Results 21 to 30 of about 892,678 (303)

Role of Left Main Coronary Artery Stenosis on Intraoperative Conversion and Mortality in Off-Pump Coronary Artery Bypass [PDF]

open access: yes, 2017
Background: Intraoperative conversion is a major threat in off-pump coronary artery bypass (OPCAB). The conversion rate depends on patient selection and surgeon experience.
Chen, Jeng-Wei;Lin, Cheng-Hsin;Hsu, Ron-Bin   +1 more
core   +1 more source

Hydrogen and Carbon Production via Methane Thermal Decomposition: Effects of Temperature and Residence Time [PDF]

open access: yes한국정밀공학회지
Methane thermal decomposition is a promising technology for producing CO2-free hydrogen. This study experimentally examines how temperature (1,000–1,400oC) and residence time affect methane decomposition in a ceramic tubular reactor.
Mun Hee Lee   +6 more
doaj   +1 more source

Lumped time-delay compensation scheme for coding synchronization in the nonlinear spectral quantization-based all-optical analog-to-digital conversion [PDF]

open access: yes, 2013
In this paper, we propose a novel lumped time-delay compensation scheme for the all-optical analog-to-digital conversion based on soliton self-frequency shift and optical interconnection techniques.
Y, Chongxiu   +9 more
core   +2 more sources

Frequency conversion based on three-wave parametric solitons [PDF]

open access: yes, 2010
Parametric three-wave mixing in quadratic nonlinear crystals provides a versatile means of achieving widely tunable frequency conversion of laser light, thus permitting a substantial extension of the wavelength coverage of laser sources across broad ...
Degasperis, Antonio   +17 more
core   +1 more source

Roles of Mineralogical Phases in Aqueous Carbonation of Steelmaking Slag

open access: yesMetals, 2016
Mineralogical phases of steelmaking slags have significant influences on the carbonation of the slags. In this paper, the effects of temperature and reaction time on the conversion of calcium-related phases and the carbonation degree of a slag sample ...
Huining Zhang   +4 more
doaj   +1 more source

Effect of Metal Oxides and Smelting Dust on SO2 Conversion to SO3

open access: yesAtmosphere, 2021
The purpose of this study was to investigate the effects of metal oxides and smelting dust on the formation of sulfur trioxide during copper, lead, zinc smelting process and flue.
Haipeng Liu   +5 more
doaj   +1 more source

Understanding How People Rate Their Conversations

open access: yes, 2022
User ratings play a significant role in spoken dialogue systems. Typically, such ratings tend to be averaged across all users and then utilized as feedback to improve the system or personalize its behavior. While this method can be useful to understand broad, general issues with the system and its behavior, it does not take into account differences ...
Alexandros Papangelis   +4 more
openaire   +2 more sources

Structural Stabilities and Transformation Mechanism of Rhynchophylline and Isorhynchophylline by Ultra Performance Liquid Chromatography/Time-of-Flight Mass Spectrometry (UPLC/Q-TOF-MS)

open access: yesMolecules, 2015
To reveal the structural stabilities and transformation mechanism of rhynchophylline (RIN) and isorhynchophylline (IRN), HPLC and UPLC-Q-TOF-MS method were developed for the qualitative and quantitative analysis of the conversion rate.
Zhen-Feng Wu   +7 more
doaj   +1 more source

Reactive Organic Suspensions Comprising ZnO, TiO2, and Zeolite Nanosized Adsorbents: Evaluation of Decontamination Efficiency on Soman and Sulfur Mustard

open access: yesToxics, 2021
This paper comprises an extensive study on the evaluation of decontamination efficiency of three types of reactive organic suspensions (based on nanosized adsorbents) on two real chemical warfare agents: soman (GD) and sulfur mustard (HD). Three types of
Raluca Elena Ginghina   +9 more
doaj   +1 more source

Sampling Rate Conversion [PDF]

open access: yes, 2012
This thesis is focused on sampling rate conversion by a rational factor interpolation and decimation and sampling rate coversion by an arbitrary factor interpolation and decimation.
Hylmar, Petr
core   +4 more sources

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