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Multi-performance evaluation of high-throughput accelerated corrosion test for high-strength low-alloy 921. steel

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Journal of Iron and Steel Research International 2024年第5期31卷 1260-1278页

作者： Cong-cong Du ming-{1. Qin Zhan-fang Wu Dong-ling Li Lei Zhao Xiang-yang Li Hai-zhou Wang Beijing Advanced Innovation Center for Materials Genome Engineering National Center for Materials Service SafetyUniversity of Science and Technology BeijingBeijing100083China china Iron and Steel Research Institute Group Co. Ltd.Beijing100081China Beijing Advanced Innovation Center for Materials Genome Engineering Central Iron and Steel Research InstituteBeijing100081China

The corrosion behavior of high-strength low-alloy 921. steel in a simulated marine atmospheric environment was studied using a high-throughput experimental *** corrosion behavior,corrosion morphology,and corrosion products of 921. steels were analyzed using various tech{1.ques,including corrosion mass loss method,polarization curve,white-light interferometry,scan{1.ng electron microscopy,energy-dispersive spectrometry,microbeam X-ray fluorescence spectrometry,X-ray diffraction tech{1.que,and X-ray photoelectron *** test results indicated that 921. steel exhibits better corrosion resistance than Q450NQR1.steel in simulated harsh atmospheric environments,as evidenced by a lower corrosion mass loss rate throughout the corrosion *** corrosion products of both steels consisted ofα-FeOOH,Fe_(3)O_(4),andγ-FeOOH,withα-FeOOH being more prevalent in the rust layer of 921. steel than in Q450NQR1.*** inner rust layer of 921. steel also exhibited an appositional enrichment region of Cr,{1.,Mo,and V,leading to its superior corrosion resistance compared to that of Q450NQR1.*** efficacy of high-throughput accelerated corrosion experimental methods was highlighted for evaluating the corrosion resistance of steel materials in harsh environmental *** findings suggest that 921. steel exhibits better corrosion resistance compared to Q450NQR1.steel and has the potential to be more suitable in harsh marine atmospheric *** characterization of the rust layer structures and composition reveals the parallel enrichment of certain elements in the inner rust layer of 921. steel,which enhances its corrosion resistance.

关键词： atmospheric corrosion High-throughput experimental method High-strength low-alloy steel Corrosion characteristics Rust layer Element enrichment

Amorphous niMo_(3)S_(1.)/nickel foam integrated anode for lithium-ion batteries

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Tungsten 2024年第2期6卷 438-446页

作者： ming-Xin Shi Min Wu Shan-Shan Xiao Shan-Ping Liu Rui-Qi Yao Ying-Qi Li Yong-Hui Wang Yang-Guang Li {1.-Qiao Tan Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education Faculty of ChemistryNortheast Normal UniversityChangchun 130024China School of Materials Science and Engineering Jilin Jianzhu UniversityChangchun 130118China Institute Charles Gerhardt Montpellier Universite de MontpellierCentre National de la Recherche Scientifi quePlace E.Bataillon34095 Montpellier Cedex 05France

Although crystalline anode materials with long-range ordered lattice structure are in favor of facilitating the electron transfer,their structures are easily disrupted during long-term cycling due to the continuous embedding/de-embedding of lithium *** contrast,the amorphous materials have abundant defects and lithium ion storage sites,refl ecting a superior reaction kinetics and long-term cycling ***,we synthesize an integrated hybrid anode by in-situ loading amorphous niMo_(3)S_(1.)nanosheets on nickel foam *** ting from the introduction of ni^(2+)that amorphizes the molybdenumsulfur clusters,the assembled lithium ion battery based on the integrated niMo_(3)S_(1.)/nickel foam anode delivers a specifi c capacity up to 1.59 mA·h·g^(−1.at a current density of 0.6 A·g^(−1.and exhibits superior rate/cycling performance.

关键词： Molybdenum-sulfur clusters Amorphous Integrated anode Crystalline Lithium-ion batteries

Malignant glaucoma treated by low-dose laser cycloplasty: a 1.year multicenter prospective noncomparative study

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International Journal of Ophthalmology(English edition) 2024年第7期17卷 1248-1254页

作者： Hai-Shuang Lin Xiao-Ping Xu Xuan-Li Zheng Ji-Bing Wang Su-Jie Fan Zuo-HongWu Su-Mian Cheng Li-Jun Zhao Qin-hua Cai Shao-Dan Zhang Shan-Shan Liu Ai-Guo Lyu Ying Zhang Hong Chen Dan-ni Jiang Wu-Liang Li Nathan Congdon Clement C Tham ming-Guang He Yuan-Bo Liang the Malignant Glaucoma TreatmentTrial Study(MGTT)Group Wenzhou Medical university Wenzhou 325027Zhejiang ProvinceChina ningbo Eye Hospital Ningbo 315100Zhejiang ProvinceChina Weifang Eye Hospital Weifang 261000Shandong ProvinceChina Handan Eye Hospital Handan 056000Hebei ProvinceChina Aier Eye Hospital(Wuhan) Wuhan 430061Hubei ProvinceChina Hebei Eye Hospital Xingtai 054001Hebei ProvinceChina The Third People’s Hospital of Dalian Dalian 116033Liaoning ProvinceChina First Affiliated Hospital of Suzhou university Suzhou 215031Jiangsu ProvinceChina National Clinical Research Center for Ocular Diseases Eye HospitalWenzhou Medical UniversityWenzhou 325027Zhejiang ProvinceChina Glaucoma Research Institute Wenzhou Medical UniversityWenzhou 325027Zhejiang ProvinceChina Centre for Public Health Queen’s University BelfastBelfast BT71NNUK Orbis International New YorkUSA department of Ophthalmology and Visual {1. the Chinese University of Hong KongHong Kong SAR 999077China Centre for Eye Research Australia University of MelbourneRoyal Victorian Eye and Ear HospitalEast Melbourne 3000VICAustralia 不详

AIM:To report a one-year clinical outcomes of low-dose laser cycloplasty(LCP)among malignant glaucoma ***:In this prospective,multicenter,noncomparative clinical study,participants with malignant glaucoma were recruited and underwent LCP at eight ophthalmic centers in *** were followed up at 1.k,1.3,6,and *** pressure(IOP),number of glaucoma medications,anterior chamber depth(ACD),and complications were *** success was defined as the reformation of the anterior chamber based on slit-lamp *** was defined by the presence of a shallow orﬂat anterior chamber after initial recovery from ***:A total of 34 eyes received *** IOP and medications decreased from 36.1.1..5 mm Hg with 3.3±1.5 glaucoma medications pre-treatment to 20.9±9.8 mm Hg(P1.with 2.9±1.6 medications(P=0.046)at 1.,and 1..4±6.7 mm Hg(P1.with 1.3±1.7 medications(P1.at *** ACD increased from 1.1.0.8 mm at baseline to 1.7±1.0 mm and to 2.0±0.5 mm at 1. and 1.mo,respectively.A total of 32(94.1.)eyes achieved initial anatomical *** follow-up,2(5.9%)eyes failed and 8(23.5%)eyes relapsed,yielding a 1.-month anatomical success rate of 64.3%.Complications including anterior synechia(8.82%),choroidal/ciliary detachment(5.88%)and hypopyon(2.94%)were observed within ***:LCP is simple,safe,and effective in reforming the anterior chamber in malignant glaucoma.

关键词： anterior chamber reformation intraocular pressure low-dose laser cycloplasty malignant glaucoma anatomical success

Simulation Experiments of Land Surface Physical Processes and Ecological Effect over Different Underlying Surface

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地球科学进展 2004年第S1期19卷 15-20页

作者： LIU Shu-hua~(1.2), JIANG Hao-yu, HU Fei~2 LIU Hui-zhi~2 LIANG Fu-{1.~1. WANG Jiang-hua~1.1. Group of Atmosphere Boundary Layer and turbulence, Ministry Laboratory of Storm and Drought Flood Damage, department of atmospheric sciences the School of Physics Peking university, Beijing 1.0871. china 2. State Key Laboratories of Atmosphere Physics and Chemistry, Institute of atmospheric Physics, Chinese Academy of Science, Beijing 1.0029, china)

Based on the existing Land Surface Physical Process Models(Deardorff, Dickinson, LIU, Noilhan, Seller, ZHAO), a Comprehensive Land Surface Physical Process Model (CLSPPM) is developed by considering the different physical processes of the earth's surface-vegetation-atmosphere system more completely. Compared with SiB and BATS, which are famous for their detailed parameterizations of physical variables, this simplified model is more convenient and saves much more computation time. Though simple, the feas...

关键词： Comprehensive land surface Physical process model (CLSPPM) Simulation experiment Land surface physical process Ecological effect.

nickel-catalyzed carbonylative four-component 1.4-dicarbofunctionalization of 1.3-enynes

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Science china Chemistry 2024年第6期67卷 2029-2038页

作者： Yan Zhao Qi-Chao Shan Hong Xin Pin Gao Xu Yang Xin-hua Duan Li-Na Guo department of Chemistry School of ChemistryXi’an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy StorageMaterials and DevicesMinistry of EducationXi’an Jiaotong UniversityXi’an710049China School of Electrical Engineering Xi’an Jiaotong UniversityXi’an710049China

An efficient ni-catalyzed four-component 1.4-carbocarbonylation of 1.3-enynes with activated alkyl halides and arylboronic acids under atmospheric pressure of CO is *** tuning the electronic and steric effects of alkyl radicals,both electronrich and electron-deficient 1.3-enynes were compatible with this *** protocol features mild conditions,broad substrate scope,excellent functional group compatibility and facile gram-scale synthesis,providing a practical approach to the quaternary carbon center-containing allenyl *** study revealed that the acyl-niIIspecies plays an important role in both the coupling and the alkyl radical generation processes.

关键词： ni catalysis four-component 1 4-carbocarbonylation 1 3-enynes

VARIATIONAL ITERATION SOLVING METHOD FOR SEA-AIR OSCILLATOR MODEL OF INTERDECADAL CLIMATE FLUCTUATIONS

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Chinese Geographical Science 2005年第3期 37-40页

作者： MO Jia-qi1, 2, LIN Yi-hua3, WANG Hui4 (1. department of Mathematics,Anhui Normal university,Wuhu 241000,P. R. china 2. Division of Computational Science E-Institutes of Shanghai Universities at Shanghai Jiaotong university,Shanghai 200240,P. R. china 3. Institute of atmospheric Physics,Chinese Academy of sciences,Beijing 100029,P. R. china 4. Chinese Academy of Meteorological sciences,Beijing 100081,P. R.china) department of Mathematics A nhui Normal UniversityWuhu 241000P. R. China Division of Computational Science E-Institutes of Shanghai Universities at Shanghai Jiaotong UniversityShanghai 200240P. R. China Institute of atmospheric Physics Chinese Academy of SciencesBeijing 100029P. R. China Chinese Academy of Meteorological sciences Beijing 100081P. R. China

atmospheric physics is a very complicated natural phenomenon and needs to simplify its basic models for the sea-air oscillator. And it is solved by using the approximate method. The variational iteration method is a simple and valid method. In this paper the coupled system for a sea-air oscillator model of interdecadal climate fluctuations is considered. Firstly, through introducing a set of functions, and computing the variations, the Lagrange multipliers are obtained. And then, the generalized expressions of variational iteration are constructed. Finally, through selecting appropriate i{1.tial iteration from the iteration expressions, the approximations of solution for the sea-air oscillator model are solved successively.

关键词： nonlinear variational iteration El nio-Southern Oscillator model

青少年特发性脊柱侧弯胸腰椎生理曲度的影像学研究

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中国骨伤 2024年第1期37卷 26-32页

作者：张浩阳陈妮桑石国庆叶鑫李帅林李晓明范炳华潘英森应晓明浙江中医药大学第三临床医学院浙江杭州310053 浙江中医药大学附属第三医院推拿科浙江杭州310004

目的:探讨青少年特发性脊柱侧弯(adolescent idiopathic scoliosis,AIS)胸腰椎生理曲度变化情况以及不同类型侧弯之间胸腰椎生理曲度的差异。方法:自201.年1.至2021.1.月回顾性分析305例脊柱全长正侧位X线片的青少年患者,根据有无侧... 详细信息

目的:探讨青少年特发性脊柱侧弯(adolescent idiopathic scoliosis,AIS)胸腰椎生理曲度变化情况以及不同类型侧弯之间胸腰椎生理曲度的差异。方法:自201.年1.至2021.1.月回顾性分析305例脊柱全长正侧位X线片的青少年患者,根据有无侧弯分为正常组和侧弯组。正常组1.9例,男79例,女1.0例;年龄1.~1.(1..84±2.1.)岁。侧弯组1.6例,男33例,女93例;年龄1.~1.(1..92±2.20)岁。观察并比较两组Risser征、胸椎后凸角(thoracic kyphosis,TK)与腰椎前凸角(lumbarlordosis,LL),并分析比较不同性别、不同程度侧弯与不同节段侧弯TK值与LL值。结果:侧弯组在女性比率(P=0.001.、年龄(P1.方面均明显高于正常组;Risser征方面,正常组低级别骨化程度比率明显高于侧弯组(P=0.038)。侧弯组TK值明显小于正常组(P1.,而两组LL值比较,差异无统计学意义(P=0.1.7)。男性与女性之间比较,TK值与LL值差异无统计学意义。轻度侧弯TK值明显大于中度侧弯(P0.05)。不同节段侧弯之间TK值与LL值比较,差异均无统计学意义(P>0.05)。结论:胸椎与腰椎生理曲度均与性别无关;AIS患者胸椎生理曲度变小,但是腰椎生理曲度基本不变。轻度AIS患者的胸椎生理曲度大于中度AIS患者,但是腰椎生理曲度在轻中度患者之间几乎无差异,且与正常青少年相似。AIS患者胸腰椎生理曲度变化可能与脊柱前柱相对生长过快有关,其具体机制有待进一步研究。

关键词：青少年特发性脊柱侧弯胸椎后凸角腰椎前凸角生理曲度

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复杂测压管路系统动态特性的通用分析程序

同济大学学报（自然科学版） 2003年第6期31卷 702-708页

作者：谢壮宁顾明倪振华汕头大学土木工程系广东汕头515063 同济大学桥梁工程系上海200092

利用流体管道耗散模型 ,建立可用于计算复杂传压管路动态特性的方法和通用计算程序 ,结果用于脉动风压测量的畸变信号修正 .与相关文献比较 ,使用本方法可以灵活地处理更为复杂的管路情况 .定义了衡量管路动态特性品质的控制目标函数 ,... 详细信息

利用流体管道耗散模型 ,建立可用于计算复杂传压管路动态特性的方法和通用计算程序 ,结果用于脉动风压测量的畸变信号修正 .与相关文献比较 ,使用本方法可以灵活地处理更为复杂的管路情况 .定义了衡量管路动态特性品质的控制目标函数 ,并导出了该函数对各种管路参数灵敏度的解析表达式 ,以便于提高管路优化计算的效率 .最后结合两个算例 ,证明了本方法的有效性 .根据计算结果 ,推荐了适合于简单逐点测压试验应用的一组简单优化管路配置方案 ,可供脉动风压测试风洞试验中的传压管路设计时参考 .

关键词：风洞试验管道脉动风压气动平均方法频率响应函数优化

Superior Ductile and High-barrier Poly(lactic acid)Films by Constructing Oriented Nanocrystals as Efficient Reinforcement of Chain Entanglement Network and Promising Barrier Wall

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Chinese Journal of Polymer Science 2022年第10期40卷 1201-1212,I0009页

作者： Lin Zhou Ping-Ping Xu Shi-Hao ni Ling Xu Hao Lin Gan-Ji Zhong {1.-Dong {1.ng Zhong-ming Li Collge of Polymer Science and Engineering State Key Laboratory of Polymer Materials EngineeringSichuan UniversityChengdu 610065China

It is a daunting task to develop a promising strategy at an industrial scale for simultaneously ameliorating ductility and gas barrier performance of poly(lactic acid)(PLA)films in the application of green *** this work,biaxial stretching and constrained annealing were employed to prepare transparent PLA films with superior ductility and barrier *** oriented nano-sized crystals induced by biaxial stretching were developed into regularαform during constrained annealing,which could not only serve as“nano-barrier wall”to impede the diffusion and dissolution of gas molecules,but also strengthen amorphous chain entanglement network as physical crosslink to enhance *** a result,the as-prepared PLA films exhibited an outstanding comprehensive performance with a low oxygen and water vapor permeability coefficient of 0.733×1.^(-1.) cm^(3)·cm·cm^(-2)·s^(-1.·Pa^(-1. and 3.82×1.^(-1.) g·cm·cm^(-2)·s^(-1.·Pa^(-1.,respectively,outstanding ductility with elongation at break of 66.0%,high yield strength of 84.2 MPa,and good transparency of more than 80%at 550 *** new insight in the relationship between microscopic amorphous and crystalline structure and macroscopic performance is conducive to alleviating the intrinsic defects of brittle and insufficient barrier PLA films without the aid of any heterogenous modifiers,facilitating their widespread commercialization in the booming sustainable packaging market.

关键词： Poly(lactic acid)films Biaxial stretching Constrained annealing Gas barrier properties Ductility