Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Filip Iliev"'
Autor:
Patrick Turner, Sohrab Samadian, Victor Plessky, R. B. Hammond, Jie Zou, Ventsislav Yantchev, Filip Iliev
Publikováno v:
IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control. 67:374-386
This study lays a foundation for the design of the SH0 plate acoustic wave (PAW) resonators based on LiNbO3 plate, and are applicable to the ultra-wideband filters and next-generation tunable filters. The coupling coefficient ( $k^{2}$ ) of SH0 mode
Autor:
Diana Evstafeva, Filip Ilievski, Yinyin Bao, Zhi Luo, Boris Abramovic, Sunghyun Kang, Christian Steuer, Elita Montanari, Tommaso Casalini, Dunja Simicic, Dario Sessa, Stefanita-Octavian Mitrea, Katarzyna Pierzchala, Cristina Cudalbu, Chelsie E. Armbruster, Jean-Christophe Leroux
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-17 (2024)
Abstract Hepatic encephalopathy is a neuropsychiatric complication of liver disease which is partly associated with elevated ammonemia. Urea hydrolysis by urease-producing bacteria in the colon is often mentioned as one of the main routes of ammonia
Externí odkaz:
https://doaj.org/article/0763ec364373410299c94f55dd5b745c
Autor:
Filip Iliev, Violeta Cvetkoska
Publikováno v:
Business Systems Research, Vol 8, Iss 1, Pp 92-112 (2017)
Business Systems Research : International journal of the Society for Advancing Innovation and Research in Economy
Volume 8
Issue 1
Business Systems Research : International journal of the Society for Advancing Innovation and Research in Economy
Volume 8
Issue 1
Background: Choosing the most suitable candidate for the position of salesperson is indeed a complex task for managers because several criteria important for the position should be taken into consideration. Such a choice should be considered as a mul
Autor:
Jie, Zou, Ventsislav, Yantchev, Filip, Iliev, Victor, Plessky, Sohrab, Samadian, Robert B, Hammond, Patrick J, Turner
Publikováno v:
IEEE transactions on ultrasonics, ferroelectrics, and frequency control. 67(2)
This study lays a foundation for the design of the SH
Autor:
S. Samadian, Jie Zou, Patrick Turner, Filip Iliev, Ventsislav Yantchev, Victor Plessky, T. Thorvaldsson, Neal Fenzi, R. B. Hammond
Publikováno v:
2019 Joint Conference of the IEEE International Frequency Control Symposium and European Frequency and Time Forum (EFTF/IFC).
This study lays a foundation for the design of the SH 0 Plate acoustic wave (PAW) resonator based on LiNbO 3 plate applicable to the ultra-wide-band filters and next-generation tunable filters. The coupling coefficient (k2) of SH 0 mode is optimized
Autor:
Ventsislav Yantchev, Victor Plessky, R. B. Hammond, Neal Fenzi, S. Samadian, Jie Zou, Patrick Turner, Filip Iliev
Publikováno v:
2018 IEEE International Ultrasonics Symposium (IUS).
By bonding the sub-wavelength-thick LN layer of rotated Y-cut to a high-velocity substrate, such as Si, the quasi-SH mode no longer couples with the bulk modes in substrate and the leaky component is effectively eliminated. As the propagation loss is
Publikováno v:
2018 IEEE International Frequency Control Symposium (IFCS).
The “hiccup” SAW resonator design is revisited. It is demonstrated using fast-FEM simulations that high-quality factors can be achieved even on leaky wave substrates by replacing the characteristic half period gap with a distributed gap. The hicc
Autor:
Julius Koskela, Bob Hammond, P. Maniadis, Balam A. Willemsen, Victor Plessky, Patrick Turner, Neal Fenzi, Filip Iliev
Publikováno v:
2017 IEEE International Ultrasonics Symposium (IUS).
The SAW on rotated “leaky” Y-cuts LiTaO3 and LiNbO3 is a dominantly localized near surface slow shear-horizontal wave, which is weakly coupled to the fast shear bulk wave. Any surface perturbation can lead to radiation of bulk-acoustic waves from
Autor:
P. Maniadis, Balam A. Willemsen, Filip Iliev, Neal Fenzi, Bob Hammond, Patrick Turner, Julius Koskela, Victor Plessky
Publikováno v:
2017 IEEE International Ultrasonics Symposium (IUS).
Autor:
Ventsislav Yantchev, Patrick Turner, K.-W. Lee, C. H. Lee, S. McHugh, Filip Iliev, Takahiro Sato
Publikováno v:
2017 IEEE International Ultrasonics Symposium (IUS).
Recent trends in cellular handsets demand SAW resonators with increased performance. Most importantly, improvements in both the resonators' quality factor (Q) and temperature coefficient of frequency (TCF) are needed. The TC-SAW concept employing bur