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Ti_(3)C_(2)T_(x) MXene in-situ transformed Li_(2)TiO_(3) interface layer enabling 4.5 V-LiCoO_(2)/sulfide all-solid-state lithium batteries with superior rate capability and cyclability

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Chinese Chemical Letters 2024年第6期35卷 195-200页

作者： Yaping Wang Pengcheng Yuan zeyuan Xu Xiong-Xiong Liu Shengfa Feng Mufan cao Chen cao Xiaoqiang Wang Long Pan Zheng-Ming Sun Key Laboratory of Advanced Metallic Materials of Jiangsu Province School of Materials Science and EngineeringSoutheast UniversityNanjing 211189China CALB Technology Co. Ltd.Changzhou 213200China

All-solid-state lithium batteries(ASSLBs)based on sulfide electrolytes promise next-generation energy storage with high energy density and ***,the sulfide electrolytes suffer from phase instability and sluggish interfacial charge transport when pairing with layered oxide cathodes at high ***,a simple and efficient strategy is proposed using two-dimensional Ti_(3)C_(2)T_(x)MXene as starting material to in-situ construct a 15 nm Li_(2)TiO_(3) layer on a typical oxide cathode,LiCoO_(2).The in-situ transformation of Ti_(3)C_(2)T_(x)into Li_(2)TiO_(3) layer occurs at a low temperature of 500℃,avoiding the phase deterioration of LiCoO_(2).The thin Li_(2)TiO_(3) layer is Li^(+)conducting and electrochemically stable,thereby preventing the interfacial decomposition of sulfide electrolytes induced by LiCoO_(2) at high voltages and facilitating Li+transport at the ***,Li_(2)TiO_(3) can stabilize the layer structure of LiCoO_(2) at high ***,the sulfide-based ASSLB using LiCoO_(2)@Li_(2)TiO_(3) cathode can operate stably at a high voltage of up to 4.5 V(***+/Li),delivering an outstanding initial specific discharge capacity of 138.8 m Ah/g with a high capacity retention of 86.2% after 100 cycles at 0.2 *** in-situ transformation strategy may also apply to other MXenes,offering a general approach for constructing other advanced lithiated coatings for oxide cathodes.

关键词： Solid sulfide electrolyte Oxide cathode MXene In-situ transformation Li_(2)TiO_(3) interfacial layer

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企业数字化转型与全球价值链参与

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管理工程学报 2025年第1期39卷 15-31页

作者：李鑫佟岩曹丰北京理工大学管理学院湖南大学工商管理学院

本文立足“逆全球化”时代数字经济发展迅速的现实背景,利用2010年至2016年中国A股上市公司与中国海关数据库的合并数据,实证检验了企业数字化转型对其全球价值链参与的影响。研究表明,数字化转型能够促进企业更好地融入全球价值链,并... 详细信息

本文立足“逆全球化”时代数字经济发展迅速的现实背景,利用2010年至2016年中国A股上市公司与中国海关数据库的合并数据,实证检验了企业数字化转型对其全球价值链参与的影响。研究表明,数字化转型能够促进企业更好地融入全球价值链,并且该结论在经过一系列稳健性检验后依然成立。影响机制检验发现,企业数字化转型对全球价值链嵌入的提升作用主要通过缓解融资约束和提高生产效率来实现。异质性检验结果表明,当数字化转型基础较好、劳动力需求较高以及成本加成较低时,企业数字化转型对全球价值链参与的影响更为凸显。本文丰富和拓展了企业数字化转型影响机制与经济后果的研究框架,为企业更好地融入全球价值链分工体系、实现高质量发展找到了新的经验证据,对于企业数字化相关政策的制定与调整也具有一定的参考价值。

关键词：数字化转型全球价值链嵌入融资约束生产效率

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A Method of Human-Like Compliant Assembly Based on Variable Admittance Control for Space Maintenance

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Cyborg and Bionic Systems 2023年第1期4卷 106-120页

作者： Xiaolei cao Xiao Huang Yan Zhao zeyuan Sun Hui Li Zhihong Jiang Marco Ceccarelli School of Mechatronical Engineering Advanced Innovation Center for Intelligent Robots and SystemsKey Laboratory of Biomimetic Robots and Systems of Chinese Ministry of EducationBeijing Institute of TechnologyBeijing 100081China China Northern Vehicle Research Institute Beijing 100071China Department of Industrial Engineering University of Rome Tor VergataVia del Politecnico 100133 RomaItaly

On-orbit assembly has become a crucial aspect of space operations,where the manipulator frequently and directly interacts with objects in a complex assembly *** traditional manipulator control has limitations in adapting to diverse assembly tasks and is vulnerable to vibration,leading to assembly *** address this issue,we propose a human-like variable admittance control method based on the variable damping characteristics of the human *** collecting the velocity and contact force of human arm operations in assembly,we analyze the damping change of human arm and establish the active compliance model based on S-type damping variation rule in ***,3 passive contact models are proposed between the end of the human arm and the environment:one-sided bevel contact,both sides bevel contact,and pin-hole *** the basis of these active and passive models,a typical space assembly task for a robot is designed,and a human-like variable admittance controller is established and ***,we build a ground verification platform and complete different assembly tasks,thereby successfully verifying the safety,robustness,and adaptability of the human-like variable admittance control method.

关键词： robot operations passive

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Rational design of lipid-activatable NIR-II probes for precisely imaging atherosclerotic plaque

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Science China Chemistry 2025年

作者： Xinyu Xu Yuan Ma Hui cao Li Xu Haoming Chen Sulai Liu Wei Sun Guosheng Song Xiaobing Zhang State Key Laboratory for Chemo/Bio-Sensing and Chemometrics College of Chemistry and Chemical EngineeringHunan University Department of Hepatobiliary Surgery/Central Laboratory Hunan Provincial People's Hospital (The First Affiliated Hospital of Hunan Normal University) Department of Cardiology the First Affiliated Hospital of Nanjing Medical University Key Laboratory of Targeted Intervention of Cardiovascular Disease Collaborative Innovation Center for Cardiovascular Disease Translational MedicineNanjing Medical University Shenzhen Research Institute of Hunan University

Atherosclerosis(AS) is a prevalent condition associated with cardiovascular and cerebrovascular diseases, featuring lipid-laden plaque; however, the insufficient resolution and low sensitivity of traditional medical imaging techniques limit their application in lipid imaging. Currently, the second near-infrared(NIR-II) fluorescence imaging offers promising sensitivity and convenience. However, existing probes have limitations in terms of signal-to-background ratio, penetration depth, and tissue scattering. Herein, we use a molecular regulatory strategy to design a lipid-activatable probe Rh-965 with high specificity and NIR-II emission for improved imaging potential in deep tissues. The potential of Rh-965 for imaging plaque lipids in mice with AS is demonstrated by localizing carotid artery plaques using NIR-II imaging. The development of more stable lipid-activated NIR-II probes can significantly enhance atherosclerosis diagnosis and facilitate in vivo imaging in deeper tissues.

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计吏、“贡士”与东汉贡献秩序的演变——以“举计吏”为线索

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古代文明（中英文） 2025年第1期19卷 94-105,M0006页

作者：曹天江中央民族大学历史文化学院北京100081

东汉时期流行起来的“举计吏”一语,将上计与察举相联系,为观察东汉上计事务与贡献秩序的关系及其意义提供了视点。细考史料所见郡国上计案例,可知上计与察举的前途相似,但当时并未将计吏设为正式的察举科目。与西汉相比,东汉上计对计... 详细信息

东汉时期流行起来的“举计吏”一语,将上计与察举相联系,为观察东汉上计事务与贡献秩序的关系及其意义提供了视点。细考史料所见郡国上计案例,可知上计与察举的前途相似,但当时并未将计吏设为正式的察举科目。与西汉相比,东汉上计对计吏的能力要求不再突出,计吏与长官的亲厚程度及其才学声望等成为更重要的因素,其人选也转向高级郡吏与布衣名士,并被赋予了地方“人才”的色彩。进而,郡国不再将上计之事推托给小吏,而是主动推荐计吏。加上察举诸生“与计偕”规定的长期执行及东汉贡献礼仪的日益完备,上计与察举在事务与观念上逐渐合流,最终,计吏被纳为“贡士”之选,统合贡献秩序中,彰显郡国对朝廷的属从关系,象征王朝国家对全国上下人、事、物全面的掌控。

关键词：上计贡士贡献秩序举计吏察举

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Measurement of proton quenching in a LAB-based liquid scintillator

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Radiation Detection Technology and Methods 2019年第1期3卷 13-18页

作者： Masheng Yang zeyuan Yu Jun cao Xilei Sun Boxiang Yu Guangpeng An Institute of High Energy Physics Beijing 100049China University of Chinese Academy of Sciences Beijing 100049China

Background The linear alkylbenzene has been recently used as the solvent of liquid scintillator by several neutrino *** nonlinear energy response induced by the ionization quenching is critical in this kind of *** empirical model proposed by Birks is commonly used to describe the quenching effect;however,recently,the parameter kB in the model is found to be particle *** To improve the understanding of proton quenching in LS *** A 14 MeV D–T compact neutron generator is deployed which can provide recoil protons with kinetic energies ranging from 0.5 to 13 MeV in *** The parameter kB is extracted by fitting the data to the Birks’law prediction with careful examination of systematic *** The measurement will contribute to the in-depth understanding of the energy nonlinearity in liquid scintillator detectors.

关键词： Proton Quenching effect Birks’law

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人工智能文生视频大模型Sora对科技伦理的冲击及应对

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新疆师范大学学报（哲学社会科学版） 2025年第1期46卷 142-148页

作者：曹贤平南昌工程学院马克思主义学院江西南昌330099

Sora的推出是人类社会发展和人工智能进步的标志性事件,凸显出生成式人工智能的强大功能。Sora的爆火离不开规模化数据、先进算法和规模化算力,其内在运行机制紧扣文本输入、文本编码、视频生成和视频输出的基本逻辑,在人类社会具有广... 详细信息

Sora的推出是人类社会发展和人工智能进步的标志性事件,凸显出生成式人工智能的强大功能。Sora的爆火离不开规模化数据、先进算法和规模化算力,其内在运行机制紧扣文本输入、文本编码、视频生成和视频输出的基本逻辑,在人类社会具有广阔应用前景。但Sora在技术更迭和运用过程中可能给科技伦理带来诸如冲击人的主体性地位、导致人们认知的混乱性、冲击伦理规则的适用性、冲击数字隐私伦理并造成数字歧视等风险。因此,要坚持以人为本,运用技术手段增强Sora的数据筛选力度和敏捷治理效度,防止数据泄露和侵犯隐私,进行伦理设计实现科技伦理与时俱进,辅之必要的教育培训,以此提升全民运用人工智能技术的能力。

关键词： Sora 生成式人工智能科技伦理

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边界与无疆(创作谈)

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当代文坛 2025年第1期 71-73页

作者：曹文轩北京大学中文系

什么样的作品可以走向世界?或者说:走向世界的路径是什么?作为还算是幸运的中国作家,我的一些作品去了巴黎、伦敦、柏林、纽约、罗马、莫斯科、马德里、开罗、东京……我的作品被翻译为英、法、德、俄、意大利、西班牙、日、韩、阿拉伯... 详细信息

什么样的作品可以走向世界?或者说:走向世界的路径是什么?作为还算是幸运的中国作家,我的一些作品去了巴黎、伦敦、柏林、纽约、罗马、莫斯科、马德里、开罗、东京……我的作品被翻译为英、法、德、俄、意大利、西班牙、日、韩、阿拉伯、波斯、瑞典、葡萄牙等40余种语言,共计230余册,在世界各地出版、发行,并获得了一些较为重要的国际奖项。我不太能肯定这样的状况是否可以算得上我们的文学正从“走出去”往“走进去”过渡。

关键词：走向世界创作谈葡萄牙国际奖项马德里

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Aperiodically semi-intermittent-based fixed-time stabilization and synchronization of delayed discontinuous inertial neural networks

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Science China(Information Sciences) 2025年第1期 238-254页

作者： Guodong ZHANG Jinde cao School of Mathematics and Statistics South-Central Minzu University School of Mathematics Southeast University

This article concentrates on the fixed-time stabilization(FS) and fixed-time synchronization(FTS) of discontinuous inertial neural networks(DINNs) with distributed delays. Using mathematical induction to a new differential equality, a novel fixed-time stability lemma is constructed. Then, by designing an aperiodically semi-intermittent switching control and combining it with the theory of nonsmooth analysis, some novel criteria on the FS and FTS of DINNs are obtained. Unlike the methods used in most existing studies, the FS and FTS results are structured using the newly proposed fixed-time stability lemma and the nonreduced-order approach, resulting in broader practical applications and strengthening the scientific quality of the derived results. Lastly, numerical simulations and applications proffer the effectiveness of the established FS and FTS criteria.

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Laser assisted phase transformation of carbon-based transition metal oxide electrode for high-performance supercapacitor application

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Science China Chemistry 2025年

作者： Mingzhen Xiu Jianghong Zhang Yu Lu Xun cao Kang Huang Siyu Zhu Bowei Zhang Yu Liang Chunwang Zhao Junsheng Wu Yizhong Huang School of Materials Science and Engineering Nanyang Technological University Energy Research Institute Interdisciplinary Graduate Programme Nanyang Technological University Institute of Sustainability for Chemicals Energy and Environment Agency for Science Technology and ResearchSingapore Institute of Advanced Materials and Technology University of Science and Technology Beijing School of Materials Science and Technology Shenyang University of Chemical Technology School of Materials Science and Hydrogen Energy Foshan University

Transitional metal oxides have a wide range of applications due to their superior *** enhanced performance of metal oxide relies on their desirable oxidation states,which is challenging to achieve and requires complex *** study demonstrates a facile strategy enabling rapid phase transformation of transition metal *** approach involves synthesis of a tetragonal Mn3O4/carbon cloth composite using the liquid plasma discharge deposition （LPDD） technique,followed by laser irradiation with the presence of ethylene glycol under an N2gas *** resulting face-centered cubic MnO/carbon cloth electrode exhibits an excellent capacitance of 1,125 F g-1at 2 A g-1,with remarkable capacitance retention of 95%after10,000 *** approach can be extended to other transition metals including Co,Cu,Cr,Fe,Ni,and *** simulations reveal the significance of ethylene glycol and the underlying mechanism associated with the phase transformation of transition metal *** present study offers a powerful technique for the phase transformation of transition metal oxide which can guide the development of new electrode materials with enhanced electrochemical properties for high-performance energy storage applications.

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