نتایج جستجو برای: d electrical imaging tomography surveys to map areas with moderately complex geology loke

تعداد نتایج: 13620879  

2005
Greg A. Oldenborger Partha S. Routh Michael D. Knoll

S U M M A R Y Limitations of imaging using electrical resistivity tomography (ERT) arise because of the difficulty of quantifying the reliability of tomographic images. A major source of uncertainty in tomographic inversion is data error. Data error due to electrode mislocations is characterized by the sensitivity of electrical potential to both source and receiver positions. This sensitivity i...

The studied region in this research (Alborz province) is structurally located in Alborz poly_orogenic system of northern Iran. The purpose of this research is combining the remote sensing and geology sciences to show fault lineaments by analyzing satellite data in a vast region and also comparison between lineaments layer and recognized faults in geology maps. Firstly, two scenes of Landsat ETM...

2007
Hongze Liu Travis E. Oliphant Aaron R. Hawkins Stephen M. Schultz Dah-Jye Lee Brian D. Jeffs BRIGHAM YOUNG Michael Wirthlin Alan R. Parkinson

A HIGH-RESOLUTION MICROSCOPIC ELECTRICAL IMPEDANCE IMAGING MODALITY: SCANNING IMPEDANCE IMAGING Hongze Liu Department of Electrical and Computer Engineering Doctor of Philosophy Electrical impedance imaging is an imaging technique which has the capability of revealing the spatial distribution of the electrical impedance inside biological tissues. Classical electrical impedance imaging including...

Gholamali Shabani Reza Najafi Tayebeh Hadizad

In recent years, several radiopharmaceuticals have been developed for imaging regional cerebral blood flow (rCBF) such as 75Se labelled PIPSE and MOSE, ²º¹TI labelled DDC and 99mTc labelled HMPAO. HMPAO with two asymmetric carbon atoms (At the 3 and 9 positions), produces d,1 and meso isomers, only one of which is retained in the brain. Rapid intracellular conversion of 99mTc-d,1-HMPAO to...

Water plays a vital role in the development of activities in an area. The surface water resources are inadequate to fulfill the water demand. Productivity through groundwater is quite high as compared to surface water, but groundwater resources have not yet been properly exploited. Keeping this view, the present study attempts to select and delineate various groundwater potential zones for the ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - پژوهشگاه دانشهای بنیادی (مرکز تحقیقات فیزیک نظری و - پژوهشکده علوم نانو 1392

among the low–dimensional allotropes of carbon, nanotubes and graphene have attracted very much attention from nano–science and nanotechnology specialists. they have been proposed as building blocks in nanometer device engineering. however, these structures are not defect–free. in this thesis, we focused on defective carbon nanotubes and graphene, and studied the effect of couple of very common...

Journal: :journal of mining and environment 2014
alireza arab-amiri fereydoun sharifi abolghasem kamkar-rouhani

the need for clean groundwater resources to have sustainable development in a country is undoubted. due to the importance and high quality of karstic waters in supplying water in iran especially in shahrood city, it is attempted in this research work to recognize and explore karstic waters in southwest of tepal area, shahrood. for this purpose, integration of the results obtained from the metho...

Journal: :Quaternary science advances 2021

Early and early Middle Pleistocene glaciations in midcontinental USA are poorly understood relative to more recent Illinoian Wisconsinan glaciations, largely because pre-Illinoian glacial landforms deposits eroded buried. In this paper, we present a new interpretation of buried, features along the Laurentide margin northeastern Nebraska using Airborne ElectroMagnetics (AEM) supplemented with bo...

Journal: Desert 2020

Soil salinity undergoes significant spatial and temporal variations; therefore, salinity mapping is difficult, expensive, and time consuming. However, researchers have mainly focused on arid soils (bare) and less attention has been paid to halophyte plants and their role as salinity indicators. Accordingly, this paper aimed to investigate the relationship between soil properties, such as electr...

ژورنال: علوم آب و خاک 2012
امین گلشاهی, , علیرضا سفیانیان, , لقمان خدا کرمی, , مجید افیونی, , نوراله میرغفاری, ,

Among the environmental pollutants, heavy metals according to their irresolvable and physiological effects on living organisms at low concentrations, are of special importance These elements due to low mobility are gradually accumulated in soil Being accumulated in soil, they eventually enter the food chains and threaten human health and other creatures Therefore, studying concentration distrib...

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