Zobrazeno 1 - 10
of 48
pro vyhledávání: '"Yong-Hyun Baek"'
Autor:
Sung Jin Kim, Seong Mok Jeong, Chang Hee Lee, Jin-Young Yoon, Sung Eun Shim, Jeong Hyon Kim, Bon Hyuk Goo, Yeon Cheol Park, Yong-Hyun Baek, Sang Soo Nam, Byung-Kwan Seo
Publikováno v:
Journal of Acupuncture Research, Vol 35, Iss 4, Pp 158-168 (2018)
The purpose of this study was to review clinical studies of lumbar herniated intervertebral disc (LHIVD) treatment using acupuncture. Online database (PubMed, COCHRANE Library, EMBASE, CNKI, KISS, NDSL, KoreaMed, KMbase, OASIS, and KISTI) searches we
Externí odkaz:
https://doaj.org/article/4b1c17651fe747c991c434eda4671d08
Autor:
Matthew S. Wong, Nathan C. Palmquist, Jiaxiang Jiang, Philip Chan, Changmin Lee, Panpan Li, Ji Hun Kang, Yong Hyun Baek, Chae Hon Kim, Daniel A. Cohen, Tal Margalith, James S. Speck, Shuji Nakamura, Steven P. DenBaars
Publikováno v:
Applied Physics Letters. 119:239901
Autor:
Daniel A. Cohen, Jiaxiang Jiang, Nathan Palmquist, James S. Speck, Panpan Li, Shuji Nakamura, Chae Hon Kim, Yong Hyun Baek, Matthew S. Wong, Tal Margalith, Philip Chan, Ji Hun Kang, Changmin Lee, Steven P. DenBaars
Publikováno v:
Applied Physics Letters. 119:202102
The optical and electrical characteristics of InGaN blue and green micro-light-emitting diodes (μLEDs) with GaN tunnel junction (TJ) contacts grown by metalorganic chemical vapor deposition (MOCVD) were compared at different activation temperatures
Autor:
Michael J. Gordon, Yong Hyun Baek, Matthew S. Wong, Jordan M. Smith, Ji Hun Kang, Steven P. DenBaars, James S. Speck, Chae Hon Kim, Shuji Nakamura, Ryan Ley
Publikováno v:
Applied Physics Letters. 116:071102
There is growing interest in microLED devices with lateral dimensions between 1 and 10 μm. However, reductions in external quantum efficiency (EQE) due to increased nonradiative recombination at the surface become an issue at these sizes. Previous a
Publikováno v:
Journal of Korea Foundry Society. 34:107-111
Permeability is the ability of a material to transmit fluid/gases. It is an important material property and it depends on mould parameters such as grain fineness number, clay, moisture, mulling time, and hardness. Modeling the relationships among the
Autor:
Yeon-Sik Chae, Min Han, Jin-Koo Rhee, Sang-Jin Lee, Jin-Ho Kim, Joo-Ho Jung, Hyun-Chang Park, Hoang Nguyen Van, Tuan Hoang Anh, Young-Wook Park, Yong-Hyun Baek
Publikováno v:
Microwave and Optical Technology Letters. 53:2298-2302
Using a coplanar waveguide (CPW) feed with a short-circuiting stub, the fed circular slot antenna for W-band operation is presented.The obtained results show that the impedance bandwidth, which is determined by 10 dB return-loss of the proposed slot
Autor:
Min Han, Jae-Hyun Choi, Dong-Sik Ko, Jin-Koo Rhee, Tae-Jong Baek, Sang-Jin Lee, Yong-Hyun Baek, Wan-Joo Kim, Seok-Gyu Choi
Publikováno v:
IEEE Sensors Journal. 11:370-376
In this study, we fabricated a 94-GHz transceiver module for a millimeter-wave (MMW) frequency modulation continuous wave (FMCW) radar sensor. The transceiver modules consist of a waveguide voltage-controlled oscillator (VCO) and Rx module using a si
Autor:
Byoung-Chul Jeon, Dong-Sik Ko, Yong-Hyun Baek, Tae-Jong Baek, Jin-Koo Rhee, Min Han, Seok-Gyu Choi, Sang-Jin Lee
Publikováno v:
Microelectronics Journal. 41:627-631
In this paper, a 94GHz microwave monolithic integrated circuit (MMIC) single balanced resistive mixer affording high LO-to-RF isolation was designed without an IF balun. The single balanced resistive mixer, which does not require an external IF balun
Autor:
Sang-Jin Lee, Byoung-Chul Jeon, Sung-Woon Mun, Jin-Koo Rhee, Dong-Sik Ko, Jae-Hyun Choi, Yong-Hyun Baek, Wan-Joo Kim, Tae-Jong Baek, Nam-Jae Lee
Publikováno v:
Microwave and Optical Technology Letters. 52:2618-2621
In this article, we fabricated a 94 GHz monolithic down-converter that consists of a two-stage amplifier and a single-balanced mixer using the 0.1-μm metamorphic high electron mobility transistor (MHEMT) technology. The down-converter of a 3.3 × 2.
Publikováno v:
Microwave and Optical Technology Letters. 51:2396-2400
A high-performance 94 GHz planar Quasi-Yagi antenna on a GaAs substrate is presented. The antenna is fabricated on a 100 μm GaAs wafer and has dimension of 1.6 × 2.6 mm2. Experimental results show that this antenna covers a wide bandwidth from 91 G