نتایج جستجو برای: polarity index

تعداد نتایج: 420779  

2006
EMMANOUIL N. ANAGNOSTOU Emmanouil N. Anagnostou

This study presents the first assessment of a newly developed polarity retrieval scheme augmenting a Very Low Frequency (VLF) long-range lightning detection network (named ZEUS). The polarity scheme uses the Extremely Low Frequency (ELF) in conjunction with the VLF waveform. The measured ELF signal is compared with simulated ELF signal to extract the polarity sign. This comparison also produces...

Journal: :international journal of society, culture & language 2016
meshesha make jobo

the purpose of this study was to analyze selected wolaita proverbs for their reflection of prejudiced negative images of femininity. the subjects used for the current study were 20 theme-relevant proverbs collected by interviewing systematically selected 12 elders and conducting participant-based observation. the qualitative research design was used to conduct this study. the result indicated t...

Journal: :Natural Language & Linguistic Theory 2004

1999
E. Olsen

Cycle stratigraphic and magnetostratigraphic analyses of a -5000-m-thick composite section obtained by scientific oring in the Newark rift basin of eastern North America provide a high-resolution astronomically calibrated geomagnetic polarity timescale (GPTS) spanning over 30 m.y. of the Late Triassic and earliest Jurassic. Only normal polarity is found in -1000 m of interbedded volcanics and c...

2002
Paul E. Olsen

Cycle stratigraphic and magnetostratigraphic analyses of a -5000-m-thick composite section obtained by scientific coring in the Newark rift basin of eastern North America provide a high-resolution astronomically calibrated geomagnetic polarity timescale (GPTS) spanning over 30 m.y. of the Late Triassic and earliest Jurassic. Only normal polarity is found in -1000 m of interbedded volcanics and ...

Journal: :Langmuir : the ACS journal of surfaces and colloids 2014
Xinyu Wang Richard D Tilley James J Watkins

The use of magnetic nanoparticles (MNPs) in real-world applications is often limited by the lack of stable solutions of monodisperse NPs in appropriate solvents. We report a facile one-pot ligand exchange reaction that is fast, efficient, and thorough for the synthesis of hydrophilic MNPs that are readily dispersed in polar organic and protic solvents (polarity index = 3.9-7.2) including alcoho...

2009
SEONGHOON KIM HYUNDO HUH SANGHYUN CHOI CHUL HEE MIN JINHO CHOI

When the PDD (percentage depth dose) in the megavoltage beams is measured in the water phantom using the dosimetry system, the polarity and ion recombination effects of ionization chambers with depth in water are not usually taken into consideration. The polarity and ion recombination effects may vary depending on the radiation type and spectrum, which vary with depth in water [1-4]. If those e...

2013
Cüneyd Murad Özsert Arzucan Özgür

Determining polarity of words is an important task in sentiment analysis with applications in several areas such as text categorization and review analysis. In this paper, we propose a multilingual approach for word polarity detection. We construct a word relatedness graph by using the relations in WordNet of a given language. We extend the graph by connecting the WordNets of different language...

Journal: :Physical chemistry chemical physics : PCCP 2013
Dan Bai Andrew C Benniston Jerry Hagon Helge Lemmetyinen Nikolai V Tkachenko Ross W Harrington

A linear molecular dyad was synthesised comprising a pyrene-thiophene energy donor linked via a triazole unit to a borondipyrromethene (Bodipy) energy acceptor. The donor to acceptor separation distance is around 20 Å. Emission from the donor originates from a mixed π-π* and partial charge-transfer state and overlaps favourably with the absorption profile for the acceptor. The level of spectral...

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