نتایج جستجو برای: دوربین ماهواره leo

تعداد نتایج: 12683  

1999
Maria Elena Villapol Jonathan Billington

The Internet Engineering Task Force is working on extending the traditional TCP/IP model for supporting multimedia and real-time applications on the Internet. Thus, new protocols have been developed such as the Resource Reservation Protocol. With the rapid growth of mobile networks, the IETF is also working on creating and extending the existing protocols to support mobile users. This has led t...

2007
James Young Alan Wilhite

The NASA Exploration Systems Architecture Study (ESAS) produced a transportation architecture for returning humans to the moon affordably and safely while using commercial services for tasks such as cargo delivery to low earth orbit (LEO). Another potential utilization of commercial services is the delivery of cryogenic propellants to LEO for use in lunar exploration activities. With in-space p...

2004
Reza Septiawan Stephen Sugden

Satellite communication promises potential methods for providing global communication. In particular, by the development of a Low Earth Orbital (LEO) satellite constellation, both global coverage and broadband communication will be accessible. Problems arise in situations where various tra¢ c types in broadband communication require di¤erent levels of quality of service (QoS). Tra¢ c control is...

Journal: :Cancer research 1987
J A Werkmeister T Triglia I R Mackay J P Dowling G A Varigos G Morstyn G F Burns

A monoclonal antibody, Leo Mel 3, raised against a melanoma cell line (LiBr), binds to a carbohydrate determinant of cell surface gangliosides, the simplest of which is GD3. This monoclonal antibody was screened for by its capacity to block the recognition and lysis of the melanoma cells by cytotoxic T-lymphocytes with anomalous killer cell function, illustrating a novel approach for identifyin...

Journal: :The Annals of Applied Statistics 2010

2008
Matthew G. Coleman Eva K. Grebel Andreas Koch

Using SDSS I data, we have analysed the stellar distribution of the Leo II dwarf spheroidal galaxy (distance of 233 kpc) to search for evidence of tidal deformation. The existing SDSS photometric catalogue contains gaps in regions of high stellar crowding, hence we filled the area at the centre of Leo II using the DAOPHOT algorithm applied to the SDSS images. The combined DAOPHOTSDSS dataset co...

2005
Stylianos Karapantazis Petia Todorova

Low earth orbit (LEO) satellite systems gained considerable interest in the past decade and were expected to be instrumental in future telecommunications systems. Nevertheless, the first two LEO satellite networks that are currently in operation have not come to fruition on account of the limited spectrum of services that they provide. In this context, future LEO satellite networks will be gear...

2007
John C. S. Lui Peter T. S. Tam

Routing in Low-earth-orbit (LEO) satellite system involves the choice of inter-satellite links (ISLs) that connects two home satellites of the mobile terminals. We use a mesh model to formulate the LEO system and proposed 4 mesh-based algorithms. The objective is to minimize the new call blocking probability and the forced termination probability. Also, due to the dynamic topology of the LEO sy...

Journal: :The Prostate 2011
Nanda K Thudi Sherry T Shu Chelsea K Martin Lisa G Lanigan Murali V P Nadella Adrie Van Bokhoven Jillian L Werbeck Jessica K Simmons Sridhar Murahari William C Kisseberth Matthew Breen Christina Williams Ching-Shih Chen Laurie K McCauley Evan T Keller Thomas J Rosol

BACKGROUND Prostate cancer in men has a high mortality and morbidity due to metastatic disease. The pathobiology of prostate cancer metastasis is not well understood and cell lines and animal models that recapitulate the complex nature of the disease are needed. Therefore, the goal of the study was to establish and characterize a new prostate cancer line derived from a dog with spontaneous pros...

Journal: :International Review of Social History 1972

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