Qingqing Zhang

ORCID: 0000-0003-0496-8310
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About
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Research Areas
  • Energy Harvesting in Wireless Networks
  • Wireless Power Transfer Systems
  • Innovative Energy Harvesting Technologies
  • Advanced Data and IoT Technologies
  • IoT Networks and Protocols
  • E-commerce and Technology Innovations
  • Power Systems and Renewable Energy
  • Telecommunications and Broadcasting Technologies
  • Power System Optimization and Stability
  • IoT-based Smart Home Systems
  • Optimal Power Flow Distribution
  • Advanced Wireless Communication Technologies
  • Transplantation: Methods and Outcomes
  • Control Systems and Identification
  • Vascular Procedures and Complications
  • Optical Wireless Communication Technologies
  • Embedded Systems and FPGA Design
  • Smart Grid and Power Systems
  • Global Political and Economic Relations
  • UAV Applications and Optimization
  • Advanced Wireless Network Optimization
  • Microgrid Control and Optimization
  • Neutrophil, Myeloperoxidase and Oxidative Mechanisms
  • Advanced Wireless Communication Techniques
  • Combustion and Detonation Processes

Zhejiang University of Technology
2024

Shanghai Pulmonary Hospital
2020-2024

Tongji University
2017-2024

China United Network Communications Group (China)
2019-2024

Ruijin Hospital
2024

Shanghai Jiao Tong University
2024

Union Hospital
2024

Huazhong University of Science and Technology
2022-2024

Changzhou University
2022-2024

Anhui Polytechnic University
2021-2023

Wireless power transfer (WPT) is a promising solution to provide convenient and perpetual energy supplies electronics. Traditional WPT technologies face the challenge of providing Watt-level over meter-level distance for Internet Things (IoT) mobile devices, such as sensors, controllers, smart-phones, laptops, etc.. Distributed laser charging (DLC), new alternative, has potential solve these problems enable with similar experience WiFi communications. In this paper, we present multi-module...

10.1109/jiot.2018.2851070 article EN IEEE Internet of Things Journal 2018-06-27

Power supply for Internet of Things (IoT) devices is one the bottlenecks in IoT development. To provide perpetual power devices, resonant beam charging (RBC) a promising safe, long-range, and high-power wireless transfer solution. How long distance RBC can reach how much transfer? In this paper, we analyze consistent steady operational conditions system, which determine maximum transmission distance. Then, study efficiency within distance, determines deliverable through energy channel. Based...

10.1109/jiot.2019.2894008 article EN IEEE Internet of Things Journal 2019-01-18

Exosomes are an emerging therapeutic tool for the treatment of tissue injuries. In present study, protective effect isolated exosomes from adipose‑derived stem cells (ADSCs‑exo) against hepatic ischemia‑reperfusion (I/R) injury was explored. Hepatic I/R achieved by inducing ischemia 60 min followed reperfusion 2 and 6 h. Pre‑treatment with ADSCs‑exo revealed a significant reduction in necrosis apoptosis liver induced injury. Hypoxic oxidative stress managed exosome‑mediated reduced reactive...

10.3892/ijmm.2021.5068 article EN cc-by-nc-nd International Journal of Molecular Medicine 2021-12-03

Primary graft dysfunction (PGD) is a severe form of acute lung injury resulting from ischemia/reperfusion (I/R) in transplantation (LTx), associated with elevated post-transplant morbidity and mortality rates. Neutrophils infiltrating during reperfusion are identified as pivotal contributors to I/R by releasing excessive neutrophil extracellular traps (NETs) via NETosis. While alveolar macrophages (AMs) involved regulating chemotaxis infiltration, their role NETosis remains inadequately...

10.1016/j.redox.2024.103231 article EN cc-by-nc Redox Biology 2024-06-07

Distributed laser charging (DLC) is a wireless power transfer technology for mobile electronics. Similar to traditional systems, the DLC system can only provide constant charge battery. However, Li-ion battery needs dynamic input current and voltage, thus power, in order optimize performance. Therefore, neither transmission efficiency nor performance be optimized by system. We at first propose an adaptive (ADLC) Then, we analyze ADLC's conversion depict adaptation mechanism. Finally,...

10.1109/vtcfall.2017.8288143 preprint EN 2021 IEEE 94th Vehicular Technology Conference (VTC2021-Fall) 2017-09-01

As a long-range high-power wireless power transfer (WPT) technology, resonant beam charging (RBC) can transmit Watt-level over long distance for the devices in internet of things (IoT). Due to its open-loop architecture, RBC faces challenge providing dynamic current and voltage optimize battery performance. In RBC, overcharge may cause energy waste, thermal effects, even safety issues. On other hand, undercharge lead time extension significant capacity reduction. this paper, we present an...

10.1109/jiot.2018.2867457 article EN IEEE Internet of Things Journal 2018-08-29

Resonant Beam Charging (RBC) is a promising Wireless Power Transfer (WPT) technology to provide long-range, high-power, mobile and safe wireless power for the Internet of Things (IoT) devices. The Point-to-Multipoint (PtMP) RBC system can charge multiple receivers simultaneously similar WiFi communications. To guarantee Quality Service (QoCS) each receiver maximize overall earning in PtMP service, we specify Pricing Strategy (CPS) develop High Priority Charge (HPC) scheduling algorithm...

10.1109/jiot.2018.2868226 article EN IEEE Internet of Things Journal 2018-08-31

Resonant Beam Charging (RBC) is the Wireless Power Transfer (WPT) technology, which can provide high-power, long-distance, mobile, and safe wireless charging for Internet of Things (IoT) devices. Supporting multiple IoT devices simultaneously a significant feature RBC system. To optimize multi-user performance, transmitting power should be scheduled all simultaneously. In order to keep working as long possible fairness, we propose First Access Charge (FAFC) scheduling algorithm. Then,...

10.1109/jiot.2018.2853546 article EN IEEE Internet of Things Journal 2018-07-05

Internet of Things (IoT) is powering up smart cities by connecting all kinds electronic devices. The power supply problem IoT devices constitutes a major challenge in current development, due to the poor battery endurance as well troublesome cable deployment. wireless transfer (WPT) technology has recently emerged promising solution. Yet, existing WPT advances cannot support free and mobile charging like Wi-Fi communications. To this end, concept energy (MET) proposed, which relies...

10.1109/jiot.2019.2926333 article EN publisher-specific-oa IEEE Internet of Things Journal 2019-07-07

To enable electric vehicles (EVs) to access the Internet of Intelligent Vehicles (IoIV), charging EVs wirelessly anytime and anywhere becomes an urgent need. The resonant beam (RBC) technology can provide high-power long-range wireless energy for EVs. However, RBC system is unefficient. improve power transmission efficiency, adaptive (ARBC) was introduced. In this paper, after analyzing modular model ARBC system, we obtain closed-form formula end-to-end efficiency. Then, prove that optimal...

10.1109/jiot.2018.2872431 article EN IEEE Internet of Things Journal 2018-09-27

Purpose: Ischemia reperfusion injury (IRI) unavoidably occurs during lung transplantation, further contributing to primary graft dysfunction (PGD). Neutrophils are the end effectors of IRI and activated neutrophils release neutrophil extracellular traps (NETs) amplify damage. Nevertheless, potential contributions NETs in remain incompletely understood. This study aimed explore NET-related gene biomarkers transplantation. Methods: Differential expression analysis was applied identify...

10.2147/jir.s444774 article EN cc-by-nc Journal of Inflammation Research 2024-02-01

This letter proposed a novel miniaturization technique for surface-wave holographic antenna, which determines the layout of antenna by simply cutting out region where scattering is inefficient from original interference pattern. Then, equivalent method physical truncation and perfect magnetic conductor presented theoretically analyzed to increase gain eliminate zeroth-order. For design example radiated at 30 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML"...

10.1109/lawp.2015.2394315 article EN IEEE Antennas and Wireless Propagation Letters 2015-01-01

Electroacupuncture (EA) is reported to possess anti-inflammatory properties and has beneficial effects on acute respiratory distress syndrome (ARDS). However, the underlying mechanisms of EA ARDS remain unclear. This study aims investigate protective effect LPS-induced ARDS. In this study, Sprague-Dawley male rats were treated with at Hegu (LI4) for 45 minutes before LPS instillation (0.4 mg/kg, 100 ul). H&E staining, wet-to-dry weight (W/D) ratio, PaO2, protein content in BALF employed...

10.1155/2020/4594631 article EN cc-by Evidence-based Complementary and Alternative Medicine 2020-01-01

Resonant beam charging (RBC) can realize wireless power transfer (WPT) from a transmitter to multiple receivers via resonant beams. The adaptive RBC (ARBC) effectively improve its energy utilization. In order support multi-user WPT in the ARBC system, we propose time-division access (TDMA) method and design TDMA-based scheduling algorithm. Our TDMA has features of concurrently charging, continuous current, individual user control, constant driving flexible control. simulation shows that...

10.1109/jiot.2018.2863232 article EN IEEE Internet of Things Journal 2018-08-06

Simultaneous wireless information and power transfer (SWIPT) is a remarkable technology to support both the data energy in era of Internet Things (IoT). In this article, we proposed long-range optical system utilizing retro-reflectors, gain medium, telescope internal modulator form resonant beam, achieving high-power high-rate SWIPT. We adopt matrix, which can depict beam modulated, resonator stability, transmission loss, distribution. Then, provide model for harvesting receiving, evaluate...

10.1109/jiot.2022.3209588 article EN IEEE Internet of Things Journal 2022-09-26

The Report on the Work of Government is one important channels to convey China's views and positions international community, it also an window shape good image in community.The 2021 a material study publicity translation that involves politics, economy, culture ecology, which contains many specialized words with Chinese cultural characteristics.Therefore, based theory Eco-Translatology, this paper compares English versions report explores tactics outreach materials from three dimensions:...

10.4236/oalib.1107990 article EN OALib 2021-01-01

In order to estimate fast time-varying channels exactly, the Inter-Carrier Interference (ICI) caused by fading in Orthogonal Frequency Division Multiplexing (OFDM) systems is analyzed based on Basis Expansion Model (BEM). A channel estimation and ICI cancellation algorithm with low complexity proposed. special pilot sequence designed minimize cost of computing state information proposed algorithm. Based property frequency impulse matrix, can be canceled iteratively domain. The theoretically....

10.1093/ietcom/e91-b.4.1203 article EN IEICE Transactions on Communications 2008-04-01

The FinFET technology is considered as the best candidate to extend CMOS down 10 nm. In this paper, a three-dimensional (3-D) parasitic extraction flow proposed for modeling and timing analysis of based circuits. fully considers 3-D geometry employs accurate field solvers extracting resistances capacitances. Thus, it accurately captures prominent coupling effect between lower-layer interconnects. With input industry-standard layout data, outputs SPICE RC netlist analysis. Numerical...

10.1109/icccas.2013.6765268 article EN 2013-11-01

Resonant Beam Charging (RBC) is a promising multi-Watt and multi-meter wireless power transfer method with safety, mobility simultaneously-charging capability. However, RBC system operation relies on information availability including receiver location, class label the number. Since smartphone most widely-used mobile device, we propose Mask R-CNN based detection model in system. Experiments illustrate that our reduces scanning time to one third. Thus, this machine learning approach provides...

10.1109/glocomw.2018.8644387 article EN 2022 IEEE Globecom Workshops (GC Wkshps) 2018-12-01

The construction of telecommunication network is a complex engineering, requiring telecom operators to focus on the operational effects after construction, as well summarize experiences for further improvements. This paper innovatively proposes indicators framework and develops post-evaluation model based analytic hierarchy process (AHP) method. Furthermore, proposed used analyze operation effect in two cities, result verifies that has promising performance practical operators.

10.1109/iucc/dsci/smartcns.2019.00129 article EN 2019-10-01

A hierarchical coordinated voltage correction scheme for active distribution network is proposed in this paper. The control framework consists of the regional autonomy layer and feeder line coordination layer. In layer, controller applies feedback according to local measurement information. action delay each related deviation bus. When one applied, it inhibits other restore voltages same area, which effectively reduces redundant actions. This feature achieved without a communication network,...

10.1109/ei250167.2020.9347359 article EN 2021 IEEE 5th Conference on Energy Internet and Energy System Integration (EI2) 2020-10-30

Resonant Beam Charging (RBC) is a wireless charging technology which supports multi-watt power transfer over meter-level distance. The features of safety, mobility and simultaneous capability enable RBC to charge multiple mobile devices safely at the same time. To detect that need be charged, Mask R-CNN based dection model proposed in previous work. However, considering constraints system, it's not easy apply lightweight hardware-embedded because its heavy huge computation. Thus, we propose...

10.1109/wcsp.2019.8927856 article EN 2021 13th International Conference on Wireless Communications and Signal Processing (WCSP) 2019-10-01
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