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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
Article Highly deformable and hierarchical 3D composite sponge for versatile thermoelectric energy conversion Adopting organic materials enables the realization of flexible and wearable film-type thermoelectric generators (TEGs) due to high deformability, whereas the low thermoelectric (TE) properties and thin thickness of harvesters impede the realization of multipurpose energy conversion. Herein, flexible and compressible TEGs were designed by the porous TE composite sponges made of coating PVDF-based TE solutions on the porous polymeric template structure. The porous TE sponges were investigated by the change in the concentration of CNTs in the composites, and the applied compressive strains, respectively. The optimized n- and p-type TE sponges showed the power factor of 0.546 nW/mK2 and 3.534 nW/mK2, respectively, under a low compressive strain of 10 %. The electrical response dependent on vertical/horizontal temperature gradient (Delta T) and compressive strain of porous unicouple TEG were measured carefully. The unicouple TEG generates electrical output of 16.08 mV, 0.935 mu A, and 3.92 nW when the vertical Delta T is 70 K. Furthermore, the large-area porous TEGs with an area of 9 x 9 cm2 generates an output power of 0.148 nW from human body heat and 4.22 nW from the overheated vacuum pump. These results pave the way to design other efficient organic-inorganic composite-based TEGs for harnessing the real-time ambient and industrial heat environments. Park, Jong Min; Baek, Changyeon; Lee, Min-Ku; Alluri, Nagamalleswara Rao; Lee, Gyoung-Ja; Kim, Kyung Tae; Park, Kwi-Il Kyungpook Natl Univ, Dept Mat Sci & Met Engn, 80 Daehak Ro, Daegu 41566, South Korea; Korea Inst Mat Sci, Nano Mat Res Div, 797 Changwon Daero, Chang Won 51508, Gyeongnam, South Korea; Korea Atom Energy Res Inst, Nucl Syst Integr Sensing & Diag Res Div, Daejeon 34057, South Korea; Kyungpook Natl Univ, Res Inst Automot Parts & Mat, 80 Daehak Ro, Daegu 41566, South Korea; Kyungpook Natl Univ, Innovat Semicond Educ & Res Ctr Future Mobil, 80 Daehak Ro, Daegu 41566, South Korea ; Park, Kwiil/LKN-9445-2024; Alluri, Nagamalleswara Rao/K-1696-2015 59074019700; 57095549400; 59302175900; 56527074500; 8588965200; 56984373000; 35280874200 leegj@kaeri.re.kr; ktkim@kims.re.kr; kipark@knu.ac.kr; APPLIED SURFACE SCIENCE APPL SURF SCI 0169-4332 1873-5584 692 SCIE CHEMISTRY, PHYSICAL;MATERIALS SCIENCE, COATINGS & FILMS;PHYSICS, APPLIED;PHYSICS, CONDENSED MATTER 2024 6.9 10.9 0 2025-05-07 0 0 Thermoelectric; Porous composite; Energy harvesting; Seebeck coefficient; Hierarchical CARBON; PERFORMANCE; GRAPHENE Energy harvesting; Hierarchical; Porous composite; Seebeck coefficient; Thermoelectric Energy harvesting; Thermoelectric energy conversion; Vacuum pumps; 3D composites; Compressive strain; Energy; Hierarchical; Organic materials; Porous composites; Seebeck; Thermoelectric; Thermoelectric energy; Thermoelectric generators; Seebeck coefficient English 2025 2025-05-30 10.1016/j.apsusc.2025.162730 바로가기 바로가기 바로가기 바로가기
Article Improved thermal stability of FeNiCo-based nanocrystalline soft magnetic alloys enabled by Ni segregation in the amorphous matrix Recently, the growing need to minimize energy losses and enhance the performance of electronic devices has underscored the importance of developing soft magnetic materials. Specifically, high-frequency alternating current (AC) applications demand soft magnetic materials with excellent thermal stability and high electrical resistivity. In this study, we designed FeCoNi-based amorphous alloys with the composition (Fe, Ni)82.5 _ xCoxSi8B4P4C1.5 (x = 0, 5, 10, 15 at%). Among the alloys, the (Fe, Ni)67.5Co15Si8B4P4C1.5 alloy displayed crystallization behavior with a single body-centered cubic phase after annealing at temperatures ranging from 350-500 degrees C for 288 h. Following crystallization, the microstructure of the alloy comprised spherical crystallites embedded within a residual amorphous matrix, stabilized by Ni species expelled during crystallization. Annealing at 500 degrees C produced a finer grain structure compared to that at 350 degrees C, owing to the higher nucleation rate observed at elevated temperatures. This unique microstructure characterized by nanocrystallites embedded within a stable amorphous matrix enabled the (Fe, Ni)67.5Co15Si8B4P4C1.5 alloy, annealed at 500 degrees C, to exhibit excellent thermal stability at high temperatures, along with favorable soft magnetic properties. Furthermore, the electrical resistivity of the nanocrystalline alloy exceeded 138 mu S2 center dot cm, surpassing the resistivities of commercial polycrystalline, amorphous, and nanocrystalline soft magnetic alloys. These attributes highlight its potential as a promising material for high-frequency AC applications. Choi, Kwangsu; Jung, Chanwon; Yi, Seonghoon Kyungpook Natl Univ, Dept Mat Sci & Met Engn, Daegu 41566, South Korea; Pukyong Natl Univ, Dept Mat Sci & Engn, Busan 48513, South Korea 57199499063; 57195481133; 14008383000 c.jung@pknu.ac.kr; yish@knu.ac.kr; JOURNAL OF ALLOYS AND COMPOUNDS J ALLOY COMPD 0925-8388 1873-4669 1014 SCIE CHEMISTRY, PHYSICAL;MATERIALS SCIENCE, MULTIDISCIPLINARY;METALLURGY & METALLURGICAL ENGINEERING 2024 6.3 10.9 2.35 2025-05-07 1 1 Thermal stability; Electrical resistivity; Soft magnetic properties; Nanocrystalline alloy HIGH B-S; FE-NI; CU Electrical resistivity; Nanocrystalline alloy; Soft magnetic properties; Thermal stability Amorphous alloys; Iron alloys; Lead alloys; Nanocrystalline alloys; Nanocrystallites; Nanocrystals; Nickel alloys; Silicon alloys; Soft magnetic materials; Ternary alloys; Amorphous matrices; Electrical resistivity; Energy; High frequency alternating current; Nanocrystallines; Performance; Soft magnetic alloys; Soft magnetics; Soft-magnetic properties; Thermal; Cobalt alloys English 2025 2025-02-05 10.1016/j.jallcom.2025.178690 바로가기 바로가기 바로가기 바로가기
Article In-situ electrical resistance monitoring of vanadium oxide reduction The reduction process of vanadium oxide was monitored by measuring its in-situ electrical resistance. V2O5 films deposited on c-Al2O3 were annealed in a hydrogen environment and exhibited a sharp decrease in resistance at similar to 350 degrees C, followed by a slight increase at similar to 460 degrees C. Subsequent analyses confirmed that the noticeable resistance changes during the annealing process could be attributed to the reduced vanadium oxidation states. These results indicate that the variations in the resistance of the vanadium oxide films are directly related to the changes in their oxidation states. Therefore, in-situ electrical measurements can provide insights into the changes in the chemical state of vanadium oxide. Son, Yeongjun; Song, Sehwan; Lee, Dooyong; Han, Seonghoon; Lee, Jisung; Kwon, Seyoung; Jeon, Jinho; Bae, Jong-Seong; Kim, Hyun Ho; Kang, Haeyong; Park, Sungkyun Pusan Natl Univ, Dept Phys, Busan 46241, South Korea; Kyungpook Natl Univ, Dept Phys Educ, Daegu 41566, South Korea; Korea Basic Sci Inst, Ctr Sci Instrumentat, Daejeon 34133, South Korea; Korea Basic Sci Inst, Yeongnam Reg Ctr, Busan 46742, South Korea; Kumoh Natl Inst Technol, Dept Energy Engn Convergence, Gumi 39177, South Korea; Kumoh Natl Inst Technol, Sch Mat Sci & Engn, Gumi 39177, South Korea; Pusan Natl Univ, Nucl Sci Res Inst, Busan 46241, South Korea; Pusan Natl Univ, Res Ctr Dielect & Adv Matter Phys, Busan 46241, South Korea 58511002800; 57194115102; 56199505400; 57969341600; 57192440339; 59379033800; 57970455700; 7201386925; 55808014500; 7404071606; 10539429300 psk@pusan.ac.kr; JOURNAL OF ALLOYS AND COMPOUNDS J ALLOY COMPD 0925-8388 1873-4669 1029 SCIE CHEMISTRY, PHYSICAL;MATERIALS SCIENCE, MULTIDISCIPLINARY;METALLURGY & METALLURGICAL ENGINEERING 2024 6.3 10.9 N/A 1 1 Vanadium oxides; Oxidation; Reduction; Chemical state variation VO2; TRANSITION; OXIDATION; PHASE; V2O5; TEMPERATURE Chemical state variation; Oxidation; Reduction; Vanadium oxides % reductions; Chemical state; Chemical state variation; Electrical resistance monitoring; Electrical resistances; Oxidation state; Oxide reduction; Reduction process; Resistance change; Vanadium oxides; Phase measurement English 2025 2025-05-20 10.1016/j.jallcom.2025.180705 바로가기 바로가기 바로가기 바로가기
Article Interior W2,δ type estimates for degenerate fully nonlinear elliptic equations with Ln data ☆ We establish interior W2,delta type estimates for a class of degenerate fully nonlinear elliptic equations with Lndata. The main idea of our approach is to slide C1,alpha cones, instead of paraboloids, vertically to touch the solution, and estimate the contact set in terms of the measure of the vertex set. This shows that the solution has tangent C1,alpha cones almost everywhere, which leads to the desired Hessian estimates. Accordingly, we are able to develop a kind of counterpart to the estimates for divergent structure quasilinear elliptic problems, as discussed in [6,16]. (c) 2025 Elsevier Inc. All rights are reserved, including those for text and data mining, AI training, and similar technologies. Byun, Sun-Sig; Kim, Hongsoo; Oh, Jehan Seoul Natl Univ, Res Inst Math, Dept Math Sci, Seoul 08826, South Korea; Seoul Natl Univ, Dept Math Sci, Seoul 08826, South Korea; Kyungpook Natl Univ, Dept Math, Daegu 41566, South Korea 8350569400; 59452159300; 56673305300 byun@snu.ac.kr; rlaghdtn98@snu.ac.kr; jehan.oh@knu.ac.kr; JOURNAL OF FUNCTIONAL ANALYSIS J FUNCT ANAL 0022-1236 1096-0783 289 6 SCIE MATHEMATICS 2024 1.6 10.9 0 2025-05-07 0 0 Fully nonlinear elliptic equation; Interior W 2,delta estimates; Degenerate elliptic equations HARNACK INEQUALITY; PARTIAL REGULARITY Degenerate elliptic equations; Fully nonlinear elliptic equation; Interior W<sup>2,δ</sup> estimates English 2025 2025-09-15 10.1016/j.jfa.2025.111007 바로가기 바로가기 바로가기 바로가기
Article Liquid crystal alignment reveals enhanced macroscale ordering of self-assembled monolayers on anisotropic substrates Self-assembled monolayers (SAMs) are ultra-thin organic films capable of precisely tailoring the physical and chemical properties of substrate surfaces. In this study, we demonstrate that introducing anisotropic morphology into the substrate effectively guides the lateral diffusion of SAM molecules along predefined directions during the self-assembly process, thereby reducing random molecular orientation at the macroscale. Notably, amplified optical signals obtained through liquid crystal (LC) texture analysis were used to visualize defects arising from molecular alignment within the SAM, while a multi-level analysis of surface energy, molecular packing density, and alignment quality further enhanced the precision of LC-based texture interpretation. These findings demonstrate that the proposed bottom-up strategy is broadly applicable across a wide range of alkyl chain lengths and may serve as a versatile platform for advanced electronic and optoelectronic substrate applications. Choi, Jun-Chan; Park, Ji-Sub; Shin, Young-Chul; Chung, Seungjun; Kim, Hak-Rin Kyungpook Natl Univ, Sch Elect & Elect Engn, Daegu 41566, South Korea; Korea Univ, Sch Elect Engn, Seoul 02841, South Korea; LG Display Co Ltd, Paju 10845, Gyeonggi Do, South Korea; Kyungpook Natl Univ, Sch Elect Engn, Daegu 41566, South Korea Kim, Hak-Rin/T-1897-2019 57033068900; 39262218000; 57195222983; 24069715700; 7410124944 rineey@knu.ac.kr; APPLIED SURFACE SCIENCE APPL SURF SCI 0169-4332 1873-5584 708 SCIE CHEMISTRY, PHYSICAL;MATERIALS SCIENCE, COATINGS & FILMS;PHYSICS, APPLIED;PHYSICS, CONDENSED MATTER 2024 6.9 10.9 0 2025-06-11 0 0 Self-assembled monolayers; Molecular ordering; Anisotropic substrate engineering; Surface modification; Liquid crystal texture analysis CHAIN-LENGTH; ALKYLTRICHLOROSILANES; DEFECTS; GROWTH Anisotropic substrate engineering; Liquid crystal texture analysis; Molecular ordering; Self-assembled monolayers; Surface modification Crystal chemistry; Liquid crystals; Self assembly; Anisotropic substrate engineering; Anisotropic substrates; Crystal texture; Liquid crystal texture analyze; Liquid-crystals; Macroscales; Molecular ordering; Substrate engineering; Surface-modification; Texture analysis; Ultrathin films English 2025 2025-11-01 10.1016/j.apsusc.2025.163666 바로가기 바로가기 바로가기 바로가기
Article Molecular interactions of amino acids for corrosion control in molybdenum CMP through bridging experimental insights and DFT simulations As semiconductor devices scale below the 3 nm node, Mo is a promising replacement for Cu due to its superior electromigration resistance and lower diffusivity in dielectric layers. However, controlling Mo corrosion during chemical mechanical planarization (CMP) remains challenging. This study explores eco-friendly amino acids, including glycine, aspartic acid, arginine, histidine, and methionine, as corrosion inhibitors in acidic slurries, focusing on the roles of their functional groups. Electrochemical analyses show that amino acids with strong electron-donating groups (arginine, histidine, and methionine) effectively suppress Mo ion dissolution. Density functional theory calculations confirm their stable adsorption onto MoO2 surfaces, with the guanidinium group in arginine and the thioether group in methionine enhancing adsorption energies and stabilizing the Mo surface. X-ray photoelectron spectroscopy reveals that electron-donating amino acids preserve Mo0 states, mitigating corrosion under oxidizing conditions. Arginine provides strong corrosion protection but reduces the material removal rate (MRR), while methionine achieves a balance by reducing the static etch rate to 26 & Aring;/min and maintaining an MRR of 255 & Aring;/min. These findings demonstrate the potential of biodegradable, electron-rich amino acids as sustainable inhibitors for Mo CMP. Optimization of molecular structures enables corrosion control, improved removal efficiency, and environmentally friendly semiconductor processing. Ryu, Seokgyu; Moinpour, Mansour; Rawat, Ashwani; Kim, Patrick Joohyun; Podlaha, Elizabeth J.; Seo, Jihoon Clarkson Univ, Dept Chem & Biomol Engn, Potsdam, NY 13699 USA; EMD Elect, Elect CTO Off, San Diego, CA USA; Intel Corp, Technol Dev, Santa Clara, CA USA; Kyungpook Natl Univ, Dept Appl Chem, Daegu, South Korea Seo, Jihoon/ABI-6972-2020 57192435552; 6701585984; 55644532300; 57195611779; 7004035022; 55821491100 jseo@clarkson.edu; APPLIED SURFACE SCIENCE APPL SURF SCI 0169-4332 1873-5584 698 SCIE CHEMISTRY, PHYSICAL;MATERIALS SCIENCE, COATINGS & FILMS;PHYSICS, APPLIED;PHYSICS, CONDENSED MATTER 2024 6.9 10.9 0 2025-05-07 0 0 Chemical mechanical planarization; Inhibitor; Molybdenum; Density functional theory INHIBITION PERFORMANCE; THEORETICAL EVALUATION Chemical mechanical planarization; Density functional theory; Inhibitor; Molybdenum Carrier concentration; Chemical mechanical polishing; Copper corrosion; Corrosion prevention; Corrosion protection; Corrosion rate; Corrosion resistance; Electrochemical corrosion; Molybdenum oxide; MOS devices; Amino-acids; Chemical-mechanical planarization; Corrosion control; Density-functional-theory; Dielectric layer; Eco-friendly; Electromigration resistance; Inhibitor; Material removal rate; Methionine; Arginine English 2025 2025-07-30 10.1016/j.apsusc.2025.163046 바로가기 바로가기 바로가기 바로가기
Article Nanoscale Young's modulus and resistivity of flexible Au films on PET substrates revealed by atomic force microscopy Flexibility is a critical factor in the design of electronic devices, and gold (Au) is widely used for flexible electrodes due to its excellent conductivity and moderate softness. This study investigates the nanoscale Young's modulus and resistivity of Au films with thicknesses ranging from 5 nm to 100 nm. Atomic force microscopy (AFM) was employed to characterize the mechanical properties and surface morphology of the films. Electrical resistance measurements were conducted under both flat and bent conditions to evaluate changes in conductivity due to mechanical strain. Our results indicate that Au films thinner than 10 nm fail to form a continuous conductive surface, hindering efficient current flow. In contrast, films thicker than 10 nm achieve reliable conductivity. Although conductivity decreases under bending, the films maintain sufficient performance for practical applications. These findings offer valuable insights into optimizing Au film thickness to balance flexibility and conductivity, enhancing the design of flexible electronic devices. Kim, Gwang-Myeong; Ra, Sooyeon; Yang, Chanuk; Lee, Jae-Hyun; Jo, Myunglae; Choi, Hyungkook; An, Sangmin Jeonbuk Natl Univ, Res Inst Mat & Energy Sci, Dept Phys, Jeonju 54896, South Korea; K tip Corp, Jeonju 54896, South Korea; Kyungpook Natl Univ, Dept Phys, Daegu 41566, South Korea; Jeonbuk Natl Univ, Res Inst Phys & Chem, Dept Phys, Jeonju 54896, South Korea; Jeonbuk Natl Univ, Acad Convergence Res, Dept JBNU KIST Ind, Jeonju 54896, South Korea; Jeonbuk Natl Univ, Dept Energy AI Convergence Technol, Jeonju 54896, South Korea 59682094800; 58044126800; 27968174900; 59680830100; 57221248150; 55478370100; 35203088200 myunglae.jo@knu.ac.kr; hkchoi@jbnu.ac.kr; san@jbnu.ac.kr; APPLIED SURFACE SCIENCE APPL SURF SCI 0169-4332 1873-5584 695 SCIE CHEMISTRY, PHYSICAL;MATERIALS SCIENCE, COATINGS & FILMS;PHYSICS, APPLIED;PHYSICS, CONDENSED MATTER 2024 6.9 10.9 0 2025-05-07 0 0 Flexible electronic device; Au coated PET film; Atomic force microscope; Young's modulus; Resistivity Atomic force microscope; Au coated PET film; Flexible electronic device; Resistivity; Young's modulus Computer resource management; Flexible electronics; Atomic force; Atomic force microscope; Atomic-force-microscopy; Au coated PET film; Au film; Flexible electronics device; Nano scale; PET films; Resistivity; Young modulus; Gold coatings English 2025 2025-06-30 10.1016/j.apsusc.2025.162921 바로가기 바로가기 바로가기 바로가기
Article Novel Ce3+/Dy3+co-doped RHA double-function glasses for UV protection and white light emission capability The Ce3+/Dy3+ co-doped UV-protection glass made from rice husk ash (RHA) waste was successfully produced using the conventional melt-quenching technique. The X-ray fluorescence (XRF) was measured to check the chemicals contained in RHA. The structure and optical characteristics of the glass were analyzed using Fouriertransform infrared (FTIR) spectroscopy, transmittance spectra and photoluminescence (PL) spectra. FTIR spectra indicated the influence of the dopants, showing significant vibrations related to OH and SiO4 in the Ce-0Dy glass. However, these vibration strengths decreased when 0.3 mol% of Dy3+ ions (labeled Ce-0.3Dy) was added. In the transmittance spectra, the undoped sample had an absorption edge at 280 nm (in the UVB region). After adding 0.5 mol% of CeF3 to the glass samples, this edge shifted to a longer wavelength of 340 nm (in the UVA region). This indicates that effective UV protection from UVB and UVA has been achieved. Energy transfer (ET) analysis revealed the potential quenching of photoluminescence emission. Energy transfer studies between Ce3+-> Dy3+ ions, using the Forster-Dexter model, demonstrated the possibility of energy transfer from Ce3+ to Dy3+. Calculations based on the IH model confirmed that dipole-dipole interactions dominate in the prepared glasses. The CIE diagram with varying excitation wavelengths was presented from the violet-blue region (lambda Ex = 350 nm) to the cool white area (lambda Ex = 385 nm). Overall, the Ce-0.3Dy glass effectively absorb UVA and emit white light emission with a high color purity of 32 %, making it suitable for new UV - white light conversion glass. Sarumaha, C. S.; Kaewnuam, E.; Lertloypanyachai, P.; Srisittipokakun, N.; Kim, H. J.; Intachai, N.; Kothan, S.; Kaewkhao, J. Muban Chombueng Rajabhat Univ, Fac Sci & Technol, Phys Program, Ratchaburi 70150, Thailand; Nakhon Pathom Rajabhat Univ, Ctr Excellence Glass Technol & Mat Sci CEGM, Nakhon Pathom 73000, Thailand; Nakhon Pathom Rajabhat Univ, Fac Sci & Technol, Phys Program, Nakhon Pathom 73000, Thailand; Kyungpook Natl Univ, Dept Phys, Daegu 41566, South Korea; Chiang Mai Univ, Fac Associated Med Sci, Ctr Radiat Res & Med Imaging, Dept Radiol Technol, Chiang Mai 50200, Thailand Intachai, Nuttawadee/HOH-1735-2023; Kaewnaum, Eakgapon/JWO-6262-2024; SARUMAHA, CHAYANI/ABE-3018-2022 57214718279; 56267295300; 57015346400; 35365411300; 58483690400; 57221909427; 6507017165; 23974520300 eakgapon_9@hotmail.com; jakrapong@webmail.npru.ac.th; JOURNAL OF ALLOYS AND COMPOUNDS J ALLOY COMPD 0925-8388 1873-4669 1020 SCIE CHEMISTRY, PHYSICAL;MATERIALS SCIENCE, MULTIDISCIPLINARY;METALLURGY & METALLURGICAL ENGINEERING 2024 6.3 10.9 0 2025-05-07 1 1 RHA waste; Ce3+/Dy3+co-doped; UV protection; White light emission ENERGY-TRANSFER; SPECTROSCOPIC PROPERTIES; BOROSILICATE GLASSES; OPTICAL-PROPERTIES; EU3+ IONS; DY3+; LUMINESCENCE; CE3+; GENERATION; GD3+ Ce<sup>3+</sup>/Dy<sup>3+</sup> co-doped; RHA waste; UV protection; White light emission Atomic emission spectroscopy; Doping (additives); Dysprosium alloys; Effluent treatment; Fourier transform infrared spectroscopy; Near infrared spectroscopy; Photoluminescence; Photoluminescence spectroscopy; Ce 3+; Ce3+/dy3+ co-doped; Co-doped; Energy-transfer; Melt quenching techniques; Rice husk ash waste; Rice-husk ash; Transmittance spectra; UV-protection; White light emission; Quenching English 2025 2025-03-15 10.1016/j.jallcom.2025.179261 바로가기 바로가기 바로가기 바로가기
Article Prediction of crater formation in a large pulsed electron beam (LPEB) irradiation process using deep learning In a large pulsed electron beam (LPEB) process, it is crucial to optimize processing parameters to minimize crater formation on a metal surface. Traditional approaches have relied on physics-based models of predicting temperature distribution and melting depth. In this study, a novel data-driven deep learning model is presented to predict crater formation in the LPEB process, from an input vector consisting of material properties (non-metallic chemical composition and heat diffusivity) and processing parameters (energy density and the number of electron pulses). The model was a spectral-norm-based conditional residual generative adversarial network (GAN), which ensured a stable translation from the input vector to the LPEB surface image including the craters. LPEB-processed optical microscopic images were provided as ground truths for four different steel alloys (SKD11, SKD61, NAK80, and KP1). Subsequently, for a more accurate quantitative analysis of the craters, an unsupervised deep learning model was proposed coupled with a noise filtering technique. The deep learning model successfully predicted the crater formation with accuracies of 84.5 % for crater size (mean absolute error of 3.70 mu m), 93.8 % for crater number, and 88.9 % for crater distribution. Additionally, an experiment involving 'walking in the condition space' was conducted, revealing a sound level of understanding by the deep learning model. The prediction time was less than a second. Oh, Mingi; Lee, Yonghoon; Kim, Hoheok; Jung, Jaimyun; Oh, Young-Seok; Lee, Ho Won; Kang, Seong-Hoon; Kim, Se-Jong; Kim, Jisoo; Oh, Sehyeok KIMS, 797 Changwon Daero, Chang Won 51508, South Korea; Kyungpook Natl Univ, Sch Adv Sci & Technol Convergence, 2559 Gyeongsang Daero, Sangju 37224, Gyeongsangbuk D, South Korea; Kyungpook Natl Univ, Dept Precis Mech Engn, 2559 Gyeongsang Daero, Sangju 37224, Gyeongsangbuk D, South Korea; Kyungpook Natl Univ, Convergence Res Ctr Mech & Chem Engn, 2559 Gyeongsang Daero, Sangju 37224, Gyeongsangbuk D, South Korea 59195002400; 58773693800; 57210863804; 56191106000; 55434026400; 56529845100; 56456916400; 55718878400; 57192647685; 56714295100 ksj1009@kims.re.kr; js.kim@knu.ac.kr; shoh@kims.re.kr; JOURNAL OF ALLOYS AND COMPOUNDS J ALLOY COMPD 0925-8388 1873-4669 1010 SCIE CHEMISTRY, PHYSICAL;MATERIALS SCIENCE, MULTIDISCIPLINARY;METALLURGY & METALLURGICAL ENGINEERING 2024 6.3 10.9 0 2025-05-07 0 0 Metals and alloys; Mechanical properties; Computer simulations; Large pulsed electron beam (LPEB); Craters; Deep learning CORROSION-RESISTANCE; SURFACE; MODEL; STEELS; METAL; MOLD Computer simulations; Craters; Deep learning; Large pulsed electron beam (LPEB); Mechanical properties; Metals and alloys Electron beam melting; Electron irradiation; Indium compounds; Manganese alloys; Mercury amalgams; Strain hardening; Tin alloys; Crater; Crater formation; Deep learning; Large pulsed electron beam; Learning models; Mechanical; Metals and alloys; Processing parameters; Property; Pulsed electron beams; Lead alloys English 2025 2025-01-05 10.1016/j.jallcom.2024.177929 바로가기 바로가기 바로가기 바로가기
Article Rapid and specific on-site H5Nx avian influenza diagnosis via RPA and PAM-independent CRISPR-Cas12a assay combined with anti-NP antibody-based viral RNA purification Rapid and accurate detection of H5Nx avian influenza viruses is critical for effective surveillance and control measures. Currently, RT-qPCR with spin column RNA extraction is the gold standard for HPAIV surveillance, but its long reaction time and need for specialized equipment limit its effectiveness for rapid response. In this study, we introduce a centrifuge-free, rapid detection method for on-site detection of H5Nx viruses that combines magnetic bead-based ribonucleoprotein (RNP) purification and concentration with a CRISPR-Cas12a system that is independent of the protospacer adjacent motif (PAM) sequence. Our approach employs anti-NP monoclonal antibodies for the targeted isolation of RNA bound to RNPs, facilitating a quick and specific RNA extraction process that negates the need for centrifugation. Additionally, by denaturing the RT-RPA amplicon using 60% DMSO, we activate the trans-ssDNA cleavage activity of the Cas12a protein without the need for a specific PAM (5'-TTTV-3 ') sequence. This strategy increases flexibility in CRISPR RNA design, providing a significant advantage when targeting genes with high variability. We validated the efficacy of our magnetic RNP purification and concentration method in combined with an RT-RPA/PAM-independent Cas12a assay for detecting the H5 gene. The assay achieved a sensitivity threshold of 101 EID50 with fluorescent detection and 102 EID50 using lateral flow strips. It also exhibited high specificity, yielding positive results solely for H5Nx viruses among various influenza A virus subtypes. Furthermore, in clinical samples, the assay demonstrated 80% sensitivity and 100% specificity. These results highlight the advantages of using NP-specific antibodies for RNP purification and CRISPR-Cas12a with viral gene-specific crRNA to achieve exceptional diagnostic specificity. Song, Jin-Ha; Son, Seung-Eun; Kim, Ho-Won; Kim, Seung-Ji; An, Se-Hee; Lee, Chung-Young; Kwon, Hyuk-Joon; Choi, Kang-Seuk Seoul Natl Univ, Coll Vet Med, Lab Avian Dis, Seoul, South Korea; Seoul Natl Univ, BK21 PLUS Vet Sci, Seoul, South Korea; Anim & Plant Quarantine Agcy, Avian Influenza Res & Diagnost Div, Gimcheon Si, South Korea; Kyungpook Natl Univ, Coll Med, Dept Microbiol, Daegu, South Korea; Seoul Natl Univ, Res Inst Vet Sci, Coll Vet Med, Seoul, South Korea; Seoul Natl Univ, Coll Vet Med, Dept Farm Anim Med, Lab Poultry Med, Seoul, South Korea; Seoul Natl Univ, Farm Anim Clin Training & Res Ctr FACTRC, GBST, Pyeongchang, South Korea; GeNiner Inc, Seoul, South Korea 57221101773; 57221094613; 58516482000; 58516580700; 57195539685; 57195422071; 57196596247; 35798047900 kwonhj01@snu.ac.kr; kschoi@snu.ac.kr; FRONTIERS IN VETERINARY SCIENCE FRONT VET SCI 2297-1769 12 SCIE VETERINARY SCIENCES 2024 2.9 10.9 0 2025-05-07 0 0 avian influenza virus; magnetic beads; ribonucleoprotein purification; CRISPR-Cas12a; PAM-independent; on-site detection WILD BIRDS; AMPLIFICATION; PATHOGENICITY; VIRUSES avian influenza virus; CRISPR-Cas12a; magnetic beads; on-site detection; PAM-independent; ribonucleoprotein purification CRISPR associated endonuclease Cas12; CRISPR associated protein; CRISPR RNA; dimethyl sulfoxide; monoclonal antibody; nucleoprotein monoclonal antibody; ribonucleoprotein; single stranded DNA; unclassified drug; virus DNA; virus RNA; amplicon; Article; avian influenza; avian influenza virus; centrifugation; concentration (parameter); controlled study; CRISPR Cas system; denaturation; DNA cleavage; DNA sequence; enzyme activity; fetus; gene identification; gene targeting; immunomagnetic separation; nonhuman; protein purification; protospacer adjacent motif; reverse transcription recombinase polymerase amplification; RNA extraction; RNA isolation; RNA purification; sensitivity and specificity; statistically significant result; virus detection; virus gene English 2025 2025-01-17 10.3389/fvets.2025.1520349 바로가기 바로가기 바로가기 바로가기
Article Real hypersurfaces with (δ, ϵ)-Ricci-Bourguignon soliton and its gradient in the complex quadric By using the notion of generalized pseudo-anti commuting Ricci tensor defined by Ric phi + phi Ric = f phi for real hypersurfaces in the complex quadric Q(m )= SOm+2/SO2SOm, we give a complete classification of Hopf (delta, & varepsilon;)-Ricci-Bourguignon soliton real hypersurfaces in the complex quadric Q(m). Next, as an application, we show a complete classification of gradient (delta, & varepsilon;)-Ricci-Bourguignon soliton on Hopf real hypersurfaces in the complex quadric Q(m) with isometric Reeb flow or contact hypersurfaces. Suh, Young Jin Kyungpook Natl Univ, Dept Math & RIRCM, Daegu 41566, South Korea 59713214000 yjsuh@knu.ac.kr; REVISTA DE LA REAL ACADEMIA DE CIENCIAS EXACTAS FISICAS Y NATURALES SERIE A-MATEMATICAS RACSAM REV R ACAD A 1578-7303 1579-1505 119 3 SCIE MATHEMATICS 2024 1.6 10.9 0 2025-06-11 0 0 (delta, & varepsilon;)-Ricci-Bourguignon soliton; Gradient (delta, & varepsilon;)-Ricci-Bourguignon soliton; Generalized pseudo-anti commuting property; A-isotropic; A-principal; Real structure EINSTEIN HYPERSURFACES; YAMABE; CONVERGENCE; GEOMETRY; SPACE (δ,ϵ)-Ricci-Bourguignon soliton; A-isotropic; A-principal; Generalized pseudo-anti commuting property; Gradient (δ,ϵ)-Ricci-Bourguignon soliton; Real structure Geometry; Tensors; (δ,ϵ)-ricci-bourguignon soliton; A-isotropic; A-principal; Complete classification; Generalized pseudo-anti commuting property; Gradient (δ,ϵ)-ricci-bourguignon soliton; Hyper-surfaces; Isotropics; Property; Real structure; Solitons English 2025 2025-07 10.1007/s13398-025-01740-1 바로가기 바로가기 바로가기 바로가기
Article Revealing the roles of oxygen vacancies in NiO-CeO2 redox catalysts for electrocatalytic ozonation: Mechanistic study via in situ Raman spectroscopy Improving the O-3 activation via electrocatalysis is a promising approach to achieve higher hydroxyl radical (OH) production, however, the mechanisms and performance of electrocatalytic ozonation (ECO) remains unclear. Herein, we investigated the redox enhancement effect via preparing the asymmetric oxygen vacancies (O-V) contained NiO-CeO2 and doped on carbon felt electrode to enhance anodic O-3 activation for atrazine (ATZ) demineralization. XPS and ESR liquid analysis results revealed that O-V content in NiO-CeO2 electrode are crucial sites for O-3 decomposition and facilitating the OH generation. In situ Raman spectroscopy finding evidenced the intermetallic redox behaviour between NiO and CeO2 in ECO. As a result, ECO using NiO-CeO2 exhibited 3.4-times higher ATZ demineralization rate and 84.4% lower energy consumption (149 kWh/mg) than sole ozonation (960 kWh/mg). In addition, NiO-CeO2 electrode in ECO also showed excellent demineralization performance toward SMX and BPA. Meanwhile, the leaching of Ce(III) and Ni(II) from NiO-CeO2 were not detected in ECO. The toxicities of ATZ degradation by-products were reduced, as proved by QSAR predictions and seed germination. Notably, NiO-CeO2 electrode exhibited excellent reusability performance in consecutive seven cycles ECO tests and outstanding stability in continuous-stirred-tank-reactor experiments, with 84% ATZ demineralization for up to 10 hr. This study provides mechanistic insights into the roles of O-V in redox enhancement to improve OH generation for water treatment. Abd Rahman, Nurhaslina; Wong, Kien Tiek; Choong, Choe Earn; Nah, In Wook; Park, Chang Min; Kim, Jung Rae; Oh, Sang-Eun; Yoon, Yeomin; Choi, Eun Ha; Jang, Min Kwangwoon Univ, Dept Environm Engn, Seoul 01897, South Korea; Kwangwoon Univ, Plasma Biosci Res Ctr, Seoul 01897, South Korea; Korea Inst Sci & Technol, Ctr Energy Convergence, Hwarangno 14 Gil 5, Seoul 02792, South Korea; Kyungpook Natl Univ, Dept Environm Engn, 80 Daehak Ro, Daegu 41566, South Korea; Pusan Natl Univ, Sch Chem Engn, Busan 46241, South Korea; Kangwon Natl Univ, Dept Biol Environm, 192 1 Hyoja Dong, Chunchon 200701, Gangwon Do, South Korea; Ewha Womans Univ, Dept Environm Sci & Engn, 52 Ewhayeodae Gil, Seoul 03760, South Korea Yoon, Yeomin/KDP-2253-2024; Jang, Min/J-2230-2012; Choong, Choe Earn/J-3005-2016; Kim, Jung/B-6008-2011; Jang, Min/M-6690-2018; Park, Chang Min/CAA-8506-2022 57199500186; 57054538300; 57200944393; 6505864566; 57209588953; 8545413900; 7404103316; 7402126688; 58570230700; 36762550700 cce_@live.com; minjang@kw.ac.kr; APPLIED SURFACE SCIENCE APPL SURF SCI 0169-4332 1873-5584 679 SCIE CHEMISTRY, PHYSICAL;MATERIALS SCIENCE, COATINGS & FILMS;PHYSICS, APPLIED;PHYSICS, CONDENSED MATTER 2024 6.9 10.9 6.79 2025-05-07 2 4 Electrocatalytic ozonation; Oxygen vacancies; Redox reaction; In situ Raman spectroscopy; O-3 activation GRAPHENE Electrocatalytic ozonation; In situ Raman spectroscopy; O<sub>3</sub> activation; Oxygen vacancies; Redox reaction Bioremediation; Cerium oxide; Chemicals removal (water treatment); Effluent treatment; Emission control; Ozone water treatment; Redox reactions; Reusability; CeO 2; Demineralisation; Electrocatalytic; Electrocatalytic ozonation; Hydroxyl radicals; In-situ Raman spectroscopy; Mechanistic studies; O3 activation; Performance; Redox catalysts; Ozonization English 2025 2025-01-15 10.1016/j.apsusc.2024.161174 바로가기 바로가기 바로가기 바로가기
Article Selective trace bromide ion removal from chloride ion-dominated solutions using defective Zr-based metal-organic frameworks The removal of bromide ions (Br- ) from water is critical, as these ions can generate bromate and brominated disinfection by-products that are toxic, carcinogenic, and corrosive. Previous research has not focused on the removal of Br- from water with a heavy presence of chloride ions (Cl- ). To address this research gap, we proposed a defective Zr-based metal-organic framework (MOF) to selectively remove trace Br- in environments with high concentrations of Cl-. We demonstrated that the open acidic sites on the secondary building units in a defective Zr-based MOF-808 (MOF-808-Cl) selectively removed the trace Br- in the presence of high concentration of Cl- using varying degrees of electrostatic interactions induced by their own polarizability. The Brremoval was performed with the mixed mechanism of ion-exchange and -adsorption, with contributions of approximately 70% and 30%, respectively. The Br- was successfully removed when the concentration of Cl- was 100 times higher than that of Br- . Our findings demonstrate the potential of MOF-808-Cl for industrial applications requiring trace ion removal and can provide insights for future research on selective ion removal in a competitive environment. Moon, Wooyeon; Park, Dong Gyu; Son, Younghu; Yoon, Minyoung; Choi, Kyung Min Sookmyung Womens Univ, Dept Chem & Biol Engn, 100 Cheongpa Ro 47 Gil, Seoul 04310, South Korea; Sookmyung Womens Univ, Inst Adv Mat & Syst, Seoul 04310, South Korea; Kyungpook Natl Univ, KNU Inst Basic Sci, KNU G LAMP Res Ctr, Daegu 41566, South Korea; Kyungpook Natl Univ, Dept Chem, 80 Daehakro, Daegu 41566, South Korea ; Son, Younghu/AAX-9531-2021 58086732900; 57204859889; 57216839175; 25222186500; 55659485400 myyoon@knu.ac.kr; kmchoi@sookmyung.ac.kr; APPLIED SURFACE SCIENCE APPL SURF SCI 0169-4332 1873-5584 688 SCIE CHEMISTRY, PHYSICAL;MATERIALS SCIENCE, COATINGS & FILMS;PHYSICS, APPLIED;PHYSICS, CONDENSED MATTER 2024 6.9 10.9 0 2025-05-07 0 0 Bromide ion removal; Defect site; Metal-organic framework; Ion-exchange; Ion-adsorption; Chloride ion; Trace pollutant DRINKING-WATER; ADSORPTION; MOF-808; ANIONS Bromide ion removal; Chloride ion; Defect site; Ion-adsorption; Ion-exchange; Metal–organic framework; Trace pollutant Disinfection; Pollution induced corrosion; Zirconium; Zirconium powder metallurgy; Bromide ion removal; Bromide ions; Chloride ions; Defect sites; Disinfection by-product; Disinfection byproducts; Ion adsorption; Ion removal; Metalorganic frameworks (MOFs); Trace pollutant; Ion exchange English 2025 2025-04-15 10.1016/j.apsusc.2025.162309 바로가기 바로가기 바로가기 바로가기
Article Synergistic performance of Z-scheme based g-CN/Zn0.5Cd0.5S/GO nanocomposite towards sustainable model organic pollutants detoxification: Mechanistic insights and practical implications Effective removal of organic pollutants in aqueous suspensions remains a critical challenge due to the complexity and stability of contaminants, which demand advanced materials for efficient photocatalytic detoxification. In this study, a Z-scheme heterojunction material was fabricated using a one-pot thermal impregnation technique, aiming to address these challenges. The unique combination of graphitic carbon nitride (g-CN), zinc cadmium sulfide (ZnCdS), and graphene oxide (GO) imparts synergistically robust performance for the removal of organic pollutants under various real-world water conditions. Interestingly, among the synthesized materials, the g-CN/ Zn0.5Cd0.5S/GO (2:1) ternary nanocomposite presented well-improved detoxification proficiencies in mineralized water compared to those of pure and binary materials. Importantly, significant detoxification performances of approximately 99.9 % for ciprofloxacin, 99.8 % for methyl orange, and 92 % for 4-nitrophenol were observed within 60-150 min of irradiation. Additionally, a comparative analysis was conducted on the degradation of ciprofloxacin, methyl orange, and 4-nitrophenol with the most recent work, which emphasized that g-CN/ Zn0.5Cd0.5S/GO (2:1) nanocomposite has the superior ability to remove the pollutants under optimized parameters. Furthermore, the material showed impressive mineralization rates of 72 %, 68 %, and 78 % for the respective pollutants, signifying the excellent mineralization degree. GC-MS analysis confirmed the degradation and transformation of ciprofloxacin over time, revealing potential pathways for its photocatalytic decontamination. Lastly, no changes in the prominent peaks of FTIR spectra and morphological structures after multiple experimental cycles, suggesting the significant stability of nanocomposite material. Consequently, these outstanding performances of g-CN/Zn0.5Cd0.5S/GO (2:1) nanocomposite feature the remarkable potential for catalytic water purification technologies. Lee, Dong-Eun; Khan, Azam; Husain, Ahmad; Anwar, Kaseed; Lee, Hyun-Cheol; Shin, Seung-Ho; Lee, Joon-Yeob; Danish, Mohtaram; Jo, Wan-Kuen Kyungpook Natl Univ, Sch Architecture Civil Environm & Energy Engn, 80 Daehak Ro, Daegu 41566, South Korea; Jai Prakash Univ, Zakia Afaque Islamia Coll, Dept Chem, Chapra, Bihar, India; Univ Tenaga Nas, Inst Power Engn, Kajang 43000, Selangor, Malaysia; Aligarh Muslim Univ, Interdisciplinary Nanotechnol Ctr, Aligarh 202002, India Husain, Ahmad/ACG-5055-2022; Jo, Wan/AAO-5329-2020 59510700000; 56978457300; 57215031715; 57218919036; 59695469900; 36342915300; 59815670800; 59534603800; 7103322277 dmohtaram@gmail.com; wkjo@knu.ac.kr; JOURNAL OF ALLOYS AND COMPOUNDS J ALLOY COMPD 0925-8388 1873-4669 1022 SCIE CHEMISTRY, PHYSICAL;MATERIALS SCIENCE, MULTIDISCIPLINARY;METALLURGY & METALLURGICAL ENGINEERING 2024 6.3 10.9 0 2025-05-07 3 3 Organic pollutants; Photocatalytic detoxification; Real-world water; Z -scheme heterojunction; Mechanistic understanding GRAPHENE OXIDE; PHOTOCATALYTIC ACTIVITY; HETEROJUNCTION; DEGRADATION Mechanistic understanding; Organic pollutants; Photocatalytic detoxification; Real-world water; Z-scheme heterojunction Cells; Graphitic Carbon Nitride; Layered semiconductors; Wide band gap semiconductors; Graphene oxides; Graphitic carbon nitrides; Mechanistic understanding; Mechanistics; Organics; Photo-catalytic; Photocatalytic detoxification; Real-world; Real-world water; Z-scheme heterojunction; Detoxification English 2025 2025-04-10 10.1016/j.jallcom.2025.179820 바로가기 바로가기 바로가기 바로가기
Article Unveiling the bending deformation behaviors of Mg alloys with tilted textures through a biaxial tension analysis approach This study investigates the three-point bending behavior of rolled AZ31 magnesium alloy specimens with different initial texture orientations by analyzing the activation of deformation mechanisms through Schmid factor (SF) calculations under both uniaxial and biaxial stress states. Three specimen types-BD90, WD90, and LD90-were machined from the same rolled plate such that the basal texture was oriented perpendicular to the bending direction (BD), width direction (WD), and longitudinal direction (LD), respectively. Despite having identical initial microstructures, the failure bending strains varied: WD90 exhibited the highest strain (16.2%), followed by BD90 (12.3%) and LD90 (12.4%). Electron backscatter diffraction revealed that {10-12} twinning was most pronounced in BD90, moderate in WD90, and limited in LD90. However, SFs calculated under uniaxial tension did not correspond with the experimentally observed twinning trends. In contrast, SFs derived under biaxial tension accurately reflected both the twinning and basal slip behavior, as well as the overall bending performance. These findings demonstrate that SF analysis under biaxial stress provides a more reliable framework for understanding and predicting the deformation behavior of textured magnesium alloys during bending. Lee, Gyo Myeong; Kim, Hyun Ji; Lee, Jong Un; An, Gun Woong; Park, Sung Hyuk HD Hyundai Heavy Ind, Ulsan 44032, South Korea; Agcy Def Dev, Missile Res Inst, Daejeon 34060, South Korea; Korea Inst Mat Sci, Extreme Mat Res Inst, Chang Won 51508, South Korea; Kyungpook Natl Univ, Dept Mat Sci & Met Engn, Daegu 41566, South Korea; Kyungpook Natl Univ, Grad Sch Mat Sci & Engn, Daegu 41566, South Korea 57222810183; 59866513600; 57195056728; 59298471300; 54786002500 sh.park@knu.ac.kr; JOURNAL OF ALLOYS AND COMPOUNDS J ALLOY COMPD 0925-8388 1873-4669 1035 SCIE CHEMISTRY, PHYSICAL;MATERIALS SCIENCE, MULTIDISCIPLINARY;METALLURGY & METALLURGICAL ENGINEERING 2024 6.3 10.9 N/A 0 0 AZ31 alloy; Texture; Bending; Schmid factor; Biaxial tension ROLLED MAGNESIUM ALLOY; MECHANICAL-PROPERTIES; VARIANT SELECTION; ROOM-TEMPERATURE; MG-3AL-1ZN ALLOY; SCHMID FACTOR; MICROSTRUCTURE; SHEETS; SLIP; PRECOMPRESSION AZ31 alloy; Bending; Biaxial tension; Schmid factor; Texture Analysis approach; AZ31 alloy; Bending; Bending behaviour; Biaxial tensions; Deformation behavior; Mg alloy; Schmid factors; Tension analysis; Three-points bending; Bending (forming) English 2025 2025-07-05 10.1016/j.jallcom.2025.181374 바로가기 바로가기 바로가기 바로가기
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