Zobrazeno 1 - 10
of 49
pro vyhledávání: '"A.S. DeReggi"'
Publikováno v:
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control. 47:1321-1335
This paper describes the development of PVDF hydrophones for characterizing medical ultrasound fields. The polymer hydrophone approaches that have resulted from this work are discussed, with emphasis given to the spot-poled membrane design that has b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2ddc806179bda455898aa71c4e65aaea
https://doi.org/10.1109/58.883521
https://doi.org/10.1109/58.883521
Publikováno v:
1999 Annual Report Conference on Electrical Insulation and Dielectric Phenomena (Cat. No.99CH36319).
The structure and polarization of the vinylidene fluoride-trifluoroethylene copolymer (50/50 mass ratio), a composition in the range that was first reported to show giant electrostriction after electron irradiation, has been studied by neutron scatte
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0fe2af63f65891a045349f6dc428fb59
https://doi.org/10.1109/ceidp.1999.804603
https://doi.org/10.1109/ceidp.1999.804603
Publikováno v:
[Proceedings] 1992 Annual Report: Conference on Electrical Insulation and Dielectric Phenomena.
Measurements of the polarization distribution produced in PVC (polyvinyl chloride) by electron-beam irradiation shows that the bimorphic, radiation-induced polarization is very long lived. Measurements on the poling temperature dependence have establ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::36e094f4cf9a87f30db1f3a142fc69e9
https://doi.org/10.1109/ceidp.1992.283188
https://doi.org/10.1109/ceidp.1992.283188
Publikováno v:
Proceedings of IEEE Conference on Electrical Insulation and Dielectric Phenomena - (CEIDP '93).
The authors report measurements of injected charge and polarization in ethylene-propylene copolymer (EPDM) with and without alumina filter using the thermal pulse method, following the application of high voltage. It is found that homocharge injectio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e6e353334571a2d6532c3777282e12e2
https://doi.org/10.1109/ceidp.1993.378970
https://doi.org/10.1109/ceidp.1993.378970
Autor:
A.S. DeReggi, J.A. Giacometti
Publikováno v:
Proceedings of IEEE Conference on Electrical Insulation and Dielectric Phenomena - (CEIDP'94).
Polar amorphous polymers available in sheets are readily made into planar capacitors with parallel thin film electrodes on opposite surfaces. They may be poled in this form using a process called thermopoling where a specimen is heated to a temperatu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::68b54481b2cc9404aeb5fc912de9854f
https://doi.org/10.1109/ceidp.1994.591756
https://doi.org/10.1109/ceidp.1994.591756
Autor:
A.S. DeReggi
Publikováno v:
Proceedings of 1995 Conference on Electrical Insulation and Dielectric Phenomena.
A first laser-induced thermal pulse study of electroded SIMOX structures is reported with the goal of characterizing the space-charge buildup in the 400 nm thick, insulating SiO/sub 2/ layer, separating a 150 nm thick device layer from the integral 5
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5a88172267ef2fbbedc66037e9e4e86a
https://doi.org/10.1109/ceidp.1995.483572
https://doi.org/10.1109/ceidp.1995.483572
Autor:
A.S. DeReggi, Siegfried Bauer
Publikováno v:
Proceedings of 1995 Conference on Electrical Insulation and Dielectric Phenomena.
A simple method of measuring the thermal diffusivity of dielectric films on thermally highly conducting substrates is proposed and demonstrated. It is an adaptation of the thermal pulse method of measuring charge and polarization profiles. The diffus
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::56f216552067ee10c88c7c294a400483
https://doi.org/10.1109/ceidp.1995.483781
https://doi.org/10.1109/ceidp.1995.483781
Publikováno v:
2000 Annual Report Conference on Electrical Insulation and Dielectric Phenomena (Cat. No.00CH37132).
We are investigating the physical mechanism behind the large electrostriction in the electron-irradiated copolymer of vinylidene fluoride and trifluoroethylene (mass ratio 1/1). We report on a time-resolved measurement of the thickness change that fo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6b232c40464802e3440bb7a0580f445c
https://doi.org/10.1109/ceidp.2000.885259
https://doi.org/10.1109/ceidp.2000.885259
Publikováno v:
Journal of Magnetic Resonance (1969). 6:261-264
The temperature dependence of the intramolecular dipolar splitting of the nuclear quadrupole resonance of 14N has been studied in solid αnitrogen from 4.2 to 35.6°K by observing the modulation of the envelope of the spin echoes. Over this temperatu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::beb9a73b69888f19bff09b93e5a3983f
https://doi.org/10.1016/0022-2364(72)90098-4
https://doi.org/10.1016/0022-2364(72)90098-4
Publikováno v:
Journal of Magnetic Resonance (1969). 1:144-168
A detailed spin-echo study combining NQR and NMR has been made of the solid phases α and β and the liquid phase of high-purity nitrogen. In f.c.c. α - N2 the quadrupole coupling constant e2qQ, the spin-lattice relaxation time T1, the spin-spin rel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d363ff000b98d0ad5fdb0933ed30346e
https://doi.org/10.1016/0022-2364(69)90015-8
https://doi.org/10.1016/0022-2364(69)90015-8