Τμήμα Μηχανικών Μηχανολογίας και Κατασκευαστικής / Department of Mechanical and Manufacturing Engineering: Recent submissions
Now showing items 201-220 of 1036
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Article
The nitridation of ZnO nanowires
(2012)ZnO nanowires (NWs) with diameters of 50 to 250 nm and lengths of several micrometres have been grown by reactive vapour transport via the reaction of Zn with oxygen on 1 nm Au/Si(001) at 550°C under an inert flow of Ar. ...
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Article
Zn3N2nanowires: Growth, properties and oxidation
(2013)Zinc nitride (Zn3N2) nanowires (NWs) with diameters of 50 to 100 nm and a cubic crystal structure have been grown on 1 nm Au/Al2O3via the reaction of Zn with NH3including H2between 500°C and 600°C. These exhibited an optical ...
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Article
Surface passivation and conversion of SnO2 to SnS2 nanowires
(2015)SnO2 nanowires have been grown on Si(0 0 1) via the vapour-liquid-solid mechanism at 800 °C and then exposed to H2S between 300 and 600 °C. The SnS2/SnO2 nanowires obtained at 300 °C consist of tetragonal rutile SnO2 and ...
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Article
Broad compositional tunability of indium tin oxide nanowires grown by the vapor-liquid-solid mechanism
(2014)Indium tin oxide nanowires were grown by the reaction of In and Sn with O2 at800 °C via the vapor-liquid-solid mechanism on 1 nm Au/Si(001). We obtain Sn doped In2O3 nanowires having a cubic bixbyite crystal structure by ...
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Article
Electronic structure of piezoelectric double-barrier InAs/InP/InAs/InP/InAs (111) nanowires
(2004)The numerical self-consistent solution of the Poisson-Schrodinger equations in cylindrical coordinates for calculating electronic states in the effective mass approximation was implemented. High accuracy and rapid convergence ...
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Article
Properties of the ubiquitous p-n junction in semiconductor nanowires
(2008)The properties of nanowires with built-in p-n junctions such as the energetic position of the one-dimensional sub-bands, charge distributions and band bending in equilibrium are determined by the self-consistent solution ...
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Article
Delta(δ)-doping of semiconductor nanowires
(2013)The electronic sub-band structure of single δ-layers in GaAs nanowires have been determined via the self-consistent solution of the Poisson-Schrödinger equations in the effective mass approximation. The spread and sheet ...
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Article
Properties and tailoring of the ubiquitous core-shell p-n junction in semiconductor nanowires by δ-doping
(2013)The properties of the core-shell p-n junction in GaAs nanowires have been investigated via the self-consistent solution of the Poisson-Schrödinger equations in cylindrical coordinates and the effective mass approximation ...
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Article
Investigation of spin-polarized resonant tunneling through double-barrier magnetic tunnel junctions by self-consistent solution of the Poisson-Schrödinger equations
(2003)The article discusses the investigation of spin-polarized resonant tunneling through double barrier magnetic tunnel junctions (DBMTJ) by the self-consistent solution of Poissons and Schrödingers equations using transfer ...
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Synthesis of hybrid polymethacrylate-noble metal (M = Au, Pd) nanoparticles for the growth of metal-oxide semiconductor nanowires
(2012)Metal-oxide semiconductor nanowires (NWs) such as ZnO, β-Ga 2O 3 and SnO 2 with diameters of tens of nanometres and lengths of many micrometres have been grown using micellar nanohybrids consisting of methacrylate-based ...
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Article
Light-induced mobility enhancement in delta-doped GaAs/In0.26Ga0.74As/GaAs quantum wells grown by molecular beam epitaxy on GaAs(001)
(1999)Persistent photoconductivity in 80 angstroms strained GaAs/In0.26Ga0.74As/GaAs quantum wells was investigated by measuring the Shubnikov de Haas and Hall effects at 4.2 K. The quantum wells were grown by molecular beam ...
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Article
Surface micro-roughness and transport properties of Si delta-doped GaAs/InxGa1-xAs/GaAs (0.1≤x≤0.25) quantum wells grown by molecular-beam epitaxy on GaAs (001) and GaAs (111)B
(1999)We investigated the surface quality and electron transport properties of 200 Å GaAs/InxGa1-xAs/GaAs, 0.1≤x≤0.25, quantum well structures grown by molecular-beam epitaxy on GaAs (001) and (111)B, center delta-doped with Si ...
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Article
Magnetotransport of delta-doped In0.57Ga0.43As on InP(001) grown between 390 and 575°C by molecular beam epitaxy
(1998)Silicon (Si) delta- (δ-) doped In0.53Ga0.47As layers were grown by molecular beam epitaxy on InP(001) substrates between 390°C and 575°C. Subbands formed at the δ layer were examined with Hall and Shubnikov-de Haas effect ...
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Article
Minimally actuated four-bar linkages for upper limb rehabilitation
(2018)In the previous years the scientific community dealt extensively with designing, developing and testing robot-based rehabilitation systems. Besides the benefits that resulted for disabled people, this twenty-year endeavor ...
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Conference Object
Upper limb assessment of people with multiple sclerosis with the use of a haptic nine hole peg-board test
(Affiliation: Department of Mechanical and Manufacturing Engineering, University of Cyprus, CyprusCorrespondence Address: Xydas, E. G.Department of Mechanical and Manufacturing Engineering, University of CyprusCyprus, 2009)In this work, a nine-hole peg-board test (NHPT) arrangement is implemented in a Virtual Environment with the use of a Haptic Interface that has the form of a small robotic arm. The Haptic NHPT is used as a mean for ...
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Conference Object
Identification of kinematic traits in 3D reaching Tasks with the use of a haptic Nine-Hole Peg-Board Test: Comparison between healthy people and people with Multiple Sclerosis
(Affiliation: Mechanical and Manufacturing Engineering Department, University of Cyprus, P.O. Box: 20537, Nicosia, CyprusAffiliation: Mechanical and Manufacturing Engineering Department, University of Cyprus, CyprusCorrespondence Address: Xydas, E. G.Mechanical and Manufacturing Engineering Department, University of Cyprus, P.O. Box: 20537, Nicosia, Cyprusemail: mep4ex01@ucy.ac.cy, 2008)Multiple Sclerosis (MS) is a complex neurological disease that destroys the myelin sheath of the nerves, consequently affecting the motor control ability of the person in numerous ways. Rehabilitation of the upper limb ...
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Conference Object
Upper limb motion profile during small to medium time-limited reaching tasks in A VR based robotic training environment
(Affiliation: University of Cyprus, Department of Mechanical and Manufacturing Engineering, 75 Kallipoleos Street, Nicosia 1678, CyprusCorrespondence Address: Xydas, E. G.University of Cyprus, Department of Mechanical and Manufacturing Engineering, 75 Kallipoleos Street, Nicosia 1678, Cyprusemail: mep4ex1@ucy.ac.cy, 2008)In the area of rehabilitation robotics, many researchers have investigated the therapeutic effects of forces that are proportional to the difference of the user's hand trajectory with an optimum trajectory that is usually ...
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Article
Robotic rehabilitation of people with multiple sclerosis with the use of a haptic nine-hole pegboard test
(2012)Multiple Sclerosis (MS) is a complex neurological disease that destroys the myelin sheath of the nerves, consequently affecting the motor control ability in numerous ways. It has been shown that people with MS have the ...
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Conference Object
Analysis and passive control of a four-bar linkage for the rehabilitation of upper-limb motion
(American Society of Mechanical Engineers, 2015)In the last two decades robotic rehabilitation research provided significant insight regarding the human-robot interaction, helped understand the process by which the impaired nervous system is retrained to better control ...
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Conference Object
Design and development of a haptic peg-board exercise for the rehabilitation of people with multiple sclerosis
(Affiliation: Mechanical and Manufacturing Engineering Department, University of Cyprus, P.O. Box: 20537, Nicosia, CyprusAffiliation: Mechanical and Manufacturing Engineering Department, University of CyprusCorrespondence Address: Xydas, E. G.Mechanical and Manufacturing Engineering Department, University of Cyprus, P.O. Box: 20537, Nicosia, Cyprusemail: mep4ex01@ucy.ac.cy, 2007)Peg-in-Hole methods, like the Nine Hole Peg-Board Test (NHPT) and the Perdue board are widely employed for the functional assessment and therapy of the upper limbs of people with Multiple Sclerosis (MS). Such passive devices ...