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pro vyhledávání: '"Dooyoung Hah"'
Autor:
Dooyoung Hah
Publikováno v:
Journal of Photonics for Energy; Jan2024, Vol. 14 Issue 1, p1-11, 11p
Autor:
Dooyoung Hah
Publikováno v:
Microsystem Technologies. 29:311-320
Autor:
Dooyoung Hah
Publikováno v:
Journal of Photonics for Energy. 12
Publikováno v:
Sensors and Actuators A: Physical. 355:114316
Autor:
Dooyoung Hah
© 2019, Springer-Verlag GmbH Germany, part of Springer Nature.A variable capacitor is one of the widely used components in radio frequency (RF) circuits. Variable capacitors can benefit from the microelectromechanical systems (MEMS) technology, to b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d3c26d99ee5881342c59d138dcc0b2b9
https://avesis.kayseri.edu.tr/publication/details/283fc720-41fc-42c1-8ae8-ab9bbde02a39/oai
https://avesis.kayseri.edu.tr/publication/details/283fc720-41fc-42c1-8ae8-ab9bbde02a39/oai
Autor:
Dooyoung Hah
Publikováno v:
Journal of Intelligent Material Systems and Structures. :1045389X2311512
Recently, vibration energy harvesting devices have gained growing interests. One of the main requirements for them is a broad bandwidth owing to stochastic spectral characteristics of the general vibration sources. Among various approaches for wide b
Autor:
Dooyoung Hah
© 2022 Taylor & Francis Group, LLC.Piezoelectric actuation has been one of the frequent choices for optical micro scanning. In most of the cases, lead zirconate titanate (PZT) has been used as the piezoelectric material. However, PZT has a potential
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bab7485aa2d951c7058f2907a252fc78
https://avesis.kayseri.edu.tr/publication/details/7571e936-88e6-4acd-b7e4-3877a901933e/oai
https://avesis.kayseri.edu.tr/publication/details/7571e936-88e6-4acd-b7e4-3877a901933e/oai
Autor:
Dooyoung Hah
Publikováno v:
2021 Symposium on Design, Test, Integration & Packaging of MEMS and MOEMS (DTIP).
Energy harvesting devices have been gaining increasing interests, especially in the areas of internet of things (IoTs) and sensor networks. Due to the broadband and random nature of typical vibration energy sources available in the environment, signi
Autor:
Dooyoung Hah
Publikováno v:
2021 Symposium on Design, Test, Integration & Packaging of MEMS and MOEMS (DTIP).
Aluminum nitride (AlN) started to draw attentions as a material for piezoelectric actuation owing to its CMOS process compatibility and safeness for biomedical applications. Due to its relatively low piezoelectric coefficients, AlN-based piezoelectri
Autor:
Dooyoung Hah
Publikováno v:
Applied optics. 59(2)
A design method is proposed for variable optical attenuators (VOAs), aiming at linear attenuation–voltage characteristics, and verified by finite element analysis. Devices of interest are planar VOAs based on microelectromechanical systems technolo