Zobrazeno 1 - 10
of 41
pro vyhledávání: '"Jabeom Koo"'
Publikováno v:
Energies, Vol 15, Iss 4, p 1394 (2022)
Intelligent building systems require a data-rich environment. Virtual sensors can provide informative and reliable sensing environments for operational datasets in building systems. In particular, backup virtual sensors that are in situ are beneficia
Externí odkaz:
https://doaj.org/article/8fe1c1abe89846c3bf7acd3b8d83449f
Publikováno v:
Energies, Vol 15, Iss 4, p 1386 (2022)
The stack effect is dominant in multifamily high-rise buildings (MFHRBs) in winter because of the considerable height of MFHRBs, which causes a difference in the infiltration amount between floors. This difference causes a heating load difference bet
Externí odkaz:
https://doaj.org/article/8a0794ad66074ebdbb895e1049e9781e
Publikováno v:
Energies, Vol 13, Iss 22, p 6013 (2020)
District heating (DH) is an energy efficient building heating system that entails low primary energy consumption and reduced environmental impact. The estimation of the required heating load provides information for operators to control district heat
Externí odkaz:
https://doaj.org/article/3665086d0f4c47b49b0cb6df4aaf8feb
Publikováno v:
Journal of Electrical and Computer Engineering, Vol 2018 (2018)
We present an oven-controlled FBAR oscillator that achieves a frequency stability of +/-1.55ppm from -5°C to 85°C. The highly integrated system includes a 0.64mm2 FBAR chip with integrated heater and sensor resistors and a 3 mm2 CMOS chip with the
Externí odkaz:
https://doaj.org/article/5c7cd094bc0747deae1fefa1018f1b77
Autor:
Jabeom Koo, Sungmin Yoon
Publikováno v:
SSRN Electronic Journal.
Publikováno v:
Journal of Building Engineering. 69:106225
Autor:
Carlos Nieva, Zinia Tuli, Mario Weiss, Dimitri Frolov, Surej Ravikumar, Said Rami, Henning Braunisch, Hariprasad Chandrakumar, Vijaya B. Neeli, Iwen Huang, Jessica C. Chou, Yi-Shin Yeh, Neelam Prabhu Gaunkar, Telesphor Kamgaing, Triveni S. Rane, D. Correas-Serrano, Thomas W. Brown, Jeffery W. Bates, Georgios C. Dogiamis, Mauricio Marulanda, Jag Rangaswamy, Jabeom Koo, Qiang Yu, Ye Seul Nam
Publikováno v:
IEEE Solid-State Circuits Letters. 4:206-209
This letter presents a 134-GHz superheterodyne transceiver system in 22-nm CMOS for dielectric waveguides measured at reaches up to 3 m. Greater than 12 GHz of RF bandwidth and 16 QAM signaling combine to achieve 50 Gb/s with a measured EVM of −19.
Autor:
Jabeom Koo, Sungmin Yoon
Publikováno v:
Applied Energy. 325:119864
Publikováno v:
IEEE Transactions on Circuits and Systems II: Express Briefs. 66:542-546
The oscillator architecture is proposed to reduce the close-in phase noise as well as power consumption. The proposed Colpitts oscillator removes the current source which is the main source of the 1/ $f$ noise conversion. The removal of the current s