نتایج جستجو برای: mobile sources

تعداد نتایج: 456508  

Journal: :Anais da Academia Brasileira de Ciencias 2012
Elba C Teixeira Camila D P Mattiuzi Sabrina Feltes Flavio Wiegand Eduardo R R Santana

The purpose of the present study was to estimate emissions of some pollutants (CO, NO(X), HC, SO(X), and PM) in diesel fleet due to the addition of biodiesel in different blends, as well as to assess atmospheric pollutant concentrations in the metropolitan area of Porto Alegre (MAPA). The methodology was based on inventories from mobile sources based on US EPA's technical report. Regarding air ...

2012
Wen Fei Zhang Li Bin Tang Siu Fung Yu Shu Ping Lau

Spotlight summary: Light sources have an indispensable role in everyday life. From the first lamp using animal fat around 70,000 BC, to modern light sources, these have been widely used and developed for diverse applications going much beyond night lighting. For example, light-emitting diodes (LEDs) have been extensively utilized in illumination, e.g. as backlight for various mobile units (such...

2005
David Puig Vítor Sequeira Emilio Ruiz João G.M. Gonçalves Martin Mellado

To construct realistic 3D models of large environments that match the physical world as accurately as possible there is the need to combine several kinds of data sources, such as: ground and aerial laser range scans, tracking data, photos, GPS data, satellite images. In this paper we concentrate on the ground level data acquisition. We present two integrated solutions for automated 3D acquisiti...

2015
Nathalie E. Williams Timothy A. Thomas Matthew Dunbar Nathan Eagle Adrian Dobra

In the past decade, large scale mobile phone data have become available for the study of human movement patterns. These data hold an immense promise for understanding human behavior on a vast scale, and with a precision and accuracy never before possible with censuses, surveys or other existing data collection techniques. There is already a significant body of literature that has made key inroa...

2016
Elizabeth C. Lee Jason M. Asher Sandra Goldlust John D. Kraemer Andrew B. Lawson Shweta Bansal

Spatial big data have the velocity, volume, and variety of big data sources and contain additional geographic information. Digital data sources, such as medical claims, mobile phone call data records, and geographically tagged tweets, have entered infectious diseases epidemiology as novel sources of data to complement traditional infectious disease surveillance. In this work, we provide example...

2002
Jody J. Daniels Susan McGrath

The Listen Communicate Show (LCS) Marine system enables Marines to issue and monitor verbal logistics domain requests using a computer and a microphone headset or cellular phone. The LCS Marine server accepts the verbal supply request and, if necessary, automatically enters into a dialogue with the user to elicit sufficient information to place a valid logistics domain request. Once a valid req...

2000
Jesse M. Steinberg Joseph Pasquale

Mobile Agents are a newly emerging network application technology in which programs can travel throughout a network to run on machines other than the originating host. Extensive research on Mobile Agents has been ongoing for many years and many Mobile Agent systems have been developed. However, there has not yet been any widespread acceptance of Mobile Agents as a viable technology by the Inter...

2009
Adrian Holzer Jan Ondrus

The mobile telecommunication market has recently been shaken by the arrival of new actors, such as Apple and Google. As a consequence, the relatively well-established mobile network operators (MNO) have to rethink their position in the market if they want to participate in the growth of mobile telecommunication revenues. Mobile applications and services are being seen as great opportunity of ne...

2015
Peter Widhalm Yingxiang Yang Michael Ulm Shounak Athavale Marta C. González

Massive and passive data such as cell phone traces provide samples of the whereabouts and movements of individuals. These are a potential source of information for models of daily activities in a city. The main challenge is that phone traces have low spatial precision and are sparsely sampled in time, which requires a precise set of techniques for mining hidden valuable information they contain...

2011
Nirmalya Roy Archan Misra Christine Julien Sajal K. Das

Proliferation of mobile applications in unpredictable and changing environments requires applications to sense and act on changing operational contexts. In such environments, understanding the context of an entity is essential for adaptability of the application behavior to changing situations. In our view, context is a high-level representation of a user or entity’s state and can capture activ...

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