A5101773152- Antenna Design and Analysis
- Microwave Engineering and Waveguides
- Advanced Antenna and Metasurface Technologies
- Metamaterials and Metasurfaces Applications
- Perovskite Materials and Applications
- Conducting polymers and applications
- Antenna Design and Optimization
- Chalcogenide Semiconductor Thin Films
- High-Velocity Impact and Material Behavior
- Electromagnetic Launch and Propulsion Technology
- Quantum Dots Synthesis And Properties
- Rocket and propulsion systems research
- Energetic Materials and Combustion
- Nanomaterials for catalytic reactions
- Image Processing Techniques and Applications
- Simulation and Modeling Applications
- Recycling and utilization of industrial and municipal waste in materials production
- High Entropy Alloys Studies
- Thermal and Kinetic Analysis
- Aerodynamics and Fluid Dynamics Research
- Environmental remediation with nanomaterials
- Cavitation Phenomena in Pumps
- Embedded Systems and FPGA Design
- Satellite Communication Systems
- Structural Response to Dynamic Loads
Fudan University
2022-2025
System Equipment (China)
2024
PLA Army Engineering University
2020-2024
Zaozhuang University
2019-2024
PLA Information Engineering University
2019-2023
Shenyang University of Technology
2023
Shijiazhuang University
2016-2022
Shanghai University of Engineering Science
2020-2022
Nanjing University of Science and Technology
2021-2022
Kunming University of Science and Technology
2022
Subpixel translation estimation using phase correlation is a fundamental task for numerous applications in the remote sensing community. The major drawback of existing subpixel methods lies their sensitivity to corruption, including aliasing and noise, as well poor performance case practical data. This paper presents novel method singular value decomposition (SVD) unified random sample consensus (RANSAC) algorithm. In proposed method, SVD theoretically converts problem one dimensions...
Abstract The low toxicity and a near‐ideal bandgap endow tin (Sn)‐based perovskite solar cells (TPSCs) promising future in photovoltaic technologies. However, general the Sn‐based perovskites suffer from poor resistance to oxidation fast crystallization dynamics, resulting fill factors (FFs) power conversion efficiencies (PCEs). Herein, strategy improve performance of TPSCs by incorporating 2‐(2‐aminoethyl)–2‐thiopseudourea dihydrobromide (AET) into is proposed. AET interacts strongly with...
Abstract Organic–inorganic halide perovskites have been intensively investigated as potential photovoltaic materials due to their exceptional optoelectronic properties and successful applications in perovskite solar cells (PSCs). However, a large number of defect states still exist the PSCs so far are detrimental power conversion efficiencies (PCEs) stability. Here, an effective strategy incorporating single-crystalline graphene quantum dots (GQDs) into films is proposed passivate states....
Attitude jitter is a common phenomenon in the application of high resolution satellites, which may result large errors geo-positioning and mapping accuracy. Therefore, it critical to detect compensate attitude explore full geometric potential satellites. In this paper, framework detection compensation for satellites proposed some preliminary investigation performed. Three methods are presented as follows. (1) The first one based on multispectral images using parallax between two different...
Tin dioxide (SnO2) has emerged as an effective electron transport layer (ETL) in perovskite solar cells because of its good chemical stability, low annealing temperature, and relatively high mobility. However, the defect sites derived from low-temperature solution process inevitably affect device performance. Here, we report cesium carbonate (Cs2CO3) a modifier to improve electronic property SnO2 ETL passivate defects at perovskite/SnO2 interface. It is found that Cs2CO3 modification could...
2D SnS 2 nanosheets as an interfacial modifier passivate the defects at SnO /perovskite interfaces and reduce nonradiative recombination, enabling efficient stable perovskite solar cells.
<title>Abstract</title> Fullerene-based materials have traditionally served as the primary electron transport layers (ETLs) in environmentally friendly tin-based perovskite solar cells (TPSCs) due to their suitable band structures. However, they suffer from limitations such high cost, complex synthetic process, low mobilities, limited interactions with Sn-based perovskites, and challenges tuning chemical electrical structures, which hindered further improvements power conversion efficiency...
In this letter, a compact balun with bandwidth enhancement is firstly proposed based on fully artificial fractal-shaped composite right/left handed transmission line (CRLH TL). It consists of three -90° CRLH branches and one +90° branch. The left contribution realized by chip components while the right part exploited fractal microstriplines in terms miniaturization. For verification, operating at 1.5 GHz designed, fabricated, measured. Numerical measured results agree well, which has...
As industrial computerized tomography (ICT) is widely used in the non-destructive testing of a solid rocket motor (SRM), problem how to automatically discriminate defect types and measure sizes with high accuracy ICT images SRM grains needs be urgently solved. To address problems low manual recognition efficiency data utilization image analysis grains, we proposed an automated (ADA) system for based on YOLO-V4 model. Using region proposal model, growing algorithm automatic selection seed...
In this paper, on the basis of proposing a novel complementary split-ring resonator (CSRR) using Koch fractal curve, bandpass filter based such new structure is designed To validate designing method. Transmission characteristics and reflection presented are given by both software simulation experiment measurement. Consistent results have confirmed design concept excellent performance indicated that proposed has low insertion loss high selectivity small size.
Quasi-static compression/tension, dynamic compression/shear mechanical property tests, fracture morphology characterization, response experiment, numerical simulation, and calculation of the ultimate penetration velocity high-strength steel under impact large mass low-velocity fragments small high-velocity were carried out to study ballistic performance used for armor vehicle protection clarify its Ballistic impact. The mode compression shear was failure. A number fine parabolic dimples...
In the Dempster-Shafer theory, how to quantitatively evaluate quality of information is an essential issue and also open issue. Many measures uncertainty have been proposed in previous work, whereas some among them had proved a few shortcomings. The validity rationality recent years explored analyzed preliminarily, then empirical measure with exponential function form which directly based on framework evidence theory overcome Several numerical examples presented illustrate measure.
The present paper develops a new Bernoulli–Euler theory of microbeams for the consideration small-scale effects and nonlinear terms, which are induced by axial elongation beam Kelvin–Voigt damping. non-resonance primary resonance researched through application Galerkin multiple scale methods to model. results suggest following: (1) Nonlinear damping slightly affects vibration amplitudes under condition; (2) can significantly change bifurcation points that induce jump in condition. current...
Abstract With excellent biocompatibility, a narrow bandgap, and long thermal carrier lifetime, tin‐based perovskite solar cells (TPSCs) are promising within the technology. The fullerene derivative indene‐C 60 bisadduct (ICBA) is recognized as most efficient electron‐transport material for TPSCs, thanks to its suitable band structure. Nevertheless, limited electron transport capability susceptibility moisture penetration of ICBA have hindered progress TPSCs. Herein, study proposes new...
Tin-based perovskite solar cells have garnered attention for their biocompatibility, narrow bandgap, and long thermal carrier lifetime. However, nip-type tin-based underperformed largely due to the indiscriminate use of metal oxide electron transport layers originally designed lead-based cells. Here, we reveal that this underperformance is caused by oxygen vacancies deeper energy levels in oxide. To address these issues, propose a chalcogenide layer, specifically Sn(S
A theoretical model for array patterns of variable inclination continuous transverse stub (VICTS) antenna is proposed. The utilized to reveal the nonlinear relationship in beam scanning between angular position and rotation angle radiation layer. dynamic coordination system used simplify reduce errors. Based on system, pattern VICTS with arbitrary amplitude distribution aperture shape can be calculated by model. Both full-wave simulations computation are carried out. calculation errors...
Due to the huge potential of application in communications, electronic jamming, and radar fields, circularly polarized (CP) array antennas with wide axial ratio (AR) scanning performance at frequency bandwidth have received great attention. A wideband CP planar antenna built by new, tightly coupled dipole (CP-TCDA) elements, which achieved promising results terms both AR angle range all planes, is presented this paper. Based on shorted transmission line model, a CP-TCDA element arranged...