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Scientific objectives and payload configuration of the Chang'E-7 mission

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National Science Review 2024年第2期11卷 285-300页

作者： Chi Wang Yingzhuo Jia Changbin Xue Yangting Lin Jianzhong Liu Xiaohui Fu Lin Xu Yun Huang Yufen Zhao Yigang Xu Rui Gao Yong Wei Yuhua Tang Dengyun Yu Yongliao Zou State Key Laboratory of Space Weather National Space Science Center Chinese Academy of Sciences National Space Science center Chinese Academy of Sciences Institute of Geology and Geophysics Chinese Academy of Sciences Institute of Geochemistry Chinese Academy of Sciences Shandong Provincial Key Laboratory of optical Astronomy and Solar-Terrestrial Environment School of Space Science and Physics Institute of Space SciencesShandong University Institute of Drug Discovery Technology Ningbo University State Key Laboratory of Isotope Geochemistry Guangzhou Institute of Geochemistry Chinese Academy of Sciences School of Earth Science and Engineering Sun Yat-sen University Lunar Exploration and Space Engineering center China Aerospace Science and Technology Corporation

As the cornerstone mission of the fourth phase of the Chinese Lunar Exploration Program, Chang'E-7(CE-7) was officially approved, and implementation started in 2022, including a main probe and a communication relay satellite. The main probe, consisting of an orbiter, a lander, a rover and a mini-flying probe, is scheduled to be launched in 2026. The lander will land on Shackleton crater's illuminated rim near the lunar south pole, along with the rover and mini-flying probe. The relay satellite(named Queqiao-2) will be launched in February 2024 as an independent mission to support relay communication during scientific exploration undertaken by Chang'E-4, the upcoming Chang'E-6 in 2024 and subsequent lunar *** CE-7 mission is mainly aimed at scientific and resource exploration of the lunar south pole. We present CE-7's scientific objectives, the scientific payloads configuration and the main functions for each scientific payload with its key technical specifications.

关键词： Chang’ E-7 scientific objectives scientific payloads

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通过USP7结合分子胶上调P53蛋白

Science Bulletin 2024年第12期69卷 1936-1953页

作者：李朝阳王紫英钟超张航刘瑞安平马志强卢俊梅潘成芳张兆霖曹志远胡健一邢栋费一艳丁澦鲁伯埙 The State Key Laboratory of Medical Neurobiology and MOE Frontiers center for Brain Science Huashan Hospitalthe Institutes of Brain ScienceSchool of Life SciencesFudan UniversityShanghai 200438China Department of optical Science and Engineering Shanghai Engineering Research Center of Ultra-Precision Optical ManufacturingKey Laboratory of Micro and Nano Photonic Structures(Ministry of Education)Fudan UniversityShanghai 200438China Shanghai Engineering Research center of Molecular Therapeutics and New Drug Development School of Chemistry and Molecular EngineeringEast China Normal UniversityShanghai 200241China

Molecular glues are typically small chemical molecules that act at the interface between a target protein and degradation machinery to trigger ternary complex *** molecular glues is *** is a scarcity of target-specific upregulating molecular glues,which are highly anticipated for numerous targets,including P53.P53 is degraded in proteasomes through polyubiquitination by specific E3 ligases,whereas deubiquitinases(DUBs)remove polyubiquitination conjugates to counteract these ***,small-molecular glues that enhance P53 anchoring to DUBs may stabilize P53 through ***,using small-molecule microarray-based technology and unbiased screening,we identified three potential molecular glues that may tether P53 to the DUB,USP7,and elevate the P53 *** the molecular glues,bromocriptine(BC)is an FDA-approved drug with the most robust *** was further verified to increase P53 stability via the predicted molecular glue mechanism engaging *** with P53 upregulation in cancer cells,BC was shown to inhibit the proliferation of cancer cells in vitro and suppress tumor growth in a xenograft *** summary,we established a potential screening platform and identified potential molecular glues upregulating *** strategies could be applied to the identification of other types of molecular glues that may benefit drug discovery and chemical biology studies.

关键词： P53 USP7 Deubiquitination Upregulation

Advancing brain-inspired computing with hybrid neural networks

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National Science Review 2024年第05期 56-71页

作者： Faqiang Liu Hao Zheng Songchen Ma Weihao Zhang Xue Liu Yansong Chua Luping Shi Rong Zhao center for Brain-Inspired Computing Research Optical Memory National Engineering Research CenterTsinghua University-China Electronics Technology HIK Group Co.Joint Research Center for Brain-inspired ComputingIDGMc Govern Institute for Brain Research Department of Precision Instrument Tsinghua University Neuromorphic Computing Laboratory China Nanhu Academy of Electronics and Information Technology

Brain-inspired computing, drawing inspiration from the fundamental structure and information-processing mechanisms of the human brain, has gained significant momentum in recent years. It has emerged as a research paradigm centered on brain–computer dual-driven and multi-network integration. One noteworthy instance of this paradigm is the hybrid neural network(HNN), which integrates computer-science-oriented artificial neural networks(ANNs) with neuroscience-oriented spiking neural networks(SNNs). HNNs exhibit distinct advantages in various intelligent tasks, including perception, cognition and learning. This paper presents a comprehensive review of HNNs with an emphasis on their origin, concepts, biological perspective, construction framework and supporting systems. Furthermore, insights and suggestions for potential research directions are provided aiming to propel the advancement of the HNN paradigm.

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Li-Rich Organosulfur Cathode with Boosted Kinetics for High-Energy Lithium-Sulfur Batteries

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Energy & Environmental Materials 2024年第4期7卷 118-125页

作者： Ting Ma Jiaojiao Deng Yuxiao Lin Qinghua Liang Liang Hu Xiaohu Wang Jun Liu Xinsheng Zhao Yinwei Li Ding Nan Xiaoliang Yu College of Chemistry and Chemical Engineering Inner Mongolia University Inner Mongolia Key Laboratory of Graphite and Graphene for Energy Storage and coating School of Materials Science and Engineering Inner Mongolia University of Technology Shenzhen Key Laboratory on Power Battery Safety and Shenzhen Geim Graphene center Tsinghua Shenzhen International Graduate School (SIGS) School of Physics and Electronic Engineering Jiangsu Normal University Key Laboratory of Rare Earth Ganjiang Innovation Academy Chinese Academy of Sciences Department of Mechanical Engineering Research Institute for Smart EnergyThe Hong Kong Polytechnic University

Organosulfur materials containing sulfur-sulfur bonds are an emerging class of high-capacity cathodes for lithium ***,it remains a great challenge to achieve rapid conversion reaction kinetics at practical testing conditions of high cathode mass loading and low electrolyte *** this study,a Li-rich pyrolyzed polyacrylonitrile/selenium disulfide（pPAN/Se2S3） composite cathode is synthesized by deep lithiation to address the above challenges.

关键词： Electrolytes

Co-electrolysis of ethylene glycol and carbon dioxide for formate synthesis

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Science China Chemistry 2024年第5期67卷 1539-1544页

作者： Dongfeng Du Fusong Kang Shiru Yang Bin Shao Jingshan Luo Institute of Photoelectronic Thin Film Devices and Technology State Key Laboratory of Photovoltaic Materials and CellsKey Laboratory of Photoelectronic Thin Film Devices and Technology of TianjinMinistry of Education Engineering Research Center of Thin Film Photoelectronic TechnologyNankai UniversityTianjin 300350China Haihe Laboratory of Sustainable Chemical Transformations Tianjin 300192China Frontiers Science center for New Organic Matter Nankai UniversityTianjin 300071China College of Electronic Information and optical Engineering Tianjin Key Laboratory of Optoelectronic Sensor and Sensing Network TechnologyNankai UniversityTianjin 300350China

Co-electrolysis of waste plastics and carbon dioxide(CO_(2)) into value-added chemicals or fuels is a promising pathway for a sustainable society, but efficient and selective conversion remains a challenge. Herein, a gold-mediated nickel hydroxide(Au/Ni(OH)_(2)) is developed to oxidize waste plastic-derived ethylene glycol(EG) into formate. In-situ electrochemical experiments and theoretical results reveal that the introduction of Au favors the redox properties and EG adsorption behavior of Ni(OH)_(2). The Au/Ni(OH)_(2) catalyst shows an excellent formate selectivity of >90% at high current densities of above 100 m A cm^(-2). When coupled with sputtered bismuth(Bi) cathode for CO_(2) reduction, a high formate Faradic efficiency(FE) of 188.2% at 200 m A cm^(-2)and a good formate productivity of 7.33 mmol m^(-2)s^(-1)at 10 A are obtained in a flow cell and a zero-gap membrane electrode assembly(MEA) cell, respectively. This work demonstrates a promising strategy to convert waste plastics and CO_(2) into valuable products.

关键词： waste plastic upcycling ethylene glycol oxidation carbon dioxide reduction electrocatalysis formate synthesis

Biomimetic leaf structures for ultra-thin electromagnetic wave absorption

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Nano Research 2024年第5期17卷 4507-4516页

作者： Shikun Hou Ying Wang Feng Gao Fei Jin Benfeng Zhu Qiong Wu Hongliang Ge Zhihai Cao Hua Yang Magnetism Key Laboratory of Zhejiang Province&College of optical and Electronic Technology China Jiliang UniversityHangzhou 310018China Department of Materials Science and Engineering Guangdong Technion-Israel Institute of TechnologyShantou 515063China Key Laboratory of Advanced Textile Materials and Manufacturing Technology and Engineering Research center for Eco-Dyeing&Finishing of Textiles Ministry of EducationZhejiang Sci-Tech UniversityHangzhou 310018China

Ultra-thin electromagnetic wave(EMW)absorbers present challenging demands on EMW absorption *** inspiration from heather leaf structures,this study introduces an innovative design strategy for EMW absorbing material,proposing biomimetic leaf SnO_(2) structures(bio-SnO_(2))on carbon fabric(CF).By employing leaf-shaped SnS2 as precursors,biomimetic leaf SnO_(2) nanostructures are constructed on CF surface after a simple thermal treatment,resulting in bio-SnO_(2)@CF *** results indicate that bio-SnO_(2)@CF exhibits an exceptional minimum reflection loss of-54.8 dB at an incredibly thin thickness of 1.2 *** cross section(RCS)simulations further validate the outstanding EMW attenuation ability of bio-SnO_(2)@CF,attaining a maximum RCS reduction value of 16.9 dBm^(2) at an incident wave angle ofθ=0°.This novel research showcases the biomimetic structural design strategy and its remarkable function in enhancing the EMW absorbing performance at ultra-thin absorber thickness.

关键词： biomimetic leaf structures electromagnetic wave absorption ultra-thin thickness

On-chip source-device-independent quantum random number generator

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Photonics Research 2024年第7期12卷 1379-1394页

作者： LANG LI MINGLU CAI TAO WANG ZICONG TAN PENG HUANG KAN WU GUIHUA ZENG State Key Laboratory of Advanced optical Communication Systems and Networks Shanghai Jiao Tong UniversityShanghai 200240China Institute of Quantum Sensing and Information Processing School of Sensing Science and EngineeringShanghai Jiao Tong UniversityShanghai 200240China Shanghai Research center for Quantum Sciences Hefei National LaboratoryShanghai 201315China Shanghai Xun Tai Quantech Co. Ltd.Shanghai 200241China

Quantum resources offer intrinsic randomness that is valuable for applications such as cryptography, scientific simulation, and computing. Silicon-based photonics chips present an excellent platform for the cost-effective deployment of next-generation quantum systems on a large scale, even at room temperature. Nevertheless,the potential susceptibility of these chips to hacker control poses a challenge in ensuring security for on-chip quantum random number generation, which is crucial for enabling extensive utilization of quantum resources.

关键词： temperature quantum random

Two-person device-free localization system based on ZigBee and transformer

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High Technology Letters 2024年第1期30卷 61-67页

作者：刘天蒙 YANG Hai xiao WU Hong School of Electronic Information and optical Engineering Nankai UniversityTianjin 300350P.R.China Tianjin Key Laboratory of Optoelectronic Sensor and Sensing Network Technology Nankai UniversityTianjin 300350P.R.China Engineering Research center of Thin Film Optoelectronics Technology Nankai UniversityTianjin 300350P.R.China

Most studies on device-free localization currently focus on single-person *** paper proposes a novel method for device-free localization that utilizes ZigBee received signal strength indication(RSSI)and a Transformer network *** method aims to address the limited research and low accuracy of two-person device-free *** paper first describes the construction of the sensor network used for collecting ZigBee *** then examines the format and features of ZigBee data *** algorithm design of this paper is then *** box plot method is used to identify abnormal data points,and a neural network is used to establish the mapping model between ZigBee RSSI matrix and localization *** neural network includes a Transformer encoder layer as the encoder and a fully connected network as the *** proposed method's classification accuracy was experimentally tested in an online test stage,resulting in an accuracy rate of 98.79%.In conclusion,the proposed two-person localization system is novel and has demonstrated high accuracy.

关键词： device-free localization deep learning ZigBee

Dynamics of Ring Dark Solitons and the Following Vortices in Spin-1 Bose–Einstein Condensates

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Chinese Physics Letters 2024年第7期41卷 18-26页

作者：钟毓 Houria Triki 周勤 Research Group of Nonlinear optical Science and Technology Research Center of Nonlinear ScienceSchool of Mathematical and Physical SciencesWuhan Textile UniversityWuhan 430200China Radiation Physics Laboratory Department of PhysicsFaculty of SciencesBadji Mokhtar UniversityP.O.Box 1223000 AnnabaAlgeria State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile UniversityWuhan 430200China

This work focuses on the evolution behaviors of ring dark solitons(RDSs) and the following vortices after the collapses of RDSs in spin-1 Bose–Einstein condensates. We find that the weighted average of the initial depths of three components determines the number and motion trajectories of vortex dipoles. For the weighted average of the initial depths below the critical depth, two vortex dipoles form and start moving along the horizontal *** the weighted average depth above the critical depth, two or four vortex dipoles form, and all start moving along the vertical axis. For the RDS with weighted average depth at exactly the critical point, four vortex dipoles form, half of the vortex dipoles initiate movement vertically, and the other half initiate movement *** conclusion is applicable to the two-component system studied in earlier research, indicating its universality.

关键词： vortex dipole Einstein