A5087060429- Structural Behavior of Reinforced Concrete
- Structural Load-Bearing Analysis
- Numerical methods in engineering
- Telecommunications and Broadcasting Technologies
- Advanced Wireless Communication Techniques
- Structural Engineering and Vibration Analysis
- Fatigue and fracture mechanics
- Education and Learning Interventions
- Rocket and propulsion systems research
- Seismic Performance and Analysis
- Diverse Approaches in Healthcare and Education Studies
- Advanced MIMO Systems Optimization
- Cavitation Phenomena in Pumps
- Educational Systems and Policies
- Hydraulic and Pneumatic Systems
- Innovative concrete reinforcement materials
- Multimedia Communication and Technology
- Geotechnical Engineering and Underground Structures
- Advanced Numerical Methods in Computational Mathematics
- Blind Source Separation Techniques
- Fire effects on concrete materials
- Structural Response to Dynamic Loads
- Education, Safety, and Science Studies
- Engineering Applied Research
- Innovation in Digital Healthcare Systems
Korea Institute of Oriental Medicine
2025
Kyung Hee University
2015-2024
Kyungbok University
2022
Gachon University
2021-2022
Central Research Institute
2021
Chonnam National University
2003-2020
Korea Aerospace Research Institute
2005-2020
Korea Research Institute of Chemical Technology
2017-2020
Pusan National University Hospital
2020
Indiana University
2019
Objective Nowadays smartphone overuse has become a social and medical concern. For the diagnosis treatment, clinicians use self-report information, but report data often does not match actual usage pattern. The paper examines similarity variance in patterns between measured self-reported data. Methods Together with data, real log is collected from 35 college students metropolitan region of Northeast Asia, using Android monitoring application developed by authors. Results unconscious users...
This study examines the structural relationship among key factors influencing student satisfaction and achievement in online learning. A model was developed by considering course structure, student–student interaction, instructor presence, engagement, as factors. In order to verify effectiveness of model, we utilized survey data collected from a total 250 students enrolled two asynchronous courses offered at Kyung Hee University Korea fall semester 2020. Then, were analyzed using equation...
Abstract This paper presents a generalized finite element method (GFEM) based on the solution of interdependent global (structural) and local (crack)‐scale problems. The problems focus resolution fine‐scale features in vicinity three‐dimensional cracks, while problem addresses macro‐scale structural behavior. solutions are embedded into space for using partition unity method. accurately solved an hp ‐GFEM thus proposed does not rely analytical solutions. methodology enables accurate modeling...
Prenatal maternal stress predicts subsequent elevations in youth depressive symptoms, but the neural processes associated with these links are unclear. This study evaluated whether prenatal is child brain development, and adolescent symptoms using a prospective design 74 mother pairs (40 boys). Maternal was assessed during pregnancy, cortical thickness at age 7, 12. less primarily frontal temporal regions elevated symptoms; additionally correlated symptoms. The observed associations...
Abstract Aims Although many studies have reported an association between serum γ‐glutamyltransferase (GGT) and cardiovascular risk factors, the mechanism of this relationship has not been clarified. Methods The medical records 29 959 subjects (age, median 48, range 14–90 years; 16 706 men, 13 253 women) who visited Center for Health Promotion at Samsung Medical a check‐up January 2001 December 2003, were investigated. Subjects with hepatic enzyme/GGT concentrations higher than three times...
Abstract We analyzed mitochondrial DNA (mtDNA), Y‐chromosome single nucleotide polymorphisms (Y‐SNP), and autosomal short tandem repeats (STR) of three skeletons found in a 2,000‐year‐old Xiongnu elite cemetery Duurlig Nars Northeast Mongolia. This study is one the first reports detailed genetic analysis ancient human remains using types markers. The analyses revealed that subject was an male skeleton with maternal U2e1 paternal R1a1 haplogroups. evidence distinctive Indo‐European lineages...
This study proposes an effective steel frame modular system and evaluates the structural performance of its beam-column connection through experimental analytical work. The new utilizes blind bolts, which allow free access to members closed cross-section. In addition, is designed such that strength beam considerably lower than column implement strong column-weak concept. order investigate effectiveness proposed connection, two types specimens were tested. One has four knee brace increase...
In this study, statistical assessment was performed on student engagement in online learning using the k-means clustering algorithm, and their differences attendance, assignment completion, discussion participation perceived outcome were examined. process, three features such as behavioral, emotional cognitive aspects of considered. Data for study collected from undergraduate students who enrolled an asynchronous course provided by Kyung Hee University Republic Korea fall semester 2021. The...
Abstract This paper presents an analysis of interacting cracks using a generalized finite element method (GFEM) enriched with so-called global-local functions. In this approach, solutions local boundary value problems computed in are used to enrich the global approximation space through partition unity framework GFEM. approach is related procedure FEM, which broadly industry analyze fracture mechanics complex three-dimensional geometries. paper, we compare effectiveness FEM GFEM enrichment...
Summary Openings in RC flat‐plate slabs are one of the critical factors that influence punching shear strength slab and determine its thickness vicinity slab‐column joint. This study experimentally investigates effects openings on without reinforcement. Tests were performed eight specimens considering layout number as test variables. The failure characteristics each specimen examined, variables strengths investigated. measured compared with predictions several concrete design codes,...
Abstract Background Typhoid, which is caused by Salmonella enterica serovar Typhimurium, remains a major health concern worldwide. Multidrug-resistant strains of have emerged exhibit increased survivability and virulence, thus leading to morbidity. However, little known about the protective immune response against this microorganism. The outer membrane protein (Omp)A bacteria plays an important role in pathogenesis. Results We purified OmpA from S. Typhimurium (OmpA-sal) characterized...
The recycling of industrial waste such as bottom ash from furnaces is an important issue in construction industry, since it enables reduction cost and has beneficial effect on the environment. In this study, we have investigated bond characteristics steel deformed bars embedded artificial lightweight aggregate concrete which manufactured ash. A pullout test was performed 144 specimens to measure strengths. test, parameters included compressive strength embedment length rebar. load vs. slip...
A hydraulic performance test is conducted for a fuel pump of liquid rocket engine turbopump. The driven by an electric motor tested in water environment. Experimental results indicate that the inducer has negligible effect on head and efficiency but significant cavitation performance. Additionally, autonomous carried out to investigate more detail, it found reaches critical point when dropped 55%. reduction required net positive suction centrifugal attachment also calculated considering flow...
Abstract The bond behavior of reinforcing bars is an important issue in the design reinforced concrete structures and use fiber polymer (FRP) rebars a promising solution to handle problems steel reinforcement corrosion. This study investigates characteristics carbon aramid FRP (CFRP AFRP) embedded normal strength concrete. A pullout test was performed on 63 specimens with different embedment lengths bar diameters. average stress versus slip curve plotted for all their failure modes are...