Τμήμα Μηχανικών Μηχανολογίας και Κατασκευαστικής / Department of Mechanical and Manufacturing Engineering: Recent submissions
Now showing items 641-660 of 1036
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Book Chapter
Hybrid metal nanoparticle-semiconductor nanowire assemblies: Synthesis, properties and applications
(Nova Science Publishers, Inc., 2013)Hybrid, semiconductor nanowire - metal nanoparticle assemblies have been investigated extensively in the context of nanotechnology for the development of novel sensors, solar cells, memory, energy storage and catalysis ...
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Book Chapter
Cucurbituril: A Versatile “Bead” for Polyrotaxane Synthesis
(Springer-Verlag, 2004)
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Article
In silico assessment of mouth-throat effects on regional deposition in the upper tracheobronchial airways
(2018)Regional deposition of inhaled medicines is a valuable metric of effectiveness in drug delivery applications to the lung. In silico methods are now emerging as a valuable tool for the detailed description of localized ...
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Article
Anisotropy of the optical dielectric function in the ab plane for YBa2Cu3O7-
(1992)We report ellipsometric measurements from surfaces of three single-crystal samples of YBa2Cu3O7. Two of the samples were untwinned with Tc=90 and 66 K. The third sample was a tetragonal single crystal with low oxygen content ...
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Article
An efficient computational fluid-particle dynamics method to predict deposition in a simplified approximation of the deep lung
(2018)High-fidelity simulations of the complete airway tree are still largely beyond current computational capabilities. Towards large-scale simulations of the human lung, the current study introduces a numerical methodology to ...
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Article
Particle deposition in a realistic geometry of the human conducting airways: Effects of inlet velocity profile, inhalation flowrate and electrostatic charge
(2016)Understanding the multitude of factors that control pulmonary deposition is important in assessing the therapeutic or toxic effects of inhaled particles. The use of increasingly sophisticated in silico models has improved ...
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Article
Regional aerosol deposition in the human airways: The SimInhale benchmark case and a critical assessment of in silico methods
(2018)Regional deposition effects are important in the pulmonary delivery of drugs intended for the topical treatment of respiratory ailments. They also play a critical role in the systemic delivery of drugs with limited lung ...
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Article
Wetting of doped carbon nanotubes by water droplets
(2005)We study the wetting of doped single- and multi-walled carbon nanotubes by water droplets using molecular dynamics simulations. Chemisorbed hydrogen is considered as a model of surface impurities. We study systems with ...
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Article
The effect of flow rate and electrostatic charge on aerosol deposition in a realistic lung geometry
(2018)To be able to predict the fate of therapeutic or pollutant xenobiotic inhaled particles in the human lungs, we need to understand the nature of airflow as it occurs throughout the entire respiratory tract. © 2018, Springer ...
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Conference Object
Computational fluid dynamics (CFD) Simulations of aerosol deposition in the lungs
(TSFP-9, 2015)In the current study, Large Eddy Simulations (LES) are used to investigate the transport and deposition of inhaled aerosol particles (dp = 0.1, 0.5, 1, 2.5, 5, 10 μm) in a realistic geometry of the human airways under ...
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Article
C-axis josephson tunneling between YBa2Cu3O7 − δ and Pb: Direct evidence for mixed order parameter symmetry in a high- Tc superconductor
(1997)C-axis Josephson tunneling experiments in which a conventional superconductor (Pb) is deposited across a single twin boundary of a YBa2Cu3O7 − δ (YBCO) crystal. We measure the critical current as a function of the magnitude ...
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Article
Few-step synthesis, thermal purification and structural characterization of porous boron nitride nanoplatelets
(2016)Hexagonal boron nitride (h-BN) nanoplatelets with 99 wt.% purity, 900 to 2000 nm particle width, 30 to 90 nm particle thickness, 213 m2/g specific surface area (SSA), 66% micropore SSA and 0.85 nm average pore size were ...
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Article
Synthesis of nanoporous graphene oxide adsorbents by freeze-drying or microwave radiation: Characterization and hydrogen storage properties
(2015)In the present work, we synthesized and systematically characterized two novel graphene-based nanomaterials, a chemically reduced graphene oxide (GO) sponge and a microwave-exfoliated GO. Textural properties were determined ...
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Article
Thermal and chemical stability of hexagonal boron nitride (h-BN) nanoplatelets
(2015)High-temperature properties of boron nitride platelets (200-800 nm in width and 30-50 nm in thickness) were systematically evaluated through thermogravimetric analysis (TGA) in combination with differential scanning ...
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Article
Short communication: Few-layer graphene-like flakes derived by plasma treatment: A potential material for hydrogen adsorption and storage
(2016)A novel, one-step, wet-free, environmental friendly and high-yield method for producing few-layer graphene powders with large surface areas (up to 800 m2/g) and narrow nanopore sizes (0.7–0.8 nm) using plasma-induced ...
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Article
Nanoporous activated carbon cloth as a versatile material for hydrogen adsorption, selective gas separation and electrochemical energy storage
(2017)The efficient storage of energy combined with a minimum carbon footprint is still considered one of the major challenges towards the transition to a progressive, sustainable and environmental friendly society on a global ...
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Article
Correlations of synthetic, spectroscopic, structural, and speciation studies in the biologically relevant Cobalt(II) - Citrate system: The tale of the first aqueous dinuclear Cobalt(II) - Citrate complex
(2003)Synthetic efforts targeting soluble species of Co(II) with the low molecular mass physiological ligand citric acid led to the isolation of the first dinuclear complex [Co2(C6H5O7)2 (H2O)4]2-, at pH ∼5, in the form of its ...
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Article
Few-layer graphene-like flakes derived by plasma treatment: A potential material for hydrogen adsorption and storage
(2016)A novel, one-step, wet-free, environmental friendly and high-yield method for producing few-layer graphene powders with large surface areas (up to 800 m2/g) and narrow nanopore sizes (0.7-0.8 nm) using plasma-induced ...
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Article
Nanoporous spongy graphene: Potential applications for hydrogen adsorption and selective gas separation
(2015)In the present work, a nanoporous (pore width 0.7nm) graphene-based sponge-like material with large surface area ( 350m2/g) was synthesized by wet chemical reduction of graphene oxide in combination with freeze-drying. ...
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Article
Rapid communication: Thermal and chemical stability of hexagonal boron nitride (h-BN) nanoplatelets
(2015)High-temperature properties of boron nitride platelets (200–800 nm in width and 30–50 nm in thickness) were systematically evaluated through thermogravimetric analysis (TGA) in combination with differential scanning ...