Weitao He

Fudan University

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Yaxin Zeng

Fudan University

Chuanyi Ning

Guangxi Medical University

Jing Wang

First People's Hospital of Yunnan Province

Junfu Wang

Jiangsu Yanjiang Chemical Resources Development Research Institute (China)

Lina Jiang

Xiamen University

Dandan Wang

Hubei Normal University

Ziyang Jiao

Shanghai Fudan Microelectronics (China)

Bi FuYin

Guangxi Center for Disease Prevention and Control

Tenghao Zou

Shanghai Fudan Microelectronics (China)

Chunbo Liu

Jilin Normal University

Cooperative Institutions

Fudan University

Harbin Medical University

Chinese Academy of Sciences

Second Affiliated Hospital of Harbin Medical University

University of Chinese Academy of Sciences

Shanghai Fudan Microelectronics (China)

Institute of Microelectronics

Tongji University

Jilin Normal University

Institute of Physics

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A 5–18-GHz Reconfigurable Quadrature Receiver With Enhanced I–Q Isolation and 100–500-MHz Baseband Bandwidth

IEEE Journal of Solid-State Circuits (2024)

Junyan Bi Hao Xu Tenghao Zou Yaxin Zeng Yechen Tian

Quadrature (astronomy)

10.1109/jssc.2024.3515198

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3D printed Si-CaP scaffold released SiO₃^2- and Ca²⁺ to synergistically promote angiogenesis

Journal of Biomaterials Applications (2023)

Y. J. Mo Weitao He Shiqi Hu Hongchun Guo Shuangzuo Li

Structuring scaffold with both osteogenic and angiogenesis capabilities is a challenge for bone tissue engineering. Powder structured Si-CaP materials have shown excellent osteogenic properties and induction of stem cell differentiation. Our research group have successful produced 3D printed Si-CaP scaffolds by DLP technology. This study aims to explore the angiogenic effects of SiO

3d printed

10.1177/08853282231216546

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Synthesis of Pvdf Membrane Loaded with Wrinkled AU Nps for Sensitive Detection of R6g

SSRN Electronic Journal (2022)

Junfu Wang Qing Lin Dandan Wang Haochen Yu Weitao He

A novel SERS membrane is synthesized by combining metal lattice and surface enhanced Raman scattering (SERS) technology and applied into the detection of R6G. The SERS substrates are synthesized by loading Au nanoparticles (Au NPs) on the surface of polyvinylidene fluoride (PVDF) membrane. The Au NPs are synthesized through a controllable hydrothermal method. The synthesized AuNPs are covered by some gold particles, forming a fold pattern. Finally, the synthesized structure is immobilized on the surface of the PVDF membrane by the phase inversion method. It is suggested that the prepared Au NPs@PVDF membrane exhibits adjustable cavity structure, strong plasmon coupling, tunable magnetic plasmon resonance, prominent SERS performances. The prepared Au NPs@PVDF membrane shows sensitive SERS activity. Overall, this study establishes a novel technique for the synthesis of SERS membrane with excellent SERS property and expands the application field of SERS detection.

10.2139/ssrn.4070821

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Citations (2)

Fast charge storage kinetics by surface engineering for Ni-rich layered oxide cathodes

Journal of Materials Chemistry A (2023)

Jiacheng Wang Zhenyu Zhang Weitao He Zhixuan Wang Suting Weng

Li-vacant layered surface structures and reduced Li residuals achieved by water treatment boost transport kinetics of Ni-rich layered oxide cathodes.

Surface charge

10.1039/d3ta00890h

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Citations (24)

N_2O production and mechanism in recently developed biological nitrogen removal processes

Acta Scientiae Circumstantiae (2010)

Weitao He

Nitrous oxide(N2O) is a serious greenhouse gas.Nitrification and denitrification in biological nitrogen removal processes are considered the major sources of N2 O in wastewater treatment.The mechanisms of the newer biological nitrogen removal processes,such as short-cut nitrification and denitrification,simultaneous nitrification and denitrification,anaerobic ammonium oxidation(ANAMMOX) and denitrifying phosphorus removal are illustrated in this work.Also,the N2O emissions under non-steady conditions for these nitrogen removal processes and the impacts of COD/N、DO and NO2-on the N2O production are introduced.The causes of N2O production during nitrogen removal are discussed from the point of view of microbiology and biochemistry.Since global warming is a serious problem,revealing the N2O emission mechanism and establishing efficient control strategies for these biological nitrogen removal processes are urgently needed to prevent the transfer of environmental pollution from the water environment to the atmosphere.

Anammox

Nitrous oxide

Nitrogen Cycle

Nutrient pollution

Aerobic denitrification

Source

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5.1 A 5-to-16GHz Reconfigurable Quadrature Receiver with 50% Duty-Cycle LO and IQ-Leakage Suppression

2022 IEEE International Solid- State Circuits Conference (ISSCC) (2024)

Hao Xu Junyan Bi Tenghao Zou Weitao He Yaxin Zeng

Agile multi-functional RF systems supporting multiple communication and radar protocols are of greater demand in modern wireless applications. The core of these systems is the transceiver IC that covers an ultra-wide frequency range from sub-GHz to >20GHz, provides highly flexible signal bandwidths, and adjusts its power consumption accordingly in different use cases. This imposes several design challenges. Firstly, the RF front-end must process the incoming signal over a wide frequency range (f RF ) without contributing excessive noise and distortions [1, 2]. Secondly, the difficulty of generating multi-phase clocks with low phase mismatches and low jitter that are essential for mixing grows significantly at higher carrier (f LO ) frequencies [2]. Thirdly, whereas the power consumption of the front-end remains independent of the baseband signal bandwidth (f BB ) on the first order, the analog baseband intensively using amplifiers sees dramatic power overhead with increasingly higher f BB [3]. Lastly, the desired high reconfigurability including gain, bandwidth and power consumption inevitably complicates circuit design [4]. To address these challenges, this work describes a 5-to-16GHz, 32-to-72dB gain and 2.2-to-5.7dB noise figure (NF) quadrature RF receiver with on-chip multi-phase clock generation and enhanced I-Q isolation.

Duty cycle

Leakage (economics)

Quadrature (astronomy)

10.1109/isscc49657.2024.10454493

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Effect of anaerobic reaction time on denitrifying phosphorus removal and N2O production

Bioresource Technology (2011)

Yayi Wang Junjun Geng Zhongjia Ren Weitao He Meiyan Xing

10.1016/j.biortech.2011.02.080

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Citations (75)

A 47μW Wake-Up Receiver with -77dBm Sensitivity Using a Mixer-First Architecture

Weitao He Yaxin Zeng B Jia Hao Min Hao Xu

10.1109/icsict62049.2024.10832015

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Effect of copper ion on the anaerobic and aerobic metabolism of phosphorus-accumulating organisms linked to intracellular storage compounds

Journal of Hazardous Materials (2010)

Yayi Wang Zhongjia Ren Fan Jiang Junjun Geng Weitao He

Volatile suspended solids

Extracellular polymeric substance

10.1016/j.jhazmat.2010.11.007

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Citations (34)

Epidemiology of influenza virus reinfection in Guangxi, China: a retrospective analysis of a nine-year influenza surveillance data

International Journal of Infectious Diseases (2022)

Jing Wang Lina Jiang Yunan Xu Weitao He Chao Zhang

Epidemiological characteristic profile of the reinfection of the influenza virus has not been well described.This study included all influenza cases of Guangxi, China from January 2011-December 2019 that were recorded in the National Notifiable Infectious Disease Reporting Information System (NIDRIS) within 24 hours after diagnosis.A total of 53,605.6 person-months and the median time of 8.7 months were observed for reinfection. The median age at the first influenza virus infection was 4.5 (interquartile range=2.0-7.5) years. The cumulative reinfection incidence was 2% at 6 months, 4% at 12 months, 5% at 24 months, and 7% after 59 months. Living in the rural area (hazard ratio [HR]=1.37 [95% confidence interval (CI), 1.29-1.45]), age ≤6 years (HR=11.43 [95% CI, 9.47-13.80]) were independent risk factors associated with influenza reinfection. Among 49 patients experiencing two laboratory tests, 32 patients (65.3%) were found to be infected with different virus types. The interval between two consecutive laboratory-confirmed episodes of the four groups differed (p=0.148): the maximum was 72.9 months and the minimum was 1.2 months.The reinfection of the influenza virus in Guangxi was independently and positively associated with living the rural area and younger age. The unusually high frequency of reinfection points to a need for further prospective longitudinal studies to better investigate the sufficient impact on different subtypes.

Interquartile range

Notifiable disease

Cumulative incidence

10.1016/j.ijid.2022.04.045

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Citations (12)