نتایج جستجو برای: nbr

تعداد نتایج: 866  

2014
GUIPING WANG SHUYU CHEN JUN LIU

The ever-growing volume and value of data has raised increasing pressure for long-term data protection in storage systems. Moreover, the redundancy in data further aggravates such pressure in these systems. It has become a serious problem to protect data while eliminating data redundancy, saving storage space and network bandwidth as well. Data deduplication techniques greatly optimize storage ...

2009
S. Veraverbeke S. Lhermitte R. Goossens

In this study a multi-temporal differenced Normalized Burn Ratio (dNBRMT) is presented to assess burn severity of the 2007 Peloponnese (Greece) wildfires. 8day composites were created using the daily near infrared (NIR) and mid infrared (MIR) reflectance products of the Moderate Resolution Imaging Spectroradiometer (MODIS). Prior to the calculation of the dNBRMT a pixelbased control plot select...

Journal: :Magnetic resonance imaging 2008
David W Carmichael Khalid Hamandi Helmut Laufs John S Duncan David L Thomas Louis Lemieux

In pathological conditions interpretation of functional magnetic resonance imaging (fMRI) results can be difficult. This is due to a reliance on the assumed coupling between neuronal activity and changes in cerebral blood flow (CBF) and oxygenation. We wanted to investigate the coupling between blood oxygen level dependant contrast (BOLD) and CBF time courses in epilepsy patients with generalis...

Journal: :Turkish journal of bioscience and collections 2022

Objective: The objective of this study was to determine the extent and degree severity a burned area resulting from forest fire using Sentinel 2 remote sensing data in Çanakkale, Turkey within Mediterranean Basin, an world where occurrence are increasing. Materials Methods: Pre postfire images were obtained. Normalized Burn Ratio (NBR) index calculated for each scene. Then difference NBR (dNBR)...

2014
Zhenghai Tang Qiuyan Wei Baochun Guo

Materials Butyllithium solution in hexane (1.6 M) and molybdenum disulfide (MoS2, 99.0% purity) with an average diameter of about 1 μm were purchased from Aladdin. Nitrile rubber (NBR) with acrylonitrile content 40%, was manufactured by Jilin Chemical Industry Company, Jilin, China. 1butyl-3-methyimidazolium chloride ionic liquid was supplied by Henan Lihua pharmaceutical Co., Ltd. The chemical...

2017
Suraj Upadhaya

OF THESIS Use of Landsat Data to Characterize Burn Severity, Forest Structure and Invasion by Paulownia (Paulownia Tomentosa) in an Eastern Deciduous Forest, Kentucky Landsat imagery has been used successfully to assess burn severity and monitor postfire forest structure in a variety of ecosystems, but to date there are few documented studies on its application in the eastern deciduous forests ...

2018
Nektarios A. M. Stavrou Tadej Debevec Ola Eiken Igor B. Mekjavic

Previous research, although limited, suggests that both hypoxia and bed rest influence psychological responses by exaggerating negative psychological responses and attenuating positive emotions. The present study investigated the effect of a 21-day prolonged exposure to normobaric hypoxia and bed rest on affective responses and fatigue. Eleven healthy participants underwent three 21-day interve...

1998
Wayne Hu Daniel J. Eisenstein Max Tegmark Martin White

Determining the properties of the dark components of the universe remains one of the outstanding challenges in cosmology. We explore how upcoming CMB anisotropy measurements, galaxy power spectrum data, and supernova ~SN! distance measurements can observationally constrain their gravitational properties with minimal assumptions on the theoretical side. SN observations currently suggest the exis...

Journal: :Journal of research in health sciences 2017
Shima Haghani Morteza Sedehi Soleiman Kheiri

BACKGROUND Traditional statistical models often are based on certain presuppositions and limitations that may not presence in actual data and lead to turbulence in estimation or prediction. In these situations, artificial neural networks (ANNs) could be suitable alternative rather than classical statistical methods. STUDY DESIGN  A prospective cohort study. METHODS The study was conducted i...

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