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Intelligently assembly of W_(18)O_(49)nanorod clusters with directionally generated oxygen vacancies and excellent electrochemical properties

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Nano Research 2022年第4期15卷 3575-3586页

作者： Dan Zhou Xiaojiao Guo Yixiang Chen xiaoyu yuan Jinku Liu Key Laboratory for Advanced Materials School of Chemistry and Molecular EngineeringEast China University of Science and TechnologyShanghai 200237China

Mixed-valence metallic compounds are a class of functional materials with peculiar electrochemical *** the correlation between defects and corrosion resistance of mixed-valence metallic compounds is a novel and interesting *** an intelligently designed synergistic process of reduction and directed assembly,not only the directional generation of oxygen vacancies along the normal direction of the(010)crystal plane was achieved,but also the W_(18)O_(49)mixed-valence metal oxide(MVMO)with a single crystalline phase and an assembled ordered three-dimensional cluster structure of nanorods was *** attractive effects of oriented oxygen vacancies in W_(18)O_(49)MVMO were ***,the oxygen vacancy channels realized the directional concentrated transport of oxygen atoms to form dense oxide passivation ***,the directional concentrated oxygen vacancies as active centers effectively solved the problem of difficult photoelectron leap and separation of pure-phase semiconductors,realizing photogenerated cathodic ***,the high-energy vacancies endowed the material with antibacterial function,which contributed to the stable existence of the anti-corrosion *** resistance value of W_(18)O_(49)MVMO as an anti-corrosion functional material was increased to more than 4.00 times that of the original metal protection *** experimental results obtained in this research were of great reference value for revealing the intrinsic mechanism of correlation between oxygen defect orientation of MVMOs and electrochemistry.

关键词： oxygen vacancy directional generated W_(18)O_(49) mixed-valence metal oxide electrochemical properties

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Neoproterozoic Crustal Reworking and Growth in the Zhangbaling Uplift, Tan-Lu Fault Zone: Evidence from the Feidong Complex and Zhangbaling Group

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Acta Geologica Sinica(English Edition) 2020年第6期94卷 1921-1939页

作者： NIU Manlan CAI Qianru WU Qi yuan xiaoyu SUN Yi LI Xiucai LI Chen ZHU Guang LI Zhensheng ZHANG Shuai School of Resources and Environmental Engineering Hefei University of TechnologyHefei 230009China

Intensive mid-Neoproterozoic magmatism is the salient feature of the Yangtze Block,preserving abundant information about crustal reworking and *** U-Pb-Lu-Hf isotope analysis was performed on material from the Feidong Complex(FDC)and Zhangbaling Group(ZBLG)of the Zhangbaling Uplift,in order to determine the age and magmatic source of the Neoproterozoic igneous rocks as well as the detrital provenance for the sedimentary rocks,to further provide important data for understanding the mid-Neoproterozoic crustal evolution of the Northeast Yangtze *** amphibolite and gneissic granites in the Feidong Complex(FDC)gave similar protolith ages of 782-776 *** synmagmatic zircons exhibited variable negativeεHf(t)values of-26.9 ***(ca.2.4 Ga)to late Paleoproterozoic(ca.2.0-1.9 Ga)inherited zircons were found in the gneissic monzogranite,with negativeεHf(t)values of-11.2 to-7.2,indicating strong reworking of the ancient crustal materials of the Northeast Yangtze *** the amphibolites represent minor crustal growth through emplacement of continental rifting-related mafic *** quartz-keratophyres in the Xileng Formation of the ZBLG in contrast systematically yield young protolith crystallization ages of 754-727 Ma with highεHf(t)values of-2.0 to+5.6,indicating their derivation from the reworking of juvenile crustal *** detrital zircons from the metasiltstone in the Beijiangjun Formation yield variable^(206)Pb/^(238)U ages(871-644 Ma)with a peak age at 741±11 Ma andεHf(t)values of-4.3 to+5.3,which is consistent with those of the Xileng Formation,but distinct from the FDC,indicating that the provenance of the metasiltstone is primarily the underlying Xileng *** mid-Neoproterozoic igneous and sedimentary rocks of the Zhangbaling Uplift were products from continental rifting zones along the northern margin of the Yangtze Block,situated in different positions from the Susong Complex and the Haizhou *** transition from a

关键词： zircon U-Pb age Lu-Hf isotope crustal reworking Neoproterozoic magmatism Zhangbaling Uplift

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Mantle Response to Slab Breakoff in the North Qaidam Tectonic Belt: Geochemical Constraints from Syn-subduction Mafic Igneous Rocks

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Acta Geologica Sinica(English Edition) 2020年第S01期94卷 26-27页

作者： LI Xiucai NIU Manlan CAI Qianru WU Qi SUN Yi yuan xiaoyu LI Chen Hefei University of Technology Hefei Anhui 230009

Slab breakoff originally denotes the detachment of dense subducted oceanic slab from the light subducted continental slab, which is driven by opposing buoyancy forces during continental collision(Davies and von Blanckenburg, 1995;von Blanckenburg and Davies, 1995). The breakoff of subducted oceanic slab can induce the upwelling of sub-slab asthenosphere through the slab window, and then heat the overriding lithospheric mantle resulting in the melting of its fertile layer within the metasomatic mantle wedge. The decompression partial melting of uprising asthenospheric mantle commonly produce mafic magma with depleted MORB-like geochemical signatures(Davies and von Blanckenburg, 1995;Cole et al., 2006;Wang et al., 2018), whereas the partial melting of enriched lithospheric mantle will produce mafic magma with alkaline, calc-alkaline or ultrapotassic features(von Blanckenburg and Davies, 1995). These mafic magmas rise into overlying lower crust and trigger crustal melting to generate the granitic magma. The North Qaidam tectonic belt(NQTB) records the evolutionary process of the South Qilian Ocean from subduction to closure. The subduction of oceanic and continental lithosphere to mantle depths is proven by the identification of oceanic-type and continental-type eclogites enclosed in crustal metapelite and gneiss from the North Qaidam tectonic belt(Song et al., 2006;Zhang et al., 2008;Zhang et al., 2010;Zhang et al., 2017). However, details of this process are not exactly constrained, in particularly, the closure timing of South Qilian Ocean. The study of characteristic mafic magmatism, combined with the previous studies of ultra-high pressure metamorphism, give us an excellent opportunity to trace the detailed processes associated with the transition from oceanic subduction to continental subduction, and assess the feasibility of slab breakoff in the North Qaidam tectonic belt. In this contribution, an integrated study of petrology, geochemistry, geochronology and Sr-

关键词： mafic igneous rocks mantle slab break-off North Qaidam early Paleozoic

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The Thermo-Hydraulic Analysis for Sub-Module of ITER HC-SB TBM Design

Southwestern Institute of Physics Annual Report

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Southwestern Institute of Physics Annual Report 2005年第1期 101-103页

作者： ZHAO Zhou FENG Kaiming WANG xiaoyu yuan Tao CHEN Zhi

As the ITER （international thermonuclear experiment reactor ） project is being carried out further, original parties （ EU, JA, RF ） of ITER had accomplished their ITER TBM （ test blanket module ） design in 2001. China joined the negotiation of 1TER project and planed to develop own TBM modules in 2003. A preliminary design description document （ DDD ） for the CH HCSB （ chinese helium-cooled solid breeder ） TBM module design had been completed at SWIP in 2004. A modified structure design based on the 2004 version had been carried out subsequently. Main modification of structure design is that the sub-module design is adopted instead of the previous integrative module design. The modified design enforces the reliability and the flexibility of TBM module structure. The integral TBM module consists of 9 sub-modules. The thermo-hydraulic analysis for sub-module is very important, because the sub-module as a relative independent module has the most basic function of the test blanket module, such as depositing heat, producing tritium, etc.

关键词： Sub-module Thermo-hydraulic analysis Temperature distribution

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两种智能卡芯片的ECDSA实现

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计算机工程 2005年第15期31卷 16-18页

作者：袁晓宇张其善北京航空航天大学电子信息工程学院北京100083

探讨了有限域GF(2n)上椭圆曲线密码算法基本理论、快速实现和ECDSA算法(椭圆曲线数字签名算法)实现的相关理论;然后采用INFINEON公司的携带域上求模运算的加速协处理模块(DDES-EC2)的智能卡芯片SLE66CL160S和SLE66CX320P,实现了基于有限... 详细信息

探讨了有限域GF(2n)上椭圆曲线密码算法基本理论、快速实现和ECDSA算法(椭圆曲线数字签名算法)实现的相关理论;然后采用INFINEON公司的携带域上求模运算的加速协处理模块(DDES-EC2)的智能卡芯片SLE66CL160S和SLE66CX320P,实现了基于有限域GF(2n)上密钥长度为163bits的椭圆曲线数字签名算法,并对这两种实现进行了对比分析;最后对实现进行测试,证明是成功高效的。

关键词：椭圆曲线密码体制 ECDSA 智能卡

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丝绸之路新疆段人文旅游资源景观空间研究

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干旱区资源与环境 2018年第9期32卷 203-208页

作者：李武陵袁小玉石河子大学政法学院石河子832000

以新疆(含兵团)339个人文旅游资源景观为研究样本,运用数据模型及空间分析等方法探析新疆人文旅游资源景观空间格局及成因。研究表明:1)新疆人文景观在地理空间上呈凝聚型分布状态,地带间分布差异大,北疆与南疆人文资源分布相对集中,东... 详细信息

以新疆(含兵团)339个人文旅游资源景观为研究样本,运用数据模型及空间分析等方法探析新疆人文旅游资源景观空间格局及成因。研究表明:1)新疆人文景观在地理空间上呈凝聚型分布状态,地带间分布差异大,北疆与南疆人文资源分布相对集中,东疆相对均衡;2)新疆人文旅游资源景区分布总体呈现"大分散—小聚集"空间格局,形成以乌鲁木齐市、伊宁市、喀什市为主核心的高密度分布区,环塔里木盆地绿洲走廊地带的次核心分布带;3)研究样本在地形地貌分布上具有环塔里木盆地断续"珍珠状"、天山北麓"条带状"、伊犁河谷与阿勒泰山脉"斑点状"的特点,同时空间布局具有交通指向性特征;4)先天性地形地貌约束、历史性古丝绸之路影响、后天性公路交通体系网建设、市场性各行政中心经济辐射成为影响新疆人文旅游资源景观空间分布的重要原因。

关键词：人文旅游资源景观空间分布兵团新疆

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公务员职务与职级并行制度的价值意蕴、现存问题及优化策略

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中州学刊 2021年第7期 20-26页

作者：常荔袁晓羽武汉大学政治与公共管理学院武汉430070

公务员职务与职级并行制度的提出与全面推广是新时代深化公务员分类改革、健全公务员激励保障机制的重要举措,在推进国家治理能力和治理体系现代化进程中发挥着举足轻重的作用。该制度突破了传统单轨道晋升的逻辑,完善了职级晋升的条件... 详细信息

公务员职务与职级并行制度的提出与全面推广是新时代深化公务员分类改革、健全公务员激励保障机制的重要举措,在推进国家治理能力和治理体系现代化进程中发挥着举足轻重的作用。该制度突破了传统单轨道晋升的逻辑,完善了职级晋升的条件,整合了多项改革措施,凸显出改革的人本导向、激励导向与系统思维。制度实施总体上取得了良好效果,但仍存在职级晋升向基层倾斜力度不足、晋升的竞争性条件的考核机制不完善、职务和职级并行晋升的协同性不足等问题。要通过优化职级晋升机构、完善公务员绩效考核机制、加强职务与职级并行晋升的协同发展、强化相关保障机制,实现制度优势的长效发挥。

关键词：公务员职务与职级并行整体性治理优化策略

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主权财富基金与次贷危机

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国家行政学院学报 2009年第2期 69-72页

作者：李翔袁晓雨上海大学上海200444

随着新兴市场国家大量贸易顺差的出现,主权财富基金(SWFs)成了全球瞩目的焦点。尤其是在次贷危机爆发之后,SWFs的频繁、大规模的投资活动为国际市场注入了大量的流动性,在一定程度上缓解了危机对全球经济造成的冲击。本文从研究SWFs的... 详细信息

随着新兴市场国家大量贸易顺差的出现,主权财富基金(SWFs)成了全球瞩目的焦点。尤其是在次贷危机爆发之后,SWFs的频繁、大规模的投资活动为国际市场注入了大量的流动性,在一定程度上缓解了危机对全球经济造成的冲击。本文从研究SWFs的现状入手,简单介绍了SWFs在次贷危机期间的主要投资活动,并选择五个SWFs的投资活动分析了SWFs的投资对被投资公司股票价格的影响,最后就SWFs的不透明性和缺乏政府监管两个问题提出了相应的政策建议。

关键词：主权财富基金次贷危机政府监管

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一种迭代正则化方法求解一类同时带有两个扰动数据的反向问题

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应用数学和力学 2023年第10期44卷 1260-1271页

作者：袁小雨冯晓莉张云西安电子科技大学数学与统计学院西安710126

该文考虑了一类带有扰动扩散系数和扰动终值数据的空间分数阶扩散方程反向问题,从终值时刻的测量数据来反演初始时刻数据.该问题是严重不适定的,因此该文提出了一种迭代正则化方法来处理该反向问题,并利用先验正则化参数选取规则得到了... 详细信息

该文考虑了一类带有扰动扩散系数和扰动终值数据的空间分数阶扩散方程反向问题,从终值时刻的测量数据来反演初始时刻数据.该问题是严重不适定的,因此该文提出了一种迭代正则化方法来处理该反向问题,并利用先验正则化参数选取规则得到了正则化解和精确解之间的误差估计,最后进行了一些数值模拟,验证了方法的有效性.

关键词：空间分数阶扩散方程反向问题不适定性迭代正则化

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Preliminary Design of ITER TBM with Helium-Cooled and Solid Breeder Concept

Southwestern Institute of Physics Annual Report

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Southwestern Institute of Physics Annual Report 2005年第1期 87-89页

作者： FENG Kaiming ZHANG Guoshu WANG xiaoyu CHEN Zhi yuan Tao ZHAO Zhou LI Zengqiang GAO Chunming HU Gang

ITER will play a very important role in first integrated blanket testing in fusion environment. Some DEMO blanket relevant technologies, such as tritium self-sufficiency, extraction of high-grade heat, design criteria... 详细信息

关键词： ITER TBM Tritium breeder

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