نتایج جستجو برای: hill and valley regions
تعداد نتایج: 16856138 فیلتر نتایج به سال:
Tethersonde, lidar, aircraft, and surface chemistry measurements from an intensive field campaign (Pacific ’93) in the Lower Fraser Valley (LFV) demonstrate the daytime advection of pollutants into a lake-filled valley adjoining a broad urbanized coastal valley. On three separate days (immediately before, during, and after a pollutant episode), elevated concentrations of ozone (O3) in the narro...
We report a combined experimental and theoretical study of the growth of sub-monolayer amounts of silicon (Si) on molybdenum disulfide (MoS2). At room temperature and low deposition rates we have found compelling evidence that the deposited Si atoms intercalate between the MoS2 layers. Our evidence relies on several experimental observations: (1) Upon the deposition of Si on pristine MoS2 the m...
A boundary spanning regional innovation model of permeability among universityindustry-government is abstracted from Boston, Silicon Valley and Research Triangle and used to assess Newcastle Science City. Early history may provide a better guide for aspiring regions than abstracting elements from the contemporary Silicon Valley ecosystem with its multiple interactive technology and business par...
We map polygonally patterned ground formed in sublimation tills that overlie debris-covered glaciers in Mullins Valley and central Beacon Valley, in southern Victoria Land, Antarctica, and distinguish five morphological zones. Where the Mullins Valley debris-covered glacier debouches into Beacon Valley, polygonal patterning transitions from radial (orthogonal) intersections to non-oriented (hex...
Abstract Geomorphological investigations in Rome’s river valley are revealing the dynamism of prehistoric landscape. It is becoming increasingly apparent that paleogeographic conditions defined Rome historical era product changes since Bronze Age, which may be result local fault activity addition to fluvial dynamism. Through a dedicated borehole chronostratigraphic study, integrated by 14 C and...
introduction: spatial variation of soil properties is significantly influenced by numerous environmental factors such as landscape features, including position, topography, slope gradient and aspect, parent material, climate and vegetation. soil properties vary spatially in south- and north-facing hill slopes. this factor (different slope aspects) can affect the distribution of soil organic mat...
Limestone hills are now gaining global conservation attention as hotspots for short-range endemic species. Levels of land snail endemism can be high at limestone hills, especially at hill clusters that are geographically isolated. In the State of Perak, Peninsular Malaysia, limestone hills have been opportunistically surveyed for land snails in the past, but the majority have yet to be surveyed...
Synergies among technological opportunities, market perspectives, and geographical endowments can be considered as indicators of systemness. Using information theory, we propose a measure of synergy among size-classes, zip-codes, and NACE-codes for 8.5 million American firms. The synergy at the national level is decomposed at the level of states and CoreBased Statistical Areas (CBSA) as regions...
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