百晓学者学者目录

徐睿

讲师,山东理工大学

精选作品

期刊论文

2026

Dynamic Restructuring of Homogeneous Cu–Ag Nanoparticles Enriches Their Interfaces to Boost C2+ Production during CO Electroreduction

Xueli Zhou, Zhongli Liu, Deyi Liu, Weifeng Rong, Shiquan Ma, Rui Xu, Baoju Wang, Jing Wang, Wei-Wei Chang, Fanfei Sun, Haofei Huang, Zhijun Zhu, Xuan Yang

ACS Catalysis

2026

Catalytic oxidative esterification over gold species supported on nitrogen-doped hollow carbon nanospheres: From single atoms to nanoclusters

Yuchao Li, Xinwei Wang, Yanxia Zheng, Chuxin Huang, Shanshan Liu, Na Zhao, Ming Wang, Rui Xu, Cuncun Zuo, Haofei Huang

Catalysis Today

2026

Structure-regulated moco metal clusters catalyst for highly selective hydrodesulfurization of waste lubricating oil

Yanxia Zheng, Xiaotong Li, Xiaotong Li, Xinwei Wang, Shanshan Liu, Yuchao Li, Ming Wang, Rui Xu, Cuncun Zuo, Haofei Huang, Qian Wang, Yansong Zhao

Catalysis Today

2025

Preparation of macro-mesoporous composite Y-type zeolite via guided synthesis to enhance hydrodesulfurization performance of waste lubricating oil

Yanxia Zheng, Na Ru Zhao, Shanshan Liu, Mingliang Ding, Yuchao Li, Ming Wang, Rui Xu, Cuncun Zuo, Haofei Huang, Yansong Zhao, Qian Wang

Microporous and Mesoporous Materials

2025

Optimized Design and Development of AuPd Catalysts for Selective Hydrogenation of Cyclopentadiene

Mingliang Ding, Yanxia Zheng, Xuanjiao Zhao, Lu Cai, Yubo Yang, Qian Wang, Yuchao Li, Ming Wang, Rui Xu, Cuncun Zuo, Haofei Huang, Guangjun Cui, Yansong Zhao

Topics in Catalysis

2025

Synergistic Effect of Gold and Hydrophobic Reagents Enhances Ester Formation from Aldehydes via One-Step Oxidative Esterification

Na Zhao, Xuanjiao Zhao, Xinyu Zhou, Tingzhen Zhang, Chuxin Huang, Shanshan Liu, Yuchao Li, Cuncun Zuo, Rui Xu, Haofei Huang, Yansong Zhao

Industrial & Engineering Chemistry Research

2024

静电纺丝在制备高性能锂离子电池负极材料中的应用

马思畅,李东阳,徐睿

《化学进展》

2024

Atom-Pd catalysts supported by hollow N-doped carbon nanospheres for ultra-efficient nitrogen reduction reaction

Chuxin Huang, Rui Xu, Yuchao Li, Haofei Huang, Yanxia Zheng, Weifeng Rong, Jianming Lin, Jihuai Wu

Electrochimica Acta

2024

Highly efficient supported bimetallic Au‐Pd catalysts for oxidative esterification of methacrolein to methyl methacrylate

Yubo Yang, Yanxia Zheng, Lu Cai, Yuchao Li, Rui Xu, Cuncun Zuo, Haofei Huang, Ming Wang, Ruihui Dai, Liping Zhang, Yansong Zhao

The Canadian Journal of Chemical Engineering

2023

Review on Performance and Preparation of Catalysts for Oxidative Esterification of Aldehydes or Alcohols to Esters

Yanxia Zheng, Chuxin Huang, Yuchao Li, Yubo Yang, Rui Xu

ChemCatChem

2023

Highly Stable Au@CeO2/MnOx Core–Shell Structured Catalyst for One-Step Oxidation Esterification of Methacrolein to Methyl Methacrylate

Yao Chen, Shuyue Li, Yuchao Li, Yanxia Zheng, Cuncun Zuo, Tingting Ge, Rui Xu, Haofei Huang, Jiutao An

Catalysis Letters

2023

Facile preparation of single-atom Ru catalysts via a two-dimensional interface directed synthesis technique for the NRR

Yao Chen, Rui Xu, Yuchao Li, Lu Cai, Yubo Yang, Yanxia Zheng, Cuncun Zuo, Haofei Huang, Zijian Wen, Qian Wang

Chemical Communications

2021

废旧锂离子电池回收利用

雷舒雅,徐睿,孙伟,徐盛明,杨越

《中国有色金属学报》

2017

铂纳米颗粒修饰的多孔卟啉基金属-有机框架化合物高效光催化产氢(英文)

王强,徐睿,王旭生,刘思得,黄远标,曹荣

《无机化学学报》

2009

(LiFePO4-AC)/Li4Ti5O12混合电池的系统优化

徐睿,唐子龙,李俊荣,张中太

《稀有金属材料与工程》

预印本

2026

Sculpting Spin-Wave Landscapes via Curvature of 2D Magnonic Crystals

Ondřej Wojewoda, Robert Kraft, Olha Bezsmertna, Oleksandr Pylypovskyi, Jose A. Fernandez Roldan, Caroline A. Ross, Rui Xu, Sergey A. Bunyaev, Ivan Soldatov, Rudolf Schäfer, Claas Abert, Gleb N. Kakazei, Michal Urbánek, Denys Makarov

arXiv preprint

2026

Modern triad for magnetic material science: geometric shape, electronic bands and spin textures

Denys Makarov, Oleksandr Pylypovskyi, Rui Xu, Carmine Ortix

arXiv preprint

2026

Cross-Material Magnetic Core Loss Prediction via Operating-Condition Matching and Partial Optimal Transport

Cong Yao, Yu Zheng, Zehao Hou, Rui Xu

arXiv preprint

2026

Intertwined atomic-nanoscale-microscale structures via intralayer anisotropic Fe-chains in the layered ferromagnet FePd2Te2

Manyu Wang, Chang Li, Bingxian Shi, Shuo Mi, Xiaoxiao Pei, Shuming Meng, Yanyan Geng, Fei Pang, Rui Xu, Li Huang, Wei Ji, Hong-Jun Gao, Peng Cheng, Le Lei, Zhihai Cheng

arXiv preprint

2026

Giant geometric nonlinear transport in inhomogeneously strained Bi$_2$Se$_3$ single crystalline slabs

Igor Veremchuk, Pavlo Makushko, Anita Guarino, Muhammad Waqee Ur Rehman, Rosalba Tatiana Fittipaldi, Tobias Kosub, Alexej Pashkin, Fabian Ganss, Oleg A. Petrenko, Proloy T. Das, Rui Xu, Rhonald Burgos Atencia, Debottam Mandal, Antonio Vecchione, Carmine Ortix, Denys Makarov

arXiv preprint

2025

Unveiling the delicate "hidden" interface conditions in WS2 flakes by advanced atomic force microscopy

Yanyan Geng, Chang Li, Shuo Mi, Manyu Wang, Xinen Han, Huiji Hu, Yunzhen Wang, Haojie You, Shumin Meng, Hanxiang Wu, Jianfeng Guo, Shiyu Zhu, Yanjun Li, Yasuhiro Sugawara, Sabir Hussain, Fei Pang, Rui Xu, Zhihai Cheng

arXiv preprint

2025

Single femtosecond laser pulse-driven ferromagnetic switching

Chen Xiao, Boyu Zhang, Xiangyu Zheng, Yuxuan Yao, Jiaqi Wei, Dinghao Ma, Yuting Gong, Rui Xu, Xueying Zhang, Yu He, Wenlong Cai, Yan Huang, Daoqian Zhu, Shiyang Lu, Kaihua Cao, Hongxi Liu, Pierre Vallobra, Xianyang Lu, Youguang Zhang, Bert Koopmans, Weisheng Zhao

arXiv preprint

2025

Realization of polytype heterostructures via delicate structural transitions from a doped-Mott insulator

Yanyan Geng, Manyu Wang, Shumin Meng, Shuo Mi, Chang Li, Huiji Hu, Jianfeng Guo, Rui Xu, Fei Pang, Wei Ji, Weichang Zhou, Zhihai Cheng

arXiv preprint

2025

Curvilinear magnonic crystal based on 3D hierarchical nanotemplates

Gianluca Gubbiotti, Olha Bezsmertna, Oleksandr V. Pylypovskyi, Rui Xu, Stephane Chiroli, Fatih Zighem, Claudia Fernandez Gonzalez, Andrea Sorrentino, David Raftrey, Daniel Wolf, Axel Lubk, Peter Fischer, Damien Faurie, Denys Makarov

arXiv preprint

2025

Real-space titration and manipulation of particle-like correlated electrons in doped Mott insulator

Yanyan Geng, Haoyu Dong, Renhong Wang, Zilu Wang, Jianfeng Guo, Shuo Mi, Yan Li, Fei Pang, Rui Xu, Li Huang, Hong-Jun Gao, Wei Ji, Shancai Wang, Weichang Zhou, Zhihai Cheng

arXiv preprint

2025

Exotic Surface Stripe Orders in Correlated Kagome Metal CsCr3Sb5

Yunxing Li, Peigen Li, Taimin Miao, Rui Xu, Yongqing Cai, Neng Cai, Bo Liang, Han Gao, Hanbo Xiao, Yongzhen Jiang, Jiefeng Cao, Fangyuan Zhu, Hongkun Wang, Jincheng Xie, Jingcheng Li, Zhongkai Liu, Chaoyu Chen, Yunwei Zhang, X. J. Zhou, Dingyong Zhong, Huichao Wang, Jianwei Huang, Donghui Guo

arXiv preprint

2025

Atomic to mesoscale hierarchical structures and magnetic states in an anisotropic layered ferromagnet FePd2Te2

Shuo Mi, Manyu Wang, Bingxian Shi, Songyang Li, Xiaoxiao Pei, Yanyan Geng, Shumin Meng, Rui Xu, Li Huang, Wei Ji, Fei Pang, Peng Cheng, Jianfeng Guo, Zhihai Cheng

arXiv preprint

2024

Chip-Scale Aligned Chiral Carbon Nanotubes Exhibiting Giant Second Harmonic Generation

Rui Xu, Jacques Doumani, Viktor Labuntsov, Nina Hong, Anna-Christina Samaha, Weiran Tu, Fuyang Tay, Elizabeth Blackert, Jiaming Luo, Mario El Tahchi, Weilu Gao, Jun Lou, Yohei Yomogida, Kazuhiro Yanagi, Riichiro Saito, Vasili Perebeinos, Andrey Baydin, Junichiro Kono, Hanyu Zhu

arXiv preprint

2024

Challenges and Opportunities in Searching for Rashba-Dresselhaus Materials for Efficient Spin-Charge Interconversion at Room Temperature

Zixu Wang, Zhizhong Chen, Rui Xu, Hanyu Zhu, Ravishankar Sundararaman, Jian Shi

arXiv preprint

2024

Filling-dependent intertwined electronic and atomic orders in the flat-band state of 1T-TaS2

Yanyan Geng, Haoyu Dong, Renhong Wang, Jianfeng Guo, Shuo Mi, Le Lei, Yan Li, Li Huang, Fei Pang, Rui Xu, Weiqiang Yu, Wei Ji, Hong-Jun Gao, Weichang Zhou, Zhihai Cheng

arXiv preprint

2024

Site-ordering/disordering-induced magnetic textures in a vdW ferromagnet by competing global and broken inversion-symmetry

Haoyan Zhang, Jianfeng Guo, Cong Wang, Le Lei, Shuo Mi, Songyang Li, Congkuan Tian, Shaohua Yan, Hanxiang Wu, Shiyu Zhu, Rui Xu, Xueyun Wang, Hechang Lei, Peng Cheng, Fei Pang, Wei Ji, Zhihai Cheng

arXiv preprint

2024

Correlated electrons of the flat band in charge density wave state of 4Hb-TaSexS2-x

Yanyan Geng, Jianfeng Guo, Fanyu Meng, Manyu Wang, Shuo Mi, Li Huang, Rui Xu, Fei Pang, Kai Liu, Shancai Wang, Hong-Jun Gao, Weichang Zhou, Wei Ji, Hechang Lei, Zhihai Cheng

arXiv preprint

2024

Real-space topology-engineering of skyrmionic spin textures in a van der Waals ferromagnet Fe3GaTe2

Shuo Mi, Jianfeng Guo, Guojing Hu, Guangcheng Wang, Songyang Li, Zizhao Gong, Shuaizhao Jin, Rui Xu, Fei Pang, Wei Ji, Weiqiang Yu, Xiaolei Wang, Xueyun Wang, Haitao Yang, Zhihai Cheng

arXiv preprint

2023

Origin of the exotic electronic states in antiferromagnetic NdSb

Peng Li, Tongrui Li, Sen Liao, Zhipeng Cao, Rui Xu, Yuzhe Wang, Jianghao Yao, Shengtao Cui, Zhe Sun, Yilin Wang, Xiangang Wan, Juan Jiang, Donglai Feng

arXiv preprint

2023

Phase Stability of Hexagonal/cubic Boron Nitride Nanocomposites

Abhijit Biswas, Rui Xu, Joyce Christiansen-Salameh, Eugene Jeong, Gustavo A. Alvarez, Chenxi Li, Anand B. Puthirath, Bin Gao, Arushi Garg, Tia Gray, Harikishan Kannan, Xiang Zhang, Jacob Elkins, Tymofii S. Pieshkov, Robert Vajtai, A. Glen Birdwell, Mahesh R. Neupane, Bradford B. Pate, Tony Ivanov, Elias J. Garratt, Pengcheng Dai, Hanyu Zhu, Zhiting Tian, Pulickel M. Ajayan

arXiv preprint

2023

Electronic Janus lattice and kagome-like bands in coloring-triangular MoTe2 monolayers

Le Lei, Jiaqi Dai, Haoyu Dong, Yanyan Geng, Feiyue Cao, Cong Wang, Rui Xu, Fei Pang, Fangsen Li, Zhihai Cheng, Guang Wang, Wei Ji

arXiv preprint

2023

Controllable CVD-Growth of 2D Cr5Te8 Nanosheets with Thickness-Dependent Magnetic Domains

Hanxiang Wu, Jianfeng Guo, Suonan Zhaxi, Hua Xu, Shuo Mi, Le Wang, Shanshan Chen, Rui Xu, Wei Ji, Fei Pang, Zhihai Cheng

arXiv preprint

2023

Non-linear optics at twist interfaces in h-BN/SiC heterostructures

Abhijit Biswas, Rui Xu, Gustavo A. Alvarez, Jin Zhang, Joyce Christiansen-Salameh, Anand B. Puthirath, Kory Burns, Jordan A. Hachtel, Tao Li, Sathvik Ajay Iyengar, Tia Gray, Chenxi Li, Xiang Zhang, Harikishan Kannan, Jacob Elkins, Tymofii S. Pieshkov, Robert Vajtai, A. Glen Birdwell, Mahesh R. Neupane, Elias J. Garratt, Tony Ivanov, Bradford B. Pate, Yuji Zhao, Hanyu Zhu, Zhiting Tian, Angel Rubio, Pulickel M. Ajayan

arXiv preprint

2023

Emergent Electronic Kagome Lattice in Correlated Charge-Density-Wave State of 1T-TaS$_2$

Haoyu Dong, Peihan Sun, Le Lei, Yanyan Geng, Jianfeng Guo, Yan Li, Li Huang, Rui Xu, Fei Pang, Wei Ji, Weichang Zhou, Zheng Liu, Zhong-Yi Lu, Hong-Jun Gao, Kai Liu, Zhihai Cheng

arXiv preprint

2022

Twisted Angle-Dependent Work Functions in CVD-Grown Twisted Bilayer Graphene by Kelvin Probe Force Microscopy

Shangzhi Gu, Wenyu Liu, Guoyu Xian, Shuo Mi, Jiangfeng Guo, Songyang Li, Le Lei, Haoyu Dong, Rui Xu, Fei Pang, Shanshan Chen, Haitao Yang, Zhihai Cheng

arXiv preprint

2022

Hysteretic Electronic Phase Transitions in Correlated Charge-Density-Wave State of 1T-TaS2

Geng Yanyan, Lei Le, Dong Haoyu, Guo Jianfeng, Mi Shuo, Li Yan, Huang Li, Pang Fei, Xu Rui, Zhou Weichang, Liu Zheng, Ji Wei, Cheng Zhihai

arXiv preprint

2022

Properties and device performance of BN thin films grown on GaN by pulsed laser deposition

Abhijit Biswas, Mingfei Xu, Kai Fu, Jingan Zhou, Rui Xu, Anand B. Puthirath, Jordan A. Hachtel, Chenxi Li, Sathvik Ajay Iyengar, Harikishan Kannan, Xiang Zhang, Tia Gray, Robert Vajtai, A. Glen Birdwell, Mahesh R. Neupane, Dmitry A. Ruzmetov, Pankaj B. Shah, Tony Ivanov, Hanyu Zhu, Yuji Zhao, Pulickel M. Ajayan

arXiv preprint

2021

Toplayer-Dependent Crystallographic Orientation Imaging in the Bilayer Two-Dimensional Materials with Transverse Shear Microscopy

Sabir Hussain, Rui Xu, Kunqi Xu, Le Lei, Shuya Xing, Jianfeng Guo, Haoyu Dong, Adeel Liaqat, Rashid Iqbal, Muhammad Ahsan Iqbal, Shangzhi Gu, Feiyue Cao, Yan Jun Li, Yasuhiro Sugawara, Fei Pang, Wei Ji, Liming Xie, Shanshan Chen, Zhihai Cheng

arXiv preprint

2021

Epitaxial fabrication of AgTe monolayer on Ag(111) and the sequential growth of Te film

Haoyu Dong, Le Lei, Shuya Xing, Jianfeng Guo, Feiyue Cao, Shangzhi Gu, Yanyan Geng, Shuo Mi, Hanxiang Wu, Yan Jun Li, Yasuhiro Sugawara, Fei Pang, Wei Ji, Rui Xu, Zhihai Cheng

arXiv preprint

2020

Local probe of the interlayer coupling strength of few-layers SnSe by contact-resonance atomic force microscopy

Zhiyue Zheng, Yuhao Pan, Tengfei Pei, Rui Xu, Kunqi Xu, Le Lei, Sabir Hussain, Xiaojun Liu, Lihong Bao, Hong-Jun Gao, Wei Ji, Zhihai Cheng

arXiv preprint

2017

Single-Shot 3D Diffractive Imaging of Core-Shell Nanoparticles with Elemental Specificity

Alan Pryor, Arjun Rana, Rui Xu, Jose A. Rodriguez, Yongsoo Yang, Marcus Gallagher-Jones, Huaidong Jiang, Jaehyun Park, Sunam Kim, Sangsoo Kim, Daewong Nam, Yu Yue, Jiadong Fan, Zhibin Sun, Bosheng Zhang, Dennis F. Gardner, Carlos Sato Baraldi Dias, Yasumasa Joti, Takaki Hatsui, Takashi Kameshima, Yuichi Inubushi, Kensuke Tono, Jim Yang Lee, Makina Yabashi, Changyong Song, Tetsuya Ishikawa, Henry C. Kapteyn, Margaret M. Murnane, Jianwei Miao

arXiv preprint

2016

Deciphering chemical order/disorder and material properties at the single-atom level

Yongsoo Yang, Chien-Chun Chen, M. C. Scott, Colin Ophus, Rui Xu, Alan Pryor, Li Wu, Fan Sun, W. Theis, Jihan Zhou, Markus Eisenbach, Paul R. C. Kent, Renat F. Sabirianov, Hao Zeng, Peter Ercius, Jianwei Miao

arXiv preprint

2016

Nanomaterial datasets to advance tomography in scanning transmission electron microscopy

Barnaby D. A. Levin, Elliot Padgett, Chien-Chun Chen, M. C. Scott, Rui Xu, Wolfgang Theis, Yi Jiang, Yongsoo Yang, Colin Ophus, Haitao Zhang, Don-Hyung Ha, Deli Wang, Yingchao Yu, Hector D. Abruna, Richard D. Robinson, Peter Ercius, Lena F. Kourkoutis, Jianwei Miao, David A. Muller, Robert Hovden

arXiv preprint

2015

Landau Quantization and Fermi Velocity Renormalization in Twisted Graphene Bilayers

Long-Jing Yin, Jia-Bin Qiao, Wei-Jie Zuo, Wei Yan, Rui Xu, Rui-Fen Dou, Jia-Cai Nie, Lin He

arXiv preprint

2015

Three-dimensional coordinates of individual atoms in materials revealed by electron tomography

Rui Xu, Chien-Chun Chen, Li Wu, M. C. Scott, W. Theis, Colin Ophus, Matthias Bartels, Yongsoo Yang, Hadi Ramezani-Dakhel, Michael R. Sawaya, Hendrik Heinz, Laurence D. Marks, Peter Ercius, Jianwei Miao

arXiv preprint

2014

Two-dimensional Quasi-Freestanding Molecular Crystals for High-Performance Organic Field-Effect Transistors

Daowei He, Yuhan Zhang, Qisheng Wu, Rui Xu, Haiyan Nan, Junfang Liu, Jianjun Yao, Zilu Wang, Shijun Yuan, Yun Li, Yi Shi, Jinlan Wang, Zhenhua Ni, Lin He, Feng Miao, Fengqi Song, Hangxun Xu, K. Watanabe, T. Taniguchi, Jian-Bin Xu, Xinran Wang

arXiv preprint

2014

Unveiling the Structural Origin of the High Carrier Mobility of a Molecular Monolayer on Boron Nitride

Rui Xu, Daowei He, Yuhan Zhang, Bing Wu, Fengyuan Liu, Lan Meng, Jun-Fang Liu, Qisheng Wu, Yi Shi, Jinlan Wang, Jia-Cai Nie, Xinran Wang, Lin He

arXiv preprint

2014

Grain rotation and lattice deformation during photoinduced chemical reactions revealed by in-situ X-ray nanodiffraction

Zhifeng Huang, Matthias Bartels, Rui Xu, Markus Osterhoff, Sebastian Kalbfleisch, Michael Sprung, Akihiro Suzuki, Yukio Takahashi, Thomas N. Blanton, Tim Salditt, Jianwei Miao

arXiv preprint

2014

Electronic Structures and Their Landau Quantizations in Twisted Graphene Bilayer and Trilayer

Long-Jing Yin, Jia-Bin Qiao, Wei Yan, Rui Xu, Rui-Fen Dou, Jia-Cai Nie, Lin He

arXiv preprint

2014

Direct Probing Stacking Order and Electronic Spectrum of Rhombohedral Trilayer Graphene with Scanning Tunneling Microscopy

Rui Xu, Long-Jing Yin, Jia-Bin Qiao, Ke-Ke Bai, Jia-Cai Nie, Lin He

arXiv preprint

2013

Single-shot 3D structure determination of nanocrystals with femtosecond X-ray free electron laser pulses

Rui Xu, Huaidong Jiang, Changyong Song, Jose A. Rodriguez, Zhifeng Huang, Chien-Chun Chen, Daewoong Nam, Jaehyun Park, Marcus Gallagher-Jones, Sangsoo Kim, Sunam Kim, Akihiro Suzuki, Yuki Takayama, Tomotaka Oroguchi, Yukio Takahashi, Jiadong Fan, Yunfei Zou, Takaki Hatsui, Yuichi Inubushi, Takashi Kameshima, Koji Yonekura, Kensuke Tono, Tadashi Togashi, Takahiro Sato, Masaki Yamamoto, Masayoshi Nakasako, Makina Yabashi, Tetsuya Ishikawa, Jianwei Miao

arXiv preprint

2012

Experimental realization of single electron tunneling diode based on vertical graphene two-barrier junction

Rui Xu, Ke-Ke Bai, Jia-Cai Nie, Lin He

arXiv preprint

2011

Dielectric layer dependent surface plasmon effect of metallic nanoparticles on silicon substrate

Xu Rui, Wang Xiao-Dong, Liu Wen, Xu Xiao-Na, Li Yue-Qiang, Ji An, Yang Fu-Hua, Li Jin-Min

arXiv preprint

2011

Magnetic Core-Shell Structure and Proximity Effect in 7 nm Single-Crystal Co3O4 Nanowires

Ping Lv, Yan Zhang, Rui Xu, Jia-Cai Nie, Lin He

arXiv preprint

2011

Effect of Exchange-type Zero-bias Anomaly on Single Electron Tunnelling of Au Nanoparticles

Rui Xu, Yi Sun, Hui Yan, Ji-Yong Yang, Lin He, Jia-Cai Nie, Yadong Li

arXiv preprint

2011

Electron tomography at 2.4 Å resolution

M. C. Scott, Chien-Chun Chen, Matthew Mecklenburg, Chun Zhu, Rui Xu, Peter Ercius, Ulrich Dahmen, B. C. Regan, Jianwei Miao

arXiv preprint

此主页由公开资料整理,尚未经学者本人认领。