منابع مشابه
No-Till Production of Irish Potato on Raised Beds
INTRODUCTION In an extensive review of organic mulches applied on conventionally tilled (plow-disk) fields, Dutton (1957) concluded: 1) that organic mulches such ashay and straw often increasedboth yield and quality of Irish potato (Solanum tuberosum L.) and 2 ) that improved soil physical properties under the mulch, particularly lower soil temperatures and conservation of soil moisture, were r...
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Our first tendency is to look outside Europe when searching for ancient rhetorics that do not follow the Greco-Roman tradition. After all, much of European culture was strongly influenced by Roman culture, especially following the conquests of Julius Caesar in 58-51 BCE and subsequent conquests that brought most of Europe under Roman control. Rome’s civic practices, including variations of Grec...
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Many applications require the ability to manipulate sequences of data. We motivate the importance of sequence query processing, and present a framework for the optimization of sequence queries based on several novel techniques. These include query transformations, optimizations that utilize meta{data, and caching of intermediate results. We present a bottom-up algorithm that generates an eecien...
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Their long range in matter renders high-energy atmospheric muons a unique probe for geophysical explorations, permitting the cartography of density distributions which can reveal spatial and possibly also temporal variations in extended geological structures. A Collaboration between volcanologists and (astro-)particle physicists, Tomuvol, was formed in 2009 to study tomographic muon imaging of ...
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We consider local and global combinatorial constraints on embeddings of a simple closed curve in a rectangular array of unit squares in which the curve lies entirely within the rectangular array and passes through each unit square once. Geographical terminology is convenient to describe the embeddings. We study shortest segments of the embedded curve with no clockwise quarter turns (bays) and a...
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ژورنال
عنوان ژورنال: Geological Magazine
سال: 1874
ISSN: 0016-7568,1469-5081
DOI: 10.1017/s0016756800168414