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Durable and Flexible Bio-assembled RGO-BC/BC Bilayer Electrodes for Pressure Sensing

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Advanced Fiber Materials 2021年第2期3卷 128-137页

作者： Fangyi Guan zhiliang Han Mengtian jin Zhuotong Wu Ye Chen Shiyan Chen Huaping Wang State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Materials Science and EngineeringDonghua UniversityShanghai 201620People’s Republic of China

The new generation of electronics tends to be well-performed,facile and environmentally ***,we report a bio-assembled sensitive pressure senor based on reduced graphene oxide-bacterial cellulose/bacterial cellulose(RGO-BC/BC)bilayer films,integrated by bacteria in one *** advantage of this integration is that there is strong nanofiber connection between the conductive RGO-BC and insulative highly compressible porous BC layer,which confers RGO-BC/BC film electrode with good robustness,tailorability,flexibility and *** extra bonding-interface or postprocessing,the RGO-BC/BC bilayer films could be directly assembled into pressure sensing *** from the good reversible compressibility of the BC layer and incorporated bilayer structure,the pressure sensor performs good sensitivity and excellent durability and bending *** facile sensitive capacitive sensor could monitor the human hand or finger motion in real *** sensing array is able to detect the spatial distribution of pressure mounted in the flat plane as well as curved surface of human body,succeeding in the correction of human walking posture for health *** e-skins are potential in wearable electronics,artificial intelligence,soft robots,healthcare etc.

关键词： Durability Bilayer electrodes Bio-assembled Pressure sensing

维普期刊数据库评论

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骨样骨瘤的影像诊断

实用医学影像杂志 2005年第2期6卷 98-99,106页

作者：吴文泽杜新华易长虹宋段金志良袁璐湖北省荆州市中心医院湖北荆州434020 内蒙古鹤峰市第三人民医院

目的评价平片、CT,MRI对骨样骨瘤的诊断价值。方法18例骨样骨瘤均摄平片,其中16例经CT检查,4例行MRI检查;分析骨样骨瘤的平片、CT,MRI影像学表现。结果骨样骨瘤典型表现为瘤巢及周围反应性骨质硬化,且随病变部位不同而有所差异。诊断准... 详细信息

目的评价平片、CT,MRI对骨样骨瘤的诊断价值。方法18例骨样骨瘤均摄平片,其中16例经CT检查,4例行MRI检查;分析骨样骨瘤的平片、CT,MRI影像学表现。结果骨样骨瘤典型表现为瘤巢及周围反应性骨质硬化,且随病变部位不同而有所差异。诊断准确性平片为92.9%,CT为100%,MRI为83.3%。结论平片是诊断骨样骨瘤的基本手段,CT为最可靠方法,MRI需结合平片、CT进行诊断。

关键词：骨样骨瘤平片 CT MRI

SPECTRAL/HP ELEMENT METHOD WITH HIERARCHICAL RECONSTRUCTION FOR SOLVING NONLINEAR HYPERBOLIC CONSERVATION LAWS

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Acta Mathematica Scientia 2009年第6期29卷 1737-1748页

作者： zhiliang Xu Guang Lin Department of Mathematics University of Notre Dame Notre Dame IN 46556 USA Computational Mathematics Group Pacific Northwest National Laboratory 902 Battelle Boulevard Richland WA 99352 USA

The hierarchical reconstruction （HR） [Liu, Shu, Tadmor and Zhang, SINUM ＇07] has been successfully applied to prevent oscillations in solutions computed by finite volume, Runge-Kutta discontinuous Galerkin, spectral volume schemes for solving hyperbolic conservation laws. In this paper, we demonstrate that HR can also be combined with spectral/hp element method for solving hyperbolic conservation laws. An orthogonal spectral basis written in terms of Jacobi polynomials is applied. High computational efficiency is obtained due to such matrix-free algorithm. The formulation is conservative, and essential nomoscillation is enforced by the HR limiter. We show that HR preserves the order of accuracy of the spectral/hp element method for smooth solution problems and generate essentially non-oscillatory solutions profiles for capturing discontinuous solutions without local characteristic decomposition. In addition, we introduce a postprocessing technique to improve HR for limiting high degree numerical solutions.

关键词： spectral/hp element method hierarchical reconstruction discontinuous Galerkin hyperbolic conservation laws

Multi-segment and Multi-ply Overlapping Process of Multi Coupled Activities Based on Valid Information Evolution

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Chinese Journal of Mechanical Engineering 2013年第1期26卷 176-188页

作者： WANG zhiliang WANG Yunxia QIU Shenghai Faculty of Mechanical Engineering Nanjing Institute of Technology

Complex product development will inevitably face the design planning of the multi-coupled activities, and overlapping these activities could potentially reduce product development time, but there is a risk of the additional cost. Although the downstream task information dependence to the upstream task is already considered in the current researches, but the design process overall iteration caused by the information interdependence between activities is hardly discussed; especially the impact on the design process＇ overall iteration from the valid information accumulation process. Secondly, most studies only focus on the single overlapping process of two activities, rarely take multi-segment and multi-ply overlapping process of multi coupled activities into account; especially the inherent link between product development time and cost which originates from the overlapping process of multi coupled activities. For the purpose of solving the above problems, as to the insufficiency of the accumulated valid information in overlapping process, the function of the valid information evolution （VIE） degree is constructed. Stochastic process theory is used to describe the design information exchange and the valid information accumulation in the overlapping segment, and then the planning models of the single overlapping segment are built. On these bases, by analyzing overlapping processes and overlapping features of multi-coupling activities, multi-segment and multi-ply overlapping planning models are built; by sorting overlapping processes and analyzing the construction of these planning models, two conclusions are obtained：（1） As to multi-segment and multi-ply overlapping of multi coupled activities, the total decrement of the task set development time is the sum of the time decrement caused by basic overlapping segments, and minus the sum of the time increment caused by multiple overlapping segments; （2） the total increment of development cost is the sum of the cost increm

关键词： multi coupled activities valid information evolution multi-segment & multi-ply overlapping development time and cost,trade-ofl iteration

Health promoting activities and corresponding mechanism of(–)-epicatechin-3-gallate

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Food Science and Human Wellness 2022年第3期11卷 568-578页

作者： zhiliang Li Changchun Feng Hongjin Dong Weibin jin Wenying Zhang Jianfeng Zhan Shuzhen Wang College of Life Science Huanggang Normal UniversityHubei Key Laboratory of Economic Forest Germplasm Improvement and Resources Comprehensive UtilizationHubei Collaborative Innovation Center for the Characteristic Resources Exploitation of Dabie MountainsHubei Zhongke Research Institute of Industrial TechnologyHuanggang 438000China College of Agriculture Yangtze UniversityJingzhou 434000China

(–)-Epicatechin-3-gallate(ECG),a bioactive polyphenolic compound,has contributed a lot to the health benefits of green *** attention has been focused on(–)-epigallocatechin-3-gallate(EGCG),but limited research has been performed towards *** EGCG,ECG also possesses various pharmacological and physiological properties,such as mediation of antioxidant activities,anti-inflammation response,regulation of cell proliferation and apoptosis,as well as anticancer properties during angiogenesis,invasion and metastasis *** ECG has various molecular targets within the cells,including CYP enzymes,phaseⅡdetoxification and antioxidant enzymes,as well as pro-inflammatory *** antineoplastic mechanism contains inhibition of phase 1 CYP enzymes,induction of phaseⅡdetoxification and antioxidant enzymes,high anti-inflammatory efficacy,arrest of cell cycle progression,regulation of apoptosis,as well as mediation of metastasis *** particular,the gallate moiety of ECG is critical for mediating inhibitory effects towards cancer *** regulation of intracellular signaling pathways,ECG also inhibits RNase A and matrix metalloproteinase enzymatic activity via chelating metals(copper and zinc)in cancer *** review has summarized recent studies on pharmacological properties of ECG,and discussed corresponding mechanism on modulation of cellular signaling events by ECG,hoping to broaden its multiple usage.

关键词： (-)-Epicatechin-3-gallate Polyphenolic compounds Pharmacological properties Anticarcinogenic agent Natural antioxidants Antimicrobial properties

Insight into coupled Ni-Co dual-metal atom catalysts for efficient synergistic electrochemical CO_(2)reduction

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Journal of Energy Chemistry 2023年第12期87卷 509-517,I0013页

作者： Qingchun Zhang Di Liu Yaping Zhang zhiliang Guo Minpeng Chen Yuyun Chen Bo jin Yingze Song Hui Pan State Key Laboratory of Environment-Friendly Energy Materials School of Materials and ChemistryTianfu Institute of Research and InnovationSouthwest University of Science and TechnologyMianyang 621010SichuanChina Institute of Applied Physics and Materials Engineering University of MacaoMacao 999078China School of Chemistry and Chemical Engineering Southeast UniversityNanjing 211189JiangsuChina

The development of highly active,selective,and stable electrocatalysts can facilitate the effective implementation of electrocatalytic CO_(2)conversion into fuels or chemicals for mitigating the energy crisis and climate ***,it is necessary to achieve the goal through reasonable material design based on the actuality of the operational active site at the molecular *** by the stimulating synergistic effect of coupled heteronuclear metal atoms,a novel Ni-Co atomic pairs configuration(denoted as NiN_(3)?CoN_(3)-NC)active site was theoretically screened out for improving electrochemical CO_(2)reduction reaction(CO_(2)RR).The structure of NiN_(3)?CoN_(3)-NC was finely regulated by adjusting Zn content in the precursors Zn/Co/Ni-zeolite imidazolate frameworks(Zn/Co/Ni-ZIFs)and pyrolysis *** structural features of NiN_(3)?CoN_(3)-NC were systematically confirmed by aberration-corrected HAADF-STEM coupled with 3D atom-overlapping Gaussian-function fitting mapping,XAFS,and *** results of theoretical calculations reveal that the synergistic effect of Ni-Co atomic pairs can effectively promote the*COOH intermediate formation and thus the overall CO_(2)RR kinetic was improved,and also restrained the competitive hydrogen evolution *** to the attributes of Ni-Co atomic pairs configuration,the developed NiN_(3)?CoN_(3)-NC with superior catalytic activity,selectivity,and durability,with a high turnover frequency of 2265 h^(-1)at-1.1 V(***)and maximum Faradaic efficiency of 97.7%for CO *** work demonstrates the great potential of DACs as highly efficient catalysts for CO_(2)RR,provides a useful strategy to design heteronuclear DACs,exploits the synergistic effect of multiple metal sites to facilitate complex CO_(2)RR catalytic reactions,and inspires more efforts to develop the potential of DACs in various fields.

关键词： Coupled dual-metal atom catalysts CO_(2)reduction reaction Electrocatalysts Density functional theory

Synthesis and characterization of BaMgAl_(10)O_(17):Eu～(2+)phosphor prepared by homogeneous precipitation

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Particuology 2010年第5期8卷 473-476页

作者： ZhanhuiZhang jingang Feng zhiliang Huang School of Materials Science and Engineering Wuhan Institute of Technolo~ No. 693 Xiongchu Street Wuhan Hubei 430073 China

A homogeneous precipitation process based on urea hydrolysis reaction was exploited to synthesize BaMgAl10O17：Eu2＋ phosphor. The process parameters, such as the dosage of urea, the calcination tem- peratures and the concentration of Eu2＋, were refined in light of the characterization of the products. The experimental results revealed that pure and well-crystallized BaMgAl10O17：Eu2＋ phosphor could be obtained at 1250℃, a much lower temperature than that for traditional solid-state reaction. The as-prepared phosphor particles were small in grain size, regular in morphology, and uniform in size distribution. Because of the high homogeneity of the process, the as-prepared phosphor exhibited stronger emission intensity and higher thermal stability than the sample prepared by solid-state reaction at 1600℃.

关键词： BaMgAl10O17:Eu2+ PhosphorHomogeneous precipitationLuminescent properties

Revisiting solar hydrogen production through photovoltaicelectrocatalytic and photoelectrochemical water splitting

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Frontiers in Energy 2021年第3期15卷 596-599页

作者： zhiliang WANG Yuang GU Lianzhou WANG Nanomaterials Centre School of Chemical Engineering and Australian Institute for Bioengineering and NanotechnologyThe University of QueenslandSt LuciaQLD 4072Australia

Photoelectrochemical(PEC)water splitting is regarded as a promising way for solar hydrogen production,while the fast development of photovoltaic-electrolysis(PV-EC)has pushed PEC research into an embarrassed *** this paper,a comparison of PEC and PV-EC in terms of efficiency,cost,and stability is conducted and briefly *** is suggested that the PEC should target on high solar-to-hydrogen efficiency based on cheap semiconductors in order to maintain its role in the technological race of sustainable hydrogen production.

关键词： hydrogen production photovoltaic electrocatalysis photoelectrocatalysis water splitting

On the origin of intrinsic randomness of Rayleigh-Benard turbulence

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Science China(Physics,Mechanics & Astronomy) 2017年第1期60卷 42-54页

作者： zhiliang Lin LiPo Wang ShiJun Liao School of Naval Architecture Ocean and Civil Engineering Shanghai Jiaotong University Shanghai 200240 China UM-SJTU Joint Institute Shanghai Jiaotong University Shanghai 200240 China Ministry-of-Education Key Laboratory in Scientific and Engineering Computing Shanghai 200240 China

It is of broad interest to understand how the evolution of non-equilibrium systems can be triggered and the role played by external perturbations. A famous example is the origin of randomness in the laminar-turbulence transition, which is raised in the pipe flow experiment by Reynolds as a century old unresolved problem. Although there exist different hypotheses, it is widely believed that the randomness is "intrinsic", which, however, remains as an open question to be verified. Simulating the modeled RayleighB′enard convection system by means of the so-called clean numerical simulation(CNS) with negligible numerical noises that are smaller even than thermal fluctuation, we verify that turbulence can be self-excited from the inherent thermal fluctuation without any external disturbances, i.e. out of nothing. This reveals a relationship between microscopic physical uncertainty and macroscopic randomness. It is found that in physics the system nonlinearity functions as a channel for randomness information,and energy as well, to transport microscopic uncertainty toward large scales. Such scenario can generally be helpful to understand the various relevant phenomena. In methodology, compared with direct numerical simulation(DNS), CNS opens a new direction to investigate turbulent flows with largely improved accuracy and reliability.

关键词： turbulence chaos thermal fluctuation clean numerical simulation