نتایج جستجو برای: etl

تعداد نتایج: 1071  

Journal: :EcoMat 2022

The two-dimensional mixed-valence tin oxide Sn3O4 with a low defect density of states and suitable energy band structure has shown great potential as the electron transport layer (ETL) for perovskite solar cells (PSCs). However, is should be modulated to demonstrate its application more efficient PSCs. Here, doped yttrium (Y) optimize electronic properties improve performance PSCs based on ETL....

Journal: :Frontiers in Applied Mathematics and Statistics 2018

Journal: :Journal of the Brazilian Computer Society 2008

Journal: :International Journal of Database Management Systems 2014

Journal: :International Journal of Database Management Systems 2016

2002
Panos Vassiliadis Alkis Simitsis Spiros Skiadopoulos

Extraction-Transformation-Loading (ETL) tools are pieces of software responsible for the extraction of data from several sources, their cleansing, customization and insertion into a data warehouse. In this paper, we focus on the logical design of the ETL scenario of a data warehouse. Based on a formal logical model that includes the data stores, activities and their constituent parts, we model ...

2004
Meng-Hsiu Wu Jiun-Haw Lee Man-Kit Leung Yu-Nu Hsu

In this paper, a 1.85V reduction in driving voltage of an OLED is presented by using an alkali-metal doped electron transport layer (ETL) and a silver (Ag) cathode. Such an ETL is composed of 2,9-dimethyl-4,7-diphenyl 1,10phenanthroline (BCP) doped with Cseium (Cs) to increase the conductivity of the organic material and achieve ohmic contact at the ETL/cathode interface regardless the work fun...

2016
Kay Müller Claus Stadler Ritesh Kumar Singh Sebastian Hellmann

Openly available datasets originate from different data providers which range from government agencies, over commercial enterprises to communities of data enthusiasts. Integrating different source datasets into a single RDF graph by using ETL (Extract-Transform-Load) systems which perform offline transformation, ontology matching and linking techniques usually takes many iterations of revisions...

Journal: :Nanoscale 2015
Gill Sang Han Hyun Suk Chung Dong Hoe Kim Byeong Jo Kim Jin-Wook Lee Nam-Gyu Park In Sun Cho Jung-Kun Lee Sangwook Lee Hyun Suk Jung

We demonstrate high-performance perovskite solar cells with excellent electron transport properties using a one-dimensional (1D) electron transport layer (ETL). The 1D array-based ETL is comprised of 1D SnO2 nanowires (NWs) array grown on a F:SnO2 transparent conducting oxide substrate and rutile TiO2 nanoshells epitaxially grown on the surface of the 1D SnO2 NWs. The optimized devices show mor...

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