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现代电信理论与系统下 1版

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*** impact of visual impairment on the Montreal Cognitive Assessment

1982年

作者：（美）斯塔克（H.stark）（美）屠特尔（F.B.Tuteur）郭庆勋等译

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Annals of Eye science 2019年第1期 208-208页

作者： Elliott Morrice Zoey stark Caitlin Murphy Walter Wittich Aaron Johnson Department of Psychology Concordia UniversityMontrealQCCanada CRIR/Centre de Réadaptation MAB-Mackay du CIUsss du Centre Ouest del’Île de Montréal QCCanada Optometry University of MontrealQCCanada

Background:Cognitive assessments,such as the Montreal Cognitive Assessment(MoCA),use components that assume intact sensory abilities,however,adults show concomitant decreases in visual acuity with increasing *** on cognitive assessments are typically lower for individuals with visual impairments compared to individuals with normal/corrected to normal *** it is not clear if lowers scores on cognitive assessments are due to the assessments relying on visual stimuli,or if individuals with visual impairments are actually more likely to have cognitive *** we simulated visual impairments,i.e.,reduced visual acuity and contrast sensitivity,in young healthy adults to determine how this impacts their scores on a measure of cognitive ability,i.e.,the ***:Participants(n=19)completed one of the three version of the MoCA under three conditions(20/20,simulated 20/80,simulated 20/200).The MoCA was administered following the clinical *** participants that scored>26(i.e.,normal cognitive function)at 20/20 were included in the *** comparison,we included MoCA data from a sample of older adults with normal vision(n=19,Mage=74,Acuity M=0.04 logMAR,sD=0.16)or visual impairment(n=19,Mage=79,Acuity M=0.35 logMAR,sD=0.3).Results:Acuity of participants at 20/20(M=0.06 LogMAR,sD=0.1),simulated 20/80(M=0.63,sD=0.18)and simulated 20/200(M=0.88,sD=0.19)showed that the participants experienced simulated acuity loss with the *** the MoCA scores,we found a main effect of acuity(F=16.22,Pst hoc comparisons showed a significant difference between scores with a 20/20 acuity(M=27.26,sD=0.93)and 20/80(M=24.74,sD=1.66,t=5.62,ptukeysD=1.46,t=3.63,ptukey=0.002,Cohen’s d=1.33).However,no difference was observed between 20/80 and 20/200(t=−1.99,ptukey=0.125,d=0.572).The MoCA scores in older adults with normal vision(M=27.32,sD=2.41)and with visual impa

关键词： Visual impairment cognitive assessment simulated visual impairment Montreal Cognitive Assessment(MoCA)

青光眼视网膜神经纤维层厚度的光学相干断层扫描纵向评估

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美国医学会眼科杂志（中文版） 2005年第4期17卷 214-220页

作者： Gadi Wollstein Joel s. schuman Lori L. Price Ali Aydin Paul C. stark Ellen Hertzmark Edward Lai Hiroshi Ishikawa Cynthia Mattox James G. Fujimoto Lelia A. Paunescu 刘春（译）朱志忠（校） New England Eye Center Biostatistics Research Center Division of Clinical Care Research Department of Epidemiology Harvard School of Public Health Boston Department of Electrical Engineering and Research laboratory of Electranics Massachusetts Institute of Technology Cambridge Tufts-New England Medical Center Tufts University School of Medicine Boston Mass UPMC Eye Center Department of Ophthahnology University of Pittsburgh School of Medicine Pittsburgh Pa 不详

目的：纵向评估光学相干断层扫描（OCT）视盘周围神经纤维层厚度测量，并将这些检查与临床状态和自动视野计检查作横向比较。方法：对参与前瞻性纵向研究的青光眼或疑似青光眼患者64只眼（37例）作回顾性评估。所有参与者每6个月作一次... 详细信息

目的：纵向评估光学相干断层扫描（OCT）视盘周围神经纤维层厚度测量，并将这些检查与临床状态和自动视野计检查作横向比较。方法：对参与前瞻性纵向研究的青光眼或疑似青光眼患者64只眼（37例）作回顾性评估。所有参与者每6个月作一次全面的临床评估、视野检查和OCT。视野进展按可重复性测量的视野平均偏差至少比基线降低2dB，OCT进展按可重复性测量视网膜神经纤维层平均厚度至少变薄20pro。结果：每个患者在中位值为4．7年的随访中有5个可使用的OCT扫描。青光眼和疑似青光眼患者之间视网膜神经纤维层厚度线性回归斜度的差异对所有变量均不显著；然而，Kaplan-Meier生存曲线分析显示视野比OCT测量有较高的进展率。在随访期间66％的眼是稳定的。22％只有OCT进展，9％单有视野平均偏差进展。3％视野和OCT都有进展。结论：OCT比全自动视野计对辨别青光眼进展有更大的可能性。这可能反映OCT的敏感性或在常规方法发现之前其真实损害就能被OCT发现。

关键词：视网膜神经纤维层厚度光学相干断层扫描青光眼患者全自动视野计前瞻性纵向研究重复性测量视野检查平均偏差随访期间 OCT

An apatite U-Pb thermal history map for the northern Gawler Craton,south Australia

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Geoscience Frontiers 2018年第5期9卷 1293-1308页

作者： James W.Hall stijn Glorie Anthony J.Reid samuel C.Boone Alan s.Collins ANDrew Gleadow Tectonics Resources and Exploration (TRaX) Department of Earth Sciences University of Adelaide Geological survey of south Australia Department of State Development school of Earth sciences The University of Melbourne

Apatite U-Pb thermochronology was applied to granitoid basement samples across the northern Gawler Craton to unravel the Proterozoic, post-orogenic, cooling history and to examine the role of major fault zones during cooling. Our observations indicate that cooling following the ~2500 Ma sleaford Orogeny and ~1700 Ma Kimban Orogeny is restricted to the Christie and Wilgena Domains of the central northern Gawler Craton. The northern Gawler Craton mainly records post-Hiltaba Event(~1590 Ma) U-Pb cooling ages. Cooling following the ~1560 Ma Kararan Orogeny is preserved within the Coober Pedy Ridge,Nawa Domain and along major shear zones within the south-western Fowler Domain. The Nawa Domain samples preserve U-Pb cooling ages that are >150 Ma younger than the samples within the Coober Pedy Ridge and Fowler Domain, indicating that later(~1300 Ma) fault movement within the Nawa Domain facilitated cooling of these samples, caused by arc collision in the Madura Province of eastern Western Australia. When compared to^(40)Ar/^(39) Ar from muscovite, biotite and hornblende, our new apatite U-Pb ages correlate well, particularly in regions of higher data density. Our data also preserve a progressive younging of U-Pb ages from the nucleus of the craton to the periphery with a stark contrast in U-Pb ages across major structures such as the Karari shear Zone and the southern Overthrust, which indicates the timing of reactivation of these major crustal structures. Although this interpolation was based solely on thermochronological data and did not take into account structural or other geological data, these maps are consistent with the structural architecture of the Gawler Craton and reveal the thermal footprint of known tectonic and magmatic events in the Gawler Craton.

关键词： Apatite U-Pb Gawler Craton Karari shear Zone Thermochronology Hiltaba event

Isogeometric Collocation:A Mixed Displacement-Pressure Method for Nearly Incompressible Elasticity Dedicated to Professor Karl stark Pister for his 95th birthday

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Computer Modeling in Engineering & sciences 2021年第12期129卷 1125-1150页

作者： s.Morganti F.Fahrendorf L.De Lorenzis J.A.Evans T.J.R.Hughes A.Reali Department of Electrical Computer and Biomedical EngineeringUniversita degli Studi di PaviaPavia27100Italy Institute of Applied Mechanics Technische Universitat BraunschweigBraunschweig38106Germany Department of Mechanical and Process Engineering Zurich8092Switzerland Department of Aerospace Engineering sciences University of Colorado BoulderColorado80309USA Institute for Computational Engineering and sciences The University of Texas at AustinTexas78712USA Department of Civil Engineering and Architecture Universita degli Studi di PaviaPavia27100Italy

We investigate primal and mixed u−p isogeometric collocation methods for application to nearly-incompressible isotropic *** primal method employs Navier’s equations in terms of the displacement unknowns,and the mixed method employs both displacement and pressure *** benchmarks for what might be considered acceptable accuracy,we employ constant-pressure Abaqus finite elements that are widely used in engineering *** a basis of comparisons,we present results for compressible *** the methods were completely satisfactory for the compressible ***,results for low-degree primal methods exhibited displacement locking and in general deteriorated in the nearly-incompressible *** results for the mixed methods behaved very well for two of the problems we studied,achieving levels of accuracy very similar to those for the compressible *** third problem,which we consider a“torture test”presented a more complex story for the mixed methods in the nearly-incompressible case.

关键词： Isogeometric analysis isogeometric collocation nearly-incompressible elasticity

不锈钢等离子体性能的激光诱导击穿光谱法研究

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冶金分析 2009年第7期29卷 7-13页

作者： sHAIKH Nek M KALHORO M s BAIG M A Quaid-i-Azam大学物理系原子及分子物理实验室信德大学物理学院

研究了由Nd:YAG激光的一级及二级谐波(sHG)产生的不锈钢等离子体参数的测量方法。根据已知的谱线进行光谱分析,利用Boltzmann法估算出了激发温度,而等离子体的电子密度是从谱线的stark展宽剖面估算出来的。在常压下研究了等离子体的空... 详细信息

研究了由Nd:YAG激光的一级及二级谐波(sHG)产生的不锈钢等离子体参数的测量方法。根据已知的谱线进行光谱分析,利用Boltzmann法估算出了激发温度,而等离子体的电子密度是从谱线的stark展宽剖面估算出来的。在常压下研究了等离子体的空间及时间演化过程,结果发现谱线的积分光强及积分宽度随着时间的延迟而降低。除了逆韧致辐射吸收的估算,同时研究了激光辐照度和波长对等离子体参数的影响。

关键词：激光等离子体跃迁几率 stark展宽法钢 Boltzmann法

用H_α线研究Freon12(CF_2CCl_2)对电感耦合等离子体(ICP)电子密度的影响——ICP技术在危险废弃物处理方面的应用研究

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光谱学与光谱分析 1998年第2期18卷 199-204页

作者：陈登云孙大海应海王小如 Frank.s.C.Lee 厦门大学化学系国家教委材料与生命分析科学开放研究实验室香港浸会大学化学系

电感耦合等离子体（ＩＣＰ）被应用于Ｆｒｅｏｎ１２（ＣＦ２ＣＣｌ２）的焚烧处理。通过观察引入Ｆｒｅ－ｏｎ１２前后ＩＣＰ电子密度分布的变化，可在一定程度上间接了解焚烧的效果。由于Ｈβ线在低观察高度受到较为严重的光谱干扰，... 详细信息

电感耦合等离子体（ＩＣＰ）被应用于Ｆｒｅｏｎ１２（ＣＦ２ＣＣｌ２）的焚烧处理。通过观察引入Ｆｒｅ－ｏｎ１２前后ＩＣＰ电子密度分布的变化，可在一定程度上间接了解焚烧的效果。由于Ｈβ线在低观察高度受到较为严重的光谱干扰，本文采用Ｈα线进行ＩＣＰ电子密度的测定。发射强度与电子密度测定的结果显示了Ｆｒｅｏｎ１２在ＩＣＰ的不同观测高度产生不同的影响，表明ＩＣＰ在导入Ｆｒｅｏｎ１２后出现了明显的“热箍缩”效应，从而有利于该化合物的完全分解。

关键词： ICP 氟利昂 Freon12 处理焚烧处理

Relative peripheral refraction across 4 meridians after orthokeratology and LAsIK surgery

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Eye and Vision 2018年第1期5卷 118-125页

作者： António Queirós Ana Amorim-de-sousa Daniela Lopes-Ferreira César Villa-Collar Ángel Ramón Gutiérrez JoséManuel González-Méijome Clinical&Experimental Optometry Research Lab-CEORLab Center of Physics(Optometry)University of MinhoBragaPortugal Department of Optics and Optometry European University of MadridMadridSpain. Department of Ophthalmology University of MurciaMurciaSpain

Background:To characterize the axial and off-axis refraction across four meridians of the retina in myopic eyes before and after Orthokeratology(OK)and LAsIK ***:sixty right eyes with a spherical equivalent(M)between−0.75 to−5.25 D(cylindersIK(n=26)or OK(n=34)to treat *** and off-axis refraction were measured with an open-field autorefractometer before and after stabilized ***-axis measurements were obtained for the horizontal(35°nasal and temporal retina)and vertical(15°superior and inferior retina)meridians,and for two oblique directions(45–225°and 135–315°)up to 20°of *** refractive profile was addressed as relative peripheral refractive error(RPRE).Results:OK and LAsIK post-treatment results showed an increase of myopic relative refraction at several eccentric *** the four meridians evaluated,the M component of the pre-treatment RPRE values was not statistically different(p>0.05)from the post-treatment RPRE within 30°and 20°of the central visual field after LAsIK and OK,*** results demonstrated that the treatment zone warrants an optimal central field of ***:The present study gives an overview of RPRE after refractive corneal reshaping treatments(OK and LAsIK)across vertical,horizontal and two oblique meridians *** allows a 3D representation of RPRE at the retina and shows that the myopic shift induced by both treatments is more relevant in horizontal directions.

关键词： LAsIK surgery Orthokeratology Peripheral refraction Myopia progression