نتایج جستجو برای: spatial variable measurement

تعداد نتایج: 1020391  

The effect of measurement errors on adaptive and non-adaptive control charts has been occasionally considered by researchers throughout the years. However, that effect on the variable sample size and sampling interval (VSSI) control charts has not so far been investigated. In this paper, we evaluate the effect of measurement errors on the VSSI control charts. After a model development, the effe...

This paper considers spatial distribution of industrial activities and effective factors on such a distribution. Ellison and Glaeser’s spatial concentration index, has been used for measureing spatial distribution of industry. This index has been calculated by Ad-value variable for 30 provinces of Iran and for period of 2006-2013. So, The spatial panel data model has been used in order to...

Akhoondzadeh hanzaei, Mahdi , Bazrgar Bajestani, Alireza ,

Land Surface Temperature (LST) is one of the most important physical and climatological  crucial yet variable parameter in environmental phenomena studies such as, soil moisture conditions, urban heat island, vegetation health, fire risk for forest areas and heats effects on human’s health. These studies need to land surface temperature with high spatial and temporal resolution. Remote sensing ...

2010
Jeonghye Choi Sam K. Hui David R. Bell

Web Appendix A. Low-rank spatial smoothing of the broadband access variable Our measure of the Internet access availability has a few known imperfections: there are some missing data for some zip codes, and in some cases services are under-reported. To improve the quality of this variable, we implement a low-rank thin plate spline smoother (Wand 2003) to correct for measurement errors. Here, we...

2004
Peter Speckbacher Werner Weber

Abshct This paper describes a new measurement technique, the forward gated-diode current characterized at low drain voltages to be applied in MOSFET’s for investigating hot-carrier stress-induced defects at high spatial resolution. The generatiodrecombination current in the drain-to-substrate diode as a function of gate voltage, combined with two-dimensional numerical simulation, provides a sen...

Journal: :Transactions of the Society of Instrument and Control Engineers 1973

2005
Chia-Ying Liu Padmini Varadarajan Gerald M. Pohost Krishna S. Nayak

Introduction: The ability of MRI to quantify blood flow with high spatial and temporal resolution has made it a method of choice for accurate blood flow mapping in-vivo. The challenges comprise the development of techniques to accurately assess blood flow through heart valves by incorporating appropriate respiratory and cardiac motion compensation schemes as well as very fast measurement techni...

Journal: :Transactions of the Society of Instrument and Control Engineers 1972

Journal: :Journal of Physics: Conference Series 2005

2001
Shashi Shekhar Yan Huang Weili Wu

Spatial data mining is the process of discovering interesting and previously unknown, but potentially useful, patterns from large spatial datasets. Extracting interesting and useful patterns from spatial datasets is more diicult than extracting the corresponding patterns from traditional numeric and categorical data due to the complexity of spatial data types, spatial relationships, and spatial...

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