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Carbon materials for stable Li metal anodes: Challenges, solutions, and outlook

Carbon Energy 2021年第6期3卷 957-975页

作者： Qiongqiong lu yulin Jie Xiangqi Meng Ahmad Omar Daria Mikhailova Ruiguo Cao Shuhong Jiao Yan lu Yaolin Xu Leibniz Institute for Solid State and Materials Research(IFW)Dresden e.V. DresdenGermany Hefei National Laboratory for Physical Sciences at the Microscale CAS Key Laboratory of Materials for Energy ConversionDepartment of Materials Science and EngineeringUniversity of Science and Technology of ChinaHefeiChina Department of Electrochemical Energy Storage Helmholtz-Zentrum Berlin für Materialien und Energie(HZB)BerlinGermany Institute of Chemistry University of PotsdamPotsdamGermany

Lithium(Li)metal is regarded as the ultimate anode for next-generation Li-ion batteries due to its highest specific capacity and lowest electrochemical potential.However,the Li metal anode has limitations,including virtually infinite volume change,nonuniform Li deposition,and an unstable electrode-electrolyte interface,which lead to rapid capacity degradation and poor cycling stability,significantly hindering its practical application.To address these issues,intensive efforts have been devoted toward accommodating and guiding Li deposition as well as stabilizing the interface using various carbon materials,which have demonstrated excellent effectiveness,benefiting from their vast variety and excellent tunability of the structure-property relationship.This review is intended as a guide through the fundamental challenges of Li metal anodes to the corresponding solutions utilizing carbon materials.The specific functionalities and mechanisms of carbon materials for stabilizing Li metal anodes in these solutions are discussed in detail.Apart from the stabilization of the Li metal anode in liquid electrolytes,attention has also been paid to the review of anode-free Li metal batteries and solid-state batteries enabled by strategies based on carbon materials.Furthermore,we have reviewed the unresolved challenges and presented our outlook on the implementation of carbon materials for stabilizing Li metal anodes in practical applications.

关键词： carbon materials interface engineering Li deposition regulation Li metal anode structure stabilization

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Experimental exploration of five-qubit quantum error-correcting code with superconducting qubits

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National Science Review 2022年第1期9卷 100-106页

作者： Ming Gong Xiao Yuan Shiyu Wang yulin Wu Youwei Zhao Chen Zha Shaowei Li Zhen Zhang Qi Zhao Yunchao Liu Futian Liang Jin Lin Yu Xu Hui Deng Hao Rong He lu Simon C.Benjamin Cheng-Zhi Peng Xiongfeng Ma Yu-Ao Chen Xiaobo Zhu Jian-Wei Pan Hefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics University of Science and Technology of China Shanghai Branch CAS Center for Excellence and Synergetic Innovation Center in Quantum Information and Quantum Physics University of Science and Technology of China Shanghai Research Center for Quantum Sciences Center for Quantum Information Institute for Interdisciplinary Information Sciences Tsinghua University Department of Materials University of Oxford

Quantum error correction is an essential ingredient for universal quantum computing.D espite tremendous experimental efforts in the study of quantum error correction,to date,there has been no demonstration in the realis ation of universal quantum error-correcting code,with the subsequent verification of all key features including the identification of an arbitrary physical error,the capability for transversal manipulation of the logical state and state decoding.To address this challenge,we experimentally realise the [5,1,3]code,the so-called smallest perfect code that permits corrections of generic single-qubit errors.In the experiment,having optimised the encoding circuit,we employ an array of superconducting qubits to realise the [5,1,3] code for several typical logical states including the magic state,an indispensable resource for realising non-Clifford gates.The encoded states are prepared with an average fidelity of 57.1(3)% while with a high fidelity of 98.6(1)% in the code space.Then,the arbitrary single-qubit errors introduced manually are identified by measuring the stabilisers.We further implement logical Pauli operations with a fidelity of 97.2(2)% within the code space.Finally,we realise the decoding circuit and recover the input state with an overall fidelity of 74.5(6)%,in total with 92 gates.Our work demonstrates each key aspect of the [5,1,3] code and verifies the viability of experimental realisation of quantum error-correcting codes with superconducting qubits.

关键词： quantum error-correcting code superconducting qubit five-qubit code error detection logical operation

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机械活化协同固相法制备羧甲基多孔淀粉及其在粉末酱油中的应用

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食品工业科技 2024年第12期45卷 215-224页

作者：杨家添苗雨韦梦婷卢广源陈渊胡华宇广西农产资源化学与生物技术重点实验室玉林师范学院化学与食品科学学院广西玉林537000 广西大学化学化工学院广西南宁530004

为获得一种绿色高效的羧甲基多孔淀粉制备工艺,本研究以酶解制得的多孔木薯淀粉为原料,氯乙酸钠为醚化剂,氢氧化钠为催化剂,采用机械活化协同固相醚化法制备羧甲基多孔淀粉,通过单因素实验探究各因素对羧甲基多孔淀粉取代度(Degree of s... 详细信息

为获得一种绿色高效的羧甲基多孔淀粉制备工艺,本研究以酶解制得的多孔木薯淀粉为原料,氯乙酸钠为醚化剂,氢氧化钠为催化剂,采用机械活化协同固相醚化法制备羧甲基多孔淀粉,通过单因素实验探究各因素对羧甲基多孔淀粉取代度(Degree of substitution,DS)的影响,并探讨羧甲基多孔淀粉在酱油中的应用。结果表明,机械活化协同固相法制备羧甲基多孔淀粉的最佳工艺条件为:多孔淀粉与氯乙酸钠的物质的量之比为1:1,氢氧化钠质量分数为18.8%,球磨时间1.5 h,反应温度50℃,此条件下制备得到的羧甲基多孔淀粉取代度最高为0.2532。通过红外光谱仪(Infrared spectrometer,FTIR)、X-射线粉末衍射仪(X-ray powder diffractometer,XRD)和扫描电镜(Scanning electron microscope,SEM)等表征,进一步证实多孔淀粉发生了羧甲基化反应。随着羧甲基多孔淀粉DS的增大其冷水溶解度、吸水率和柠檬黄吸附量增大;当DS为0.2532时,羧甲基多孔淀粉的冷水溶解度达到64.94%,吸水率达到180.73%,柠檬黄吸附量达到2.5086 mg·g^(-1)。羧甲基多孔淀粉所制备的粉末酱油相比于木薯淀粉和多孔淀粉所制备的粉末酱油溶解性更好,吸潮性更低,氨基酸态氮含量更高,与原酱油最接近。因此,机械活化协同固相醚化法可有效制备羧甲基多孔淀粉,该法操作简单,绿色环保,取代高,为多孔淀粉的开发利用提供了科学依据。

关键词：机械活化固相法羧甲基多孔淀粉取代度粉末酱油

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SlMYB72 affects pollen development by regulating autophagy in tomato

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Horticulture Research 2023年第3期10卷 15-27页

作者： Mengbo Wu Qiongdan Zhang Guanle Wu lu Zhang Xin Xu Xiaowei Hu Zehao Gong yulin Chen Zhengguo Li Honghai Li Wei Deng Key Laboratory of Plant Hormones and Development Regulation of Chongqing School of Life SciencesChongqing UniversityChongqing 400044China Center of Plant Functional Genomics Institute of Advanced Interdisciplinary StudiesChongqing University401331 ChongqingChina Department of Horticulture and Landscape Architecture Oklahoma State UniversityStillwaterOK 74078USA

The formation and development of pollen are among the most critical processes for reproduction and genetic diversity in the life cycle of f lowering plants.The present study found that SlMYB72 was highly expressed in the pollen and tapetum of tomato f lowers.Downregulation of SlMYB72 led to a decrease in the amounts of seeds due to abnormal pollen development compared with wild-type plants.Downregulation of SlMYB72 delayed tapetum degradation and inhibited autophagy in tomato anther.Overexpression of SlMYB72 led to abnormal pollen development and delayed tapetum degradation.Expression levels of some autophagy-related genes(ATGs)were decreased in SlMYB72 downregulated plants and increased in overexpression plants.SlMYB72 was directly bound to ACCAAC/ACCAAA motif of the SlATG7 promoter and activated its expression.Downregulation of SlATG7 inhibited the autophagy process and tapetum degradation,resulting in abnormal pollen development in tomatoes.These results indicated SlMYB72 affects the tapetum degradation and pollen development by transcriptional activation of SlATG7 and autophagy in tomato anther.The study expands the understanding of the regulation of autophagy by SlMYB72,uncovers the critical role that autophagy plays in pollen development,and provides potential candidate genes for the production of male-sterility in plants.

关键词： expression inhibited autophagy

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中国人群33104例单基因病携带者筛查的多中心研究

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南方医科大学学报 2024年第6期44卷 1015-1023页

作者：侯伟付晓琳谢潇潇张春燕边佳昕毛翛文娟罗春玉金华祝茜戚庆炜钱叶青袁静赵彦艳尹爱兰李树铁蒋宇林张蔓丽肖锐卢彦平中国人民解放军医学院北京100853 中国人民解放军总医院第一医学中心妇产科北京100853 中国人民解放军总医院医学创新研究部北京100853 浙江博圣生物技术股份有限公司浙江杭州310058 湖南省妇幼保健院湖南长沙410008 中南大学医学遗传学研究中心湖南长沙410083 南京市妇幼保健院遗传医学中心江苏南京210011 济南市妇幼保健院孕产医疗保健部山东济南250000 四川大学华西第二医院医学遗传科四川成都610041 中国医学科学院北京协和医院妇产科北京100730 浙江大学医学院附属妇产科医院生殖遗传科浙江杭州311215 安徽医科大学第一附属医院产前诊断中心安徽合肥230022 中国医科大学附属盛京医院临床遗传科辽宁沈阳110004 南方医科大学南方医院妇产科广东广州510515 河北北方学院附属第一医院住培办河北张家口075061 中国人民解放军总医院第七医学中心妇产医学部北京100010

目的通过大规模多中心的多种遗传病携带者筛查,调查中国人群单基因病的流行病学特征以及突变谱,为制定适合中国人群的遗传病预防策略提供依据。方法本研究在中国的12个临床中心共招募33 104例受检者(16 610例女性),基于高通量测序和多... 详细信息

目的通过大规模多中心的多种遗传病携带者筛查,调查中国人群单基因病的流行病学特征以及突变谱,为制定适合中国人群的遗传病预防策略提供依据。方法本研究在中国的12个临床中心共招募33 104例受检者(16 610例女性),基于高通量测序和多种PCR对223个基因的携带者状态进行检测。结果 197个常染色体基因的合并携带者频率为55.58%,26个X连锁基因的合并携带者频率为1.84%。在16 669例家系中,共检出874对(5.24%)高危夫妇。其中常染色体基因高危夫妇584对(3.50%),X连锁基因高危夫妇306对(1.84%),16对夫妇同时为常染色体基因和X连锁基因高危夫妇。最常检出的常染色体高危基因包括GJB2(常染色体隐性耳聋1A,393对),HBA1/HBA2(α-地中海贫血,36对)和PAH(苯丙酮尿症,14对),SMN1(脊髓性肌萎缩症,14对)。最常检出的X连锁高危基因包括G6PD(G6PD缺乏症,236对),DMD(进行性假肥大性肌营养不良,23对)和FMR1(脆性X综合征,17对)。除外G6PD后的高危夫妇率为3.91%(651/16 669),进一步除外GJB2 c.109G>A位点后,高危夫妇率为1.72%(287/16 669)。理论上严重的单基因病出生缺陷的发病率约为4.35‰(72.5/16 669)。对导致高危夫妇最多的22个基因进行筛查可检出95%以上的高危夫妇,对导致高危夫妇最多的54个基因进行筛查可检出99%以上的高危夫妇。结论本研究揭示了我国人群中223种单基因病的携带者频率,为中国人群的携带者筛查策略制定和panel设计提供依据。在携带者筛查实践中,针对某些特殊基因或变异位点的遗传咨询可能会面临困难。这些特殊基因或变异需要在检测前告知受检夫妇,并在可能的情况下提供不筛查这些基因或变异的选择。

关键词：携带者筛查单基因病遗传咨询

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One Stone for Three Birds-Rhodium-Catalyzed Highly Diastereoselective Intramolecular [4+2] Cycloaddition of Optically Active Allene-1,3-dienes

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Chinese Journal of Chemistry 2019年第5期37卷 486-496页

作者： yulin Han Anni Qin Shengming Ma State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Chinese Academy of Sciences 345 Lingling Lu Shanghai 200032 China University of Chinese Academy of Sciences Beijing 100049 China Research Center for Molecular Recognition and Synthesis Department of Chemistry Fudan University 220 Handan Road Shanghai 200433 China

Summary of main observation and conclusion RhCI(PPh3)3-catalyzed [4+2] intramolecular cycloaddition of optically active axially chiral allene-dienes afforded c/s-fused [3.4.0]-bicyclic products with three chiral centers in good yields with an excellent chemo-and diastereoselectivity. A pair of enantiomers of such products was gen erated highly selectively from both ena ntiomers of starting allene-die nes, indicati ng that the axial chirality dictated the absolute configurations of the three in situ generated chiral centers with a very high efficiency of chirality transfer.

关键词： chiral excellent transfer

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Safety Protection Method of Rehabilitation Robot Based on fNIRS and RGB-D Information Fusion

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Journal of Shanghai Jiaotong university(Science) 2022年第1期27卷 45-54页

作者：李栋樊钰琳吕娜陈国栋王正迟文政 School of Mechanical and Electrical Engineering/Jiangsu Provincial Key Laboratory of Advanced Robotics/Collaborative Innovation Center of Suzhou Nano Science and Technology Soochow UniversitySuzhou 215123JiangsuChina Department of Gerontology Shanghai Jiao Tong University Affiliated Sixth People’s HospitalShanghai 200233China Department of Instrument Science and Engineering Shanghai Jiao Tong UniversityShanghai 200240China

In order to improve the safety protection performance of the rehabilitation robot,an active safety protection method is proposed in the rehabilitation scene.The oxyhemoglobin concentration information and RGB-D information are combined in this method,which aims to realize the comprehensive monitoring of the invasion target,the patient’s brain function movement state,and the joint angle in the rehabilitation scene.The main focus is to study the fusion method of the oxyhemoglobin concentration information and RGB-D information in the rehabilitation scene.Frequency analysis of brain functional connectivity coefficient was used to distinguish the basic motion states.The human skeleton recognition algorithm was used to realize the angle monitoring of the upper limb joint combined with the depth information.Compared with speed and separation monitoring,the protection method of multi-information fusion is safer and more comprehensive for stroke patients.By building the active safety protection platform of the upper limb rehabilitation robot,the performance of the system in different safety states is tested,and the safety protection performance of the method in the upper limb rehabilitation scene is verified.

关键词： upper limb rehabilitation robot safety protection functional near-infrared spectroscopy(fNIRS) multi-information fusion

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Simplified full-depth precast concrete deck panel systems for accelerated bridge construction

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Journal of Modern Transportation 2016年第4期24卷 251-260页

作者： Zhongguo John Ma yulin Zhan Lin Xiao lungui Li Weiwei lu Department of Civil and Environmental Engineering University of Tennessee School of Civil Engineering Southwest Jiaotong University Key Laboratory of High-Speed Railway Engineering Ministry of Education Southwest Jiaotong University

A simplified full-depth precast concrete deck panel system for accelerating bridge construction （ABC） is introduced and a finite dement analysis （FEA） is con- ducted to investigate the static and dynamic responses of this conceptual deck system. The FEA results are compared to those of the traditional full-depth precast concrete deck panel system. The comparison results show that the mechanical behavior of the new deck system is different from that of the traditional deck system. The concrete decks in the new system act as two-way slabs, instead of the one-way slab in the traditional system. Meanwhile, the connections in both the longitudinal and transverse direc- tions may need to accommodate the negative moments. Compared to those in the traditional system, the longitu- dinal nominal stress at middle span increases a lot in the new deck system and the effective flange width varies significantly. In addition, the dynamic results show that the impact factor is influenced by the spacing of connections. Finally, some design concerns of the new deck system are proposed.

关键词： Simplified full-depth precast concrete deckpanel systems ~ Accelerated bridge construction ~ Structuralresponse

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铁相对水泥熟料形成与水化及抗侵蚀性能影响研究进展

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硅酸盐学报 2023年第5期51卷 1259-1271页

作者：卢晓磊邵玉林张响程新济南大学山东省建筑材料制备与测试技术重点实验室济南250022 济南大学材料科学与工程学院济南250022

铁相作为低碳高抗蚀水泥熟料的关键矿物,对改善水泥生料易烧性、熟料的形成与水化及提升水泥抗离子侵蚀能力发挥重要作用.本文综述了铁相的物化特性并总结了其对硅酸盐水泥与硫铝酸盐水泥影响的最新研究进展,重点就铁相对两种水泥熟料... 详细信息

铁相作为低碳高抗蚀水泥熟料的关键矿物,对改善水泥生料易烧性、熟料的形成与水化及提升水泥抗离子侵蚀能力发挥重要作用.本文综述了铁相的物化特性并总结了其对硅酸盐水泥与硫铝酸盐水泥影响的最新研究进展,重点就铁相对两种水泥熟料矿物形成、水化速率与产物、力学与抗离子侵蚀性能影响进行了分析与讨论,并在最后提出了低碳高抗蚀水泥亟待解决的问题与应用前景.

关键词：铁相水泥熟料矿物形成水化抗侵蚀性能

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基于物联网的城市交叉路段交通信号智能控制方法

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电子设计工程 2024年第5期32卷 136-140页

作者：韩贝卢磊榆林学院信息工程学院陕西榆林719000

城市交叉路段交通信号采集系统采集到的信号频谱中线谱信号较少,导致采集速度较慢。为了解决上述问题,提出基于物联网的城市交叉路段交通信号智能控制方法。系统硬件选用FL2440微处理器处理数据,通过YHSG-86G的传感器放大信号。利用双... 详细信息

城市交叉路段交通信号采集系统采集到的信号频谱中线谱信号较少,导致采集速度较慢。为了解决上述问题,提出基于物联网的城市交叉路段交通信号智能控制方法。系统硬件选用FL2440微处理器处理数据,通过YHSG-86G的传感器放大信号。利用双通道模式输出通信数字,选择具备三路HDMI信号与一路HDMI信号自动切换功能的嵌入器。采用GH89S信号采集器提高系统对交通信号的采集效率。在硬件设计的基础上,引入模糊关联规则算法对交通信号数据进行挖掘,通过数据分类、挖掘交叉路段交通信号数据、信号标识、信号存储获取交通信号数据。以此实现城市交叉路段交通信号智能控制。实验结果表明,所提方法能够更清晰地显示出信号频谱中的线谱信号,提高信号的采集速度。

关键词：物联网交叉路段交通信号信号采集信号控制

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