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A Facile li_(2)TiO_(3) Surface Modification to Improve the Structure Stability and Electrochemical Performance of Full Concentration Gradient li-Rich Oxides

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Energy & Environmental Materials 2024年第3期7卷 41-48页

作者： Naifang hu Yuan Yang lin li Yuhan zhang Zhiwei hu lan zhang Jun Ma Guanglei Cui Qingdao Industrial Energy Storage Research Institute Qingdao Institute of Bioenergy and Bioprocess TechnologyChinese Academy of SciencesQingdao 266101China Institute of Materials Science and Engineering Ocean University of ChinaQingdao 266100China School of Future Technology University of Chinese Academy of SciencesBeijing 100049China Max Planck Institute for Chemical Physics of Solids Nothnitzer Strasse 40Dresden D-01187Germany CAS key laboratory of Green Process and Engineering Beijing Key Laboratory of Ionic Liquids Clean ProcessState Key Laboratory of Multiphase Complex SystemsInstitute of Process EngineeringChinese Academy of SciencesBeijing 100190China Shandong Energy Institute Qingdao 266101China

Full concentration gradient lithium-rich layered oxides are catching lots of interest as the next generation cathode for lithium-ion batteries due to their high discharge voltage,reduced voltage decay and enhanced rate performance,whereas the high lithium residues on its surface impairs the structure stability and long-term cycle ***,a facile multifunctional surface modification method is implemented to eliminate surface lithium residues of full concentration gradient lithium-rich layered oxides by a wet chemistry reaction with tetrabutyl titanate and the post-annealing *** realizes not only a stable li_(2)TiO_(3)coating layer with 3D diffusion channels for fast li^(+)ions transfer,but also dopes partial Ti^(4+)ions into the sub-surface region of full concentration gradient lithium-rich layered oxides to further strengthen its crystal ***,the modified full concentration gradient lithium-rich layered oxides exhibit improved structure stability,elevated thermal stability with decomposition temperature from 289.57℃to 321.72℃,and enhanced cycle performance(205.1 mAh g^(-1)after 150 cycles)with slowed voltage drop(1.67 mV per cycle).This work proposes a facile and integrated modification method to enhance the comprehensive performance of full concentration gradient lithium-rich layered oxides,which can facilitate its practical application for developing higher energy density lithium-ion batteries.

关键词： full concentration gradient lithium-rich layered oxides structure stability surface modification

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Benchmark experiment on slab^(238)U with D-T neutrons for validation of evaluated nuclear data

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Nuclear Science and Techniques 2024年第2期35卷 145-159页

作者： Yan-Yan Ding Yang-Bo Nie Yue zhang Zhi-jie hu Qi Zhao huan-Yu zhang Kuo-Zhi Xu Shi-Yu zhang Xin-Yi Pan Chang-lin lan jie Ren Xi-Chao Ruan key laboratory of Nuclear Data China Institute of Atomic EnergyBeijing 102413China School of Nuclear Science and Technology Lanzhou UniversityLanzhou 730000China Institute of Fluid Physics China Academy of Engineering PhysicsMianyang 62100China

A benchmark experiment on^(238)U slab samples was conducted using a deuterium-tritium neutron source at the china Institute of Atomic *** leakage neutron spectra within energy levels of 0.8-16 MeV at 60°and 120°were measured using the time-of-flight *** samples were prepared as rectangular slabs with a 30 cm square base and thicknesses of 3,6,and 9 *** leakage neutron spectra were also calculated using the MCNP-4C program based on the latest evaluated files of^(238)U evaluated neutron data from CENDL-3.2,ENDF/B-Ⅷ.0,JENDL-5.0,and *** on the comparison,the deficiencies and improvements in^(238)U evaluated nuclear data were *** results showed the following.(1)The calculated results for CENDL-3.2 significantly overestimated the measurements in the energy interval of elastic scattering at 60°and 120°.(2)The calculated results of CENDL-3.2 overestimated the measurements in the energy interval of inelastic scattering at 120°.(3)The calculated results for CENDL-3.2 significantly overestimated the measurements in the 3-8.5 MeV energy interval at 60°and 120°.(4)The calculated results with JENDL-5.0 were generally consistent with the measurement results.

关键词： Leakage neutron spectra Uranium D-T neutron source Evaluated nuclear data

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2023: Weather and Climate Extremes Hitting the Globe with Emerging Features

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Advances in Atmospheric Sciences 2024年第6期41卷 1001-1016页

作者： Wenxia zhang Robin CLARK Tianjun ZHOU Laurent li Chao li Juan RIVERA lixia zhang Kexin GUI Tingyu zhang lan li Rongyun PAN Yongjun CHEN Shijie TANG Xin huang Shuai hu State key laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China Met Office Hadley Centre Exeter EX13PBUK university of Chinese Academy of Sciences Beijing 100049China Laboratoire de Météorologie Dynamique CNRSSorbonne UniversitéEcole Normale SupérieureEcole PolytechniqueParis 75230France Max Planck Institute for Meteorology Hamburg 20146Germany Instituto Argentino de Nivología Glaciología Y Ciencias Ambientales(IANIGLA)CCT CONICETMendoza CP 5500Argentina Shanghai Typhoon Institute China Meteorological AdministrationShanghai 200030China Asia-Pacific Typhoon Collaborative Research Center Shanghai 201306China

Globally,2023 was the warmest observed year on record since at least 1850 and,according to proxy evidence,possibly of the past 100000 *** in recent years,the record warmth has again been accompanied with yet more extreme weather and climate events throughout the ***,we provide an overview of those of 2023,with details and key background causes to help build upon our understanding of the roles of internal climate variability and anthropogenic climate *** also highlight emerging features associated with some of these extreme *** extremes are occurring earlier in the year,and increasingly simultaneously in differing parts of the world(e.g.,the concurrent hot extremes in the Northern Hemisphere in July 2023).Intense cyclones are exacerbating precipitation extremes(e.g.,the North china flooding in July and the libya flooding in September).Droughts in some regions(e.g.,California and the Horn of Africa)have transitioned into flood *** extremes also show increasing interactions with ecosystems via wildfires(e.g.,those in Hawaii in August and in Canada from spring to autumn 2023)and sandstorms(e.g.,those in Mongolia in April 2023).Finally,we also consider the challenges to research that these emerging characteristics present for the strategy and practice of adaptation.

关键词： weather and climate extremes temperature extremes extreme precipitation drought wildfires

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Micro-mechanical analysis of dynamic processes of nanomanipulation

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Science china(Physics,Mechanics & Astronomy) 2004年第z1期47卷 88-92页

作者： hu jie, zhang yujun, li peng, wang hui, huang lan & hu yuanzhongstate key laboratory of tribology, tsinghua university, beijing 100084. china Department of Physics, tsinghua university, beijing 100084. china College of Chemistry and Molecular Engineering, Peking university, beijing 100871, china 1. State key laboratory of tribology Tsinghua University 100084 Beijing China 2. Department of Physics Tsinghua University 100084 Beijing China 3. College of Chemistry and Molecular Engineering Peking University 100871 Beijing China

In this study, atomic force microscope (AFM) tips are used as tools to cut and manipulate carbon nanotubes on various surfaces. The lateral forces acting on AFM tips during manipulation are also recorded and analyzed from the perspective of micro-mechanics. It is found that differences in surface conditions can lead to obvious increase in micro-friction between nanotube and substrate. And also due to rehybridization, carbon nanotubes present excellent resilience when undergoing different degrees of strain. Finally, carbon nanotubes can complexly deform from elastic stage to plastic stage before complete rupture.

关键词： nanomanipulation, carbon nanotubes, AFM tips, micro-mechanics.

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Degeneration Directory:a multi-omics web resource for degenerative diseases

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Protein & Cell 2024年第5期15卷 385-392页

作者： Haoteng Yan Changfa Lu Chenyang lan Si wang Weiqi zhang Zan He Jinghao hu Jiaqi Ai Guang-hui liu Shuai Ma Yuanchun Zhou Jing Qu State key laboratory of Membrane Biology Institute of ZoologyChinese Academy of SciencesBeijing 100101China State key laboratory of Stem Cell and Reproductive Biology Institute of ZoologyChinese Academy of SciencesBeijing 100101China key laboratory of Organ Regeneration and Reconstruction Institute of ZoologyChinese Academy of SciencesBeijing 100101China Advanced Innovation Center for human Brain Protection and National Clinical Research Center for Geriatric DisordersXuanwu Hospital Capital Medical UniversityBeijing 100053China Aging Translational Medicine Center International Center for Aging and CancerBeijing Municipal Geriatric Medical Research CenterXuanwu HospitalCapital Medical UniversityBeijing 100053China Computer Network Information Center Chinese Academy of SciencesBeijing 100190China The Fifth People’s Hospital of Chongqing Chongqing 400062China Aging Biomarker Consortium Beijing 100101China CAS key laboratory of Genomic and Precision Medicine Beijing Institute of GenomicsChinese Academy of Sciences and China National Center for BioinformationBeijing 100101China university of Chinese Academy of Sciences Beijing 100049China Sino-Danish College University of Chinese Academy of SciencesBeijing 101408China beijing Institute for Stem Cell and Regenerative Medicine Beijing 100101China Institute for Stem Cell and Regeneration Chinese Academy of SciencesBeijing 100101China

Background of *** degeneration refers to the gradual decline in organ function and structure deterioration that occurs during aging,which represents the greatest risk factor for various degenerative diseases,including cardiovascular diseases,neurodegenerative diseases,and osteoarthritis,etc.(Aging Biomarker et al.,2023;Becker et al.,2018;Cai et al.,2022).

关键词： Directory web Becker

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Nasal vaccination of triple-RBD scaffold protein with flagellin elicits long-term protection against SARS-CoV-2 variants including JN.1

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Signal Transduction and Targeted Therapy 2024年第5期9卷 2312-2323页

作者： Xian li Mengxin Xu Jingyi Yang li Zhou lin liu Min li Shasha wang Mei-Qin liu Zhixiang huang Zhen zhang Shuning liu Yunqi hu Haofeng lin Bowen liu Ying Sun Qingguo Wu Zheng-li Shi Ke lan Yu Chen huimin Yan Yao-Qing Chen Wuhan Institute of Virology Chinese Academy of SciencesWuhanChina Vaccine and Immunology Research Center Translational Medical Research InstituteShanghai Public Health Clinical CenterFudan UniversityShanghaiChina university of Chinese Academy of Sciences BeijingChina School of Public Health(Shenzhen) Shenzhen Campus of Sun Yat-sen UniversityShenzhenGuangdongChina State key laboratory of Virology Modern Virology Research CenterCollege of Life SciencesWuhan UniversityWuhanChina Aerosol Bio-Tech(Suzhou)Co. LTDSuzhouJiangsuChina National Medical Products Administration key laboratory for Quality Monitoring and Evaluation of Vaccines and Biological Products Sun Yat-sen UniversityGuanzhouChina

Developing a mucosal vaccine against SARS-CoV-2 is critical for combatting the ***,we investigated long-term immune responses and protection against SARS-CoV-2 for the intranasal vaccination of a triple receptor-binding domain(RBD)scaffold protein(3R-NC)adjuvanted with a flagellin protein(KFD)(3R-NC+KFDi.n).In mice,the vaccination elicited RBD-specific broad-neutralizing antibody responses in both serum and mucosal sites sustained at high level over a *** long-lasting humoral immunity was correlated with the presence of long-lived RBD-specific IgG-and IgA-producing plasma cells,alongside the Th17 and Tfh17-biased T-cell responses driven by the KFD *** upon these preclinical findings,an open labeled clinical trial was conducted in individuals who had been primed with the inactivated SARS-CoV-2(IAV)*** a favorable safety profile,the 3R-NC+KFDi.n boost elicited enduring broad-neutralizing IgG in plasma and IgA in salivary *** meet the challenge of frequently emerged variants,we further designed an updated triple-RBD scaffold protein with mutated RBD combinations,which can induce adaptable antibody responses to neutralize the newly emerging variants,including *** findings highlight the potential of the KFD-adjuvanted triple-RBD scaffold protein is a promising prototype for the development of a mucosal vaccine against SARS-CoV-2 infection.

关键词： vaccination vaccine sustained

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Taming heat with tiny pressure

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The Innovation 2024年第2期5卷 70-78页

作者： Kun zhang Zhe zhang Hailong Pan Haoyu wang Xueting Zhao Ji Qi Zhao zhang Ruiqi Song Chenyang Yu Biaohong huang Xujing li huaican Chen Wen Yin Changlong Tan Weijin hu Michael Wüubbenhorst Jiangshui Luo Dehong Yu Zhidong zhang Bing li Shenyang National laboratory for Materials Science Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China School of Materials Science and Engineering University of Science and Technology of ChinaShenyang 110016China laboratory for Soft Matter and Biophysics Department of Physics and AstronomyKU Leuven3001 LeuvenBelgium Institute of High Energy Physics Chinese Academy of SciencesBeijing 100049China Spallation Neutron Source Science Center Dongguan 523803China College of Materials Science and Engineering Sichuan UniversityChengdu 610064China School of Materials Science and Chemical Engineering Harbin University of Science and TechnologyHarbin 150080China Australian Nuclear Science and Technology Organisation Lucas HeightsNSW 2234Australia

Heat is almost *** electricity,which can be easily manipulated,the current ability to control heat is still highly limited owing to spontaneous thermal dissipation imposed by the second law of *** illumination and pressure have been used to switch endothermic/exothermic responses of materials via phase transitions;however,these strategies are less cost-effective and ***,we spectroscopically demonstrate the glassy crystal state of 2-amino-2-methyl-1,3-propanediol(AMP)to realize an affordable,easily manageable approach for thermal energy *** supercooled state of AMP is so sensitive to pressure that even several megapascals can induce crystallization to the ordered crystal,resulting in a substantial temperature increase of 48 K within 20 ***,we demonstrate a proof-of-concept device capable of programable heating with an extremely high work-to-heat conversion effi-ciency of*** delicate and efficient tuning of heat may remarkably facilitate rational utilization of waste heat.

关键词： illumination thermal rational

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Structure-based design of pan-coronavirus inhibitors targeting host cathepsin L and calpain-1

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Signal Transduction and Targeted Therapy 2024年第4期9卷 1651-1664页

作者： Xiong Xie Qiaoshuai lan Jinyi Zhao Sulin zhang Lu liu Yumin zhang Wei Xu Maolin Shao Jingjing peng Shuai Xia Yan Zhu Keke zhang Xianglei zhang Ruxue zhang jian li Wenhao Dai Zhen Ge Shulei hu Changyue Yu Jiang wang Dakota Ma Mingyue Zheng Haitao Yang Gengfu Xiao Zihe Rao Lu Lu Leike zhang Fang Bai Yao Zhao Shibo Jiang Hong liu Drug Discovery and Design Center State Key Laboratory of Drug ResearchCAS Key Laboratory of Receptor ResearchShanghai Institute of Materia MedicaChinese Academy of SciencesShanghai 201203China university of Chinese Academy of Sciences Beijing 100049China key laboratory of Medical Molecular Virology(MOE/NHC/CAMS) School of Basic Medical SciencesShanghai Institute of Infectious Disease and BiosecurityFudan UniversityShanghai 200032China Shanghai Institute for Advanced Immunochemical Studies and School of life Science and Technology ShanghaiTech UniversityShanghai 201210China State key laboratory of Virology Wuhan Institute of VirologyCenter for Biosafety Mega-ScienceChinese Academy of SciencesWuhan 430071China School of Chinese Materia Medica Nanjing University of Chinese Medicine138 Xian Lin RoadJiangsu 210023 NanjingChina School of Pharmaceutical Science and Technology Hangzhou Institute for Advanced StudyUCASHangzhou 310024China National Clinical Research Center for Infectious Disease Shenzhen Third People's HospitalShenzhen 518112China

Respiratory disease caused by coronavirus infection remains a global health *** several SARS-CoV-2-specific vaccines and direct-acting antivirals are available,their effcacy on emerging coronaviruses in the future,including SARS-CoV-2 variants,might be ***-targeting antivirals provide preventive and therapeutic strategies to overcome resistance and manage future outbreak of emerging *** L(CTSL)and calpain-1(CAPN1)are host cysteine proteases which play crucial roles in coronaviral entrance into cells and infection-related immune ***,two peptidomimetic a-ketoamide compounds,14a and 14b,were identified as potent dual target inhibitors against CTSL and *** X-ray crystal structures of human CTSL and CAPN1 in complex with 14a and 14b revealed the covalent binding of a-ketoamide groups of 14a and 14b to C25 of CTSL and C115 of *** showed potent and broad-spectrum anticoronaviral activities in vitro,and it is worth noting that they exhibited low nanomolar potency against SARS-CoV-2 and its variants of concern(VOCs)with ECso values ranging from 0.80 to 161.7 nM in various *** mechanistic exploration indicated that they exhibited anticoronaviral activity through blocking viral ***,14a and 14b exhibited good oral pharmacokinetic properties in mice,rats and dogs,and favorable safety in *** addition,both 14a and 14b treatments demonstrated potent antiviral potency against SARS-CoV-2 XBB 1.16 variant infection in a K18-hACE2 transgenic mouse *** 14b also showed effective antiviral activity against HCoV-OC43 infection in a mouse model with a final survival rate of 60%.Further evaluation showed that 14a and 14b exhibited excellent antiinflammatory effects in Raw 264.7 mouse macrophages and in mice with acute *** together,these results suggested that 14a and 14b are promising drug candidates,providing novel insight into developing pan-coronavirus inhibitors with anti

关键词： calpain overcome entrance

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基于视锥距离和自适应权重卡尔曼滤波的多传感器融合算法

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中国公路学报 2024年第3期37卷 194-203页

作者：李杰张洛维王晓燕胡铮兰海王志勇王莉北京建筑大学机电与车辆工程学院北京102616 北京物资学院信息学院北京101149 中国北方车辆研究所车辆传动重点实验室北京100072

为提升智能驾驶系统的环境感知能力,采用多模态传感器并结合人工智能技术解决单模态传感器在环境感知方面存在识别效果差、易受干扰等问题。然而,跨模态传感器间的特征匹配仍存在问题,如特征表示不一致、感知误差、延迟误差等。为解决... 详细信息

为提升智能驾驶系统的环境感知能力,采用多模态传感器并结合人工智能技术解决单模态传感器在环境感知方面存在识别效果差、易受干扰等问题。然而,跨模态传感器间的特征匹配仍存在问题,如特征表示不一致、感知误差、延迟误差等。为解决这些问题,提出一种基于视锥距离度量的方法,构建了目标匹配矩阵,使用匈牙利算法进行帧间关联匹配。并引入自适应权重调节技术优化卡尔曼滤波算法,实现了低复杂度高效的跨模态传感器融合目标检测与跟踪。对比交并比(IoU)度量和欧氏距离度量,所提方法在骑行者和行人类别中,多目标跟踪准确度(MOTA)分别提升至81.22%和58.62%。研究结果表明,融合方法的均方根误差达到了0.349 0,相比相机和激光雷达单独预测方法分别减少了30.37%和30.53%,证实了所提出的自适应权重卡尔曼滤波融合跟踪方法的准确性。在KITTI数据集上的多目标跟踪实验测试,准确度达到了88.25%,与当前主流方法性能相当。在多种天气环境下的测试结果也展示了优异的性能,车辆、行人、骑行者的目标检测准确率分别达到了96.40%、75.51%和91.87%。相较于单一传感器,该融合方法在多种路况下表现出更优越的检测效果,提高了系统的可靠性与鲁棒性,为无人驾驶技术的进一步发展奠定了坚实基础。

关键词：汽车工程多目标跟踪传感器融合视锥距离卡尔曼滤波

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Expert consensus on difficulty assessment of endodontic therapy

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International Journal of Oral Science 2024年第1期16卷 15-25页

作者： Dingming huang Xiaoyan wang Jingping liang Junqi ling Zhuan Bian Qing Yu Benxiang Hou Xinmei Chen Jiyao li ling Ye Lei Cheng Xin Xu Tao hu Hongkun Wu Bin Guo Qin Su Zhi Chen lihong Qiu Wenxia Chen Xi Wei Zhengwei huang Jinhua Yu Zhengmei lin Qi zhang Deqin Yang Jin Zhao Shuang Pan Jian Yang Jiayuan Wu Yihuai Pan Xiaoli Xie Shuli Deng Xiaojing huang lan zhang lin Yue Xuedong Zhou State key laboratory of Oral Diseases&National Center for Stomatology&National Clinical Research Center for Oral Diseases&Department of Operative Dentistry and Endodontics West China Hospital of StomatologySichuan UniversityChengduChina Department of Cariology and Endodontology Peking University School and Hospital of Stomatology&National Center of Stomatology&National Clinical Research Center for Oral Diseases&National Engineering Laboratory for Digital and Material Technology of Stomatology&Beijing Key Laboratory of Digital Stomatology&Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health&NMPA Key Laboratory for Dental MaterialsBeijingChina Department of Endodontics Shanghai Ninth People’s HospitalShanghai Jiao Tong University School of MedicineCollege of StomatologyShanghai Jiao Tong UniversityNational Clinical Research Center for Oral DiseasesNational Center for StomatologyShanghai Key Laboratory of StomatologyShanghaiChina Department of Operative Dentistry and Endodontics Hospital of StomatologyGuanghuaSchool of StomatologySun Yat-Sen University&Guangdong Provincial Key Laboratory of StomatologyGuangzhouChina The State key laboratory Breeding Base of Basic Science of Stomatology(hubei-MOST)&key laboratory of Oral Biomedicine Ministry of Education School and Hospital of StomatologyWuhan UniversityWuhanChina Department of Operative Dentistry&Endodontics School of StomatologyThe Fourth Military Medical UniversityXi’anChina Department of Endodontics Beijing Stomatological HospitalSchool of StomatologyCapital Medical UniversityBeijingChina State key laboratory of Oral Diseases&National Center for Stomatology&National Clinical Research Center for Oral Diseases&Department of Preventive Dentistry West China Hospital of StomatologySichuan UniversityChengduChina State key laboratory of Oral Diseases&National Center for Stomatology&National Clinical Research Center for Oral Diseases&Department of Geriatric dentistry West China Hospital of Stomatology

Endodontic diseases are a kind of chronic infectious oral disease. Common endodontic treatment concepts are based on the removal of inflamed or necrotic pulp tissue and the replacement by gutta-percha. However, it is very essential for endodontic treatment to debride the root canal system and prevent the root canal system from bacterial reinfection after root canal therapy(RCT). Recent research, encompassing bacterial etiology and advanced imaging techniques, contributes to our understanding of the root canal system’s anatomy intricacies and the technique sensitivity of RCT. Success in RCT hinges on factors like patients, infection severity, root canal anatomy, and treatment techniques. Therefore, improving disease management is a key issue to combat endodontic diseases and cure periapical lesions. The clinical difficulty assessment system of RCT is established based on patient conditions, tooth conditions, root canal configuration, and root canal needing retreatment, and emphasizes pre-treatment risk assessment for optimal outcomes. The findings suggest that the presence of risk factors may correlate with the challenge of achieving the high standard required for RCT. These insights contribute not only to improve education but also aid practitioners in treatment planning and referral decision-making within the field of endodontics.

关键词： anatomy difficulty treatment

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