Zbigniew Moroń, Tomasz Grysiński
Measurement of electrical conductivity of liquids (electrolytic conductivity), despite of its apparent easiness, can cause serious problems – especially when is performed in conditions different from those defined by the manufacturer of the conductivity meter applied or when an instrument of own design is used. The purpose of this paper is to present the most substantial and most frequent problems that may occur in such measurements and how to master them. Effective remedial measures were indicated.
XXI IMEKO World Congress
· TC13
· 2015
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K. Yaghmaei, G. Bas, N.M. Durakbasa
In this study, a classical molecular dynamics (MD) simulation of the stress-strain properties of the nanocomposite made from HAP and a single-walled carbon nanotube and a double-walled carbon nanotube is presented to validate the experimentally measured mechanical properties of hydroxyapatite (HAP)-based composites via computational modeling techniques. The Young modulus and the yield points of both pure and nanotube-reinforced HAP are determined and the results are exploited in HAP-based bioceramics for use of medical nanotechnology as bone-replacing tissue engineering.
XXI IMEKO World Congress
· TC13
· 2015
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Giampaolo E. D’Errico
Receiver operating characteristic (ROC) methodology is finalized to modelling and implementation of an adaptive detection process with application to cellular micrographs. Numerical examples are elaborated to illustrate how the performance of a cell recognition task can be modulated according as a 4-point rating scale of process dependability.
XXI IMEKO World Congress
· TC13
· 2015
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Leopoldo Angrisani, Guido d’Alessandro, Mauro D’Arco
A transcutaneous wireless energy transmission system exploiting resonant inductive coupling to recharge the battery of a pacemaker is proposed. Pacemakers are electronic biomedical devices necessary for the treatment of specific cardiovascular diseases. Energy provision required by the pacemaker to operate is usually granted by means of long lasting batteries, that anyway require periodical checks and substitution. Wireless energy transfer to medical implants is therefore desirable, since it offers a non-invasive way to recharge batteries of implanted devices, viz. it could allow to delay...
XXI IMEKO World Congress
· TC13
· 2015
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Maria Laura D’Angelo, Ferdinando Cannella, Mariacarla Memeo, Mariapaola D’Imperio, Matteo Bianchi
The fingertip deformation represents the basic mechanical action that shapes human haptic perception. In this work, we present an experimental set up to provide, as proof of the concept, a characterization of human fingertip mechanical properties, in terms of contact area and pressure distribution. Such measures are then correlated with the output of a 3D Finite Element (FE) Model of fingertip developed in order to validate our numerical approach for further investigations.
XXI IMEKO World Congress
· TC13
· 2015
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Alejandro M. Rivero, Elisabeth Costa Monteiro, Daniel S. Leite, Frederico S. Tannenbaum, Miguel A. G. Pinto, Karla Figueiredo
The Quality by Design (QbD) concept has been successfully used in the pharmaceutical industry since 2004. This work introduces the first steps for the implementation of QbD in the medical device field and incorporates metrological concerns to the quality approach, determining the Target Product Profile, Critical Quality Attributes and Critical Process Parameters for a robotic assistive technology development intended to help locomotion of elderly people.
XXI IMEKO World Congress
· TC13
· 2015
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Hidayat Wiriadinata, Iip Ahmad Rifai, Aditya Achmadi, Arfan Sindhu Tistomo
The realization of ITS-90 has been done at Metrology-LIPI using the radiation thermometer monochromatic KE LP4 80-59 over a temperature range 232 - 962 ° C and wavelength λ = 1.57 µm. The method used is Sakuma-Hattori method using fixed-point blackbody tin, aluminum and silver. The value of the uncertainty of the KE LP4 80-59 at the temperature range for the level of confidence of 95% and a coverage factor of k = 2, is expressed by the equation: U ( t ) = 1.067461375 - 0,008000541 · t + 2,586471 · 10 -5 · t 2 -3,33928 · 10 -8 · t 3 + 1,497270 · 10 -12 · t 4 .
XXI IMEKO World Congress
· TC12
· 2015
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Michele Scervini
In this work the drift of type K and type N MIMS thermocouples has been studied as a function of the thermocouple outer diameter in the temperature range 1000 - 1300°C. It is shown that type K and type N MIMS thermocouples drift significantly above 1000°C, the drift being more pronounced for smaller diameters. The data presented in this paper allows to compare the performance of type K and type N thermocouples at high temperatures over a wide temperature range and at different diameters.
XXI IMEKO World Congress
· TC12
· 2015
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Pavel Psota, Roman Doleček, Vít Lédl, Petr Vojtíšek, Tomáš Vít, Ondřej Matoušek
A digital holographic method for 3-D measurement of temperature distribution is introduced in this paper. It is based on digital holographic tomography employing only one digital camera. The method is applied for measurement of steady naturally convective flow of fluid and as well as for fast dynamic flow in the form of pulsatile jets of fluid.
XXI IMEKO World Congress
· TC12
· 2015
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Peter Pavlasek, Stanislav Ďuriš, Rudolf Palencar
The importance of precise measurements of various quantities is undeniable, as their values effect many processes in industry and other fields. One of the important quantities measured, that effects a majority of processes is undoubtedly temperature. The following work is focused on selected factors that affects the precision of thermoelectric sensors from noble and base metals. All of the results are put into context with the factors that affect the measurement capabilities of thermocouples.
XXI IMEKO World Congress
· TC12
· 2015
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