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Constraint on nuclear symmetry energy imposed by f-mode oscillation of neutron stars

Communications in Theoretical Physics 2021年第11期73卷 122-130页

作者： Jing Zhang Dehua Wen yuxi li School of Physics and Optoelectronics South China University of TechnologyGuangzhou 510641China

Due to improvements in the sensitivity of gravitational wave(GW)detectors,the detection of GWs originating from the fundamental quasi-normal mode(f-mode)of neutron stars has become *** future detection of GWs originating from the f-mode of neutron stars will provide a potential way to improve our understanding of the nature of nuclear matter inside neutron *** this work,we investigate the constraint imposed by the f-mode oscillation of neutron stars on the symmetry energy of nuclear matter using Bayesian analysis and parametric *** is shown that if the frequency of the f-mode of a neutron star of known mass is observed precisely,the symmetry energy at twice the saturation density(E_(sym)(2_(ρ0)))of nuclear matter can be constrained within a relatively narrow *** example,when all the following parameters are within the given intervals:220≤K0≤260 Me V,28≤E_(sym)(ρ0)≤36 Me V,30≤L≤90 Me V,-800≤J0≤400 Me V,-400≤K_(sym)≤100 Me V,-200≤Jsym≤800 Me V,E_(sym)(2ρ0)will be constrained to within-+48.***.56.6 Me V if the f-mode frequency of a canonical neutron star(1.4 M■)is observed to be 1.720 k Hz with a 1%relative ***,if only f-mode frequency detection is available,*** is no stellar mass measurement,a precisely detected f-mode frequency can also impose an accurate constraint on the symmetry *** example,given the same parameter space and the same assumed observed f-mode frequency mentioned above,and assuming that the stellar mass is in the range of 1.2–2.0 Me,E_(sym)(2ρ0)will be constrained to within 49.5■*** addition,it is shown that a higher slope of 69≤L≤143 Me V will give a higher posterior distribution of E_(sym)(2ρ0),53.8■MeV.

关键词： f-mode Bayesian analysis nuclear symmetry energy neutron star

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Round empty core infiltration and anti-filtration recharge wells and laboratory recharge tests

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Frontiers of Earth Science 2020年第2期14卷 298-305页

作者： yuxi li Wanglin li Jiapeng HE Chunhui ZHANG School of Water Conservancy and Environment University of JinanJinan 250022China

Anti-filtration recharge wells are commonly installed in river channels and irrigation canals on the Shandong Peninsula,China,and can be used as an important recharge facility for underground ***,during recharge,as the running time increases,the recharge capacity gradually *** study was undertaken to develop a new recharge well and mitigate this deficiency.A round empty core infiltration and antifiltration recharge well and laboratory recharge test equipment were ***,1:25 models of the recharge pond,a round empty core recharge wellhead,and an artificial recharge well were *** equal recharge levels and ambient groundwater levels,laboratory steady-flow recharge tests on the existing anti-filtration recharge well,the new round empty core infiltration and anti-filtration recharge well,and an artificial recharge well were carried *** data on the measured groundwater table and single-well recharge quantity were also collected and *** results showed that compared with the existing anti-filtration recharge well,the new round empty core infiltration and anti-filtration recharge well had stronger anti-deposition and anti-scouring properties,and the single-well recharge quantity increased by 403%.With an increase in the number of recharge tests,the single-well recharge quantity gradually decreased and tended to stabilize as a whole.

关键词： recharge well infiltration function anti-filtration function recharge quantity recharge test

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胶质淋巴系统研究的知识图谱与趋势可视化分析

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中国组织工程研究 2025年第23期29卷 5051-5060页

作者：马星怡李惠菁李涓钟冬灵张源唐红李雨谿金荣疆成都中医药大学养生康复学院四川省成都市610075 成都中医药大学临床医学院四川省成都市610075 成都中医药大学附属四川省康复医院四川省成都市611135 成都中医药大学针灸推拿学院四川省成都市610075

背景:大脑的代谢废物清除功能对于维持神经稳态极为关键,代谢废物积累导致的神经稳态失衡是许多中枢神经系统疾病的共同病理学特征。近年来,围绕胶质淋巴系统的研究逐渐成为神经系统领域的研究热点。目的:旨在通过构建胶质淋巴系统研究... 详细信息

背景:大脑的代谢废物清除功能对于维持神经稳态极为关键,代谢废物积累导致的神经稳态失衡是许多中枢神经系统疾病的共同病理学特征。近年来,围绕胶质淋巴系统的研究逐渐成为神经系统领域的研究热点。目的:旨在通过构建胶质淋巴系统研究的知识图谱,可视化地分析该领域的研究现状、热点及其未来的发展趋势。方法:采用Cite Space、VOSviewer软件及R语言环境下的Bibliometrix工具包,对2012年1月至2024年3月Web of Science核心合集数据库中与胶质淋巴系统相关的原始文献进行深入可视化分析,分析内容包括作者、机构、国家、期刊、关键词和共被引文献等。结果与结论:研究共纳入687篇相关文章,该领域发文量逐年增长,近3年呈现爆发性增长趋势;该研究领域发文量第一的国家、机构、作者分别是美国、美国罗切斯特大学和罗切斯特大学的Maiken Nedergaard教授,发文量第一的期刊是《JOURNAL OF CEREBRAL BLOOD FLOW AND METABOliSM》,高频、高中心性关键词主要围绕脑脊液流体动力学等作用机制、阿尔茨海默症等神经系统疾病、扩散张量成像等影像学技术等方面,共被引频次最高的文献是一篇胶质淋巴系统的经典综述论文。上述结果表明,胶质淋巴系统的研究是一个新兴而活跃的领域,目前已受到国内外的广泛关注并逐渐从理论研究向临床实践扩展。

关键词：胶质淋巴系统研究现状研究热点发展趋势可视化图谱 Cite Space VOSviewer R语言

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Microreactor platform for continuous synthesis of electronic doped quantum dots

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Nano Research 2022年第10期15卷 9647-9653页

作者： yuxi li Yanbin li Xinyuan li Tailei Hou Chen Qiao Yunpeng Tai Xiaole Gu Di Zhao Le Sang Jiatao Zhang Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications Key Laboratory of Medical Molecule Science and Pharmaceutics EngineeringMOE Key Laboratory of Cluster ScienceSchool of Chemistry and Chemical EngineeringBeijing Institute of TechnologyBeijing 100081China State Key Laboratory of Organic-Inorganic Composites Beijing University of Chemical TechnologyBeijing 100029China School of Chemistry and Chemical Engineering Beijing Institute of TechnologyBeijing 102488China

Electronic doped quantum dots(Ed-QDs),by heterovalent cations doping,have held promise for future device concepts in optoelectronic and spin-based technologies due to their broadband Stokes-shifted luminescence,enhanced electrical transport and tailored magnetic *** their scale-up requirement and the low yielding of several current colloidal synthesis methods,a stable and efficient bulk synthesis strategy must be *** have long been recognized as an effective platform for producing nanomaterials and fabricating large-scale ***,we chose microreactor platform for continuous synthesis of Ed-QDs in the air at low *** original reverse cation exchange reaction mechanism together with varying the kinetic conditions of microreactor platform,such as liquid flow rate,the Ag doped CdS(CdS:Ag)Ed-QDs with higher yield have been synthesized successfully due to the continuous synthesis advantages with a high degree of size *** by microreactor engineering simulation,this research not only provides a new synthetic method towards scale-up production but also enables to improve chemical mass production of similar functional QDs for optical devices,bioimaging and innovative information processing applications.

关键词： quantum dots microreactor continuous synthesis scale-up

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Tunable slow-light multi-mode photonic crystal waveguides based on the coupling of square cavities

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Science China(Physics,Mechanics & Astronomy) 2012年第10期55卷 1769-1775页

作者： FENG Shuai YANG GuoJian li yuxi CHEN Xiao WANG YiQuan WANG WenZhong School of Science Minzu University of ChinaBeijing 100081China

The light transmission properties through two-dimensional photonic crystal waveguides based on coupling of square cavities are studied by the finite-difference time-domain *** interlacing the adjacent cavities along the direction vertical to the waveguide,the coupling distance between the adjacent cavities is extended,and the group velocity of the guiding modes can be slowed by five-fold compared with that in *** of the different spatial field distributions of various resonant modes,the corresponding group velocities are also different for the same CROW structure.

关键词： photonic crystal coupled-resonator optical waveguide group velocity

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Building the metaverse using digital twins at all scales,states,and relations

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Virtual Reality & Intelligent Hardware 2022年第6期4卷 459-470页

作者： Zhihan LV Shuxuan XIE yuxi li M.Shamim HOSSAIN Abdulmotaleb El SADDIK Department of Game Design Faculty of ArtsUppsala UniversitySweden College of Computer Science and Technology Qingdao UniversityQingdaoChina Department of Software Engineering College of Computer and Information SciencesKing Saud UniversityRiyadhSaudi Arabia School of Electrical Engineering and Computer Science(EECS) University of OttawaOttawaOntarioCanada

Developments in new-generation information technology have enabled Digital Twins to reshape the physical world into a virtual digital space and provide technical support for constructing the *** objects can be at the micro-,meso-,or *** Metaverse is a complex collection of solid,liquid,gaseous,plasma,and other uncertain ***,the Metaverse integrates tangibles with social relations,such as interpersonal(friends,partners,and family)and social relations(ethics,morality,and law).This review introduces some principles and laws,such as broken windows theory,small-world phenomenon,survivor bias,and herd behavior,for constructing a Digital Twins model for social ***,from multiple perspectives,this article reviews mappings of tangible and intangible real-world objects to the Metaverse using the Digital Twins model.

关键词： Digital twins Metaverse Sensor

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Brazilein intervention for sciatic nerve injury in BALB/c mice

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Neural Regeneration Research 2011年第12期6卷 908-913页

作者： Zhan Zhang Jian Cao Weitian Yin lisen li yuxi Jia Haoyu liu Mingming Zhao Rihua Jiang China-Japan Union Hospital of Jilin University Changchun 130033 Jilin Province China

Brazilein has been shown to exert an immune regulation effect on regeneration in the central nervous system, but there is currently no consensus regarding its effect on sciatic nerve injury. In the current study, western blot and real-time PCR detection revealed that, after 16 and 8 g/kg of brazilein intervention, the amount of S100 protein and mRNA at L4-6 spinal segments of sciatic nerve injured mice was significantly greater than after 4 g/kg brazilein administration, and in an untreated model group. Luxol Fast Blue myelin staining revealed that neural regeneration after 16 and 8 g/kg of brazilein intervention was significantly better than after 4 g/kg brazilein administration, and in the model group. In addition, electrophysiological and immunohistochemical examinations further confirmed the effect of brazilein in repairing sciatic nerve injury in BALB/c mice. These results indicated that brazilein was able to activate the S100 in anterior horn cells of the spinal cord, promoting sciatic nerve regeneration and repair. Both moderate and high doses were found to exert significant effects.

关键词： brazilein peripheral nerve injury S100 protein sciatic nerve neural regeneration

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Clonal variations in cone,seed and nut traits in a Pinus koraiensis seed orchard in Northeast China

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Journal of Forestry Research 2021年第1期32卷 171-179页

作者： David Kombi Kaviriri yuxi li Dawei Zhang Hongtao li Zuoyi Fan Jingyuan Wang lianfu Wang Qi Wang Deqiu Wang Vincent L.Chiang Xiyang Zhao State Key Laboratory of Tree Genetics and Breeding Northeast Forestry UniversityHarbin 150040People’s Republic of China Forest Cultivation Center Linjiang Forestry Bureau of JilinLinjiang 134600People’s Republic of China Department of Natural Resources Management Faculty of Agricultural SciencesUniversity of KinshasaKinshasaDemocratic Republic of Congo Department of Forestry Faculty of Agricultural SciencesSemuliki Offi cial UniversityBeniDemocratic Republic of Congo

Korean pine(Pinus koraiensis Siebold&Zucc.)in Northeastern China has been genetically improved to increase seed yields in addition to *** assess seed yield variability and select highly productive clones,14 cone,seed and nut traits were measured and *** analysis showed that all clones were signifi cantly different in various traits(Plity of traits ranged from 9.1 to 34.4%and from 27.5 to 97.7%,*** for the cone layer and cone seed numbers,the other traits were positively or negatively *** principal components were identifi *** and nut traits were the most important traits in the fi rst principal component,and cone traits more important in the *** correlation and principal component analyses,cone number and other traits were selected to evaluate ***-two clones were selected using a selection rate of 10%based on cone number independently or other combined *** genetic gain for diff erent traits ranged from 6.2 to 24.3%.The selected elite clones can supply seedlings for reforestation and the selection method can provide a theoretical basis for selection in other conifer species.

关键词： Pinus koraiensis Clones Cone Seed Nut traits Principal component analysis

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Coupling of Adhesion and Anti‑Freezing Properties in Hydrogel Electrolytes for Low‑Temperature Aqueous‑Based Hybrid Capacitors

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Nano-Micro Letters 2024年第2期16卷 15-31页

作者： Jingya Nan Yue Sun Fusheng Yang Yijing Zhang yuxi li Zihao Wang Chuchu Wang Dingkun Wang Fuxiang Chu Chunpeng Wang Tianyu Zhu Jianchun Jiang Institute of Chemical Industry of Forest Products Chinese Academy of ForestryKey Laboratory of Biomass Energy and MaterialJiangsu ProvinceNanjing 210042JiangsuPeople’s Republic of China Co‑Innovation Center of Efficient Processing and Utilization of Forest Resources Nanjing Forestry UniversityNanjing 210037JiangsuPeople’s Republic of China Energy Technologies Area Lawrence Berkeley National LaboratoryBerkeleyCA 94720USA Department of Materials Science and Engineering Clemson UniversityClemsonSC 29634USA

Solid-state zinc-ion capacitors are emerging as promising candidates for large-scale energy storage owing to improved safety,mechanical and thermal stability and easy-to-direct *** electrolytes are appealing solid-state electrolytes because of eco-friendliness,high conductivity and intrinsic ***,the electrolyte/electrode interfacial contact and anti-freezing properties of current hydrogel electrolytes are still challenging for practical applications of zinc-ion ***,we report a class of hydrogel electrolytes that couple high interfacial adhesion and anti-freezing *** synergy of tough hydrogel matrix and chemical anchorage enables a well-adhered interface between hydrogel electrolyte and ***,the cooperative solvation of ZnCl2 and liCl hybrid salts renders the hydrogel electrolyte high ionic conductivity and mechanical elasticity simultaneously at low *** significantly,the Zn||carbon nanotubes hybrid capacitor based on this hydrogel electrolyte exhibits low-temperature capacitive performance,delivering high-energy density of 39 Wh kg^(-1)at-60°C with capacity retention of 98.7%over 10,000 *** the benefits of the well-adhered electrolyte/electrode interface and the anti-freezing hydrogel electrolyte,the Zn/li hybrid capacitor is able to accommodate dynamic deformations and function well under 1000 tension cycles even at-60°*** work provides a powerful strategy for enabling stable operation of low-temperature zinc-ion capacitors.

关键词： Interfacial adhesion Anti-freezing Hydrogel electrolytes Low-temperature hybrid capacitors Dynamic deformati

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G×E Analysis of Growth Traits of Betula platyphylla Clones at Three Separated Sites in Northeastern China

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Phyton-International Journal of Experimental Botany 2022年第9期91卷 2055-2068页

作者： yuxi li Xinxin Zhang Qinhui Zhang Luping Jiang Rui Han Siqi Sun Xiaoqing Hu Xiaona Pei Chunli Zhao Xiyang Zhao College of Forestry and Grassland Jilin Agricultural UniversityChangchun130118China State Key Laboratory of Tree Genetics and Breeding Northeast Forestry UniversityHarbin150040China

To select elite materials,the growth traits of 32 Betula platyphylla clones at three separated northern sites in Northeast China were investigated and *** results showed that there were significant differences among all variation sources in the different investigated traits(Plity of different traits ranged from 0.760 to *** analysis showed that tree height were significantly correlated with diameter at breast height,but neither was significantly correlated with leaf traits nor element *** main effects and multiplicative interaction analysis showed that genotype,environment and genotype×environment interactions were significantly different in diameter at breast height,which indicated that environment had a significant effect on *** assessment results showed that three clones with high and stable diameters at breast height were selected,and the genetic gains of diameter at breast height on sites Maoershan,Qingan,and Yongji were 21.24%,20.58%,and 38.65%,*** results could provide a theoretical basis for elite clone selection in *** and other broad leaved species.

关键词： Betula platyphylla growth traits genetic variation AMMI stability

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