Results 21 to 30 of about 2,527 (40)

Dose dependence of ferromagnetism in Co-implanted ZnO [PDF]

open access: yesJ. Appl. Phys. 105, 043907 (2009), 2008
We have studied the structural, magnetic and electronic properties of Co-implanted ZnO (0001) films grown on Al2O3 (1120) substrates for different implantation doses and over a wide temperature range. Strong room temperature ferromagnetism is observed with magnetic parameters depending on the cobalt implantation dose.
arxiv   +1 more source

Avaliação in vitro da infiltração bacteriana na vedação de diferentes sistemas de implantes dentários [PDF]

open access: yes, 2010
Resumo: O objetivo deste estudo foi investigar in vitro a capacidade de infiltracao bacteriana atraves da interface implante/conector protetico em sistemas de implantes dentarios de conformacao hexagonal.
Zardo, Eduardo Luis
core   +1 more source

Deep level transient spectroscopy study for the development of ion-implanted silicon field-effect transistors for spin-dependent transport [PDF]

open access: yesThin Solid Films 518 (2010) 2524-2527, 2010
A deep level transient spectroscopy (DLTS) study of defects created by low-fluence, low-energy ion implantation for development of ion-implanted silicon field-effect transistors for spin-dependent transport experiments is presented. Standard annealing strategies are considered to activate the implanted dopants and repair the implantation damage in ...
arxiv   +1 more source

Calculation of the substitutional fraction of ion-implanted He in an Fe target [PDF]

open access: yesJournal of Nuclear Materials 414, 426 (2011), 2010
Ion-implantation is a useful technique to study irradiation damage in nuclear materials. To study He effects in nuclear fusion conditions, He is co-implanted with damage ions to reproduce the correct He/dpa ratios in the desired or available depth range.
arxiv   +1 more source

An Automated Size Recognition Technique for Acetabular Implant in Total Hip Replacement [PDF]

open access: yesInternational Journal of Computer Science & Information Technology (IJCSIT), Vol 3, No 2, April 2011, 2011
Preoperative templating in Total Hip Replacement (THR) is a method to estimate the optimal size and position of the implant. Today, observational (manual) size recognition techniques are still used to find a suitable implant for the patient. Therefore, a digital and automated technique should be developed so that the implant size recognition process ...
arxiv   +1 more source

An Online Platform for Automatic Skull Defect Restoration and Cranial Implant Design [PDF]

open access: yesarXiv, 2020
We introduce a fully automatic system for cranial implant design, a common task in cranioplasty operations. The system is currently integrated in Studierfenster (http://studierfenster.tugraz.at/), an online, cloud-based medical image processing platform for medical imaging applications.
arxiv  

Características dos materiais de regeneração óssea existentes em Portugal [PDF]

open access: yes, 2014
Dissertação para obtenção do grau de Mestre no Instituto Superior de Ciências da Saúde Egas MonizA regeneração óssea é um tema atual, que traduz uma realidade resultante da evolução científica e médica associada a uma maior exigência por parte dos ...
Esteves, Tiago João Gonçalves
core  

Ultrasonic elastography for the prevention of breast implant rupture: Detection of an increase with stiffness over implantation time [PDF]

open access: yesJournal of Biomechanics, 2024, 163, pp.111955
Breast implants are widely used after breast cancer resection and must be changed regularly to avoid a rupture. To date, there are no quantitative criteria to help this decision. The mechanical evolution of the gels and membranes of the implants is still under investigated, although it can lead to early rupture. In this study, 35 breast explants having
arxiv   +1 more source

Laser driven miniature diamond implant for wireless retinal prostheses [PDF]

open access: yesAdvanced Biosystems 4.11 (2020): 2000055
The design and benchtop operation of a wireless miniature epiretinal stimulator implant is reported. The implant is optically powered and controlled using safe illumination at near-infrared wavelengths. An application-specific integrated circuit (ASIC) hosting a digital control unit is used to control the implant's electrodes. The ASIC is powered using
arxiv   +1 more source

Resonant frequency analysis of dental implants [PDF]

open access: yesMedical Engineering and Physics, Elsevier, 2019, 2019
Dental implant stability influences the decision on the determination of the duration between implant insertion and loading, This work investigates the resonant frequency analysis by means of a numerical model. The investigation is done numerically through the determination of the eigenfrequencies and performing a steady state response analyses using a
arxiv  

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