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Photoconductive semiconductor switch-based triggering with 1 ns jitter for trigatron

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Matter and Radiation at Extremes 2018年第5期3卷 256-260页

作者： Langning Wang Yongsheng Jia jinliang liu Taiyuan Satellite Launch Center Kelan 036300China College of Optoelectronic Science and Engineering National University of Defense TechnologyChangsha 410073China

Synchronization for multiple-pulse at nanosecond range shows a great value on the power multiplication and synchronous electric fieldsapplications. Nanosecond or sub-ns jitter synchronization is essential for the improved working efficiency of the large amounts of pulse modulesand accurate requirements for the power coherent combining applications. This paper presents a trigger generator based on a laser diodetriggered GaAs photoconductive semiconductor switch (PCSS) with low jitter and compact size characteristics. It avoids the high currentsthat are harmful to high-gain mode PCSSs. In the trigger circuit, a 200 pF capacitor is charged by a microsecond-scale 18 kV pulse and thendischarged via the high-gain mode GaAs PCSS to trigger the high-power trigatron switch. When triggered by the ~10 ns pulse generated by thePCSS, the DC-charged trigatron can operate in the 20e35 kV range with 10 ns rise time and 1 ns delay-time jitter.

关键词： Pulsed power High power switches Synchronization Trigger generator Photoconductive semiconductor switch

Stabilization for networked control systems under stochastic cyber-attacks 36

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Stabilization for networked control systems under stochastic...

Modeling and analyzing dynamics of malaria transmission with host immunity

第36届中国控制会议

作者： Lili Wei jinliang liu College of Information Engenering Nanjing University of Finance and Economics

ISBN: (纸本)9781538629185

In this paper,the problem of controller design for networked control systems with stochastic cyber-attacks is ***,considering the network-induced delay and cyber-attacks,a mathematical controller model for networked control systems is constructed for ***,based on this model,sufficient conditions for the stability of controller design and gain parameters of desired controller are achieved by using Lyapunov function approach and linear matrix inequality ***,a simulated example is given to show the usefulness of designed controller for networked system with stochastic cyber-attacks.

关键词： Controller design cyber-attacks networked control systems network-induced delay

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International Journal of Biomathematics 2019年第6期12卷 247-270页

作者： Li-Ming Cai Zhaoqing Li jinliang liu School of Mathematics and Statistics Xinyang Normal University Xinyang 464000 P.R.China

In this paper,we investigate a compart mental model for malaria transmission,where the host individuals are distributed according to their immune *** acquired immu nity of malaria is usually booted upon each exposure and gradually declines between the consecutive bouts of the *** is assumed that the recovered host individuals may be reinfected due to the immunity waning over *** existence and stability of equilibria in the system,and the effect of the immunity status on dynamics of the system,are investigated,*** phenomena of multiple endemic equilibria in our model are also *** obtained results show that malaria may keep recurring under the first lower prevalence,however,when malaria is spreading in a population,it may remain at a different endemic level under suitable control strategies.

关键词： Malaria host immunity subthreshold endemic equilibria stability

Fault-distribution-dependent reliable control for time-varying delay system

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控制理论与应用（英文版） 2011年第4期9卷 589-593页

作者： Zhou GU jinliang liu Lilong DU Engang TIAN School of Power Engineering Nanjing Normal University Nanjing Jiangsu 210042 China College of Information Science and Technology Donghua University Shanghai 201620 China Department of Automation North China Electric Power University Beijing 102206 China Institute of Information and Control Engineering Nanjing Normal University Nanjing Jiangsu 210042 China

This paper considers the problem of reliable control for continuous-time systems with interval time-varying delay. By introducing a random matrix, a new practical actuator fault model is established. Using the Lyapunov-Krasovskii approach, a sufficient condition for the existence of reliable controller is expressed by a linear matrix inequality（LMI）. An illustrative example is exploited to show the effectiveness, of the proposed design procedures.

关键词： Reliable control Stochastic actuator fault model Time-delay

New organic scintillation fiber detector for the measurement of intense pulsed fission neutron

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Science China(Technological Sciences) 2012年第1期55卷 43-47页

作者： CHEN Liang OUYANG XiaoPing ZHANG ZhongBing liu jinliang ZHANG XianPeng Northwest Institute of Nuclear Technology Xi＇an 710024 China

To measure the pulsed neutron of a pulsed fission source, an organic scintillation fiber （OSF） detector with separation structure has been designed. The proposed detector employs UV optical fibers as the light guide, and the sensitive region of the detector is composed of a linear array of OSFs, which are individually connected to the optical fibers. The other end of the light guide is coupled to a photomultiplier tube. The key properties of the device including the energy response, time response, neutron sensitivity, and radiation effect of the optical fiber were studied. The detector has a relatively high n/γ sensitivity ratio, which increases as the diameter of the OSF decreases, and ratios greater than 10 could be achieved when the diameter of the OSF is less than 0.3 nun. The sensitivity of the detector to neutrons ranges from 10-14 to 10-20 C cm2/n, and has a response time of 3 ns （FWHM）. The proposed detector is also highly flexible. For instance, the probe can be set close to the source, while the PMT can be placed far away from radiation, allowing easy shielding. Due to these characteristics, pulsed fission neutrons in the vicinity of the source can be accurately measured.

关键词： organic scintillation fiber pulsed neutron detection n/γ sensitivity ratio energy response UV optical fiber

Towards overcoming obstacles of type Ⅱ photodynamic therapy:Endogenous production of light,photosensitizer,and oxygen

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Acta Pharmaceutica Sinica B 2024年第3期14卷 1111-1131页

作者： Lin Yu Zhen liu Wei Xu Kai Jin jinliang liu Xiaohui Zhu Yong Zhang Yihan Wu Department of Chemical and Environmental Engineering Shanghai UniversityShanghai 200433China School of Medicine Shanghai UniversityShanghai 200433China Department of Biomedical Engineering City University of Hong KongHong KongChina

Conventional photodynamic therapy(PDT)approaches face challenges including limited light penetration,low uptake of photosensitizers by tumors,and lack of oxygen in tumor *** promising solution is to internally generate light,photosensitizers,and *** can be accomplished through endogenous production,such as using bioluminescence as an endogenous light source,synthesizing genetically encodable photosensitizers in situ,and modifying cells genetically to express catalase ***,these strategies have been reinforced by the recent rapid advancements in synthetic *** this review,we summarize and discuss the approaches to overcome PDT obstacles by means of endogenous production of excitation light,photosensitizers,and *** envision that as synthetic biology advances,genetically engineered cells could act as precise and targeted“living factories”to produce PDT components,leading to enhanced performance of PDT.

关键词： Photodynamic therapy Cancer Biogenesis Biosynthesis Engineered bacteria Phototherapy Photosensitizers Catalase

Non-conjugated terpolymer acceptors for highly efficient and stable lager-area all-polymer solar cells

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Journal of Energy Chemistry 2022年第8期31卷 631-638,I0017页

作者： Jiabin liu jinliang liu Jiawei Deng Bin Huang Jiyeon Oh Lin Zhao Liang liu Changduk Yang Dong Chen Feiyan Wu Lie Chen College of Chemistry and Chemical Engineering/Institute of Polymers and Energy Chemistry(IPEC) Nanchang UniversityNanchang 330031JiangxiChina Institute of Advanced Scientific Research(iASR)/Key Laboratory of Functional Organic Small Molecules for Ministry of Education Jiangxi Normal UniversityNanchang 330022JiangxiChina Faculty of Materials Metallurgy and Chemistry Jiangxi University of Science and Technology 156 Ke Jia AvenueGanzhou 341000JiangxiChina Department of Energy Engineering School of Energy and Chemical EngineeringPerovtronics Research CenterLow Dimensional Carbon Materials CenterUlsan National Institute of Science and Technology(UNIST)50 UNIST-gilUlju-gunUlsan 44919South Korea

All-polymer solar cells(all-PSCs)have made significant progress recently,but few studies have been conducted to investigate the lab-to-manufacturing translation from the spin-coating method to the printing ***,the random copolymerization method and non-conjugated backbone approach are integrated to manipulate the morphology and photoelectric properties of the active layer for large-area printed all-PSCs.A series of non-conjugated terpolymer acceptors PYSe-TC_(6)T(x)(x=5,10,and 20,refers to the molar ratio of TC_(6)T unit)are developed by covalently introducing non-conjugated unit TC_(6)T into the PYSe host bipolymer by random *** spin-coated PYSe-TC_(6)T(10)-based all-PSC demonstrates the best power conversion efficiency(PCE)of 13.54%,superior to the PYSe-based one(12.45%).More intriguingly,morphological studies reveal that a combination of the random polymerization and non-conjugated backbone strategy can effectively prevent the active layer from overaggregation and improve the film quality during the printing process,thereby minimizing the efficiency and technology gap between spin-coated small-area devices and blade-coated large-area *** directly using the same preparation condition of spin-coating,the blade-coated small-area(0.04 cm^(2))delivers a PCE of 12.83%and the large-area(1.21 cm^(2))device achieves a PCE of 11.96%with a small PCE *** PCE value and PCE loss are one of the most outstanding performances of the bladecoated *** findings reveal that a combination of the non-conjugated flexible backbone with random copolymerization to develop non-conjugated terpolymers is an attractive design concept to smoothly realize the lab-to-manufacturing translation.

关键词： All-polymer Non-conjugated Large area Blade-coating Lab-to-manufacturing translation

Size-induced effect on cathode luminescence spectra of CsI(Na) and CsI(Tl) crystals

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Science China(Physics,Mechanics & Astronomy) 2014年第9期57卷 1684-1688页

作者： liu Fang OUYANG XiaoPing liu Bin liu jinliang CHEN Liang ZHANG ZhongBing ZHANG XueBin FENG Yi Radiation Detection Research Center Northwest Institute of Nuclear Technology School of Nuclear Science and Engineering North China Electric Power University Department of Engineering Physics Tsinghua University School of Materials Science and Engineering Hefei University of Technology

We investigated the cathode luminescence characteristics of CsI(Na)and CsI(Tl)crystals by the spectrum and structure properties at room *** fabricated three different sizes of CsI(Na)and CsI(Tl)crystals and measured their luminescence spectra under cathode *** found that CsI(Na)cathode luminescence peaks appear at 420 and 305 nm,and CsI(Tl)cathode luminescence peaks are 540 and 410 nm,the grain size affects CsI(Na)luminescence significantly,and the Na-related420 nm luminescence intensified relatively when the average grain size reaches^20μm,which becomes weak when the grain size is down to *** the cathode luminescence spectra of CsI(Tl)crystals with different size have no obvious *** explanations for these phenomena are that the different impurities in the same host material CsI lead to different luminescence *** cathode luminescence characteristics indicate the suitability of CsI(Na)and CsI(Tl)crystals to match photomultiplier tube for large area crystal detector development.

关键词： CsI(Na) crystal CsI(Tl) crystal cathode luminescence spectrum

Fault tolerant control for a class of T-S fuzzy systems using two channel event-triggered communication schemes 36

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Fault tolerant control for a class of T-S fuzzy systems usin...