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7th International Conference on Electronics technology, ICET 2024

作者： Wang, Jie Zhang, Jinping Tu, Yuanyuan Zhang, Yanzhao Wu, Pengfei Sun, Shuai Zhang, Bo Beijing Institute of Smart Energy State Key Laboratory of Advanced Power Transmission Technology Beijing102209 China University of Electronic Science and Technology of China National Key Laboratory of Electronic Thin Films and Integrated Devices Chengdu610054 China

ISBN: (纸本)9798350363951

A novel current enhancement silicon carbide (SiC) planar gate insulated gate bipolar transistor (IGBT) with composite barrier (CB) structure (CBCE-IGBT) is proposed and analyzed in this paper. Combined with the P-shield layer in the junction field effect transistor (JFET) region, dual hole barrier provided by the featured CB structure not only reduces the electric field in the gate oxide layer in the blocking state but also enhances the conductivity modulation and then optimizes the carrier distributions in the N-drift region in the conduction state. Consequently, an ultra-low loss SiC IGBT is obtained with improved reliability. Simulation results show that the on-state voltage drop (V ceon ) of the proposed CBCE-IGBT is only 4.5 V at the collector current density (JC ) of 100 ~A / cm2, which is 0.47 V and 2.11V lower than that of the SiC IGBT with current enhancement layer (CEL-IGBT) and conventional SiC IGBT (Con-IGBT), respectively. At the same Vceon of 6.4 V, the turn-off loss (E off ) of the proposed CBCE-IGBT is 16.5 % and 71.7 % lower than that of the CEL-IGBT and Con-IGBT, respectively. It realizes a superior E off -V ceon trade-off relationship. The heat generated and temperature raised for the proposed CBCE-IGBT during turn-off period are significantly reduced due to its lower E off , which exhibits enhanced turn-off ability under large current and high temperature. The proposed CBCE-IGBT can be turned off effectively at the temperature of 450 K and 4 times of nominal working current without experiencing any deterioration. In addition, the fabrication of the proposed CBCE-IGBT is compatible with the Con-IGBT and CEL-IGBT. © 2024 IEEE.

关键词： Insulated gate bipolar transistors (IGBT)

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Modulating Electromagnetic Genes Through Bi-Phase High-Entropy Engineering Toward Temperature-Stable Ultra-Broadband Megahertz Electromagnetic Wave Absorption

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纳微快报（英文版） 2025年第7期17卷 254-269页

作者： Xiaoji Liu Yuping Duan Nan Wu Guangming Li Yuan Guo Jiangyong Liu Ning Zhu Qiang Wang Lin Wang Zichen Xu Hao Wei Guojun Wang Zhijia Zhang Songsong Zhang Wenjun Zhou Teng Ma Tongmin Wang Qingdao Innovation and Development Base of Harbin Engineering University Harbin Engineering UniversityQingdao 266000People's Republic of China Key Laboratory of Solidification Control and Digital Preparation Technology School of Materials Science and EngineeringDalian University of TechnologyDalian 116085People's Republic of China National Key Laboratory of Electromagnetic Effect and Security On Marine Equipment China Ship Development and Design CenterWuhan 430205People's Republic of China Wuhan Second Ship Design and Research Institute Wuhan 430205People's Republic of China

Magnetic absorbers with high permeability have significant advantages in low-frequency and broadband electromagnetic wave(EMW)***,the insufficient magnetic loss and inherent high conductivity of existing magnetic absorbers limit the further expansion of EMW absorption ***,the spinel(FeCoNiCrCu)3O4 high-entropy oxides(HEO)are successfully constructed on the surface of FeCoNiCr0.4Cu0.2 high-entropy alloys(HEA)through low-temperature oxygen bath *** the one hand,HEO and HEA have different magnetocrystalline anisotropies,which is conducive to achieving continu-ous natural resonance to improve magnetic *** the other hand,HEO with low conduc-tivity can serve as an impedance matching layer,achieving magneto-electric *** the thickness is 5 mm,the minimum reflection loss(RL)value and absorption band-width(RL＜-5 dB)of bi-phase high-entropy composites(BPHEC)can reach-12.8 dB and 633 MHz,*** RCS reduction value of multilayer sample with impedance gradi-ent characteristic can reach 18.34 dB *** addition,the BPHEC also exhibits temperature-stable EMW absorption performance,high Curie temperature,and oxidation *** absorption bandwidth maintains between 593 and 691 MHz from-50 to 150 ℃.This work offers a new and tunable strategy toward modulating the electromagnetic genes for temperature-stable ultra-broadband megahertz EMW absorption.

关键词： Bi-phase high-entropy composites Electromagnetic genes Electromagnetic wave absorption Continuous natural resonance Ultra-broadband

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Bioinspired menstrual blood-derived stem cells-conditioned medium/polymersome nanoparticles for the treatment of carbon tetrachloride-induced acute liver failure in mice

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Aggregate 2024年第4期5卷 376-385页

作者： Zuhong Li Qian Li Xiaoxi Ouyang Shima Tang Qiuhong Liu Yaqi Zhang Yanhong Zhang Xiaopeng Yu Danhua Zhu Ying Mu Lanjuan Li State Key Laboratory for the Diagnosis and Treatment of Infectious Diseases National Clinical Research Center for Infectious DiseasesCollaborative Innovation Center for Diagnosis and Treatment of Infectious DiseasesNational Medical Center for Infectious DiseasesThe First Affiliated HospitalZhejiang University School of MedicineHangzhouChina Research Centre for Analytical Instrumentation College of Control Science and EngineeringState Key Laboratory of Industrial Control TechnologyZhejiang UniversityHangzhouChina

Acute liver failure is a life-threatening syndrome,for which liver transplantation is presently the most effective ***,such treatment is extremely limited by a shortage of donor *** cell therapy offers a promising treatment strategy for acute liver ***,therapeutic efficacy and potential are hampered by administration route and safety *** this work,we fabricated menstrual blood-derived stem cells-conditioned medium/polymersome hybrid nanoparticles that were self-assembled from amphiphilic block copolymers via the direct hydra-tion method and encapsulated therapeutic bioactive factors within the aqueous core of *** merit of vesicular architecture enabled the loading capacity of dis-tinct proteins and the maintenance of biological *** hybrid nanoparticles can be steadily taken up into cytoplasm and promote hepatocyte proliferation in *** in vivo circulation time brought higher accumulation in *** therapeutic nanoparticles alleviated hepatic injury and promoted liver recovery in mice with carbon tetrachloride-induced liver *** the feasibility and benefit of the hybrid nanoparticle therapy,it provided a potential strategy to treat acute liver failure.

关键词： acute liver failure MenSCs-conditioned medium nanoparticles polymersomes

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A chitosan-based antibacterial hydrogel with injectable and self-healing capabilities

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Marine Life science & technology 2024年第1期6卷 115-125页

作者： Rui Chen Yanan Hao Secundo Francesco Xiangzhao Mao Wen-Can Huang State Key Laboratory of Marine Food Processing and Safety Control College of Food Science and EngineeringOcean University of ChinaQingdao 266404China Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology Qingdao 266237China Qingdao Key Laboratory of Food Biotechnology Qingdao 266404China Key Laboratory of Biological Processing of Aquatic Products China National Light IndustryQingdao 266404China Istituto di Scienze e Tecnologie Chimiche“Giulio Natta” Consiglio Nazionale delle Ricerche via Mario Bianco 920131 MilanItaly

The presence of bacteria directly affects wound ***-based hydrogel biomaterials are a solution as they offer advantages for wound-healing applications due to their strong antimicrobial ***,a double-cross-linking chitosanbased hydrogel with antibacterial,self-healing,and injectable properties is *** chitosan was successfully prepared,and the thiolated chitosan molecules were cross-linked by Ag-S coordination to form a supramolecular ***,the amine groups in the thiolated chitosan covalently cross-linked with genipin to further promote hydrogel *** vitro experimental results indicate that hydrogel can release Ag^(+)over an extended time,achieving an antibacterial rate of over 99% against Escherichia coli and Staphylococcus *** to the reversible and dynamic feature of Ag-S coordination,an antibacterial hydrogel exhibited injectable and self-healing ***,the hydrogel showed excellent biocompatibility and biodegradability.

关键词： Hydrogel Chitosan Silver ion Cross-linking Antibacterial

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The degradation pathways of contaminants by reactive oxygen species generated in the Fenton/Fenton-like systems

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Chinese Chemical Letters 2024年第10期35卷 158-169页

作者： Chi Zhang Ning Ding Yuwei Pan Lichun Fu Ying Zhang Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution College of Environmental Science and EngineeringNankai UniversityTianjin300350China Key Laboratory of Cleaner Production and Integrated Resource Utilization of China National Light Industry Beijing Technology and Business University.Beijing100048China College of Biology and the Environment Nanjing Forestry UniversityNanjing 210037China School of Iron and Steel Soochow UniversitySuzhou 205000China Key Laboratory of Pollution Process and Environmental Criteria Ministry of EducationCollege of Environmental Science and EngineeringNankai UniversityTianjin300350China

Reactive oxygen species(ROSs)in Fenton process are of great importance in treating contaminants in *** is crucial to understand their chemical properties,formation,and reaction mechanisms with *** review summarizes the reactive oxygen species in Fenton process,including hydroxyl radical(·OH),superoxide radical(O_(2)·-),singlet oxygen(1O_(2)),hydroperoxyl radical(HO_(2)·),and high-valent iron.·OH shows a trend to react with chemistry groups with abundant electrons through H-atom abstraction,radical adduct formation and single electron *** transfer is discovered to be an important pathway when1O_(2)degrades organic ***-opening andβ-scission are proposed to be the possible ways of1O_(2)to certain *** abstraction,nucleophilic substitution,and single electron transfer are proposed to explain how O_(2)·-degrade *** the conjugated acid of O_(2)·-,radical adduct formation and H-atom abstraction are reported for the reaction mechanisms of hydroperoxyl ***-valent iron in Fenton,namely Fe(IV),reacts with certain pollutants via single-or two-electron *** review is important for researchers to understand the ROSs produced in Fenton and how they react with pollutants.

关键词： Fenton Hydroxyl radical Superoxide radical Singlet oxygen Hydroperoxyl radical High-valent iron

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Interface Modification of TiO_(2)Electron Transport Layer with PbCl_(2)for Perovskiote Solar Cells with Carbon Electrode

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Tsinghua science and technology 2022年第4期27卷 741-750页

作者： Abolfazl Amraeinia Yuhua Zuo Jun Zheng Zhi Liu Guangze Zhang Liping Luo Buwen Cheng Xiaoping Zou Chunbo Li Key Laboratory on Integrated Optoelectronics Institute of SemiconductorChinese Academy of SciencesBeijing 100083China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China Beijing Advanced Innovation Center for Materials Genome Engineering Beijing Key Laboratory for SensorMOE Key Laboratory for Modern Measurement and Control TechnologyBeijing Information Science and Technology UniversityBeijing 100101China School of Science Minzu University of ChinaBeijing 100081China

Perovskite Solar Cells(PSCs)have attracted considerable attention because of their unique features and high ***,the stability of perovskite solar cells remains to be *** this study,we modified the TiO_(2)Electron Transport Layer(ETL)interface with PbCl_(2).The efficiency of the perovskite solar cells with carbon electrodes increased from 11.28%to 13.34%,and their stability obviously *** addition of PbCl_(2)had no effect on the morphology,crystal structure,and absorption property of the perovskite absorber ***,it affected the band energy level alignment of the solar cells and accelerated the electron extraction and transfer at the interface between the perovskite layer and the ETL,thus enhancing the overall photovoltaic *** interfacial modification of ETL with PbCl_(2)is a promising way for the potential commercialization of low-cost carbon electrode-based perovskite solar cells.

关键词： Perovskite Solar Cell(PSC) Electron Transport Layer(ETL) electron and hole recombination modification stability

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Glutamate increases the lean percentage and intramuscular fat content and alters gut microbiota in Shaziling pigs

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Animal Nutrition 2025年第1期20卷 110-119页

作者： Changbing Zheng Mengliao Wan Qiuping Guo Yehui Duan Yulong Yin CAS Key Laboratory of Agro-ecological Processes in Subtropical Region Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic ProcessNational Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry ProductionInstitute of Subtropical AgricultureChinese Academy of SciencesChangsha 410125China College of Animal Science and Technology Hunan Agricultural UniversityChangsha 410128China University of Chinese Academy of Sciences Beijing 100039China

This study aimed to explore the effects of glutamate(Glu)supplementation on the growth performance,carcass traits,meat quality,composition of amino acids and fatty acids in the longissimus dorsi muscle,and the colonic microbial community of Shaziling pigs.A total of 48 healthy male Shaziling pigs(150 d,31.56±0.95 kg)were randomly assigned to two groups,and fed a basal diet with no supplement(control group)or supplemented with 1%Glu(Glu group)for 51 d,and 6 pigs per group were finally *** significantly increased the average daily gain(P=0.039),lean percentage(P=0.023),and intramuscular fat(IMF)content(P=0.015),and decreased the fat percentage(P=0.021)of Shaziling *** the muscle,Glu increased the concentrations of inosine-50-monophosphate(P=0.094),Fe(P=0.002),Cu(P=0.052),and monounsaturated fatty acids(MUFAs)(P=0.024),and decreased the content of C18:2n6(P=0.011),n-6 polyunsaturated fatty acids(n-6 PUFAs)(P=0.014),and PUFAs(P=0.014).Moreover,Glu significantly upregulated the mRNA expression of adipogenesis-related genes(FAS,SREBP-1C)(P=0.032,P=0.026)and muscle growth-related genes(MyHCIIb,MyHCIIx)(P=0.038,P=0.019)in the muscle,and increased the relative abundance of Spirochaetota(P<0.001)and the acetic acid content in the colon(P=0.039).Correlation analysis indicated that the acetic acid content was positively correlated with the relative Spirochaetota abundance and the IMF content,and a negative trend with the fat percentage of Shaziling *** conclusion,these results indicated that Glu could simultaneously increase the lean percentage and IMF content and decrease the fat percentage of Shaziling pigs,and these beneficial effects may be related to increased colonic Spirochaetota abundance and acetic acid concentrations.

关键词： Glutamate Shaziling pig Lean percentage Intramuscular fat content Spirochaetota Acetic acid

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A Software Architecture for Collaborative Flight of Fixed-Wing UAV Swarms

A Software Architecture for Collaborative Flight of Fixed-Wi...

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International Conference on Guidance, Navigation and control, ICGNC 2022

作者： Yang, Yukun Tang, Qiang Li, Hao Ma, Shichao Zang, Xiheng AVIC Xi’an Flight Automatic Control Research Institute Xi’an710076 China National Key Laboratory of Science and Technology On Aircraft Control Xi’an710076 China

ISBN: (纸本)9789811966125

The collaborative flight of unmanned aerial vehicle (UAV) swarm has always been a hot issue in control science. This paper designs a scalable componentized software architecture for the actual scenario of fixed-wing UAV swarm collaborative flight. Base on the hierarchical structure of the UAV swarm system, we analyze the software requirements of functions and performance, and propose an onboard software architecture, which consist of real-time operating system (RTOS), board support package (BSP) and application layer software. In addition, the flight control and swarm communication of UAV swarms are described in this paper. Finally, the proposed software architecture is verified by field test and data analysis. © 2023, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

关键词： Fixed wings

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A Space Formation Transformation Method Based on Formation Database

A Space Formation Transformation Method Based on Formation D...

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International Conference on Guidance, Navigation and control, ICGNC 2022

作者： Qin, Wei Zhang, Xianglun Yue, Yazhou Zuo, Ling Tang, Qiang AVIC Xi’an Flight Automatic Control Research Institute Xi’an710076 China National Key Laboratory of Science and Technology on Aircraft Control Xi’an710076 China

ISBN: (纸本)9789811966125

A simple matrix description method is proposed, which define the formation relationship between the UAV swarm leaders and wingmen, and establishes formation database matrix sets of different formations. On the basis of this formation database, a space formation change method is proposed. It adopts the method of staggering the height layers, even if all the UAVs in the swarm are distributed at different height layers during the formation change, and then the formation change in the horizontal is carried out. There is no risk of collision when the formation is changed, and the precise change of the formation is completed, which improved the safety of the formation change. This method is simple and easy to implement. © 2023, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

关键词： Database systems

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Formation control of UAVs with Prescribed Performance Based on Backstepping Method

Formation Control of UAVs with Prescribed Performance Based ...

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International Conference on Guidance, Navigation and control, ICGNC 2022

作者： Ma, Shichao Zhang, Xianglun Yang, Yukun Zang, Xiheng AVIC Xi’an Flight Automatic Control Research Institute Xi’an710076 China National Key Laboratory of Science and Technology on Aircraft Control Xi’an710076 China

ISBN: (纸本)9789811966125

In order to deal with the formation control problem for multiple unmanned aerial vehicles (UAVs), a prescribed performance control (PPC) scheme based on backstepping method is developed. Firstly, the nonlinear mathematical model with bounded external disturbance is established. Meanwhile, the tracking error model of UAV formation is formulated on the basis of graph theory. For the purpose of limiting the tracking error within a small range, a performance function is recommended. Furthermore, considering that the direct processing of the initial system has great difficulties, an error transformation function is adopted. Based on PPC theory, the structure of the control law is deduced by utilizing the backstepping method. In addition, the derivation process of stability analysis is shown in detail. The simulation results show the superiority of trajectory tracking performance, which demonstrates the validity of the designed control scheme. © 2023, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

关键词： Graph theory

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