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Insights into the role of oxygen-containing functional groups on carbon surface in water–electricity generation

Nano Research 2024年第7期17卷 6645-6653页

作者： Wan xue Zongbin zh.o Honghui bi Bolun zh.ng Xuzh.n Wang Jieshan Qiu State Key Laboratory of Fine Chemicals Liaoning Key Laboratory for Energy Materials and Chemical EngineeringSchool of Chemical EngineeringDalian University of TechnologyDalian 116024China State Key Laboratory of Fine Chemicals Liaoning Key Laboratory for Energy Materials and Chemical EngineeringSchool of ChemistryDalian University of TechnologyDalian 116024China State Key Laboratory of Chemical Resource Engineering College of Chemical EngineeringBeijing University of Chemical TechnologyBeijing 100029China

A deep understanding of the electricity generation mechanism from the interaction between water molecules and carbon material surfaces is attractive for next-generation water-based energy conversion and storage ***,an asymmetric generator was assembled based on functionalized carbon nanotubes films to investigate the relative contribution from various oxygen functional groups on carbon surface to the water-electrical *** and calculations demonstrate that the electricity mainly originates from the water molecule adsorption by carboxyl groups and dissociation of functional groups on carbon surface,which leads to the formation of electrical double layers at *** device allows the electricity generation with a variety of water sources,such as deionized water,tap water,as well as *** particular,the generator based on carboxyl carbon nanotubes can induce a voltage of over 200 mV spontaneously in natural seawater with the power density of about 0.11 mW·g^(−1).High voltages can be achieved easily through the series-connection strategy to power electronic products such as a liquid crystal *** work reveals the dominant role of carboxyl groups in carbon-based water–electricity conversion and is expected to offer inspiration for the preparation of carbon materials with high electrical performance.

关键词： electricity generation water adsorption dissociation carboxyl groups carbon nanotubes

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Computational Experiments for Complex Social Systems:Integrated Design of Experiment System

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IEEE/CAA Journal of Automatica Sinica 2024年第5期11卷 1175-1189页

作者： Xiao xue Xiangning Yu Deyu zh.u Xiao Wang Chongke bi Shufang Wang Fei-Yue Wang College of Intelligence and Computing Tianjin UniversityTianjin 300350China School of Software Shandong UniversityJinan 250101China School of Artificial Intelligence Anhui UniversityHefei 230601China School of Geographic and Environmental Sciences Tianjin Normal UniversityTianjin 300387China Institute of Automation Chinese Academy of Sciences Beijing 100190China

Powered by advanced information industry and intelligent technology,more and more complex systems are exhibiting characteristics of the cyber-physical-social systems(CPSS).And human factors have become crucial in the operations of complex social *** mechanical analysis and social simulations alone are powerless for analyzing complex social *** this backdrop,computational experiments have emerged as a new method for quantitative analysis of complex social systems by combining social simulation(e.g.,ABM),complexity science,and domain ***,in the process of applying computational experiments,the construction of experiment system not only considers a large number of artificial society models,but also involves a large amount of data and *** a result,how to integrate various data,model and knowledge to achieve a running experiment system has become a key *** paper proposes an integrated design framework of computational experiment system,which is composed of four parts:generation of digital subject,generation of digital object,design of operation engine,and construction of experiment ***,this paper outlines a typical case study of coal mine emergency management to verify the validity of the proposed framework.

关键词： artificial system operations

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Effect of different drying methods on the amino acids,α-dicarbonyls and volatile compounds of rape bee pollen

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Food Science and Human Wellness 2024年第1期13卷 517-527页

作者： Yanxiang bi Jiabao Ni Xiaofeng xue Zidan zh.u Wenli Tian Valérie Orsat Sha Yan Wenjun Peng Xiaoming Fang State Key Laboratory of Resource Insects Institute of Apicultural ResearchChinese Academy of Agricultural SciencesBeijing 100093China College of Engineering China Agricultural UniversityBeijing 100083China bioresource Engineering Dept. McGill UniversitySte-Anne-de-Bellevue QC H9X 3V9Canada

The significant demand for high quality food has motivated us to adopt appropriate processing methods to improve the food nutritional quality and *** this study,the effects of five drying methods,namely,pulsed vacuum drying(PVD),freeze drying(FD),infrared drying(IRD),hot-air drying(HAD)and sun drying(SD)on free amino acids(FAAs),α-dicarbonyl compounds(α-DCs)and volatile compounds(VOCs)in rape bee pollen(RBP)were *** results showed that FD significantly released the essential amino acids(EAAs)compared with fresh samples while SD caused the highest *** was the dominantα-DCs in RBP and the highest loss was observed after *** were the dominant volatiles of RBP and SD samples contained more new volatile substances(especially aldehydes)than the other four drying ***,FD and PVD would be potential methods to effectively reduce the quality deterioration of RBP in the drying process.

关键词： Drying Bee pollen Free amino acids α-Dicarbonyl compounds Volatile compounds

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Transplantation of human placental chorionic plate-derived mesenchymal stem cells for repair of neurological damage in neonatal hypoxic-ischemic encephalopathy

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Neural Regeneration Research 2024年第9期19卷 2027-2035页

作者： Lulu xue Ruolan Du Ning bi Qiuxia Xiao Yifei Sun Ruize Niu Yaxin Tan Li Chen Jia Liu Tinghua Wang Liulin Xiong Transformation Research Laboratory The Affiliated Hospital of Zunyi Medical UniversityZunyiGuizhou ProvinceChina State Key Laboratory of biotherapy Sichuan UniversityChengduSichuan ProvinceChina Institute of Neurological Disease Translational Neuroscience CenterWest China HospitalSichuan UniversityChengduSichuan ProvinceChina Department of Animal Zoology Institute of NeuroscienceKunming Medical UniversityKunmingYunnan ProvinceChina Department of Anesthesiology The Affiliated Hospital of Zunyi Medical UniversityZunyiGuizhou ProvinceChina Department of Pediatrics the People’s Liberation Army Rocket Force Characteristic Medical CenterBeijingChina

Neonatal hypoxic-ischemic encephalopathy is often associated with permanent cerebral palsy,neurosensory impairments,and cognitive deficits,and there is no effective treatment for complications related to hypoxic-ischemic *** therapeutic potential of human placental chorionic plate-derived mesenchymal stem cells for various diseases has been ***,the potential use of human placental chorionic plate-derived mesenchymal stem cells for the treatment of neonatal hypoxic-ischemic encephalopathy has not yet been *** this study,we injected human placental chorionic plate-derived mesenchymal stem cells into the lateral ventricle of a neonatal hypoxic-ischemic encephalopathy rat model and observed significant improvements in both cognitive and motor *** chip analysis showed that interleukin-3 expression was significantly elevated in neonatal hypoxic-ischemic encephalopathy model *** transplantation of human placental chorionic plate-derived mesenchymal stem cells,interleukin-3 expression was *** further investigate the role of interleukin-3 in neonatal hypoxic-ischemic encephalopathy,we established an in vitro SH-SY5Y cell model of hypoxic-ischemic injury through oxygen-glucose deprivation and silenced interleukin-3 expression using small interfering *** found that the activity and proliferation of SH-SY5Y cells subjected to oxygen-glucose deprivation were further suppressed by interleukin-3 ***,interleukin-3 knockout exacerbated neuronal damage and cognitive and motor function impairment in rat models of hypoxic-ischemic *** findings suggest that transplantation of hpcMSCs ameliorated behavioral impairments in a rat model of hypoxic-ischemic encephalopathy,and this effect was mediated by interleukin-3-dependent neurological function.

关键词： behavioral evaluations gene knockout human neuroblastoma cells(SH-SY5Y) human placental chorionic derived mesenchymal stem cells interleukin-3 neonatal hypoxic-ischemic encephalopathy nerve injury oxygen-glucose deprivation protein chip small interfering RNA

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Oleanolic acid improved intestinal immune function by activating and potentiating bile acids receptor signaling in E. coli-challenged piglets

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Journal of Animal Science and biotechnology 2024年第5期15卷 2137-2155页

作者： Chenyu xue Hongpeng Jia Rujing Cao Wenjie Cai Weichen Hong Jianing Tu Songtao Wang Qianzh. Jiang Chongpeng bi Anshan Shan Na Dong The Laboratory of Molecular Nutrition and Immunity College of Animal Science and TechnologyNortheast Agricultural UniversityHarbinP.R.China

Background Infection with pathogenic bacteria during nonantibiotic breeding is one of the main causes of animal intestinal *** acid(OA)is a pentacyclic triterpene that is ubiquitous in *** previous work demonstrated the protective effect of OA on intestinal health,but the underlying molecular mechanisms remain *** study investigated whether dietary supplementation with OA can prevent diarrhea and intestinal immune dysregulation caused by enterotoxigenic Escherichia coli(ETEC)in *** key molecular role of bile acid receptor signaling in this process has also been *** Our results demonstrated that OA supplementation alleviated the disturbance of bile acid metabolism in ETEC-infected piglets(Pbilized the composition of the bile acid pool in piglets by regulating the enterohepatic circulation of bile acids and significantly increased the contents of UDCA and CDCA in the ileum and cecum(Pbility of the intestinal microbiota structure in ETEC-challenged *** addition,as a natural ligand of bile acid receptors,OA can reduce the severity of intestinal inflammation and enhance the strength of intestinal epithelial cell antimicrobial programs through the bile acid receptors TGR5 and FXR(Pbited NF-κB-mediated intestinal inflammation by directly activating TGR5 and its downstream c AMP-PKA-CREB signaling pathway(Pbile acid metabolism plays an important role in the innate immune response,which provides a new diet-based intervention for intestinal diseases caused by pathogenic bacterial infections in pig

关键词： bile acid receptors Enterotoxigenic Escherichia coli Intestinal innate immunity Oleanolic acid

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Deep insight of unique phase transition behaviors and mechanism in Zr_(2)Co-H isotope system with ultra-low equilibrium pressure

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Rare Metals 2024年第1期43卷 212-224页

作者： Yang Liu Pan-Pan zh.u xue-zh.ng Xiao Jia-Cheng Qi Jia-Peng bi Tiao Ying Xing-Wen Feng Yan Shi Wen-Hua Luo Li-Xin Chen State Key Laboratory of Silicon Materials School of Materials Science and EngineeringZhejiang UniversityHangzhou 310027China Institute of Materials China Academy of Engineering PhysicsMianyang 621907China Key Laboratory of Advanced Materials and Applications for Batteries of zh.jiang Province Hangzhou 310013China

Efficient capture,safe storage and release of tritium from the international thermonuclear experimental reactor(ITER) reaction exhaust gas is a perplexing problem,and the development of an efficient tritium-getter material with ultra-low hydrogenation equilibrium pressure is considered as a reliable *** this work,Zr_(2)Co alloy was selected as a tritium-getter material and prepared through induction levitation *** performance test results show that Zr_(2)Co exhibits an ultra-low hydrogenation equilibrium pressure of 3.22 × 10^(-6) Pa at 25℃ and excellent hydriding kinetics under a low hydrogen pressure of 0.005 ***,unique phase transition behaviors were presented in Zr_(2)Co-H ***,Zr_(2)CoH_(5) formed by Zr_(2)Co hydrogenated at room temperature is initially decomposed into ZrH_(2) and ZrCoH_(3) at200 ℃.With the temperature increasing to 350 ℃,ZrCoH_(3)is dehydrogenated to ZrCo,and then ZrCo further reacts with ZrH_(2) at 650 ℃ to reform Zr_(2)Co and *** the staged phase transition pathways during dehydrogenation,the decomposition of Zr_(2)CoH_(5) occurs preferentially,which is well accordance with both the smallest reaction energy barrier and the maximum reaction spontaneity that are determined respectively from kinetics activation energy and thermodynamics Gibbs free ***,first principles calculation results indicate that the stronger binding of hydrogen in interstitial environments of ZrCoH_(3)and ZrH_(2) triggers the hydrogen-stabilized phase transformation of Zr_(2)CoH_(5).The unique phase transition mechanisms in Zr_(2)Co-H system can shed light on the further exploration and regulation of analogous staged phase transition of hydrogen storage materials.

关键词： Zr_(2)Co alloy Tritium-getter materials Ultralow equilibrium hydrogen pressure Phase transition mechanism

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Multi-region calcium imaging in freely behaving mice with ultra-compact head-mounted fluorescence microscopes

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National Science Review 2024年第1期11卷 161-173页

作者： Feng xue Fei Li Ke-ming zh.ng Lufeng Ding Yang Wang Xingtao zh.o Fang Xu Danke zh.ng Mingzh.i Sun Pak-Ming Lau Qingyuan zh. Pengcheng zh.u Guo-Qiang bi Department of Precision Machinery and Precision Instruments University of Science and Technology of China Hefei National Laboratory for Physical Sciences at the Microscale University of Science and Technology of China Interdisciplinary Center for Brain Information the Brain Cognition and Brain Disease Institute Shenzhen Institute of Advanced Technology Chinese Academy of Sciences Faculty of Life and Health Sciences Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences School of Life Sciences University of Science and Technology of China Institute of Semiconductors Chinese Academy of Sciences Department of Modern Life Sciences and biotecnology Xiongan Institute of Innovation Xiongan New Area Shenzh.n-Hong Kong Institute of Brain Science-Shenzh.n Fundamental Research Institutions Suzh.u Institute for Advanced Research University of Science and Technology of China Institute of Artiflcial Intelligence Hefei Comprehensive National Science Center

To investigate the circuit-level neural mechanisms of behavior, simultaneous imaging of neuronal activity in multiple cortical and subcortical regions is highly desired. Miniature head-mounted microscopes offer the capability of calcium imaging in freely behaving animals. However, implanting multiple microscopes on a mouse brain remains challenging due to space constraints and the cumbersome weight of the ***, we present TINIscope, a Tightly Integrated Neuronal Imaging microscope optimized for electronic and opto-mechanical design. With its compact and lightweight design of 0.43 g, TINIscope enables unprecedented simultaneous imaging of behavior-relevant activity in up to four brain regions in ***-of-concept experiments with TINIscope recorded over 1000 neurons in four hippocampal subregions and revealed concurrent activity patterns spanning across these regions. Moreover, we explored potential multi-modal experimental designs by integrating additional modules for optogenetics, electrical stimulation or local field potential recordings. Overall, TINIscope represents a timely and indispensable tool for studying the brain-wide interregional coordination that underlies unrestrained behaviors.

关键词： miniature microscope multiple sites calcium imaging multimodal integration hippocampus

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Prevalence of Reproductive Tract Infections and Association with Human Papillomavirus Infection Among Reproductive-Age Women—Six Tertiary Hospitals,China,June 2021-December 2022

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China CDC weekly 2024年第10期6卷 189-194,I0002页

作者： Di Gao Jiayue Li Gengli zh.o zh.ohui Liu Hui bi Dai zh.ng Fengxia xue Chen Liu Hongtao Ma Bei Lin Xu Wang Xiaosong zh.ng Linhong Wang Department of Obstetrics and Gynecology Peking University First HospitalBeijingChina School of Medicine University College DublinIreland Beijing Obstetrics and Gynecology Hospital BeijingChina Tianjin Medical University General Hospital TianjinChina Northwest Women’s and Children’s Hospital Xi’an CityShaanxi ProvinceChina Third Affiliated Hospital of zh.ngzh.u University Zhengzhou CityHenan ProvinceChina Shengjing Hospital of China Medical University Shenyang CityLiaoning ProvinceChina National Center for Chronic and Non-Communicable Disease Control and Prevention Chinese Center for Disease Control and PreventionBeijingChina

Summary What is already known about this topic?Previous studies have indicated a possible association between reproductive tract infections(RTIs)and highrisk human papillomavirus(HPV)infection,but the evidence is still *** is added by this report?This multicenter study found significantly higher positive rates of HPV,including general HPV,highrisk HPV.

关键词： Tertiary infection Reproductive

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Mitigated reaction kinetics between lithium metal anodes and electrolytes by alloying lithium metal with low-content magnesium

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Journal of Energy Chemistry 2024年第8期95卷 644-650,I0014页

作者： Yang-Yang Wang Ya-Nan Wang Nan Yao Shu-Yu Sun Xiao-Qing Ding Chen-Xi bi Qian-Kui zh.ng zh.o zh.ng Cheng-bin Jin Bo-Quan Li xue-Qiang zh.ng Jia-Qi Huang School of Materials Science and Engineering Beijing Institute of TechnologyBeijing 100081China Advanced Research Institute of Multidisciplinary Science Beijing Institute of TechnologyBeijing 100081China Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology Department of Chemical EngineeringTsinghua UniversityBeijing 100084China College of Materials and Chemistry China Jiliang UniversityHangzhou 310018ZhejiangChina

Lithium(Li)metal is regarded as a promising anode candidate for high-energy-density rechargeable ***,Li metal is highly reactive against electrolytes,leading to rapid decay of active Li metal ***,alloying Li metal with low-content magnesium(Mg)is proposed to mitigate the reaction kinetics between Li metal anodes and *** atoms enter the lattice of Li atoms,forming solid solution due to the low amount(5 wt%)of *** atoms mainly concentrate near the surface of Mg-alloyed Li metal *** reactivity of Mg-alloyed Li metal is mitigated kinetically,which results from the electron transfer from Li to Mg atoms due to the electronegativity *** on quantitative experimental analysis,the consumption rate of active Li and electrolytes is decreased by using Mgalloyed Li metal anodes,which increases the cycle life of Li metal batteries under demanding ***,a pouch cell(1.25 Ah)with Mg-alloyed Li metal anodes delivers an energy density of 340 Wh kg^(-1)and a cycle life of 100 *** work inspires the strategy of modifying Li metal anodes to kinetically mitigate the side reactions with electrolytes.

关键词： Lithium metal anodes Alloying Anode/electrolyte interface Reaction kinetics Pouch cell

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A three-way electrolyte with ternary solvents for high-energy-density and long-cycling lithium-sulfur pouch cells

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SusMat 2024年第2期4卷 1-12页

作者： zh.ng Li Legeng Yu Chen-Xi bi Xi-Yao Li JinMa Xiang Chen xue-Qiang zh.ng Aibing Chen Haoting Chen Zuoru zh.ng Li-zh.n Fan Bo-Quan Li Cheng Tang Qiang zh.ng Tsinghua Center for Green Chemical Engineering Electrification Beijing Key Laboratory of Green Chemical Reaction Engineering and TechnologyDepartment of Chemical EngineeringTsinghua UniversityBeijingChina School of Materials Science and Engineering Beijing Institute of TechnologyBeijingChina Institute of Advanced Materials and Technology University of Science and TechnologyBeijingChina Shanxi Research Institute for Clean Energy Tsinghua UniversityTaiyuanChina Center for Next-Generation Energy Materials and School of Chemical Engineering Sungkyunkwan UniversityJangan-GuSuwon-SiGyeonggi-DoRepublic of Korea College of Chemical and Pharmaceutical Engineering Hebei University of Science and TechnologyShijiazhuangChina Ordos Carbon Neutral Research and Application Co. Ltd.Kangbashi DistrictOrdos CityInner MongoliaChina Institute for Carbon Neutrality Tsinghua UniversityBeijingChina

Lithium–sulfur(Li–S)batteries promise high-energy-density potential to exceed the commercialized lithiumion batteries but suffer from limited cycling lifespan due to the side reactions between lithium polysulfides(LiPSs)and Li metal ***,a three-way electrolyte with ternary solvents is proposed to enable high-energy-density and long-cycling Li–S pouch ***,ternary solvents composed of 1,2-dimethoxyethane,di-isopropyl sulfide,and 1,3,5-trioxane are employed to guarantee smooth cathode kinetics,inhibit the parasitic reactions,and construct a robust solid electrolyte interphase,*** cycling lifespan of Li–S coin cells with 50μm Li anodes and 4.0 mg cm^(−2) sulfur cathodes is prolonged from88 to 222 cycles using the three-way ***-heterogeneous solvation structure of LiPSs and organic-rich solid electrolyte interphase are identified to improve the cycling stability of Li metal ***,a 3.0 Ah-level Li–S pouch cell with the three-way electrolyte realizes a high energy density of 405 Wh kg^(−1) and undergoes 27 *** affords a three-way electrolyte recipe for suppressing the side reactions of LiPSs and inspires rational electrolyte design for practical high-energy-density and long-cycling Li–S batteries.

关键词： lithium metal anodes lithium-sulfur batteries pouch cells solid electrolyte interphase three-way electrolyte

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