Dr. Mattey, <i>et al</i> reply

Mattey, Derek L.; Brownfield, Ann; Dawes, P. T.

doi:10.3899/jrheum.100075

Cited by 3 publications

(3 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The measurement results depend on the quality of the crystal and the process for the preparation of the sample. The measurement results for PZT M202 (427±1 μC m -2 K -1 ) are close to the datasheet value, which is 430 μC m -2 K -1 [16]. Furthermore the measurement procedure delivers the time constant of temperature change which depends on the sample as well on the measurement set-up.…”

Section: Discussionsupporting

confidence: 72%

A dynamic method for the measurement of pyroelectric properties of materials

Ghane-Motlagh

Kroener

Goldschmidtboeing

et al. 2018

Smart Mater. Struct.

View full text Add to dashboard Cite

This study introduces a novel experimental set-up to measure the pyroelectric coefficient of materials at variable frequencies of temperature change. In this method, temperature changes are periodically applied through a mechanical set-up moving the sample between a hot and cold thermal reservoir in order to measure the current obtained from the sample's pyroelectric conversion effect. For low frequencies of temperature change, an exponential equation is suggested for the temperature change in the sample based on a unidirectional heat flux through the sample. The pyroelectric coefficient can be determined from this model by fitting an exponential decay function to the pyroelectric current obtained from a single heating cycle. In comparison to other approaches for the measurement of the pyroelectric effect, the described method exhibits some advantages concerning flexibility, accuracy and simplicity, e.g. an almost deliberate adjustment of the rate of temperature change, the avoidance of electrical noise induced by continuously temperature-modulated heat stages and furnaces, a high accuracy of temperature control and the acceptance of samples made from different materials or with different sizes. The method is verified by pyroelectric coefficient measurements on a commercial PZT ceramic and on triglycine sulfate (TGS) single crystals, which have been grown by a temperature-lowering technique in our laboratory. Pyroelectric measurements were conducted at different temperature differences for samples with different thicknesses and contact areas. The measurement results for PZT M202 (427±1 μC m -2 K -1 ) are close to the datasheet value, which is 430 μC m -2 K -1 . An average pyroelectric coefficient of 306±2 μC m -2 K -1 ) is measured for the single crystal of TGS over multiple trials. The measurement results depend on the quality of the crystal and the process for the preparation of the sample. The results show internal consistency between the measurements, which are also in agreement with literature values.

show abstract

Section: Discussionsupporting

confidence: 72%

A dynamic method for the measurement of pyroelectric properties of materials

Ghane-Motlagh

Kroener

Goldschmidtboeing

et al. 2018

Smart Mater. Struct.

View full text Add to dashboard Cite

show abstract

“…My view is more closely aligned with that of Aristotle, who posited that the essence of any object or phenomenon is present in that object or phenomenon, existing in this world and not any other superior world of ideal Forms. In Book VII of his Metaphysics, Aristotle writes, "The essence of a thing is what it is said to be in virtue of itself " (Mattey 1998). But then, from an Aristotelian standpoint, could there be an essence of the correct version of a musical work when that work had never yet been correctly instantiated into the world via a flawless performance?…”

Section: The Creator's Intentionsmentioning

confidence: 99%

Untitled

2019

INSAM

View full text Add to dashboard Cite

We live in a world driven by software. Software powers and transforms the way we learn, the way we interact with each other, and the way we produce and exchange goods. Similarly, software transforms the way we create experiences and engage in art. Where this transformation has taken place in a marked degree we can talk about computational art and computational creativity.There are two ways in which we usually understand computational creativity. One way refers to attempts to construct programs that mimic human creativity. This category contains projects such as, "I fed my system with 1000 hours of jazz and Andreja Andrić, Portrait with Hands © Barbara Katzin 13 Hanan Hadžajlić (1991) is a composer, flutist and transdisciplinary researcher. She completed DMA in flute performance at the Faculty of Music Arts in Belgrade (mentor: prof. Ljubiša Jovanović, co-mentor: Dr. Vesna Mikić). Currently she is a PhD candidate in art theory -transdisciplinary studies of contemporary art and media at the Faculty of Media and Communication in Belgrade

show abstract

“…Discussion -The lack of correlation between the oxygen isotopic compositions of garnet or clinopyroxene and the modal percent of secondary phases may be taken as evidence that the measured isotopic composition of garnet and pyroxene are not artifacts of alteration processes, and are probably representative of their primary oxygen isotopic compositions. Compared to the oxygen isotopic composition of the mantle sources of mid-ocean-ridge basalts (MORB; 5.35 to 6.05%o; Ito et al, 1987) and the range measured for ultramafic mantle xenoliths (5.5±0.7%o; Mattey et al, 1994), the range for the Mir eclogite xenoliths is larger, extending to values that are slightly greater, to significantly lower than ultramafic mantle assemblages.…”

mentioning

confidence: 92%