منابع مشابه
Aqua Project White Paper
In large data recording and warehousing environments it is often advantageous to provide fast approximate answers to queries whenever possible The goal is to provide an estimated response in orders of magnitude less time than the time to compute an exact answer by avoiding or minimizing the number of accesses to the base data This white paper describes the Approximate QUery Answering AQUA Proje...
متن کاملComparison of Three Aqua Regia Digestion Methods for Twenty Florida Soils
soil and sludge samples based on it, in addition to the total elemental concentrations (Vercoutere et al., 1995; It is important to evaluate different digestion methods to accurately Quevauviller et al., 1993). In many countries (excluding determine elemental concentrations in soils. Three commonly used digestion procedures, hotplate aqua regia, microwave aqua regia, and the USA), this procedur...
متن کاملPatterning of platinum (Pt) thin films by chemical wet etching in Aqua Regia
The chemical and physical properties of platinum (Pt) make it a useful material for microelectromechanical systems and microfluidic applications such as lab-on-a-chip devices. Platinum thin-films are frequently employed in applications where electrodes with high chemical stability, low electrical resistance or a high melting point are needed. Due to its chemical inertness it is however also one...
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ژورنال
عنوان ژورنال: Journal of the American Chemical Society
سال: 1911
ISSN: 0002-7863,1520-5126
DOI: 10.1021/ja02220a009