A5103200437- Speech and Audio Processing
- Nonlinear Dynamics and Pattern Formation
- Acoustic Wave Phenomena Research
- Chaos control and synchronization
- Parallel Computing and Optimization Techniques
- Quantum chaos and dynamical systems
- Embedded Systems Design Techniques
- Advanced Adaptive Filtering Techniques
- stochastic dynamics and bifurcation
- Speech Recognition and Synthesis
- Consumer Perception and Purchasing Behavior
- Advanced Data Storage Technologies
- Seaweed-derived Bioactive Compounds
- Physics of Superconductivity and Magnetism
- Distributed and Parallel Computing Systems
- Diverse Topics in Contemporary Research
- ECG Monitoring and Analysis
- Cloud Computing and Resource Management
- Educational Research and Pedagogy
- Natural Language Processing Techniques
- Low-power high-performance VLSI design
- Recommender Systems and Techniques
- Educational Systems and Policies
- Ultrasound and Hyperthermia Applications
- Food Quality and Safety Studies
Samsung (South Korea)
2006-2025
Yonsei University
2020-2024
Ajou University
1993-2019
Government of the Republic of Korea
2016
Kunsan National University
2016
Busan Medical Center
2016
Gangneung–Wonju National University
2013-2014
Dongguk University
2013
Wonkwang University
2012
Jeju National University
2011
As well as being able to reproduce sound in one region of space, it would be useful reduce the level reproduced other spatial regions, with a "personal audio" system. For mobile devices this is motivated by issues privacy for user and need annoyance people nearby. Such personal audio systems can realized arrays loudspeakers that become superdirectional at low frequencies, when array dimensions are small compared acoustic wavelength. The design then becomes compromise between performance...
For bulk samples of the ceramic superconductor Y${\mathrm{Ba}}_{2}$${\mathrm{Cu}}_{3}$${\mathrm{O}}_{7}$ in a radio-frequency magnetic field and dc ${H}_{0}$ we observe novel nonlinear behavior including very-high-order odd-harmonic generation if ${H}_{0}=0$. If ${H}_{0}\ensuremath{\ne}0$, there is additional even-harmonic generation. The power displays very sharp dip at ${H}_{0}\ensuremath{\sim}0$, width \AA{} 100 \ensuremath{\mu}G. This related can be semiquantitatively understood by...
The effect of the administering DK (dieckol) isolated from<italic>Ecklonia cava</italic>on blood glucose level in hyperglycemia zebrafish. Thus, zebrafish could be efficiently used to evaluate a wide range anti-diabetic activities.
Background BVAC-C, a B cell– and monocyte-based immunotherapeutic vaccine transfected with recombinant HPV E6/E7, was well tolerated in HPV–positive recurrent cervical carcinoma patients phase I study. This IIa study investigates the antitumor activity of BVAC-C 16– or 18–positive cancer who had experienced recurrence after platinum-based combination chemotherapy. Patients methods were allocated to 3 arms; Arm 1, injection at 0, 4, 8 weeks; 2, 8, 12 3, weeks topotecan 6, 10, 14 weeks....
This paper presents a simulation study of InGaAs, Si, and Ge nFinFETs by solving the coupled drift-diffusion (DD) multisubband Boltzmann transport equation (MSBTE) in 3D domains. The effects quasi-ballistic transport, source/drain contact resistances, band-to-band tunneling (BTBT) on device performance are studied.
The fuzzy logic controller has been focused in the field of vector control induction motors. However, a systematic method for designing and tuning is not developed yet. In this paper, an auto-tuning based on genetic algorithm presented. proposed method, normalization parameters membership function are translated into binary bit-strings, which processed by order to be optimized well-chosen objective (i.e. fitness function). To examine validity indirect motors simulated experiment carried out....
For a sintered rod of ${\mathrm{YBa}}_{2}$${\mathrm{Cu}}_{3}$${\mathrm{O}}_{7}$ at 78.3 K, detailed data are reported for the complicated dependence ac susceptibility \ensuremath{\chi}\ifmmode \tilde{}\else \~{}\fi{}=\ensuremath{\chi}'-i\ensuremath{\chi}'' on applied and dc fields, ascribed to inter- intragranular components material. The intergranular understood in detail by modified critical-state model, assuming critical current density...
A few studies in the travel research literature indicate a relationship between motivation and use of information sources for decisions. This study will propose test causal model specifying these relationships using structural equation modelling. When specific client groups are matched with their preferred sources, marketers can easily access target group. The application LISREL also be discussed.
It is necessary to achieve high performance in the task of zero anaphora resolution (ZAR) for completely understanding texts Korean, Japanese, Chinese, and various other languages. Deep-learning-based models are being employed building ZAR systems, owing success deep learning recent years. However, objective a high-quality system far from achieved even using these models. To enhance current techniques, we fine-tuned pre-trained bidirectional encoder representations transformers (BERT)....
Myocardial infarction (MI) is a common cardiovascular disease, the early diagnosis of which essential for effective treatment and reduced mortality. Therefore, novel methods are required automatic screening or MI, many studies have proposed diverse conventional its detection. In this study, we aimed to develop sleep-myocardial (sleepMI) algorithm MI based on nocturnal electrocardiography (ECG) findings from diagnostic polysomnography (PSG) data using artificial intelligence (AI) models. The...
Bifurcations associated with stability of the saddle fixed point Poincare map, arising from unstable equilibrium potential, are investigated in a forced Duffing oscillator double-well potential. One interesting behavior is dynamic stabilization point. When driving amplitude increased through threshold value, becomes stabilized via pitchfork bifurcation. We note that this similar to inverted pendulum vertically oscillating suspension After stabilization, behaves as single-well oscillator,...
본 연구는 돈육 패티 제조 시 첨가되는 NaCl 일부를 KCl, potassium lactate, lactate 및 calcium ascorbate로 각각 40%, 30%, 30% 대체하였을 때 패티의 이화학적 특성과 관능 특성에 미치는 영향을 구명하고자 실시하였다. NaCl을 KCl과 제조된 가열감량을 줄이고 지방산화와 미생물의 성장을 억제하였으며, 색과 관능적 특성에는 미치지 않는 것으로 나타났다. 이러한 결과는 저염 육제품의 개발 NaCl의 대체제로서 ascorbate의 사용이 가능할 판단되었다. 하지만 lactate는 지질 산화와 성장 억제효과가 있었고 육색과 주지 않았으나, 가열감량이 저장 초기와 4일에 대조구와 다른 처리구들에 비해 유의적으로 높게 나타나 대체제로 사용하기 위해서는 첨가량을 조절할 필요가 있는 사료되었다. This study investigated the effects of sodium chloride, and ascorbate on...
Effective rejection of time-varying clutter originating from slowly moving vessels and surrounding tissues is important for depicting hemodynamics in ultrasound color Doppler imaging (CDI). In this paper, a new adaptive method based on spectral analysis (ACR-SA) presented suppressing nonstationary clutter. ACR-SA, tissue flow characteristics are analyzed by singular value decomposition acceleration backscattered signals to determine an appropriate filter set filters. To evaluate the ACR-SA...
본 논문에서는 고성능 병렬 계산 장치로 주목받고 있는 GPU에서의 선형 합동 방식(linear congruential)의 난수 생성 프로그램을 구현하였다. 난수는 임의성을 필요로 하는 모든 분야에서 중요하게 사용되며, 방식은 컴퓨터 계산을 통하여 생성되는 의사 난수(pseudo random numbers)생성 방식 중에 가장 많이 사용되는 방식이다. NVIDIA CUDA 프로그래밍 모델을 사용하여 구현된 프로그램 및 MPI를 사용한 다중 GPU를 구동하는 병렬프로그램을 설명하고, 생성된 난수들의 임의성과 성능을 알아보았다. 또한 원주율(π)을 계산하기 위한 몬테카를로 알고리즘을 라이브러리 함수인 cuRAND와 비교하였으며, 다수의 동시에 계산한 성능의 변화도