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Radiationless optical modes in metasurfaces:recent progress and applications

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Light(Science & Applications) 2024年第9期13卷 1720-1740页

作者： Naseer Muhammad Zhaoxian Su Qiang Jiang Yongtian Wang Lingling Huang School of Optics and Photonics Beijing Engineering Research Center of Mixed Reality and Advanced DisplayBeijing Institute of TechnologyBeijing 100081ChinaBeijing 100081China beijing Engineering Research Center of Mixed Reality and Advanced Display Beijing Institute of TechnologyBeijing 100081China

Non-radiative optical modes attracted enormous attention in optics due to strong light confinement and giant Q-factor at its spectral *** destructive interference of multipoles leads to zero net-radiation and strong field *** radiationless states disappear in the far-field,localize enhanced near-field and can be excited in *** the other hand,the optical modes turn out to be completely confined due to no losses at discrete point in the radiation continuum,such states result in infinite Q-factor and *** radiationless states provide a suitable platform for enhanced light matter interaction,lasing,and boost nonlinear processes at the state *** modes are widely investigated in different material configurations for various applications in both linear and nonlinear metasurfaces which are briefly discussed in this review.

关键词： optical lasing optics

A survey on large language model based autonomous agents

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Frontiers of Computer Science 2024年第6期18卷 186345页

作者： WANG Lei MA Chen FENG Xueyang ZHANG Zeyu ,YANG Hao ZHANG Jingsen CHEN Zhiyuan TANG Jiakai CHEN Xu LIN Yankai ZHAO Wayne Xin WEI Zhewei WEN Jirong Gaoling School of Artificial Intelligence Renmin University of China

Autonomous agents have long been a research focus in academic and industry communities. Previous research often focuses on training agents with limited knowledge within isolated environments, which diverges significantly from human learning processes, and makes the agents hard to achieve human-like decisions. Recently, through the acquisition of vast amounts of Web knowledge, large language models (LLMs) have shown potential in human-level intelligence, leading to a surge in research on LLM-based autonomous agents. In this paper, we present a comprehensive survey of these studies, delivering a systematic review of LLM-based autonomous agents from a holistic perspective. We first discuss the construction of LLM-based autonomous agents, proposing a unified framework that encompasses much of previous work. Then, we present a overview of the diverse applications of LLM-based autonomous agents in social science, natural science, and engineering. Finally, we delve into the evaluation strategies commonly used for LLM-based autonomous agents. Based on the previous studies, we also present several challenges and future directions in this field.

关键词： autonomous agent large language model human-level intelligence

Regulation of aerobic glycolysis to decelerate tumor proliferation by small molecule inhibitors targeting glucose transporters

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Protein & Cell 2020年第6期11卷 446-451页

作者： Meng Gao Jian Huang Xin Jiang Yafei Yuan Huanhuan Pang Shuchen Luo Nan Wang Chengbo Yao Zuwan Lin Debing Pu Shuo Zhang Pengcheng Sun Zhuoyi Liu Yu Xiao Qian Wang Zeping Hu Hang Yin Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology(Ministry of Education) Department of ChemistryTsinghua UniversityBeijing 100084China Tsinghua University-Peking University Joint Center for Life Sciences Tsinghua UniversityBeijing 100084China beijing Advanced Innovation Center for Structural Biology Tsinghua UniversityBeijing 100084China State Key Laboratory of Membrane Biology School of Life SciencesTsinghua UniversityBeijing 100084China Department of Molecular Biology Princeton UniversityPrincetonNJ 08544USA School of Pharmaceutical Sciences Tsinghua UniversityBeijing 100084China Laboratory Medicine Center Zhujiang HospitalSouthern Medical UniversityGuangzhouGuangdong 510515China

Dear Editor,Different from normal differentiated cells,metabolic reprogramming was spotted in cancer cells,due to increased demand for energy and macromolecule synthesis during their rapid proliferation(Hanahan and Weinberg,2011;Pavlova and Thompson,2016).Most cancer cells prefer anaerobic glycolysis even with oxygen in the environment due to its higher speed to produce macromolecular materials required for biosynthesis(Vander Heiden et al.,2009;DeBerardinis and Chandel,2016).But to compensate for the lower efficiency of anaerobic glycolysis in producing ATP,these cancer cells demand much higher glucose supply(Warburg,1956;Vander Heiden et al.,2009).These metabolic characteristics point to the huge demand of cancer cells for carbohydrate substrates,which creates the possibility of treating tumors by exploiting this feature(Patra et al.,2013;DeBerardinis and Chandel,2016).

关键词： al. glycolysis cancer

Selective capture and separation of xenon and krypton using metal organic frameworks: a review

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Frontiers of Chemical Science and Engineering 2023年第12期17卷 1895-1912页

作者： Yilun Zhou Jingyi Wang Yujie Zhao He Gu Zhongshan Chen Hui Yang Xiangke Wang College of Environmental Science and Engineering North China Electric Power UniversityBeijing 102206China

Xenon and krypton are widespread useful noble gases in commercial lighting, lasers, electronics, and medical industry. At the same time, radioactive noble gases may proliferate from used nuclear fuel and diffuse in open atmospheres. Metal organic frameworks as hotspot porous materials for gases uptake and separation are considered to be potential solutions. In this review, we comprehensively summarized recent researches on metal organic frameworks for selective capture and separation of xenon and krypton. Particularly, we followed the aspects of different optimal design strategies, including optimal pore/cage size and geometry, open metal sites, ions (anions and cations), and polar functional groups for enhancing the xenon adsorption and separation performances. Meanwhile, a comparison of each strategy and the mechanisms of xenon/krypton separation were pointed out. The separation of krypton from gases mixtures by dual-bed systems was further discussed. Finally, some existing challenges and opportunities for possible real applications were proclaimed.

关键词： metal organic frameworks xenon krypton selective separation used nuclear fuel

A generalized nonlinear three-dimensional failure criterion based on fracture mechanics

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Journal of Rock Mechanics and Geotechnical Engineering 2023年第3期15卷 630-640页

作者： Zhaofeng Wang Pengzhi Pan Jianping Zuo Yaohui Gao State Key Laboratory of Geomechanics and Geotechnical Engineering Institute of Rock and Soil MechanicsChinese Academy of SciencesWuhan430071China University of Chinese Academy of Sciences Beijing100049China School of Mechanics and Civil Engineering China University of Mining and TechnologyBeijing100083China State Key Laboratory of Coal Resources and Safe Mining China University of Mining and TechnologyBeijing100083China Power China Huadong Engineering Corporation Limited Hangzhou310014China

Based on fracture mechanics theory and wing crack model,a three-dimensional strength criterion for hard rock was developed in detail in this *** the basic expression is derived from initiation and propagation of a single crack,it can be extended to microcrack cluster so as to reflect the macroscopic failure ***,it can be derived as HoekeBrown criterion when the intermediate principal stress σ_(2) is equal to the minimum principal stress σ_(3)(Zuo et al.,2015).In addition,the opening direction of the microcrack cluster decreases with the increase of the intermediate principal stress coefficient,which could be described by an empirical function and verified by 10 kinds of hard *** strength is influenced by the coupled effect of stress level and the opening direction of the microcrack clusters related to the stress *** the effects of these two factors on the strength are opposite,the intermediate principal stress effect is induced.

关键词： Intermediate principal stress effect Rock strength Fracture mechanics True triaxial compression

Application of aluminosilicate clay mineral-based composites in photocatalysis

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Journal of Environmental Sciences 2022年第5期34卷 190-214页

作者： Yingtong Zou Yezi Hu Zewen Shen Ling Yao Duoyue Tang Sai Zhang Shuqin Wang Baowei Hu Guixia Zhao Xiangke Wang College of Environmental Science and Engineering North China Electric Power UniversityBeijing 102206China School of Life Science Shaoxing UniversityShaoxing 312000China

Aluminosilicate clay mineral(ACM)is a kind of typical raw materials that used widely in manufacturing industry owing to the abundant reserve and low-cost *** past two decades,in-depth understanding on unique layered structure and abundant surface proper-ties endows ACM in the emerging research and application *** field of solar-chemical energy conversion,ACM has been widely used to support various semiconductor photocata-lysts,forming the composites and achieving efficient conversion of reactants under sunlight *** date,classic ACM such as kaolinite and montmorillonite,loaded with semi-conductor photocatalysts has been widely applied in *** review summaries the recent works on ACM-based composites in *** on the properties of surface and layered structure,we elucidate the different features in the composition with various functional photocatalysts on two typical kinds of ACM,i.e.,type 1∶1 and type 2∶*** only large surface area and active surface hydroxyl group assist the substrate adsorption,but also the layered structure provides more space to enlarge the application of ACM-based ***,we overview the modifications on ACM from both external surface and the inter-layer space that make the formation of composites more efficiently and boost the photo-chemical *** review could inspire more upcoming design and synthesis for ACM-based photocatalysts,leading this kind of economic and eco-friendly materials for more practical application in the future.

关键词： Aluminosilicate clay mineral Photocatalysis Functional bases Surface activating Interlayered modification Pollutant degradation

Prediction of second-order rate constants between carbonate radical and organics by deep neural network combined with molecular fingerprints

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Chinese Chemical Letters 2022年第1期33卷 438-441页

作者： Peizhe Sun Huixin Ma Shangyu Li Hong Yao Ruochun Zhang School of Environmental Science and Engineering Tianjin UniversityTianjin 300072China School of Civil Engineering Tianjin UniversityTianjin 300072China beijing Key Laboratory of Aqueous Typical Pollutants Control and Water Quality Safeguard Department of Municipal and Environmental EngineeringSchool of Civil EngineeringBeijing Jiaotong UniversityBeijing 100044China Institute of Surface-Earth System Science School of Earth System ScienceTianjin UniversityTianjin 300072China Tianjin Key Laboratory of Earth Critical Zone Science and Sustainable Development in Bohai Rim Tianjin UniversityTianjin 300072China

Carbonate radical is among the most important environmental relevant reactive species which govern the transformation and fate of pharmaceutical contaminants(PCs).However,reaction rate constants between carbonate radical and most of the PCs have not been experimentally determined,and quantitative structural-activity relationships(QSARs)have not been established for rate *** study applied Max Min data processing method and used molecular fingerprints(MF)as the input of a deep neural network(DNN)to predict the rate constants between carbonate radical and organic *** parameters and the hyper-structure of the DNN were adjusted to yield satisfactory accuracy of rate *** vector length of 512 bits with radius of 1 for MF and 5 hidden layers gave the best *** optimized MaxMin-MF-DNN model was compared with some of the most commonly used QSARs and machine learning methods,including random data splitting,molecular descriptors,supporting vector machine,decision tree,*** showed that the MF-DNN model out-performed the other methods by more than 10%increase in prediction *** this MF-DNN model,we estimated reaction rates between carbonate radical and pharmaceuticals used in human medicine(1576)and veterinary practice(390).Among them,46 drugs were identified as fast-reacting compounds,suggesting the important relations of their environmental fate with carbonate radical.

关键词： Deep neural network Carbonate radical Molecular fingerprints QSAR Pharmaceuticals

Recent Progress on Metal-Enhanced Photocatalysis:A Review on the Mechanism

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Research 2021年第1期2021卷 885-900页

作者： Ming Fang Xiaoli Tan Zhixin Liu Baowei Hu Xiangke Wang College of Environmental Science and Engineering North China Electric Power UniversityBeijing 102206China School of Life Science Shaoxing UniversityShaoxing 312000China

Metal-enhanced photocatalysis has recently received increasing interest,mainly due to the ability of metal to directly or indirectly degrade *** this review,we briefly review the recent breakthroughs in metal-enhanced *** discussed the recent progress of surface plasmon resonance(SPR)effect and small size effect of metal nanoparticles on photocatalysis;in particular,we focus on elucidating the mechanism of energy transfer and hot electron injection/transfer effect of metal nanoparticles and clusters while as photocatalysts or as ***,we discuss the potential applications of metal-enhanced photocatalysis,and we also offer some perspectives for further investigations.

关键词： breakthrough effect dating

Nano-sized stationary phase packings retained by single-particle frit for microchip liquid chromatography

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Chinese Chemical Letters 2024年第4期35卷 486-489页

作者： Wangyan Hu Ke Li Xiangnan Dou Ning Li Xiayan Wang Center Excellence for Environmental Safety and Biological Effects Beijing Key Laboratory for Green Catalysis and SeparationDepartment of ChemistryBeijing University of TechnologyBeijing 100124China Center for Environmental Metrology National Institute of MetrologyBeijing 100029China

Modern chromatography is increasingly focused on miniaturization and integration. Compared to conventional liquid chromatography, microfluidic chip liquid chromatography(microchip-LC) has the potential due to its zero-dead volume connection and ease of integration. Nano-sized packings have the potential to significantly enhance separation performance in microchip-LC. However, their application has been hindered by packing difficulties. This study presents a method for packing nano-sized silica particles into a microchannel as the stationary phase. The microchip-LC packed column was prepared by combining the weir and the porous silica single-particle as frit to retain the packing particles. A surface tensionbased single-particle picking technique was established to insert porous single-particle frit into glass microchannels. Additionally, we developed a slurry packing method that utilizes air pressure to inject nano-sized packing into the microchannel. Pressure-driven chromatographic separation was performed using this nano-packed column integrated into a glass microchip. The mixture of four PAHs was successfully separated within just 8 min using a 5 mm separation channel length, achieving high theoretical plates(10~6plates/m). Overall, these findings demonstrate the potential of utilizing nano-sized packings for enhancing chromatographic performance in microchip systems.

关键词： Nano-size packing Single-particle frit Packed column Microchip LC Chromatographic separation