Results 11 to 20 of about 361,795 (295)

Ammonia Emissions in SI Engines Fueled with LPG

open access: yesEnergies, 2021
Ammonia is a toxic exhaust component emitted from internal combustion engines. Both pure ammonia and the products of its reaction with nitrogen and sulfur compounds, being the source of particulate matter (PM) emissions, are dangerous for human health ...
Andrzej Żółtowski, Wojciech Gis
doaj   +1 more source

Street view imagery in urban analytics and GIS: A review

open access: yes, 2021
Street view imagery has rapidly ascended as an important data source for geospatial data collection and urban analytics, deriving insights and supporting informed decisions. Such surge has been mainly catalysed by the proliferation of large-scale imagery
Filip Biljecki, Koichi Ito
semanticscholar   +1 more source

Perfect sampling of GI/GI/c queues [PDF]

open access: yesQueueing Systems, 2018
We introduce the first class of perfect sampling algorithms for the steady-state distribution of multi-server queues with general interarrival time and service time distributions. Our algorithm is built on the classical dominated coupling from the past protocol. In particular, we use a coupled multi-server vacation system as the upper bound process and
Jose H. Blanchet, Jing Dong, Yanan Pei
openaire   +2 more sources

The Issues of the Air-Fuel Ratio in Exhaust Emissions Tests Carried out on a Chassis Dynamometer

open access: yesEnergies, 2021
Vehicle exhaust emission tests use exhaust sampling systems that dilute the exhaust gas with ambient air. The dilution factor DF is calculated assuming that the combustion is complete, and that the engine is operated at a stoichiometric air-fuel ratio ...
Wojciech Gis, Sławomir Taubert
doaj   +1 more source

Application of GIS in Agriculture in Promoting Evidence-Informed Decision Making for Improving Agriculture Sustainability: A Systematic Review

open access: yesSustainability, 2022
The objective of this review was to synthesize existing evidence on GIS and RS application in agriculture in enhancing evidence-informed policy and practice for improving agriculture sustainability and identifying obstacles to their application ...
Mwehe Mathenge, B. Sonneveld, J. Broerse
semanticscholar   +1 more source

Seasonality and timing of peak abundance of Aedes albopictus in Europe: Implications to public and animal health

open access: yesGeospatial Health, 2021
Aedes albopictus is a known vector of dengue and chikungunya. Understanding the population dynamics characteristics of vector species is of pivotal importance to optimise surveillance and control activities, to estimate risk for pathogen-transmission ...
Mina Petrić   +7 more
doaj   +1 more source

SPATIAL ACCESSIBILITY OF URBAN PARKS IN TANGIER CITY, MOROCCO [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2021
Recently, Urban Parks presents an essential role of humanity, because they provide a many of benefits that support our physical and social health. Therefore, UP (Urban Parks) are crucial part of whole urban environment. In this paper, we present the role
M. Maliari   +4 more
doaj   +1 more source

A Modular System Based on U-Net for Automatic Building Extraction from very high-resolution satellite images [PDF]

open access: yesE3S Web of Conferences, 2022
Recently, convolutional neural networks have grown in popularity in a variety of fields, such as computer vision and audio and text processing. This importance is due to the performance of this type of neural network in the state of the art, and in a ...
El Asri Smail Ait   +3 more
doaj   +1 more source

Spatial analysis and GIS in the study of COVID-19. A review

open access: yesScience of the Total Environment, 2020
This study entailed a review of 63 scientific articles on geospatial and spatial-statistical analysis of the geographical dimension of the 2019 coronavirus disease (COVID-19) pandemic.
Iván Franch-Pardo   +3 more
semanticscholar   +1 more source

GIScience in the era of Artificial Intelligence: a research agenda towards Autonomous GIS [PDF]

open access: yesAnn. GIS
The advent of generative AI exemplified by large language models (LLMs) opens new ways to represent and compute geographic information and transcends the process of geographic knowledge production, driving geographic information systems (GIS) towards ...
Zhenlong Li   +15 more
semanticscholar   +1 more source

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