نتایج جستجو برای: temporal variations

تعداد نتایج: 419208  

Journal: :Remote Sensing 2018
Yanqun Pan Fang Shen Xiaodao Wei

Suspended particulate matter (SPM) concentrations ([SPM]) in the Yangtze estuary, which has third-order bifurcations and four outlets, exhibit large spatial and temporal variations. Studying the characteristics of these variations in [SPM] is important for understanding sediment transport and pollutant diffusion in the estuary as well as for the construction of port and estuarine engineering st...

2012
Gang Wu Jiang Zhu Fuhong He Weiwei Wang Songnian Hu Jun Yu

The mammalian circadian system controls various physiology processes and behavior responses by regulating thousands of circadian genes with rhythmic expressions. In this study, we redefined circadian-regulated genes based on published results in the mouse liver and compared them with other gene groups defined relative to circadian regulations, especially the non-circadian-regulated genes expres...

2002
John S. Irwin David Carruthers James Paumier Jenny Stocker

INTRODUCTION Models of atmospheric processes simulate only certain spatial and temporal scales. The observations used to test the performance of these models are individual realizations (which can be envisioned as coming from ideal ensembles), and are affected by variations unaccounted for within the simulation model. Given this, it makes sense to ask the models to replicate variations having c...

2001
David N. Burrows George G. Pavlov Hiroshi Tsunemi

We present a series of monitoring observations of the Crab Nebula with the Chandra X-ray Observatory, focusing on the temporal evolution of the structure. This series of 8 observations, spanning a period of approximately six months, shows the dynamic nature of the inner Xray structures. We detected outward moving “wisps” from the recently discovered inner ring seen in optical observations. We a...

Journal: :Biological psychology 2005
Pascal Hot Pierre Leconte Henrique Sequeira

Diurnal temporal variations of emotional reactivity were investigated in relationship with fluctuations of psychophysiological state, evaluated by tonic autonomic activity. Neutral and unpleasant pictures, selected to constitute seven matched sets, were evaluated by 12 participants during seven sessions in the course of daytime. Skin conductance level (SCL) was recorded at the beginning of each...

Journal: :Canadian journal of public health = Revue canadienne de sante publique 1998
S W Wen S Liu D Fowler

PURPOSE To analyze spatio-temporal variations of neonatal length of in-hospital stay in Canada. METHOD The length of in-hospital stay of 1,469,761 newborns in Canadian hospitals from April 1, 1984 to March 31, 1995 recorded by the Canadian Institute for Health Information was analyzed. RESULTS Neonatal length of in-hospital stay decreased from an average of 5.0 days in 1984 to 2.9 days in 1...

2007
Mathieu Barthet Richard Kronland-Martinet Sølvi Ystad

Former studies show that removing brightness temporal variations of tones in an expressive clarinet performance induces a decrease in the appreciation judgments among listeners. This study aims to investigate the reciprocal process where a time-varying brightness pattern is extracted from a clarinet performance and added to MIDI sound sequences generated by sampler-based instruments. Performanc...

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