نتایج جستجو برای: geographical position

تعداد نتایج: 289208  

2001
Joe C. Magee Frances J. Milliken Adam R. Lurie

In this research, we examine the relationship between power and three characteristics of construal—abstraction, valence, and certainty—in individuals’ verbatim reactions to the events of September 11, 2001 and during the immediate aftermath of the terrorist attacks. We conceptualize power as a form of social distance and find that position power (but not expert power) was positively associated ...

2013
Eric Overby

Markets that are well-integrated spatially are important to the stability and success of the economy because they balance supply and demand and create incentives for innovation. Electronic commerce has the potential to improve market integration by providing visibility into supply/demand conditions in different geographic regions and facilitating trade across geographic distance. We study the e...

2016
Zhi Liu Yan Huang

A tremendous amount of information is being shared every day on social media sites such as Facebook, Twitter or Google+. However, only a small portion of users provide their location information, which can be helpful in targeted advertising and many other services. Current methods in location estimation using social relationships consider social friendship as a simple binary relationship. Howev...

2012
Jaco Badenhorst Alta de Waal Febe de Wet

The collection of speech data suitable for speech technology development is a challenge for under-resourced languages. Factors such as cost, availability of mother-tongue speakers and vast geographic distances call for techniques to optimise the data collection process in order to reduce re-collection of data. The use of mobile devices facilitate remote speech data collection. Although mobile (...

Journal: :Telecommunication Systems 2003
Dragos Niculescu B. R. Badrinath

Many ad hoc network protocols and applications assume the knowledge of geographic location of nodes. The absolute position of each networked node is an assumed fact by most sensor networks which can then present the sensed information on a geographical map. Finding position without the aid of GPS in each node of an ad hoc network is important in cases where GPS is either not accessible, or not ...

2016
B. Rammyaa

Mobile Ad hoc Networks are used particularly in critical applications that lack fixed Network infrastructure. The geographical information used by routing protocols makes forwarding decision for reduced routing. But the topology based MANET protocols are vulnerable to number of attacks. As position based routing protocols concentrate on improving the performance, they fail to concentrate on the...

Journal: :Wireless Personal Communications 2017
Juan Antonio García-Fernández Antonio Jurado-Navas Mariano Fernández-Navarro Nikola Sucevic

The present paper details a technique for adjusting in a smart manner the position estimates of any user equipment given by different geolocation/positioning methods in a wireless radiofrequency communication network based on different strategies (observed time difference of arrival , angle of arrivals, propagation delay ). The main advantage of our proposal is to improve in a remarkable way th...

Journal: :iranian journal of earth science 0
g. komlóssy geo-kom geological exploration ltd. vércse u. 23, budapest – hungary h-1124 w. b. morrison william b. morrison and assoc. 3115 bayo vista, alamaeda ca – 94501 usa

in order to meet the significantly increased metal demand of the world market, it has been decided to expand the capacity of the existing alumina refineries and to set up new plants (more than 2 mt/a each). the selection among the bauxite sources is based on previous exploration data, such as: tonnage, grade, mineralogy, etc., the geographical position of the deposit, existing natural and const...

2007
Bonnie Kaplan Peter L. Elkin Paul N. Gorman Ross Koppel Frank Sites Jan L. Talmon

In medical education and clinical care, representations of the patient help health care teams in planning and coordinating patient care, sometimes over geographic distances. This takes forms ranging from telemedicine consultations to using simulations and information and communication technology representations to plan, and at times, perform clinical procedures such as are done in intensive car...

2012
Shawn Kantor Alexander Whalley Marko Zivanovic

This paper uses the establishment of federal agricultural experiment stations to provide new evidence on the effects of university research on long-term regional development. Our analysis of county-level agricultural census data from 1870 to 2000 reveals that station establishment increased local crop revenue per acre for 30-40 years, but localization effects do not persist to the present day. ...

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