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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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| ○ | ○ | Review | The Future Is Colorful-An Analysis of the CO2 Bow Wave and Why Green Hydrogen Cannot Do It Alone | In both the private and public sectors, green hydrogen is treated as a promising alternative to fossil energy commodities. However, building up production capacities involves significant carbon production, especially when considering secondary infrastructure, e.g., renewable power sources. The amount of required capacity as well as the carbon production involved is calculated in this article. Using Germany as an example we show that the switch to purely green hydrogen involves significant bow waves in terms of carbon production as well as financial and resource demand. An economic model for an optimal decision is derived and-based on empirical estimates-calibrated. It shows that, even if green hydrogen is a competitive technology in the future, using alternatives like turquoise hydrogen or carbon capture and storage is necessary to significantly reduce or even avoid the mentioned bow waves. | von Dollen, Andreas; Hwang, YoungSeok; Schlueter, Stephan | Wintershall Dea AG, D-34119 Kassel, Germany; Kyungpook Natl Univ, Dept Climate Change, 80 Univ Rd, Daegu 41566, South Korea; Univ Appl Sci Ulm, Dept Math Nat & Econ Sci, D-89075 Ulm, Germany | 57258641700; 57218585482; 55258366500 | andreas.doellen@wintershalldea.com;poiu012345@naver.com;Stephan.schlueter@thu.de; | ENERGIES | ENERGIES | 1996-1073 | 14 | 18 | SCIE | ENERGY & FUELS | 2021 | 3.252 | 66.8 | 0.15 | 2025-07-30 | 7 | 8 | hydrogen; CO2; wind power; electrolyzer; bow wave | ENERGY RETURN; STORAGE; EMISSIONS; ONSHORE | Bow wave; CO<sub>2</sub>; Electrolyzer; Hydrogen; Wind power | Carbon capture; Carbon production; Economic modeling; Empirical estimate; Optimal decisions; Production capacity; Public sector; Renewable Power; Resource demands; Hydrogen storage | English | 2021 | 2021-09 | 10.3390/en14185720 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Thermodynamic Study of a Combined Power and Refrigeration System for Low-Grade Heat Energy Source | This study focuses on the thermal performance analysis of an organic Rankine cycle powered vapor compression refrigeration cycle for a set of working fluids for each cycle, also known as a dual fluid system. Both cycles are coupled using a common shaft to maintain a constant transmission ratio of one. Eight working fluids have been studied for the vapor compression refrigeration cycle, and a total of sixty-four combinations of working fluids have been analyzed for the dual fluid combined cycle system. The analysis has been performed to achieve a temperature of -16 degrees C for a set of condenser temperatures 34 degrees C, 36 degrees C, 38 degrees C, and 40 degrees C. For the desired temperature in the refrigeration cycle, the required work input, mass flow rate, and heat input for the organic Rankine cycle were determined systematically. Based on the manifestation of performance criteria, three working fluids (R123, R134a, and R245fa) were chosen for the refrigeration cycle and two (Propane and R245fa) were picked for the organic Rankine cycle. Further, a combination of R123 in the refrigeration cycle with propane in the Rankine cycle was scrutinized for their highest efficiency value of 16.48% with the corresponding highest coefficient of performance value of 2.85 at 40 degrees C. | Khatoon, Saboora; Almefreji, Nasser Mohammed A.; Kim, Man-Hoe | Kyungpook Natl Univ, Sch Mech Engn, Daegu 41566, South Korea; Kyungpook Natl Univ, IEDT, Daegu 41566, South Korea | 57197833125; 57223388348; 55686310000 | s.khatoon@knu.ac.kr;nasser6164@naver.com;manhoe.kim@knu.ac.kr; | ENERGIES | ENERGIES | 1996-1073 | 14 | 2 | SCIE | ENERGY & FUELS | 2021 | 3.252 | 66.8 | 1.24 | 2025-07-30 | 24 | 22 | organic Rankine cycle; energy efficiency; refrigeration cycle; waste heat | ORGANIC RANKINE-CYCLE; VAPOR COMPRESSION CYCLE; WASTE HEAT; PERFORMANCE ANALYSIS; WORKING FLUIDS; DRIVEN; EFFICIENCY | Energy efficiency; Organic Rankine cycle; Refrigeration cycle; Waste heat | Propane; Rankine cycle; Refrigerants; Temperature; Working fluids; Condenser temperature; Constant transmission ratios; Organic Rankine cycles; Performance criterion; Refrigeration system; Thermal performance analysis; Thermodynamic studies; Vapor-compression refrigeration cycle; Vapor compression refrigeration | English | 2021 | 2021-01 | 10.3390/en14020410 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Torque Analysis for Rotational Devices with Nonmagnetic Rotor Driven by Magnetic Fluid Filled in Air Gap | In magnetomechanical applications, it is necessary to calculate the magnetic force or torque of specific objects. If the magnetic fluid is involved, the force and torque also include the effect of pressure caused by the fluid. The standard method is to solve the Navier-Stokes equation. However, obtaining magnetic body force density is still under controversy. To resolve this problem, this paper shows that the calculation of the torque of these applications should not only use the magnetic force calculation method, but also consider the mechanical pressure using an indirect approach, such as the virtual work principle. To illustrate this, we use an experimental motor made of a nonmagnetic rotor immersed in a magnetic fluid. Then, we show that the virtual work principle in appropriate approach can calculate the output torque of the nonmagnetic rotor due to pressure of the magnetic fluid. Numerical analysis and experimental results show the validity of this approach. In addition, we also explain how the magnetic fluid transmits its magnetic force to the stator and rotor, respectively. | Kim, Gui-Hwan; Choi, Hong-Soon | Kyungpook Natl Univ, Dept Elect Engn, 80 Daehak Ro, Daegu 41566, South Korea | 57193239440; 7404338767 | ddx1000@knu.ac.kr;tochs@knu.ac.kr; | ENERGIES | ENERGIES | 1996-1073 | 14 | 15 | SCIE | ENERGY & FUELS | 2021 | 3.252 | 66.8 | 0 | 2025-07-30 | 0 | 0 | magnetic fluid; magnetic torque; pressure; virtual work principle | FORCE CALCULATION; FERROFLUID; DENSITY; STRESS | Magnetic fluid; Magnetic torque; Pressure; Virtual work principle | Air; Magnetic fluids; Magnetism; Navier Stokes equations; Torque; Effect of pressure; Force and torques; Magnetic body force; Magnetic force; Mechanical pressure; Output torque; Torque analysis; Virtual work principle; Magnetic devices | English | 2021 | 2021-08 | 10.3390/en14154669 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Zero-Sequence Voltage Injection Method for DC Capacitor Voltage Balancing of Wye-Connected CHB Converter under Unbalanced Grid and Load Conditions | Leg capacitor energy balancing control is one of the crucial issues for stable operation of a cascaded H-bridge (CHB) converter. Because this topology inherently consists of numerous submodule cells with DC capacitors, the cell voltages and leg capacitor energy instantaneously fluctuate depending on operation sequence of the CHB converter. In general, a wye-connected CHB-converter-based static synchronous compensator (STATCOM) utilizes a zero-sequence voltage component for leg capacitor energy balancing. In this paper, to improve the dynamics of leg energy balancing control, a feedforward calculation method of the zero-sequence voltage injection is proposed. The feedforward term can be instantaneously calculated by using the information from the measured leg voltages and leg currents, and the method ensures successful regulation of the leg energy balance even under unbalanced grid and load conditions. Moreover, the verification of the proposed method is supported by the mathematical vector theorems. A 50MVA full-scale wye-connected CHB-STATCOM system simulation was performed to verify the proposed feedforward calculation method considering unbalanced grid as well as unbalanced load conditions. | Kim, Jae-Myeong; Song, Geum-Seop; Jung, Jae-Jung | Kyungpook Natl Univ, IT Coll, Sch Elect & Elect Engn, Daegu 41566, South Korea | 57210835520; 57223916437; 55368433400 | mms01270@knu.ac.kr;kmkwoo@knu.ac.kr;jj.jung@knu.ac.kr; | ENERGIES | ENERGIES | 1996-1073 | 14 | 4 | SCIE | ENERGY & FUELS | 2021 | 3.252 | 66.8 | 0.65 | 2025-07-30 | 8 | 11 | cascaded H-Bridge (CHB) converter; feedforward calculation; grid imbalance; leg energy balancing; load imbalance; static synchronous compensator (STATCOM); zero-sequence voltage injection | MODULAR MULTILEVEL CONVERTERS; STATCOM | Cascaded H-Bridge (CHB) converter; Feedforward calculation; Grid imbalance; Leg energy balancing; Load imbalance; Static synchronous compensator (STATCOM); Zero-sequence voltage injection | Bridge circuits; Calculations; Electric current regulators; Energy balance; Power converters; Cascaded H-bridge converter; Energy-balancing; Feed forward; Feedforward calculation; Grid imbalance; Leg energy balancing; Load imbalance; Static synchronoi compensator; Voltage injection; Zero sequence voltage; Zero-sequence voltage injection; Static synchronous compensators | English | 2021 | 2021-02 | 10.3390/en14041019 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Antioxidant and Anti-Inflammatory Activities of Zingiber montanum Oil in HepG2 Cells and Lipopolysaccharide-Stimulated RAW 264.7 Macrophages | Improvement of antioxidant and anti-inflammatory functions is believed to be an effective strategy for protection against various diseases such as cancer, aging, and neurodegenerative disease. This study focused on investigating antioxidant and anti-inflammatory abilities of Zingiber montanum oil (ZMO) extracted by the supercritical CO2 fluid system in HepG2 cells and lipopolysaccharide (LPS)-treated RAW 264.7 macrophages. Ten predominant constituents of ZMO were identified, in which triquinacene, 1,4-bis (methoxy), terpinen-4-ol, triquinacene, 1,4,7-tris (methoxy), alpha-terpinene, sabinene hydrate, and (E and Z)-1-(3,4-dimethoxyphenyl)butadiene account for 86.47%. ZMO exhibited anti-inflammatory capacity by inhibiting the formation of pro-inflammatory markers such as nitric oxide, inducible nitric oxide synthase, cyclooxygenase-2, interleukin (IL)-1 beta, IL-6, and monocyte chemoattractant protein-1 in LPS-treated macrophages. The LPS-induced stimulation of nuclear factor-kappa B, signal transducer and activator of transcription 3 (Stat3) and mitogen-activated protein kinase (MAPK) pathways as evident from increased phosphorylation of IKK alpha/beta, I kappa B alpha, p65, Stat3, ERK, JNK, and p38 MAPK was also suppressed by ZMO pretreatment. Further, ZMO enhanced the expression of nuclear factor erythroid 2-related factor (Nrf2) and heme oxygenase-1 (HO-1), and concurrently, reduced intracellular reactive oxygen species accumulation in LPS-treated RAW 264.7 cells. In addition, ZMO treatment markedly upregulated the expression of Nrf2 as well as its target genes, HO-1 and NAD(P)H:quinone oxidoreductase 1 in HepG2 cells. These data propose that ZMO may be a potent candidate for prevention and/or treatment of inflammatory and oxidative conditions. | Truong, Van-Long; Manochai, Benya; Pham, Thu-Trang; Jeong, Woo-Sik | Kyungpook Natl Univ, Coll Agr & Life Sci, Sch Food Sci & Biotechnol, Food & Bioind Res Inst, Daegu 41566, South Korea; Inje Univ, Coll BNIT, Dept Food & Life Sci, Gimhae, South Korea; Kasetsart Univ, Dept Hort, Bangkok, Thailand | Jeong, Woo-Sik/AAN-6885-2020 | 55925363400; 24587635900; 57224922615; 10440750200 | wsjeong@knu.ac.kr; | JOURNAL OF MEDICINAL FOOD | J MED FOOD | 1096-620X | 1557-7600 | 24 | 6 | SCIE | CHEMISTRY, MEDICINAL;FOOD SCIENCE & TECHNOLOGY;NUTRITION & DIETETICS | 2021 | 2.542 | 67.0 | 0.65 | 2025-07-30 | 6 | 8 | anti-inflammation; antioxidant; NF-kappa B; Nrf2; Stat3; Zingiber montanum oil | NF-KAPPA-B; TEA TREE OIL; HEME OXYGENASE-1; INFLAMMATORY RESPONSE; NITRIC-OXIDE; IN-VITRO; LPS; NRF2; STRESS; MAPK | anti-inflammation; antioxidant; NF-κB; Nrf2; Stat3; Zingiber montanum oil | Animals; Anti-Inflammatory Agents; Antioxidants; Heme Oxygenase-1; Hep G2 Cells; Humans; Lipopolysaccharides; Macrophages; Mice; Neurodegenerative Diseases; NF-kappa B; Nitric Oxide; Nitric Oxide Synthase Type II; RAW 264.7 Cells; 1 (3,4 dimethoxyphenyl)butadiene; 1 [4 (1 methyl 2 propenyl)phenyl]; 1,4 bis(methoxy); 1,4,7 tris(methoxy); beta sesquiphellandrene; carbon dioxide; cyclooxygenase 2; essential oil; ethanone; ferulic acid; ferulic acid methyl ester; heme oxygenase 1; I kappa B kinase alpha; I kappa B kinase beta; immunoglobulin enhancer binding protein; inducible nitric oxide synthase; interleukin 1beta; interleukin 6; lipopolysaccharide; mitogen activated protein kinase; mitogen activated protein kinase p38; monocyte chemotactic protein 1; nad(p)h:quinone oxidoreductase 1; nitric oxide; reactive oxygen metabolite; reduced nicotinamide adenine dinucleotide (phosphate) dehydrogenase (quinone); sabinene; sabinene hydrate; STAT3 protein; stress activated protein kinase; terpinen 4 ol; terpinene; terpinolene; transcription factor Nrf2; transcription factor RelA; triquinacene; unclassified drug; antiinflammatory agent; antioxidant; heme oxygenase 1; inducible nitric oxide synthase; lipopolysaccharide; nitric oxide; antiinflammatory activity; antioxidant activity; Article; comparative study; controlled study; enzyme phosphorylation; gene targeting; Hep-G2 cell line; human; human cell; macrophage; MAPK signaling; nonhuman; protein expression; RAW 264.7 cell line; rhizome; supercritical fluid extraction; upregulation; Zingiber montanum; animal; degenerative disease; genetics; Hep-G2 cell line; macrophage; metabolism; mouse; RAW 264.7 cell line | English | 2021 | 2021-06-01 | 10.1089/jmf.2021.k.0019 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |
| ○ | ○ | Article | Evaluation of the Dose-Dependent Effects of Fermented Mixed Grain Enzyme Food on Adiposity and Its Metabolic Disorders in High-Fat Diet-Induced Obese Mice | Ancient traditions showed that fermented enzyme foods have beneficial health effects on the body. However, only a few studies have reported on its impact on weight loss and metabolic syndrome. Therefore, it is necessary to verify whether diet supplementation with fermented enzyme foods can have a beneficial functional impact on the body. We examined the antiobesity properties of fermented mixed grain (FMG) with digestive enzymes (FMG) in diet-induced obese mice. Sixty C57BL/6J mice were randomly assigned to six dietary groups: (1) normal diet (ND), (2) high-fat diet (HFD), (3) Bacilus Coagulans, (4) steamed grain, (5) low-dose FMG (L-FMG), and (6) high-dose FMG (H-FMG) supplement for 12 weeks. The results showed that H-FMG supplement dramatically decreased body weight and fat mass with simultaneous decreases in plasma lipid contents. Furthermore, H-FMG significantly lowered fasting blood glucose concentrations and improved glucose tolerance compared with the HFD group. Also, the concentrations of inflammatory cytokines secreted from adipocytes in H-FMG-supplemented mice decreased dramatically. Taken together, our findings indicated that H-FMG can ameliorate HFD-induced obesity and its associated complications and could be used as a potential preventive intervention for obesity. | Han, Youngji; Shin, Young Chul; Kim, Ae-Hyang; Kwon, Eun-Young; Choi, Myung-Sook | Kyungpook Natl Univ, Dept Food Sci & Nutr, 1370 Sankyuk Dong, Taegu 702701, South Korea; Kyungpook Natl Univ, Ctr Food & Nutr Genom Res, Daegu, South Korea; Kyungpook Natl Univ, Ctr Beautiful Aging, Daegu, South Korea; Amicogen Inc, Jinju, South Korea | 57206914262; 56296482300; 57114150000; 15765422500; 7402093877 | eykwon@knu.ac.kr;mschoi@knu.ac.kr; | JOURNAL OF MEDICINAL FOOD | J MED FOOD | 1096-620X | 1557-7600 | 24 | 8 | SCIE | CHEMISTRY, MEDICINAL;FOOD SCIENCE & TECHNOLOGY;NUTRITION & DIETETICS | 2021 | 2.542 | 67.0 | 0.37 | 2025-07-30 | 6 | 6 | diet-induced obesity; digestive enzyme; metabolic syndrome; nutrigenomics | TOLL-LIKE RECEPTORS; INSULIN-RESISTANCE; LIVER-DISEASE; INCREASED EXPRESSION; ENERGY-BALANCE; TNF-ALPHA; INFLAMMATION; HYPERGLYCEMIA; PREVALENCE; MANAGEMENT | diet-induced obesity; digestive enzyme; metabolic syndrome; nutrigenomics | Adiposity; Animals; Body Weight; Diet, High-Fat; Metabolic Diseases; Mice; Mice, Inbred C57BL; Mice, Obese; Obesity; adipocytokine; amylase; cytokine; feces lipid; messenger RNA; proteinase; triacylglycerol lipase; adipocyte; adipose tissue; animal experiment; animal model; animal tissue; antiobesity activity; Article; Bacillus coagulans; body fat; body weight; caloric intake; controlled study; diet-induced obesity; dietary supplement; energy expenditure; enzyme activity; fat mass; fatty acid oxidation; fatty liver; fermented mixed grain; glucose blood level; glucose metabolism; glucose tolerance; lipid blood level; lipid liver level; lipid metabolism; liver; liver weight; male; metabolic disorder; mouse; nonhuman; transcriptomics; white adipose tissue; adverse event; animal; C57BL mouse; lipid diet; mouse mutant; obesity | English | 2021 | 2021-08-01 | 10.1089/jmf.2021.k.0070 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Review | Phytochemical and Over-The-Counter Drug Interactions: Involvement of Phase I and II Drug-Metabolizing Enzymes and Phase III Transporters | Consumption of plant-derived natural products and over-the-counter (OTC) drugs is increasing on a global scale, and studies of phytochemical-OTC drug interactions are becoming more significant. The intake of dietary plants and herbs rich in phytochemicals may affect drug-metabolizing enzymes (DMEs) and transporters. These effects may lead to alterations in pharmacokinetics and pharmacodynamics of OTC drugs when concomitantly administered. Some phytochemical-drug interactions benefit patients through enhanced efficacy, but many interactions cause adverse effects. This review discusses possible mechanisms of phytochemical-OTC drug interactions mediated by phase I and II DMEs and phase III transporters. In addition, current information is summarized for interactions between phytochemicals derived from fruits, vegetables, and herbs and OTC drugs, and counseling is provided on appropriate and safe use of OTC drugs. | Truong, Van-Long; Jun, Mira; Jeong, Woo-Sik | Kyungpook Natl Univ, Coll Agr & Life Sci, Sch Food Sci & Biotechnol, Food & Bioind Res Inst, Daegu 41566, South Korea; Dong A Univ, Ctr Silver Targeted Biomat, Dept Food Sci & Nutr, Brain Busan 21 Plus Program,Grad Sch, Busan, South Korea | Jeong, Woo-Sik/AAN-6885-2020 | 55925363400; 16230761800; 10440750200 | wsjeong@knu.ac.kr; | JOURNAL OF MEDICINAL FOOD | J MED FOOD | 1096-620X | 1557-7600 | 24 | 8 | SCIE | CHEMISTRY, MEDICINAL;FOOD SCIENCE & TECHNOLOGY;NUTRITION & DIETETICS | 2021 | 2.542 | 67.0 | 0.65 | 2025-07-30 | 10 | 9 | cytochrome P450; pharmacodynamics; pharmacokinetics; self-medication | ST-JOHNS-WORT; GREEN TEA EXTRACT; GLYCOPROTEIN-MEDIATED TRANSPORT; CAMELLIA-SINENSIS EXTRACT; P-GLYCOPROTEIN; GRAPEFRUIT JUICE; GINKGO-BILOBA; UDP-GLUCURONOSYLTRANSFERASE; HUMAN LIVER; CYTOCHROMES P450 | cytochrome P450; pharmacodynamics; pharmacokinetics; self-medication | Drug Interactions; Fruit; Humans; Membrane Transport Proteins; Nonprescription Drugs; Phytochemicals; Vegetables; acetylsalicylic acid; berberine derivative; caffeine; Capsicum annuum extract; Cassia occidentalis extract; curcumin; cytochrome P450; Danshen gegen extract; dextromethorphan; drug metabolizing enzyme; epigallocatechin gallate; fexofenadine; flavone derivative; galgeuntang; garlic extract; Ginkgo biloba extract; ginseng extract; ginsenoside; Glycyrrhiza glabra root; grapefruit extract; Hypericum perforatum extract; ibuprofen; natural product; non prescription drug; nonsteroid antiinflammatory agent; Panax notoginseng extract; paracetamol; phytochemical; piperine; plant extract; protopanaxadiol; protopanaxatriol; quercetin; salicylic acid derivative; Salvia miltiorrhiza extract; saponin; Tamarindus indica extract; unclassified drug; Vitex negundo extract; xenobiotic agent; xuesaitong; carrier protein; non prescription drug; phytochemical; acute liver failure; aged; area under the curve; Article; biological activity; biotransformation; Capsicum annuum; drug absorption; drug bioavailability; drug clearance; drug efficacy; drug mechanism; drug overdose; drug potentiation; drug transport; elimination half-life; female; fruit; ginseng; herb; human; male; maximum concentration; molecular mechanics; mouse; nonhuman; orange juice; oxidation; phytochemistry; rat; Salvia miltiorrhiza; Senna occidentalis; single drug dose; systematic review; tamarind; time to maximum plasma concentration; vegetable; drug interaction; genetics | English | 2021 | 2021-08-01 | 10.1089/jmf.2021.k.0003 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |
| ○ | ○ | Article | The Decursin Analog, CYJ-27, Suppresses Inflammation Via the Downregulation of NF-κB and STAT-1 | CYJ-27, a synthetic analog of decursin, prevents the generation of proinflammatory cytokines and oxidative stress. In this study, the effects of CYJ-27 on the regulation of inducible nitric oxide synthase (iNOS), heme oxygenase (HO)-1, and cyclooxygenase (COX-)2 were characterized in lipopolysaccharide (LPS)-treated human umbilical vein endothelial cells (HUVECs). In addition, the effects of CYJ-27 on the production of iNOS and representative proinflammatory cytokines, such as tumor necrosis factor (TNF)-alpha and interleukin (IL)-1 beta, were tested in the lung tissues of LPS-treated mice. CYJ-27 promoted the expression of HO-1, suppressed NF-kappa B-luciferase activity, and reduced COX-2/PGE2 and iNOS/NO, resulting in a diminution in phosphorylated-STAT-1. Furthermore, CYJ-27 promoted the nuclear translocation of Nrf2, enhanced the combination of Nrf2 to antioxidant response elements, and diminished IL-1 beta production in LPS-activated HUVECs. CYJ-27-downregulated iNOS/NO expression was rescued after the RNAi suppression of HO-1. In LPS-treated mice, CYJ-27 significantly diminished iNOS production in the lung tissues and TNF-alpha expression in the bronchoalveolar lavage fluid. These findings indicate that CYJ-27 exerts anti-inflammatory activities by regulating iNOS through downregulation of both NF-kappa B activation and phosphorylated-STAT-1. Hence, it can act as a template for the development of novel substances to treat inflammatory diseases. | Lee, Wonhwa; Sim, Hyunchae; Choi, Yoon-Jung; Seo, Ju Young; Yun, Mi-Young; Song, Gyu Yong; Bae, Jong-Sup | Kyungpook Natl Univ, Pharmaceut Sci Res Inst, Coll Pharm, Daegu, South Korea; Korea Res Inst Biosci & Biotechnol, Aging Res Ctr, Daejeon, South Korea; Chungnam Natl Univ, Coll Pharm, 99 Daehak Ro, Daejon 34134, South Korea; Kwangju Women Univ, Dept Beauty Sci, Gwangju, South Korea | ; Lee, Wonhwa/GLQ-6506-2022; Bae, Jong-Sup/AAU-9724-2020 | 50161632800; 57219098739; 57222871850; 57218945287; 35886891300; 7402253074; 16021543200 | gysong@cnu.ac.kr;baejs@knu.ac.kr; | JOURNAL OF MEDICINAL FOOD | J MED FOOD | 1096-620X | 1557-7600 | 24 | 8 | SCIE | CHEMISTRY, MEDICINAL;FOOD SCIENCE & TECHNOLOGY;NUTRITION & DIETETICS | 2021 | 2.542 | 67.0 | 0.19 | 2025-07-30 | 4 | 3 | CYJ-27; endothelium; iNOS; p-STAT-1 | CARBON-MONOXIDE; RELEASE; COX-2; MODEL; GENE | CYJ-27; endothelium; iNOS; p-STAT-1 | Animals; Benzopyrans; Butyrates; Cyclooxygenase 2; Down-Regulation; Heme Oxygenase-1; Human Umbilical Vein Endothelial Cells; Humans; Inflammation; Lipopolysaccharides; Mice; NF-E2-Related Factor 2; NF-kappa B; Nitric Oxide; Nitric Oxide Synthase Type II; 3 8,8 dimethyl 7 [3 (4 methoxyphenyl)allyloxy] 7,8 dihydro 6h pyrano[3,2 g]chromen 2 one; antiinflammatory agent; cyclooxygenase 2; cyj 27; decursin derivative; heme oxygenase 1; immunoglobulin enhancer binding protein; inducible nitric oxide synthase; interleukin 1beta; Janus kinase; lipopolysaccharide; luciferase; messenger RNA; nitric oxide; nitrite; prostaglandin E2; STAT protein; STAT1 protein; transcription factor Nrf2; tumor necrosis factor; unclassified drug; benzopyran derivative; butyric acid derivative; cyclooxygenase 2; decursin; heme oxygenase 1; immunoglobulin enhancer binding protein; nitric oxide; transcription factor Nrf2; animal cell; animal experiment; animal model; animal tissue; antiinflammatory activity; antioxidant responsive element; Article; bronchoalveolar lavage fluid; controlled study; cytokine production; dose response; down regulation; drug mechanism; drug synthesis; enzyme inhibition; enzyme regulation; human; human cell; JAK-STAT signaling; lung injury; lung parenchyma; male; mouse; nonhuman; nuclear localization signal; protein expression; protein expression level; protein phosphorylation; RNA interference; signal transduction; upregulation; animal; genetics; inflammation; metabolism; umbilical vein endothelial cell | English | 2021 | 2021-08-01 | 10.1089/jmf.2021.k.0027 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |
| ○ | ○ | Article | Evaluation of the average grain size of polycrystalline graphene using an electrical characterization method | Graphene grown by chemical vapor deposition (CVD) is intrinsically polycrystalline. Since the electrical properties of graphene are degraded at grain boundaries, the performance of CVD graphene is significantly dependent upon its grain size. Thus, the evaluation of average grain size is of particular importance for the device applications of CVD graphene. However, conventional evaluation methods based on microscopic or spectroscopic measurements have limitations in accuracy due to limited inspection area and complicated processes. Here, we suggest an electrical characterization technique for precisely evaluating the average grain size of polycrystalline graphene. We found out that the sheet resistance of polycrystalline graphene is significantly dependent on device dimensions and this dependence is related to average grain size. For the evaluation of the average grain size, we synthesized CVD graphene layers with different growth conditions, fabricated transmission line model (TLM) patterns on the graphene layers, and measured the sheet resistance (R-S) as a function of channel length (L-ch). The average grain sizes of the CVD-graphene layers were extracted from a logistic function fitted to the measured RS-Lch curves. The results show that the average grain sizes of CVD graphene evaluated by the proposed electrical method are consistent with those evaluated from a large amount of microscopy images. | Park, Honghwi; Lee, Junyeong; Lee, Chang-Ju; Kim, Jaeeuk; Kang, Jaewoon; Noh, Hyowoong; Lee, Jonghyung; Park, Youngjin; Park, Jonghoo; Choi, Muhan; Park, Hongsik | Kyungpook Natl Univ, Sch Elect & Elect Engn, Daegu 41566, South Korea; Kyungpook Natl Univ, Sch Elect Engn, Daegu 41566, South Korea | Park, Honghwi/KIC-1871-2024; Lee, Chang-Ju/W-8546-2019 | 57206811785; 57210867037; 8943234400; 57207438768; 57207345841; 57209882167; 57227779600; 57227237200; 57196408322; 7402093793; 35366976200 | hpark@ee.knu.ac.kr; | SOLID-STATE ELECTRONICS | SOLID STATE ELECTRON | 0038-1101 | 1879-2405 | 186 | SCIE | ENGINEERING, ELECTRICAL & ELECTRONIC;PHYSICS, APPLIED;PHYSICS, CONDENSED MATTER | 2021 | 1.916 | 67.2 | 0.08 | 2025-07-30 | 1 | 1 | CVD graphene; Polycrystalline; Average grain size; Electrical characterization; TLM measurement | FILMS; BOUNDARIES; COPPER; TRANSPORT | Average grain size; CVD graphene; Electrical characterization; Polycrystalline; TLM measurement | Chemical vapor deposition; Function evaluation; Grain boundaries; Grain size and shape; Graphene; Sheet resistance; Average grain size; Chemical vapor depositions (CVD); Electrical characterization; Electrical methods; Logistic functions; Polycrystalline graphene; Spectroscopic measurements; Transmission line modeling; Graphene devices | English | 2021 | 2021-12 | 10.1016/j.sse.2021.108172 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Fabrication and characterization of GaN-based nanostructure field effect transistors | Two different types of GaN-based nanostructure FETs, such as FinFETs and gate-all-around (GAA) nanowire FETs, have been investigated along with discussing their important performances for a possible new application. The GaN-based FinFETs have better electrostatic control compared to conventional planar-type GaN-based HEMTs, which offers great performance improvement such as very low off-state leakage current, high breakdown voltage, high linearity with broad transconductance. Recent investigation demonstrated that an appropriately designed AlGaN/GaN-FinFETs could exhibit low saturation drain voltage and very fast switching characteristics with subthreshold swing of sub-60 mV dec, which indicates that they can be a promising candidate for low voltage/power logic application. GAA GaN nanowire FETs have even better electrostatic control and exhibit excellent device performances showing their potential low voltage/power logic applications. For clear understanding of the device performances, simulation including two models concerning the multi-level trapping effects and the self-heating effects has been conducted, which leads to good agreement with the experimental results. Negative transconductance and offset-like output characteristics, observed in the narrow nanowire devices, have been well explained using the deep trapping effect and the built-in potential at ohmic contact. Scaling of the nanowire FET has been implemented such as channel length, doping concentration, and diameter of nanowire, which helps to predict further improvement of the device performance. | Son, Dong-Hyeok; Thingujam, Terirama; Dai, Quan; Kim, Jeong-Gil; Cristoloveanu, Sorin; Lee, Jung-Hee | DB Hitek, Bucheon Si, Gyeonggi Do, South Korea; Kyungpook Natl Univ, Sch Elect & Elect Engn, Daegu, South Korea; Grenoble Inst Technol, Inst Microelect Electromagnetism & Photon, F-38016 Grenoble, France | 56681422800; 57194828103; 57200146404; 57203324876; 15076615300; 57196140713 | jlee@ee.knu.ac.kr; | SOLID-STATE ELECTRONICS | SOLID STATE ELECTRON | 0038-1101 | 1879-2405 | 184 | SCIE | ENGINEERING, ELECTRICAL & ELECTRONIC;PHYSICS, APPLIED;PHYSICS, CONDENSED MATTER | 2021 | 1.916 | 67.2 | 0.38 | 2025-07-30 | 5 | 8 | GaN; FinFETs; GAA nanowire FETs | CURRENT COLLAPSE; NANOWIRE MOSFETS; PERFORMANCE; SUPPRESSION; SILICON; PLANE | FinFETs; GAA nanowire FETs; GaN | Aluminum gallium nitride; Computer circuits; Electrostatics; FinFET; High electron mobility transistors; III-V semiconductors; Nanowires; Ohmic contacts; Transconductance; Doping concentration; Electrostatic control; Fabrication and characterizations; High breakdown voltage; Negative transconductance; Off-state leakage current; Output characteristics; Self-heating effect; Gallium nitride | English | 2021 | 2021-10 | 10.1016/j.sse.2021.108079 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | Article | High performance InGaAs channel MOSFETs on highly resistive InAlAs buffer layers | We investigated the effect of growth temperature on the structural and electrical properties of InAlAs layers grown on InP (1 0 0) substrates by metalorganic chemical vapor deposition (MOCVD) method. Flat surface morphology of InAlAs layers with root mean square (RMS) surface roughness values below 0.4 nm were obtained at 500 °C and 660 °C, while RMS surface roughness values of InAlAs layers grown in the region of intermediate temperature increase from 0.7 nm at 540 °C to 3.9 nm at 620 °C with increasing growth temperature. This increase in surface roughness is caused by the phase separation of the InAlAs layer, which is divided into In-rich and Al-rich column regions. The resistivity values of the InAlAs layers grown at 500 °C and 660 °C, in which the phase separation was not observed, were analyzed by the transmission line method (TLM) and those values were ~1 × 104 Ω·cm and 0.06 Ω·cm, respectively. We propose that oxygen atoms being incorporated into InAlAs layers during growth were the cause effect explaining the change in resistivity depending on the growth temperature. In order to evaluate high-resistivity InAlAs layers grown at 500 °C for a buffer layer of devices, we fabricated InGaAs-channel metal oxide field effect transistors (MOSFETs). The on/off current ratio values obtained from ID-VG transfer measurement was a value of 6.10 × 105, indicating a high-performance characteristic. © 2020 Elsevier Ltd | Lee, Sang Tae; Lee, In-Geun; Jang, Hyunchul; Kong, Minwoo; Song, Changhun; Kim, Chang Zoo; Jung, Sang Hyun; Choi, Youngsu; Kim, Shinkeun; Eom, Su-keun; Seo, Kwang-seok; Kim, Dae-Hyun; Ko, Dae-Hong; Shin, Chan-Soo | Korea Advanced Nanofab Center (KANC), South Korea; Department of Material Science and Engineering, Yonsei University, South Korea; Korea Advanced Nanofab Center (KANC), South Korea; Department of Electrical and Computer Engineering, Inter-university Semiconductor Research Center, Seoul National University, South Korea; Korea Advanced Nanofab Center (KANC), South Korea, Department of Material Science and Engineering, Yonsei University, South Korea; Korea Advanced Nanofab Center (KANC), South Korea; Korea Advanced Nanofab Center (KANC), South Korea; Korea Advanced Nanofab Center (KANC), South Korea; Korea Advanced Nanofab Center (KANC), South Korea; Department of Electrical and Computer Engineering, Inter-university Semiconductor Research Center, Seoul National University, South Korea; Department of Electrical and Computer Engineering, Inter-university Semiconductor Research Center, Seoul National University, South Korea; School of Electronics Engineering, Kyungpook National University (KNU), South Korea; Department of Material Science and Engineering, Yonsei University, South Korea; Korea Advanced Nanofab Center (KANC), South Korea | 57221766125; 37016357200; 55860474200; 57203878627; 57221682710; 35090158800; 57223651939; 57214147989; 36602671500; 56320249500; 58711653100; 57212363794; 16240618000; 57201540732 | dhko@yonsei.ac.kr; | Solid-State Electronics | SOLID STATE ELECTRON | 0038-1101 | 1879-2405 | 176 | SCIE | ENGINEERING, ELECTRICAL & ELECTRONIC;PHYSICS, APPLIED;PHYSICS, CONDENSED MATTER | 2021 | 1.916 | 67.2 | 0.54 | 2025-07-30 | 9 | Compensation effects; High resistivity InAlAs buffer; InGaAs channel MOSFETs; MOCVD | Buffer layers; Gallium compounds; Growth temperature; III-V semiconductors; Indium phosphide; Metallorganic chemical vapor deposition; Metals; Morphology; MOSFET devices; Phase separation; Semiconducting indium; Semiconducting indium gallium arsenide; Semiconducting indium phosphide; Semiconductor alloys; Surface morphology; High performance characteristics; Intermediate temperatures; Metal oxide field effect transistors; ON/OFF current ratio; Root mean square (rms) surface roughness; Structural and electrical properties; Transfer measurements; Transmission line methods; Surface roughness | English | Final | 2021 | 10.1016/j.sse.2020.107940 | 바로가기 | 바로가기 | 바로가기 | ||||||||
| ○ | ○ | Article | Importance of Architectural Asymmetry for Improved Triboelectric Nanogenerators with 3D Spacer Fabrics | We investigated the importance of architectural asymmetry to improve the output voltage of the triboelectric nanogenerators (TENGs) with polyester/spandex blend 3D spacer fabrics. Different types of TENGs were fabricated by stacking the 3D spacer fabrics, polydimethylsiloxane (PDMS) films, and electrodes with different stack configurations. The 3D spacer fabric TENGs fabricated with higher architectural asymmetry exhibited higher output voltages than those fabricated with lower architectural asymmetry. In particular, the TENG with the PDMS/fabric/fabric configuration exhibited the highest maximum peak-to-peak output voltage among all types. The prominent increase in the TENG output voltage was ascribed to the relatively high architectural asymmetry in the device configuration and the relatively high effective density of triboelectric charges. | Kwon, Jin-Hyuk; Jeong, Jaebum; Lee, Youngju; Biswas, Swarup; Park, Jun-Kyu; Lee, Suwoong; Lee, Dong-Wook; Lee, Sohee; Bae, Jin-Hyuk; Kim, Hyeok | Kyungpook Natl Univ, Sch Elect & Elect Engn, Daegu 415663, South Korea; Korea Inst Ceram Engn & Technol KICET, Nano Mat Nano Technol Ctr, Jinju 52851, South Korea; Korea Inst Ind Technol KITECH, Appl Robot R&D Dept, Ansan 15588, South Korea; Univ Seoul, Inst Informat Technol, Sch Elect & Comp Engn, 163 Seoulsiripdaero,Dongdaemun Gu, Seoul 02504, South Korea; Gyeongsang Natl Univ, Res Inst Nat Sci, Dept Clothing & Text, 501 Jinjudaero, Jinju 52828, Gyeongsangnamdo, South Korea; Kyungpook Natl Univ, Sch Elect Engn, Daegu 41566, South Korea | ; Biswas, Swarup/AAH-5067-2019 | 7202469243; 57208145522; 57222758878; 7402251506; 57193059569; 57188756166; 55516365700; 37056928800; 35326180700; 57191718658 | sohee.lee@gnu.ac.kr;jhbae@ee.knu.ac.kr;hyeok.kim@uos.ac.kr; | MACROMOLECULAR RESEARCH | MACROMOL RES | 1598-5032 | 2092-7673 | 29 | 6 | SCIE | POLYMER SCIENCE | 2021 | 2.127 | 67.2 | 0.68 | 2025-07-30 | 9 | 10 | triboelectric nanogenerator; 3D spacer fabric; output voltage; architectural asymmetry | DESIGN | 3D spacer fabric; architectural asymmetry; output voltage; triboelectric nanogenerator | Architecture; Fabrication; Microchannels; Polydimethylsiloxane; Silicones; Triboelectricity; 3d spacer fabric; Architectural asymmetry; Higher output voltages; Nanogenerators; Output voltages; Peak-to-peak; Spacer fabrics; Stack configurations; Stackings; Triboelectric nanogenerator; Nanogenerators | English | 2021 | 2021-06 | 10.1007/s13233-021-9052-1 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |
| ○ | ○ | Article | Mechanism of Proton-Induced electrical degradation of AlGaN/GaN high electron mobility transistors | We studied the mechanism of the proton-induced electrical degradation of AlGaN/GaN high electron mobility transistors (HEMTs) through 5-MeV proton irradiation. First, the AlGaN/GaN heterostructure was exposed to protons with a fluence of 1 x 10(15)p/cm(2) to investigate the relationship between the radiation-caused damage in the heterostructure and the electrical characteristics of HEMTs. The HEMTs fabricated on a proton-irradiated AlGaN/GaN heterostructure showed slight degradation in dc characteristics and a positive shift in threshold voltage, compared with the HEMTs fabricated on an unirradiated heterostructure. This indicated that the proton radiation-induced defects in the AlGaN/GaN heterostructure were not dominant factors of characteristic degradation. After additional proton irradiation into both devices, more severe degradation in electrical characteristics was confirmed. The HEMTs fabricated on a proton-irradiated heterostructure showed the largest characteristic degradation in this work. It is expected that the secondary particles, attributed from the collision of proton and metal contacts such as ohmic and schottky, can cause the creation of additional defects, leading to significant degradation of device characteristics. In addition, the pre-existing defects in AlGaN/GaN heterostructures created first proton irradiation can also influence the characteristic degradation of devices. | Kim, Dong-Seok; Kim, Jeong-Gil; Lee, Jun-Hyeok; Hwang, Yong Seok; Yoon, Young Jun; Lee, Jae Sang; Bae, Youngho; Lee, Jung-Hee | Korea Atom Energy Res Inst, Korea Multipurpose Accelerator Complex, Gyeongju 38180, South Korea; Kyungpook Natl Univ, Coll IT Engn, Sch Elect & Elect Engn, Daegu 41566, South Korea; Wavice Inc, Hwasung, South Korea; Uiduk Univ, Dept IT Convergence, Gyeongju 38004, South Korea | Lee, Jong Hui/JFT-0292-2023 | 55642581500; 57203324876; 55929424400; 55584791466; 57218864885; 7601467686; 7201466031; 57196140713 | dongseokkim@kaeri.re.kr;jlee@ee.knu.ac.kr; | SOLID-STATE ELECTRONICS | SOLID STATE ELECTRON | 0038-1101 | 1879-2405 | 175 | SCIE | ENGINEERING, ELECTRICAL & ELECTRONIC;PHYSICS, APPLIED;PHYSICS, CONDENSED MATTER | 2021 | 1.916 | 67.2 | 0.15 | 2025-07-30 | 5 | 5 | AlGaN/GaN; HEMT; Proton irradiation effect; Electrical degradation; Mechanism; Displacement damage effect; Secondary particle | HEMTS | AlGaN/GaN; Displacement damage effect; Electrical degradation; HEMT; Mechanism; Proton irradiation effect; Secondary particle | Aluminum gallium nitride; Defects; Electron mobility; Gallium nitride; III-V semiconductors; Proton irradiation; Threshold voltage; AlGaN/GaN heterostructures; Algan/gan high electron-mobility transistors; DC characteristics; Device characteristics; Electrical characteristic; Electrical degradation; Proton radiations; Secondary particles; High electron mobility transistors | English | 2021 | 2021-01 | 10.1016/j.sse.2021.107957 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Polyaniline-Graphitic Carbon Nitride Based Nano-Electrocatalyst for Fuel Cell Application: A Green Approach with Synergistic Enhanced Behaviour | In this work, a metal free polyaniline nanorod (PANI-NR) with graphitic carbon nitride (GCN) nanocomposite has been synthesized by solar irradiation approach an acidic medium without the assistance of any surfactant and template. As synthesized PANI-NR/GCN nanocomposite was characterized by morphology studies, which found that the average diameter of the PANI-NR was 500 to 600 nm and the length of the nanorod range from 3 to 3.5 mu m where GCN randomly dispersed on the surface of PANI-NR. The elemental composition, structural and vibrational spectra of PANI-NR/GCN are observed through EDX, Mapping, XRD, and FT-IR studies. Subsequently, the synthesized PANI-NR/GCN nanocomposite was used as an electrocatalyst, which was characterized through cyclic voltammetry, impedance, and chronoamperometric studies. The fabricated PANI-NR/GCN modified electrode shows significant electrocatalytic activity, lower charge resistance, high stability, and longevity towards methanol oxidation reaction (MOR) in an alkaline medium. | Madaswamy, Suba Lakshmi; Wabaidur, Saikh Mohammad; Khan, Mohammad Rizwan; Lee, Soo Chool; Dhanusuraman, Ragupathy | Natl Inst Technol Puducherry, Dept Chem, Nano Electrochem Lab NEL, Pondicherry 609609, Karaikal, India; King Saud Univ, Dept Chem, Coll Sci, Adv Mat Res Chair, Riyadh 11451, Saudi Arabia; Kyungpook Natl Univ, Res Inst Adv Energy Technol, Daegu 41566, South Korea | wabaidur, Saikh/Z-1450-2019; Khan, Mohammad Rizwan/D-7966-2014 | 57222147966; 24336563700; 32867808100; 8524020100; 23668492700 | ragu.nitpy@gmail.com; | MACROMOLECULAR RESEARCH | MACROMOL RES | 1598-5032 | 2092-7673 | 29 | 6 | SCIE | POLYMER SCIENCE | 2021 | 2.127 | 67.2 | 1.67 | 2025-07-30 | 20 | 24 | green synthesis; PANI-NR/GCN; metal free electrocatalyst; methanol oxidation reaction; DMFC | SUPPORTED PALLADIUM NANOPARTICLES; METHANOL OXIDATION; FORMIC-ACID; COUNTER ELECTRODES; CATALYSTS; NANOCOMPOSITES; NANOFIBERS; BLACK | DMFC; green synthesis; metal free electrocatalyst; methanol oxidation reaction; PANI-NR/GCN | Carbon nitride; Cyclic voltammetry; Electrocatalysts; Fuel cells; Methanol; Morphology; Nanocomposites; Fuel cell application; Graphitic carbon nitrides; Green synthesis; Metal free; Metal-free electrocatalysts; Methanol oxidation reactions; Polyaniline nanorod/graphitic carbon nitride; Polyaniline nanorods; Solar irradiation; Synthesised; Nanorods | English | 2021 | 2021-06 | 10.1007/s13233-021-9044-1 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |
| ○ | ○ | Editorial Material | Preface | Lee, Jung-Hee; Kwon, Soon-Yong; Lee, Hi-Deok; Song, Taigon | Kyungpook Natl Univ, Sch Elect & Elect Engn, Daegu, South Korea; UNIST, Sch Mech & Adv Mat Engn, Ulsan, South Korea; UNIST, Dept Elect Engn, Ulsan, South Korea | Kwon, Soon-Yong/F-4744-2010 | 57196140713; 57224173619; 57224163639; 36005021000 | SOLID-STATE ELECTRONICS | SOLID STATE ELECTRON | 0038-1101 | 1879-2405 | 183 | SCIE | ENGINEERING, ELECTRICAL & ELECTRONIC;PHYSICS, APPLIED;PHYSICS, CONDENSED MATTER | 2021 | 1.916 | 67.2 | 0 | 2025-07-30 | 0 | 0 | English | 2021 | 2021-09 | 10.1016/j.sse.2021.108030 | 바로가기 | 바로가기 | 바로가기 | 바로가기 |
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