A5003294129- Microwave Engineering and Waveguides
- Antenna Design and Analysis
- Advanced Antenna and Metasurface Technologies
- Data Management and Algorithms
- Advanced Database Systems and Queries
- Nicotinic Acetylcholine Receptors Study
- Endoplasmic Reticulum Stress and Disease
- Radio Frequency Integrated Circuit Design
- Receptor Mechanisms and Signaling
- Heat shock proteins research
- Time Series Analysis and Forecasting
- Advanced ceramic materials synthesis
- Aerogels and thermal insulation
- Millimeter-Wave Propagation and Modeling
- Photonic and Optical Devices
- Traffic Prediction and Management Techniques
- Trace Elements in Health
- Dielectric materials and actuators
- Energy Harvesting in Wireless Networks
- Enzyme Structure and Function
- Simulation and Modeling Applications
- Laser and Thermal Forming Techniques
- Acoustic Wave Resonator Technologies
- AI and HR Technologies
- Advanced MEMS and NEMS Technologies
Sun Yat-sen University
2013-2025
National Defence Academy
2013
Institute of Biophysics
2001-2005
Chinese Academy of Sciences
2005
Northwest Institute For Non-Ferrous Metal Research
2002
To meet the demand for simultaneously supporting microwave and millimeter-wave technologies in emerging industrial wireless systems, research on dual-band components with a large frequency ratio has been conducted recently. However, it is challenging to implement independent tunability bandpass filters both compactness high performance. This article presents filter ratio, independently tunable frequencies, an ultrawide stopband. achieved by artfully incorporating harmonic-controllable...
Escherichia coli DnaJ, possessing both chaperone and thiol−disulfide oxidoreductase activities, is a homodimeric Hsp40 protein. Each subunit contains four copies of sequence -CXXCXGXG-, which coordinate with two Zn(II) ions to form an unusual topology C4-type zinc fingers, C144DVC147Zn(II)C197NKC200 (Zn1) C161PTC164Zn(II)C183PHC186 (Zn2). Studies on five DnaJ mutants Cys in Zn2 replaced by His or Ser (C183H, C186H, C161H/C183H, C164H/183H, C161S/C164S) reveal that substitutions one residues...
Chaperone DnaJ is a homodimer with each subunit containing 10 cysteine residues and two Zn(II) ions, which have been identified to form zinc fingers, C(144)DVC(147)Zn(II)C(197)NKC(200) (Zn1) C(161)PTC(164)Zn(II)C(183)PHC(186) (Zn2), C(265) C(323) in reduced form. Guanidine hydrochloride at 6.4 M destroys only Zn1, does not reform after refolding. p-Hydroxymercuriphenylsulfonate acid, but ethylenediaminetetraacetic acid (EDTA) even high concentrations, can remove ions from DnaJ, Zn2 be...
In this paper, a novel patch resonator is proposed to realize wideband and dual-band bandpass filter (BPF) with small frequency ratio. The introduction of metallic vias slots on the enables flexible control resonant frequencies TM01, two degenerated modes TM11, TM21. Two stubs loaded coupled I/O feeding line can introduce additional modes, facilitate input/output coupling strength. Owing different relationships between stub transmission zeros (TZs) located at center passband be eliminated or...
This brief proposes a low-profile tri-mode dielectric resonator (DR) for implementing rat-race coupler. The proposed DR has hexagonal shape with hybrid boundary, where three of its lateral surfaces are plated silver. boundary enables operation modes, whose resonant frequencies can be gathered by subtly adjusting the dimension. By exploiting inherent phase relationship among filtering in-phase power divider or balun implemented selectively exciting specific modes. Furthermore, combining...
In this letter, an efficient wideband decoupling technique is introduced for two inverted-F antennas (IFAs). By introducing a capacitively loaded ground cut, extra coupling paths can be exploited and co-tuned to mitigate the mutual between IFAs at frequencies. Therefore, transmission zeros obtained so that deep achieved. An equivalent circuit presented proposed reveal mechanism. Three examples are designed justify method, showing isolation impedance matching with 19.6% fractional bandwidth...
For the first time, a dual-band bandpass filter with independently tunable center frequencies was implemented to support microwave and millimeter-wave frequency bands simultaneously. To achieve desired high-frequency ratio, microstrip element is combined metallic cavity through aperture coupling mechanism. Meanwhile, proposed approach allows independent control of two operating frequencies. demonstration, designed, fabricated measured. A maximum ratio up 24 can be achieved together tunability.
In this paper, a substrate integrated dielectric resonator (SIDR) is utilized to realize novel millimeter-wave bandpass filter (BPF) for the first time. The fabricated using and packaged by multi-layer PCB technology. Two degenerated modes TEδ11 TE11δ1 are used excited slot coupling feeding mechanism. A prototype operating at 30 GHz designed simulated. simulated result demonstrates low insertion loss of 1.57 dB with fractional bandwidth 6% considering metal loss. Advantages profile, light...
The large amounts of spatiotemporal data generated by vehicle supervision systems cannot be efficiently managed ordinary databases, mainly because long query responses. To overcome the limitations this paper proposes a new approach, grid time (GT)–indexed cube, which is spatial grid–indexed, adaptive grid-based, trajectory-supported warehouse for data. GT cube partitions an embedded space–time into set size-fixed grids to form that continues grow throughout constant interval. Each assigned...
Battlefield situation assessment (BSA) has a positive significance on improving the efficiency of commanding decision-making, moreover, BSA cannot be made successfully without support some integrated and exact intelligence data. In this paper, basing demand identifying battlefield situation, corresponding knowledge context database is first discussed; basic, construction data warehouses framework explored. Then, from view holistic conception, study mining based warehouse made, detailed...
Battlefield situation assessment has a positive significance on improving the efficiency of commanding decision-making; moreover, battlefield cannot be made successfully without support some integrated and exact intelligence data. In this paper, basing demand identifying situation, corresponding knowledge context database was first discussed; basic, construction data warehouses framework explored. Then, study mining based warehouse from view holistic conception, detailed arithmetic presented...
The traditional dielectric resonator filter (DRF) is costly due to the high profile, machining and positioning of individual blocks supports, necessity metallic enclosure. To tackle this problem, article presents a novel patch (DPR) shielded by artificial magnetic conductor (AMC). proposed realized sandwiching thin DPR between bottom-grounded substrate an AMC plate, where mushroom-type electromagnetic bandgap (EBG) surface printed on substrate. It quasi-planar therefore suitable for...