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Design and Implementation of Automobile Lights Control System Based on LIN Bus
Xu chunyan,Jiang Feng,Zhao Yunning,Xu Tao 보안공학연구지원센터 2015 International Journal of u- and e- Service, Scienc Vol.8 No.5
In this paper, the problems of traditional wiring harness, Using electronic, computer and communication technology, control system of automobile lights was developed based on the LIN protocol, t according to the LIN protocol to develop and design of an intelligent master node and slave nodes,Completed the hardware selection and circuit design of a master node and slaves, and software analysis and program implementation, forming a part of the body electronic control system, the application works well.
Xu Chunyan,Jiang Yan,Zhang Weichong,Xu Tao 보안공학연구지원센터 2015 International Journal of Smart Home Vol.9 No.9
This paper presents a design and implement method of battery management system about emergency light based on loose capacitance synchronous sampling measure technology and balanced technology. Through the real-time data acquisition, charge and discharge control, the low voltage detection and protection mechanisms of the system, the system achieves protecting the battery pack of emergency light successfully, collecting data accurately and processing the collected data.
Multifunctional, flexible and mechanically resilient porous polyurea/graphene composite film
Xu Cui,Chunyan Zhang,Sherif Araby,Rui Cai,Gulnur Kalimuldina,Zhaokun Yang,Qingshi Meng 한국공업화학회 2022 Journal of Industrial and Engineering Chemistry Vol.105 No.-
In this study, a porous polyurea/graphene platelet (GnP) composite film with high flexibility and multifunctionalitywas developed and investigated for strain sensing and energy storage applications. Morphology and mechanical properties were studied; tensile strength and Young’s modulus wereenhanced by 132% and 900%, respectively at 5 wt% GnPs. The polyurea/GnP film exhibited high sensitivityto various strains– namely, tension, compression, bending and twisting. In tensile strain, gauge factor was1.86 and 6.26 within strain ranges of 0–30% and 30–60%, respectively. Interestingly, the film showedpiezoresistive and capacitive-type strain sensor under compression load; a 33% increase in relative resistancewith response time of 108 millisecond; and 22% increase in relative capacitance with response timeof 92 millisecond when load of 5 kPa was applied. Furthermore, the strain sensor showed high durabilityand reliability over 20,000 cycles. The developed polyurea/GnP film showed a stable capacitive performanceover 20,000 charge–discharge cycles. This work provides important insights for the potential ofpolyurea/graphene films in multifunctional sensors and flexible energy storage applications.
Tao Pan,Chunyan Liu,Qiao Xin,MEI-YING XU,Yangwu Deng,Wei Dong,Shuijing Yu 한국생물공학회 2017 Biotechnology and Bioprocess Engineering Vol.22 No.5
The biodegradation of diphenyl ethers (DEs) in the environment is limited by their high hydrophobicity. The enhancement of DE bioavailability by a cloud point system (CPS) was investigated in this study. Three CPSs (i.e., Triton X-114, Triton X-114 + Triton X-45, and Brij30 + TMN-3) were tested to promote DE biodegradation. Biocompatibility tests showed that the biodegradation of DE and 4-bromodiphenyl ether (4-BDE) was inhibited by TX-114, unaffected by TX-114 + TX-45, and promoted by Brij30 + TMN-3 over 48 h of cultivation with Cupriavidus basilensis and 4% (w/v) nonionic surfactants. Further optimization with 2% (w/v) Brij30 + TMN-3 yielded residual DE and 4-BDE quantities of 143 and 154 mg/L, respectively, lower than quantities in the control. During degradation, DE content did not decrease in the dilute phase, but sharply decreased in the coacervate phase, indicating that the DEs gradually diffused and transferred from the coacervate phase to the dilute phase for degradation by microbial cells. This behavior also enhanced the bioavailability of DEs in the CPS. By removing the cellrich dilute phase and adding fresh degradation medium and DE to the coacervate phase, surfactants were successfully recovered and reused twice without affecting DE biodegradation. Results demonstrated that a CPS with 2% (w/v) Brij30 + TMN-3 not only enhanced the bioavailability of DEs, but also decreased the treatment cost through surfactant recycling, which is beneficial for large-scale applications.
Xueyang Li,Juanjuan Xu,Wei Wang,Chunyan Han 제어·로봇·시스템학회 2024 International Journal of Control, Automation, and Vol.22 No.1
This paper considers the stabilization and optimal control of networked control systems possessing two controllers, in which the local controller and the remote controller transmit state information over multiple erasure channels. Multiple controllers are introduced for the first time in this multi-mode system. The coupling of the two controllers and the dependence of the adjacent-time jumping parameters make the control problem more difficult. For the finite horizon, the existence conditions and the explicit solutions to the optimal controllers are given in virtue of two coupled difference Riccati equations (CDREs). For the infinite horizon, the necessary and sufficient conditions of stabilizability are presented and the corresponding optimal controllers are derived with a new set of coupled algebraic Riccati equations (CAREs). Numerical examples are used to demonstrate the effectiveness of the proposed algorithms.
A magnetostrictive self-powered biosensor based on Au-BaTiO3-FeGa & PDMS
Qiang Zhang,Meng Xu,Yan Liu,Chunyan Zhang,Rui Zhang,Zhiyuan Fu,Jianlong Ji,Riguang Zhang,Shengbo Sang 한국공업화학회 2023 Journal of Industrial and Engineering Chemistry Vol.117 No.-
Piezoelectric flexible sensors have been used to detect biomolecules such as sweat and glucose because oftheir passive, simple structure and high sensitivity. This paper proposes a novel flexible piezoelectric Au-BaTiO3-FeGa & PDMS biosensor in which magnetostrictive deformation amplifies the surface stress generatedby biomolecules combining on the thin film. The modification process of bovine serum albumin(BSA) binding with the sensor was initially determined by the first principles approach. Then, the sensingmechanism was verified by finite-element simulation. Based on the simulation results, flexible Au-BaTiO3-FeGa & PDMS biosensors were prepared, modified, and measured. The structure, modification,and detection of the sensors were analyzed by digital microscopy, Fourier transform infrared spectrometry(FTIR), atomic force microscopy (AFM), and scanning electron microscopy (SEM). The responses ofthe biosensors detecting different BSA solution concentrations under magnetic fields were then investigated. Experimental results indicate that the biosensor has the highest sensitivity under a magnetic fieldof 30 mT.