Search Results - "Wu, Qiannan"
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1
Geometry symmetry-free and higher-order optical bound states in the continuum
Published in Nature communications (19-07-2021)“…Geometrical symmetry plays a significant role in implementing robust, symmetry-protected, bound states in the continuum (BICs). However, this benefit is only…”
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2
Status and perspectives of key materials for PEM electrolyzer
Published in Nano Research Energy (01-12-2022)“…Proton exchange membrane water electrolyzer (PEMWE) represents a promising technology for the sustainable production of hydrogen, which is capable of…”
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3
Deep neural network-enabled dual-functional wideband absorbers
Published in Scientific reports (24-10-2024)“…The increasing interest in switchable and tunable wideband perfect absorbers for applications such as modulation, energy harvesting, and spectroscopy has…”
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4
Deep neural network-enabled multifunctional switchable terahertz metamaterial devices
Published in Scientific reports (27-08-2024)“…Under the support of deep neural networks (DNN), a multifunctional switchable terahertz metamaterial (THz MMs) device is designed and optimized. This device…”
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5
Enhanced interface charge transfer via n-n WO3/Ti–Fe2O3 heterojunction formation for water splitting
Published in Journal of alloys and compounds (30-09-2019)“…Inevitable drawbacks on α-Fe2O3 photoanodes, such as poor conductivity, short hole diffusion length, high electron-hole recombination rate, limit their…”
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6
Multimodal Perturbation and Cluster Pruning Based Selective Ensemble Classifier and Its Iron Industrial Application
Published in International journal of control, automation, and systems (01-11-2023)“…The selective ensemble aims to search the optimal subset balanced accuracy and diversity from the original base classifier set to construct an ensemble…”
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7
A Method for Filtering Low Frequency Disturbance in PMU Data Before Coordinated Usage in SCADA
Published in IEEE transactions on power systems (01-07-2017)“…The PMU data is increasingly used in the grid monitoring system SCADA. As the DFT algorithm used in PMUs fails to distinguish the fundamental frequency signal…”
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8
Ferrihydrite‐Modified Ti–Fe2O3 as an Effective Photoanode: The Role of Interface Interactions in Enhancing the Photocatalytic Activity of Water Oxidation
Published in ChemSusChem (11-10-2018)“…Semiconductor electrodes integrated with cocatalysts are key components of photoelectrochemistry (PEC)‐based solar‐energy conversion. However, efforts to…”
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Tunable Broadband-Narrowband and Dual-Broadband Terahertz Absorber Based on a Hybrid Metamaterial Vanadium Dioxide and Graphene
Published in Micromachines (Basel) (13-01-2023)“…We propose a functionally tunable terahertz (THz) metamaterial absorber, which has the switching performance between broadband-narrowband and dual-broadband…”
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10
An Optimally Selective Ensemble Classifier Based on Multimodal Perturbation and Its Application
Published in Arabian journal for science and engineering (2011) (01-05-2023)“…The selective ensemble aims to search the optimal subset balanced accuracy and diversity from the original base classifier set to construct an ensemble…”
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11
Synergistically Enabling Fast‐Cycling and High‐Yield Atmospheric Water Harvesting with Plasma‐Treated Magnetic Flower‐Like Porous Carbons
Published in Advanced science (01-01-2023)“…Sorption‐based atmospheric water harvesting (AWH) offers a promising solution to the water scarcity in arid regions. However, majority of the existing AWH…”
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12
Ultra-Wideband and Narrowband Switchable, Bi-Functional Metamaterial Absorber Based on Vanadium Dioxide
Published in Micromachines (Basel) (06-07-2023)“…A switchable ultra-wideband THz absorber based on vanadium dioxide was proposed, which consists of a lowermost gold layer, a PMI dielectric layer, and an…”
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13
Design and fabrication of a 4-bit RF MEMS attenuator with a high attenuation accuracy
Published in Analog integrated circuits and signal processing (01-03-2020)“…This paper presents a 4-bit micro-electromechanical system (MEMS) digital attenuator with improved attenuation accuracy by surface micromachining. The…”
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14
Repeated pulmonary nodules as the primary symptom of familial hemophagocytic lymphohistiocytosis in adults: a case report and review
Published in Journal of international medical research (01-09-2023)“…Pulmonary nodules are usually considered to be associated with malignant tumors and benign lesions, such as granuloma, pulmonary lymph nodes, fibrosis, and…”
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15
Design of a Ka-Band Five-Bit MEMS Delay with a Coplanar Waveguide Loaded U-Shaped Slit
Published in Micromachines (Basel) (27-07-2023)“…This paper designs a five-bit microelectromechanical system (MEMS) time delay consisting of a single-pole six-throw (SP6T) RF switch and a coplanar waveguide…”
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16
Boosting Photocatalytic Oxygen Evolution: Purposely Constructing Direct Z-Scheme Photoanode by Modulating the Interface Electric Field
Published in Chemical research in Chinese universities (01-12-2020)“…Ti-Fe 2 O 3 photoanode has received widespread attention in photoelectrochemical(PEC) water spilling because of its optimized oxidative and reductive…”
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17
The Seven-State RF MEMS Miniaturized Broadband Reconfigurable Step Attenuator
Published in Micromachines (Basel) (24-09-2024)“…This paper presents a three-channel reconfigurable step attenuator based on radio frequency (RF) microelectromechanical system (MEMS) switches, in response to…”
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18
Design and Optimization of an S-Band MEMS Bandpass Filter Based on Aggressive Space Mapping
Published in Micromachines (Basel) (27-12-2022)“…Aggressive space mapping (ASM) is a common filter simulation and debugging method. It plays an important role in the field of microwave device design. This…”
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19
Design of Broadband High-Frequency Multi-Throw RF-MEMS Switches
Published in Micromachines (Basel) (23-06-2024)“…This paper introduces a broadband triple-pole triple-throw (3P3T) RF MEMS switch with a frequency range from DC to 380 GHz. The switch achieves precise signal…”
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20
A 60 GHz Slotted Array Horn Antenna for Radar Sensing Applications in Future Global Industrial Scenarios
Published in Micromachines (Basel) (30-05-2024)“…This paper presents the design of a 60 GHz millimeter-wave (MMW) slot array horn antenna based on the substrate-integrated waveguide (SIW) structure. The…”
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