A5101966982- Multilevel Inverters and Converters
- Sensorless Control of Electric Motors
- Advanced DC-DC Converters
- Atmospheric chemistry and aerosols
- Nanoplatforms for cancer theranostics
- Advanced Battery Technologies Research
- Air Quality and Health Impacts
- Electric Motor Design and Analysis
- Solar-Powered Water Purification Methods
- Advanced Photocatalysis Techniques
- Advanced Nanomaterials in Catalysis
- Magnetic Bearings and Levitation Dynamics
- Urban Heat Island Mitigation
- Microgrid Control and Optimization
- Advancements in Battery Materials
- Extracellular vesicles in disease
- Gold and Silver Nanoparticles Synthesis and Applications
- Fuel Cells and Related Materials
- Electric and Hybrid Vehicle Technologies
- Air Quality Monitoring and Forecasting
- Climate Change and Health Impacts
- Silicon Carbide Semiconductor Technologies
- Advanced Frequency and Time Standards
- GNSS positioning and interference
- Microbial Fuel Cells and Bioremediation
Northwestern Polytechnical University
2018-2024
UK Centre for Ecology & Hydrology
2024
Institute of Atmospheric Physics
2015-2024
Chinese Academy of Sciences
2015-2024
Harbin Institute of Technology
2017-2022
Aarhus University
2022
Beihang University
2021
Nanjing University of Information Science and Technology
2021
Lancaster University
2020
University of Chinese Academy of Sciences
2017-2020
This paper proposes an alternative strategy of finite-control-set model-predictive torque control (MPTC) to reduce the computational burden and ripple decouple switching frequency from controller sampling time. An improved discrete space-vector modulation (DSVM) technique is utilized synthesize a large number virtual voltage vectors. The deadbeat (DB) used optimize vector selection process, avoiding enumerating all feasible With this proposed method, only three vectors are tested in each...
Abstract Bioelectricity generation, by Shewanella oneidensis ( S. ) MR-1, has become particularly alluring, thanks to its extraordinary prospects for energy production, pollution treatment, and biosynthesis. Attempts improve technological output modification of MR-1 remains complicated, expensive inefficient. Herein, we report on the augmentation with carbon dots (CDs). The CDs-fed cells show accelerated extracellular electron transfer metabolic rate, increased intracellular charge, higher...
Abstract Phase transition from WO 3 to sub‐stoichiometric 2.9 by a facile method has varied the typical semiconductor be quasi‐metallic with narrowed band gap and shifted Femi energy conduction band, while maintaining high crystallinity. The resultant nanorods possess total absorption capacity (ca. 90.6 %) over whole solar spectrum as well significant photothermal conversion capability, affording efficiency around 86.9 % water evaporation of about 81 upon light irradiation. Meanwhile,...
Increasing ozone concentrations are becoming a severe problem for air pollution in China and have an adverse impact on human health. Here we evaluate premature deaths attributable to long-term exposure ambient between 2013 2017 with quality model at 5 km resolution the latest estimates of relative risk We use modified inverse distance weighting method bias-correct key model-simulated metrics. find that 5-year average basis there 186,000 (95% Confidence Interval: 129,000-237,000) respiratory...
Numerical wave models have been developed for the forecast in last two decades; however, it faces challenges terms of requirement large computing resources and improvement accuracy. Based on a convolutional long short-term memory (ConvLSTM) algorithm, this paper establishes two-dimensional (2D) significant height (SWH) prediction model South East China Seas trained by WaveWatch III (WW3) reanalysis data. We conduct 24-h predictions under normal extreme conditions, respectively. Under...
High-performance theranostic nanoagents, which integrate multimodal imaging and photothermal therapy for clinical anticancer treatment, are highly desired. Herein, we report the synthesis bioapplication of a multifunctional nanoagent based on polyethylene glycol (PEG)-modified polypyrrole (PPy)-coated bismuth (Bi) nanohybrids (referred to as Bi@PPy-PEG NHs) X-ray computed tomography/photoacoustic (CT/PA) dual-modal (PTT). The obtained NHs have distinct core–shell structure with metallic Bi...
Solar power-based synchronous photothermal evaporation and photodegradation show significant promise on water treatment.
Photothermal sterilization based on PBNs has been demonstrated not only upon NIR irradiation but also most importantly under simulated solar light.
Abstract. The Beijing area has suffered from severe air pollution in recent years, including ozone the summer. In addition to anthropogenic emissions inventory, understanding local requires a reliable biogenic volatile organic compound (BVOC) emission inventory. Forest coverage rose 20.6 35.8 % 1998 2013 according National Resource Survey (NFRS), and accurate representations of land cover for years is crucial estimating BVOC their impacts on quality. this study, we established...
During transient process, it may take plenty of steps for PMSM to reach the reference torque and flux linkage. Multistep model predictive control (MPTC) can select best sequence voltage vectors from initial state achieve fastest response. However, computation burden is a significant challenge real-time implementation. This paper proposes novel fast-response MPTC strategy drives. The converted linkage in d-axis q-axis eliminate weighting factor cost function. Pontryagin's maximum principle...
To achieve precise voltage value for modern model-based motor control strategies, an accurate distortion compensation method source inverters is proposed in this paper. The principles of a mosfet-based inverter and IGBT-based are analyzed compared. A graphical solution compensating error proposed, all the factors considered. current observer designed to overcome time delay, each switching period compensation. high precision, intuitive, easy implement. effectiveness verified by experiments.
Abstract Phase transition from WO 3 to sub‐stoichiometric 2.9 by a facile method has varied the typical semiconductor be quasi‐metallic with narrowed band gap and shifted Femi energy conduction band, while maintaining high crystallinity. The resultant nanorods possess total absorption capacity (ca. 90.6 %) over whole solar spectrum as well significant photothermal conversion capability, affording efficiency around 86.9 % water evaporation of about 81 upon light irradiation. Meanwhile,...
Abstract Thermo‐chemotherapy combining photothermal therapy (PTT) with chemotherapy has become a potent approach for antitumor treatment. In this study, multifunctional drug‐delivery nanoplatform based on polyethylene glycol (PEG)‐modified mesoporous silica‐coated bismuth selenide nanoparticles (referred to as Bi 2 Se 3 @mSiO ‐PEG NPs) is developed synergistic PTT and infrared thermal (IRT) imaging of cancer cells. The product shows no/low cytotoxicity, strong near‐infrared (NIR) optical...
The output voltage distortion of the inverter worsens performance permanent-magnet synchronous motor, therefore, it should be compensated accurately. can measured by oversampling system, but contains drift and noise. To solve this problem, an adaptive sigmoidal function (S-function) model is first proposed in article to estimate distortion. A nonlinear Levenberg–Marquardt regression method with measurement employed identify initial parameters S-function. During operation, a recursive least...
Abstract Below‐cloud scavenging (BS) is often underestimated in chemical transport models (CTMs) due to inaccurate parameterizations of BS coefficient for fine particle (Λ) caused by a shortage high‐time resolution field observations. Rainfall ions and related air pollutants were measured hourly Central China (CC) during 2019. contributed 37%–68% wet deposition , (SNA). By bulk method coupled with brute‐force search, the Λ (10 −2 –10 hr −1 ) was parameterized SNA PM 2.5 which 1–3 orders...
For salient-pole permanent magnet synchronous motor (PMSM), the amplitude of extended back electromotive force (EEMF) is determined by rotor speed, stator current and its derivative value. Theoretically, even at extremely low EEMF can be detected if in q-axis changing. However, it difficult to detect precisely due speed. In this paper, novel full-order multi-input multi-output discrete-time sliding mode observer (SMO) built position. With proposed position estimation technique, start up from...