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Surface characteristics,corrosion behavior,and antibacterial property of Ag-implanted NiTi alloy

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Rare Metals 2013年第2期32卷 113-121页

作者： Peng luo Sheng-Nan Wang ting-ting Zhao Yan Li School of Materials Science and Engineering Beijing University of Aeronautics and Astronautics Beijing Key Laboratory for Advanced Functional Materials and Thin Film Technology Beijing University of Aeronautics and Astronautics

NiTi shape memory alloy was modified by Ag ion implantation with different incident doses to improve its antibacterial property. The atomic force microscopy, auger electron spectroscopy, and X-ray photoelectron spectroscopy show that the surface of NiTi alloy is covered by TiO2 nano-film with embedded pure Ag with a peak concentration of 5.0 at% at the incident dose of 1.5 x10^17 ***-a, and Ni concentration is reduced in the super- ficial surface layer. The surface roughness reaches the maximum value nearly twice higher than the control sample at the incident dose of 1.5x10^17 ***-2. The potentiodynamic anodic polarization curves show that the Ag-implanted NiTi samples possess higher self-corrosion potential （Ecorr） and lower self-corrosion current density （icor0 but lower breakdown potential （Ebr）. Therefore, the corrosion resistance of the Ag-NiTi is comparable to, if not better than, the untreated NiTi. The antibacterial tests reveal that there is a distinct reduction of the germ numbers on the Ag-NiTi, which is due to the direct contact between Ag and germ, and enhanced by the leaching Ag ions.

关键词： NiTi Ag Ion implantation Corrosionresistance Antibacterial property

Exploring practical methods for detecting k-nonseparability in multipartite quantum states

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 255-256页

作者： Shunlong luo Academy of Mathematics and Systems Science Chinese Academy of Sciences

Quantum entanglement, referred to as “spooky action at a distance” by Einstein, is not only an intriguing and fascinating feature of quantum theory challenging our classical intuitions about locality and correlations, but also has practical and profound implications for quantum technologies. Initially described by Einstein, Podolsky and Rosen, as well as by Schro¨dinger, entanglement now has become a basic and crucial ingredient for both foundational and experimental investigations of the quantum world.

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A constitutive model for granular soils

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Science China(Technological Sciences) 2018年第10期61卷 1546-1555页

作者： YAO YangPing LIU Lin luo ting School of Transportation Science and Engineering Beihang University

A simple constitutive model is presented to describe the mechanical behaviors of granular soils in a large stress range. A novel normal compression line(NCL) is first expressed by introducing a limit void ratio(e_L) in the double logarithmic ***, a state parameter(ξ) is defined to quantify the current state of granular soils, and a unified hardening parameter(H)that is a function of the state parameter(ξ) is developed to govern the hardening process of the drop-shaped yield *** with flow rule, a constitutive model for granular soils is proposed. Finally, the comparison between the predictions and the test results of Cambria sand and Coarse-grained material indicates that the model is able to describe the mechanical behaviors of granular soils in a large stress range.

关键词： granular soils constitutive model particle crushing

A Combined Genomics and Phenomics Approach is Needed to Boost Breeding in Sugarcane

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Plant Phenomics 2023年第3期5卷 395-398页

作者： ting luo Xiaoyan Liu Prakash Lakshmanan Key Laboratory of Sugarcane Biotechnology and Genetic Improvement(Guangxi) Ministry of Agriculture and Rural AffairsSugarcane Research InstituteGuangxi Academy of Agricultural SciencesGuangxi Key Laboratory of Sugarcane Genetic ImprovementGuangxi Academy of Agricultural SciencesNanning 530007China Interdisciplinary Research Center for Agriculture Green Development in Yangtze River Basin College of Resources and EnvironmentSouthwest UniversityChongqing 400716China Queensland Alliance for Agriculture and Food Innovation University of QueenslandSt Lucia 4067QLDAustralia

Sugarcane is a major food and bioenergy crop *** pro-duces~80%of sugar consumed worldwide,with Brazil and India together accounting for 61%of world sugarcane produc-tion in 2021[1].Globally,sugarcane is the 5th largest crop by production value and acreage,and it is also the second largest bioenergy crop[1,2].Modern sugarcane is an interspecific hybrid(Saccharum species hybrid)of wild progenitor species Saccharum officinarum(2n=80;x=10)andSaccharumspon-taneum(2n=40 to 130;x=8)[3].This genetically complex polyploid crop with varied chromosome numbers(100 to 130)has one of the largest genomes(~10 kb)among plants,making sugarcane breeding considerably slow and challenging.

关键词： breeding sugar globally

宫颈癌筛查妇女高危型人乳头瘤病毒感染现状及影响因素研究:基于成都市45万人群

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中国全科医学 2025年第2期28卷 213-219页

作者：舒婷兰志鹏巫霞罗映娟杨柳电子科技大学医学院附属妇女儿童医院·成都市妇女儿童中心医院保健部四川省成都市611731

背景宫颈癌是女性常见恶性肿瘤之一,其病因明确,通过规范筛查可以有效降低宫颈癌发病率。人乳头瘤病毒(HPV)检测是WHO推荐的首选宫颈癌筛查方法,了解成都市高危型人乳头瘤病毒(hrHPV)感染状况,对优化成都市宫颈癌筛查方案具有重要意义... 详细信息

背景宫颈癌是女性常见恶性肿瘤之一,其病因明确,通过规范筛查可以有效降低宫颈癌发病率。人乳头瘤病毒(HPV)检测是WHO推荐的首选宫颈癌筛查方法,了解成都市高危型人乳头瘤病毒(hrHPV)感染状况,对优化成都市宫颈癌筛查方案具有重要意义。目的分析成都市35~64岁参加宫颈癌筛查人群的hrHPV感染现状和宫颈病变患者的hrHPV亚型感染分布情况,探讨hrHPV阳性检出率的相关影响因素。方法从“成都市育龄妇女生殖健康数据库”收集2023年参加成都市免费宫颈癌筛查的459433例个案数据,分析不同hrHPV基因型感染总体分布情况以及宫颈病变患者的hrHPV亚型感染分布情况,比较不同特征人群hrHPV感染情况,并构建多水平Logistic回归模型分析hrHPV检出阳性情况的相关因素。结果459433例中,hrHPV阳性检出率为11.65%(53509/459433),hrHPV感染随年龄的增长呈上升趋势(χ_(趋势)^(2)=1501.082,P<0.001)。82.39%(131/159)的宫颈癌患者感染HPV 16或18亚型,以单纯感染HPV 16亚型为主(52.20%,83/159)。多水平Logistic回归分析结果显示,年龄、文化程度、婚姻状况、绝经状态、避孕方式、妊娠次数、分娩次数为hrHPV阳性检出情况的影响因素(P<0.05)。结论成都市女性hrHPV阳性检出率略低于全国平均水平。在筛查过程中,要重视健康教育与随访工作,特别是对HPV 16或18亚型阳性者的后续随访工作。开展宫颈癌筛查宣传工作时应特别关注年长者、文化程度较低者、未婚或离异/丧偶者、已绝经者、未避孕或采用避孕套外的其他避孕方式者、妊娠或分娩2次以上者等重点人群,加强宫颈癌防治核心知识、生殖健康知识等的宣传,提高妇女健康素养。

关键词：宫颈癌乳头状瘤病毒感染高危型人乳头瘤病毒筛查影响因素分析

Asymptotic state behaviour and its modeling for saturated sand

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Science China(Technological Sciences) 2009年第8期52卷 2350-2358页

作者： luo ting YAO YangPing CHU Jian Department of Civil Engineering Beihang UniversityBeijing 100083China Department of Civil Engineering Nanyang Technological UniversitySingapore

A new double hardening elasto-plastic model is proposed in this paper based on the existing unified hardening model (UH model). By assuming that there is part coupling effect between the plastic volumetric strain and plastic shear strain, hardening parameters consisting of a coupled and an uncoupled components are adopted in this model. A unique feature of this model is that it can describe not only the conventional drained and undrained behaviors of soil, but also the stress-strain relationships of soil under partially drained conditions which can be volumetric compression or dilation. Adopting the asymptotic state concept, simple equations for estimating the limiting stress ratio under undrained or earth pressure at rest (i.e. K0) conditions are derived. The new model is relatively simple to be adopted in practice for two reasons. First, the same soil parameters as in Cam-clay model are used except the addition of one extra parameter, the stress ratio at the characteristic state. Second, all the parameters can be determined using conventional triaxial compression tests.

关键词： sand asymptotic state double hardening constitutive model partially coupled

The Subvariety Lattice of the Join of Two Semigroup Varieties

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Acta Mathematica Sinica,English Series 2009年第6期25卷 971-982页

作者： Wen ting ZHANG Yan Feng luo Department of Mathematics Lanzhou University Lanzhou 730000 P. R. China

The join A ∨ B of two semigroup varieties A and B is investigated. The latrine of subvarieties of A ∨ B is completely described, It is shown that this lattice is finite and non-modular and that all varieties in it a... 详细信息

关键词： semigroups varieties identities lattice

In situ polymerization of poly(3,4-ethylenedioxythiophene)protective layer towards stable zinc anode

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Nano Research 2025年第1期18卷 382-394页

作者： Debin luo Peng Zhou Xiaowei Lv Panpan Sun Xiaohua Sun Hewei Zhao College of Materials and Chemical Engineering Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion MaterialsChina Three Gorges UniversityYichang 443002China Hubei Three Gorges Laboratory Yichang 443007China School of Chemistry Beihang UniversityBeijing 100191China

Aqueous zinc-ion devices are considered promising candidates for energy storage due to their high safety,low cost and relatively high energy ***,the dendrite growth,hydrogen evolution reaction(HER)and corrosion of the zinc anode significantly limit the development of Zn-ion ***,an inexpensive poly(3,4-ethylenedioxythiophene)(PEDOT)protective layer was constructed in situ on the Zn surface using electropolymerization to suppress dendrite growth and side reactions,thereby enhancing the reversibility of *** and theoretical calculations revealed that this hydrophilic protective layer promotes the desolvation process of hydrated Zn^(2+)and facilitates the transport of zinc ions,thus improving the thermodynamic and kinetic properties of Zn^(2+)deposition and inhibiting interfacial side ***,the optimized PEDOT@Zn symmetric battery exhibited a cycling stability exceeding 1250 h at 0.5 mA·cm^(-2)and 0.25 mAh·cm^(-2),with a significantly reduced overpotential(from 91.8 to 35 mV).With the assistance of the PEDOT protective layer,the PEDOT@Zn//Cu battery maintained approximately 99.5%Coulombic efficiency after 450 ***-situ scanning electron microscopy(SEM)and in situ optical microscopy characterizations further confirmed that the PEDOT protective layer can effectively suppress the growth of zinc ***,the Zn-ion capacitors assembled by the PEDOT@Zn and activated carbon also demonstrated outstanding cycling stability.

关键词： zinc-ion devices zinc anode poly(3 4-ethylenedioxythiophene)(PEDOT) dendrite desolvation process

Exercise Prescription: Pioneering the “Third Pole” for Clinical Health Management

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Research 2024年第3期6卷 469-471页

作者： Zhiwen luo ting Zhang Shiyi Chen Department of Sports Medicine Huashan HospitalFudan University.Shanghai 200040.China Department of Integrative Medicine Huashan HospitalFudan UniversityShanghaiChina.

Originating from Western medicine,the concept of“exercise prescription”has gradually gained recognition and promotion in *** to the traditional medicinal prescription,exercise prescription offers scientific,individualized exercise recommendations to those willing or needing to use exercise as a means of treating ailments,preventing diseases,or enhancing physical constitution[1].This advice is prescribed formally,detailing elements such as the type of exercise,frequency,intensity,duration,and *** objectives are straightforward:to treat existing illnesses and to prevent potential *** specializing in sports medicine and qualified sports rehabilitation therapists can prescribe such exercise directives,ensuring that recipients get the most appropriate exercise *** prescription is suitable for a diverse demographic,from teenagers to the elderly,and from the health-conscious to those suffering from various chronic diseases.

关键词： prescription Pioneer prescribed