نتایج جستجو برای: pressure wind spatio temporal

تعداد نتایج: 722041  

2000
Thomas Bittner

In this paper I define spatio-temporal regions as pairs consisting of a spatial and a temporal component and I define topological relations between them. Using the notion of rough sets I define approximations of spatio-temporal regions and relations between those approximations. Based on relations between approximated spatio-temporal regions configurations of spatio-temporal objects can be char...

2001
Thomas Bittner

We define a family of qualitative spatio-temporal relations such as sameplace-same-time and same-path-different-time, which describe the relative location of spatio-temporal objects within places or along paths. The relations in question are approximate, and this means that some of them are context-dependent. We explore the relationships between context, judgments that are made in certain conte...

Introduction Geographical situation of Iran is a place for interacting many physical and human processes which lead to specific precipitation climatology in the country. The month to month variation of precipitation is one of  the features which the precipitation climatology may reflect due to tempo - spatial characteristics. In fact, monthly distribution of precipitation is one of precipitati...

The aim of this study is modeling spatiotemporal variations of albedo. This study was conducted using simultaneous effects of several components, such as wetness of surface layer of soil, cloudiness, topography and vegetation density (NDVI), using MEERA2 model with a resolution of 50 in 50 km during 2000-2010 in Iran. The results of spatial analysis of albedo values in Iran showed that the high...

2001
R. Avila J. Vernin

We present a method for simultaneous measurement of the vertical distribution of the optical turbulence strength C 2 N (h) and wind velocity V(h) in the Earth's atmosphere, based on an analysis of spatio-temporal correlations of stellar scintillation images obtained with generalized scidar. A statistical comparison of V(h) obtained with this method and instrumented balloons supports the use of ...

اکبری, مهری, بخشی‎زاده, فریماه, رضائیان, هانی,

Air pollution has become one of the main problems of cities. Among the sources of air pollution, vehicular traffic plays an important role. Planning for efficient management and control of the air pollution caused by vehicular traffic requires accurate information on spatio-temporal dispersion of the pollutions. This research studies 3D spatio-temporal dispersion of NOx pollution caused by vehi...

Amir Seifo dini, Mohammad reza, Mohammadi Pour, Fariborz, Naderi, Sasan,

The purpose of current study was to investigate the spatio-temporal gait parameters and knee varus angle during walking at different speeds in young with knee varus. 18 subjects with varus deformity classified at grade 3 of bowleg and 17 healthy subjects, volunteered to participate in this study. The following variables include stance, swing, double support and cycle time, cadence, stride le...

Journal: :Energy Systems 2021

We focus on deep learning algorithms, improving upon the weather research and forecasting (WRF) model, we show that combination of these methods produces day-ahead wind speed predictions high accuracy, with no need for previous-day measurements. also data offer a significant enhancement in short-term neural network hour-ahead predictions, assuming they are available daily basis. Our main contri...

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