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451篇 您的检索式:作者名="Carstensen"
    题名 作者 年代 出处 被引量
1HANGING NODES IN THE UNIFYING THEORY OF A POSTERIORI FINITE ELEMENT ERROR CONTROL显示文摘A 统一了 posteriori 错误分析被开发了在[18,21 23 ] 分析有限元素错误在一个通用房顶下面的 posteriori。这份报纸与挂为本地人被要求的节点贡献有限元素网孔精制网孔。进三角形和平行四边形和他们的联合的不规则的三角测量与遵守中间的 nonconforming 被认为有限元素方法的二维的 1-- 依照或由报纸命名, Q [1 ] , Crouzeix-Raviart,为泊松的火腿 Rannacher-Turek,和其它,司烧并且海军打敢椠 ? 桴 ? 慦業祬眠祡吗?C. Carstensen Jun Hu 2009Journal of Computational Mathematics2009,27,2:4
2Influence of a non-rotating shoulder on heat generation,microstructure and mechanical properties of dissimilar AA2024/AA7050 FSW joints显示文摘Friction stir welding(FSW) and stationary shoulder friction stir welding(SSFSW) were carried out for the butt joining of dissimilar AA2024-T3 and AA7050-T7651 aluminium alloys with thicknesses of 2 mm. A comparison between the two processes was performed by varying the welding speed while keeping the rotational speed constant. Through the analysis of the force and torque produced during welding and a simple analytical model, it was possible to show that in SSFSW there is more effective coupling with the tool and the heat produced is more efficiently distributed. This process decreases both the welding area and the diffusion at the interface of the two alloys compared with FSW. The minimum microhardness occurred at the advancing side(AS) at the interface between the thermo-mechanically affected zone(TMAZ) and the stir zone(SZ) in both processes, although the decrease was more gradual in SSFSW. This interface is also where all specimens failed for both welding technologies. An increase in tensile strength was measured in SSFSW compared with standard FSW. Furthermore, it was possible to establish the mechanical performance of the material in the fracture zone using digital image correlation.Alessandro Barbini Jan Carstensen Jorge F.dos Santos 2018Journal of Materials Science & Technology2018,34,1:4
3Mercury concentrations in blood and feathers of nestling Bald Eagles in coastal and inland Virginia显示文摘Background:Mercury(Hg) and methylmercury are widely considered significant issues for wildlife,and in particular,piscivorous birds due to their widespread availability and neurotoxic properties.Whereas a substantial number of studies of Hg contamination of Bald Eagles(Haliaeetus leucocephalus) have been conducted throughout the east coast of the United States,little has been done that directly addresses Hg contamination in Bald Eagles in Virginia,particularly the inland population.Methods:We collected blood and feather samples from nestling Bald Eagles in the coastal plain,piedmont,and western regions of Virginia in an effort to determine which areas of the state were more likely to contain populations showing evidence of Hg toxicity.We analyzed the samples for total Hg using a Milestone DMA-80.Results:Samples collected from individuals located in the coastal region exhibited low concentrations of Hg compared to those further inland located on freshwater rivers and reservoirs.Samples collected from the inland population exhibited levels in some areas that are approaching what may be considered to be sub-lethal to avian health(blood:mean 0.324 mg/kg,SE = 0.13,range = 0.06-0.97 mg/kg;feather:mean = 8.433 mg/kg,SE = 0.3,range = 3.811-21.14 mg/kg).Conclusions:Even after accounting for known point-sources of Hg,the inland eagle population in Virginia is susceptible to concentrations of Hg that are significantly higher than their coastal counterparts.Moreover,several locations besides those currently known to be impacted by point-sources are exhibiting concentrations that are approaching a sub-lethal level.David E.Kramar Bill Carstensen Steve Prisley Jim Campbell 2019Avian Research2019,10,1:2
4Tumours classified as ''malignant histiocytosis'' in children are T-cell neoplasms显示文摘Ornvold K Carstensen H Junge J 1992APMIS1992,100,6:2
5Attenuation of left ventricular dilation after acute myocardial infarction by early initiation of enalapril therapy 显示文摘Bonarjee VV Carstensen S Caidahl K 2003Am J Cardiol2003,72,14:1
6Attenuation of left ventricular dilation after acute myocardial infarction by early initiation of enalapril therapy显示文摘Bonarjee VV Carstensen S Caidahl K 1993Am J Cardiol1993,72,14:1
7Exercise holds immediate benefits for affect and cognition in younger and older adults显示文摘HOGAN C L MATA J CARSTENSEN L L 2013Psycholo- gy and aging2013,28,2:1
8Formation and application of porous silicon显示文摘 Christophersen M Carstensen J 2002Materials Science and Engineering2002,39,:1
9Determination of acoustic properties of blood and its corn ponents 显示文摘CARSTENSEN E L LI Kam SCHWAN H P 1953J Acoust Soe Am1953,25,2:1
10Jet Milling-a new technique for microperticle preparation显示文摘Nykamp G Carstensen U Muller B W 2002Int J Pharm2002,242,12:1
11The safetyand efficacy of menotreat,a new balloon device for thermal endometrial ablation显示文摘Ulmsten U Carstensen H Falconer C 2001Acta Obstet Gynecol Scand2001,80,1:1
12Prediction of hydraulic load for urban storm control of a municipal WWT plant显示文摘Carstensen J Nielsen M K Strandbak H 1998 1998Water Sci Technol1998,37,12:1
13Elastography in the management of liver disease显示文摘Carstensen E L Parker K J Lerner R M 2008Ultrasound Med Biol2008,34,10:1
14Using air in sub-surface drip irrigation (SDI) to increase yields in bell peppers 显示文摘Goorahoo D Carstensen G Zoldoske 2002International Water & Irrigation2002,22,2:1
15Integration of wastewater treatment plant design and operation - a systematic approach using cost functions 显示文摘Vanrolleghem P A Jeppsson U Carstensen J 1996Water Sci Technol1996,34,34:1
16Integration of wastewater treatment plant design and operation-a systematic approach using cost functions 显示文摘Vanrolleghem P A Jeppsson U Carstensen J 1996Water Science and Technology1996,34,3:1
17DNA Index and S-phase in primary brain tumors:A comparison between fresh and deparaffinized specimens studied by flow cytometry显示文摘Vavrucn L Enestrom S Carstensen J 1994J Neurosurg1994,80,:1
18Pore Formation Mechanisms for the Si - HF System 显示文摘 Carstensen J Fo11 H Mat 2000Sci Eng2000,23,:1
19Hydrocarbon Process 显示文摘Carstensen J H 199069:571990,69,:1
20De Casteljau′s algorithm is an extrapolation method显示文摘 Mühlboch G Schmidt G 1995Computer Aided Geometric Design1995,12,4:1
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