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| WoS | SCOPUS | Document Type | Document Title | Abstract | Authors | Affiliation | ResearcherID (WoS) | AuthorsID (SCOPUS) | Author Email(s) | Journal Name | JCR Abbreviation | ISSN | eISSN | Volume | Issue | WoS Edition | WoS Category | JCR Year | IF | JCR (%) | FWCI | FWCI Update Date | WoS Citation | SCOPUS Citation | Keywords (WoS) | KeywordsPlus (WoS) | Keywords (SCOPUS) | KeywordsPlus (SCOPUS) | Language | Publication Stage | Publication Year | Publication Date | DOI | JCR Link | DOI Link | WOS Link | SCOPUS Link |
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| ○ | ○ | Article | Assessment of Pohang Earthquake-Induced Liquefaction at Youngil-Man Port Using the UBCSAND2 Model | The practical constitutive model UBCSAND2, which combines two-mobilized planes-a maximum shear stress plane and a horizontal plane within a framework of classical plasticity approach-is used to incorporate shear-induced effects in both loading and unloading as well as principal stress rotation effects. UBCSAND2 was calibrated by capturing cyclic direct simple shear (CDSS) test results of Pohang sand, which was collected from liquefied paddy fields due to the 2017 Pohang earthquake (M-w= 5.4) in South Korea. The model procedure focuses on simple shear condition because it best simulates field conditions under earthquake loading. The calibrated UBCSAND2 model is then used to assess the liquefaction-induced damages that occurred at the quay wall and backfill layer in Youngil-man port near the epicenter of the Pohang earthquake. The numerical results show that liquefaction mostly occurred in silty sand layers, in which the excess pore pressure ratio reached almost one. The estimated displacements of the quay wall and the predicted settlement of reclaimed area obtained from the analysis were in good agreement with those obtained from field measurements. | Doan, Nhat-Phi; Park, Sung-Sik; Lee, Dong-Eun | Kyungpook Natl Univ, Dept Civil Engn, 80 Daehakro, Bukgu 41566, Daegu, South Korea; Kyungpook Natl Univ, Sch Architecture Civil Environm & Energy, 80 Daehakro, Bukgu 41566, Daegu, South Korea | Doan, Nhat-Phi/IAM-1883-2023; DOAN, NHAT-PHI/IAM-1883-2023 | 58095587400; 36241850300; 56605563300 | phidoan@knu.ac.kr;sungpark@knu.ac.kr;dolee@knu.ac.kr; | APPLIED SCIENCES-BASEL | APPL SCI-BASEL | 2076-3417 | 10 | 16 | SCIE | CHEMISTRY, MULTIDISCIPLINARY;ENGINEERING, MULTIDISCIPLINARY;MATERIALS SCIENCE, MULTIDISCIPLINARY;PHYSICS, APPLIED | 2020 | 2.679 | 41.7 | 0.54 | 2025-06-25 | 9 | 11 | sand; liquefaction; constitutive model; effective stress; Pohang earthquake; Youngil-man port | CENTRIFUGE; DEFORMATIONS; KOREA | Constitutive model; Effective stress; Liquefaction; Pohang earthquake; Sand; Youngil-man port | English | 2020 | 2020-08 | 10.3390/app10165424 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Assessment of Strength Development at Hardened Stage on High-Strength Concrete Using NDT | This study proposes model formulae for predicting the strength of concrete by analyzing the relationships between the results of nondestructive testing (NDT) methods and the compressive strength of concrete specimens at the hardened stage. Further, NDT of concrete molds and mock-up specimens was conducted using NDT methods (rebound hammer, ultrasonic pulse velocity). The water/cement (W/C) ratios were set to 0.48, 0.41, and 0.33 to achieve concrete strengths within the compressive strength range of 24-60 MPa. The evaluation parameters included the fresh concrete properties, compressive strength (mold and core), temperature history, maturity, rebound value, and ultrasonic pulse velocity. Evaluation results indicated that the reliability of existing models, based on the rebound and ultrasonic pulse velocity, is significantly low on high-strength concrete of 40 MPa or higher, and cannot satisfy the +/- 20% error range. Consequently, this study proposes a regression equation of the concrete strength based on the experimental rebound and ultrasonic pulse velocity values in a 24-60 MPa range, which offers satisfactory reliability. | Lee, Taegyu; Lee, Jaehyun; Choi, Hyeonggil | Semyung Univ, Dept Fire & Disaster Prevent, 65 Semyung Ro, Jecheon Si 27136, Choongbuk, South Korea; Seoul Natl Univ Sci & Technol, Dept Safety Engn, 232 Gongneung Ro, Seoul 01811, South Korea; Kyungpook Natl Univ, Sch Architecture Civil Environm & Energy Engn, Daegu 41566, South Korea | ; Lee, Jaehyun/ABB-9148-2020 | 7501437272; 57211397021; 56430165800 | ltg777@semyung.ac.kr;archi0528@seoultech.ac.kr;hgchoi@knu.ac.kr; | APPLIED SCIENCES-BASEL | APPL SCI-BASEL | 2076-3417 | 10 | 18 | SCIE | CHEMISTRY, MULTIDISCIPLINARY;ENGINEERING, MULTIDISCIPLINARY;MATERIALS SCIENCE, MULTIDISCIPLINARY;PHYSICS, APPLIED | 2020 | 2.679 | 41.7 | 0.7 | 2025-06-25 | 15 | 16 | compressive strength; rebound value; ultrasonic pulse velocity; high-strength concrete; reliability; regression equation | ULTRASONIC PULSE VELOCITY; COMPRESSIVE STRENGTH; REBOUND HAMMER; VARIABILITY | Compressive strength; High-strength concrete; Rebound value; Regression equation; Reliability; Ultrasonic pulse velocity | English | 2020 | 2020-09 | 10.3390/app10186261 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Building Energy an Simulation Model for Analyzing Energy Saving Options of Multi-Span Greenhouses | This study proposes a multi-span greenhouse Building Energy Simulation (BES) model using a Transient System Simulation (TRNSYS)-18 program. A detailed BES model was developed and validated to simulate the thermal environment in the greenhouse under different design parameters for the multi-span greenhouse. Validation of the model was carried out by comparing the results from computed and experimental greenhouse internal temperatures. The statistical analyses produced an R-2 value of 0.84, a root mean square error (RMSE) value of 1.8 degrees C, and a relative (r)RMSE value of 6.7%, showing good agreement between computed and experimental results. The validated proposed BES model was used to evaluate the effect of multi-span greenhouse design parameters including thermal screens, number of screens, orientation, covering materials, double glazing, north-wall insulation, roof geometry, and natural ventilation, on the annual energy demand of the greenhouse, subjected to Taean Gun (latitude 36.88 degrees N, longitude 126.24 degrees E), Chungcheongnam-do, South Korea winter and summer season weather conditions. Additionally, the proposed BES model is capable of evaluating multi-span greenhouse design parameters with daily and seasonal dynamic control of thermal and shading screens, natural ventilation, as well as heating and cooling set-points. The TRNSYS 18 program proved to be highly flexible for carrying out simulations under local weather conditions and user-defined design and control of the greenhouse. The statistical analysis of validated results should encourage the adoption of the proposed model when the underlying aim is to evaluate the design parameters of multi-span greenhouses considering local weather conditions and specific needs. | Rasheed, Adnan; Kwak, Cheul Soon; Kim, Hyeon Tae; Lee, Hyun Woo | Kyungpook Natl Univ, Dept Agr Engn, Daegu 41566, South Korea; Culti Labs CO LTD, Smart Farm Syst Dept, Kangnung 25440, South Korea; Gyeongsang Natl Univ, Inst Agr & Life Sci, Dept Bioind Machinery Engn, Jinju 52828, South Korea; Kyungpook Natl Univ, Inst Agr Sci & Technol, Daegu 41566, South Korea; Kyungpook Natl Univ, Smart Agr Innovat Ctr, Daegu 41566, South Korea | ; Rasheed, Adnan/ABE-6624-2021 | 56080100700; 51665252000; 8662923200; 57209160180 | adnanrasheed@knu.ac.kr;cskwak@cultilabs.com;bioani@gnu.ac.kr;whlee@knu.ac.kr; | APPLIED SCIENCES-BASEL | APPL SCI-BASEL | 2076-3417 | 10 | 19 | SCIE | CHEMISTRY, MULTIDISCIPLINARY;ENGINEERING, MULTIDISCIPLINARY;MATERIALS SCIENCE, MULTIDISCIPLINARY;PHYSICS, APPLIED | 2020 | 2.679 | 41.7 | 1.01 | 2025-06-25 | 17 | 17 | greenhouse modeling; energy demand; thermal screen; shading screen | SOLAR-ENERGY; DESIGN; CONSERVATION; ORIENTATION | Energy demand; Greenhouse modeling; Shading screen; Thermal screen | English | 2020 | 2020-10 | 10.3390/app10196884 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Challenging the Resin-Zirconia Interface by Thermal Cycling or Mechanical Load Cycling or Their Combinations | The purpose of this in vitro study was to evaluate the influence of mechanical load cycling (MLC), which simulated mastication, alone or combined with thermal cycling (TC), on the resin shear bond strength (SBS) to zirconia. Two resin cements (Panavia F2.0 and RelyX U200) were bonded (bonding area: 2.38 mm) to air-abraded zirconia (Everest ZS-Ronde). The specimens were subjected to SBS test before and after TC (5000 cycles), MLC (5000 cycles in 37 degrees C water), TC/MLC, or MLC/TC aging (n = 15). Before SBS test, the mechanical and physical properties of the two resin cements were studied (n = 5). For both resins, unlike TC (p > 0.05), the three MLC-containing aging conditions significantly decreased the SBS values when compared to the non-aged condition (p < 0.05). In the case of MLC-only aging, RelyX U200, with significantly higher hydrophobicity (p = 0.004), showed a significantly higher SBS value than Panavia F2.0 (p = 0.035). The MLC aging-containing groups showed increased occurrence of mixed failure. The application of MLC combined with TC may more closely simulate intraoral conditions. | Kwon, Sung-Min; Kim, Young Kyung; Kwon, Tae-Yub | Kyungpook Natl Univ, Grad Sch, Dept Med & Biol Engn, 2177 Dalgubeol Daero, Daegu 41940, South Korea; Kyungpook Natl Univ, Sch Dent, Dept Conservat Dent, 2177 Dalgubeol Daero, Daegu 41940, South Korea; Kyungpook Natl Univ, Dept Dent Biomat, Sch Dent, 2177 Dalgubeol Daero, Daegu 41940, South Korea; Kyungpook Natl Univ, Inst Biomat Res & Dev, 2177 Dalgubeol Daero, Daegu 41940, South Korea | 56949626400; 56017868900; 7202206084 | sungmin@knu.ac.kr;wisekim@knu.ac.kr;tykwon@knu.ac.kr; | APPLIED SCIENCES-BASEL | APPL SCI-BASEL | 2076-3417 | 10 | 20 | SCIE | CHEMISTRY, MULTIDISCIPLINARY;ENGINEERING, MULTIDISCIPLINARY;MATERIALS SCIENCE, MULTIDISCIPLINARY;PHYSICS, APPLIED | 2020 | 2.679 | 41.7 | 0.08 | 2025-06-25 | 2 | 2 | bonding durability; mechanical load cycling; thermal cycling; zirconia | MICROTENSILE BOND STRENGTH; CEMENTS; DURABILITY; PORCELAIN; HYDROPHILICITY; ADHESION; DENTIN; METAL | Bonding durability; Mechanical load cycling; Thermal cycling; Zirconia | English | 2020 | 2020-10 | 10.3390/app10207352 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||||
| ○ | ○ | Article | CNN-Based Illumination Estimation with Semantic Information | For more than a decade, both academia and industry have focused attention on the computer vision and in particular the computational color constancy (CVCC). The CVCC is used as a fundamental preprocessing task in a wide range of computer vision applications. While our human visual system (HVS) has the innate ability to perceive constant surface colors of objects under varying illumination spectra, the computer vision is facing the color constancy challenge in nature. Accordingly, this article proposes novel convolutional neural network (CNN) architecture based on the residual neural network which consists of pre-activation, atrous or dilated convolution and batch normalization. The proposed network can automatically decide what to learn from input image data and how to pool without supervision. When receiving input image data, the proposed network crops each image into image patches prior to training. Once the network begins learning, local semantic information is automatically extracted from the image patches and fed to its novel pooling layer. As a result of the semantic pooling, a weighted map or a mask is generated. Simultaneously, the extracted information is estimated and combined to form global information during training. The use of the novel pooling layer enables the proposed network to distinguish between useful data and noisy data, and thus efficiently remove noisy data during learning and evaluating. The main contribution of the proposed network is taking CVCC to higher accuracy and efficiency by adopting the novel pooling method. The experimental results demonstrate that the proposed network outperforms its conventional counterparts in estimation accuracy. | Choi, Ho-Hyoung; Kang, Hyun-Soo; Yun, Byoung-Ju | Kyungpook Natl Univ, Sch Dent, Adv Dent Device Dev Inst, 2177 Dalgubeol Daero, Daegu 41940, South Korea; Chungbuk Natl Univ, Coll Elect & Comp Engn, Sch Informat & Commun Engn, 1 Chungdae Ro, Cheongju 28644, Chungcheongbuk, South Korea; Kyungpook Natl Univ, Sch Elect Engn, IT Coll, 80 Daehak Ro, Daegu 41566, South Korea | 37048369000; 35332572200; 7006416932 | chhman2000@msn.com;hskang@cbnu.ac.kr;bjisyun@ee.knu.ac.kr; | APPLIED SCIENCES-BASEL | APPL SCI-BASEL | 2076-3417 | 10 | 14 | SCIE | CHEMISTRY, MULTIDISCIPLINARY;ENGINEERING, MULTIDISCIPLINARY;MATERIALS SCIENCE, MULTIDISCIPLINARY;PHYSICS, APPLIED | 2020 | 2.679 | 41.7 | 1.09 | 2025-06-25 | 16 | 16 | human visual system (HVS); color constancy; residual neural network; semantic information; local and global information; image dataset | COLOR CONSTANCY; CHROMATICITY | Color constancy; Human visual system (HVS); Image dataset; Local and global information; Residual neural network; Semantic information | English | 2020 | 2020-07 | 10.3390/app10144806 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||||
| ○ | ○ | Article | Combined numerical and experimental study to predict the forming limit curve of boron steel sheets at elevated temperatures | The aim of this study involved evaluating and predicting forming limit curves of boron steel 22MnB5 sheet at elevated temperatures. A finite-element method simulation was adopted based on ductile fracture criteria and simple experiments at elevated temperatures. First, tensile experimental data and ductile fracture criterions of Johnson-Cook and ductile void growth models were input to ABAQUS/Explicit software to predict and compare the same with fracture occurrence in experiments performed via Hecker's punch stretching tests at room temperature. Subsequently, punch stretching test data at room temperature were added to correct the fracture strain locus in the space of the stress triaxiality and the equivalent strain following the ductile void growth model. After confirming the accuracy of the forming limit curve prediction at room temperature, fracture strain loci at high temperatures using ductile void growth model were determined based on the average ratio between the fracture equivalent plastic strains at room temperature as well as higher temperatures. Finally, Hecker's punch stretching tests were numerically simulated to predict forming limit curve(s) of boron steel 22MnB5 sheet at high temperatures. | Nguyen Duc-Toan; Young-Suk, Kim | Hanoi Univ Sci & Technol, Sch Mech Engn, 1A Dai Co Viet St, Hanoi 10000, Vietnam; Kyungpook Natl Univ, Dept Mech Engn, Daegu, South Korea | Nguyen, Duc-Toan/B-1029-2016 | 36805657000; 36807349200 | toan.nguyenduc@hust.edu.vn; | PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART B-JOURNAL OF ENGINEERING MANUFACTURE | P I MECH ENG B-J ENG | 0954-4054 | 2041-1975 | 234 | 1-2 | SCIE | ENGINEERING, MANUFACTURING;ENGINEERING, MECHANICAL | 2020 | 2.61 | 41.7 | 0.51 | 2025-06-25 | 9 | 9 | Forming limit curve; Hecker's punch stretching tests; finite-element method; ductile fracture criteria; high temperature; boron steel sheet | HIGH-STRENGTH STEEL; IMPROVE PRESS FORMABILITY; FINITE-ELEMENT-METHOD; FRACTURE CHARACTERISTICS; MODEL; SIMULATION; 22MNB5; BEHAVIOR; SHAPE | boron steel sheet; ductile fracture criteria; finite-element method; Forming limit curve; Hecker’s punch stretching tests; high temperature | ABAQUS; Aluminum sheet; Ductile fracture; Finite element method; Forecasting; Manganese alloys; Microalloyed steel; Software testing; Steel sheet; Strain; Stretching; Boron steel sheets; Ductile fracture criterion; Forming limit curve; High temperature; Punch stretching; Stretch Forming | English | 2020 | 2020-01 | 10.1177/0954405419843783 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |
| ○ | ○ | Article | Complete Evaluation of Cell Mixing and Hydrodynamic Performance of Thin-Layer Cascade Reactor | Microalgae are a great source of food and supplements as well as a potential source for the production of biofuels. However, the operational cost must be reduced to allow viable productions of bulk chemicals such as biofuels from microalgae. One approach to minimize the cost is to increase the efficiency of the photobioreactor. Photobioreactor efficiency is correlated to hydrodynamic mixing, which promotes single cell exposure to sunlight, keeps algae cells in suspension, and homogenizes the distribution of nutrients. Thus, a possible route to enhance the efficiency of the photobioreactor can be identified through an improved understanding of the mixing phenomenon. Therefore, for the current thin-layer cascade reactor, two aspects of its performance-namely, cell mixing and hydrodynamic characteristics-are evaluated under varying mass flow rates, slope angles, water depths, and aspect ratios of the channel by using computational fluid dynamics. The resulting model is validated with experimental data. Results reveal that limited cell mixing is achieved in the thin-layer cascade reactor with increased water depth and large aspect ratios. However, cell mixing is significantly increased at high mass flow rates. The increase in the mass flow rate and slope angle results in increased flow velocity and power consumption. | Akhtar, Shehnaz; Ali, Haider; Park, Cheol Woo | Kyungpook Natl Univ, Sch Mech Engn, 80 Daehakro, Daegu 41566, South Korea; Norwegian Univ Sci & Technol, Dept Chem Engn, NO-7491 Trondheim, Norway | Ali, Haider/H-4059-2017; Akhtar, Shehnaz/IST-0523-2023 | 57202696797; 59272327100; 7408416474 | shehnazakhtar073@gmail.com;haider.ali@ntnu.no;chwoopark@knu.ac.kr; | APPLIED SCIENCES-BASEL | APPL SCI-BASEL | 2076-3417 | 10 | 3 | SCIE | CHEMISTRY, MULTIDISCIPLINARY;ENGINEERING, MULTIDISCIPLINARY;MATERIALS SCIENCE, MULTIDISCIPLINARY;PHYSICS, APPLIED | 2020 | 2.679 | 41.7 | 0.31 | 2025-06-25 | 6 | 6 | microalgae; thin layer cascade reactor; residence time; power consumption; cell mixing | WASTE-WATER; PHOTOBIOREACTORS; PHOTOSYNTHESIS; PRODUCTIVITY; HYDRAULICS; MICROALGAE; GROWTH; DESIGN | Cell mixing; Microalgae; Power consumption; Residence time; Thin layer cascade reactor | English | 2020 | 2020-02 | 10.3390/app10030746 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Computer-Based 3D Simulation Method in Dental Occlusion Education: Student Response and Learning Effect | Occlusion is a fundamental subject in dental education, and occlusal adjustment is clinically essential in daily dental practices. This study aimed to assess the effects of computer-based 3D simulations on learner responses and learning effect on the principles of occlusal adjustment in undergraduate dental students in comparison with the traditional approach. Two teaching methods, i.e., paper-based 2D presentation and computer-based 3D simulation, were used for teaching the occlusal adjustment concepts. Sixty dental students were divided into two groups using a pair-matching randomization method. In the 2D presentation group, a textbook with 2D illustrations was used. 3D graphic dental models and computer design software were applied in the 3D simulation group. After the course, an attitudinal survey and examination were conducted to evaluate the participants' feedback and the learning effects resulting from the teaching methods. The independentttest was used to compare the test scores between groups (with alpha = 0.5). Pearson's correlation coefficient was calculated to investigate the agreement between the survey data and test scores. Most of the students' feedback indicated that the 3D simulation method would be effective in acquiring knowledge on occlusion and jaw movement. The examination scores were significantly higher in the 3D simulation group compared with those in the 2D presentation group in the questions for centric relation (P= 0.034). Conversely, the scores were insignificant in the questions for eccentric relation (P= 0.403). There was no correlation observed between the survey data and the actual examination score. Computer-based 3D simulation could increase the participants' expectations and learning effects in dental occlusion education. Further studies in diversified learning environments are required on the efficacy of digital educational modality. | Mai, Hai Yen; Mai, Hang-Nga; Lee, Du-Hyeong | Kyungpook Natl Univ, Sch Dent, Dept Prosthodont, Daegu 41940, South Korea; Kyungpook Natl Univ, Inst Translat Res Dent, Daegu 41940, South Korea | ; Mai, Hang-Nga/Q-9865-2018 | 57217872800; 56964780900; 35770948000 | maihaiyen@knu.ac.kr;maihangnga1403@knu.ac.kr;deweylee@knu.ac.kr; | APPLIED SCIENCES-BASEL | APPL SCI-BASEL | 2076-3417 | 10 | 17 | SCIE | CHEMISTRY, MULTIDISCIPLINARY;ENGINEERING, MULTIDISCIPLINARY;MATERIALS SCIENCE, MULTIDISCIPLINARY;PHYSICS, APPLIED | 2020 | 2.679 | 41.7 | 0.31 | 2025-06-25 | 4 | 4 | computer software; dental occlusion; learner response; learning effect; occlusal adjustment; simulation; three dimensions; visualization | PERFORMANCE | Computer software; Dental occlusion; Learner response; Learning effect; Occlusal adjustment; Simulation; Three dimensions; Visualization | English | 2020 | 2020-09 | 10.3390/app10176073 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Contrast Sensitivity Based Multiscale Base-Detail Separation for Enhanced HDR Imaging | High dynamic range (HDR) imaging is used to represent scenes with a greater dynamic range of luminance on a standard dynamic range display. Usually, HDR images are synthesized through base-detail separations. The base layer is used for tone compression and the detail layer is used for detail preservation. The representative detail-preserved algorithm iCAM06 has a tendency to reduce the sharpness of dim surround images, because of the fixed edge-stopping function of the fast-bilateral filter (FBF). This paper proposes a novel base-detail separation and detail compensation technique using the contrast sensitivity function (CSF) in the segmented frequency domain. Experimental results show that the proposed rendering method has better sharpness features and image quality than previous methods correlated by the human visual system. | Kwon, Hyuk-Ju; Lee, Sung-Hak | Kyungpook Natl Univ, Sch Elect Engn, 80 Daehak Ro, Daegu 41566, South Korea | 55169908300; 7601395661 | olin1223@ee.knu.ac.kr;shak2@ee.knu.ac.kr; | APPLIED SCIENCES-BASEL | APPL SCI-BASEL | 2076-3417 | 10 | 7 | SCIE | CHEMISTRY, MULTIDISCIPLINARY;ENGINEERING, MULTIDISCIPLINARY;MATERIALS SCIENCE, MULTIDISCIPLINARY;PHYSICS, APPLIED | 2020 | 2.679 | 41.7 | 0.31 | 2025-06-25 | 6 | 6 | HDR image; iCAM06; bilateral filter; base-detail separation | MODEL; COMPENSATION | Base-detail separation; Bilateral filter; HDR image; ICAM06 | English | 2020 | 2020-04 | 10.3390/app10072513 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||||
| ○ | ○ | Article | Damping and Natural Period Evaluation of Tall RC Buildings Using Full-Scale Data in Korea | In recent years, the main usage of reinforced concrete (RC) structures in Korea has shifted from low-rise residential and commercial buildings to high-rise buildings. Because an increasing number of high-rise RC buildings are being built, especially in coastal cities, which are periodically hit by typhoons, wind-induced motion and the corresponding serviceability issues have attracted considerable attention. Natural period and damping ratio are the most important factors for estimating the design wind load and wind-induced response in the design of tall buildings. However, the Korean Building Code (KBC 2009) does not specify empirical formulae for estimating the natural period and damping ratio for wind design, unlike seismic design. In this study, the damping ratio and natural period of existing concrete buildings in Korea are measured and compared to those obtained using the formulae provided in various codes and research works. Furthermore, design formulae for estimating natural frequency and damping ratio for wind design are proposed based on the measured data. For this purpose, ambient vibration measurement is performed for 58 RC buildings with heights of 24.2-305 m. | Ha, Taehyu; Shin, Seung-Hoon; Kim, Hongjin | POSCO Global R&D Ctr, Incheon 21985, South Korea; Kyungpook Natl Univ, Dept Architectural Engn, Daegu 41566, South Korea | 55750057000; 57194858523; 56278546400 | hath@posco.com;sshin@posco.com;hjk@knu.ac.kr; | APPLIED SCIENCES-BASEL | APPL SCI-BASEL | 2076-3417 | 10 | 5 | SCIE | CHEMISTRY, MULTIDISCIPLINARY;ENGINEERING, MULTIDISCIPLINARY;MATERIALS SCIENCE, MULTIDISCIPLINARY;PHYSICS, APPLIED | 2020 | 2.679 | 41.7 | 0.78 | 2025-06-25 | 17 | 21 | natural period; damping ratio; RC buildings; full-scale data; system identification; wind design | VIBRATION; IDENTIFICATION; MODELS | Damping ratio; Full-scale data; Natural period; Rc buildings; System identification; Wind design | English | 2020 | 2020-03 | 10.3390/app10051568 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||||
| ○ | ○ | Article | Data-Driven Knowledge-Based System for Self-Measuring Activities of Daily Living in IoT-Based Test | This paper proposes a data-driven knowledge-based system with which aged people can measure the degree of activities of daily living (ADL) by themselves. The proposed system, called E-coach for ADL Test (EAT), provides participants with self-measurement procedures, using e-coaching, which is a guidance mechanism to lead the participants from an initial stage to a target goal. The EAT traces the behavior of the participants to gather ADL data that tell how well they perform the given e-coaching. Driven by the Internet of Things data, the knowledge-based inference of the EAT carries out the e-coaching mechanism that figures out what state the self-measurement procedures stay on and what guidance is necessary for the next state. The EAT ensures that all the procedures for ADL measurement are executed automatically without any help from medical professionals. The experiment described in this paper demonstrates that the EAT distinguishes between dementia patients and normal people. The measurement report assists medical doctors in the diagnosis of certain medical conditions that these people may have. | Shin, Youngsul; Park, Yu Jin; Kang, Soon Ju | Kyungpook Natl Univ, Ctr Self Organizing Software, 80 Daehakro, Daegu 41566, South Korea; Kyungpook Natl Univ, Sch Elect Engn, Coll IT Engn, 80 Daehakro, Daegu 41566, South Korea | 55308613400; 55494454700; 55666313900 | youngsulshin@gmail.com;ilbsyjp@gmail.com;sjkang@ee.knu.ac.kr; | APPLIED SCIENCES-BASEL | APPL SCI-BASEL | 2076-3417 | 10 | 14 | SCIE | CHEMISTRY, MULTIDISCIPLINARY;ENGINEERING, MULTIDISCIPLINARY;MATERIALS SCIENCE, MULTIDISCIPLINARY;PHYSICS, APPLIED | 2020 | 2.679 | 41.7 | 0.31 | 2025-06-25 | 3 | 4 | data-driven knowledge-based inference; ADL self-measurement; Internet of Things; E-coaching | QUALITY-OF-LIFE; DEMENTIA | ADL self-measurement; Data-driven knowledge-based inference; E-coaching; Internet of things | English | 2020 | 2020-07 | 10.3390/app10144972 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||||
| ○ | ○ | Article | Deep Learning Entrusted to Fog Nodes (DLEFN) Based Smart Agriculture | Colossal amounts of unstructured multimedia data are generated in the modern Internet of Things (IoT) environment. Nowadays, deep learning (DL) techniques are utilized to extract useful information from the data that are generated constantly. Nevertheless, integrating DL methods with IoT devices is a challenging issue due to their restricted computational capacity. Although cloud computing solves this issue, it has some problems such as service delay and network congestion. Hence, fog computing has emerged as a breakthrough way to solve the problems of using cloud computing. In this article, we propose a strategy that assigns a portion of the DL layers to fog nodes in a fog-computing-based smart agriculture environment. The proposed deep learning entrusted to fog nodes (DLEFN) algorithm decides the optimal layers of DL model to execute on each fog node, considering their available computing capacity and bandwidth. The DLEFN individually calculates the optimal layers for each fog node with dissimilar computational capacities and bandwidth. In a similar experimental environment, comparison results clearly showed that proposed method accommodated more DL application than other existing assignment methods and utilized resources efficiently while reducing network congestion and processing burden on the cloud. | Lee, Kyuchang; Silva, Bhagya Nathali; Han, Kijun | Kyungpook Natl Univ, Sch Comp Sci & Engn, Daegu 41566, South Korea | Silva, Bhagya/AAW-1014-2021 | 57213678506; 57192304387; 7402963670 | skynsoul@knu.ac.kr;nathalis@netopia.knu.ac.kr;kjhan@knu.ac.kr; | APPLIED SCIENCES-BASEL | APPL SCI-BASEL | 2076-3417 | 10 | 4 | SCIE | CHEMISTRY, MULTIDISCIPLINARY;ENGINEERING, MULTIDISCIPLINARY;MATERIALS SCIENCE, MULTIDISCIPLINARY;PHYSICS, APPLIED | 2020 | 2.679 | 41.7 | 1.63 | 2025-06-25 | 17 | 29 | fog computing; deep learning; layer definition algorithm; smart agriculture | EDGE; INTERNET; THINGS | Deep learning; Fog computing; Layer definition algorithm; Smart agriculture | English | 2020 | 2020-02 | 10.3390/app10041544 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | Article | Development and application of motor-equipped reaction torque sensor with adjustable measurement range and sensitivity | Various high-performance force/torque sensors have been developed for the purpose of advancing automation systems. However, the demand for simple torque measurement of rotating shafts continues to exist, and expensive multi-axis sensors need not be wasted here. In this paper we propose a simple motor-equipped single-axis reaction torque sensor to measure the applied torque continuously using a load cell. The proposed sensor has long lever and base linkages, and the adjustable moment arm consequently enables adjusting measurement range and sensitivity by repositioning the assembled load cell on the two linkages. This paper shows the design of the proposed torque sensor, and it is evaluated by experiments for various applied torque and lever length. Moreover, the sensor is applied to an existing example: a commercial balanced-arm lamp with and without its balancing spring. The proposed torque sensor can continuously and successfully measure the applied torque, and it will be utilized in various industries and laboratories without much money. © 2020 by the authors. Licensee MDPI, Basel, Switzerland. | Suh, Jungwook; Lee, Joonwoo; Lee, Dong-Eun | Department of Robot and Smart System Engineering, Kyungpook National University (KNU), Daegu, 41566, South Korea; Department of Robot and Smart System Engineering, Kyungpook National University (KNU), Daegu, 41566, South Korea, Department of Electrical Engineering, Kyungpook National University (KNU), Daegu, 41566, South Korea; School of Architecture, Civil, Environment and Energy, Kyungpook National University (KNU), Daegu, 41566, South Korea | 36606826500; 57209469100; 56605563300 | jwsuh@knu.ac.kr; | Applied Sciences (Switzerland) | APPL SCI-BASEL | N/A | 2076-3417 | 10 | 24 | SCIE | CHEMISTRY, MULTIDISCIPLINARY;ENGINEERING, MULTIDISCIPLINARY;MATERIALS SCIENCE, MULTIDISCIPLINARY;PHYSICS, APPLIED | 2020 | 2.679 | 41.7 | 0 | 2025-06-25 | 2 | Load cell; Measurement range; Moment arm; Sensitivity; Torque sensor | English | Final | 2020 | 10.3390/app10248770 | 바로가기 | 바로가기 | 바로가기 | ||||||||
| ○ | ○ | Article | Development of a Natural Matrix Hybrid Hydrogel Patch and Evaluation of Its Efficacy against Atopic Dermatitis | Although there is no cure for atopic dermatitis (AD), treatments to relieve AD symptoms are available. A previously developed topical patch for AD treatment minimizes skin irritation but does not sufficiently adhere and absorb to specific areas. Centella asiatica extract (CAE) is a natural polymer for atopic treatment. This study fabricated a CAE-loaded hyaluronic acid-dextran (HA-Dex) hybrid hydrogel patch for use as an AD treatment and evaluated the effect of varying CAE concentrations in the patch. The CAE-loaded HA-Dex hybrid hydrogel patch was fabricated into a sheet-type scaffold using a freeze-drying process and 1,4-butanediol diglycidyl ether (BDDE). Fibroblasts (L929 cells) were used to evaluate cell survival, and physical properties were evaluated using Fourier transform infrared spectroscopy, field emission scanning electron microscopy, a universal testing machine, and high-performance liquid chromatography. A 0.4 wt% CAE-loaded HA-Dex hybrid hydrogel patch produced the most stable release profile and the highest level of cellular activity. These hydrogel patches provided moisture and released CAE over an extended period of time, making them ideal for relieving atopic itching. This delivery system enables the extended release of CAE to localized areas and could potentially be used to apply a variety of products to treat AD. | Hong, Gyeong Sik; Choi, Jeong Yeon; Suh, Jang Soo; Lim, Jeong Ok; Choi, Jin Hyun | Kyungpook Natl Univ, Dept Biofibers & Biomat Sci, Daegu 41566, South Korea; Korea Inst Ind Technol KITECH, Safety Syst R&D Grp, Daegu 42994, South Korea; Kyungpook Natl Univ, Kyungpook Natl Univ Hosp, Dept Lab Med, Sch Med, Daegu 41944, South Korea; Kyungpook Natl Univ, Kyungpook Natl Univ Hosp, Biomed Res Inst, Joint Inst Regenerat Med,Sch Med, Daegu 41944, South Korea | 57203744167; 56126683400; 57201729629; 7403454245; 36076723600 | gshong0625@naver.com;jychoi77@kitech.re.kr;suhjs@knu.ac.kr;jolim@knu.ac.kr;jinhchoi@knu.ac.kr; | APPLIED SCIENCES-BASEL | APPL SCI-BASEL | 2076-3417 | 10 | 23 | SCIE | CHEMISTRY, MULTIDISCIPLINARY;ENGINEERING, MULTIDISCIPLINARY;MATERIALS SCIENCE, MULTIDISCIPLINARY;PHYSICS, APPLIED | 2020 | 2.679 | 41.7 | 0.16 | 2025-06-25 | 6 | 6 | atopic dermatitis treatment; hydrogel patch; hyaluronic acid; dextran; Centella asiatica extract | Atopic dermatitis treatment; Centella asiatica extract; Dextran; Hyaluronic acid; Hydrogel patch | English | 2020 | 2020-12 | 10.3390/app10238759 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||||
| ○ | ○ | Article | Development of Computer-Aided Semi-Automatic Diagnosis System for Chronic Post-Stroke Aphasia Classification with Temporal and Parietal Lesions: A Pilot Study | Survivors of either a hemorrhagic or ischemic stroke tend to acquire aphasia and experience spontaneous recovery during the first six months. Nevertheless, a considerable number of patients sustain aphasia and require speech and language therapy to overcome the difficulties. As a preliminary study, this article aims to distinguish aphasia caused from a temporoparietal lesion. Typically, temporal and parietal lesions cause Wernicke's aphasia and Anomic aphasia. Differential diagnosis between Anomic and Wernicke's has become controversial and subjective due to the close resemblance of Wernicke's to Anomic aphasia when recovering. Hence, this article proposes a clinical diagnosis system that incorporates normal coupling between the acoustic frequencies of speech signals and the language ability of temporoparietal aphasias to delineate classification boundary lines. The proposed inspection system is a hybrid scheme consisting of automated components, such as confrontation naming, repetition, and a manual component, such as comprehension. The study was conducted involving 30 participants clinically diagnosed with temporoparietal aphasias after a stroke and 30 participants who had experienced a stroke without aphasia. The plausibility of accurate classification of Wernicke's and Anomic aphasia was confirmed using the distinctive acoustic frequency profiles of selected controls. Accuracy of the proposed system and algorithm was confirmed by comparing the obtained diagnosis with the conventional manual diagnosis. Though this preliminary work distinguishes between Anomic and Wernicke's aphasia, we can claim that the developed algorithm-based inspection model could be a worthwhile solution towards objective classification of other aphasia types. | Silva, Bhagya Nathali; Khan, Murad; Wijesinghe, Ruchire Eranga; Thelijjagoda, Samantha; Han, Kijun | Kyungpook Natl Univ, Sch Comp Sci & Engn, Daegu 41566, South Korea; Kyungil Univ, Coll Engn, Dept Biomed Engn, Gyeongsangbuk Do 38428, South Korea; Kyungil Univ, Coll Smart Engn, Dept Autonomous Robot Engn, Gyeongsangbuk Do 38428, South Korea; Sri Lanka Inst Informat Technol, Fac Comp, Malabe 10115, Sri Lanka | Wijesinghe, Ruchire/K-3797-2016; Khan, Murad/AAB-6060-2019; Silva, Bhagya/AAW-1014-2021 | 57192304387; 56151971600; 56018152300; 17343051500; 7402963670 | nathalis@netopia.knu.ac.kr;mkhan@knu.ac.kr;eranga@kiu.kr;samantha.t@sliit.lk;kjhan@knu.ac.kr; | APPLIED SCIENCES-BASEL | APPL SCI-BASEL | 2076-3417 | 10 | 8 | SCIE | CHEMISTRY, MULTIDISCIPLINARY;ENGINEERING, MULTIDISCIPLINARY;MATERIALS SCIENCE, MULTIDISCIPLINARY;PHYSICS, APPLIED | 2020 | 2.679 | 41.7 | 0.31 | 2025-06-25 | 5 | 5 | objective diagnosis; aphasia; hybrid aphasia diagnosis; acoustic frequency analysis | SPEECH; COMPREHENSION; APRAXIA | Acoustic frequency analysis; Aphasia; Hybrid aphasia diagnosis; Objective diagnosis | English | 2020 | 2020-02 | 10.3390/app10082984 | 바로가기 | 바로가기 | 바로가기 | 바로가기 |
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