A5026845822- Coronary Interventions and Diagnostics
- Cardiac Imaging and Diagnostics
- Lipoproteins and Cardiovascular Health
- Photonic and Optical Devices
- Refrigeration and Air Conditioning Technologies
- Optical Network Technologies
- Optical Coherence Tomography Applications
- Heat Transfer and Optimization
- Antiplatelet Therapy and Cardiovascular Diseases
- Semiconductor Lasers and Optical Devices
- Retinal Imaging and Analysis
- Cardiovascular Disease and Adiposity
- Advanced Fluorescence Microscopy Techniques
- Advanced Optical Network Technologies
- Cardiovascular Function and Risk Factors
- Heat Transfer and Boiling Studies
- Vascular Procedures and Complications
- Wireless Communication Networks Research
- Cerebrovascular and Carotid Artery Diseases
- Peripheral Artery Disease Management
- Advanced Wireless Communication Techniques
- Coronary Artery Anomalies
- Advanced Photonic Communication Systems
- Ophthalmology and Visual Impairment Studies
- Power Line Communications and Noise
Daegu Catholic University Medical Center
2018-2024
Weatherford College
2022-2023
Indiana University – Purdue University Indianapolis
2021-2023
Daewoo Shipbuilding and Marine Engineering (South Korea)
2022
Catholic Medical Center
2022
University Medical Center
2022
Indiana University Bloomington
2020-2021
National Institutes of Health
2017-2019
National Eye Institute
2017-2019
Gangnam Severance Hospital
2017
Recently, resting pressure-derived indexes such as full-cycle ratio (RFR) and diastolic pressure (dPR) have been introduced to assess the functional significance of epicardial coronary stenosis. The present study sought investigate agreement RFR or dPR with other (instantaneous wave-free [iFR] fractional flow reserve), sensitivity for anatomic hemodynamic stenosis severity, prognostic implications compared iFR Methods: were calculated from tracings by an independent core laboratory in 1024...
A frequency offset compensation method for OFDM-FDMA, that can correct offsets after the DFT via circular convolution, is proposed as an alternative to direct corrects by multiplying complex exponents of estimates before DFT. In contrast whose complexity increases proportional number users, computational load scheme decreases users increases. It shown simpler implement than when greater two. Furthermore, former outperform latter, because a one user does not affect data other users. Computer...
We evaluated the 2-year clinical outcomes of deferred lesions with discordant results between resting and hyperemic pressure-derived physiologic indices, including distal to aortic coronary pressure (resting Pd/Pa), instantaneous wave-free ratio (iFR), full-cycle (RFR), diastolic (dPR), fractional flow reserve (FFR).
Background Nonhyperemic pressure ratios (NHPRs) such as instantaneous wave‐free ratio, resting full‐cycle or diastolic ratio have emerged invasive physiologic indices precluding the need for hyperemic agents. The current study sought to evaluate long‐term prognostic implications of NHPRs compared with fractional flow reserve (FFR). Methods and Results were calculated from tracings by an independent core laboratory in 1024 vessels (435 patients). association between risk 5‐year...
Purpose: Psychophysical and genetic testing provide substantial information about color vision phenotype genotype. However, neither reveals how phenotypes genotypes manifest themselves in individual cones, where its anomalies are thought to originate. Here, we use adaptive-optics phase-sensitive optical coherence tomography (AO-PSOCT) investigate these relationships. Methods: We used AO-PSOCT measure cone function—optical response light stimulation—in each of 16 human subjects with different...
A frequency offset compensation method for OFDM-FDMA, that can correct offsets after the DFT via circular convolution, is proposed as an alternative to direct corrects by multiplying complex exponents of estimates before DFT. In contrast whose complexity increases proportional number users, computational load scheme decreases users increases. It shown simpler implement than when greater two. Furthermore, former outperform latter, because a one user does not affect data other users. Computer...
The apolipoprotein B (Apo B), Apo B/A1 ratio, lipoprotein (a), and low-density cholesterol (LDL-C)/Apo ratio are associated with coronary artery disease (CAD). However, the association between these parameters CAD in non-diabetic patients without high LDL-C levels is unclear. Our goal was to assess which parameter most strongly levels. This study included 487 < 130.0 mg/dL. All underwent computed tomographic angiography. We assessed significance of each continuous atherogenic biomarker...
All-optical set-reset flip-flop operations of conventional circular cylindrical-shaped 1.55-μm wavelength single-mode vertical-cavity surface-emitting lasers (VCSELs) have been demonstrated at a switching frequency 1 GHz based on polarization bistability observed via injection current variation. The energy set and reset pulses was lower than 4.5 fJ bias the VCSEL 4 mA. Polarization bistable VCSELs will be useful for high-speed optical signal processing applications.
Actinomyces meyeri is an uncommon cause of human actinomycosis. Here, we report a rare case empyema caused by A. meyeri. A 49-year-old male presented with history 10 days dyspnea and chest pain. large amount loculated pleural effusion was present on the right side multiple lung nodules were documented radiological studies. tube inserted purulent fluid drained. isolated in anaerobic cultures fluid. The infection alleviated response to treatment intravenous penicillin G (20 million IU daily)...
Background Sex‐specific differences may influence prognosis after deferred revascularization following fractional flow reserve ( FFR ) measurement. This study sought to investigate the sex in long‐term of patients with assessment. Methods and Results A total 879 (879 vessels) >0.75 who underwent coronary measurements were enrolled from 3 countries (Korea, Japan, Spain). Long‐term outcomes assessed 649 men 230 women by patient‐oriented composite outcome POCO , a any death, myocardial...
Adaptive optics (AO) measures and corrects ocular wavefront aberrations, enabling cellular-resolution retinal imaging stimulation, enhanced visual performance. AO is a dynamic control system that must track correct temporal changes in aberrations real time. This necessitates sensor whose integration time readout are sufficiently short to minimize the latency of feedback hence maximize Most current ophthalmic systems use long times on order 10−60 ms, resulting latencies, low loop rates...
There are few data of clinical outcomes after drug-coated balloon (DCB) angioplasty according to neointimal characteristics. This study investigated long-term timing in-stent restenosis (ISR) and characteristics in patients with drug-eluting stent (DES) ISR DCB angioplasty.
Lipoprotein(a) (Lp[a]) and the atherogenic index of plasma (AIP) have been reported as predictive markers coronary artery calcium (CAC). However, previous studies demonstrated that cardiovascular risk associations with Lp(a) are attenuated in patients low-density lipoprotein cholesterol (LDL-C) levels ≤135 mg/dL. few articles identified factors CAC without high LDL-C. Therefore, we performed this study to investigate association AIP LDL-C mg/dL.This included 625 lipid-lowering agent naive...
A seamless handover scheme with low latency and packet loss is important to maintain TCP performance of mobile users. Several solutions have been proposed such as Hierarchical Mobile IPv6 (HMIPv6), Fast Handover protocol for (FMIPv6), Seamless Handoff architecture IP (S-MIP), ..., however, the overall still too high time-sensitive services. This paper proposes a novel improvement existing frameworks by optimizing address configuration stage so that further reduced. The framework based on...
In this paper, we will survey and classify researching advanced routing algorithms that take advantages of MPLS (multiprotocol label switch) network to extent algorithms, supporting QoS (quality service) services traffic engineering load balancing. We also consider some recent projects are working with algorithms. This paper include 6 parts. Part 1 presents introduction. 2 based routing, Classification routing. 3 on information current such as: minimum interference algorithm (MIRA), dynamic...