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The FAST Galactic Plane Pulsar Snapshot Survey. Ⅷ. 116 Binary Pulsars

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Research in Astronomy and Astrophysics 2025年第1期 77-109页

作者： P.F.Wang j.L.han Z.L.Yang T.Wang C.Wang W.Q.Su j.xu D.j.Zhou Yi Yan W.C.jing N.N.Cai j.P.Yuan R.x.xu H.G.Wang x.P.You National Astronomical Observatories Chinese Academy of Sciences School of Astronomy and Space Science University of Chinese Academy of Sciences Key Laboratory of Radio Astronomy and Technology Chinese Academy of Sciences xinjiang Astronomical Observatory Chinese Academy of Sciences Department of Astronomy Peking University Kavli Institute for Astronomy and Astrophysics Peking University Department of Astronomy School of Physics and Materials ScienceGuangzhou University School of Physical Science and Technology Southwest University

Finding pulsars in binaries is important for measurements of the masses of neutron stars (NSs),for tests of gravity theories,and for studies of star *** are carrying out the Galactic Plane Pulsar Snapshot survey (GPPS by using the Five-hundred-meter Aperture Spherical radio Telescope (FAST).Here we present the Keplerian parameters for 116 newly discovered pulsars in the FAST GPPS survey and obtain timing solutions for 29 pulsars Companions of these pulsars are He white dwarfs (WDs),CO/ONe WDs,NSs,main sequence stars and ultra ligh objects or even *** observations uncover eclipses of eight binary *** optical counterpart for th companion of PSR j1908+1036 is *** Post-Keplerian parameter ■ for the double NS systems PSR j0528+3529 and j1844-0128 have been measured,with which the total masses of the binary systems ar determined.

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磁吸附爬壁机器人研究进展及其应用探索

机器人 2025年第1期47卷 123-144页

作者：李安陶波丁汉华中科技大学湖北武汉430074

基于磁吸附原理的爬壁机器人可在大型钢质结构体表面执行3维移动作业,完成复杂高空场景下的制造任务。本文综述了磁吸附爬壁机器人在吸附原理、功能设计、自主导航和应用场景等方面的最新研究进展。首先,介绍了以永磁、电励磁、电永磁... 详细信息

基于磁吸附原理的爬壁机器人可在大型钢质结构体表面执行3维移动作业,完成复杂高空场景下的制造任务。本文综述了磁吸附爬壁机器人在吸附原理、功能设计、自主导航和应用场景等方面的最新研究进展。首先,介绍了以永磁、电励磁、电永磁、混合励磁为代表的4种典型励磁原理,探究了基于不同励磁原理的磁吸附单元设计方法。其次,按照结构设计的功能性划分,分别综述了现有磁吸附爬壁机器人在运动机制、越障功能、曲面适应和壁面过渡等方面的设计方法。然后,介绍了磁吸附爬壁机器人在3维空间中的自主导航与运动控制技术,包括感知定位、运动规划与控制技术。最后,归纳总结了磁吸附爬壁机器人在多种铁磁性作业场景中的应用现状,展望了磁吸附爬壁机器人关键技术的未来发展趋势。

关键词：爬壁机器人磁吸附原理功能结构设计自主导航

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A comparison of the proto-dolomite induced by cyanobacteria and halophilic bacteria:implications for dolomite-inducing microbe identification

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journal of Palaeogeography 2025年第01期14卷 277-290页

作者：赵延洋 xiang-Yu Wei xiao Gao Na Guo jie Li Kai-Ming Hu Chao han Qi-Yu Wang 韩作振 Shandong Provincial Key Laboratory of Depositional Mineralization and Sedimentary Minerals College of Earth Science and Engineering Shandong University of Science and Technology Laboratory for Marine Mineral Resources Qingdao National Laboratory for Marine Science and Technology Key Laboratory of Sedimentary Basin and Oil and Gas Resources Ministry of Natural Resources Key Laboratory of Deep Oil and Gas China University of Petroleum

This study investigates the morphological and mineralogical characteristics of proto-dolomite induced by two specific microorganisms with varying lifestyles:the extremely halophilic bacterium Vibrio harveyi QPL2 and the cyanobacterium Leptolyngbya boryana. Halophilic bacterially-induced proto-dolomite(HBD) and cyanobacterially-induced proto-dolomite (CBD) were subjected to comprehensive characterization techniques, including x-ray diffraction, scanning electron microscopy, Focused Ion Beam, thermogravimetric analysis, and x-ray photoelectron spectroscopy. The results indicate that both HBD and CBD exhibit a low degree of crystallinity and possess comparable molar ratios of MgCO3to CaCO3. Moreover, neither of them exhibits the ordered structure of ideal dolomite. HBD and CBD exhibit notable distinctions in external morphology and internal structure. HBD forms a subunit aggregate with a less dense surface and numerous pinhole structures resulting from bacterial survival. In contrast, CBD adopts a bispherical shape with a relatively dense surface and minimal indications of cyanobacterial survival. Both HBD and CBD have an internal hollow structure. However, HBD is characterized by sparse population and loosely arranged subunits, while CBD features only a central cavity. Additionally, HBD particles are smaller compared to CBD particles. These morphological differences suggest that HBD primarily grows through bacterial surface-dependent processes,whereas the growth of CBD is not directly reliant on the surface of cyanobacteria. Compositionally, the weightpercentage of crystalline water in CBD exceeded that of HBD with a value of 29.42%compared to 5.9%. This increase in internal crystalline water enables a faster conversion of CBD to the ordered ideal dolomite in a specific diagenetic environment. This study implies that the morphology and composition of microbial protodolomite may aid in identifying the type of dolomite-inducing microbes.

关键词： Proto-dolomite Cyanobacteria Halophile Crystal morphology Water of crystallization

Temporal and Spatial Heterogeneity and Its Influencing Factors of Carbon Surplus and Deficit at County-Level Areas in Shaanxi Province

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Huanjing Kexue/Environmental Science 2025年第3期46卷 1502-1516页

作者： Ding, Yi-Meng han, Ling Huang, xin School of Land Engineering Chang'an University Xi'an710054 China

Carbon source and sink monitoring is an important prerequisite for realizing the dual-carbon target and the evolution of its spatial-temporal pattern and the spatial-temporal heterogeneity of the driving factors are the scientific basis for the implementation of the emission reduction and sink enhancement policy according to the local conditions，which is of great importance for the sustainable development of the region. Based on the carbon balance of payment relationship，the carbon surplus and deficit of Shaanxi Province counties were calculated in 2000，2010，and 2020 from land use，and a series of exploratory spatial and temporal analysis methods（ESTDA），including spatial autocorrelation，cold and hot spot analysis，standard deviation ellipse，and LISA-time pathway，were used to study the dynamics of carbon surplus and deficit in Shaanxi Province at different spatial-temporal scales. From the 21 indicators，six types of major driving factors were selected by principal component analysis，and the geographical spatio-temporal weighted regression model（GTWR）was used to identify their spatio-temporal heterogeneity to construct a comprehensive system of indicators to analyze the carbon deficit and its spatio-temporal heterogeneity in Shaanxi Province. The results showed that：① A carbon surplus of 8.56 million tons in 2000，a carbon deficit of 3 296 tons in 2010，and a deficit of 33.34 million tons occurred in 2020 in Shaanxi Province，and the growth rate of carbon emissions was much larger than that of carbon sinks，which indicates that it was gradually moving towards carbon peaks in Shaanxi Province;however，there is a long way to go to achieve the goal of carbon neutrality. ② The geographical distribution of the"north deficit and south surplus"phenomenon was visually represented. A carbon deficit was concentrated in the wind and sand area along the Great Wall and Guanzhong plain. The spatial-temporal leap characteristics were more stable. In conclusion，efforts aimed at emission red

关键词： Anthropogenic

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基于平均场理论的航空安全风险预警模型

系统工程与电子技术 2025年第1期47卷 210-216页

作者：张晗王强闵桂龙空军工程大学装备管理与无人机工程学院陕西西安710051 西安财经大学审计处陕西西安710100 中国人民解放军94789部队江苏南京210016

由于航空事故的发生往往很难预测,而且是不可逆转的,因此如何制定有效的航空预警方案是避免事故发生的关键。针对航空安全风险预警问题,利用航空风险传播动力学模型,基于平均场理论解析航空系统事故触发概率,通过敏感性分析得出触发事... 详细信息

由于航空事故的发生往往很难预测,而且是不可逆转的,因此如何制定有效的航空预警方案是避免事故发生的关键。针对航空安全风险预警问题,利用航空风险传播动力学模型,基于平均场理论解析航空系统事故触发概率,通过敏感性分析得出触发事件对航空事故发生的提升率,建立事前航空事故预警模型。结果发现,事前预警模型中应该分配更多的资源给能见度差、飞机系统故障、疲劳、特情处置不力、技能不足、设备维护不足等触发事件,从而避免上述事件的发生。通过航空事故风险传播规律,建立事中航空事故预警模型,得出受到触发事件影响的风险演化事件集合,并给出对应排序使得管理者可以做到资源的有效分配。

关键词：航空事故报告复杂网络传染病模型平均场理论风险预警

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2024年度肝衰竭与人工肝领域研究进展

中华肝脏病杂志 2025年第01期33卷 13-14页

作者：韩涛南开大学人民医院(天津市人民医院) 天津

2024年, 肝衰竭相关临床实践指南陆续颁布。肝衰竭尤其是肝脏再生的机制研究取得新的进展, 对于慢加急性肝衰竭(ACLF)继发感染的免疫学机制有新的认识, 类器官、细胞治疗也有新进展, 新型人工肝与肝移植技术初步取得令人鼓舞的结果。肝... 详细信息

2024年, 肝衰竭相关临床实践指南陆续颁布。肝衰竭尤其是肝脏再生的机制研究取得新的进展, 对于慢加急性肝衰竭(ACLF)继发感染的免疫学机制有新的认识, 类器官、细胞治疗也有新进展, 新型人工肝与肝移植技术初步取得令人鼓舞的结果。肝衰竭的临床诊治尤其是ACLF的定义已经呈现从争议走向共识的趋势, 肝衰竭相关的新机制与新的治疗靶点不断被阐明, 新型诊治技术不断涌现, 有望进一步降低肝衰竭的病死率。

关键词：肝衰竭慢加急性肝衰竭人工肝治疗

The FAST Galactic Plane Pulsar Snapshot Survey. Ⅵ. The Discovery of 473 New Pulsars

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Research in Astronomy and Astrophysics 2025年第1期 10-65页

作者： j.L.han D.j.Zhou C.Wang W.Q.Su Yi Yan W.C.jing Z.L.Yang P.F.Wang T.Wang j.xu N.N.Cai j.H.Sun Q.L.Yang R.x.xu H.G.Wang x.P.You National Astronomical Observatories Chinese Academy of Sciences School of Astronomy and Space Sciences University of Chinese Academy of Sciences Department of Astronomy Peking University Kavli Institute for Astronomy and Astrophysics Peking University Department of Astronomy School of Physics and Materials Science Guangzhou University School of Physical Science and Technology Southwest University

The Five-hundred-meter Aperture Spherical radio Telescope （FAST） is the most sensitive telescope at the L-band（1.0–1.5 GHz） and has been used to carry out the FAST Galactic Plane Pulsar Snapshot （GPPS） survey in the las5 *** to now,the survey has covered one-fourth of the planned areas within±10~ofrom the Galactic plane visible by FAST,and discovered 751 *** the first publication of the discovery of 201 pulsars and one rotating radio transient （RRAT） in 2021 and 76 RRATs in 2023,here we report the discovery of 473 new pulsars from the FAST GPPS survey,including 137 new millisecond pulsars and 30 new *** find 34 millisecond pulsars discovered by the GPPS survey which can be timed with a precision better than 3μs by using FAST15 minute observations and can be used for pulsar timing *** GPPS survey has discovered eight pulsars with periods greater than 10 s including one with 29.77 *** integrated profiles of pulsars and individual pulses of RRATs are *** the FAST GPPS survey,we also detected previously known pulsars and updated parameters for 52 *** addition,we discovered two fast radio bursts plus one probable case with high dispersion measures indicating their extragalactic origin.

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An improved α-cut approach to transforming fuzzy membership function into basic belief assignment

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Chinese journal of Aeronautics 2016年第4期29卷 1042-1051页

作者： Yang Yi x.Rong Li han Deqiang SKLSVMS School of Aerospace Xi'an Jiaotong University Department of Electrical Engineering University of New Orleans Center for Information Engineering Science Research Xi'an Jiaotong University

In practical applications, pieces of evidence originated from different sources might be modeled by different uncertainty theories. To implement the evidence combination under the Dempster–Shafer evidence theory (DST) framework, transformations from the other type of uncertainty representation into the basic belief assignment are needed. α-Cut is an important approach to transforming a fuzzy membership function into a basic belief assignment, which provides a bridge between the fuzzy set theory and the DST. Some drawbacks of the traditional α-cut approach caused by its normalization step are pointed out in this paper. An improved α-cut approach is proposed, which can counteract the drawbacks of the traditional α-cut approach and has good properties. Illustrative examples, experiments and related analyses are provided to show the rationality of the improved α-cut approach. © 2016 Chinese Society of Aeronautics and Astronautics

关键词： Fuzzy set theory Fuzzy sets Uncertainty analysis

Carbon interconnected microsized Si film toward high energy room temperature solid-state lithium-ion batteries

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Chinese Chemical Letters 2025年第2期36卷 531-535页

作者： xin Li Ling Zhang Yunyan Fan Shaojing Lin Yong Lin Yongsheng Ying Meijiao Hu Haiying Gao xianri xu Zhongbiao xia xinchuan Lin junjie Lu xiang han School of Information Engineering Fujian Business University College of Artificial Intelligence Yango University College of Materials Science and Engineering Co-Innovation Center of Efficient Processing and Utilization of Forest Resources Nanjing Forestry University

Solid-state batteries （SSBs） with high-capacity Si anodes have been regarded as one of the most promising candidates to meet the large scale energy storage and electrical vehicles due to its intrinsic safety and potential high energy ***,Si suffers from poor electrical conductivity and huge volume change and particles fracture during lithiaiotn and delithiation,which induces low practical energy *** addition,the SSBs are often operated at high temperature due to the poor physical contact and huge resistance between Si and solid-state electrolyte （SSE）.To improve the bulk electronic/ionic conductivity of Si and its interfacial compatibility with SSE,herein,a binder free and self-supporting Si/C film was *** monolithic carbon not only enhance the electric conductivity but also release huge stress during lithiation and *** addition,paired with the flexible and soft poly（vinylidene fluoride）-co-hexafluoropropylene （PVDF-HFP） and Li1.3Al0.3Ti1.7（PO4）3（LATP） solid-state electrolyte,a LiF-rich and electrochemical stable solid-electrolyte interphase （SEI） layer is in-situ *** fast bulk and interfacial ionic transportation as well as the mechanical integrity of MSi enable high performance SSBs at room *** a result,high specific capacity of 2137 m Ah/g with an initial Coulombic efficiency of 83.2%is obtained at a rate of 0.5 A/*** at a high rate of 3 A/g,the specific capacity is1793 m Ah/*** a rate of 1 A/g,the Si/C anode delivers a long cycling performance over 500 cycles while maintains a capacity of 1135 mAh/*** work provides a new strategy that combines charge transfer kinetics and interfacial chemistry design toward high energy density Si-based SSBs.

关键词： Carbon coating Interphase Lithium-ion battery Silicon anode Solid-state electrolyte