A5100327061- Embedded Systems Design Techniques
- Interconnection Networks and Systems
- VLSI and Analog Circuit Testing
- Advanced MIMO Systems Optimization
- Cooperative Communication and Network Coding
- Radio Frequency Integrated Circuit Design
- Digital Media and Visual Art
- Wireless Communication Networks Research
- Parallel Computing and Optimization Techniques
- Internet of Things and Social Network Interactions
- Spam and Phishing Detection
- Advanced Malware Detection Techniques
- Augmented Reality Applications
- Error Correcting Code Techniques
- Wireless Networks and Protocols
- Technology and Data Analysis
- Educational Systems and Policies
- Web Data Mining and Analysis
- Robotic Path Planning Algorithms
- Wireless Body Area Networks
- Innovation in Digital Healthcare Systems
- Statistical and numerical algorithms
- Engineering Applied Research
- COVID-19 and Mental Health
- Advanced Wireless Communication Techniques
Chonnam National University
2012-2023
California Maritime Academy
2023
Software602 (Czechia)
2023
Bridge University
2022
George Mason University
2022
Pyeongtaek University
2019-2021
Computer Emergency Response Team
2020
Korea Center for Disease Control and Prevention
2020
Korea Disease Control and Prevention Agency
2020
Hallym University
2020
We analyzed reports for 59,073 contacts of 5,706 coronavirus disease (COVID-19) index patients reported in South Korea during January 20-March 27, 2020. Of 10,592 household contacts, 11.8% had COVID-19. 48,481 nonhousehold 1.9% Use personal protective measures and social distancing reduces the likelihood transmission.
We report the first 7,755 patients with confirmed COVID-19 in Korea as of March 12th, 2020. A total 66 deaths have been recorded, giving a case fatality proportion 0.9%. Older people, and those comorbidities were at higher risk fatal outcome. The highest number cases Daegu, followed by Gyeongbuk. This summary may help to understand disease dynamics early phase outbreaks, therefore, guide future public health measures.
Nowadays, human activity recognition (HAR) plays an important role in wellness-care and context-aware systems. Human activities can be recognized real-time by using sensory data collected from various sensors built smart mobile devices. Recent studies have focused on HAR that is solely based triaxial accelerometers, which the most energy-efficient approach. However, such approaches are still energy-inefficient because accelerometer required to run without stopping so physical of a user...
The purpose of this study is to figure out how uptake counts technetium (<TEX>$^{99m}Tc$</TEX>) among radioisotopes in the human body are affected if computed tomography (CT), magnetic resonance imaging (MRI) and isotope examination performed consecutively. <TEX>$^{99m}Tc$</TEX> material, iodinated contrast media for CT paramagnetic (MR) were used as experimental materials. First, was added 4 cc normal saline a test tube. Then, 2 such <TEX>$Iopamidol^{(R)}$</TEX> <TEX>$Dotarem^{(R)}$</TEX>...
Packet switched network-on-chip (NoC) has been proposed to support the trend for system-on-chip integration. In this paper, adaptive routing scheme small buffer size guarantee low drop rate is proposed. We model NtimesN mesh topology using C++, and then simulate evaluate NoC communication architecture
In this paper, we design next-generation WLAN receiver based on Network-on-chip platform. The transaction level analysis is performed in terms of the throughput performance. Routing technique and buffer size are evaluated as NoC configuration. As a result, performance enhancement from exchanging protocol 30% 200 MHz switching frequency 128 bit link width. With same performance, increasing requires 20 times more additional area our application.
In this paper, development of steering control system for autonomous vehicle using array magnetic sensors the guidance based is described. The Steering operated following on marker position roadway. For experimental test, designed and operation test realized.
Real-time monitoring of heart rate (HR) and body temperature (BT) is crucial for the prognosis diagnosis cardiovascular disease healthcare. Since current systems are too rigid bulky, it not easy to attach them human body. Also, their large consumption limits working time. In this paper, we develop a wireless sensor patch HR BT by integrating chip, communication electrodes on flexible boards that covered with non-toxic, but skin-friendly adhesive patch. Our experimental results reveal can...
한국어교육 현장에서 교사는 학습자의 한국어 숙달도를 평가하기 위해 학습자 쓰기를 평가 대상으로 삼는 경우가 많다. 그러나 쓰기 평가에서 평가자의 타당도와 신뢰도를 확보하는 것은 쉽지 않으며 특히 대규모 숙달도 평가자 모집이나 교육 등에 드는 비용과 노력이 적지 않은 것도 사실이다. 이에 최근 분야에서도 인공지능 기반의 자동평가와 관련한 논의가 시작되었다.기계 학습 자동평가는 채점 자질(Feature)을 기반으로 인간 결과를 모사하여 평가를 수행하므로 자질 설계(Feature Engineering)는 자동평가에서 가장 핵심적인 과정이라고 볼 수 있다. 그러므로 본 연구에서는 말뭉치에서 추출한 논설문 399편을 자동평가를 위한 자질을 추출하고 통계적 방법론을 통해서 선정된 자질과 점수와의 상관관계를 분석하고 자질이 점수에 미치는 영향을 살펴보았다.그 결과 ‘내용 및 과제 수행’ 점수는 코사인 유사도(Cosine Similarity), 유클리디언 유사도(Euclidean...
웹은 새로운 이야기 양식을 실험할 수 있는 개방적인 장이다. 콘텐츠를 접할 창구를 넘어 자신에게 최적화된 생산하고 향유할 복합적인 개념의 공간이 되었다. 웹을 통해 향유되는 콘텐츠의 형태는 텍스트와 이미지를 동영상까지 범위를 확장하고 있다. 한국의 웹드라마는 허구적 인물과 플롯을 가지는 연재 형식의 영상 콘텐츠이다. 웹이라는 대중적인 이야기장 안에서 기업, 플랫폼 사업자, 개인 등 다원적 창작 주체들의 참여는 웹드라마 장르와 소재의 롱테일화를 가져온다. 향유의 측면에서 모바일 미디어와 결합하면서 다층적인 이동성을 보여준다. 지리적 이동성과 다양한 미디어 플랫폼을 이동하며 향유하는 이동성이 그것이다. 웹드라마의 향유 방식은 미디어를 통합적으로 트랜스미디어 리터러시에 기반한다. 텍스트의 측면에서도 기존 드라마나 영화에서 주변부에 머물렀던 장르를 적극적으로 수용한다. 판타지, 스릴러, 호러 장르의 다중 아크 시각적 스펙터클에 의존하지 않고, 환상성을 구현하고 또한 미시적인 일상을...
The MIMO-OFDM is the strong candidate as next generation wireless LAN and 4G mobile communication systems. In this paper, we design iterative decoding detection architecture receiver based on network chip platform. transaction level analysis with NoC (routing switching scheme) variation performed in terms of throughput performance. As a result, performance enhancement from routing 30% 200 MHz frequency 128 bit link width. same by scheme requires 20 times more additional area our application
본 논문에서는 과학과 예술을 중심으로 만들어진 융합인재교육(STEAM) 프로그램을 통해 다학제적 사고의 확장으로의 방법론을 제시한다. 그리고 언어적 도구들과 시각, 청각, 촉각을 이용한 디지털 시각화 기술로 나타내는 미디어 아트 작품 창작으로 학생들이 경험할 수 있는 아날로그 감성적 표현과 공감각의 표현을 분석하는데 목적이 있다. 이 프로그램은 고등학생을 위해 개발된 STEAM 프로그램으로 "칸딘스키, 소리를 그리다"이다. 대표적인 공감각자였던 칸딘스키의 작품을 통해서 간접적으로 공감각을 표현하는 방법을 배우게 된다. 학생들은 예술이 표면적인 개념에만 머무는 것이 아니라 확장된 개념 속에서 놀이, 이야기, 공감각 등으로 재구성한 다양한 할 This paper proposes a methodology of expanding the mind in multi-disciplinary ways through education program based on science and art....
In this paper, a smart dressing system was implemented based on flexible pH sensors that can monitor the infection of wounded area by tracking value area. Motivated fabrication process widely used for semiconductors, sensor devised with polyester (PET) film and Si wafer, which deposits Au Ag PET film. Because electrodes are comprised working electrode reference electrode, fabricated synthesizing Polyaniline (PANI) Ag/AgCl, while has four channels to evenly measure in wide The constructed...
This work discusses the challenges of multi-label image classification and presents a novel Efficient Shuffle Net (EffShuffNet) based on convolutional neural network (CNN) architecture to address these challenges. Multi-label is difficult as complexity prediction increases with number labels classes, current multi-model approaches require optimized deep learning models which increase computational costs. The EffShuff block divides input feature map into two parts processes them differently,...
Network impairments such as delay and packet losses have severe impact on the presentation quality of many predictive video sources. Interleaved source coding (ISC) is one error resilient methods for coded frames transmitted over single erasure channel. ISC has shown to significantly improve overall stream a lossy In this paper, evaluated channels with memory. particular, we analyze correlation popular Gilbert model ISC-based wide range loss probabilities. Simulations that advances...
The biometric on-card-process solution used on the smart card has a potential for high security with greatly minimized fraud risks in financial sector. In this paper we discuss palm vein system and its compatibility sector, software design on-card-processing based Java virtual machine. is stimulated result obtained that was tested PC login application. level of highly reliable since FRR FAR very low compared to other systems.
Cooperative relaying is considered as the most cost-efficient method in 3GPP LTE-Advanced terms of coverage prolongation and transmission efficiency. In this paper, we analyze best performing cooperative scheme between Amplify-- and--Forward (AF) Decode-and--Forward (DF) schemes for systems. The comparison AF DF Relay Nodes (RN) important because both approaches are currently under consideration (LTE-A). performance analysis these two relay nodes considers criteria of: (1) Linear...
In the paper, we introduce a TLM (transaction level modeling) methodology focusing on IEEE 802.11 WLAN as derivative system. Decomposing entire system into several computation components, analyzed property of each transaction, resulting in TLM. case shared bus, simulation results show effect communication architecture such bus protocol and parameters performance.