نتایج جستجو برای: temporal variation

تعداد نتایج: 525481  

ژورنال: آبخیزداری ایران 2021

The process of splash of soil particles by raindrops and their transport by splash or surface shallow flow is considered as interrill erosion, which can reduce soil fertility and cause pollution of surface water. This research was carried out to investigate the temporal variation of interrill erosion in different soils affected by surface slope. For this purpose, laboratory experiments were car...

In this study, five sequences of Landsat sensors including MSS, TM, ETM+ and OLI at unequal intervals spanning 42 years between 1973 and 2015, were analyzed to investigate the spatial and temporal variation of salt crusts in Sbzevar playa, central Iran. Landsat satellite imageries and ASTER digital elevation model were prepared, and spatial-temporal analyses were carried out in ENVI and GIS. Fu...

Babak Bakhshayesh-Eghbali, Yaser Moaddabi, Hamidreza Hatamian , Mozaffar Hosseininezhad ,

Background: Temporal variation of stroke onset is suggested in some studies contained somewhat varieties. It is proposed that some predisposing changes occur in some ascertained times consequently resulted in stroke occurrence in some special times. Objective: To determine the circadian and circaseptan variation of stroke onset. Materials and Methods: This cross sectional study was conducted ...

Journal: :crop breeding journal 0
m. esmaeilzadeh moghaddam seed and plant improvement institute, agricultural research, education and extension organization (areeo), karaj, iran. m. r. jalal kamali internatioanl maize and wheat improvement cenetr (cimmyt), karaj, iran. n. soda islamic azad university, karaj, iran. s. sadre jahani4 agriculture faculty of varamin, islamic azad university, varamin, iran. m. ghodsi khorasan-e-razavi agriculture and natural research center, agricultural research, education and extension organization (areeo), mashhad, iran.

a field experiment was conducted at the seed and plant improvement institute research field station in karaj, iran, during the 2009-10 and 2010-11 growing seasons to estimate genetic progress and the variation in penological and agronomic characteristics in 13 irrigated facultative/winter bread wheat (triticum aestivum l.) cultivars released in iran between 1943 and 2011. trends of temporal var...

Journal: :Cerebral cortex 2017
Yann Le Guen Guillaume Auzias François Leroy Marion Noulhiane Ghislaine Dehaene-Lambertz Edouard Duchesnay Jean-François Mangin Olivier Coulon Vincent Frouin

The influence of genes on cortical structures has been assessed through various phenotypes. The sulcal pits, which are the putative first cortical folds, have for long been assumed to be under tight genetic control, but this was never quantified. We estimated the pit depth heritability in various brain regions using the high quality and large sample size of the Human Connectome Project pedigree...

Journal: :The Journal of neuroscience : the official journal of the Society for Neuroscience 1992
C E Connor K O Johnson

A previous study showed that roughness perception may depend on either temporal or spatial variations in firing rate among cutaneous mechanoreceptive afferents. The present study was designed to distinguish between these hypotheses. Plastic surfaces embossed with patterns of dots designed to produce predictable alterations in temporal and spatial firing rate variation were used as stimuli in ps...

2012
Jerry L. Hatfield John H. Prueger

Evapotranspiration represents the combined loss of soil water from the earth’s surface to the atmosphere through evaporation of water from the soil or plant surfaces and transpiration via stomates of the plant. In agricultural production systems these two losses of water represent a major component of the water balance of the crop. If we examine evapotranspiration over time throughout a growing...

2005
M. de Graaf I. Aben

Temporal and spectral variation of desert dust and biomass burning aerosol scenes from 1995–2000 using GOME M. de Graaf, P. Stammes, and I. Aben Royal Netherlands Meteorological Institute (KNMI), Wilhelminalaan 10, 3732 GK De Bilt, The Netherlands Netherlands Institute for Space Research (SRON), Sorbonnelaan 2, 3584 CA Utrecht, The Netherlands Received: 9 November 2005 – Accepted: 20 December 2...

2009
Yusuke Kubota Jungmee Lee Anastasia Smirnova Judith Tonhauser

A particular meaning can be realized by morphosyntactically distinct expressions across languages. One of the challenges for cross-linguistic research is to account for convergence in meaning in light of morphosyntactic variation. This paper examines cross-linguistic variation in the distribution and interpretation of tense in temporal adjunct clauses (TACs, e.g. English John crossed the street...

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