نتایج جستجو برای: hill and valley regions

تعداد نتایج: 16856138  

1998
I. G. MCKENDRY D. G. STEYN R. M. BANTA K. ANLAUF

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...

2017
Rik van Bremen Qirong Yao Soumya Banerjee Deniz Cakir Nuri Oncel Harold J W Zandvliet

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...

2011
Henry Etzkowitz

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...

2006
JOSEPH S. LEVY

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...

Journal: :International Journal of Earth Sciences 2021

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...

Journal: :آب و خاک 0
مسلم زرینی بهادر کمال نبی اللهی مهدی نوروزی

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...

2017
Junn Kitt Foon Gopalasamy Reuben Clements Thor-Seng Liew

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...

Journal: :CoRR 2017
Loet Leydesdorff Caroline S. Wagner Igone Porto-Gomez Jordan A. Comins Fred Phillips

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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