Applications
- Laser Material Processing Techniques
- Molecular Junctions and Nanostructures
- Silicone and Siloxane Chemistry
- Tunneling and Rock Mechanics
- Advanced SAR Imaging Techniques
- Connexins and lens biology
- Fuel Cells and Related Materials
- Advanced Aircraft Design and Technologies
- Aerospace Engineering and Control Systems
Ningbo University of Technology
2010-2020
Hong Kong Polytechnic University
2015-2019
Northwestern Polytechnical University
2017
China Ocean Shipping (China)
2014-2016
South China University of Technology
2003-2015
Zhejiang University
2009-2014
Chinese People's Liberation Army
2013
PLA Army Engineering University
2010-2011
China Academy of Information and Communications Technology
2010
Moorfields Eye Hospital
2006
A bilayer cathode consisting of aminoalkyl-substituted polyfluorene and Al layers (see Figure) effectively injects electrons into an electroluminescent polymer emitting layer. The alcohol- water-soluble polyfluorene, its quaternized salt, can be used to fabricate light-emitting diodes with device performance comparable to, or exceeding, devices using Ba/Al cathodes.
Abstract Polyhedral oligomeric silsesquioxanes (POSS) anchored to poly(2‐methoxy‐5‐(2‐ethylhexyloxy)‐1.4‐phenylenevinylene) (MEH‐PPV) (MEH‐PPV–POSS), and poly(9,9‐dihexylfluorenyl‐2,7‐diyl) (PFO) (PFO–POSS) were synthesized. Compared with the corresponding parent polymers, MEH‐PPV PFO, MEH‐PPV–POSS PFO–POSS have better thermal stability. identical absorption photoluminescent (PL) spectra, both in solution as thin films. They also electroluminescent (EL) spectra. Devices made from exhibit...
Abstract Although the performance of polymer solar cells has been improved significantly recently through careful optimization with different interlayers for same materials, more improvement is needed in this respect small‐molecule‐based cells, particularly electron‐transport layers (ETLs). In work, three solution‐processed ETLs, PFN, ZnO nanoparticles, and LiF, were investigated compared devices, power conversion efficiencies (PCEs) 8.32, 7.30, 7.38 % achieved, respectively. The mechanism...
Abstract An alternating narrow bandgap conjugated copolymer (PICZ‐DTBT, E g = 1.83 eV) derived from 5,11‐di(9‐heptadecanyl)indolo[3,2‐ b ]carbazole and 4,7‐di(thieno[3,2‐ ]thien‐2‐yl)‐2,1,3‐benzothiadiazole (DTBT), was prepared by the palladium‐catalyzed Suzuki coupling reaction. The resultant polymer absorbs light 350–690 nm, exhibits two absorbance peaks at around 420 570 nm has good solution processibility thermal stability. highest occupied molecular orbital (HOMO) energy level lowest...
TC21 is a new type of titanium alloy that difficult to cut. In this research, series orthogonal turning tests are performed investigate the cutting mechanisms TC21. The effects tool geometrical parameters and conditions on force analyzed in detail. addition, process simulated using presented three-dimensional finite element model (FEM). results proved have great effect force. Further, simulation agreed well with those experiments, FEM can be used reveal high-speed machining behavior alloy.
Three new star‐shaped macromolecules with hexakis(fluoren‐2‐yl)benzene as the core and pyridine periphery ( 2Py‐HFB , 3Py‐HFB 4Py‐HFB ) are synthesized characterized. The synthetic conditions of octacarbonyldicobat‐catalyzed cycloaddition reaction for different alkyne precursors investigated. coordination interaction between ring precursor cobalt catalyst may result in very low yield cyclotrimerization product. However, increase loading, yields intermediates cyclopentadienone enhanced. Then,...
The quasi-static compressive and dynamic (SHPB) experiments were carried out to investigate the static property of titanium alloy Ti6Al4V though analysis comparison experiment results, Johnson-Cook constitutive model was established. cutting process simulated using orthogonal finite element model. Though simulation, considering adiabatic effect more correct. establishing provided conditions for further simulation parameters optimization Ti6Al4V.
A testing method of optical axes parallelism shipboard photoelectrical theodolite (short for theodolite) was proposed which based on image processing by comparing disadvantages the conventional method. Owing to application this method, process optimized as well adaptability enhanced. The trial result indicated that could improve efficiency and accuracy, it also reduce human vision is main factor affected detection results had some actual values.
Aim at the difficulty of cutting for titanium alloy, 3D finite element model has been established. The high speed simulated using established model. chip formation and force have analyzed. In same condition, experiment carried ou. Through comparison, result simulation agrees with well. It proves that is correct, can be used to investigate optimization parameters.
Because of the excellent properties, application titanium alloys in ultraprecision field is attracting more and attention scholars. However, poor machinability limited their application. To reveal mechanism alloy Ti6Al4V polishing, polishing tests have been carried out after turning tests. The effect particle size on surface roughness has investigated through In addition, a 2D finite element model was presented to investigate process. At same time, analyzed by simulation. simulation results...
Tool geometrical parameters had great influence on the cutting. The orthogonal finite element model was established. used to simulate of (rake angle, clearance radius tool tip) high speed cutting aluminum alloy 7050T7451, and investigate these chip formation. In same condition, force experiment carried out. A good agreement between simulation achieved. results were proved be correct. study provided base for selection optimization in 7050T7451.
Milling-force model has very important influence for studying of metal cutting theory. The high speed experiment carbon fiber composite material been carried out by the method orthogonal experiment, and four factors (milling speed, milling width, feeding depth) considered sufficiently. establishing process force was deduced detailed. establishment provided base investigating further.