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Comments on “Sidewinding with Minimal Slip: Snake and Robot Ascent of Sandy Slopes”

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机器人 2015年第2期37卷 254-256页

作者： LIU Jinguo GAO Yang WANG Yuechao MA Shugen luo yifan State Key Laboratory of Robotics Shenyang Institute of Automation Chinese Academy of Sciences STAR Lab Surrey Space Centre University of Surrey Department of Robotics College of Science and Engineering Ritsumeikan University

Marvi et al(Science,2014,vol.346,p.224)concluded a sidewinder rattlesnake increases the body contact length with the sand when granular incline angle *** also claimed the same principle should work on robotic snake *** have evidence to prove that this conclusion is only partial in describing the snake body-sand *** should be three phases that fully represent the snake locomotion behaviors during ascent of sandy slopes,namely lifting,descending,and *** snake body-sand interaction during the descending and ceasing phases helps with the climbing while such interaction during the lifting phase in fact contributes resistance.

关键词：机器人设计工业机器人应用

Carbon Footprint Analysis for Baby Strollers

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Chinese Journal of Population,Resources and Environment 2012年第4期10卷 16-21页

作者： Yu Ang luo yifan State Key Laboratory of Marine Environmental Science(Xiamen University) Environmental Science Research Center Xiamen University

The increasing awareness of climate change has led organizations to demand a standard procedure to measure and communicate greenhouse gas(GHG) emissions linked to their products or *** publicly available specification PAS 2050 has been developed in response to broad community and industry desire for a consistent method-carbon footprint for assessing the life cycle GHG emissions of goods and ***,this paper illustrates the implementation of carbon footprint for a baby stroller in accordance with PAS 2050.A fial value of 321 kg per one stroller including package was ***,the study led to identify raw materials production of the stroller as the main source of GHS emissions where efforts need to focus for emission reduction *** case study is hoped to be a starting point for organizations to benefit from the increasing application of carbon footprint assessment.

关键词： baby stroller carbon footprint greenhouse gas emis- sions life cycle PAS 2050

Metal oxide semiconductor gas sensing materials for early lung cancer diagnosis

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Journal of Advanced Ceramics 2023年第2期12卷 207-227页

作者： Xiaoxi HE Hongfeng CHAI yifan luo Lingfeng MIN Marc DEBLIQUY Chao ZHANG School of Mechanical Engineering Yangzhou UniversityYangzhou 225127China Department of Respiratory and Critical Care Medicine Northern Jiangsu People’s Hospital Affiliated to Yangzhou UniversityYangzhou 225001China Service de Science des Matériaux FacultéPolytechniqueUniversitéde MonsMons 7000Belgium

The urgency of early lung cancer(LC)diagnosis and treatment has been more and more *** breath analysis using gas sensors is a promising way to find out if someone has LC due to its low-cost,non-invasive,and real-time monitoring compared with traditional invasive diagnostic *** sensor-based gas detection techniques,metal oxide semiconductor’s gas sensors are one of the most important *** review presents the-state-of-art in metal oxide gas sensors for the diagnosis of early ***,the exhaled breath biomarkers are described with emphasis on the concentration of abnormal volatile organic compounds(VOCs)caused by the metabolic process of LC ***,the research status of metal oxide gas sensors in LC diagnosis is *** sensing performance and enhancement strategy of biomarkers provided by metal oxide semiconductor materials are *** effective way to improve VOC detection performance is to build a gas sensor *** the same time,various gas sensors combined with self-powered techniques are mentioned to display a broad development prospect in breath ***,metal oxide gas sensor-based LC diagnosis is prospected.

关键词： gas sensors metal oxides exhaled breath analysis lung cancer(LC)diagnosis

Trimetallic Metal-Organic Framework Nanoframe Superstructures: A Stress-Buffering Architecture Engineering of Anode Material toward Boosted Lithium Storage Performance

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Energy & Environmental Materials 2023年第1期6卷 289-299页

作者： Jia Lin Chao Xu Man Lu Xiaoming Lin Zeeshan Ali Chenghui Zeng Xuan Xu and yifan luo Key Laboratory of Theoretical Chemistry of Environment Ministry of EducationGuangzhou Key Laboratory of Materials for Energy Conversion and StorageSchool of ChemistrySouth China Normal UniversityGuangzhou 510006China School of Chemical and Materials Engineering(SCME) National University of Sciences and Technology(NUST)Islamabad 44000H-12Pakistan College of Chemistry and Chemical Engineering Key Laboratory of Functional Small Organic MoleculeMinistry of Education and Jiangxi’s Key Laboratory of Green ChemistryJiangxi Normal UniversityNanchang 330022China

Metal-organic frameworks(MOFs)can serve as prevailing anodes for lithium-ion batteries,due to their multiple redox-active sites and prominent structural ***,the poor electronic conductivity and inferior cyclability hinder their further ***,a synthetic methodology for trimetallic Fe-Co-Ni MOFs with nanoframe superstructures architecture(Fe-Co-Ni NFSs)via structural evolution is proposed for versatile anode materials for lithium *** to optimal compositional and structural optimization,the Fe-Co-Ni NFSs achieve exceptional electrochemical performance with superior specific capacity(1030 mAh g^(−1) at 0.1 A g^(−1)),outstanding rate capacity(414 mAh g^(−1) at 2 A g^(−1)),and prolonged cyclability(489 mAh g^(−1) upon 1000 cycles at 1 A g^(−1)).Both experimental and theoretical investigations reveal that the multi-component metal centers could boost electronic conductivity,confer multiple active sites,and energetically favor Li adsorption ***,the nanoframe superstructures of Fe-Co-Ni NFSs could facilitate stress-buffering effect on volumetric expansion and prevent electrode pulverization,further improving the lithium storage *** work envisions a meticulous protocol for high-performance MOF anode materials for lithium-ion batteries.

关键词： anode DFT calculation lithium storage stress-buffering architecture trimetallic metal-organic framework

Urchin-like Na-doped zinc oxide nanoneedles for low-concentration and exclusive VOC detections

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Journal of Advanced Ceramics 2024年第4期13卷 507-517页

作者： Yiwen Zhou yifan luo Zichen Zheng Kewei Liu Xiaoxi He Kaidi Wu Marc Debliquy Chao Zhang College of Mechanical Engineering Yangzhou UniversityYangzhou 225127China Material Science Department University of MonsMons 7000Belgium

In the early-stage diagnosis of lung cancer,the low-concentration(<5 ppm)volatile organic compounds(VOCs)are extensively identified to be the biomarkers for breath ***,the urchin-like sodium(Na)-doped zinc oxide(ZnO)nanoneedles were synthesized through a hydrothermal strategy with the addition of different contents of citric *** Na-doped ZnO gas sensor with a 3:1 molar ratio of Na^(+)and citric acid showed outstanding sensing properties with an optimal selectivity to various VOCs(formaldehyde(HCOH),isopropanol,acetone,and ammonia)based on working temperature ***,significantly enhanced sensitivity(21.3@5 ppm)compared with pristine ZnO(~7-fold),low limit of detection(LOD)(298 ppb),robust humidity resistance,and long-term stability of formaldehyde sensing performances were obtained,which can be attributed to the formation of a higher concentration of oxygen vacancies(20.98%)and the active electron ***,the improved sensing mechanism was demonstrated by the exquisite band structure and introduction of the additional acceptor level,which resulted in the narrowed bandgap of ZnO.

关键词： zinc oxide(ZnO) heterovalent ions doping citric acid gas sensor volatile organic compound(VOC)detection lungcancer

A neutrophil-biomimic platform for eradicating metastatic breast cancer stem-like cells by redox microenvironment modulation and hypoxia-triggered differentiation therapy

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Acta Pharmaceutica Sinica B 2023年第1期13卷 298-314页

作者： Yongchao Chu yifan luo Boyu Su Chao Li Qin Guo Yiwen Zhang Peixin Liu Hongyi Chen Zhenhao Zhao Zheng Zhou Yu Wang Chen Jiang Tao Sun Key Laboratory of Smart Drug Delivery(Ministry of Education) Minhang HospitalState Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain ScienceDepartment of PharmaceuticsSchool of PharmacyResearch Center on Aging and MedicineFudan UniversityShanghai 201203China

Metastasis accounts for 90%of breast cancer deaths,where the lethality could be attributed to the poor drug accumulation at the metastatic *** tolerance to chemotherapy induced by breast cancer stem cells(BCSCs)and their particular redox microenvironment further aggravate the therapeutic *** be specific,therapy-resistant BCSCs can differentiate into heterogeneous tumor cells constantly,and simultaneously dynamic maintenance of redox homeostasis promote tumor cells to retro-differentiate into stem-like state in response to cytotoxic ***,we develop a specifically-designed biomimic platform employing neutrophil membrane as shell to inherit a neutrophil-like tumor-targeting capability,and anchored chemotherapeutic and BCSCs-differentiating reagents with nitroimidazole(NI)to yield two hypoxia-responsive prodrugs,which could be encapsulated into a polymeric nitroimidazole *** platform can actively target the lung metastasis sites of triple negative breast cancer(TNBC),and release the escorted drugs upon being triggered by the hypoxia *** the responsiveness,the differentiating agent could promote transferring BCSCs into non-BCSCs,and simultaneously the nitroimidazole moieties conjugated on the polymer and prodrugs could modulate the tumor microenvironment by depleting nicotinamide adenine dinucleotide phosphate hydrogen(NADPH)and amplifying intracellular oxidative stress to prevent tumor cells retro-differentiation into *** combination,the BCSCs differentiation and tumor microenvironment modulation synergistically could enhance the chemotherapeutic cytotoxicity,and remarkably suppress tumor growth and lung ***,this work can provide a new insight in to comprehensively treat TNBC and lung metastasis using a versatile platform.

关键词： Metastasis Breast cancer Neutrophil Hypoxia Cancer stem cell Glutathione Reactive oxygen species Nitroimidazole

Research on Formation Generation Algorithm of Hypersonic Gliding Vehicle Based on Fixed-time Sliding Mode Control

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Research on Formation Generation Algorithm of Hypersonic Gli...

人工智能生成内容赋能图书馆知识服务的路径研究

第43届中国控制会议

作者： yifan luo Zhen Zhang Yaohong Qu School of Automation Northwestern Polytechnical University

In this paper, the formation generation problem of multiple hypersonic gliding vehicles(HGVs) and its research basis are first presented. Subsequently, the formation coordinate system and the particle motion model as well as the dynamics model of HGVs are established. Then a multiple HGVs formation generation algorithm based on fixed-time sliding-mode control is proposed, in which a novel sliding-mode surface is first introduced, and by using a second-order intelligent body model, the virtual formation control inputs in the pilot-follower mode is derived, and the error is proved to be able to converge quickly by the Lyapunov function. Subsequently, the virtual control inputs are substituted into the actual kinematic model of the HGVs to obtain the actual control commands: the attack angle command and the bank angle command, which are applied to each HGV to realize the HGVs to achieve the desired formation shape. Finally, through numerical simulations, two formation flight modes are realized, and then the algorithm in this paper is simulated and compared with the common sliding mode control algorithm, which further verifies the effectiveness and superiority of the algorithm proposed in this paper in the problem of HGVs formation generation.

关键词： Hypersonic gliding vehicle formation generation fixed-time sliding surface

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情报理论与实践 2024年第8期47卷 34-42页

作者：储节旺罗怡帆安徽大学管理学院安徽合肥230601

[目的/意义]AIGC拥有强大的内容生成能力,对知识服务领域具有变革作用。研究AIGC赋能图书馆知识服务的路径,对提高图书馆知识服务的效率、提升图书馆在知识服务中的地位具有重要意义。[方法/过程]以模因复制与传播为研究视角,从AIGC拓... 详细信息

[目的/意义]AIGC拥有强大的内容生成能力,对知识服务领域具有变革作用。研究AIGC赋能图书馆知识服务的路径,对提高图书馆知识服务的效率、提升图书馆在知识服务中的地位具有重要意义。[方法/过程]以模因复制与传播为研究视角,从AIGC拓展图书馆知识服务的要素、参与知识服务的过程、提升知识服务的框架三方面,分析AIGC赋能图书馆知识服务的路径,并提出相应建议。[结果/结论]图书馆知识服务的本质是模因的复制与传播;在AIGC的影响下,图书馆知识服务的参与主体由图书馆、AIGC和用户组成;AIGC能有效融入图书馆知识服务的每一个阶段;图书馆应从战略决策、战术筹备和流程设计三部分做出调整。

关键词：图书馆知识服务人工智能生成内容知识模因模因复制与传播

全自动运行下城市轨道交通车站配线区人员登乘列车方案研究

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城市轨道交通研究 2023年第3期26卷 238-241页

作者：雒一帆轨道交通工程信息化国家重点实验室(铁一院) 西安710043 中铁第一勘察设计研究院集团有限公司西安710043

分析了城市轨道交通FAO(全自动运行)线路车站配线区人员登乘列车的需求,在总结既有研究成果的基础上,提出了利用人员防护开关、设置专用通道和登车平台两种登乘方案,并对比分析了这两种登乘方案的作业流程和优缺点。研究表明:设置专用... 详细信息

分析了城市轨道交通FAO(全自动运行)线路车站配线区人员登乘列车的需求,在总结既有研究成果的基础上,提出了利用人员防护开关、设置专用通道和登车平台两种登乘方案,并对比分析了这两种登乘方案的作业流程和优缺点。研究表明:设置专用通道和登车平台的方案具有更高的安全性和登乘效率。最后结合相关规范要求,对专用通道和登车平台的布点及规格参数提出建议。

关键词：城市轨道交通全自动运行车站配线区登乘方案

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