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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 | Anion-Dependent Cu(II) Coordination Polymers: Geometric, Magnetic and Luminescent Properties | A one-dimensional (1D) coordination polymer [Cu-2(bpba)(CH3COO)(4)] (1) and a two-dimensional (2D) coordination polymer [Cu(bpba)(2)(H2O)(NO3)](NO3)center dot 2H(2)O center dot MeOH (2) were synthesized by the reaction between Cu(CH3COO)(2)center dot H2O/Cu(NO3)(2)center dot 3H(2)O and bis(4-pyridyl)benzylamine (bpba). The Cu(II) ions of 1 and 2 have distorted-square pyramidal coordination with a paddle-wheel structure and an octahedral geometry, respectively. By coordinating the Cu(II) ions and bpba ligands, 1 and 2 formed zigzag 1D and puckered 2D coordination polymers, respectively. Polymer 1 exhibits strong emissions at 355 and 466 nm, whereas polymer 2 exhibits strong emissions only at 464 nm. The emissions are strongly dependent on the geometry of the Cu(II) ions linked by the bpba and anionic ligands. Polymer 1 exhibits a very strong antiferromagnetic interaction within the paddle-wheel dimer, whereas polymer 2 exhibits a very weak antiferromagnetic interaction through the bpba linkers and/or space. | Ullah, Ihsan; Shin, Jong Won; Tokunaga, Ryuya; Hayami, Shinya; Shin, Hye Jin; Min, Kil Sik | Kyungpook Natl Univ, Dept Chem, Daegu 41566, South Korea; Kumamoto Natl Univ, Dept Chem, Kumamoto 8608555, Japan; Kyungpook Natl Univ, Dept Chem Educ, Daegu 41566, South Korea | Hayami, Shinya/Y-3354-2019; Hayami, Shinya/E-7019-2014 | 58829713600; 35314133900; 57877777400; 7006400078; 57217093676; 7201466885 | minks@knu.ac.kr; | CRYSTALS | CRYSTALS | 2073-4352 | 12 | 8 | SCIE | CRYSTALLOGRAPHY;MATERIALS SCIENCE, MULTIDISCIPLINARY | 2022 | 2.7 | 32.7 | 0.09 | 2025-06-25 | 1 | 1 | crystal engineering; coordination polymer; Cu(II) ion; photoluminescence; structure; magnetism | COPPER(II) COMPLEXES; CRYSTAL-STRUCTURE; PYRIDINE; LIGAND; IONS; PHOTOLUMINESCENCE; FRAMEWORKS; MOLECULES; SOLIDS | coordination polymer; crystal engineering; Cu(II) ion; magnetism; photoluminescence; structure | English | 2022 | 2022-08 | 10.3390/cryst12081096 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Digital Twin-Based Assessment Framework for Energy Savings in University Classroom Lighting | In this paper, a digital twin-based assessment framework is proposed to determine which energy-saving technologies and strategies will work best in existing buildings. The proposed framework is based on a digital twin that integrates the existing building's hardware system, the building's operational schedule database, and a probabilistic model of occupant behavior. A digital model was constructed based on field measurements and database integration for a case study involving nine university buildings and 55 classrooms. As a result, in the classrooms involved in the case study, the lighting was turned on in the absence of occupants for an average of 10.7 h a day. The results indicate that it is very important to turn off the lights after the last hour of use in university classrooms in South Korea and that it is possible to reduce power consumption by more than 60% by employing an off strategy involving a passive infrared sensor or manager. Additionally, LED lighting in most classrooms is over-designed, which indicates that 46% of the energy consumed can be saved by adjusting the luminance level to an appropriate range. | Seo, Hyuncheol; Yun, Woo-Seung | Kyungpook Natl Univ, Sch Architectural Civil Environm & Energy Engn, KS-002 Daegu, South Korea | Seo, Hyuncheol/ABC-5117-2020 | 56083741500; 57221104908 | charles@knu.ac.kr;bmqwe011@knu.ac.kr; | BUILDINGS | BUILDINGS-BASEL | 2075-5309 | 12 | 5 | SCIE | CONSTRUCTION & BUILDING TECHNOLOGY;ENGINEERING, CIVIL | 2022 | 3.8 | 32.7 | 4.5 | 2025-06-25 | 36 | 45 | digital twin; lighting system; energy savings; university classroom | CONTROL-SYSTEMS; DAYLIGHT; SCHOOL; EFFICIENCY; BUILDINGS; RETROFIT; PERFORMANCE; CONSUMPTION; SIMULATION; OFFICES | digital twin; energy savings; lighting system; university classroom | English | 2022 | 2022-05 | 10.3390/buildings12050544 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Exploring the appropriate test methods to examine the effects of firefighter personal protective equipment on mobility | This study aimed to ascertain the appropriate test methods for the investigation of the effect of personal protective equipment on mobility of firefighters. Nine male volunteers performed a physical performance test (crawl, obstacle course, side-to-side jumps, heavy-object drag, and step-ups), functional balance test (functional reach, timed up and go, and wooden plank time), range of motion test, and subjective evaluation under four clothing conditions with different weights and combinations of personal protective equipment. The results showed that physical performance, functional balance ability, and joint angles significantly declined with increased weight of personal protective equipment. On subjective evaluation, wearing heavy personal protective equipment increased perceived exertion and discomfort on movement. Our results proved that some of our test methods, including the obstacle course, side-to-side jumps, functional reach, timed up and go, range of motion test, and subjective evaluation, can be used to examine the mobility of personal protective equipment wearers. The findings of this study provide an effective guide for researchers and firefighters regarding the evaluation of mobility with personal protective equipment, as well as for manufacturers in the development of enhanced, comfortable personal protective equipment. | Son, Su-Young; Muraki, Satoshi; Tochihara, Yutaka | Kyungpook Natl Univ, Dept Home Econ Educ, Teachers Coll, 80 Daehak Ro, Daegu 41566, South Korea; Kyushu Univ, Fac Design, Dept Human Sci, 4-9-1,Shiobaru,Minami ku, Fukuoka 8158540, Japan | 54785259200; 7005632882; 7004132851 | sonsy@knu.ac.kr; | FASHION AND TEXTILES | FASH TEXT | 2198-0802 | 9 | 1 | SCIE | MATERIALS SCIENCE, TEXTILES | 2022 | 2.4 | 32.7 | 1.48 | 2025-06-25 | 8 | 10 | Firefighter; Personal protective equipment; Mobility; Physical performance; Functional balance ability; Range of motion | BALANCE | Firefighter; Functional balance ability; Mobility; Personal protective equipment; Physical performance; Range of motion | English | 2022 | 2022-07-15 | 10.1186/s40691-022-00295-8 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||||
| ○ | ○ | Editorial Material | Nano/Micro and Bio-Inspired Materials on Wide-Bandgap-Semiconductor-Based Optoelectronic/Power Devices | Reddy Mallem, Siva Pratap | Kyungpook Natl Univ, Sch Elect Engn, Daegu 41566, South Korea; Kyungpook Natl Univ, Sch Mat Sci & Engn, Daegu 41566, South Korea | 57210159801 | drmspreddy@knu.ac.kr; | CRYSTALS | CRYSTALS | 2073-4352 | 12 | 1 | SCIE | CRYSTALLOGRAPHY;MATERIALS SCIENCE, MULTIDISCIPLINARY | 2022 | 2.7 | 32.7 | 0.62 | 2025-06-25 | 0 | 1 | GAN | English | 2022 | 2022-01 | 10.3390/cryst12010067 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||||||
| ○ | ○ | Review | Research trends of the application of aerogel materials in clothing | This study investigated the application research of aerogel materials in clothing and analyzed the current research focus on aerogel clothing, the details of the development of aerogel materials, and the evaluation of the application effects of aerogel in clothing. Current research mainly focuses on the application of aerogel in firefighting clothing, space suits, wetsuits, and footwear products. The aerogel materials used in surveyed studies can be classified into aerogel fiber composite, aerogel foam composite, and aerogel coating fabric. Aerogel fiber composite is the most widely used aerogel material in the clothing industry. The thermal performance, mechanical properties, and comfort performance of aerogel clothing have been qualitatively discussed. This survey revealed that aerogel positively affects thermal performance of clothing. In addition, the mechanical properties such as the durability and strength of aerogel materials can meet the application requirements of clothing. However, the dust contamination hazard of aerogel particles limits the further application of aerogels in clothing. In addition, the experimental evaluation of the comfort performance of aerogel clothing through human- and manikin-wearing experiments is insufficient. The findings of this study reveal that it is essential to conduct further studies on the comfort performance of aerogel clothing to determine whether aerogel can have widespread application in clothing. Lastly, we provide suggestions on directions for future studies on the application of aerogels in clothing. | Du, Ying; Kim, Hee-Eun | Kyungpook Natl Univ, Coll Human Ecol, Dept Clothing & Text, 80 Daehak Ro, Daegu 41566, South Korea; Shandong Univ Art & Design, Dept Fash Design, Daxue Rd, Jinan 250307, Shandong, Peoples R China | du, ying/GQH-5782-2022; DU, YING/GQH-5782-2022 | 57814250600; 55766543400 | hekim@knu.ac.kr; | FASHION AND TEXTILES | FASH TEXT | 2198-0802 | 9 | 1 | SCIE | MATERIALS SCIENCE, TEXTILES | 2022 | 2.4 | 32.7 | 2.9 | 2025-06-25 | 16 | 16 | Aerogel clothing; Aerogel material; Research trends; Application of aerogel; Application effect | THERMAL-RESISTANCE; PERFORMANCE; INSULATION; NONWOVEN | Aerogel clothing; Aerogel material; Application effect; Application of aerogel; Research trends | English | 2022 | 2022-07-25 | 10.1186/s40691-022-00298-5 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | Article | The Variation of Schottky Barrier Height Induced by the Phase Separation of InAlAs Layers on InP HEMT Devices | We investigated the effect of phase separation on the Schottky barrier height (SBH) of InAlAs layers grown by metal–organic chemical vapor deposition. The phase separation into the In-rich InAlAs column and Al-rich InAlAs column of In0.52Al0.48As layers was observed when we grew them at a relatively low temperature of below 600 °C. From the photoluminescence spectrum investigation, we found that the band-gap energy decreased from 1.48 eV for a homogeneous In0.52Al0.48As sample to 1.19 eV for a phase-separated InxAl1−xAs sample due to the band-gap lowering effect by In-rich InxAl1−xAs (x > 0.7) region. From the current density–voltage analysis of the InAlAs Schottky diode, it was confirmed that the phase-separated InAlAs layers showed a lower SBH value of about 240 meV than for the normal InAlAs layers. The reduction in SBH arising from the phase separation of InAlAs layers resulted in the larger leakage current in InAlAs Schottky diodes. © 2022 by the authors. | Lee, Sang-Tae; Kong, Minwoo; Jang, Hyunchul; Song, Chang-Hun; Kim, Shinkeun; Yun, Do-Young; Jeong, Hyeon-Seok; Kim, Dae-Hyun; Shin, Chan-Soo; Seo, Kwang-Seok | Korea-Advanced-Nano-Center (KANC), Suwon, 16229, South Korea, Samsung Display Co., Ltd., Yongin-Si, 17113, South Korea; Korea-Advanced-Nano-Center (KANC), Suwon, 16229, South Korea, Department of Electrical and Computer Engineering, Inter-University Semiconductor Research Center, Seoul National University (SNU), Seoul, 08826, South Korea; Korea-Advanced-Nano-Center (KANC), Suwon, 16229, South Korea; Korea-Advanced-Nano-Center (KANC), Suwon, 16229, South Korea, Department of Material Science and Engineering, Yonsei University, Seoul, 03722, South Korea; Korea-Advanced-Nano-Center (KANC), Suwon, 16229, South Korea; School of Electronics Engineering, Kyungpook National University (KNU), Daegu, 41566, South Korea; School of Electronics Engineering, Kyungpook National University (KNU), Daegu, 41566, South Korea; School of Electronics Engineering, Kyungpook National University (KNU), Daegu, 41566, South Korea; Korea-Advanced-Nano-Center (KANC), Suwon, 16229, South Korea; Korea-Advanced-Nano-Center (KANC), Suwon, 16229, South Korea, Department of Electrical and Computer Engineering, Inter-University Semiconductor Research Center, Seoul National University (SNU), Seoul, 08826, South Korea | 57221766125; 57203878627; 55860474200; 57221682710; 36602671500; 57202865358; 57200366272; 57212363794; 57201540732; 58711653100 | chansoo.shin@kanc.re.kr;ksseo@snu.ac.kr; | Crystals | CRYSTALS | N/A | 2073-4352 | 12 | 7 | SCIE | CRYSTALLOGRAPHY;MATERIALS SCIENCE, MULTIDISCIPLINARY | 2022 | 2.7 | 32.7 | 0.35 | 2025-06-25 | 4 | band-gap lowering; InAlAs; InP HEMT; MOCVD; phase separation; schottky barrier height | English | Final | 2022 | 10.3390/cryst12070966 | 바로가기 | 바로가기 | 바로가기 | ||||||||
| ○ | ○ | Article | Understanding Occupants' Thermal Sensitivity According to Solar Radiation in an Office Building with Glass Curtain Wall Structure | The thermal comfort of occupants in the increasing number of modern buildings with glass curtain wall structures is of significant research interest. As the thermal sensitivity of building occupants varies with building features, situational factors, and the human body's thermal balance, it is necessary to derive the comfort temperature based on field research, which was conducted in this study in a South Korean office building with a glass curtain wall structure. The influence of solar radiation on the indoor thermal environment and thermal comfort obtained by measurements and occupant questionnaires was analyzed using cumulative graphs and a sensitivity analysis. The observed changes in operative temperature over time confirmed that occupant comfort was significantly affected by the radiant temperature. Based on this result, two groups (Group A near the windows and Group B near the interior corridor) were defined for analysis. Owing to the influx of solar radiation, Group A was more sensitive to changes in the thermal environment (0.67/degrees C) than Group B (0.49/degrees C), and the derived comfort temperature for each group differed from the set temperature by approximately +/- 2 degrees C. Thus, it was confirmed that the solar radiation introduced through a glass curtain wall building has a direct impact on the indoor thermal environment and occupant comfort according to location. | Kim, Sung-Kyung; Ryu, Ji-Hye; Seo, Hyun-Cheol; Hong, Won-Hwa | Kyungpook Natl Univ, Sch Architectural Civil Environm & Energy Engn, Daegu 41566, South Korea | ; Seo, Hyuncheol/ABC-5117-2020 | 57196459261; 56192651000; 56083741500; 7401527968 | kimsg1321@gmail.com;ryou0407@knu.ac.kr;notsools@gmail.com;hongwh@knu.ac.kr; | BUILDINGS | BUILDINGS-BASEL | 2075-5309 | 12 | 1 | SCIE | CONSTRUCTION & BUILDING TECHNOLOGY;ENGINEERING, CIVIL | 2022 | 3.8 | 32.7 | 1.4 | 2025-06-25 | 12 | 14 | glass curtain wall structure; solar radiation; office building; thermal environment; thermal comfort; operative temperature; thermal sensitivity | HEAT LOAD; COMFORT; TEMPERATURE; ADAPTATION; PERFORMANCE; DESIGN; MODEL; OPTIMIZATION; PRODUCTIVITY; SENSATION | Glass curtain wall structure; Office building; Operative temperature; Solar radiation; Thermal comfort; Thermal environment; Thermal sensitivity | English | 2022 | 2022-01 | 10.3390/buildings12010058 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Elucidating the Infrared Spectral Properties of Succinic Molecular Acid Crystals: Illustration of the Structure and the Hydrogen Bond Energies of the Crystal and Its Deuterated Analogs | Herein, the infrared spectroscopic properties of molecular succinic acid crystals (SA) and their four isotopic analogs [C2H4(COOH)(2), h(6)-SA; C2H4(COOD)(2), d(2)-SA; C2D4(COOH)(2), d(4)-SA; C2D4(COOD)(2), d(6)-SA] are reported. The correlation between the structure of succinic acid molecules and their corresponding hydrogen bond energies is elucidated. The effects related to the isotopic dilution as well as the changes in the spectrum recording temperature on the fine structures of the vO-H and vO-D bands are interpreted. The infrared spectral anomalies detected in the spectra of isotopically neat succinic nanocrystal acids are confirmed by theoretical calculations using density functional theory (DFT). According to previous spectroscopic studies of succinic acid and those carried out for alpha,omega-dicarboxylic acids, a decent agreement between the experimental results and the theoretical DFT simulations is obtained. Moreover, the spectra of single crystals of the h(6) and d(4) succinic acid variants prove that the vibrational coupling mechanism between the (COOH)(2) cycles is rigorously convergent to that detected in the spectra of aromatic carboxylic acids, suggesting thereby that the promotion of symmetry-forbidden high stretching IR transitions plays a crucial role. Furthermore, the obtained experimental results reveal that the succinic acid shows a spectral behavior significantly different from that characteristic of hydrogen associations of other acids of homologous series, such as the glutaric, adipic, malonic, and pimelic acid crystals. The results obtained herein shed light on the way to explore the revealed structure of isotopic derivatives of succinic acid crystals and may prove to be useful results for understanding the nature of unconventional interactions as well as the macroscopic energy effects directing the development of hydrogen associations. | Holaj-Krzak, Jakub T.; Rekik, Najeh; Alsaif, Norah A. M.; Lakshminarayana, G. | Univ Hail, Coll Sci, Phys Dept, Hail 55476, Saudi Arabia; Univ Alberta, Dept Chem, Edmonton, AB T6G 2G2, Canada; Kyungpook Natl Univ, Intelligent Construction Automat Ctr, Daegu 41566, South Korea; Life Sci Natl Res Inst, Inst Technol, PL-05090 Raszyn, Poland | Alsaif, Norah/ADD-4540-2022; Rekik, Najeh/AAY-8625-2021; Hołaj-Krzak, Jakub/HPC-0558-2023 | 56440216300; 22136167500; 57188921175; 57194637883 | j.holaj-krzak@itp.edu.pl; | JOURNAL OF PHYSICAL CHEMISTRY A | J PHYS CHEM A | 1089-5639 | 1520-5215 | 126 | 33 | SCIE | CHEMISTRY, PHYSICAL;PHYSICS, ATOMIC, MOLECULAR & CHEMICAL | 2022 | 2.9 | 32.9 | 0.21 | 2025-06-25 | 2 | 2 | POLARIZED IR-SPECTRA; H-BONDS; COUPLING MECHANISM; FORMIC-ACID; BASIS-SETS; GAS-PHASE; DENSITY; TEMPERATURE; DIMERS; MODEL | Crystallization; Hydrogen; Hydrogen Bonding; Spectrophotometry, Infrared; Succinic Acid; hydrogen; succinic acid; chemistry; crystallization; hydrogen bond; infrared spectrophotometry | English | 2022 | 2022-08-25 | 10.1021/acs.jpca.2c04440 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Impact of fractional amplitude of low-frequency fluctuations in motor- and sensory-related brain networks on spinal cord injury severity | Spinal cord injury (SCI) can cause motor, sensory, and autonomic dysfunctions and may affect the cerebral functions. However, the mechanisms of plastic changes in the brain according to SCI severity remain poorly understood. Therefore, in the current study, we compared the brain activity of the entire neural network according to severity of SCI using fractional amplitude of low-frequency fluctuations (fALFF) analysis in resting-state functional magnetic resonance imaging (rs-fMRI). A total of 59 participants were included, consisting of 19 patients with complete SCI, 20 patients with incomplete SCI, and 20 healthy individuals. Their motor and sensory functions were evaluated. The rs-fMRI data of low-frequency fluctuations were analyzed based on fALFF. Differences in fALFF values among complete-SCI patients, incomplete-SCI patients, and healthy controls were assessed using ANOVA. Then post hoc analysis and two-sample t-tests were conducted to assess the differences between the three groups. Pearson correlation analyses were used to determine correlations between clinical measures and the z-score of the fALFF in the SCI groups. Patients with SCI (complete and incomplete) showed lower fALFF values in the superior medial frontal gyrus than the healthy controls, and were associated with poor motor and sensory function (p < .05). Higher fALFF values were observed in the putamen and thalamus, and were negatively associated with motor and sensory function (p < .05). In conclusion, alterations in the neural activity of the motor- and sensory-related networks of the brain were observed in complete-SCI and incomplete-SCI patients. Moreover, plastic changes in these brain regions were associated with motor and sensory function. | Kim, Ae Ryoung; Cha, Hyunsil; Kim, Eunji; Kim, Seungho; Lee, Hui Joong; Park, Eunhee; Lee, Yang-Soo; Jung, Tae-Du; Chang, Yongmin | Kyungpook Natl Univ, Sch Med, Dept Phys Med & Rehabil, Daegu, South Korea; Kyungpook Natl Univ Hosp, Dept Phys Med & Rehabil, Daegu, South Korea; Kyungpook Natl Univ, Dept Med & Biol Engn, Daegu, South Korea; Kyungpook Natl Univ, Sch Med, Dept Radiol, Daegu, South Korea; Kyungpook Natl Univ Hosp, Dept Radiol, Daegu, South Korea; Kyungpook Natl Univ Hosp, Sch Med, Dept Mol Med, Daegu, South Korea | 57196257330; 57189728122; 57215273419; 57218284791; 23485776600; 56107216400; 57202952463; 36622364500; 7501840633 | teeed0522@hanmail.net;ychang@knu.ac.kr; | NMR IN BIOMEDICINE | NMR BIOMED | 0952-3480 | 1099-1492 | 35 | 1 | SCIE | BIOPHYSICS;RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING;SPECTROSCOPY | 2022 | 2.9 | 32.9 | 0.76 | 2025-06-25 | 7 | 7 | motor function; power spectral density; resting-state functional magnetic resonance imaging; sensory function; spinal cord injury | STATE FUNCTIONAL CONNECTIVITY; DIRECT-CURRENT STIMULATION; NEUROPATHIC PAIN; REORGANIZATION; PLASTICITY; THALAMUS; RECOVERY; CORTEX | motor function; power spectral density; resting-state functional magnetic resonance imaging; sensory function; spinal cord injury | Adult; Aged; Brain; Brain Mapping; Female; Humans; Magnetic Resonance Imaging; Male; Middle Aged; Nerve Net; Severity of Illness Index; Spinal Cord Injuries; Brain; Correlation methods; Magnetic resonance imaging; Neurons; Patient rehabilitation; Cerebral functions; Healthy individuals; Low Frequency Fluctuations; Pearson correlation analysis; Resting-state functional magnetic resonance imaging; Sensory functions; Spinal cord injuries (SCI); Two sample t tests; adolescent; anterior cingulate; Article; clinical article; controlled study; disease association; electroencephalogram; female; fractional amplitude of low-frequency fluctuation; functional magnetic resonance imaging; functional neuroimaging; human; injury severity; insula; male; mesencephalon; middle frontal gyrus; motor dysfunction; parahippocampal gyrus; precuneus; putamen; sensorimotor function; sensorimotor network; sensory dysfunction; spinal cord injury; superior temporal gyrus; thalamus; adult; aged; brain; brain mapping; diagnostic imaging; middle aged; nerve cell network; nuclear magnetic resonance imaging; pathophysiology; procedures; severity of illness index; spinal cord injury; Functional neuroimaging | English | 2022 | 2022-01 | 10.1002/nbm.4612 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Reactive Halogen Species-Mediated Electrocatalytic Oxidation of Arsenite(III) | Electrocatalytic advanced oxidation processes have long been considered among of the most viable ways to remediate aquatic contaminants, including As(III). Although direct electrochemical oxidation of As(III) is thermochemically facile, a high reaction rate is not easily achieved because of the competitive oxygen evolution reaction (OER), particularly at high potentials. This study examines the effect of three halides (Cl-, Br-, and I-) on the electrochemical oxidation of As(III) with nanoparticulate TiO2 electrodes in an aqueous bicarbonate solution at pH 8.7. The halides significantly enhance As(III) oxidation kinetics by >4, >8, and >20 times, respectively, under optimal conditions. Faradaic efficiencies of As(V) production (AsV-FEs) are also enhanced by a maximum of 10 times by the halides, even at high potentials at which the OER occurs. Pre-electrolysis of each halide solution produces reactive halogen species (ClO-, BrO-, and I3-). As(III)-spiking of the pre-electrolyzed halide solutions allows simultaneous concentration changes at near-stoichiometric ratios (R2 > 0.98) between each halogen species and As(V). Among the three halides, iodide imparts the strongest effect on As(III) oxidation owing to its lowest redox potential. Finally, technical considerations of reactive-halogen-species-mediated As(III) oxidation are discussed. | Park, Hyunwoong; Choi, Wonjung; Han, Dong Suk | Kyungpook Natl Univ, Sch Energy Engn, Daegu 41566, South Korea; Qatar Univ, Ctr Adv Mat, Doha, Qatar | Han, Dong SuK/AAX-9333-2021 | 56419210400; 36139213900; 7601565583 | hwp@knu.ac.kr; | JOURNAL OF PHYSICAL CHEMISTRY A | J PHYS CHEM A | 1089-5639 | 1520-5215 | 126 | 45 | SCIE | CHEMISTRY, PHYSICAL;PHYSICS, ATOMIC, MOLECULAR & CHEMICAL | 2022 | 2.9 | 32.9 | 0.62 | 2025-06-25 | 6 | 6 | AQUEOUS FREE CHLORINE; BR-2/BR-REDOX COUPLE; MOLECULAR-HYDROGEN; ELECTROCHEMICAL PRODUCTION; WATER; ELECTRODES; DEGRADATION; CARBON; REMEDIATION; PERFORMANCE | Bromine compounds; Electrocatalysis; Redox reactions; Titanium dioxide; Advanced Oxidation Processes; Aquatic contaminants; Direct electrochemical oxidation; Electro-catalytic oxidation; Electrocatalytic; Halide solutions; Halogen species; High potential; Reactions rates; Thermo-chemically; Electrochemical oxidation | English | 2022 | 2022-11-17 | 10.1021/acs.jpca.2c06479 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Editorial Material | Special issue 'role of artificial intelligence in medical imaging' | Ahmed, Syed Hassan; Khan, Murad; Guibene, Wael | Calif State Univ Fullerton, Fullerton, CA 92634 USA; Kyungpook Natl Univ, Sch Comp Sci & Engn, Daegu, South Korea; Infineon Technol, Milpitas, CA USA | Khan, Turyalai/HPH-0061-2023; Guibene, Wael/AAZ-5234-2020; Shah, Syed Hassan/E-5058-2014 | 55389144500; 56151971600; 36573391400 | sh.ahmed@ieee.org;hassanshah@fullerton.edu; | EXPERT SYSTEMS | EXPERT SYST | 0266-4720 | 1468-0394 | 39 | 9 | SCIE | COMPUTER SCIENCE, ARTIFICIAL INTELLIGENCE;COMPUTER SCIENCE, THEORY & METHODS | 2022 | 3.3 | 32.9 | 0 | 2025-06-25 | 0 | 0 | English | 2022 | 2022-11 | 10.1111/exsy.13019 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||||||
| ○ | ○ | Article | Anomalous Photocurrent Reversal Due to Hole Traps in AlGaN-Based Deep-Ultraviolet Light-Emitting Diodes | The trap states and defects near the active region in deep-ultraviolet (DUV) light-emitting diodes (LED) were investigated through wavelength-dependent photocurrent spectroscopy. We observed anomalous photocurrent reversal and its temporal recovery in AlGaN-based DUV LEDs as the wavelength of illuminating light varied from DUV to visible. The wavelength-dependent photocurrent measurements were performed on 265 nm-emitting DUV LEDs under zero-bias conditions. Sharp near-band-edge (similar to 265 nm) absorption was observed in addition to broad (300-800 nm) visible-range absorption peaks in the photocurrent spectrum, while the current direction of these two peaks were opposite to each other. In addition, the current direction of the photocurrent in the visible wavelength range was reversed when a certain forward bias was applied. This bias-induced current reversal displayed a slow recovery time (similar to 6 h) when the applied forward voltage was removed. Furthermore, the recovery time showed strong temperature dependency and was faster as the sample temperature increased. This result can be consistently explained by the presence of hole traps at the electron-blocking layer and the band bending caused by piezoelectric polarization fields. The activation energy of the defect state was calculated to be 279 meV using the temperature dependency of the recovery time. | Lim, Seungyoung; Kim, Tae-Soo; Kang, Jaesang; Kim, Jaesun; Song, Minhyup; Kim, Hyun Deok; Song, Jung-Hoon | Elect & Telecommun Res Inst, Photon Wireless Devices Res Div, Daejeon 34129, South Korea; Kyungpook Natl Univ, Sch Elect Engn, Daegu 41566, South Korea; Kyungpook Natl Univ, Dept Data Informat & Phys, Gongju 32588, South Korea; Phovel Co Ltd, R&D Team, Daejeon 34302, South Korea | Kim, Yong Joon/IQS-7291-2023 | 57213792974; 55628583235; 57226704628; 57226722602; 43761532400; 55663858300; 7404787858 | sylim93@etri.re.kr;kts@phovel.com;kokonut73@smail.kongju.ac.kr;kjsun150910@smail.kongju.ac.kr;sminhyup@etri.re.kr;hyundkim@ee.knu.ac.kr;jh-song@kongju.ac.kr; | MICROMACHINES | MICROMACHINES-BASEL | 2072-666X | 13 | 8 | SCIE | CHEMISTRY, ANALYTICAL;INSTRUMENTS & INSTRUMENTATION;NANOSCIENCE & NANOTECHNOLOGY;PHYSICS, APPLIED | 2022 | 3.4 | 33.1 | 0.08 | 2025-06-25 | 1 | 1 | AlGaN; deep ultraviolet; light-emitting diode; photocurrent spectroscopy; anomalous photocurrent | SPECTROSCOPY | AlGaN; anomalous photocurrent; deep ultraviolet; light-emitting diode; photocurrent spectroscopy | Absorption spectroscopy; Activation energy; Aluminum alloys; Aluminum gallium nitride; Defects; III-V semiconductors; Photoconductivity; Photocurrents; Recovery; Semiconductor alloys; Ultraviolet radiation; Anomalous photocurrent; Current direction; Deep ultraviolet; Deep ultraviolet LED; Lightemitting diode; Photocurrent spectroscopy; Recovery time; Temperature dependencies; Ultraviolet light emitting diodes; Ultraviolet light-emitting diodes; Light emitting diodes | English | 2022 | 2022-08 | 10.3390/mi13081233 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Automated picking-sorting system for assembling components in an IKEA chair based on the robotic vision system | With the rapid growth of the furniture product line industry and IKEA as the one of the pioneers, manual labour (and its limits of stability and high cost) is increasingly being replaced by automated systems. This is particularly due to the explosion of artificial intelligence techniques, which are practically useful in assembling tasks, which is one of the most common processes in furniture production. Loading connecting components with a standard posture is a representative example of a technique that is necessary and mostly performed by humans at present. This paper mainly focuses on the development of an automaticity robot system that provides an accurate and robust system for picking and sorting connecting components with two robot arms combined with optimized socket designs to increase the success probability. The performance of the proposed picking-sorting robots has been validated with success rates of picking-and-sorting tests ranging from 91.8% to 98.7% for all types of objects and operation times from 17.5 s to 25 s. | Yang, Ruizhi; Nguyen, Thong Phi; Park, Sung Hyuk; Yoon, Jonghun | Hanyang Univ, Dept Mech Design Engn, Major Mat Devices & Equipment, Seoul, South Korea; Hanyang Univ, BK21 FOUR ERICA ACE Ctr, Ansan 15588, Gyeonggi, South Korea; Kyungpook Natl Univ, Sch Mat Sci & Engn, Daegu, South Korea; Hanyang Univ, Dept Mech Engn, Ansan 15588, Gyeonggi Do, South Korea | Nguyen, Thong/JHS-8911-2023; Park, Sung-Hyuk/AAE-6726-2022 | 57222093400; 57212284607; 54786002500; 56449838900 | yooncsmd@gmail.com; | INTERNATIONAL JOURNAL OF COMPUTER INTEGRATED MANUFACTURING | INT J COMPUT INTEG M | 0951-192X | 1362-3052 | 35 | 6 | SCIE | COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS;ENGINEERING, MANUFACTURING;OPERATIONS RESEARCH & MANAGEMENT SCIENCE | 2022 | 4.1 | 33.1 | 0.61 | 2025-06-25 | 6 | 8 | Assembling lines; computer vision; neural network applications; image processing | FRAMEWORK; POSE | Assembling lines; computer vision; image processing; neural network applications | Automation; Machine design; Robots; Artificial intelligence techniques; Assembling line; Automated systems; High costs; Images processing; Manual labors; Neural network application; Productline; Rapid growth; Sorting system; Computer vision | English | 2022 | 2022-06-03 | 10.1080/0951192x.2021.1992658 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |
| ○ | ○ | Article | Implementation of Flip-Chip Microbump Bonding between InP and SiC Substrates for Millimeter-Wave Applications | Flip-chip microbump (mu-bump) bonding technology between indium phosphide (InP) and silicon carbide (SiC) substrates for a millimeter-wave (mmW) wireless communication application is demonstrated. The proposed process of flip-chip mu-bump bonding to achieve high-yield performance utilizes a SiO2-based dielectric passivation process, a sputtering-based pad metallization process, an electroplating (EP) bump process enabling a flat-top mu-bump shape, a dicing process without the peeling of the dielectric layer, and a SnAg-to-Au solder bonding process. By using the bonding process, 10 mm long InP-to-SiC coplanar waveguide (CPW) lines with 10 daisy chains interconnected with a hundred mu-bumps are fabricated. All twelve InP-to-SiC CPW lines placed on two samples, one of which has an area of approximately 11 x 10 mm(2), show uniform performance with insertion loss deviation within +/- 10% along with an average insertion loss of 0.25 dB/mm, while achieving return losses of more than 15 dB at a frequency of 30 GHz, which are comparable to insertion loss values of previously reported conventional CPW lines. In addition, an InP-to-SiC resonant tunneling diode device is fabricated for the first time and its DC and RF characteristics are investigated. | Lee, Jongwon; Lee, Jae Yong; Song, Jonghyun; Sim, Gapseop; Ko, Hyoungho; Kong, Seong Ho | Natl Nanofab Ctr, Nano Convergence Technol Div, Daejeon 34141, South Korea; Kyungpook Natl Univ, Sch Elect & Elect Engn, Daegu 41566, South Korea; Chungnam Natl Univ, Dept Elect Engn, Daejeon 34134, South Korea | 56347974700; 57223374818; 23669151400; 57192811038; 7201926289; 57204537951 | temuchin80@rmfc.re.kr;cheersssss@naver.com;jhsong@nnfc.re.kr;gssim@nnfc.re.kr;hhko@cnu.ac.kr;shkong@knu.ac.kr;temuchin80@nnfc.re.kr; | MICROMACHINES | MICROMACHINES-BASEL | 2072-666X | 13 | 7 | SCIE | CHEMISTRY, ANALYTICAL;INSTRUMENTS & INSTRUMENTATION;NANOSCIENCE & NANOTECHNOLOGY;PHYSICS, APPLIED | 2022 | 3.4 | 33.1 | 0.16 | 2025-06-25 | 3 | 2 | InP; SiC; flip-chip bonding; millimeter wave; heterogeneous integration | INTEGRATION; GHZ | flip‐chip bonding; heterogeneous integration; InP; millimeter wave; SiC | Coplanar waveguides; III-V semiconductors; Insertion losses; Millimeter waves; Resonant tunneling; Resonant tunneling diodes; Semiconducting indium phosphide; Silica; Silicon carbide; Silicon oxides; Substrates; Bonding technology; Bump bonding; Coplanar waveguide lines; Flip chip; Flip-chip-bonding; Heterogeneous integration; Micro-bumps; Millimeter-wave applications; Performance; Silicon carbide substrates; Indium phosphide | English | 2022 | 2022-07 | 10.3390/mi13071072 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Ion-Driven Electrochemical Random-Access Memory-Based Synaptic Devices for Neuromorphic Computing Systems: A Mini-Review | To enhance the computing efficiency in a neuromorphic architecture, it is important to develop suitable memory devices that can emulate the role of biological synapses. More specifically, not only are multiple conductance states needed to be achieved in the memory but each state is also analogously adjusted by consecutive identical pulses. Recently, electrochemical random-access memory (ECRAM) has been dedicatedly designed to realize the desired synaptic characteristics. Electric-field-driven ion motion through various electrolytes enables the conductance of the ECRAM to be analogously modulated, resulting in a linear and symmetric response. Therefore, the aim of this study is to review recent advances in ECRAM technology from the material and device engineering perspectives. Since controllable mobile ions play an important role in achieving synaptic behavior, the prospect and challenges of ECRAM devices classified according to mobile ion species are discussed. | Kang, Heebum; Seo, Jongseon; Kim, Hyejin; Kim, Hyun Wook; Hong, Eun Ryeong; Kim, Nayeon; Lee, Daeseok; Woo, Jiyong | Kyungpook Natl Univ, Sch Elect & Elect Engn, Daegu 41566, South Korea; Kwangwoon Univ, Dept Elect Mat Engn, Seoul 01897, South Korea; Kyungpook Natl Univ, Sch Elect Engn, Daegu 41566, South Korea | 57232405900; 57221853306; 57558641700; 57557016000; 57556070800; 59884547500; 36604679100; 53985749100 | hbkang@knu.ac.kr;seojs@kw.ac.kr;hyejinkim@kw.ac.kr;hw.kim@knu.ac.kr;er.hong@knu.ac.kr;nayeon.kim@knu.ac.kr;leeds@kw.ac.kr;jiyong.woo@knu.ac.kr; | MICROMACHINES | MICROMACHINES-BASEL | 2072-666X | 13 | 3 | SCIE | CHEMISTRY, ANALYTICAL;INSTRUMENTS & INSTRUMENTATION;NANOSCIENCE & NANOTECHNOLOGY;PHYSICS, APPLIED | 2022 | 3.4 | 33.1 | 0.32 | 2025-06-25 | 10 | 11 | electrochemical RAM; redox transistor; neuromorphic computing; synaptic devices | RESISTIVE MEMORY; ELECTROLYTE | electrochemical RAM; neuromorphic computing; redox transistor; synaptic devices | Electric fields; Ions; Computing efficiency; Computing system; Electrochemical RAM; Electrochemicals; Mobile ions; Neuromorphic Architectures; Neuromorphic computing; Random access memory; Redox transistor; Synaptic device; Random access storage | English | 2022 | 2022-03 | 10.3390/mi13030453 | 바로가기 | 바로가기 | 바로가기 | 바로가기 |
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