نتایج جستجو برای: p al
تعداد نتایج: 1655458 فیلتر نتایج به سال:
We presented an experimental comparison of the core-composition difference on suppression photodarkening and transverse mode instability effects. Two fibers, entailing Yb/Al/Ce Yb/Al/P co-doped were fabricated by MCVD process combined with solution doping technique. The parameters two fibers almost same. PD-induced loss at equilibrium was 3.94 dB/m 702 nm in fiber, while it 0.99 fiber. To obtai...
Understanding the distribution of different P forms in soil aggregate fractions is important in evaluating the risk of P run-off and leaching in the agricultural soils. The objective of the present research was to determine the effect of aggregate size on soil phosphorus availability and fractionation in 10 calcareous soils. Micro aggregate (< 0.25 mm), macro aggregate (> 0.25 mm) and whole soi...
Scyphomedusae undergo a predictable ontogenetic transition from a conserved, universal larval form to a diverse array of adult morphologies. This transition entails a change in bell morphology from a highly discontinuous ephyral form, with deep clefts separating eight discrete lappets, to a continuous solid umbrella-like adult form. We used a combination of kinematic, modeling, and flow visuali...
470 Extracardiac endothelium patterns embryonic coronary arterio-venous connections JM. Perez-Pomares1; E. Cano2; R. Carmona1; A. Ruiz-Villalba3; A. Rojas4; Y-Y. Chau5; KD. Wagner6; N. Wagner6; ND. Hastie5; R. Munoz-Chapuli1 University of Málaga, Málaga, Spain; Max Delbruck Center for Molecular Medicine, Berlin, Germany; University of Navarra, Pamplona, Spain; Centro Andaluz de Biologı́a Molecul...
In this paper, the convergence of Zakharov-Kuznetsov (ZK) equation by homotopy analysis method (HAM) is investigated. A theorem is proved to guarantee the convergence of HAM and to find the series solution of this equation via a reliable algorithm. c ⃝ 2014 IAUCTB. All rights reserved.
Et Tu, Torsten? This critique of my Economic Policy paper generates many emotions. It is certainly an honor for my research to be taken seriously by such an eminent scholar as my friend Torsten Persson. And while any publicity is good, a negative citation dominates a positive one. There is irony; I came up with the original idea in a hallway conversation with Harry Flam a few feet from Persson...
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