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binder-and conductive additive-free Ga2O3 nanowires as a self-healing anode for lithium storage

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Progress in Natural Science:Materials International 2023年第2期33卷 203-210页

作者： Yang Gao bin wang CAS Key Laboratory of Nanosystem and Hierarchical Fabrication CAS Center for Excellence in Nanoscience National Center for Nanoscience and Technology

High-capacity anode materials have stimulated much attention to developing high-performance lithium-ion batteries. However, high-capacity anode materials commonly suffer from the pulverization matter that greatly hinders their practical applications, especially in terms of the high proportion of active materials. In this work, a Ga2O3nanowire electrode is synthesized by thermal evaporation and immediately used as an anode without the aid of binders and conductive additives. The 3D interconnected architecture of the Ga2O3nanowire electrode shortens lithium diffusion lengths and expedites reaction kinetics. The Ga2O3nanowires exhibit high elasticity and a self-healing ability which is inherited from metallic Ga formed during the electrochemical transition process, thus circumventing the formidable pulverization issue to a certain extent. Benefiting from the unique structural, mechanical, and chemical attributes, the as-grown Ga2O3nanowire electrode gives a high initial lithiation capacity of 1462 m Ah g-1under a current density of 0.1 A g-1. It delivers good cyclic stability with a reversible capacity of 445 m Ah g-1after 200 cycles at 0.5 A g-1. Furthermore, the investigation of lithium storage behaviors indicates the high rate capability of Ga2O3nanowires. This paper contributes to understanding binderand conductive additive-free electrodes consisting of high-capacity active materials from various viewpoints.

关键词： Lithium-ion battery Gallium oxide Nanowires binder-free Mechanical testing

Distributed receding horizon control for fuel-efficient and safe vehicle platooning

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Science China(Technological Sciences) 2016年第12期59卷 1953-1962页

作者： wang Qiong GUO Ge CAI bin bin School of Control Science and Engineering Dalian University of Technology School of Information Science and Technology Dalian Maritime University

This paper investigates the problem of fuel-efficient and safe control of autonomous vehicle platoons. We present a two-part hierarchical control method that can guarantee platoon stability with minimal fuel consumption. The first part vehicle controller is derived in the context of receding horizon optimal control by constructing and solving an optimization problem of overall fuel consumption. The Second part platoon controller is a complementation of the first part, which is given on the basis of platoon stability analysis. The effectiveness of the presented platoon control method is demonstrated by both numerical simulations and experiments with laboratory-scale Arduino cars.

关键词： vehicle platoon fuel consumption string stability optimal control hierarchical control

Degradation of potassium-bearing minerals by thermophilic Aspergillus fumigatus and its optimal conditions

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Acta Geochimica 2006年第S1期 175-175页

作者： bin LIAN, bin wang, Congqiang LIU State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002,China

An Icy Worlds life detection strategy based on Exo-AUV

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Science China Earth Sciences 2024年第11期67卷 3515-3535页

作者： bin wang Hongde QIN National Key Laboratory of Autonomous Marine Vehicle Technology Harbin Engineering UniversityHarbin 150001China Shipbuilding Engineering College Harbin Engineering UniversityHarbin 150001China

In the solar system, Icy Worlds such as Europa and Enceladus hold great potential for extraterrestrial life and may provide humanity an answer, within this century, to the age-old question of life beyond Earth. Exo-AUV technology shows promise in life detection in the icy shell, at the ice-water interface and on the seafloor of exo-ocean. Space agencies, including NASA and DLR, are enthusiastic about deploying Exo-AUVs to explore life in these regions. However, the where and how to find life, the technologies to be utilized and the goals to be achieved are crucial aspects for future Exo-AUV life detection missions on Icy Worlds. This study delves into a hypothetical mission of life detection on Europa, discussing science goals,detectable objects, potential regions and biogenic analysis for Icy Worlds. It proposes a life detection strategy for Icy Worlds based on Exo-AUVs, presents key contextual elements for Exo-AUV operations, outlines technological requirements for hull,payloads and autonomy, introduces the current state of Exo-AUV research and addresses existing challenges. This study also suggests a roadmap for conceptual development of Exo-AUV and a Concept of Operations for Multiple Exo-AUV System(ConOps for MEAS). This system aims to assist planetary scientists and astrobiologists in exploring Icy Worlds, identifying robust biosignatures and potentially discovering extant organisms, even prebiotic chemical systems.

关键词： Icy Worlds Europa Life detection Biological potential Exo-AUV

Spectral-spatial classification for hyperspectral imagery: a novel combination method based on affinity scoring

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Science China(Information Sciences) 2016年第10期59卷 181-193页

作者： Zhao CHEN bin wang State Key Laboratory of Earth Surface Processes and Resource Ecology Beijing Normal University Key Laboratory for Information Science of Electromagnetic Waves (Ministry of Education) Fudan University Research Center of Smart Networks and Systems School of Information Science and Technology Fudan University

Recently, a general framework for spectral-spatial classification has caught the attention of the hyperspectral imagery(HSI) society. It consists of three parts: classification, segmentation and combination of the former results to make a refined labeled map. Seeing the potentials of the last part, we derive a novel combination rule based on affinity scoring(CRAS). The core of the system is affinity score(AS), which is derived from fuzzy logic. Every AS measures the degree, i.e., the affinity, by which a pixel belongs to a class. The score is essentially decided by three factors: local spatial consistency, spectral similarity, and prior knowledge. The method is compatible with basic classification and segmentation tools, thus saving the trouble of designing complex techniques for the other parts in the framework. Experimental results show that CRAS excels several basic techniques as well as various state-of-the-art methods in the area of spectral-spatial classification.

关键词： hyperspectral imagery spectral-spatial classification affinity score local spatial consistency fuzzy superpixel

Emerging contaminant control:From science to action

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Frontiers of Environmental Science & Engineering 2022年第6期16卷 171-174页

作者： bin wang Gang Yu Beijing Laboratory of Environmental Frontier Technology Beijing Key Laboratory of Emerging Organic Contaminants ControlSchool of EnvironmentTsinghua UniversityBeijing 100084China Research Institute for Environmental Innovation(Suzhou) TsinghuaSuzhou 215163China

Since the concept of emerging contaminants(ECs)was first proposed in 2001,the global scientific research of ECs has developed *** the past decades,great progress has been achieved in the scientific research of ECs in China,including the establishment of EC analysis method system,the evaluation of the pollution status,pollution characteristics and environmental risk of ECs in typical regions of China,and establishment of EC control technology *** progress in scientific research of ECs promoted China’s action on EC *** is planned that the environmental risk of ECs will be generally controlled by 2035 in *** ECs should be screened for environmental *** great efforts have been made,the EC control in China still faces tremendous *** is necessary to bridge the gap between scientific research and decision-making *** on the science and technology study,various measures such as engineering,policy management and public participation should be combinedly adopted for EC control.

关键词： Emerging contaminants Priority pollutants PPCPs POPs Control policy

Characteristic model-based consensus of networked heterogeneous robotic manipulators with dynamic uncertainties

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Science China(Technological Sciences) 2016年第1期59卷 63-71页

作者： wang LiJiao MENG bin Science and Technology on Space Intelligent Control Laboratory Beijing Institute of Control Engineering

In this paper, we address the characteristic model-based discrete-time consensus problem of networked robotic manipulators with dynamic uncertainties. The research objective is to achieve joint-position consensus of multiple robotic agents interconnected on directed graphs containing a spanning tree. A novel characteristic model-based distributed adaptive control scenario is proposed with a state-relied projection estimation law and a characteristic model-based distributed controller. The performance analysis is also unfolded where the uniform ultimate boundedness(UUB) of consensus errors is derived by resorting to the discrete-time-domain stability analysis tool and the graph theory. Finally, numerical simulations illustrate the effectiveness of the proposed theoretical strategy.

关键词： networked robotic manipulators consensus discrete time characteristic model distributed adaptive controller uniform ultimate boundedness(UUB)

低剂量纳布啡联合舒芬太尼在PCIA中的临床观察

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潍坊医学院学报 2016年第5期38卷 330-332页

作者：张少杰赵亚娟李慧芳王彬彬王伟芝潍坊医学院麻醉学教研室山东潍坊261053 潍坊医学院内科学教研室潍坊市人民医院麻醉科

目的观察低剂量纳布啡联合舒芬太尼自控静脉镇痛（PCIA）对妇科手术术后镇痛效果和不良反应的影响。方法选择ASAⅠ~Ⅱ级择期行妇科手术患者100例,均采用全身麻醉,术后行PCIA。患者随机分为舒芬太尼组（SF组）和纳布啡联合舒芬太尼组（NS... 详细信息

目的观察低剂量纳布啡联合舒芬太尼自控静脉镇痛（PCIA）对妇科手术术后镇痛效果和不良反应的影响。方法选择ASAⅠ~Ⅱ级择期行妇科手术患者100例,均采用全身麻醉,术后行PCIA。患者随机分为舒芬太尼组（SF组）和纳布啡联合舒芬太尼组（NSF组）,每组50例。SF组镇痛泵配方为：舒芬太尼150μg、盐酸托烷司琼10mg加生理盐水稀释至100ml;NBS组在SF组基础上加10mg/L纳布啡1mg。观察两组患者术后2h,4h,6h,12h,24h,48h视觉模拟评分（VAS）、镇静程度评分（Ramesy）、48h内患者自控镇痛按压次数、患者总体满意度及术后不良反应等情况。结果两组配方均能为患者提供良好的术后镇痛,两组患者总的PCIA按压次数、VAS评分、Ramesy镇静评分差异无统计学意义。NSF组患者术后的总体满意度显著优于SF组（P〈0.05）,且恶心呕吐等不良反应更少。结论低剂量纳布啡联合舒芬太尼PCIA可以使患者阿片类药物相关性恶心呕吐症状的发生率降低,术后镇痛满意度提高。

关键词：纳布啡舒芬太尼患者自控静脉镇痛

Can FSRQs produce the Ice Cube detected diffuse neutrino emission?

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Science China(Physics,Mechanics & Astronomy) 2016年第1期59卷 98-103页

作者： bin wang Zhuo Li Department of Astronomy Peking University Kavli Institute for Astronomy and Astrophysics Peking University

IceCube has reported the detection of a diffuse TeV-PeV neutrino emission, for which the flat spectrum radio quasars （FSRQs） have been proposed to be the candidate sources. Here we assume that the neutrino flux from FSRQs is proportional to their gamma-ray ones, and obtain the gamma-ray/neutrino flux ratio by the diffuse gamma-ray flux from Fermi-LAT measurement of FSRQs and the diffuse neutrino flux detected by IceCube. We apply this ratio to individual FSRQs and hence predict their neutrino flux. We find that a large fraction of candidate FSRQs from the northern sky in the IceCube point source search has predicted neutrino flux above the IceCube upper limit; and for the sample of stacking search for neutrinos by IceCube, the predicted stacked flux is even larger than the upper limit of stacked flux by orders of magnitude. Therefore the IceCube limit from stacking searches, combined with the Fermi-LAT observations, already rejects FSRQs as the main sources of IceCube-detected diffuse neutrinos： FSRQs can only account for 〈 10% 〈 4%） of the IceCube-detected diffuse neutrino flux, according to the stacking searches from the whole （northern） sky. The derived small neutrino/gamma-ray flux ratio also implies that the gamma-ray emission from FSRQs cannot be produced by the secondary le^tons and photons from the Non nroduction nrocesses. The caveat in the assumntions is discussed.

关键词： neutrinos gamma rays active and peculiar galaxies and related systems