Seeding-Layer-Free Deposition of High-k Dielectric on CVD Graphene for Enhanced Gate Control Ability
Crystals, 2022 The gate insulator is one of the most crucial factors determining the performance of a graphene field effect transistor (GFET). Good electrostatic control of the conduction channel by gate voltage requires thin gate oxides.
Yunpeng Yan +4 more
doaj +1 more source
1-3 Piezocomposite design optimised for high frequency kerfless transducer arrays [PDF]
, 2009 Piezocomposites that can operate at frequencies above 30 MHz without spurious modes are required in order to develop sufficiently sensitive high frequency arrays for high resolution imaging.
Dauchy, F. +18 more
core +1 more source
What are the collocational exemplars of high-frequency English vocabulary? on identifying Mwus most representative of high-frequency, lemmatized concgrams [PDF]
, 2016 Collocations, simply defined, are words that have a high frequency of co-occurrence (Biber et al., 1999: Shin, 2006). Collocational fluency is an essential aspect of communicating in and comprehending a second language in a native-like fashion.
Rogers, James M.
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Comparison of non-convex cost functionals for the consideration of phase differences in phaseless near-field far-field transformations of measured antenna fields [PDF]
Advances in Radio Science, 2017 This work introduces two methods which extend the non-convex minimization problem arising in phaseless (NF) far-field (FF) transformations. With the new extensions, knowledge about phase differences between measurement points can be incorporated into ...
J. Knapp +3 more
doaj +1 more source
High-Frequency Modulation Spectroscopy with a THz Quantum-Cascade Laser [PDF]
, 2013 A terahertz absorption spectrometer with a quantum-cascade laser (QCL) for high-resolution molecular spectroscopy is realized. The spectrometer is based on highfrequency (up to 50 MHz) modulation of the QCL frequency.
H.-W. Hubers +11 more
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Slow Recovery and Many Left Behind as Latin America and the Caribbean Navigates the Ripples of the Pandemic - 2021 High-Frequency Phone Surveys - Wave 2 [PDF]
, 2022 To continue monitoring how the Coronavirus (COVID-19) pandemic has affected the welfare of households in the region, the World Bank and the United Nations Development Programme (UNDP) joined forces in 2021
World Bank +1 more
core +2 more sources
Electronics Letters, 2019 The authors propose a control method based on the downhill simplex (Nelder–Mead) method for adaptive optical filters used for channel equalisation in optical communication systems.
L. Baudzus, P.M. Krummrich
doaj +1 more source
Augmented Models of High-Frequency Transformers for SMPS [PDF]
, 2009 The modeling of high-frequency transformers via augmented equivalent circuits is addressed. The augmented models are composed of a low-frequency equivalent and a supplemental element modeled via real rational fitting. They offer both high accuracy levels
Savi, Patrizia +3 more
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High-frequency performance of Schottky source/drain silicon pMOS devices [PDF]
, 2008 A radio-frequency performance of 85-nm gate-length p-type Schottky barrier (SB) with PtSi source/drain materials is investigated. The impact of silicidation annealing temperature on the high-frequency behavior of SB MOSFETs is analyzed using an extrinsic
Snyder, J. +6 more
core +1 more source
A piezoelectric microvalve for compact high frequency high differential pressure micropumping systems [PDF]
, 2003 A piezoelectrically driven hydraulic amplification microvalve for use in compact high-performance hydraulic pumping systems was designed, fabricated, and experimentally characterized. High-frequency, high-force actuation capabilities were enabled through
Steyn, J.L. +6 more
core +1 more source