A5100458119- Advanced MIMO Systems Optimization
- Advanced Wireless Communication Techniques
- Carbon Nanotubes in Composites
- Graphene research and applications
- Fatigue and fracture mechanics
- Cooperative Communication and Network Coding
- Silicon and Solar Cell Technologies
- Thin-Film Transistor Technologies
- Non-Destructive Testing Techniques
- Nanofabrication and Lithography Techniques
- Aluminum Alloys Composites Properties
- Inflammatory Bowel Disease
- Probabilistic and Robust Engineering Design
- Educational Curriculum and Learning Methods
- Silicon Nanostructures and Photoluminescence
- Cryptography and Residue Arithmetic
- Mechanical and Optical Resonators
- Wireless Communication Networks Research
- Nanopore and Nanochannel Transport Studies
- Gear and Bearing Dynamics Analysis
- Advanced Wireless Network Optimization
- Coding theory and cryptography
- Advancements in Photolithography Techniques
- Semiconductor materials and devices
- Embedded Systems Design Techniques
Jeonbuk National University
2024
Samsung (South Korea)
2006-2023
Samsung Medical Center
2017-2023
Sungkyunkwan University
2007-2023
Korea Aerospace University
2020
Purdue University West Lafayette
2008
Kumoh National Institute of Technology
2007
Carbon nanotubes-supported Pt nanoparticles were loaded using a microwave oven on the defective carbon nanotubes generated by an additional oxidant during acid treatment. The authors’ Raman spectra and x-ray diffraction analysis demonstrated that defects created oxidation treatment acted as nucleation seeds for adsorption. had size distributions of 2–3nm uniformly distributed nanotubes. density functional calculations showed adsorption atom vacancy nanotube was significantly stronger s-p...
Abstract Background Although the pharmacokinetic profile of subcutaneous (SC) infliximab (IFX) is superior to conventional intravenous (IV) IFX, long-term efficacy and safety SC IFX in patients with inflammatory bowel disease (IBD) have not been reported yet. This study aimed evaluate clinical outcomes IBD treated compared those IV during maintenance therapy. Methods prospective cohort enrolled 61 remission who received scheduled Of them, 38 were switched while 23 continued dose...
Dual-polarized multiple-input multiple-output (MI-MO) antenna systems, where the antennas are grouped in pairs of orthogonally polarized antennas, a spatially-efficient alternative to single MIMO systems. A limited feedback beamforming technique is proposed for dual-polarized channels receiver has perfect channel knowledge but transmitter only receives partial information regarding instantiation. The system employs an effective signal-to-noise ratio (SNR) distortion minimizing codebook...
In fading channels, multiple-input multiple-output (MIMO) wireless systems make use of the spatial dimension channel to provide considerable capacity gain even when only partial state information (CSI) is available transmitter. A limited feedback linear preceding technique proposed for temporally correlated MIMO channels where receiver has perfect knowledge but transmitter receives quantized regarding instantiation. For this set-up, we first analyze performance a general rotation based...
Altered gene expression in intestinal mucosa is thought to contribute inflammatory process Crohn's disease (CD). The present study investigated changes the of genes associated with gut inflammation CD patients by RNA microarray identify biomarkers.Microarray analysis was carried out formalin-fixed, paraffin-embedded tissue specimens from six who underwent surgery without prior treatment and two healthy control subjects. Transcripts overexpressed were validated enzyme-linked immunosorbent...
Abstract A 14.3‐inch black and white plastic electrophoretic display (EPD) was developed at the resolution of 1280 × 900 lines (112 ppi). All processes TFT sheet (EPS) lamination were not only carried out below 120°C, but also optimized for large area TFT‐EPD on PEN films.
An amorphous indium-gallium-zinc-oxide (a-IGZO) thin film transistor (TFT) was fabricated by a self-aligned imprint lithography (SAIL) method with sacrificial photoresist layer. The SAIL is top-down to fabricate TFT using three-dimensional multilayer etch mask having all pattern information for the TFT. layer applied in process purpose of removing resin residues that were inevitably left when thinned plasma etching. This work demonstrated a-IGZO could be Specifically, simple fabrication...
In downlink multiuser systems, multiple-input multiple-output (MIMO) technology can be leveraged to increase capacity in fading channels. Knowledge of channel state information at the transmitter (CSIT) is important obtaining this gain. It unrealistic obtain perfect CSIT, but partial CSIT often made available by using some practical feedback method. Based on codebook techniques have been shown improve performance MIMO systems. Unfortunately, design problem has not fully investigated. paper,...
Collocated dual-polarized multiple-input multiple-output (MIMO) antenna systems provide a cost-space efficient alternative to current MIMO systems. A limited feedback beamforming technique is proposed for channels where the receiver has perfect channel knowledge but transmitter only receives quantized information regarding instantiation. By decomposing into single polarized and decoupled channel, performance distortion metric can be expressed as weighted sum of two metrics. The minimization...
This paper introduces the recent modeling challenges of Process Development Kit (PDK) development due to limitations transistor scaling and impact new process technologies. And a solution, Agile PDK is presented break though these by enabling Design Technology Co-Optimization (DTCO) activities in manufacturing levels. A series advanced algorithms are newly introduced not only reduce time (TAT), but also improve model accuracies Model-to-Hardware Correlation (MHC). It applied latest DRAM...
This brief reports the fabrication and characterization of a depletion-mode p-channel low-temperature polycrystalline silicon (poly-Si) thin-film transistor (TFT). The poly-Si channel was significantly doped by B ions to make hole-accumulation layer at zero gate voltage. TFT is normally ON-state, so that current can flow from source drain exhibited field-effect mobility 60 cm/sup 2//V/spl middot/s, threshold voltage 18 V, an on/of ratio 10/sup 6/, swing 1.1 V/dec.
Due to the increasing weight of electric vehicles, advanced tyre technology is urgently needed. In particular, there a need for dynamic contact analysis determine energy interaction between tyres and road surfaces. However, methods developed date are limited in that they require either numerous patches inside or sensor devices on ground. this study, we propose new method tyre-ground overcomes these limitations. By installing two-dimensional image tyre, deformations can be observed quantified...
We have synthesized multi-wall carbon nanotube (MWCNT)-reinforced Al matrix composites. The Al/MWCNT composite powders were prepared by ball milling using pristine or ball-milled as starting materials. consolidated a conventional cold-compaction, followed sintering. Uniform dispersion of individual MWCNTs within the was in particular critical factor for obtaining high density and quality Compared to materials, previously attrition-ball-milled with carbon-based PCA (process control agent) an...
Abstract Single‐walled carbon nanotube‐field effect transistors (SWCNT‐FETs) have been fabricated using in‐situ thermal chemical vapor deposition. For isolated devices, the resonant Raman spectra confirmed that full width at half maximum (FWHM) of radial breathing mode (RBM) peaks was about 4 cm –1 , consistent with atomic force microscopy (AFM) images clearly revealed individually SWCNTs on patterned substrate a diameter 1.3 nm. Subsequent I – V measurements SWCNT‐FET clear gating for...
In the maintenance of aircraft structural parts, a routine inspection is conducted to prevent fatigue crack growth beyond critical size during service life. Traditionally, interval determined by reliability centered analysis (RCMA), which accounts for stochastic nature growth. practical nondestructive (NDI), however, probability detection curve should be considered as well reflect detectability inspection. this paper, new RCMA proposed that incorporates this. Despite modern simulation...
Herein, adopting the Pt/Ta <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</inf> O xmlns:xlink="http://www.w3.org/1999/xlink">5</inf> /Pt stack, first-principles calculations are carried out to investigate conduction mechanism of tantala-based resistive switching devices. We first study formation conducting filament composed TaO xmlns:xlink="http://www.w3.org/1999/xlink">2-x</inf> from Ta matrix by modulating number oxygen vacancies and find...
We present a hydrogen-assisted enhanced boron diffusion model in oxide. By introducing the B+OH reaction and BOH diffusion, could reproduce B presence of high concentrations hydrogen, which has been reported by previous studies. The was applied to predict profile p-type MOSFET resulting profiles were used threshold voltage (Vth) short channel effects (SCE). simulation results are good agreement with measurements. Therefore, would be beneficial optimize H-involved process conditions.