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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 | Sheaf Theoretic Compactifications of the Space of Rational Quartic Plane Curves | Let R-4 be the space of rational plane curves of degree 4. In this paper, we obtain a sheaf theoretic compactification of R-4 via the space of alpha-semistable pairs on P-2 and its birational relations through wall-crossings of semistable pairs. We obtain the Poincare polynomial of the compactified space. | Chung, Kiryong | Kyungpook Natl Univ, Dept Math Educ, 80 Daehakro, Daegu 41566, South Korea | 47061194800 | krchung@knu.ac.kr; | TAIWANESE JOURNAL OF MATHEMATICS | TAIWAN J MATH | 1027-5487 | 2224-6851 | 25 | 3 | SCIE | MATHEMATICS | 2021 | 0.87 | 57.2 | 0.22 | 2025-07-30 | 1 | 1 | plane rational curves; compactification; birational geometry | MODULI SPACES; STABLE PAIRS; GEOMETRY; POLYNOMIALS | Birational geometry; Compactification; Plane rational curves | English | 2021 | 2021-06 | 10.11650/tjm/210103 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Optical-Dissymmetry Phase Transitions in an Achiral Helical-Spring Polymer through Controlled Noncovalent Interactions | Noncovalent chemistry may offer diversity in the functions and applications for artificial polymers by allowing various ordered-disordered phase transitions in a precisely controlled manner. To verify this notion from a fundamental perspective, we examined an achiral poly(phenylacetylene) derivative with an a-helical structure as a helical-spring polymer for revealing phase changes through control of intramolecular hydrogen bonding with the chiral solvent and temperature. When an amine capable of hydrogen bonding was used as the chiral solvent, either an irreversible helix-helix or a reversible helix-coil phase change occurred in an optically dissymmetric manner according to the amount of the chiral solvent added and ambient temperature. Considering the hydrogen-bonding strength values of the solvent mixture and the thermodynamic parameters, we could predict if the optical-dissymmetry phase changes would occur and, if so, how they occur. Our results were similar to those see for the denaturation of proteins, induced by solvent and temperature, based on helix-coil phase transition. | Jin, Young-Jae; Kim, Hyojin; Lee, Jineun; Kim, Heesang; Aoki, Toshiki; Kwak, Giseop | Kyungpook Natl Univ, Dept Polymer Sci & Engn, Sch Appl Chem Engn, Polymer Nanomat Lab, Daegu 702701, South Korea; Korea Res Inst Chem Technol KRICT, Reliabil Assessment Ctr Chem Mat, Daejeon, South Korea; Daegu Technopk Nano Convergence Pract Applicat Ct, Daegu 704801, South Korea; Niigata Univ, Dept Chem & Chem Engn, Grad Sch Sci & Technol, Niigata 9502181, Japan; Niigata Univ, Ctr Transdisciplinary Res, Niigata 9502181, Japan | , Giseop/M-8370-2018 | 55307815700; 57202516002; 57226333374; 57226091356; 7404613515; 17137322300 | toshaoki@eng.niigata-u.ac.jp;gkwak@knu.ac.kr; | JOURNAL OF PHYSICAL CHEMISTRY B | J PHYS CHEM B | 1520-6106 | 1520-5207 | 125 | 29 | SCIE | CHEMISTRY, PHYSICAL | 2021 | 3.466 | 57.3 | 0.46 | 2025-07-30 | 7 | 6 | SENSE-SELECTIVE POLYMERIZATION; PROTEIN; CHAIN; DENATURATION; DESIGN; POLYPEPTIDES; CONFORMATION; RIGIDITY | Hydrogen Bonding; Molecular Conformation; Polymers; Solvents; Temperature; Hydrogen; Hydrogen bonds; Ions; Polymers; Solvents; Springs (components); Stereochemistry; Temperature; polymer; solvent; Helical structures; Hydrogen-bonding strength; Intramolecular hydrogen bonding; Non-covalent; Non-covalent interaction; Polyphenylacetylene; Solvent mixtures; Thermodynamic parameter; conformation; hydrogen bond; temperature; Phase transitions | English | 2021 | 2021-07-29 | 10.1021/acs.jpcb.1c05345 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Scaling relations for width of the power excess of stellar oscillations | Relations between global asteroseismic quantities allow us to derive fundamental stellar parameters. To obtain an insight into solar-like pulsators by an accurate estimate of stellar property requires to explore various scaling relations other than commonly-exploited ones as well as to calibrate the dependence of those over a range of metallicity, mass and evolutionary status of stars. We investigate statistical properties of the width of the Gaussian envelope delta nu(env) for the stellar oscillation power excess by analyzing light curves of 160 stars observed with short-cadence mode by Kepler. We consider the envelope width as important because it measures the efficiency of excitation and damping of solar-like oscillations due to the turbulence in the outer convective envelope. We attempt to fit a single slope power-law and a broken power-law to relations of delta nu(env) with nu(max) and Delta nu resulting from three different background models, each of which delineates the red-noise of the stellar power spectrum. A goodness of fit is provided in term of chi(2). In the case of a single slope fit the resulting slope ends up with delta nu(env)/mu Hz proportional to (nu(max)/mu Hz)(similar to 1.47) and delta nu(env)/mu Hz proportional to(Delta nu/mu Hz)(-1.83) on average, which is somewhat steeper than a previous outcome for red giants. Fitting with two distinct slopes at breaks of nu(max) similar to 850 mu Hz and Delta nu similar to 50 mu Hz, however, suits in the power-law fit than with a single slope in general. Direct fitting in nu(max) - n(env)plot yields the power-law index +0.53, apparently steeper than previously reported slope from red giants. The origin of breaks can be illustrated by the attributes in the delta nu(env)-distribution of main-sequence and sub-giant stars in the seismic H-R diagram. | Kim, Ki-Beom; Chang, Heon-Young | Kyungpook Natl Univ, Dept Astron & Atmospher Sci, Daegu 4156, South Korea; BK21 Plus Program, Res & Training Team Future Creat Astrophysicists, Daegu 4156, South Korea | 56190958000; 7407524806 | hyc@knu.ac.kr; | NEW ASTRONOMY | NEW ASTRON | 1384-1076 | 1384-1092 | 84 | SCIE | ASTRONOMY & ASTROPHYSICS | 2021 | 2.096 | 57.3 | 1.05 | 2025-07-30 | 7 | 9 | Asteroseismology; Methods: Data analysis; Stars: Fundamental parameters | SOLAR-LIKE OSCILLATIONS; MAIN-SEQUENCE; RED GIANTS; MULTISITE CAMPAIGN; KEPLER STARS; ASTEROSEISMOLOGY; PARAMETERS; POPULATIONS; AMPLITUDES; MISSION | Asteroseismology; Methods: Data analysis; Stars: Fundamental parameters | English | 2021 | 2021-04 | 10.1016/j.newast.2020.101522 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||||
| ○ | ○ | Article | Sorption of phenols on hexadecyltrimethylammonium- modified bentonite: Application of Polanyi-Manes potential theory | This study investigated the sorption of phenol and 4-chlorophenol (4-CP) on natural bentonite modified with hexadecyltrimethylammonium (HDTMA) cation. The Freundlich, Langmuir, Dubinin-Radushkevich (DR), Sips, and Polanyi-Dubinin-Manes (PDM) models fitted the sorption data well (R-2 > 0.92). The Freundlich coefficient and the maximum sorbed amount of the Langmuir and PDM models of 4-CP were higher than phenol because of higher hydrophobicity (log K-ow = 2.39 for 4-CP and 1.46 for phenol). The PDM model that includes solubility and molar volume was highly useful in predicting the sorption of phenols having widely different hydrophobicity and solubility. The characteristic curves, the plot of sorbed volume (q(v)) versus the sorption potential per molar volume (epsilon/V-m) of 4-CP and phenol were distinctly different although they have similar chemical compositions. The selectivity of 4-CP (3.72) was higher than that of phenol (0.27) in binary sorption systems. The sorbed volume (q(v)) in the binary sorption was remarkably reduced and the characteristic curve had wider distribution owing to competition in pore-filling. The sorption behaviors were elucidated by partitioning and pore-filling mechanisms. Among the tested binary sorption models, the modified Langmuir competitive model was the best in the prediction of the binary sorption (R-2 > 0.98). | Choi, Jiyeon; Song, Dong-Ik; Shin, Won Sik | Kyungpook Natl Univ, Sch Architecture Civil Environm & Energy Engn, Daegu, South Korea; Kyungpook Natl Univ, Dept Chem Engn, Daegu, South Korea | 57211707591; 7402443648; 23019870800 | wshin@knu.ac.kr; | ENERGY & ENVIRONMENT | ENERG ENVIRON-UK | 0958-305X | 2048-4070 | 32 | 5 | SSCI | ENVIRONMENTAL STUDIES | 2021 | 3.154 | 57.4 | 0.11 | 2025-07-30 | 2 | 3 | HDTMA-bentonite; partitioning; phenols; polanyi potential theory; pore-filling; sorption | HYDROPHOBIC ORGANIC-CHEMICALS; AQUEOUS-SOLUTIONS; COMPETITIVE ADSORPTION; P-NITROPHENOL; WATER; ISOTHERM; ORGANOBENTONITE; MODEL; ACID; DYES | HDTMA-bentonite; partitioning; phenols; polanyi potential theory; pore-filling; sorption | Bentonite; Delta sigma modulation; Hydrophobicity; Phenols; Solubility; Volume measurement; 4-chlorophenol (4-cp); Characteristic curve; Chemical compositions; Competitive models; Hexadecyltrimethylammonium; Modified bentonites; Sorption behaviors; Sorption potential; ammonium; bentonite; cation; chemical composition; hydrophobicity; partitioning; phenol; pore space; surfactant; Sorption | English | 2021 | 2021-08 | 10.1177/0958305x20977286 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Effect of synthesis parameters of cold-setting melamine-urea-formaldehyde resins on the adhesion in wood bonding | This work studied the effect of the synthesis parameters (i.e. synthesis method and melamine content) on the adhesion of cold-setting melamine-urea-formaldehyde (MUF) resins in wood bonding. Two types of cold-setting MUF resins were synthesized: MUF-A resins with three melamine contents (30, 40, and 50 wt%) prepared by the simultaneous reaction of urea, formaldehyde, and melamine, and MUF-B resins with the same melamine levels but synthesized by a sequential reaction process of melamine with formaldehyde and urea. The curing behaviors of both resins were characterized by differential scanning calorimetry (DSC) and dynamic mechanical analysis (DMA), and their adhesion performance in the dry and wet states were compared in block-shear strength (BSS) and wood failure (WF) tests. As the melamine content increased, the viscosity and peak temperature (T-p ) of the resins increased. However, MUF-B resins showed lower activation energy (E-a ) than those of MUF-A resins. Dynamic and isothermal DMA scans also showed that MUF-B resins also had greater maximum storage modulus (E '(max)) than those of MUF-A resins in their neat resins and resins/wood composites, indicating stronger interphase adhesion and cohesion. Lower T-p , lower E-a , and higher E '(max), of MUF-B resins than those of MUF-A resins resulted in higher BSS and WF of MUF-B resins in wood bonding. In particular, MUF-B resins with 40% melamine showed the highest BSS and WF. These results indicate that the MUF resin synthesis method is closely related to the adhesion performance in wood bonding. | Kim, Minseok; Park, Byung-Dae; Hong, Soon-Il | Kyungpook Natl Univ, Dept Wood & Paper Sci, Daegu, South Korea; Kangwon Natl Univ, Coll Forest & Environm Sci, Chunchon, South Korea | Park, Byung-Dae/ABB-1934-2020 | 59076211400; 7402834820; 56161227000 | byungdae@knu.ac.kr; | JOURNAL OF ADHESION SCIENCE AND TECHNOLOGY | J ADHES SCI TECHNOL | 0169-4243 | 1568-5616 | 35 | 21 | SCIE | ENGINEERING, CHEMICAL;MATERIALS SCIENCE, MULTIDISCIPLINARY;MECHANICS | 2021 | 2.431 | 57.6 | 0.53 | 2025-07-30 | 7 | 10 | Cold-setting; MUF resins; synthesis parameter; interphase; adhesion | SYSTEMS | adhesion; Cold-setting; interphase; MUF resins; synthesis parameter | Activation Energy; Adhesion; Curing; Formaldehyde; Metabolism; Urea; Activation energy; Adhesion; Curing; Differential scanning calorimetry; Formaldehyde; Metabolism; Resins; Urea; Wood; Activation energies (Ea); Adhesion performance; Block shear strengths; Dynamic mechanical analysis (DMA); Melamine urea formaldehydes; Melamine-urea-formaldehyde resin; Simultaneous reactions; Synthesis parameters; Urea formaldehyde resins | English | 2021 | 2021-11-02 | 10.1080/01694243.2021.1885902 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |
| ○ | ○ | Article | In-situ modification of low molar ratio urea-formaldehyde resins with cellulose nanofibrils for plywood | This study describes the in-situ modification of low molar ratio urea-formaldehyde (UF) resins with cellulose nanofibrils (CNFs) to improve the poor performance of resins synthesized with different methods (Synth 1 and Synth 2) when adding second urea. UF resins were in-situ modified with CNFs dissolved in a mixture of dimethyl sulfoxide (DMSO) and dimethylformamide (DMF) during the alkaline reaction step. Results showed that CNF addition enhanced the resin properties, such as shorter gelation time, faster curing rates at low activation energy, higher tensile shear strength (TSS), and lower formaldehyde emission (FE), compared to those of neat resins. The dry and wet TSS values of plywood bonded with UF resins modified with 3% CNFs synthesized using Synth 2 increased by 30% and 42%, respectively, and the FE value was decreased by 22% and 42%, respectively. These results reveal that in-situ modified UF resins with CNFs showed better performance than neat UF resins and that Synth 2 was more favorable than Synth 1. | Wibowo, Eko Setio; Lubis, Muhammad Adly Rahandi; Park, Byung-Dae | Kyungpook Natl Univ, Dept Wood & Paper Sci, Daegu, South Korea; Indonesian Inst Sci LIPI, Res Ctr Biomat, Cibinong, Indonesia | Lubis, Muhammad/K-2440-2019; Park, Byung-Dae/ABB-1934-2020; Wibowo, Eko/AAL-5888-2021 | 57214910272; 57192278476; 7402834820 | byungdae@knu.ac.kr; | JOURNAL OF ADHESION SCIENCE AND TECHNOLOGY | J ADHES SCI TECHNOL | 0169-4243 | 1568-5616 | 35 | 22 | SCIE | ENGINEERING, CHEMICAL;MATERIALS SCIENCE, MULTIDISCIPLINARY;MECHANICS | 2021 | 2.431 | 57.6 | 1.59 | 2025-07-30 | 23 | 29 | Urea– formaldehyde resins; cellulose nanofibrils; in-situ modification; activation energy; adhesion; formaldehyde emission | activation energy; adhesion; cellulose nanofibrils; formaldehyde emission; in-situ modification; Urea–formaldehyde resins | Activation Energy; Cellulose; Dimethyl Sulfoxide; Formaldehyde; Gelation; Metabolism; Activation energy; Cellulose; Cellulose nanocrystals; Dimethyl sulfoxide; Dimethylformamide; Formaldehyde; Gelation; Metabolism; Molar ratio; Nanofibers; Organic solvents; Plywood; Resins; Urea; Wood products; Alkaline reaction; Cellulose nanofibrils; Cellulose nanofibrils (CNFs); Dimethyl sulfoxide (DMSO); Formaldehyde emission; Low-activation energy; Situ modification; Tensile shear strength; Urea formaldehyde resins | English | 2021 | 2021-11-17 | 10.1080/01694243.2021.1890370 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Effects of the perceived trustworthiness of the government and connectedness to nature on payments for ecosystem services: A case study of national parks in South Korea | National parks, generally known as public lands, allow people to experience diverse ecosystem services. However, some parts of the national parks, known as inholdings, remain privately owned. This has caused conflicts among different stakeholders, particularly concerning the conservation of these inholdings. The government wants to resolve these conflicts by compensating landowners through taxation financing amounting to the value of the lands, a scheme known as payments for ecosystem services (PES). However, before implementing this type of environmental policy, it is essential to understand whether the public would support it. This study therefore aims to examine how some factors-perceived trustworthiness of the government, connectedness to nature, attitudes, and subjective norms-are interconnected in influencing support for PES. Data were collected through an online survey and analyzed using structural equation modeling. The study results revealed that while all relationships were significant, perceived trustworthiness was a key factor. The study also discusses the theoretical and practical implications. Management implications: The study demonstrated the importance of improving trustworthiness of the government and strengthen the connectedness to nature to promote the public support for payment for ecosystem services. It is recommended that the government to hold regular public meetings to address new environmental policies to all relevant stakeholders. Through these meetings, the government should improve the public's trustworthiness by demonstrating their integrity, benevolence, and ability. To enhance perceived integrity, decision making processes involving proposed policies need to be transparent and reliable. Furthermore, the government should maximize public benefits while demonstrating its ability to achieve policy goals and secure the public interest. In addition, educating people about the importance of the ecosystem services provided by forests could prove crucial in enhancing their emotional connection with nature. | Lee, Jenni Soo-Hee; Oh, Chi-Ok | Kyungpook Natl Univ, Div Environm & Ecotourism, 2559 Gyeongsangdae Ro, Sangju 37224, South Korea; Chonnam Natl Univ, Grad Sch Culture, 77 Yongbong Ro, Gwangju 61186, South Korea | 57201076247; 8639541300 | jdmr0503@gmail.com;chiokoh@jnu.ac.kr; | JOURNAL OF OUTDOOR RECREATION AND TOURISM-RESEARCH PLANNING AND MANAGEMENT | J OUTDOOR REC TOUR | 2213-0780 | 2213-0799 | 36 | SSCI | HOSPITALITY, LEISURE, SPORT & TOURISM | 2021 | 3.462 | 57.8 | 0.4 | 2025-07-30 | 9 | 9 | Payments for ecosystem services; Perceived trustworthiness of the government; Connectedness to nature; Theory of reasoned action; Structural equation modeling | WILLINGNESS-TO-PAY; PLANNED BEHAVIOR; PLACE ATTACHMENT; REASONED ACTION; POLITICAL TRUST; SOCIAL-PSYCHOLOGY; CONSERVATION; ATTITUDES; VALUATION; INTENTION | Connectedness to nature; Payments for ecosystem services; Perceived trustworthiness of the government; Structural equation modeling; Theory of reasoned action | English | 2021 | 2021-12 | 10.1016/j.jort.2021.100446 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||||
| ○ | ○ | Article | Progressive alteration of DNA methylation of Alu, MGMT, MINT2, and TFPI2 genes in colonic mucosa during colorectal cancer development | BACKGROUND: Colorectal cancer (CRC) is one of the leading causes of mortality and morbidity in the world. It is characterized by different pathways of carcinogenesis and is a heterogeneous disease with diverse molecular landscapes that reflect histopathological and clinical information. Changes in the DNA methylation status of colon epithelial cells have been identified as critical components in CRC development and appear to be emerging biomarkers for the early detection and prognosis of CRC. OBJECTIVE: To explore the underlying disease mechanisms and identify more effective biomarkers of CRC. METHODS: We compared the levels and frequencies of DNA methylation in 11 genes (Alu, APC, DAPK, MGMT, MLHJ, MINT1, MINT2, MINT31, p16, RGS6, and TFPI2) in colorectal cancer and its precursor adenomatous polyp with normal tissue of healthy subjects using pyrosequencing and then evaluated the clinical value of these genes. RESULTS: Aberrant methylation of Alu, MGMT, MINT2, and TFPI2 genes was progressively accumulated during the normaladenoma-carcinoma progression. Additionally, CGI methylation occurred either as an adenoma-associated event for APC, MLH1, MINT1, MINT31, p16, and RGS6 or a tumor-associated event for DAPK. Moreover, relatively high levels and frequencies of DAPK, MGMT, and TFPI2 methylation were detected in the peritumoral nonmalignant mucosa of cancer patients in a field-cancerization manner, as compared to normal mucosa from healthy subjects. CONCLUSION: This study identified several biomarkers associated with the initiation and progression of CRC. As novel findings, they may have important clinical implications for CRC diagnostic and prognostic applications. Further large-scale studies are needed to confirm these findings. | Kang, Ben; Lee, Hyun Seok; Jeon, Seong Woo; Park, Soo Yeun; Choi, Gyu Seog; Lee, Won Kee; Heo, Somi; Lee, Duk Hee; Kim, Dong Sun | Kyungpook Natl Univ, Dept Pediat, Daegu, South Korea; Kyungpook Natl Univ, Biomed Res Inst, Daegu, South Korea; Kyungpook Natl Univ, Dept Internal Med, Daegu, South Korea; Kyungpook Natl Univ, Dept Gen Surg, Daegu, South Korea; Kyungpook Natl Univ, Dept Prevent Med, Daegu, South Korea; Kyungpook Natl Univ, Sch Med, Dept Anat, 2-101 Dongin Dong, Daegu 702422, South Korea | Kim, Dae/AAJ-7518-2021; Jeon, Seongwoo/AAU-4618-2020; Lee, Hyun/D-5004-2011; 康, 奔/JMQ-0812-2023 | 57194823199; 36647886100; 9733636500; 40561578300; 8058759100; 22953484700; 57204934087; 57211851121; 57125070500 | doskim@knu.ac.kr; | CANCER BIOMARKERS | CANCER BIOMARK | 1574-0153 | 1875-8592 | 32 | 2 | SCIE | ONCOLOGY | 2021 | 3.828 | 57.8 | 0.73 | 2025-07-30 | 10 | 12 | Colon mucosa; normal-adenoma-carcinoma; DNA methylation; pyrosequencing; biomarkers | FIELD CANCERIZATION; PHENOTYPE; BIOMARKERS | biomarkers; Colon mucosa; DNA methylation; normal-adenoma-carcinoma; pyrosequencing | Adenomatous Polyps; Alu Elements; Biomarkers, Tumor; Biopsy; Cadherins; Carcinogenesis; Case-Control Studies; Colon; Colonoscopy; Colorectal Neoplasms; Disease Progression; DNA Methylation; DNA Modification Methylases; DNA Repair Enzymes; Early Detection of Cancer; Glycoproteins; Healthy Volunteers; Humans; Intestinal Mucosa; Nerve Tissue Proteins; Prognosis; Tumor Suppressor Proteins; APBA2 protein, human; cadherin; DNA ligase; DNA methyltransferase; glycoprotein; MGMT protein, human; nerve protein; tissue-factor-pathway inhibitor 2; tumor marker; tumor suppressor protein; adenomatous polyp; Alu repeat; biopsy; carcinogenesis; case control study; colon; colonoscopy; colorectal tumor; disease exacerbation; DNA methylation; early cancer diagnosis; genetics; human; intestine mucosa; mortality; normal human; pathology; procedures; prognosis | English | 2021 | 2021 | 10.3233/cbm-203259 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |
| ○ | ○ | Article | Advanced visualization using image super-resolution method for three-dimensional mobile system | A three-dimensional mobile system with advanced visualization based on image super-resolution method is proposed and implemented. Here, real object information is acquired using three-dimensional scanning, and the three-dimensional visualizations of the object with the improved resolution are displayed on the mobile display with user interaction functionality. Unlike the previous methods, an advanced visualization method displays the resolution-enhanced reconstructed images without the degradation of the quality. From the experimental results, the proposed system presented clearer visualizations of the object, and the quantitative evaluation methods confirm that the proposed system provides the higher-resolution visualizations of the real object without loss of quality on the mobile display. | Erdenebat, Munkh-Uchral; Piao, Yan-Ling; Kwon, Ki-Chul; Lee, Moung Hee; Kwon, Ki Hoon; Kim, Min Young; Kim, Nam | Chungbuk Natl Univ, Sch Informat & Commun Engn, 1 Chungdae Ro, Cheongju 28644, Chungbuk, South Korea; Kyungpook Natl Univ, Sch Elect Engn, 80 Daehak Ro, Daegu 41566, South Korea | 36166588400; 55842643500; 7201503212; 57219330845; 57190749004; 56739349100; 35494120000 | namkim@chungbuk.ac.kr; | OPTICS COMMUNICATIONS | OPT COMMUN | 0030-4018 | 1873-0310 | 480 | SCIE | OPTICS | 2021 | 2.335 | 57.9 | 0.63 | 2025-07-30 | 8 | 9 | 3D mobile system; Computer-generated integral imaging; Advanced visualization method | DISPLAY | 3D mobile system; Advanced visualization method; Computer-generated integral imaging | Image enhancement; Optical resolving power; Visualization; Advanced visualizations; Higher resolution; Image super resolutions; Quantitative evaluation methods; Reconstructed image; Three dimensional visualization; Three-dimensional scanning; User interaction; Three dimensional computer graphics | English | 2021 | 2021-02-01 | 10.1016/j.optcom.2020.126494 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Advantage of Balloon Guide Catheter During Endovascular Treatment of Direct Carotid-Cavernous Sinus Fistula: Technical Note and Report of 2 Cases | BACKGROUND: As previous studies reported, the ballon guide catheter is useful for identifying the fistula point during diagnosis of direct carotid-cavernous sinus fistula (d-CCF). We demonstrate an additional advantage of the balloon guide catheter during intraarterial endovascular treatment of d-CCF. METHODS: Two cases of d-CCF are presented in this -port. A balloon guide catheter is used to help achieve successful coil embolization of the fistula in both cases. RESULTS: Microcatheter positioning into the fistulous point can be easier after balloon inflation. Balloon inflation can help with coil deployment. CONCLUSIONS: Using a balloon guiding catheter can reduce internal carotid artery flow near the fistula point at the cavernous segment of the internal carotid artery. As a result, better identification of the fistula point can be made, which allows easier placement of the microcatheter into the fistula point and more stable coil deployment. | Son, Wonsoo; Kang, Dong-Hun; Park, Jaechan; Kwak, Youngseok; Kim, Myungsoo; Kim, Byung-Jun | Kyungpook Natl Univ, Dept Neurosurg, Sch Med, Daegu, South Korea; Kyungpook Natl Univ, Dept Radiol, Sch Med, Daegu, South Korea | 36676729400; 8977805800; 44661451000; 57204667265; 57210943611; 57219417683 | kdhdock@hotmail.com; | WORLD NEUROSURGERY | WORLD NEUROSURG | 1878-8750 | 1878-8769 | 145 | SCIE | CLINICAL NEUROLOGY;SURGERY | 2021 | 2.21 | 58.0 | 0.26 | 2025-07-30 | 2 | 2 | Balloon occlusion; Carotid-cavernous sinus fistula; Embolization | Balloon occlusion; Carotid-cavernous sinus fistula; Embolization | Accidents, Traffic; Adult; Carotid Artery, Internal; Carotid-Cavernous Sinus Fistula; Catheterization; Catheters; Cerebral Angiography; Embolization, Therapeutic; Endovascular Procedures; Humans; Magnetic Resonance Imaging; Male; Tomography, X-Ray Computed; Young Adult; heparin; adult; Article; balloon occlusion; basal cistern; brain angiography; carotid cavernous fistula; case report; cavernous sinus; clinical article; coil embolization; computed tomographic angiography; computer assisted tomography; diplopia; ecchymosis; epidural hematoma; exophthalmos; heparinization; human; internal carotid artery; male; nuclear magnetic resonance imaging; subarachnoid hemorrhage; vertebral angiography; young adult; artificial embolization; carotid cavernous fistula; catheter; catheterization; devices; endovascular surgery; procedures; traffic accident; x-ray computed tomography | English | 2021 | 2021-01 | 10.1016/j.wneu.2020.09.058 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||||
| ○ | ○ | Article | Fracture behaviors at inclusions of very-high-cycle fatigue in newly developed clean bearing steel | Bearing steel is essential for the driving parts of the rotating body, but fisheye crack of inclusions such as TiN, Al2O3 and Cr matrix is formed in the very-high-cycle fatigue (VHCF) regime. Therefore, research on the development of a clean bearing steel that reduces the size of inclusion such as TiN or that does not contain inclusion has been made recently. In this study, the results of long-term attempts by the maker to improve the performance and quality of bearing steel for very long life were quantitatively analyzed from the viewpoint of fracture mechanics. In other words, the phase transformation properties, VHCF characteristics with ultrasonic nanocrystal surface modification (UNSM) treatment and fracture mechanics analysis of this clean bearing are compared quantitatively with those of other common bearing steels from the viewpoint of engineering and industrial applications. The quenching and tempering (QT) specimens of the clean bearing showed fisheye cracks and duplex S-N curves in the VHCF regime. The fisheye crack of the clean bearing steel was an internal fatigue crack caused by a small inclusion mainly composed of Al2O3 in the VHCF region. However, fisheye cracking due to TiN and Cr matrix, which was observed in other common bearing steels, did not occur in the clean bearing steel due to the efforts of the developers of new clean bearing. | Suh, Min-Soo; Nahm, Seung-Hoon; Suh, Chang-Min; Lee, Seul-Bi | Korea Inst Energy Res, Daejeon 34129, South Korea; Korea Res Inst Stand & Sci, Daejeon 34113, South Korea; Kyungpook Natl Univ, Sch Mech Engn, Daegu Campus, Daegu 41566, South Korea; Pusan Natl Univ, Sch Mat Sci & Engn, Busan Campus, Busan 46241, South Korea | 15060716600; 35220422900; 7102970945; 57195514384 | mssuh@kier.re.kr;shnahm@kriss.re.kr;cmsuh@knu.ac.kr;seulbi0921@pusan.ac.kr; | INTERNATIONAL JOURNAL OF MODERN PHYSICS B | INT J MOD PHYS B | 0217-9792 | 1793-6578 | 35 | 26 | SCIE | PHYSICS, APPLIED;PHYSICS, CONDENSED MATTER;PHYSICS, MATHEMATICAL | 2021 | 1.404 | 58.0 | 0.83 | 2025-07-30 | 9 | 8 | Fisheye crack; very high cycle fatigue; bearing steel; inclusion; duplex S-N curves; ultrasonic nanocrystal surface modification | MICROCRACKS; LIFE | bearing steel; duplex S - N curves; Fisheye crack; inclusion; ultrasonic nanocrystal surface modification; very high cycle fatigue | English | 2021 | 2021-10-20 | 10.1142/s0217979221502684 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Revision of the phylogeny of Placididea (Stramenopiles): Molecular and morphological diversity of novel placidid protists from extreme aquatic environments | Recent studies suggested that the diversity of microbial eukaryotes in hypersaline environments is widely underestimated. Placidids are a group of heterotrophic stramenopile flagellates that are frequently found in these environments, but up to now only very few species were isolated and fully described, mostly from marine or brackish water sites. In this study, we extend the known diversity of Placididea by three new genera (Allegra, Haloplacidia, and Placilonga) compromising nine new species, isolated from athalassic, mostly hypersaline environments (Allegra dunaii, Allegra atacamiensis, Allegra hypersalina, Haloplacidia cosmopolita, Suigetsumonas keniensis) and marine waters (Placilonga atlantica, Placidia azorensis, Placidia abyssalis, Wobblia pacifica) including a description of their morphology and molecular phylogeny. In total, 36 strains were comparatively analysed. Studies from athalassic waters revealed an especially high number of different genotypes. A multi gene analysis based on a ten genes dataset revealed a clear separation into marine, athalassic and brackish water clades. Several representatives were found to cope with hypersaline conditions from 20 to 250 PSU, even up to 284 PSU, suggesting that they may form a halotolerant group. (C) 2021 Elsevier GmbH. All rights reserved. | Rybarski, Alexandra E.; Nitsche, Frank; Park, Jong Soo; Filz, Paulina; Schmidt, Patricia; Kondo, Ryuji; Simpson, Alastair Gb; Arndt, Hartmut | Univ Cologne, Bioctr Cologne, Inst Zool, Dept Gen Ecol, Zuelpicher Str 47b, D-50674 Cologne, Germany; Kyungpook Natl Univ, Sch Earth Syst Sci, Dept Oceanog, Daegu 41566, South Korea; Fukui Prefectural Univ, Dept Marine Sci & Technol, Obama, Fukui 9170003, Japan; Dalhousie Univ, Dept Biol, Halifax, NS B3H 4R2, Canada | ; Park, Jong/AAJ-3576-2020; Filz, Paulina/JFS-0038-2023; Arndt, Hartmut/K-9364-2017 | 57216617046; 24067445600; 23486274100; 57214318480; 57300451400; 7102404983; 7402780491; 7006693108 | Hartmut.Arndt@uni-koeln.de; | EUROPEAN JOURNAL OF PROTISTOLOGY | EUR J PROTISTOL | 0932-4739 | 1618-0429 | 81 | SCIE | MICROBIOLOGY | 2021 | 3.471 | 58.0 | 0.81 | 2025-07-30 | 10 | 11 | Atacama Desert; Athalassic waters; Salinity tolerance; Extremophiles; Multigene analysis; Placididea | FACULTATIVE ANAEROBIC NANOFLAGELLATE; RNA; GEN.; CRASPEDIDA; COMMUNITY; ABUNDANCE; INSIGHTS; WATER; NOV. | Atacama Desert; Athalassic waters; Extremophiles; Multigene analysis; Placididea; Salinity tolerance | Extreme Environments; Phylogeny; Stramenopiles; extreme environment; genetics; phylogeny; stramenopile | English | 2021 | 2021-10 | 10.1016/j.ejop.2021.125809 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Sustained Drug Release from a Microcontainer Fabricated Using a Polydimethylsiloxane Stencil | In this study, sustained and pH-responsive delivery of drugs were conducted using sealed microcontainers (MCs). The MCs were fabricated using a polydimethylsiloxane (PDMS) stencil. The polymer solution was filled into holes of the stencil space; then, the organic solvent was evaporated to obtain MCs. Poly(lactic-co-glycolic acid) (PLGA) was used as the material for the MCs. The MCs were sealed by covering them with a lid layer after filling the model drug-metronidazole-into the MCs. The diameter and height of the fabricated MCs were 500 and 350 mu m, respectively. The drug delivery of sealed MCs was analyzed using the absorbance of the released drug while varying the pH and observing the FE-SEM image, before and after drug release. MCs are expected to be useful in various biomedical applications of drug delivery and microfluidic systems by supporting various functional materials in pH-responsive MCs. | Choi, Hye Jin; Zhu, Mingzhe; Kim, Daeyoung; Choi, Jin Ho; Kim, Chul Min; Jeong, Young Hun; Kim, Gyu Man | Kyungpook Natl Univ, Sch Mech Engn, 80 Daehak Ro, Daegu 41566, South Korea; Korea Evaluat Inst Ind Technol, 32,Cheomdan Ro 8 Gil, Daegu 41069, South Korea; KIFLEX Co Ltd, Gyongsan 38412, Gyeongsangbuk D, South Korea; Gyeongsang Natl Univ, Dept Mechatron Engn, 33 Dongjin Ro, Jinju 52725, Gyeongnam, South Korea | Kim, Chul-Min/ABI-6131-2020 | 57203969417; 57274999200; 57274261400; 56145661300; 59316640400; 56501196300; 55664733000 | hyejin0058@gmail.com;shennongpuzhong@naver.com;daeyoung@knu.ac.kr;chlwlsgh01@gmail.com;cm@gnu.ac.kr;yhjeong@knu.ac.kr;gyuman.kim@knu.ac.kr; | INTERNATIONAL JOURNAL OF PRECISION ENGINEERING AND MANUFACTURING | INT J PRECIS ENG MAN | 2234-7593 | 2005-4602 | 22 | 11 | SCIE | ENGINEERING, MANUFACTURING;ENGINEERING, MECHANICAL | 2021 | 2.041 | 58.0 | 0.21 | 2025-07-30 | 3 | 3 | Microcontainer; pH-responsive; Drug release; Solvent evaporation method; Micro stencil | ORAL BIOAVAILABILITY; DELIVERY; NANOPARTICLES; MICRODEVICES; RETENTION; SYSTEMS; DEVICE | Drug release; Micro stencil; Microcontainer; pH-responsive; Solvent evaporation method | Controlled drug delivery; Drug products; Filled polymers; Functional materials; Medical applications; Polydimethylsiloxane; Silicones; Targeted drug delivery; Drug release; Metronidazole; Micro stencil; Microcontainer; Model drugs; PH-responsive; Poly lactic-co-glycolic acid; Poly(lactic-co-glycolic acid); Solvent evaporation method; Sustained drug release; Fabrication | English | 2021 | 2021-11 | 10.1007/s12541-021-00581-3 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |
| ○ | ○ | Article | Thrust Force-Based Tool Wear Estimation Using Discrete Wavelet Transformation and Artificial Neural Network in CFRP Drilling | Currently, carbon fiber-reinforced plastic (CFRP) is a material with potential uses for various industries due to its excellent properties. However, the severe tool wear in its machining is an evitable problem because it deteriorates product quality and productivity at the same time. Timely replacement of the tool should be taken in advance to reduce the influences of this drawback. In sum, the accurate estimation of the tool wear plays a crucial role in CFRP machining. Therefore, in this study, a tool wear estimation in CFRP drilling is presented. The method used is based on discrete wavelet transformation (DWT) of the thrust force signal and an artificial neural network (ANN). Two valuable features related to tool wear are identified and then extracted using DWT. The tool wear is estimated by using an ANN with two features adapted from DWT. Consequently, the tool wear, especially flank wear, in CFRP drilling can be accurately estimated using the proposed method. | Han, Chengwen; Kim, Kyeong Bin; Lee, Seok Woo; Jun, Martin Byung-Guk; Jeong, Young Hun | Kyungpook Natl Univ, Dept Mech Engn, 80 Daehakro, Daegu 41566, South Korea; Korea Inst Ind Technol, Dongnam Reg Div, 804 Baegyang Daero, Busan 46938, South Korea; Purdue Univ, Sch Mech Engn, 585 Purdue Mall, W Lafayette, IN 47907 USA; Kyungpook Natl Univ, Sch Mech Engn, 80 Daehakro, Daegu 41566, South Korea | ; Lee, Seok-Woo/D-8205-2011 | 57226199105; 57221132852; 55716389200; 24587060000; 56501196300 | 531295911@qq.com;kkb4615@gmail.com;swlee@kitech.re.kr;mbgjun@purdue.edu;yhjeong@knu.ac.kr; | INTERNATIONAL JOURNAL OF PRECISION ENGINEERING AND MANUFACTURING | INT J PRECIS ENG MAN | 2234-7593 | 2005-4602 | 22 | 9 | SCIE | ENGINEERING, MANUFACTURING;ENGINEERING, MECHANICAL | 2021 | 2.041 | 58.0 | 1.4 | 2025-07-30 | 24 | 25 | Carbon fiber-reinforced plastic (CFRP); Drilling; Tool wear; Thrust force; Discrete wavelet transformation (DWT); Artificial neural network (ANN) | MECHANISMS; DESIGN; MODEL | Artificial neural network (ANN); Carbon fiber-reinforced plastic (CFRP); Discrete wavelet transformation (DWT); Drilling; Thrust force; Tool wear | Carbon fiber reinforced plastics; Discrete wavelet transforms; Graphite fibers; Infill drilling; Neural networks; Plastics industry; Signal reconstruction; Wear of materials; Accurate estimation; Carbon fiber reinforced plastics (CFRP); Discrete wavelet transformation; Flank wear; Thrust forces; Tool wear; Tool wear estimations; Cutting tools | English | 2021 | 2021-09 | 10.1007/s12541-021-00558-2 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |
| ○ | ○ | Article | Usefulness of Oblique Lumbar Interbody Fusion as Revision Surgery: Comparison of Clinical and Radiological Outcomes Between Primary and Revision Surgery | -OBJECTIVE: Oblique lumbar interbody fusion (OLIF) is useful as surgical treatment of degenerative lumbar disease. However, revision surgery has often resulted in worse surgical outcomes than primary surgery. Thus, we compared the usefulness of OLIF as primary surgery (PS) versus revision surgery (RS). - METHODS: We retrospectively investigated 173 patients who had undergone single-level OLIF from 2016 to 2018. The radiological and clinical outcomes were compared between PS (n = 152) and RS (n = 21). The effects of RS on the clinical outcomes (Oswestry Disability Index [ODI] cutoff, 12) after surgery were investigated. -RESULTS: The ODI and visual analog scale score at 6 and 12 months after surgery was worse in the RS group than in the PS group (P < 0.05). In the RS group, the visual analog scale score for leg pain of the previous laminectomy side was worse than that of the virgin side at 6 and 12 months after surgery (P < 0.05). The disc height, ligamentum flavum, and subsidence did not differ between the 2 groups. However, the cross-sectional area enlargement differed between the 2 groups (P < 0.05). Multivariate logistic regression analysis showed that RS and severe subsidence were risk factors for differences in the ODI (P = 0.006 and P = 0.017, respectively). -CONCLUSIONS: Most radiological outcomes were similar between the RS and PS groups, with no differences in complications or the requirement for additional posterior decompression. However, OLIF resulted in relatively poor clinical outcomes when used as RS. Thus, revision spine surgery tends to result in poor outcomes compared with those of primary spine surgery; however, OLIF can be a tolerable option for revision spine surgery. | Jung, JinWoo; Lee, Subum; Cho, Dae-Chul; Han, In-Bo; Kim, Chi Heon; Lee, Young-Seok; Kim, Kyoung-Tae | Kyungpook Natl Univ, Sch Med, Dept Neurosurg, Daegu, South Korea; Kyungpook Natl Univ Hosp, Dept Neurosurg, Daegu, South Korea; CHA Univ, CHA Bundang Med Ctr, Dept Neurosurg, Sch Med, Seongnam, South Korea; Seoul Natl Univ, Dept Neurosurg, Coll Med, Seoul, South Korea; Kyungpook Natl Univ, Chilgok Hosp, Dept Neurosurg, Daegu, South Korea | Kim, Chi/J-6536-2019; Lee, Subum/AFQ-2764-2022 | 57222116456; 57193631061; 55859543400; 9338449900; 35145892000; 57203798682; 57201369790 | nskimkt7@gmail.com; | WORLD NEUROSURGERY | WORLD NEUROSURG | 1878-8750 | 1878-8769 | 149 | SCIE | CLINICAL NEUROLOGY;SURGERY | 2021 | 2.21 | 58.0 | 1.3 | 2025-07-30 | 11 | 12 | Indirect decompression; Oblique lumbar interbody fusion; Revision surgery | INDIRECT DECOMPRESSION; REOPERATION | Indirect decompression; Oblique lumbar interbody fusion; Revision surgery | Aged; Disability Evaluation; Female; Humans; Intervertebral Disc Degeneration; Lumbar Vertebrae; Male; Middle Aged; Neurosurgical Procedures; Pain Measurement; Reoperation; Retrospective Studies; Risk Factors; Spinal Fusion; Treatment Outcome; aged; Article; clinical outcome; controlled study; cross-sectional study; decompression; female; human; laminectomy; leg pain; ligamentum flavum; major clinical study; male; oblique lumbar interbody fusion; Oswestry Disability Index; reoperation; retrospective study; risk factor; spine fusion; treatment outcome; visual analog scale; diagnostic imaging; disability; intervertebral disk degeneration; lumbar vertebra; middle aged; neurosurgery; pain measurement; procedures; reoperation; spine fusion; treatment outcome | English | 2021 | 2021-05 | 10.1016/j.wneu.2020.12.172 | 바로가기 | 바로가기 | 바로가기 | 바로가기 |
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