A5101783855- Microwave Engineering and Waveguides
- Advanced Algorithms and Applications
- Advanced Antenna and Metasurface Technologies
- Advanced Sensor and Control Systems
- Robotic Path Planning Algorithms
- Non-Invasive Vital Sign Monitoring
- Radio Frequency Integrated Circuit Design
- Industrial Technology and Control Systems
- Antenna Design and Analysis
- Control and Dynamics of Mobile Robots
- Luminescence Properties of Advanced Materials
- Solid State Laser Technologies
- Simulation and Modeling Applications
- Electromagnetic Compatibility and Noise Suppression
- Photonic and Optical Devices
- Robotics and Sensor-Based Localization
- Soft Robotics and Applications
- Adaptive Control of Nonlinear Systems
- Power Systems and Renewable Energy
- Power Systems and Technologies
- Power Line Inspection Robots
- Belt Conveyor Systems Engineering
- ECG Monitoring and Analysis
- Advanced Decision-Making Techniques
- Advanced Measurement and Detection Methods
Xidian University
2008-2025
Renmin University of China
2020-2025
Changchun University of Science and Technology
2023-2024
Harbin Institute of Technology
2024
University of Nottingham Ningbo China
2023
Xiamen University of Technology
2021-2022
Chinese Academy of Sciences
2021
Jilin Jianzhu University
2021
Shanghai Institute of Ceramics
2021
Chinese University of Hong Kong
2019-2020
This paper proposes a novel and unified synthesis approach design procedure for microwave filters with extracted pole nonresonating node (NRN) technique. By introducing general circuit topology, the traditional NRN can be to prototype. With new process, exact mapping relationship between electromagnetic (EM) model of producing element achieved. All physical dimensions filter structure obtained by fully analytical approach. No full EM optimization or adjustment is needed in design. A three TE...
This article addresses the limitations in analytical synthesis of star junction multiplexers, focusing on passband configuration flexibility, maximum achievable multiplexer order, and canonical channel settings, with aim eliminating uncertainties existing approaches. The proposed method provides an optimal design approach by iteratively updating allocation reflection zeros (RZs) for various configurations. By introducing a set techniques to enhance numerical accuracy, new significantly...
Purpose By exploring the impact of digital knowledge resources (DKR) on carbon emission intensity pig industry (PCEI), this study aims to reveal role DKR in reducing PCEI. Design/methodology/approach Based provincial panel data China from 2011 2021, uses entropy and Intergovernmental Panel Climate Change coefficient methods calculate evaluation index system PCEI, respectively. Empirical analysis using a fixed-effects model examines influence PCEI its underlying mechanisms. Findings can...
<title>Abstract</title> Trade-related declines in mangrove forest cover have raised global concern for decades, given the numerous ecosystem services forests can provide. However, there has yet to be a comprehensive evaluation of relationship between loss and supply chains. This study presents an assessment footprint, defined as fine-scale mappings associated with international trade. Mangrove footprint is calculated by tracing 30m*30m on ground final consumption embodied trade through...
In this letter, a new method for rectangular waveguides bandpass filters with improved stopband performance is presented. By setting the position of coupling window, high-order mode can be attenuated, which makes it difficult to form parasitic passbands. It significantly improve rejection filter without introducing additional elements. Furthermore, whole structure fabricated using conventional computer numerical control (CNC) milling technology. A <italic...
A novel and compact ultra-wideband (UWB) bandpass filter with dual narrow notched bands based on two mushroom-type electromagnetic bandgap (EBG) structures is presented. The UWB BPF comprises coupled lines which are to the open-ended coplanar waveguide ground EBG near feedline. By simply adjusting dimensions of structures, centre frequencies can be allocated at 5.2 5.8 GHz, respectively. has been simulated, fabricated measured, good agreement between simulated measured results. centred GHz...
The generalized Chebyshev (pseudoelliptical) filter functions may not be optimal for certain applications due to physical constrains. With redundancy in polynomials, this article breaks down the "mental barrier" conventional synthesis and directly synthesizes "Chebyshev-like" achieve desired performance under limitations. By exploiting redundant restrictions on exact equal-ripple response, reflection zeros can moved complex plane, thus forming "Chebyshev-like functions." A class of inline...
In this paper, a hierarchical disaster image classification (HDIC) framework based on multi-source data fusion (MSDF) and multiple correspondence analysis (MCA) is proposed to aid emergency managers in response situations. The HDIC classifies images into different categories sub-categories using pre-defined semantic hierarchy. order effectively fuse sources (visual text) of information, weighting scheme presented assign weights each resource depending the structure. experimental demonstrates...
Ce:YAG transparent ceramics could be combined with blue LEDs/LDs, for applications of high power white LEDs/LDs.In this study, it is found that by adjusting the thickness and doping concentration Ce 3+ , emission spectra color coordinates assembled devices can adjusted from cold region to warm region.(Ce x Y 1-x ) 3 Al 5 O 12 (x=0.0005,0.0010, 0.0030, 0.0050, 0.0070 0.0100) was fabricated a solid state reaction method, pure (≥99.99%)commercial powders α-Al 2 CeO using as raw materials.The...
This article presents two types of planar/waveguide quasi-elliptic linear-phase filters using mixed cascade frequency-dependent triplets (FDTs) and extracted pole sections (EPSs). Specifically, we propose the circuit synthesis realization techniques for cascaded FDT EPS. The proposed avoids complex matrix rotation special scaling procedures compared with general is directly compatible lumped-element-based integrated design. Besides, it permits cascading FDTs singlet thus effectively forming...
This article proposed an analytical synthesis approach of generalized strongly coupled resonator triplet (GSCRT) filters, which eliminates the need for negative couplings regardless location transmission zeros (TZs). The principle removing in GSCRTs is explained from circuit level first time. In contrast with conventional filter function all in-band reflection (RZs), some RZs are preassigned out passband, named redundant resonant modes (or even modes). By regulating frequency modes, flexible...
Purpose This paper aims to analyze the role and advantages of knowledge resources in carbon emission reduction industrial chain, how it can be used promote so that industry better achieve saving energy emission. Design/methodology/approach argues traditional resource-plundering chain production method no longer meet needs sustainable development green low-carbon builds coupling coordination technology innovation drive mechanism, four dimensions organization, government support, internet...
In this paper, a fire detection system is designed based on multi-sensor data fusion technology. According to the signal's inherent character, around temperature, smoke density and CO are considered as chief detecting signals. By introducing "feedback" of cybernetics, new algorithm that extracts data-fitting characteristic presented. The may improve accuracy quickness early warning with tendency feedback signal. system, experiential signal fused by fuzzy inference get last probability....
This article studied the interference between two channels of a tunable diplexer and proposed feasible solution to alleviate effect. A novel approach synthesize channel filter with first element replicating other channel's effect is developed. It led set simple formulae for fixed frequency design. After that, framework incorporating redundant coupling path generate cancellation derived using matrix theory. The theories are demonstrated verified combline simulated measured results suggest...
This paper proposes a new algorithm(GA-PSO) by combining genetic algorithm and particle swarm optimization to improve the accuracy of camera self-calibration based on Kruppa equation. Firstly, simplified equations SVD fundamental matrix is converted into optimized cost function. Secondly, minimum value function calculated GA-PSO. Finally, intrinsic parameters obtained. The experimental results show that it accurate, proposed method obviously improved compared with single methods.
This article reviews the three key concepts of modern microwave-filter synthesis using coupled resonators: coupling matrix (CM), extracted pole (EP), and nonresonating node (NRN). CM is no doubt most popular powerful three. EP has been around longer as a circuit-synthesis tool, but it seems to have only limited applications. Both were developed before proliferation electromagnetic (EM) simulators fast computers. widely used because simple mapping relationship between physical dimension...
This article proposes a novel approach for extracted pole (EP) filter synthesis. The producing elements can be without introducing phase shifters. It is made possible by extracting lowpass in the prototype reducing order of functions. Using proposed as added redundancy, nonideal effect physical model absorbed adjacent resonators. Those approaches break through conventional framework EP synthesized results do not introduce extra spikes caused shifters filters. new theory enables application...
This contribution establishes the relationship between complementary condition and singly terminated (ST) networks. The general theory is first presented in form of bandpass/bandstop diplexers. Furthermore, well-known limitation a diplexer, i.e., using maximally flat prototypes, overcome. From principle, it rigorously proven that predefined features can be obtained by connecting two channel filters an ST prototype same filter function but exchanging transfer reflection part. paper leads to...
Lignocellulose is a polysaccharide and an abundant biomass resource that widely exists in grains, beans, rice, their by-products. Over 10 million tons of lignocellulose resources processing products are produced every year China. Three recombinant Y. lipolytica strains with cellulase (β-glucosidase, endoglucanase cellobiohydrolase) were constructed. The enzymatic activities these enzymes 14.181 U/mL, 16.307 17.391 respectively. whole cell cellulases used for stover bio-transformation....
The work proposes a general model for the transmission line miniaturization equivalent. Solutions with different configurations can be readily found. is applied to design of branch-line couplers, and criteria are presented analyzed. Previously reported approaches obtained by simply changing parameters using model. A 2GHz coupler designed fabricated demonstrate efficiency new method. 900MHz branchline from literature re-designed analyzed show differences between proposed method previous work.