نتایج جستجو برای: modern spatial statistics method such as spatial auto correlation global moran

تعداد نتایج: 7396464  

Journal: :Magnetic resonance in medicine 2001
R M Heidemann M A Griswold A Haase P M Jakob

Recently a self-calibrating SMASH technique, AUTO-SMASH, was described. This technique is based on PPA with RF coil arrays using auto-calibration signals. In AUTO-SMASH, important coil sensitivity information required for successful SMASH reconstruction is obtained during the actual scan using the correlation between undersampled SMASH signal data and additionally sampled calibration signals wi...

ژورنال: تحقیقات موتور 2020
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The work involved a fundamental study of auto-ignition under unusually high knock intensities for an optical spark ignition engine. The single-cylinder research engine adopted included full bore overhead optical access capable of withstanding continuous peak in-cylinder pressures of up to 150bar. A heavy knock was deliberately induced under relatively low loads using inlet air heating and a pri...

Journal: : 2022

This study evaluates the agglomeration of different types enterprises in Vietnam and influence among others by analyzing concentration distribution using Moran I index LISA index. (Local Indicators Spatial Association). Research data includes enterprise taken from statistics provinces for period 2005 to 2019 Statistical Yearbook spatial extracted GADM (Database Global Administrative Areas). res...

In statistics it is often assumed that sample observations are independent. But sometimes in practice, observations are somehow dependent on each other. Spatiotemporal data are dependent data which their correlation is due to their spatiotemporal locations.Spatiotemporal models arise whenever data are collected across bothtime and space. Therefore such models have to be analyzed in termsof thei...

Coal quality-tonnage curves are helpful tools in optimum mine planning and can be estimated using geostatistical simulation methods. In the presence of spatially cross-correlated variables, traditional co-simulation methods are impractical and time consuming. This paper investigates a factor simulation approach based on minimization of spatial cross-correlations with the objective of modeling s...

Journal: :Geographical Analysis 2021

This study discusses the importance of balancing spatial and non-spatial variation in regression modeling. Unlike spatially varying coefficients (SVC) modeling, which is popular statistics, non-spatially (NVC) modeling has largely been unexplored fields. Nevertheless, as we will explain, consideration needed not only to improve model accuracy but also reduce spurious correlation among coefficie...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی - دانشکده علوم تربیتی و روانشناسی 1393

the purpose of this study was to investigate the relationship between teachers’ class management practices with students’ self- regulated learning and academic self-efficacy. in this study relating to the management class, three dimensions, (training management, people management and behavior management) and three style (interventionist, interactionist and non-interventionist) was considered. r...

This research was conducted to investigate spatial variability and estimate tree attributes in a plantation forest in the Caspian region of Iran using geostatistical analysis. Sampling was performed based on a 50m?125m systematic grid in a maple stand (Acer velutinum Boiss) 18 years of age using circular samples of 200m2 area. Totally, 96 sample plots were measured in 63 hectares and 14.25 he...

Journal: :Coasts 2022

Coastal erosion is a common phenomenon along the world’s coasts. Studying it complex because such studies must cover large portions of land, and necessary to understand multiple processes that interact in each area, so important recognize regional patterns allow for defining representativeness relation surrounding dynamics. Spatial statistics can be used coastal geomorphology identify quantify ...

2006
Marcos Deon Vilela de RESENDE Robin THOMPSON Sue WELHAM

The advantages of using spatial analysis in annual crop experiments are well documented. There is much less evidence for perennial crops. For the sequence of measurements in perennial crops, apparently, there are no published articles in spatial analysis to date. This paper aimed at the comparison of several models, including auto-regressive, ante-dependence and character process models, in mod...

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