نتایج جستجو برای: electroluminescent el

تعداد نتایج: 284271  

2009
W. Daza D. Lopez J. P. Riveros

Pediatrics Gastroenterologist & Master in Clinical Nutrition, Chief of Pediatrics Gastroenterology, Hepatology and Nutrition Department Clínica del Niño PREVIANDES & Professor of Pediatric Gastroenterology & Pediatric Department Universidad El Bosque, Postgraduate Student of Clinical Epidemiology Clínica del Niño PREVIANDES, Pediatrician Universidad El Bosque. Bogota, Colombia Correspondence: D...

Journal: :Nanotechnology 2011
Ying-Yuan Huang Liang-Yi Chen Chun-Hsiang Chang Yu-Hsuan Sun Yun-Wei Cheng Min-Yung Ke Yu-Hsin Lu Hao-Chung Kuo JianJang Huang

For InGaN/GaN based nanorod devices using a top-down etching process, the optical output power is affected by non-radiative recombination due to sidewall defects (which decrease light output efficiency) and the mitigated quantum confined Stark effect (QCSE) due to strain relaxation (which increases internal quantum efficiency). Therefore, the exploration of low-temperature optical behaviors of ...

Journal: :Journal of the Illuminating Engineering Institute of Japan 1994

Journal: :Nuclear Tracks and Radiation Measurements (1982) 1985

2004
Ziad Aly

One of the most crucial environmental problems affecting developing countries in arid and semi-arid regions is soil salinity. Its detection using radar imaging systems is one of promising domains of remote sensing research. Detection is based essentially on the relationship between the quantity of existing salts in the soil, the soil moisture content, and the dielectric properties of this mixtu...

2003
Maria Clara Castro Patrick Goblet

[1] Paleoclimatic reconstruction using noble gas concentrations in the Carrizo aquifer of southwest Texas and water ages determined through simulation of groundwater age reveals abrupt late Holocene temperature increases previously unidentified through C dating. Of particular interest is a temperature increase of up to 3.4 C in the first half of the last millennium following a cold period betwe...

Journal: :Auton. Robots 2010
Advait Jain Charles C. Kemp

Assistive mobile robots that autonomously manipulate objects within everyday settings have the potential to improve the lives of the elderly, injured, and disabled. Within this paper, we present the most recent version of the assistive mobile manipulator EL-E with a focus on the subsystem that enables the robot to retrieve objects from and deliver objects to flat surfaces. Once provided with a ...

2012

This paper is concerned with calculating boiler efficiency as one of the most important types of performance measurements in any steam power plant. That has a key role in determining the overall effectiveness of the whole system within the power station. For this calculation, a Visual-Basic program was developed, and a steam power plant known as El-Khmus power plant, Libya was selected as a cas...

2002
Manuel LÓPEZ Julian BOMMER Patricia MÉNDEZ

Throughout the history of El Salvador, construction practices have been influenced by earthquakes happening in that region. One of the most successful attempts, developed by the Salvadorian indigenous population, was bahareque. In fact, a primitive type of bahareque was already used in El Salvador before the Spanish invasion. This first bahareque consisted of small tree branches bonded with cla...

1999
Stanley A. Changnon

The societal, economic, and environmental impacts of weather events and climate conditions in the United States normally vary spatially across the nation, and for any given period such as a season or year, the impacts reveal a mix of regional winners and losers. This was certainly true with the impacts resulting from El Niño-generated weather during 1997–98. The early official predictions of mo...

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