Results 1 to 10 of about 1,473,043 (238)

DC-DC Converter Design Issues for High-Efficient DC Microgrid

Communications, 2019
In this article, the electrical properties, as well as the economic aspects of the modular and non-modular solution of the DC-DC photovoltaic converter for DC microgrid subsystem, are described.
Michal Frivaldsky, Jan Morgos
doaj   +1 more source

Effect of processing on fracture toughness of silicon carbide as determined by Vickers indentations [PDF]

Several alpha-SiC materials were processed by hot isostatic pressing (HIPing) and by sintering an alpha-SiC powder containing boron and carbon. Several beta-SiC materials were processed by HIPing a beta-SiC powder with boron and carbon additions.
Dannels, Christine M., Dutta, Sunil
core   +1 more source

Phonon Knudsen flow in nanostructured semiconductor systems

, 2005
We determine the size effect on the lattice thermal conductivity of nanoscale wire and multilayer structures formed in and by some typical semiconductor materials, using the Boltzmann transport equation and focusing on the Knudsen flow effect.
Hyldgaard, Per, Ziambaras, Eleni
core   +1 more source

Optical properties of silicon carbide for astrophysical applications I. New laboratory infrared reflectance spectra and optical constants

, 2008
Silicon Carbide (SiC) optical constants are fundamental inputs for radiative transfer models of astrophysical dust environments. However, previously published values contain errors and do not adequately represent the bulk physical properties of the cubic
Corman, A. B., Hofmeister, A. M., Pitman, K. M., Speck, A. K.   +3 more
core   +1 more source

Long-term high-temperature aging mechanism of copper-metallized through-glass vias: a combined nanoindentation test and hybrid Potts-phase field simulation study

Microsystems & Nanoengineering
The reliability of through-glass via (TGV) interconnects is critical for advanced semiconductor packaging. This work investigates microstructural and mechanical evolution in electroplated TGV–Cu subjected to long-term aging at 250 °C.
Junwei Chen, Zezhan Li, Bin Yang, Xiao Hu, Wenyu Li, Zichuan Li, Xuyang Yan, Zhoudong Yang, Jiao Liang, Guannan Yang, Chao Gu, Changran Zheng, Chengqiang Cui, Guoqi Zhang, Jiajie Fan   +14 more
doaj   +1 more source

Multilayer epitaxial graphene formed by pyrolysis of polycrystalline silicon-carbide grown on c-plane sapphire substrates

, 2011
We use ultra-high vacuum chemical vapor deposition to grow polycrystalline silicon carbide (SiC) on c-plane sapphire wafers which are then annealed between 1250 and 1450{\deg}C in vacuum to create epitaxial multilayer graphene (MLG).
Breslin, Christopher M., Chu, Jack O., Dimitrakopoulos, Christos, Grill, Alfred, Krishnan, Mahadevaiyer, Liu, Zihong, McArdle, Timothy J., Wisnieff, Robert, Zhu, Yu   +8 more
core   +1 more source

Machining parameter optimization of Al/SiC/Gr hybrid metal matrix composites using ANOVA and grey Relational analysis [PDF]

FME Transactions, 2020
This research work focuses on the impact of graphite addition to the Al/SiC hybrid metal matrix composites manufactured by stir casting process. Three specimens were prepared with Al6061 alloy + 5 wt. % SiC and varying weight percent of graphite.
Elango Mallichetty, Annamalai Krishnamoorthy   +1 more
doaj  

The relations of quality of life in patients with lupus erythematosus: Regression models versus qualitative comparative analysis(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic):(sic)(sic)(sic)(sic)(si c)(sic)(sic)(sic)(sic)(sic)

, 2019
Background Lupus erythematosus (LE) is an autoimmune disease that can have negative repercussions on the quality of life (QL) of those who suffer from it. The QL can be influenced by socio-demographic factors are related to the disease itself. Aims To analyse the associative power of socio-demographic (age and sex) and medical variables (type of lupus,
Rioja E, Valero-Moreno S, Gimenez-Espert M, Prado-Gasco V   +3 more
openaire   +2 more sources

Building of super high-efficiency processing technology based on innovative concept (Establishment of effective polishing process of SiC substrate using Dilatancy pad tool with bowl feed method)

Nihon Kikai Gakkai ronbunshu, 2015
In this study, we propose innovative polishing method for hard-to-process semiconductor substrate such as SiC. Our innovative polishing method mainly consists of 2 technologies.
Toshiro K. DOI, Kiyoshi SESHIMO, Tsutomu YAMAZAKI, Masanori OHTSUBO, Hideaki NISHIZAWA, Sachi MURAKAMI, Daizo ICHIKAWA, Yoshio NAKAMURA, Tadakazu MIYASHITA, Yoshihide KAWAMURA, Masataka TAKAGI, Hiroshi KASHIWADA, Hideo AIDA   +12 more
doaj   +1 more source

Design of a Customized Multipurpose Nano-Enabled Implantable System for In-Vivo Theranostics

Sensors, 2014
The first part of this paper reviews the current development and key issues on implantable multi-sensor devices for in vivo theranostics. Afterwards, the authors propose an innovative biomedical multisensory system for in vivo biomarker monitoring that ...
Esteve Juanola-Feliu, Pere Ll. Miribel-Català, Cristina Páez Avilés, Jordi Colomer-Farrarons, Manel González-Piñero, Josep Samitier   +5 more
doaj   +1 more source