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Reshaping the concept of bonded magnets——recent progress in the industrialization of anisotropic rare earth-ferro nitrides(SmFeN,NdFeN)

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China Rare Earth Information 2024年第3期30卷 3-10页

作者： wang xinan Liao Siyu Cheng Benpei Chairman of Ningxia Magvalley Novel Materials Technology Co. LtdMember of CPPCC Standing Committee of Ningxia Hui Autonomous Region Deputy General Manager of Ningxia Magvalley Novel Materials Technology Co. Ltd. Professor School of PhysicsPeking UniversitySenior Scientist of Ningxia Magvalley Novel Materials Technology Co.Ltd.

The chemical formula for rare earth-ferro nitrides is RxFeyNz,where R represents a rare earth *** rare earth-ferro nitrides include two types of materials with different chemical compositions and crystal structures:(1) Nd(Fe,M)12Nx or Pr(Fe,M)12Nx,where M=Ti,V,Mo,etc.,having a ThMn12-type tetragonal crystal structure,commonly referred to as Neodymium-FerroNitrogen (NdFeN);(2) Sm2Fe17Nx, having a Th2Zn17-type rhombohedral crystal structure,abbreviated as Samarium-Ferro-Nitrogen (SmFeN).The academic community refers to these two types of materials collectively as rare earth-ferro nitrides.

关键词： Sm2Fe17Nx SmFeN earth

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中大型无人船舶自主控制系统架构设计及实现

中国舰船研究 2024年第S1期19卷 1-9页

作者：徐亮王欣安刘希余秀韩伟中国舰船研究设计中心上海201108

[目的]自主控制系统作为无人船舶的核心系统,负责协调全船其他系统,共同完成各项既定使命任务,是无人船舶技术的重要研究方向。[方法]首先,借鉴主导人类智能的“神经系统”的生理学结构和认知机制,归纳出对于无人船舶自主控制系统架构... 详细信息

[目的]自主控制系统作为无人船舶的核心系统,负责协调全船其他系统,共同完成各项既定使命任务,是无人船舶技术的重要研究方向。[方法]首先,借鉴主导人类智能的“神经系统”的生理学结构和认知机制,归纳出对于无人船舶自主控制系统架构仿生设计的6点启示。然后,基于这些启示,从“中枢神经系统”和“周围神经系统”两个维度,研究自主控制系统的物理架构及其典型实现。最后,借鉴人类智能的信息处理流程,提出8大功能模块构成的自主控制系统的功能架构以及面向服务架构(SOA)的设计思路。[结果]经研究得到了无人船舶自主控制系统物理架构和功能架构,[结论]其可为中大型无人船舶自主控制系统的总体架构、系统设计与产品研制提供路线参考。

关键词：无人船舶智能体自主控制系统架构设计

Effects of Alloying Elements on the Volume Fraction of Ordered α_2 Phase Precipitated in Ti-Al-Sn-Zr Alloys

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Journal of Materials Science & Technology 2007年第1期23卷 102-106页

作者： Jun ZHANG Na PENG xinan wang Li LI Qingjiang wang Department of Materials Science and Engineering Shenyang University Shenyang 110044 China Institute of Metal Research Chinese Academy of Sciences Shenyang 110015 China

An ideal method has been established for calculating the precipitation of α2 ordered phase in near-α titanium alloys based on the theory on the critical electron concentration for the precipitation of α2 ordered phase in near-α titanium alloys. With complete precipitation of α2 phase in near-α titanium alloys, the alloys can be considered to be composed of two parts：（1） the α2 ordered phase with the stoichiometric atomic ratio of Ti3X; （2） the disorder solid solution with the critical composition in which the α2 ordered phase is just unable to precipitate. By using this method, the volume fractions of α2 ordered phase precipitated in Ti-Al, Ti-Sn, Ti-Al-Sn-Zr alloys with various AI, Sn and/or Zr contents have been calculated. The influences of AI and Sn on the precipitation of α2 ordered phase are discussed. The calculating results show substantial agreement with the experimental ones.

关键词： Ordered α2 phase Precipitation Electron concentration Titanium alloys

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区块链技术对X企业会计信息化影响研究

商业观察 2024年第19期10卷 68-72页

作者：张丽平王溪楠王炜楠河北经贸大学河北石家庄050062

会计作用的实现离不开高质量的会计信息,而会计信息的质量保障一定程度上取决于会计信息系统。随着经济发展的成熟,近年来我国的会计造假和信息失真现象层出不穷,主要是因为落后的会计信息系统难以保障数字技术发展时代原始会计数据的... 详细信息

会计作用的实现离不开高质量的会计信息,而会计信息的质量保障一定程度上取决于会计信息系统。随着经济发展的成熟,近年来我国的会计造假和信息失真现象层出不穷,主要是因为落后的会计信息系统难以保障数字技术发展时代原始会计数据的真实性,导致难以保障会计数据处理和核算过程的实质性。此外,传统的会计信息处理系统难以固化原始财务数据与信息处理过程,致使信息处理过程易出现伪造篡改等问题。随着数字技术的不断发展,会计信息处理已逐渐从手工记账向电算化、信息化、数字化过渡,为会计信息系统的重构和优化奠定了技术基础。区块链技术作为目前发展较为成熟的数字技术,已逐渐被应用于金融、物流、农业等方面。其所具备的不可伪造、不可篡改的特性能够充分保障财务数据的可信性和准确性,促进企业管理工作的优化与完善,降低管理运营成本,提高企业的核心竞争力,从而助力企业实现高质量可持续发展。

关键词：区块链技术会计信息系统会计信息质量

护理领域第二受害者研究热点及发展趋势的可视化分析

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中华急危重症护理杂志 2024年第9期5卷 812-818页

作者：周泓廷庄一渝王新安黄洌彬浙江大学医学院附属邵逸夫医院护理部杭州市3100000 浙江大学医学院附属邵逸夫医院急诊科杭州市3100000 澳门理工大学健康科学与体育学院中国

目的分析国内外护理领域第二受害者的研究现状、研究热点及发展趋势。方法检索Web of Science核心合集数据库和中国知网,对建库至2023年11月20日发表的护理领域第二受害者的相关文献采用CiteSpace 6.2.R4软件进行计量学分析。结果共纳... 详细信息

目的分析国内外护理领域第二受害者的研究现状、研究热点及发展趋势。方法检索Web of Science核心合集数据库和中国知网,对建库至2023年11月20日发表的护理领域第二受害者的相关文献采用CiteSpace 6.2.R4软件进行计量学分析。结果共纳入英文文献169篇、中文文献74篇。国外对于护理领域第二受害者的研究已形成多个核心团队,但国内尚未形成合力。国外对第二受害者的影响因素、支持需求以及干预模式等的研究已经比较成熟,而国内大多停留在对第二受害者经历及支持现状探索的量性研究,质性研究以调查护士在经历不良事件后的心理、情绪体验为主,探索护士的支持需求以及支持获取途径的研究不多。较少有基于政策的支持系统构建和以医院为单位的干预项目。结论国内跨地区、跨机构、跨团队合作有待加强,国内外的热点研究方向具有相似性,均呈现多样化。各级各类医疗机构应进一步研究中国第二受害者的需要,推动建立非惩罚性的医院患者安全文化,未来研究可以逐步探索适合中国医疗情况的第二受害者支持系统。

关键词：护理护士第二受害者文献计量学可视化分析研究热点

A novel intelligent verification platform based on a structured analysis model

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Science China(Information Sciences) 2013年第6期56卷 167-180页

作者： XIE Zheng wang xinan LIAN ZhiBin LUO YongGui HU ZiYi Key Laboratory of Integrated Micro-system Science and Engineering Applications Peking University Shenzhen Graduate School EDA Center of Chinese Academy of Sciences

An intelligent verification platform based on a structured analysis model is *** an abstract model mechanism with specific signal interfaces for user callback,the unified structured analysis data,shared by the electronic system level design,functional verification,and performance evaluation,enables efficient management review,auto-generation of code,and modeling in the transaction *** introduce the class tree,flow parameter diagram,structured flow chart,and event-driven finite state machine as structured analysis *** a sand table to carry maps from different perspectives and levels via an engine,this highly reusable platform provides the mapping topology to search for unintended consequences and the graph theory for comprehensive coverage and smart test *** results show that the engine generates efficient test sequences,with a sharp increase in coverage for the same vector count compared with a random test.

关键词： intelligent verification platform verification automation structured analysis model mapping topology graph theory algorithm

A novel low-noise high-linearity CMOS transmitter for mobile UHF RFID reader

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Science China(Information Sciences) 2014年第8期57卷 187-194页

作者： LIU Shan wang xinan SHEN JinPeng wang Bo YE Tao HUANG Ru Key Laboratory of Integrated Microsystems Peking University Shenzhen Graduate School

A novel CMOS transmitter with low TX noise and high linearity is implemented in a 0.18μm 1P6M standard CMOS process for Mobile UHF RFID *** double-sideband amplitude-shift-keying(DSBASK)as the only modulation is supported,this transmitter has very low power consumption.A novel analog baseband circuit is proposed to reduce the transmitter *** a G′′m–cancellation technology,a highly linear up-conversion active mixer and a power amplifier driver are *** transmitter has a measured output1 dB compression point of 13.4 *** a silicon area of about 1 mm2and consuming 144 mW from a1.8 V voltage supply,the transmitter makes the Mobile UHF RFID reader communicate with a transponder in a distance of 1 m conveniently.

关键词： transmitter mobile UHF RFID reader low noise high linearity analog baseband

Role of nitric oxide in the genotoxic response to chronic microcystin-LR exposure in human–hamster hybrid cells

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Journal of Environmental Sciences 2015年第3期27卷 210-218页

作者： Xiaofei wang Pei Huang Yun Liu Hua Du xinan wang Meimei wang Yichen wang Tom K.Hei Lijun Wu An Xu Key Laboratory of Ion Beam Bioengineering Hefei Institutes of Physical Science Chinese Academy of Sciences Institute of Intelligent Machines Hefei Institutes of Physical Science Chinese Academy of Sciences Center for Radiological Research College of Physicians & Surgeons Columbia University

Microcystin-LR （MC-LR） is the most abundant and toxic microcystin congener and has been classified as a potential human carcinogen （Group 2B） by the International Agency for Research on Cancer. However, the mechanisms underlying the genotoxic effects of MC-LR during chronic exposure are still poorly understood. In the present study, human-hamster hybrid （AL） cells were exposed to MC-LR for varying lengths of time to investigate the role of nitrogen radicals in MC-LR-induced genotoxicity. The mutagenic potential at the CD59 locus was more than 2-fold higher （p 〈 0.01） in AL ceUs exposed to a cytotoxic concentration （1 μmol/L） of MC-LR for 30 days than in untreated control ceils, which was consistent with the formation of micronucleus. MC-LR caused a dose-dependent increase in nitric oxide （NO） production in treated cells. Moreover, this was blocked by concurrent treatment with the NO synthase inhibitor NC-methyl-L-arginine （L-NMMA）, which suppressed MC-LR- induced mutations as well. The survival of mitochondrial DNA-depleted （pO） AL ceils was markedly decreased by MC-LR treatment compared to that in AL cells, while the CD59 mutant fraction was unaltered. These results provided clear evidence that the genotoxicity associated with chronic MC-LR exposure in mammalian cells was mediated by NO and might be considered as a basis for the development of therapeutics that prevent carcinogenesis.

关键词： Microcystin-LR (MC-LR) Chronic exposure Genotoxicity Nitric oxide

Testing of 1TnR RRAM array with sneak path technique

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Science China(Information Sciences) 2017年第2期60卷 208-210页

作者： Xiaole CUI Qiang ZHANG Xiaoxin CUI xinan wang Jinfeng KANG Xiaoyan LIU Key Laboratory of Integrated Microsystems Peking University Shenzhen Graduate School Institute of Microelectronics Peking University

Dear editor,RRAM is regarded as one of the most promising candidates among emerging nonvolatile memory technologies[1,2].Recently,the 1Tn R RRAM structure,in which n RRAM cells in each row share a common bottom electrode connected to the drain node of a selector transistor,was proposed to improve the integration density[3,4].The area of the 1T4R RRAM test chip is 30%smaller than that of the conventional 1T1R cell[3].However,the complexity of the conventional

关键词： RRAM cell Testing of 1TnR RRAM array with sneak path technique