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Combinatorial optimization of perovskite-based ferroelectric ceramics for energy storage applications

Journal of Advanced Ceramics 2024年第7期13卷 877-910页

作者： Suwei Dai Mengyang li xiaowen Wu Yunyi Wu Xiang li Yanan Hao Bingcheng Luo Engineering Research Center of Ministry of Education for Geological Carbon Storage and Low Carbon Utilization of Resources Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid WastesNational Laboratory of Mineral MaterialsSchool of Materials Science and TechnologyChina University of Geosciences BeijingBeijing 100083China College of Science China Agricultural UniversityBeijing 100083China Research Center for Comprehensive Energy Technology CTG Science and Technology Research InstituteBeijing 100038China School of Energy and Power Engineering Beihang UniversityBeijing 100191China State Key Laboratory of Information Photonics and Optical Communications&School of Science Beijing University of Posts and TelecommunicationsBeijing 100876China

With the increasing impacts of climate change and resource depletion,dielectric capacitors,with their exceptional stability,fast charging and discharging rates,and ability to operate under more extreme conditions,are emerging as promising high-demand candidates for high-performance energy storage devices,distinguishing them from traditional electrochemical capacitors and ***,due to the shortcomings of various dielectric ceramics(e.g.,paraelectrics(PEs),ferroelectrics(FEs),and antiferroelectrics(AFEs)),their low polarizability,low breakdown strength(BDS),and large hysteresis loss limit their standalone use in the advancement of energy storage ***,synthesizing novel perovskite-based materials that exhibit high energy density,high energy efficiency,and low loss is crucial for achieving superior energy storage *** this review,we outline the recent development of perovskitebased ferroelectric energy storage ceramics from the perspective of combinatorial optimization for tailoring ferroelectric hysteresis loops and comprehensively discuss the properties arising from the different combinations of *** also provide future guidelines in this ***,the combinatorial optimization strategy in this review will open up a practical route toward the application of new high-performance ferroelectric energy storage devices.

关键词： perovskite hysteresis loop relaxor ferroelectric(RFE) paraelectric(PE) antiferroelectric(AFE) energy storage

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Nicotinamide adenine dinucleotide treatment confers resistance to neonatal ischemia and hypoxia:effects on neurobehavioral phenotypes

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Neural Regeneration Research 2024年第12期19卷 2760-2772页

作者： xiaowen Xu Xinxin Wang li Zhang Yiming Jin lili li Meifang Jin lianyong li Hong Ni Division of Brain Science Institute of Pediatric ResearchChildren’s Hospital of Soochow UniversitySuzhouJiangsu ProvinceChina Department of Pediatric Orthopedics Shengjing Hospital of China Medical UniversityShenyangLiaoning ProvinceChina

Neonatal hypoxic-ischemic brain injury is the main cause of hypoxic-ischemic encephalopathy and cerebral ***,there are few effective clinical treatments for neonatal hypoxic-ischemic brain ***,we investigated the neuroprotective and molecular mechanisms of exogenous nicotinamide adenine dinucleotide,which can protect against hypoxic injury in adulthood,in a mouse model of neonatal hypoxic-ischemic brain *** this study,nicotinamide adenine dinucleotide(5 mg/kg)was intraperitoneally administered 30 minutes befo re surgery and every 24 hours *** results showed that nicotinamide adenine dinucleotide treatment improved body weight,brain structure,adenosine triphosphate levels,oxidative damage,neurobehavioral test outcomes,and seizure threshold in experimental *** mass tag proteomics revealed that numerous proteins were altered after nicotinamide adenine dinucleotide treatment in hypoxic-ischemic brain injury *** reaction monitoring and western blotting confirmed changes in the expression levels of proteins including serine(or cysteine)peptidase inhibitor,clade A,member 3N,fibronectin 1,5'-nucleotidase,cytosolic IA,microtubule associated protein 2,and complexin *** analyses showed that nicotinamide adenine dinucleotide ameliorated hypoxic-ischemic injury through inflammation-related signaling pathways(e.g.,nuclear factor-kappa B,mitogen-activated protein kinase,and phosphatidylinositol 3 kinase/protein kinase B).These findings suggest that nicotinamide adenine dinucleotide treatment can improve neurobehavioral phenotypes in hypoxic-ischemic brain injury mice through inflammation-related pathways.

关键词： brain injury cerebral palsy hypoxia hypoxic-ischemic brain injury inflammation neuroprotection nicotinamide adenine dinucleotide neonate nicotinamide adenine dinucleotide proteomics

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Detrital Zircon of 4100 Ma in Quartzite in Burang,Tibet

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Acta Geologica Sinica(English Edition) 2006年第6期80卷 954-956页

作者： DUO Ji WEN Chunqi FAN Xiaoping GUO Jianci NI Zhiyao li xiaowen SHI Yuruo WEN Quan Bureau of Geology and Mineral Resources of Tibet Autonomous Region Lhasa Tibet 850000 Chengdu University of Technology Chengdu Sichuan 610059 Beijing SHRIMP Center Beijing 100037

A detrital zircon aged 4.1 Ga is discovered by the SHRIMP U-Pb method in a quartzite in Burang County, western Tibet. This is presently the oldest single-grain detrital zircon in China. The Th-U ratios of the two testing points of the 〉4.0 Ga zircon are between 0.76 and 0.86, indicating their magmatic origin. This discovery has offered an important age for investigating the geological evolution of the Qinghai-Tibet Plateau.

关键词： SHRIMP detrital zircon 4.1 Ga Tibet

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“互联网+医养”综合管理系统设计与应用

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中国数字医学 2024年第4期19卷 116-120页

作者：董建伟徐鹏马春燕李晓文吕永涛宁夏回族自治区人民医院信息中心银川750002 宁夏回族自治区人民医院老年医养照护中心银川750002

目的:巩固宁夏回族自治区(以下简称宁夏)“互联网+医疗健康”示范区建设成果,提升医养结合服务能力。方法:结合宁夏本地医养服务现状,应用大数据和互联网技术,构建基于互联网医疗的医养综合服务信息化体系,搭建适用于不同层级医养结合... 详细信息

目的:巩固宁夏回族自治区(以下简称宁夏)“互联网+医疗健康”示范区建设成果,提升医养结合服务能力。方法:结合宁夏本地医养服务现状,应用大数据和互联网技术,构建基于互联网医疗的医养综合服务信息化体系,搭建适用于不同层级医养结合机构的医养协同综合服务信息化平台。结果:面向医养结合机构、社会养老机构、社区居家养老人群提供多方位联合体机制,形成线上线下一体化的全流程医养服务及管理模式,可为老年人提供全方位多层次连续性的医疗、养老等服务。结论:“互联网+医养”综合管理系统实现了医养融合互联互通全流程管理,是“互联网+医养”融合服务模式的积极探索。

关键词：医养结合互联网+医疗健康老龄化

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Isolation and oral immunogenicity assessment of porcine epidemic diarrhea virus NH-TA2020 strain:One of the predominant strains circulating in China from 2017 to 2021

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Virologica Sinica 2022年第5期37卷 646-655页

作者： xiaowen li Yang li Jiapei Huang Yali Yao Wenying Zhao Yunjing Zhang Jie Qing Jing Ren Zhong Yan Zewei Wang Xiaofang Hu Duli Kang Hongqiang liu Zhichun Yan New Hope liuhe Co. Ltd.Chengdu610041China National Research Center for Veterinary Medicine Luoyang471000China Shandong New Hope liuhe Agriculture and Animal Husbandry Technology Co. Ltd.(NHLH Academy of Swine Research)Dezhou253034China Swine Health Data and Intelligent Monitoring Project Laboratory Dezhou UniversityDezhou253011China Pulike Biological Engineering Inc. Luoyang471000China

Porcine epidemic diarrhea(PED)caused by porcine epidemic diarrhea virus(PEDV)is one of the most devastating diseases in the global pig industry due to its high mortality rate in *** vaccines can effectively enhance the gut-mammary gland-secretory IgA axis to boost lactogenic immunity and passive protection of nursing piglets against PEDV *** 2017 to 2021,we collected 882 diarrhea samples from 303 farms in China to investigate the epidemiology of *** result showed that about 52.15%(158/303)of the farms were positive for PEDV with an overall detection rate of 63.95%(564/882)of the *** S1 fragments of S gene from 104 strains were sequenced for the phylogenetic analysis.A total of 71 PEDV strains(68.27%)sequenced in this study were clustered into the predominant G2c subgroup,while the newly-defined G2d strains(9.62%)were identified in three provinces of *** NH-TA2020 strain of G2c subgroup was isolated and cultured,and its infection to piglets caused watery diarrhea within 24 h,indicating its strong *** administration of NH-TA2020 strain to pregnant gilts stimulated high levels of IgA antibody in *** piglets fed by the gilts above were challenged with NH-TA2020 strain or CH-HeB-RY-2020 strain from G2d subgroup,and the clinical symptoms and virus shedding were significantly reduced compared to the mock *** findings suggest that G2c subgroup is the predominant branch circulating in China from 2017 to *** administration of NH-TA2020 enhances maternal IgA and lactogenic immune responses,which confer protection against the homologous and emerging G2d PEDV strains challenges in neonates.

关键词： Porcine epidemic diarrhea virus(PEDV) Molecular epidemiological investigation Virus isolation Lactogenic immune IgA

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Automated retinal layer segmentation in optical coherence tomography images with intraretinal fluid

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Journal of Innovative Optical Health Sciences 2022年第3期15卷 81-91页

作者： Luquan Wang xiaowen li Yong Chen Dingan Han Mingyi Wang Yaguang Zeng Junping Zhong Xuehua Wang Yanhong Ji Honglian Xiong Xunbin Wei School of Physics and Optoelectronic Engineering Foshan University FoshanGuangdong 528000P.R.China School of Mechatronic Engineering and Automation Foshan University FoshanGuangdong 528000P.R.China Guangdong-Hong Kong-Macao Intelligent Micro-Nano Optoelectronic Technology Joint Laboratory Foshan University FoshanGuangdong 528000P.R.China Guangdong Provincial Key Laboratory of Animal Molecular Design and Precise Breeding Foshan Guangdong 528000P.R.China Department of Biomedical Engineering Peking University Beijing 100081P.R.China Key Laboratory of Carcinogenesis and Translational Research Cancer Hospital and Institute Peking University Beijing 100142P.R.China School of Biomedical Engineering Shanghai Jiao Tong University Shanghai 200030 P.R.China Laboratory of Quantum Engineering and Quantum Material School of Physics and Telecommunication Engineering South China Normal University Guangzhou Guangdong 510006P.R.China

We propose a novel retinal layer segmentation method to accurately segment 10 retinal layers in optical coherence tomography(OCT)images with intraretinal *** method used a fan filter to enhance the linear information pertaining to retinal boundaries in an OCT image by reducing the effect of vessel shadows and fluid regions.A random forest classifier was employed to predict the location of the *** novel methods of boundary redirection(SR)and similarity correction(SC)were combined to carry out boundary tracking and thereby accurately locate retinal layer *** were performed on healthy controls and subjects with diabetic macular edema(DME).The proposed method required an average of 415 s for healthy controls and of 482 s for subjects with DME and achieved high accuracy for both groups of *** proposed method requires a shorter running time than previous methods and also provides high ***,the proposed method may be a better choice for small training datasets.

关键词： Retinal layer segmentation optical coherence tomography fluid optical coherence tomography scan random forests

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Extension of Switching Costs Antecedents Based on Customers＇ Social Ties

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China Communications 2014年第1期11卷 152-163页

作者： SHI Wenhua JI Chen li xiaowen TANG lingshu LV Tingjie School of Economics and Management Beijing University of Posts and Telecommunications Beijing 100876 China China Mobile Communications Corporation Beijing 100032 China

The effects of customers' social ties on switching costs have recently attracted researchers' *** study formally included customers' social ties as a new antecedent to supplement those elucidated by Burnham in *** empirical research,this study successfully verified the reliability and validity of items created to measure social ties,and it demonstrated the facilitating effects of social ties as an antecedent on customers' procedural and relational switching ***,the study lists managerial implications aimed at retaining customers through knowledge of this added antecedent.

关键词： Switching costs antecedent social ties

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Analysis of a Residual Model for the Decomposition of Polarimetric SAR Data

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Advances in Remote Sensing 2013年第2期2卷 120-126页

作者： Xiaojing Bai Binbin He xiaowen li School of Resources and Environment University of Electronic Science and Technology of China Chengdu China

Accurate estimation of the double-bounce scattering fd and surface scattering fs coefficients with Freeman-Durden decomposition is still difficult. This difficulty arises because overestimation of the volume scattering energy contribution Pv leads to negative values for fd and fs. A generalized residual model is introduced to estimate fd and fs. The relationship between Pv and the residual model is analyzed. Eigenvalues computed from the residual model must be positive to explain physical scattering mechanisms. The authors employ a new volumetric scattering model to minimize Pv as calculated by several decomposition methods. It is concluded that decreasing Pv can help reduce negative energy. This conclusion is validated using actual polarimetric SAR data.

关键词： Freeman-Durden Decomposition Polarimetric SAR Residual Model Negative Scattering Energy

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Mechanical Behavior of a Glass-fiber Reinforced Composite to Steel Joint for Ships

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Journal of Marine Science and Application 2015年第1期14卷 39-45页

作者： xiaowen li Ping li Zhuang lin Dongmei Yang College of Shipbuilding Engineering Harbin Engineering University Harbin 150001 China

The use of a glass-fiber reinforced composite in marine structures is becoming more common, particularly due to the potential weight savings. The mechanical response of the joint between a glass-fiber reinforced polymer （GRP） superstructure and a steel hull formed is examined and subsequently modified to improve performance through a combined program of modeling and testing. A finite-element model is developed to predict the response of the joint. The model takes into account the contact at the interface between different materials, progressive damage, large deformation theory, and a non-linear stress-strain relationship. To predict the progressive failure, the analysis combines Hashin failure criteria and maximum stress failure criteria. The results show stress response has a great influence on the strength and bearing of the joint. The Balsawood-steel interface is proved to be critical to the mechanical behavior of the joint. Good agreement between experimental results and numerical predictions is observed.

关键词： glass-fiber reinforced composite marine structure mechanical behavior steel joint finite-element model progressivefailure Hashin failure criteria

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Fixation Property of Copper Triazole Wood Preservatives

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Chinese Forestry Science and Technology 2009年第1期8卷 15-23页

作者： li Zhiqiang li xiaowen ZHANG Ying JIANG MingUang Research Institute of Wood Industry Chinese Academy of ForestryBeijing 100091P.R.China

According to AWPA E11-2006 standard,copper fixation rates of several copper-based formulations,such as ammoniacal copper,amine copper,and ammoniacal-ethanolamine copper,as well as alkaline copper quaternary(ACQ),were tested and compared in this *** the fixation rates of tebuconazole(TEB) and propiconazole(PPZ) in several formulations,such as copper azole,emulsified type and solvent type,were also *** determination of copper content in the leachate was analyzed by atomic absorption spectrom...

关键词： copper triazole ACQ tebuconazole propiconazole fixation wood preservative

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