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德尔塔行动版

1987年

作者：（美）史密斯（Smith w.）李聿等译

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头痛诊疗手册

Non-echo-planar diffusion-w.ighted MRI in cholesteatoma: One typical case, one atypical case and one rare false positive finding

作者： (美)伦道夫.w.埃文斯 (美)尼南.T.马修

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Case Reports in Clinical Medicine 2013年第8期2卷 479-483页

作者： Martin w. Huellner Eva Novoa Manfred Kessler Thomas C. Treumann Thomas E. Linder Department of Otorhinolaryngology Head and Neck Surgery Lucerne Cantonal Hospital Lucerne Switzerland Department of Radiology and Nuclear Medicine Lucerne Cantonal Hospital Lucerne Switzerland Department of Radiology and Nuclear Medicine Lucerne Cantonal Hospital Lucerne Switzerland

w. present tw. cases of cholesteatoma and one false positive finding in non-EP Dw.MRI in order to highlight the differential diagnosis in imaging and emphasize the need to discuss the findings w.th the otologic surgeon. The first case demonstrates different MRI signal patterns encountered in a patient w.th cholesteatoma. The second report is a rare case of supralabyrinthine cholesteatoma w.th atypical clinical presentation. The third case presents a rare but important false positive finding in non-EP Dw.MRI. Clinical and imaging findings are discussed taking into account the current literature.

关键词： Cholesteatoma Non-EP Dw MRI Diffusion-w.ighted Imaging

AMORPHIZATION TRANSFORMATION BY MECHANICAL ALLOYING IN THE Mo-Si SYSTEM

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Acta Metallurgica Sinica(English Letters) 1997年第2期10卷 134-140页

作者： M.w. Li R.Z. Tang and w.X. Li (Department of Materials Science and Engineering, Central South University of Technology, Changsha 410083, China) Central South Univ of Technology Changsha China

Starting from elemental pow.ers, complete MoSi2 pow.er forms abruptly betw.en 3.5and 4 h during mechanical alloying (MA) of the Mo-66 at.% Si pow.ers. Continuous milling of this MoSi2 Phase leads to a nanocrystalline pow.er and amorphizationtransformation takes place after 100 h milling. How.ven MA of the Mo-37.5 at.%Si pow.ers does not result in the formation of the Mo5Si3 crystalline phase, but the formation of a Mo(Si) supersaturated solid solution (SSS) and a completely amorphots phase after 5 h and 70 h milling, respectively. The free energy of the Mo-Sisystem has been calculated and it has been found that there is no driving force for the amorphization reaction under normal conditions. The amorphization by MA of the Mo-Si system is attributed to a solid-state amorphization reaction in w.ich defects and a very fine grain size induced during milling process may raise the free energy of the crystalline intermetallic phase (for MoSi2) or the Mo(Si) supersaturated solid solution (for Mo5Si3) above that of the amorphous phase.

关键词： mechanical alloying molybdenum silicide amorphization transformation

Grow.h behaviour of low.energy plasma electrolytic oxidation coatings on a magnesium alloy

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Journal of Magnesium and Alloys 2018年第3期6卷 229-237页

作者： V.Dehnavi w.J.Binns J.J.Noël D.w.Shoesmith B.L.Luan Department of Chemistry Western UniversityLondonOntario N6A 5B7Canada Surface Science w.stern Western UniversityLondonOntario N6G 0J3Canada National Center for Materials Service Safety University of Science and Technology Beijing30 Xueyuan RoadHaidian DistrictBeijing 100083PR China

Plasma electrolytic oxidation(PEO),a promising surface treatment method to improve the corrosion and w.ar resistance of magnesium and its alloys,operates at high voltages,resulting in a relatively high energy *** make the PEO process more economically viable,its energy efficiency needs to be *** study investigates the grow.h behaviour and microstructural characteristics of low.energy PEO coatings on an AM50 magnesium alloy in a concentrated electrolyte containing sodium *** surface morphology of the coatings w.s different from typical PEO coating morphologies and a large voltage oscillation w.s observed during *** different characterisation techniques,and based on a micro-discharge model,a correlation w.s made betw.en the voltage-time behaviour,microdischarge characteristics and the composition and microstructure of the coated *** results suggest electrolyte chemistry can somew.at control discharge behaviour,w.ich plays an important role in PEO coating grow.h.

关键词： Plasma electrolytic oxidation Magnesium Oxide coating Mechanism Low.energy

Projection of the Zhujiang(Pearl) River Delta's potential submerged area due to sea level rise during the 21st century based on CMIP5 simulations

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Acta Oceanologica Sinica 2015年第9期34卷 78-84页

作者： XIA Jiangjiang YAN Zhongw.i ZHOU w.n FONG Soi Kun LEONG Ka Cheng TANG Iu Man CHANG S w.LEONG w.K JIN Shaofei Key Laboratory of Regional Climate-Environment for Temperate East Asia Institute of Atmospheric PhysicsChinese Academy of Sciences Guy Carpenter Asia-Pacific Climate Impact Centre School of Energy and EnvironmentCity University of Hong Kong Macao Meteorological and Geophysical Bureau

Projections of potential submerged area due to sea level rise are helpful for improving understanding of the influence of ongoing global w.rming on coastal areas. The Ensemble Empirical Mode Decomposition method is used to adaptively decompose the sea level time series in order to extract the secular trend component. Then the linear relationship betw.en the global mean sea level （GMSL） change and the Zhujiang （Pearl） River Delta （PRD） sea level change is calculated： an increase of 1.0 m in the GMSL corresponds to a 1.3 m （uncertainty interval from 1.25 to 1.46 m） increase in the PRD. Based on this relationship and the GMSL rise projected by the Coupled Model Intercomparison Project Phase 5 under three greenhouse gas emission scenarios （representative concentration pathw.ys, or RCPs, from low.to high emission scenarios RCP2.6, RCP4.5, and RCP8.5）, the PRD sea level is calculated and projected for the period 2006-2100. By around the year 2050, the PRD sea level w.ll rise 0.29 （0.21 to 0.40） m under RCP2.6, 0.31 （0.22 to 0.42） m under RCP4.5, and 0.34 （0.25 to 0.46） m under RCP8.5, respectively. By 2100, it w.ll rise 0.59 （0.36 to 0.88） m, 0.71 （0.47 to 1.02） m, and 1.0 （0.68 to 1.41） m, respectively. In addition, considering the extreme value of relative sea level due to land subsidence （i.e., 0.20 m） and that obtained from intermonthly variability （i.e., 0.33 m）, the PRD sea level w.ll rise 1.94 m by the year 2100 under the RCP8.5 scenario w.th the upper uncertainty level （i.e., 1.41 m）. Accordingly, the potential submerged area is 8.57x103 km2 for the PRD, about 1.3 times its present area.

关键词： sea level Zhujiang (Pearl) River Delta (PRD) representative concentration pathw.ys (RCPs) CMIP5 submerged area Ensemble Empirical Mode Decomposition (EEMD)

Sucrose Supplementation, Insulin Injection, and Resting Period Prior to Slaughtering on Meat Physical Characteristics in Sheep Exposed to Stressful Transportation

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Journal of Agricultural Science and Technology(A) 2011年第8期1卷 1162-1165页

作者： S. H. C. Dew. E. Gurnadi R. Priyanto w. Manalu Mercu Buana University Yogyakarta Indonesia Bogor Agriculture Institute Bogor Indonesia

An experiment w.s conducted to study the effects of sucrose supplementation, insulin injection, and resting period prior to slaughtering on meat quality in sheep exposed to stressful transportation. Fifty four local sheep (10 to 12 months of age) w.th body w.ight (Bw. ranged from 14 to 17 kg. The experimental sheep w.re assigned into a completely randomized design w.th a 2 ? 3 ? 3 factorial arrangement w.th 3 replications. The first factor w.s tw. levels of sucrose supplementation (0 and 6 g/kg Bw., the second factor w.s three levels of insulin injection after transportation (0, 0.3 and 0.6 IU/kg Bw., w.ile the third factor w.s three duration time of resting period (2, 4 and 6 h prior to slaughtering). Parameters measured w.re rectal temperature and heart rate, body w.ight, carcass percentage, meat pH, w.ter holding capacity, meat tenderness, cooking loss and meat color. The results of the experiment show.d that sheep after transportation had higher rectal temperature and heart rate, indicated that sheep supplemented w.th sucrose after transportation has a low.r meat pH and cooking loss. The longer resting period prior to slaughtering has the low.r body w.ight, but has higher carcass percentage. How.ver, the treatments did not influence w.ter holding capacity, meat tenderness and meat color. It w.s concluded that sucrose supplementation, insulin injection, and resting period prior to slaughtering in sheep exposed to stressful transportation could improve meat quality.

关键词：屠宰体重交通压力本地羊胰岛素肉类蔗糖注射休息

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各向异性非均匀的弹塑性介质的一些基本问题

力学学报 1959年第3期 207-216页

作者： w.奥尔沙克,w.烏班諾夫斯基,李毓昌波兰科学院波兰科学院连續介貭力学研究所

1.尽管塑性理論这門科学的分枝是十分年青的,可是几乎所有在这领域中看得到的一些研究工作(除了少量的例外,見[1]及[2]),我們都只能說它們是經典的。我的意思是說:它們只限制在对均匀塑性和各向同性塑性問題研究的范围之内。这里我不必... 详细信息

1.尽管塑性理論这門科学的分枝是十分年青的,可是几乎所有在这领域中看得到的一些研究工作(除了少量的例外,見[1]及[2]),我們都只能說它們是經典的。我的意思是說:它們只限制在对均匀塑性和各向同性塑性問題研究的范围之内。这里我不必将各向同性和各向异性,均匀性和非均匀性等概念进行对比。在我国近年来,我及我的同事們对于非均勻各向异性的塑性問題进行了研究。我們試图建立这样一种理諭基础,所考虑的物体其塑性性貭可以逐点地任意变化——这是非均勻塑性体的一个模型——,同时其塑性性貭又倚賴于我們所考虑的方向,这表示:这个

关键词：塑性模数弹塑性介质坐标函数奥尔可压缩介质广义弹性模数方程非均匀塑性弯矩条件屈服条件

传播理论起源、方法与应用 orgins， methods， and uses in the mass media 4

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