Search

Your search keyword '"Zhu, Jiangwei"' showing total 147 results
Start Over Author "Zhu, Jiangwei"
147 results on '"Zhu, Jiangwei"'

10. Design and implementation of communication middleware of heterogeneous processors in STRS system

Author

Qian Hongwen, Zhu Jiangwei, Wu Yihu, Yang Xu, Fang Hai, and Chen Xianzhou

Subjects
data distribution service, space telecommunication radio system, publish/subscribe, Electronics, TK7800-8360
Abstract

Aiming at the problems of low real-time performance, large redundancy, and inability to recover from faults in the communication between heterogeneous processors in the Space Telecommunication Radio System (STRS),the distributed data distribution service (DDS) middleware technology is introduced into the STRS architecture to realize the publish/subscribe mode-based communication middleware between the STRS heterogeneous processor waveform application components.Under the premise of being fully compatible with the STRS standard specification, it effectively improves the real-time performance of the communication system based on STRS, reduces the complexity and redundancy of the system, improves the development efficiency, saves the development and maintenance costs of the system, and realizes the dynamic refactoring of global and local modules.

Published
2023
Full Text
View/download PDF

23. Structural phase transition and multiferric properties of Y, Eu co-doped BiFe0.97Mn0.03O3 nanoparticles.

Author

Ge, Zhiyong, Zhu, Jiangwei, Xue, Hongtao, and Mao, Weiwei

Abstract

Pure BiFeO3 (BFO), BiFe0.97Mn0.03O3 and Bi0.9YxEu0.1−xFe0.97Mn0.03O3 (x = 0.03, 0.05 and 0.07) nanoparticles were synthesized to study the relation between multiferroic properties and structure. The XRD results in such undoped and doped samples suggested that the rhombohedral structure was distorted due to the co-doping, whereas the modification has an impact on the structural parameters. Scanning electron microscopy studies clearly showed the decrease of average grain size due to the co-doping of Y and Eu in the BFO. Moreover, the presence of Y and Eu caused an increment in the magnetic and ferroelectric properties, and the sample with the highest Mr (0.154 emu/g) and Hc (9.02 kOe) values was the x = 0.07 one. The origin of such enhanced multiferroic properties has been demonstrated on the structural phase transition. [ABSTRACT FROM AUTHOR]

Published
2024
Full Text
View/download PDF

27. Improved Detection of Veterinary Drug Residues: Advancing Analytical Techniques to Ensure Food Safety

Author

Fu, Li, Zhu, Jiangwei, and Zhou, Qingwei

Abstract

Veterinary drug residues in foods pose risks to consumers and promote antimicrobial resistance. Effective detection methods are needed to monitor and control residues. Recent advancements in analytical techniques for veterinary drug residue detection were reviewed. Key sample preparation methods, including QuEChERS, SPE, ASE, and LLE, were summarized. Instrumental analysis techniques including LC-MS/MS, GC-MS, immunoassays, CE and biosensors were examined. Recent trends and future directions were identified.LC-MS/MS and GC-MS provide the highest sensitivity and specificity for veterinary drug residue analysis. However, selectivity remains a challenge, particularly for complex matrices like meat and liver. Multi-residue methods now cover over 100 analytes, but analyzing new and legacy drugs lacking established methods is difficult. Increased sensitivity has been achieved through UHPLC and high resolution MS, but detection limits below 1 µg/kg often remain elusive. sSimplified onsite tests are gaining interest.More selective extraction strategies, data-driven multi-residue methods, microflow LC, and integrated analytical platforms may help address current challenges. Continued advances in sample preparation, instrumentation, data processing, and validation will be needed to fully realize the potential of veterinary drug residue detection and ensure food safety.

Published
2024
Full Text
View/download PDF

34. Advances in the Use of Graphene Nanocomposites for the Electrochemical Determination of Glucose: A Review

Author

Zhou Qinwei, Wu Weihong, Fan Boyuan, Zhu Jiangwei, and Fu Liqing

Subjects
Graphene nanocomposites, Chemistry, Biophysics, Pharmaceutical Science, Molecular Medicine, Nanotechnology, Electrochemistry, Biochemistry
Abstract

Background: Glucose detection is of great significance in biomedicine. In clinical medicine, diabetes seriously endangers human health. By accurately measuring the blood glucose content of diabetic patients, diabetes can be effectively monitored and treated. At present, there are many methods for measuring glucose content, such as chromatography, spectroscopy, and electrochemical methods. Among them, electrochemical glucose sensors are widely used because of their high reliability, low cost, and easy operation. Methods: Combining graphene with other nanomaterials (including graphene, metal oxides, semiconductor nanoparticles, polymers, dye molecules, ionic liquids and biomolecules) is an effective way to expand or enhance the sensing performance. Results: The composite of graphene and nanomaterials is an effective way to enhance the functionality of the electrochemical sensor. Graphene can accelerate electron transfer and realize direct electrochemistry and biological sensing. At the same time, graphene derivatives with rich composition and structure provide the possibility to further regulate their electrochemical performance. These graphene composite-based biosensors have shown excellent sensitivity and selectivity for glucose detection. Conclusion: Electrochemical glucose sensors based on graphene composite have received extensive attention. Although these materials have made significant progress in improving the sensitivity, lowering the detection limit and broadening the linear range, there are still facing challenges that require further study.

Published
2022

35. Application of Solid-state Electrochemical Analysis in Ancient Ceramic Identification and Characterization: A Review

Author

Liu Guangfu, Fu Li, Xie Kefeng, Yang Xinghua, Zhu Jiangwei, and Ye Weiting

Subjects
Materials science, visual_art, visual_art.visual_art_medium, Solid-state, Nanotechnology, Identification (biology), Ceramic, Electrochemistry, Analytical Chemistry, Characterization (materials science)
Abstract

Background: Ceramics can reflect ancient technology and art, therefore, it has a very important position in archaeology. However, it is far from enough just to study the shape of pottery and porcelain. It is necessary to use advanced scientific and technological means to conduct a comprehensive analysis of pottery and porcelain, so as to study the information hidden deep in the remains of ceramic objects. Methods: The solid voltammetric method can be used to obtain information about the composition of materials used in ancient ceramics. This new method can be applied to insoluble solids for example, providing qualitative and quantitative information and structural information with little soluble solids. The method requires only ng-μg sample. Results: In this review, we first describe the development of solid-state voltammetric method and our work in this field. Then, we describe in detail the application of this method in archaeology, especially in the analysis of ceramics. Finally, we describe the analytical applications of other electrochemical techniques for ceramics analysis. Conclusion: Due to the low demand for samples and the high-cost performance of analytical instruments, this method has been widely studied in Europe. To sum up, we propose to establish a microsampling method for ancient ceramics. A new method for the protection of fine ancient ceramics by the suitable carrier and the fixation on the surface of the electrode. These improvements can enable solid-state electroanalytical chemistry technology to achieve more comprehensive and accurate quantitative analysis of ancient ceramics particles. We also propose the current challenges and future directions of solid-state electroanalytical chemistry.

Published
2022

40. A memristor based on two-dimensional MoSe2/MoS2 heterojunction for synaptic device application.

Author

Liu, Ping, Luo, Huiming, Yin, Xiaomiao, Wang, Xingfu, He, Xuemin, Zhu, Jiangwei, Xue, Hongtao, Mao, Weiwei, and Pu, Yong

Subjects
HETEROJUNCTIONS, MEMRISTORS, LONG-term synaptic depression, RF values (Chromatography)
Abstract

Two-dimensional materials are promising for exploring memristors with excellent performance. However, the memristor still faces challenges in insufficient reliability due to resistance-switching mechanisms of conductive filaments. In this work, a typical metal/heterojunction/metal structure (Ag/MoSe2/MoS2/Au/Ti) was proposed as the device architecture of the memristor. The device exhibits stable bipolar resistive switching behavior with a high on–off ratio, long retention time, and good endurance. The resistance-switching is achieved by adjusting the interface barrier of the MoSe2/MoS2 due to the band modulation. Moreover, we explore the essential synaptic functions of this memristor device, with outstanding voltage pulse potentiation and depression. Our work highlights the significant prospects of MoSe2/MoS2 heterojunction in artificial synapses and neural networks. [ABSTRACT FROM AUTHOR]

Published
2022
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results