A5076077242- Financial Markets and Investment Strategies
- Stock Market Forecasting Methods
- Market Dynamics and Volatility
- Financial Risk and Volatility Modeling
- Complex Systems and Time Series Analysis
- Forecasting Techniques and Applications
- Insurance and Financial Risk Management
- Advanced materials and composites
- Metal and Thin Film Mechanics
- Time Series Analysis and Forecasting
- Salmonella and Campylobacter epidemiology
- Microbial infections and disease research
- Advanced ceramic materials synthesis
- Credit Risk and Financial Regulations
- Mycobacterium research and diagnosis
- Wireless Communication Networks Research
- Energy Load and Power Forecasting
- Streptococcal Infections and Treatments
- Engineering Applied Research
- Corporate Finance and Governance
- Genomics and Phylogenetic Studies
- Viral Infections and Immunology Research
- Mesoporous Materials and Catalysis
- Religion, Society, and Development
- Halal products and consumer behavior
Pusan National University
2011-2024
Sejong University
2017-2024
Hanyang University
2024
Radiation Oncology Associates
2019
Digital China Health (China)
2019
Digital Health Cooperative Research Centre
2019
Animal and Plant Quarantine Agency
2012-2018
Kangwon National University
2018
Chung-Ang University
2017
Yonsei University
2013-2016
This study explores the initial impact of COVID-19 sentiment on US stock market using big data. Using Daily News Sentiment Index (DNSI) and Google Trends data coronavirus-related searches, this investigates correlation between 11 select sector indices Unites States (US) over period from 21st January 2020 to 20th May 2020. While extensive research analysis for predicting movement use tweeter data, not much has used DNSI or In addition, examines whether changes in predict industry returns...
Clostridium perfringens produces diverse virulent toxins that cause necrotic enteritis in poultry, resulting a great negative impact on the poultry industry. To study characteristics of C. chickens, we isolated 88 strains from chickens (1 strain per flock) with enteritis. The bacterial were screened for toxin type and antimicrobial susceptibility. Necropsy 17 died revealed their intestines dilated inflammatory exudates characterized by mucosal necrosis. All identified as A using multiplex...
Salmonella (S.) Typhimurium and S. Enteritidis are the major causative agents of food-borne illnesses worldwide.Currently, a rapid detection system using multiplex real-time polymerase chain reaction (PCR) has been applied for other pathogens such as Escherichia coli, Staphylococcus aureus Streptococcus spp.A PCR was developed simultaneous spp., especially Enteritidis, in beef pork.For specific sensitive PCR, three representative primers probes were designed based on sequence data from...
The real estate auction market has become increasingly important in the financial, economic and investment fields, but few artificial intelligence-based studies have attempted to forecast prices of estate. purpose this study is develop forecasting models using intelligence statistical methodologies. are developed through a regression model, an neural network genetic algorithm. For empirical analysis, we use Seoul apartment data from 2013 2017 predict compare accuracy models. algorithm model...
Poultry products have consistently been identified as important sources of Salmonella infection in humans, because vertical transfer from breeding hens to progeny is an aspect the epidemiology spp. within poultry industry. The aim this study was estimate prevalence contamination 15 different located geographical areas among 50 slaughterhouses authorized operate Korea and characterize all isolates by genotyping, phage typing antibiotic resistance pattern. isolated 10 (66.7%) first 5 (33.3%)...
In this study, two Listeria bacteriophages, LMP1 and LMP7, were isolated from chicken feces as a means of biocontrol L. monocytogenes. Both bacteriophages had lytic effect on monocytogenes ATCC 7644, 15313, 19114, 19115. Phages LMP7 able to inhibit the growth 7644 19114 in tryptic soy broth at 10°C 30°C. Nevertheless, was more effective than inhibiting 19114. On contrary, 7644. The morphology resembled that members Siphoviridae family. inhibited by both milk; however, only activity also...
The futures market plays a significant role in hedging and speculating by investors. Although various models instruments are developed for real-time trading, it is difficult to realize profit processing trading vast amount of data. This study proposes index strategy that uses the KOSPI 200 time series We construct pattern matching system (PMTS) based on dynamic warping algorithm recognizes patterns data movement morning determines afternoon’s clearing strategy. adopt 13 27 representative...
Abstract Background In this study, porcine encephalomyocarditis virus (EMCV) virus-like particles (VLPs) were generated using a baculovirus expression system and tested for immunogenicity protective efficacy in vivo . Results VLPs successfully from Sf9 cells infected with recombinant confirmed to be approximately 30-40 nm by transmission electron microscopy (TEM). Immunization of mice 0.5 μg crude protein containing the resulted significant protection EMCV infection (90%). swine, increased...
Effects of heat treatment on the characteristics Royal paulownia (Paulownia tometosa) wood were investigated. The results compared with those Suwon silver poplar (Populus tementiglandulosa) and Korean red pine (Pinus densiflora) woods. samples three species treated at 160°C, 180°C, 200°C 220°C in an electric furnace for 2 hours. changes color, density, mass loss, relative crystallinity investigated before after treatment. lightness (L*) decreased rapidly from all species. There no change...
There has been a growing demand for portfolio management using robo-advisors, and hence, research on the automation of composition increasing. In this study, we propose model that automates structure by instability index financial time series genetic algorithms (GAs). We use to filter investment assets optimize threshold value used as filtering criterion applying GA. For an empirical analysis, stocks, bonds, commodities exchange traded funds (ETFs), rate. compare performance our with risk...
In this study, we developed a novel tool for purifying two mycotoxins, aflatoxin B1 (AFB1) and zearalenone (ZEN), in feed.This system utilized monoclonal antibodies (mAbs) against AFB1 ZEN, magnetic nanoparticles (MNPs).Among ten MNPs with different diameters functional groups, 100-nm diameter MNP (fMA) conjugated to an amine group (-NH2) was found be optimum coupling mAbs.The optimal mAb concentrations the fMA along mycotoxin purification capacities of fMA-mAb conjugates (fMA-AFB1 fMA-ZEN)...
The effects of CaO content and post-heat treatment were investigated on the phase stability mechanical thermal properties Ca-PSZ. ZrO2 specimens with 5–10 mol% sintered, was performed at 1200 °C for 100 h. Subsequently, to test analyze crystal structure microstructure, evaluated. All partially stabilized by (5CSZ–10CSZ) in a mixed monoclinic tetragonal phase; however, peaks secondary CaZrO3 observed 10CSZ. ratio decreased from 62.50% (5CSZ) 21.02% (10CSZ) as increased. Additionally, 59.38%...
The thermomechanical properties of carbon fiber reinforced silicon carbide ceramic matrix composites (Cf/SiC CMCs) were studied up to 2000 °C using high-temperature in situ flexural testing argon. CMC specimens fabricated an ultrahigh concentration (66 vol%) aqueous slurry containing nano-sized powder. SiC powder compacts obtained by drying the and densified precursor impregnation pyrolysis (PIP) method with field assisted sintering technology/spark plasma (FAST/SPS). high relative density...
Since the creation of stock markets, there have been attempts to predict their movements, and new prediction methodologies devised. According a recent study, when Russell 2000 industry index starts rise, stocks belonging corresponding in other countries also rise accordingly. Based on this empirical result, study seeks start date uptrends using index. The proposed model predicts future prices denoising autoencoder (DAE) long short-term memory (LSTM) existence timing change points through...
The futures market plays a significant role in hedging and speculating by investors. Although various models instruments are developed for real-time trading, it is difficult to realize profit processing trading vast amount of data. This study proposes index strategy that uses the pattern KOSPI 200 time series We construct matching system (PMTS) based on dynamic warping algorithm recognizes patterns data movement morning determines afternoon's clearing strategy. adopt 13 27 representative...
We demonstrate Mycobacterium bovis infection in wild boar (Sus scrofa) South Korea. During 2012–15, we attempted to isolate M. from 847 animals, mainly Korean water deer (Hydropotes inermis argyropus), raccoon dogs (Nyctereutes procyonoides), and boar, 11 regions isolated three of 118 (2.5%) captured Gyeonggi Province, where bovine tuberculosis (bTB) outbreaks have also occurred livestock. Spoligotypes mycobacterial interspersed repetitive units–variable number tandem repeats types these...
In this study, the characteristics of white charcoal from kilns made for both production and thermotherapy traditional kiln were compared examined. A as a secondary purpose was to minimize environmental problems such fine dust harmful gas generated sealed in consideration comfort safety. White Charcoal produced had higher ash volatile matter lower fixed carbon than that kiln. The density slightly one, but equilibrium moisture content pH not significantly different. calorific value,...