نتایج جستجو برای: ground coverage

تعداد نتایج: 226181  

2011
W Hofmann

Ground-based gamma-ray astronomy has had a major breakthrough with the impressive results obtained using systems of imaging atmospheric Cherenkov telescopes. Ground-based gamma-ray astronomy has a huge potential in astrophysics, particle physics and cosmology. CTA is an international initiative to build the next generation instrument, with a factor of 5–10 improvement in sensitivity in the 100 ...

2003
Christian Früh Avideh Zakhor

In this paper, we present a fast approach to automated generation of textured 3D city models with both high details at ground level, and complete coverage for bird’s-eye view. A close-range facade model is acquired at the ground level by driving a vehicle equipped with laser scanners and a digital camera under normal traffic conditions on public roads; a far-range Digital Surface Map (DSM), con...

2002
Alex T. Nguyen M. Hadjitheodosiou J. S. Baras Michael Hadjitheodosiou John. S. Baras

In order to support the communications needs of the International Space Station (ISS), alternative communications architectures to provide broadband support need to be considered. We address three communications options and evaluate an architecture for the direct to ground option, which could serve as an intermediary solution to satisfy near term communications needs of commercial experiments a...

2002
Alex T. Nguyen Xiangrong Zhou Michael H. Hadjitheodosiou John S. Baras

We outline the first steps of an effort to start defining a communications architecture for supporting broadband data communications from the International Space Station. We address three communications options and focus on a direct-to-ground architecture, which could serve as an intermediary solution to satisfy near term communications needs of commercial experiments and payloads on the ISS an...

Journal: :مدیریت اطلاعات سلامت 0

introduction: neglecting to define important criteria in developing a basic health insurance package and to notice their real roles will result in defining a package which is politically unacceptable, non-economical, technically inefficient or mixed of them. therefore development of basic health insurance package should be according to appropriate composition of influential criteria. this study...

Journal: :Brazilian journal of biology = Revista brasleira de biologia 2009
R A F Lima S Gandolfi

This study aimed to characterize the structure of the herb stratum in relation to light availability in the Submontane Atlantic Rain Forest at the Carlos Botelho State Park, SP, Brazil. Fortyone 10 x10 m plots were established under the closed canopy (18 plots), small and medium canopy gaps (11) and large canopy gaps dominated by Guadua tagoara (Ness) Kunth (12). Inside each plot, the line inte...

Journal: :journal of rangeland science 2010
m. b. patel r. a. s. patel

main perennial rivers of gujarat, tapi, narmada, mahi and sabarmatiare meeting arabian sea in gulf of khambhat. the out flow of mahi river intothe sea is decreased due to construction of dams like bajaj sagar, kadana, panamand wanakbori weir. so, tidal effect of sea and sea water intrusion is beingincreased on landward side. moreover, due to erratic nature of rainfall andimproper management of ...

2008
John Dolloff Michelle Iiyama

This paper presents a new and efficient method for the generation of a ground control network that is both accurate and consistent (high relative accuracy) across its entire area of coverage, which can range from a few kilometers squared to the size of countries and conceivably continents. Due to its unique generation process and data content (the 3D locations of the ground control points, thei...

2011
Wei Li Hai-Zhou Huang Zhi-Nan Zhang Gao-Lin Wu

Livestock grazing is one of the most important factors influencing the above-ground community composition and structure in a natural grassland ecosystem. Different grazing intensities also have the potential to alter soil C and N storage substantially in grasslands. We conducted a field community study and soil analyses to determine the effects of different grazing intensities on the above-grou...

1998
S. VOGELGSANG A. K. WATSON A. DITOMMASO K. HURLE

The e€ects of the fungal pathogen Phomopsis convolvulus Ormeno on seedling and established plant performance of Convolvulus arvensis L. were compared under both controlled and ®eld conditions. Under a controlled environment, a granular barley formulation of the fungal inoculum that had been applied on to the soil surface of pots containing pre-germinated C. arvensis seeds resulted in above-grou...

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