نتایج جستجو برای: trace

تعداد نتایج: 67071  

Journal: :Contributions to Mineralogy and Petrology 2021

We investigate the coupling between H, minor, trace, and ultra-trace element incorporations in 17 olivines from ten different locations covering various petrological origins: magmatic, hydrothermal, mantle-derived context. Concentrations major are determined by micro X-ray fluorescence. Minor, elements laser ablation inductively coupled plasma mass spectrometry. Hydrogen concentrations quantifi...

Journal: :Proceedings of the American Mathematical Society 2015

2014
Flavio Chierichetti

Prediction tasks in machine learning usually require deducing a latent variable, or structure, from observed traces of activity — sometimes, these tasks can be carried out with a significant precision and statistical significance, while sometimes getting any useful prediction requires an unrealistically large number of traces. In this talk, we will study the trace complexity of (that is, the nu...

2009
Andreas Knüpfer

5 1 Performance Analysis for HPC Applications 7 1.1 Computation and Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 1.2 Performance Analysis and Optimization . . . . . . . . . . . . . . . . . . . . . . . . . . 8 1.3 Performance Analysis Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 1.4 Contribution of this Thesis . . . . . . . . . . . . . . ...

2016
Esfandiar Haghverdi

We introduce the notion of relative trace which is motivated by an observation about the category of vector spaces and linear transformations and builds upon the categorical trace of Joyal, Street, and Verity. Furthermore, we define a new categorical trace based on a trace formula first introduced by J. Bernstein.

2010

Trace elements occur in the human and animal body in milligrams per kilograms amount or less as against major elements which occur in gram per kg.essential elements are elements required for lifewhose deficient intake results in impairment of vital functions and only intake of physiologic amounts of the element can alleviate or prevent such a disturbance in function. Certain T.Es exists in the ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت معلم تهران - دانشکده علوم 1370

determination of uranium in natural water and complex solutions using ion exchange chromatography: a combined procedure using ion exchange chromatography and uv-vis spectrophotometry techniques has been developed to measure uranum in natural water and complex solutions. after conditicing , one hundred milli liters of sample solutions have been passed through an ion exchange column,pachked with ...

2003
Hans Vandierendonck Hans Logie Koen De Bosschere

Trace caches deliver a high number of instructions per cycle to wide-issue superscalar processors. To overcome complex control flow, multiple branch predictors have to predict up to 3 conditional branches per cycle. These multiple branch predictors sometimes predict completely wrong paths of execution, degrading the average fetch bandwidth. This paper shows that such mispredictions can be detec...

2015
Sara Tomlinson Darrell D. Mousseau Glen B. Baker Ashley D. Radomski

Trace amines, which include b-phenylethylamine (PEA), tryptamine (T), phenylethanolamine (PEOH), tyramines (TAs), octopamines (OAs), and synephrine (SYN) [some authors include N, N-dimethyltryptamine (DMT) in this list], are amines related structurally to, but present in the brain at much lower concentrations than, the classical neurotransmitter amines – dopamine (DA), noradrenaline (NA), and 5...

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