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Vertically stacked skin-like active-matrix display with ultrahigh aperture ratio

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Light(Science & Applications) 2024年第9期13卷 1828-1840页

作者： Juntong Li Yanping ni Xiaoli zhao Bin Wang Chuang Xue Zetong Bi Cong Zhang Yongjun dong Yanhong Tong Qingxin Tang Yichun Liu Key Laboratory of UV-Emitting Materials and Technology of Ministry of Education Northeast Normal UniversityChangchunChina

Vertically stacked all-organic active-matrix organic light-emitting diodes are promising candidates for high-quality skinlike displays due to their high aperture ratio,extreme mechanical flexibility,and low-temperature processing ***,these displays suffer from process interferences when interconnecting functional layers made of all-organic *** overcome this challenge,we present an innovative integration strategy called“discrete preparationmultilayer lamination”based on microelectronic *** this strategy,each functional layer was prepared separately on different substrates to avoid chemical and physical damage caused by process interferences.A single interconnect layer was introduced between each vertically stacked functional layer to ensure mechanical compatibility and *** to the previously reported layer-by-layer preparation method,the proposed method eliminates the need for tedious protection via barrier and pixel-defining layer processing ***,based on active-matrix display,this strategy allows multiple pixels to collectively display a pattern of“1”with an aperture ratio of 83%.Moreover,the average mobility of full-photolithographic organic thin-film transistors was 1.04 cm2 V−1 s−1,ensuring stable and uniform *** strategy forms the basis for the construction of vertically stacked activematrix displays,which should facilitate the commercial development of skin-like displays in wearable electronics.

关键词： interconnection matrix Vertical

Fault Accommodation for a Class of Nonlinear Uncertain Systems With Event-Triggered Input

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IEEE/CAA Journal of Automatica Sinica 2022年第2期9卷 235-245页

作者： dong zhao Marios M.Polycarpou IEEE KIOS Research and Innovation Center of Excellence and the Department of Electrical and Computer EngineeringUniversity of CyprusNicosia 1678Cyprus

The event-triggered fault accommodation problem for a class of nonlinear uncertain systems is considered in this *** control signal transmission from the controller to the system is determined by an event-triggering scheme with relative and constant triggering *** the event-induced control input error and system fault threat,a novel eventtriggered active fault accommodation scheme is designed,which consists of an event-triggered nominal controller for the time period before detecting the occurrence of faults and an adaptive approximation based event-triggered fault accommodation scheme for handling the unknown faults after detecting the occurrence of *** closed-loop stability and inter-event time of the proposed fault accommodation scheme are rigorously *** cases for the fault accommodation design under constant triggering threshold are also *** example is employed to illustrate the effectiveness of the proposed fault accommodation scheme.

关键词： Adaptive control event-triggered control fault accommodation neural networks nonlinear systems

Bright Red Organic Electroluminescent Devices Based on a Soluble Rare Earth Complex Eu(TTA)_3 Phen

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Chemical Research in Chinese Universities 1998年第3期14卷 28-31页

作者： LI Bin MA dong ge ZHANG Hong jie zhao Xiao jiang ni Jia zuan FU Chun yan Laboratory of Rare Earth Chemistry and Physics Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun130022 Songliao River Valley Water Environmenta l Research Institute Changchun130021

An Electroluminescent device with PVK film doped with Eu(TTA) 3 Phen and PBD was fabricated. The device structure of glass substrate/indium tin oxide/PPV/PVK∶ Eu(TTA) 3 Phen∶PBD/Alq 3/Al was employed. A sharply... 详细信息

关键词： Electroluminescence Europium complex Red emission Doping

Joint optimization of user association and resource allocation in cache-enabled terrestrial-satellite integrating network

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Science China(Information Sciences) 2021年第8期64卷 90-103页

作者： Shuang ni Junyu LIU Min SHENG Jiandong LI Xiaona zhao State Key Laboratory of Integrated Service Networks Xidian University

Although low earth orbit(LEO) satellites can provide high-capacity backhaul to serve the terrestrial network, the performance of terrestrial-satellite communication systems is critically influenced by the coupling of user association and resource allocation in this integrating system, where user association includes small-cell base station(SBS)-user association and SBS-satellite association. In this work, we consider a cache-enabled terrestrial-satellite integrating network, in which LEO satellites provide backhaul for cacheenabled SBSs to serve ground users. Targeting at maximizing the downlink sum rate of the system and the number of accessed ground users, we formulate an optimization problem where user association and resource allocation of both terrestrial and satellite networks are joint optimized. Owing to the coupling relationship and integer programming nature of this optimization problem, we use Lagrangian relaxation to decouple and decompose it into two subproblems. We propose a user-division matching(UDM) algorithm by dividing all users into multiple user groups, which skillfully solves the first subproblem with multi-objectives. Afterward,to depict the nature of multi-connectivity sufficiently, the second subproblem is converted into a many-toone matching game and solved by a modified Gale-Shapely(MGS) algorithm, which is highly efficient for different satellite constellations. Simulation results demonstrate the proposed algorithms can significantly improve the downlink sum rate of the system by 28.5–120.7 compared to the benchmark algorithms in the typical settings and balance the tradeoff between the downlink sum rate of the system and the number of accessed ground users. Moreover, it also shows that <1% system performance loss can be obtained by the proposed method compared to the optimal solution.

关键词： terrestrial-satellite integrating network content caching user association resource allocation satellite backhaul

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Journal of Hydrodynamics 1993年第3期5卷 16-24页

作者： zhao, Yaonan dong, Shufang Tianjin Univ Tianjin China

In engineering practical models designed by the gravity criterion, details relating to turbulent fine structure are difficult to keep in similar. In this paper, similarity relations of the turbulent structure and its influences on turbulent time-mean quantities are discussed in the case of model flows satisfied the gravity similarity law. The fluctuating pressure acting on the floor within free hydraulic jumps were measured for three scale models and compared with the theoretical results.

关键词： Hydraulic models Turbulent flow

Recent Research Progress of Paper-Based Supercapacitors Based on Cellulose

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Energy & Environmental Materials 2024年第3期7卷 345-373页

作者： Chuanyin Xiong Tianxu Wang Jing Han zhao Zhang Yonghao ni College of Bioresources Chemical&Materials Engineering Shaanxi University of Science and TechnologyXi'an 710021China School of Materials Science and Engineering Tianjin Polytechnic UniversityTianjin 300387China Department of Chemical and Biomedical Engineering The University of MaineOronoMaine 04469USA University of New Brunswick Limerick Pulp&Paper CtrFredericton New Brunswick E3B 5A3Canada

In recent years,paper-based functional materials have received extensive attention in the field of energy storage due to their advantages of rich and adjustable porous network structure and good *** an important energy storage device,paper-based supercapacitors have important application prospects in many fields and have also received extensive attention from researchers in recent *** present,researchers have modified and regulated paper-based materials by different means such as structural design and material composition to enhance their electrochemical storage *** development of paper-based supercapacitors provides an important direction for the development of green and sustainable ***,it is of great significance to summarize the relevant work of paper-based supercapacitors for their rapid development and *** this review,the recent research progress of paper-based supercapacitors based on cellulose was summarized in terms of various cellulose-based composites,preparation skills,and electrochemical ***,some opinions on the problems in the development of this field and the future development trend were *** is hoped that this review can provide valuable references and ideas for the rapid development of paper-based energy storage devices.

关键词： cellulose electrochemical performance flexibility paper-based supercapacitor porous

Robust current and speed control of a permanent magnet synchronous motor using SMC and ADRC

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Control Theory and Technology 2019年第2期17卷 190-199页

作者： Yang zhao Lili dong Department of Electrical Engineering and Computer Science Cleveland State UniversityClevelandOH 44115U.S.A.

A second-order ordinary differential equation model is originally constructed for the phase q current system of a permanent magnet synchronous motor(PMSM).The phase q current model contains the effect of a counter electromotive force(CEMF),which introduces nonlinearity to the *** order to compensate the nonlinearity and system uncertainties,a traditional sliding mode controller(SMC)combined with a low-pass filter(also known as a modified SMC)is designed on the phase q current *** low-pass filter overcomes chattering effects in control efforts,and hence improves the performance of the *** phase q current control system is proved to be stable using Lyapunov *** addition,an alternative activedisturbance rejection controller(ADRC)with a reduced-order extended state observer(ESO)is applied to control the speed output of *** SMC and ADRC are simulated on the PMSM *** simulation results demonstrate the effectiveness of these two controllers in successfully driving the current and speed outputs to desired values despite load disturbances and system uncertainties.

关键词： PMSM SMC ADRC robustness external disturbance system uncertainty

Longitudinal assessment of peripheral organ metabolism and the gut microbiota in an APP/PS1 transgenic mouse model of Alzheimer’s disease

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Neural Regeneration Research 2025年第10期20卷 2982-2997页

作者： Hongli Li Jianhua Huang Di zhao Lemei Zhu Zheyu Zhang Min Yi Weijun Peng Department of Integrated Traditional Chinese&Western Medicine The Second Xiangya HospitalCentral South UniversityChangshaHunan ProvinceChina National Clinical Research Center for Metabolic Diseases ChangshaHunan ProvinceChina Hunan Academy of Chinese Medicine ChangshaHunan ProvinceChina Academician Workstation Changsha Medical UniversityChangshaHunan ProvinceChina

Alzheimer’s disease not only affects the brain,but also induces metabolic dysfunction in peripheral organs and alters the gut *** aim of this study was to investigate systemic changes that occur in Alzheimer’s disease,in particular the association between changes in peripheral organ metabolism,changes in gut microbial composition,and Alzheimer’s disease *** do this,we analyzed peripheral organ metabolism and the gut microbiota in amyloid precursor protein-presenilin 1(APP/PS1)transgenic and control mice at 3,6,9,and 12 months of ***-month-old APP/PS1 mice exhibited cognitive impairment,Alzheimer’s disease-related brain changes,distinctive metabolic disturbances in peripheral organs and fecal samples(as detected by untargeted metabolomics sequencing),and substantial changes in gut microbial composition compared with younger APP/PS1 ***,a strong correlation emerged between the gut microbiota and kidney metabolism in APP/PS1 *** findings suggest that alterations in peripheral organ metabolism and the gut microbiota are closely related to Alzheimer’s disease development,indicating potential new directions for therapeutic strategies.

关键词： Alzheimer’s disease APP/PS1 mice brain-kidney axis gut microbiota heart-brain axis liver-brain axis lung-brain axis microbiota-gut-brain axis peripheral organ metabolism spleen-brain axis

Polarization visualization for low-irradiance regions by perceptually uniform color space

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Defence Technology（防务技术） 2021年第2期17卷 505-511页

作者： Feng zhao Yue dong Jian-lei Zhang Xi’an University of Posts and Telecommunications School of Electronic EngineeringXi’an710121China

Currently,polarization visualization strategies are accomplished by mapping polarization information into a perceptually uniform color appearance model ***,the deviation of the CAM02-UCS space from the lightness prediction results in an inaccurate match between the polarization information and the perceptual *** this paper,we propose a novel polarization visualization strategy based on the perceptual uniform space *** polarization visualization be completed by placing the polarization information into the lightness Jz,colorfulness Cz and hue angle hz channels of the Jzazbz *** experimental results show that the proposed method can significantly improve the lightness of the low irradiance and high polarization region,hence more polarization information can be sensed by human visual system.

关键词： Polarization visualization Perceptually uniform space Lightness prediction Low irradiance