2025 연구성과 (47 / 151)
※ 컨트롤 + 클릭으로 열별 다중 정렬 가능합니다.
Excel 다운로드
| 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 | Weak solutions to a hyperbolic-elliptic problem | We prove the existence of infinitely many local-in-time weak solutions to the initial-boundary value problem for a class of hyperbolic-elliptic equations in dimension n >= 2 when the range of the magnitude of the initial spatial gradient overlaps with the unstable elliptic regime. Such solutions are extracted from the method of convex integration in a Baire category setup; they are smooth outside the phase mixing zone that is determined by a modified hyperbolic evolution, continuous on the space-time domain, and Lipschitz continuous in terms of the spatial variables. (c) 2024 Elsevier Inc. All rights are reserved, including those for text and data mining, AI training, and similar technologies. | Kim, Seonghak | Kyungpook Natl Univ, Coll Nat Sci, Dept Math, Daegu 41566, South Korea | 56489490600 | shkim17@knu.ac.kr; | JOURNAL OF FUNCTIONAL ANALYSIS | J FUNCT ANAL | 0022-1236 | 1096-0783 | 288 | 5 | SCIE | MATHEMATICS | 2024 | 1.6 | 10.9 | 0 | 2025-05-07 | 0 | 0 | Hyperbolic-elliptic equations; Phase mixtures; Convex integration; Baire's category method | Baire's category method; Convex integration; Hyperbolic-elliptic equations; Phase mixtures | English | 2025 | 2025-03-01 | 10.1016/j.jfa.2024.110798 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||||
| ○ | ○ | Article | Suppression of the Segré-Silberberg effect by polymer additives | Particle-laden flow through conduits is ubiquitous in both natural and industrial systems. In such flows, particles often migrate across the main fluid stream, resulting in non-uniform spatial distribution owing to particle-fluid and particle-particle interactions. The most relevant lateral particle migration mechanism by particle-fluid interaction is the Segr & eacute;-Silberberg effect, which is induced by the inertial forces exerted on a particle, as the flow rate increases. However, methods to suppress it have not been suggested yet. Here, we demonstrate that adding a small amount of polymer to the particle-suspending solvent effectively suppresses the Segr & eacute;-Silberberg effect in a square channel. To accurately determine the position of the particles within the channel cross-sections, we devised a dual-view imaging system applicable to microfluidic systems. Our analyses show that the Segr & eacute;-Silberberg effect is effectively suppressed in a square microchannel due to the balance between the inertial and elastic forces at an optimal polymer concentration while maintaining nearly constant shear viscosity. | Jin, Daekwon; Park, Jee In; You, Jae Bem; Kim, Younghun; Lee, Hyomin; Kim, Ju Min | Ajou Univ, Dept Energy Syst Res, Suwon 16499, South Korea; Kyungpook Natl Univ, Dept Chem Engn, Daegu 41566, South Korea; Chungnam Natl Univ, Dept Chem Engn & Appl Chem, Daejeon 34134, South Korea; Kwangwoon Univ, Dept Chem Engn, Seoul 01897, South Korea; Jeju Natl Univ, Dept Chem & Biol Engn, Jeju 63243, South Korea; Ajou Univ, Dept Chem Engn, Suwon 16499, South Korea | You, Jae Bem/C-6211-2019 | 57989683000; 59310853000; 55619455300; 57219190380; 56457054800; 8699066600 | jumin@ajou.ac.kr; | JOURNAL OF FLUID MECHANICS | J FLUID MECH | 0022-1120 | 1469-7645 | 1004 | SCIE | MECHANICS;PHYSICS, FLUIDS & PLASMAS | 2024 | 3.9 | 11.0 | 0 | 2025-05-07 | 0 | 0 | viscoelasticity; particle/fluid flow; microfluidics | PARTICLE MIGRATION; VISCOELASTIC FLOW; SUSPENDING LIQUID; RELAXATION-TIMES; RIGID SPHERES; PIPE-FLOW; DYNAMICS; NUMBER; DILUTE; TUBE | microfluidics; particle/fluid flow; viscoelasticity | Elastomers; Fluidic logic devices; Shear flow; Flowthrough; Fluid streams; Industrial systems; Inertial forces; Natural systems; Non-uniform; Particle laden flows; Particle-fluid flow; Polymer additive; Segre-Silberberg effect; additive; flow velocity; fluid flow; polymer; viscoelasticity; Shear viscosity | English | 2025 | 2025-01-28 | 10.1017/jfm.2024.1234 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | Article | Systematic identification of genomic hotspots for high-yield protein production in CHO cells | The efficient and stable production of therapeutic proteins in Chinese hamster ovary (CHO) cells hinges on robust cell line development (CLD). Traditional methods relying on random transgene integration often result in clonal variability, requiring extensive and resource-intensive screening. To address this limitation, we established a systematic, multiomics-driven framework that integrates 202 RNA-sequencing datasets and whole-genome sequencing data to identify genomic "hotspot" loci for precise and high-yield transgene integration. From an initial pool of 20 candidate loci, 5 top-performing hotspots were validated using site-specific integration in CHODG44 cells via the CRISPR/Cas9 system with Recombinase-mediated cassette exchange (RMCE). These genomic hotspots achieved 2.2-to 15.0-fold higher relative specific productivity compared to previously known controls (Fer1L4 and Locus1 sites), across multiple therapeutic proteins, including a lysosomal storage disorder-related enzyme and an Immunoglobulin G (IgG)-related monoclonal antibody (mAb) expression. This study offers a transformative approach to CLD, achieving significant improvements in productivity, genomic stability, and efficiency, as well as paving the way for enhanced biopharmaceutical manufacturing. | Lee, Minouk; Han, Sung-Hyuk; Kim, Dongseok; Yun, Seongtae; Yeom, Jinho; Kyeong, Minji; Park, Seo-Young; Lee, Dong-Yup | Sungkyunkwan Univ, Sch Chem Engn, 2066 Seobu Ro, Suwon 16419, Gyeonggi Do, South Korea; GC Biopharm, Cell Based Proc Engn, R&D, 93 Ihyun Ro,30 Beon Gil, Yongin 16924, Gyeonggi Do, South Korea; Kyungpook Natl Univ, Sch Med, Dept Biomed Sci, Daegu 41944, South Korea | seoyoungpark@knu.ac.kr; Dongyuplee@skku.edu; | NEW BIOTECHNOLOGY | NEW BIOTECHNOL | 1871-6784 | 1876-4347 | 88 | SCIE | BIOCHEMICAL RESEARCH METHODS;BIOTECHNOLOGY & APPLIED MICROBIOLOGY | 2024 | 4.9 | 11.0 | 0 | CHO cell line development; Transcriptome; CRISPR/Cas9; Recombinase-mediated cassette exchange; Site-specific integration; Hotpots | EXCHANGE RMCE; LINE; GENERATION; THERAPEUTICS; OPTIMIZATION; EXPRESSION; STABILITY | English | 2025 | 2025-09-25 | 10.1016/j.nbt.2025.04.006 | 바로가기 | 바로가기 | 바로가기 | |||||||||||
| ○ | ○ | Article | AIRS-Assisted Vehicular Networks With Rate-Splitting SWIPT Receivers: Joint Trajectory and Communication Design | In this correspondence, we propose to use an intelligent reflective surface (IRS) installed on autonomous aerial vehicle (AAV), referred to as aerial IRS (AIRS), for vehicular networks, where simultaneous wireless information and power transfer (SWIPT) receivers to concurrently allow information decoding (ID) and energy harvesting (EH) are equipped at the battery-limited vehicles. For efficiently supporting the multiple moving vehicles, we adopt rate-splitting multiple access (RSMA) technique. With the aim of maximizing the sum rate of vehicles, we jointly optimize trajectory and phase shift design of AIRS, transmit power and rate allocation for RSMA along with power splitting ratio for SWIPT implementation. Via simulations, the superior performances of the proposed algorithm are validated compared to the conventional partial optimizations. | Nam, Gyoungyoon; Lee, Seokhyun; Jeong, Seongah | Kyungpook Natl Univ, Sch Elect Engn, Daegu 14566, South Korea; Univ Seoul, Sch Adv Fus Studies, Seoul 02504, South Korea | 58858148000; 58859126200; 55210226900 | ngy3827yes@knu.ac.kr; kei04060@knu.ac.kr; seongah@uos.ac.kr; | IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY | IEEE T VEH TECHNOL | 0018-9545 | 1939-9359 | 74 | 2 | SCIE | ENGINEERING, ELECTRICAL & ELECTRONIC;TELECOMMUNICATIONS;TRANSPORTATION SCIENCE & TECHNOLOGY | 2024 | 7.1 | 11.1 | 0 | 2025-05-07 | 1 | 1 | Intelligent reflecting surface (IRS); rate-splitting multiple access (RSMA); simultaneous wireless information and power transfer (SWIPT); simultaneous wireless information and power transfer (SWIPT); autonomous aerial vehicle (AAV); autonomous aerial vehicle (AAV); vehicular networks; vehicular networks; vehicular networks | ALLOCATION | autonomous aerial vehicle (AAV); Intelligent reflecting surface (IRS); rate-splitting multiple access (RSMA); simultaneous wireless information and power transfer (SWIPT); vehicular networks | Aircraft communication; Energy transfer; Inductive power transmission; Integrated circuit design; Smart antennas; Structural analysis; Structural dynamics; Unmanned surface vehicles; Aerial vehicle; Information and power transfers; Intelligent reflecting surface; Multiple access; Rate splitting; Rate-splitting multiple access; Reflecting surface; Simultaneous wireless information and power transfer; Unmanned aerial vehicle; Vehicular networks; Unmanned aerial vehicles (UAV) | English | 2025 | 2025-02 | 10.1109/tvt.2024.3482412 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | Article | DeCo-MeSC: Deep Compression-Based Memory-Constrained Split Computing Framework for Cooperative Inference of Neural Network | Split computing (SC) of a deep neural network (DNN) across end nodes is a key enabling technology to realize energy-efficient and low-latency cooperative inference in wireless networks and Internet-of-Things (IoT). In this paper, we propose a novel SC framework based on the concept of deep compression (DC) of DNN considering the strictly limited memory footprint of a mobile device, namely, DeCo-MeSC. In our proposed DeCo-MeSC framework, an initial part of a target DNN (up to so-called the split layer) for the mobile device is compressed with the DC technique to satisfy the memory constraint, while the remaining part of the target DNN (after the split layer) for a cloud server is uncompressed, yet fine-tuned to compensate for the performance loss due to the compression of the initial part. Furthermore, the jointly optimal pair of the split layer and data rate is determined efficiently to maximize the end-to-end inference accuracy under both the end-to-end inference latency and memory constraints. Extensive experimental results demonstrate that the proposed scheme performs markedly better than the existing schemes. © 1967-2012 IEEE. | Sung, Mingyu; Palakonda, Vikas; Kim, Il-Min; Yun, Sangseok; Kang, Jae-Mo | Kyungpook National University, Department of Artificial Intelligence, Daegu, 41566, South Korea; Kyungpook National University, Department of Artificial Intelligence, Daegu, 41566, South Korea; Queen's University, Department of Electrical and Computer Engineering, Kingston, K7L 3N6, ON, Canada; Pukyong National University, Department of Information and Communications Engineering, Busan, 48513, South Korea; Kyungpook National University, Department of Artificial Intelligence, Daegu, 41566, South Korea | 57221328242; 57193028485; 36040390300; 56115729600; 56024930400 | ssyun@pknu.ac.kr; | IEEE Transactions on Vehicular Technology | IEEE T VEH TECHNOL | 0018-9545 | 1939-9359 | SCIE | ENGINEERING, ELECTRICAL & ELECTRONIC;TELECOMMUNICATIONS;TRANSPORTATION SCIENCE & TECHNOLOGY | 2024 | 7.1 | 11.1 | 0 | 2025-05-07 | 0 | Cooperative inference; deep compression; deep neural network (DNN); memory constraint; split computing | Computing frameworks; Cooperative inference; Deep compression; Deep neural network; Enabling technologies; End to end; Energy efficient; Memory constraints; Neural-networks; Split computing; Deep neural networks | English | Article in press | 2025 | 10.1109/tvt.2025.3556459 | 바로가기 | 바로가기 | 바로가기 | |||||||||
| ○ | ○ | Article | Distant Oxide Surfaces Dominating Catalytic Reaction Kinetics: The Case of Pt/CeO2 | One of the main goals of catalysis research is to improve the reaction efficiency by using platinum-group metals (PGMs) more effectively, given their high cost. PGMs are typically dispersed on oxide supports to maximize their surface area, under the assumption that catalytic activity arises primarily from the PGMs and their immediate oxide surroundings, while oxide surfaces located further away from PGMs are often considered catalytically irrelevant. However, a growing body of research on spillover phenomena suggests that PGMs can influence the catalytic properties of oxide surface sites located several nanometers away from PGMs, prompting the question of whether distant oxide surfaces can play a more active, or even dominant, role in catalytic kinetics. A shift in understanding, from viewing the oxide surface as merely a passive support to recognizing it as an active promoter of the rate-limiting step (RLS), would offer an alternative framework for optimizing PGM utilization. In this contribution, we investigated the role of distant oxide surfaces in CO oxidation, using Pt/CeO2 as a model system. Our findings show that distant CeO2 surfaces are not inert but can promote the CO oxidation reaction via oxygen spillover. Interestingly, when the CeO2 content in Pt/CeO2 is high, the catalytic activity across catalysts with varying distributions of Pt single atoms and clusters is identical. Kinetic analysis reveals that, in CeO2-rich Pt/CeO2 catalysts, the RLS is the activation of oxygen on the distant CeO2 surface. Further investigation indicated that the alignment of CeO2 grains during reductive treatment facilitates the oxygen supply to Pt, boosting catalytic activity. This study suggests that leveraging the catalytic function of the distant oxide surface offers a promising strategy to enhance the efficiency of PGMs, providing an alternative perspective on catalyst development. | Lee, Eunwon; Kang, Sungsu; Beck, Arik; Park, Jungwon; Lee, Jaeha; Kim, Do Heui | Seoul Natl Univ, Inst Chem Proc, Sch Chem & Biol Engn, Seoul 08826, South Korea; Karlsruhe Inst Technol, Inst Chem Technol & Polymer Chem, Engesserstr 20, D-76131 Karlsruhe, Germany; Seoul Natl Univ, Inst Basic Sci IBS, Ctr Nanoparticle Res, Seoul 08826, South Korea; Kyungpook Natl Univ, Sch Chem Engn & Appl Chem, Daegu 41566, South Korea | 57214728853; 57218623519; 57217237412; 55152439000; 58852907000; 8905508400 | jaeha0913@knu.ac.kr; dohkim@snu.ac.kr; | ACS CATALYSIS | ACS CATAL | 2155-5435 | 15 | 11 | SCIE | CHEMISTRY, PHYSICAL | 2024 | 13.1 | 11.1 | 0 | 2025-06-11 | 0 | 0 | Pt; CeO2; distant oxide surfaces; CO oxidation; O-spillover; rate-limiting step | SITU HT-ESEM; CO OXIDATION; HYDROGEN SPILLOVER; METAL EFFICIENCY; CERIA CATALYSTS; REMOTE-CONTROL; OXYGEN; CEO2; ATOMS; SPECTROSCOPY | CeO<sub>2</sub>; CO oxidation; distant oxide surfaces; O-spillover; Pt; rate-limiting step | Crystallization kinetics; Nanocatalysts; Catalytic reactions; CeO 2; CO oxidation; Distant oxide surface; O-spillover; Oxide surface; Platinum group metals; Pt; Rate-limiting steps; ]+ catalyst; Rate constants | English | 2025 | 2025-05-20 | 10.1021/acscatal.5c01564 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | Review | Electrically conductive nanomaterial-enhanced membranes for wastewater reclamation: mechanisms and performance insights | The incorporation of nanomaterials with electrical conductivity into membrane technology is leading to the development of numerous novel strategies towards wastewater reclamation. The probable utility and mechanisms of membrane functionalized with conductive nanomaterials are examined in this critical review. Carbon nanotubes, graphene, and metal oxides are some of the prime examples of conductive nanomaterials that are typically added to improve the permeability, selectivity, and antifouling capabilities of membranes along with imbuing novel functionalities like electrochemical and photocatalytic activities. Functionalization and manufacturing methods, including in situ polymerization, chemical grafting, and physical blending, are covered in this review. The recent literature indicates several noteworthy advancements in this area, such as eliminating microbiological infections, heavy metal ions, organic contaminants, and developing pollutants. The review also discusses economic and environmental factors, highlighting the affordability of these sophisticated membranes and the sustainability of nanomaterial production. © 2025 The Royal Society of Chemistry. | Deka, Priyamjeet; Saikia, Bipasha; Roy, Sonali; Raidongia, Kalyan; Subbiah, Senthilmurugan | Department of Environmental Engineering, Kyungpook National University, Daegu, 41566, South Korea; Department of Chemistry, Indian Institute of Technology, Assam, Guwahati, 781039, India; Department of Chemistry, Indian Institute of Technology, Assam, Guwahati, 781039, India; Department of Chemistry, Indian Institute of Technology, Assam, Guwahati, 781039, India; Department of Chemical Engineering, Indian Institute of Technology, Assam, Guwahati, 781039, India | 57221998400; 58945375700; 58314197300; 23089147300; 57193645852 | k.raidongia@iitg.ac.in; senthilmurugan@iitg.ac.in; | Materials Horizons | MATER HORIZ | 2051-6347 | 2051-6355 | SCIE | CHEMISTRY, MULTIDISCIPLINARY;MATERIALS SCIENCE, MULTIDISCIPLINARY | 2024 | 10.7 | 11.1 | N/A | 0 | English | Article in press | 2025 | 10.1039/d5mh00601e | 바로가기 | 바로가기 | 바로가기 | ||||||||||||
| ○ | ○ | Article | Long-term treatment outcomes of popliteal artery entrapment syndrome by the Korean Rare Vascular Ailment Research Experts | Objective: Popliteal artery entrapment syndrome (PAES) results from an anomalous relationship between the popliteal artery and the myofascial structures of the popliteal fossa. The long-term treatment outcomes are not well-known because of the rarity of the disease. This study aimed to establish a nationwide collective dataset and analyze treatment outcomes. Materials and Methods: The Korean Rare Vascular Ailment Research Experts performed nationwide retrospective data collection on PAES from 2003 to 2023. Fourteen tertiary medical centers participated, and data from 111 limbs of 96 patients who received invasive treatment with sufficient baseline and follow-up data were used for statistical analysis. Results: The median age was 37.5 years (range, 14-82 years), and 92.8% were male. Eighty-one percent of the patients presented with claudication, and 13.5% with rest pain. The popliteal arteries were stenotic in 24.3% and occluded in 75.6%. A total of 109 open surgeries and two endovascular treatments were performed. The primary patency rates at 1, 5, and 9 years were compared according to the surgery type: musculotendinous section (MTS) only group (n = 25), 94.7%, 94.7%, and 94.7%; MTS with in situ revascularization group (n = 55), 90.1%, 77.0%, and 77.0%; and bypass surgery group (n = 29), 88.6%, 82.7%, and 68.9%, respectively. In multivariate analysis for the loss of primary patency, bypass using PTFE graft (hazard ratio, 9.676; 95% confidence interval, 1.032-90.736; P = .047) was a statistically significant risk factor. Conclusion: Patients with early-stage PAES treated with MTS alone showed excellent long-term primary patency. When arterial reconstruction was needed in PAES, MTS with in situ revascularization and bypass surgery showed comparable long-term primary patency. However, bypass surgery using PTFE graft should be avoided due to the high risk of occlusion. (J Vasc Surg 2025;81:957-64.) | Roh, Young-Nam; Woo, Hye Young; Kim, Dong-Ik; Park, Joon-Kee; Kim, Hyung-Kee; Kim, Young-Wook; Joh, Jin Hyun; Mo, Hyejin; Yun, Sangchul; Hwang, Deokbi; Kwon, Jungnam; Yang, Keunho; Jo, Eun-Ah; Jung, Hyuk Jae; Kwon, Sang-Hwi; Min, Seung-Kee | Yeungnam Univ, Coll Med, Dept Surg, Daegu, South Korea; Ajou Univ Hosp, Dept Surg, Suwon, South Korea; Sungkyunkwan Univ, Samsung Med Ctr, Div Vasc Surg, Seoul, South Korea; Kyungpook Natl Univ, Sch Med, Chilgok Hosp, Div Vasc & Endovasc Surg, Daegu, South Korea; Incheon Sejong Hosp, Div Vasc Surg, Incheon, South Korea; Kyung Hee Univ, Coll Med, Gangdong Kyung Hee Univ Hosp, Dept Surg, Seoul, South Korea; Seoul Natl Univ, Seoul Metropolitan Govt, Boramae Med Ctr, Dept Surg, Seoul, South Korea; Soonchunhyang Univ, Seoul Hosp, Coll Med, Dept Surg, Seoul 140743, South Korea; Kyungpook Natl Univ, Sch Med, Kyungpook Natl Univ Hosp, Div Vasc & Endovasc Surg, Daegu, South Korea; Wonkwang Univ, Coll Med, Dept Surg, Wonkwang Univ Hosp, Iksan, South Korea; Inje Univ, Sanggye Paik Hosp, Coll Med, Dept Surg, Seoul, South Korea; Chung Ang Univ, Coll Med, Chung Ang Univ Hosp, Dept Surg, Seoul, South Korea; Pusan Natl Univ, Pusan Natl Univ Hosp, Dept Surg, Coll Med, Pusan, South Korea; Daegu Fatima Hosp, Dept Orthoped Surg, Daegu, South Korea | ; Jo, Eun-Ah/AAS-5107-2020; Min, Seung-Kee/J-5471-2012; Kim, Hyung-Kee/JBR-8125-2023 | 23490099900; 57207261228; 57188706719; 57374274100; 35169819900; 36068750600; 7005275040; 57208326362; 56098447300; 57194422879; 59518779600; 37044131000; 57216413880; 57193660067; 59519773000; 55547764200 | skminmd@snuh.org; | JOURNAL OF VASCULAR SURGERY | J VASC SURG | 0741-5214 | 1097-6809 | 81 | 4 | SCIE | PERIPHERAL VASCULAR DISEASE;SURGERY | 2024 | 3.6 | 11.1 | 0 | 2025-05-07 | 0 | 1 | Patency; Popliteal artery entrapment syndrome; Surgery | CT ANGIOGRAPHY; COMPRESSION; DIAGNOSIS | Patency; Popliteal artery entrapment syndrome; Surgery | Adolescent; Adult; Aged; Aged, 80 and over; Arterial Occlusive Diseases; Blood Vessel Prosthesis Implantation; Databases, Factual; Endovascular Procedures; Female; Humans; Male; Middle Aged; Popliteal Artery; Republic of Korea; Retrospective Studies; Risk Factors; Time Factors; Treatment Outcome; Vascular Patency; Young Adult; adolescent; adult; aged; ankle brachial index; artery reconstruction; Article; blood clot lysis; bypass surgery; claudication; comorbidity; conservative treatment; controlled study; current smoker; diabetes mellitus; disease severity; dyslipidemia; echography; endarterectomy; ex-smoker; female; follow up; gastrocnemius muscle; human; human tissue; hypertension; information processing; long term care; major clinical study; male; multivariate analysis; myotendinous junction; open surgery; paresthesia; percutaneous transluminal angioplasty; popliteal artery; popliteal artery entrapment syndrome; retrospective study; revascularization; risk factor; statistical analysis; thrombectomy; thrombosis; treatment outcome; vascular disease; vascular surgery; vein bypass; vein graft; wound infection; x-ray computed tomography; adverse event; blood vessel transplantation; clinical trial; devices; diagnostic imaging; endovascular surgery; factual database; middle aged; multicenter study; pathophysiology; peripheral arterial disease; popliteal artery; South Korea; surgery; time factor; treatment outcome; vascular patency; very elderly; young adult | English | 2025 | 2025-04 | 10.1016/j.jvs.2024.12.003 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |
| ○ | ○ | Article | Optimal Feedback Bit Allocation for MU-MIMO Systems Combined With OFDM in Cellular Networks | In this correspondence, we investigate the performance of multiuser multiple-input and multiple-output (MU-MIMO) systems in cellular networks using Poisson point process (PPP) models. Focusing on limited-feedback-based MU-MIMO combined with orthogonal frequency division multiplexing (OFDM), we aim to maximize the sum rate of users in wide-band cellular networks. To achieve this, we formulate a centralized feedback bit allocation problem and propose an approximation for the instantaneous signal-to-interference-plus-noise ratio (SINR), as it is difficult to obtain accurately at the transmitter. Using Karush-Kuhn-Tucker (KKT) conditions, we derive closed-form solutions for optimal feedback bit allocation. Our results demonstrate significant performance improvements compared to conventional equal feedback bit allocation, providing practical insights for enhancing the spectral efficiency of wideband communication systems in cellular networks. | Kim, Jeongbin; Min, Moonsik | Korea Adv Inst Sci & Technol, Sch Elect Engn, Daejeon 34141, South Korea; Kyungpook Natl Univ, Sch Elect & Elect Engn, Daegu 41566, South Korea | 57865652100; 55386299100 | kjungbin6560@kaist.ac.kr; msmin@knu.ac.kr; | IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY | IEEE T VEH TECHNOL | 0018-9545 | 1939-9359 | 74 | 5 | SCIE | ENGINEERING, ELECTRICAL & ELECTRONIC;TELECOMMUNICATIONS;TRANSPORTATION SCIENCE & TECHNOLOGY | 2024 | 7.1 | 11.1 | 0 | 2025-05-07 | 0 | 0 | OFDM; Cellular networks; Bit rate; Vectors; Interference; Signal to noise ratio; Downlink; Resource management; Quantization (signal); Spectral efficiency; MU-MIMO; limited feedback; spectral efficiency; cellular network | CHANNELS | cellular network; limited feedback; MU-MIMO; OFDM; spectral efficiency | Mobile telecommunication systems; Cellular network; Feedback bit allocations; Limited feedback; Multiple input and multiple output systems; Multiple input and multiple outputs; Multiuser multiple-input and multiple-output; Multiusers; Optimal Feedback; Orthogonal frequency-division multiplexing; Spectral efficiencies; Orthogonal frequency division multiplexing | English | 2025 | 2025-05 | 10.1109/tvt.2025.3528756 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | Article | Optimized Beamforming for Multi-Antenna Downlink NOMA With Low-Resolution DACs and ADCs | Non-orthogonal multiple access (NOMA) has emerged as a promising technique for enabling massive connectivity and enhancing spectral efficiency. However, the adoption of low-resolution digital-to-analog converters and analog-to-digital converters in practical systems introduces significant quantization errors, posing challenges for system performance. This paper proposes a novel beamforming design for downlink NOMA systems that accounts for quantization errors caused by low-resolution converters. Leveraging the additive quantization noise model, we derive an expression for the signal-to-interference-plus-noise ratio (SINR) of each user and formulate a power minimization problem under SINR-based quality-of-service constraints. To simplify the problem, we introduce a relaxation method that enables a solution using the Karush-Kuhn-Tucker conditions, leading to near-optimal beamforming vectors. Simulation results reveal that the proposed scheme achieves significant improvements in sum spectral efficiency compared to existing approaches for space-division multiple access and rate-splitting multiple access under identical converters and power constraints, demonstrating its potential for energy-efficient NOMA system design. © 1967-2012 IEEE. | Lim, Dogyu; Kim, Jeongbin; Min, Moonsik | Kyungpook National University, School of Electronic and Electrical Engineering, Daegu, 41566, South Korea; Korea Advanced Institute of Science and Technology, School of Electrical Engineering, Daejeon, 34141, South Korea; Kyungpook National University, School of Electronic and Electrical Engineering, Daegu, 41566, South Korea | 59383380900; 57865652100; 55386299100 | IEEE Transactions on Vehicular Technology | IEEE T VEH TECHNOL | 0018-9545 | 1939-9359 | SCIE | ENGINEERING, ELECTRICAL & ELECTRONIC;TELECOMMUNICATIONS;TRANSPORTATION SCIENCE & TECHNOLOGY | 2024 | 7.1 | 11.1 | 0 | beamforming; low-resolution converter; NOMA; RSMA; SDMA | Antennas; Digital to analog conversion; Energy efficiency; Quality of service; Quantization (signal); Signal interference; Signal to noise ratio; Space division multiple access; Low-resolution converter; Lower resolution; Multiple access; Multiple access systems; Non-orthogonal; Non-orthogonal multiple access; Quantization errors; Resolution converters; RSMA; Spectral efficiencies; Beamforming | English | Article in press | 2025 | 10.1109/tvt.2025.3581210 | 바로가기 | 바로가기 | 바로가기 | ||||||||||||
| ○ | ○ | Article | Radiographic and neurological outcomes of Gamma Knife radiosurgery for lower cranial nerve schwannomas: a single-institution experience | OBJECTIVE Gamma Knife radiosurgery (GKRS) is widely used for treating small- to medium-sized or postoperative residual, recurrent lower cranial nerve schwannomas (LCNSs). This study aimed to evaluate the radiographic and neurological outcomes of GKRS for LCNS. METHODS A total of 60 patients with 47 jugular foramen schwannomas (JFSs) and 13 hypoglossal nerve schwannomas (HNSs) who underwent GKRS were included. Dysphagia (40.4%) and hoarseness (23.4%) were the most common preexisting symptoms associated with JFS, whereas tongue deviation (53.8%) was prevalent in HNS. The median tumor volumes were 3.2 cm3 and 2.2 cm3 for JFSs and HNSs, respectively. The median marginal dose administered to the tumor was 13 Gy (range 12-15 Gy). The median follow-up duration was 52.8 months. RESULTS Local tumor control was achieved in 91.5% of JFSs and 92.3% of HNSs. The preexisting neurological symptoms improved in 48.9% of patients with JFS and remained stable in 29.8%. However, 10 patients (21.3%) experienced exacerbation of symptoms associated with cranial nerves VII, VIII, IX, X, and XI. Among these, 3 patients (6.4%) exhibited persistent symptomatic deterioration. Patients with HNSs demonstrated a stable trajectory without symptom aggravation. Larger tumor volume and cystic portion were significantly associated with tumor progression (p = 0.017 and 0.003, respectively), and post-GKRS transient swelling was associated with neurological deterioration (p = 0.044). CONCLUSIONS GKRS is an alternative treatment option for LCNS that reduces surgical morbidity and enhances tumor control. However, GKRS can potentially lead to neurological deterioration, necessitating extreme caution throughout the procedure, specifically for JFSs. | Byeon, Yukyeng; Lee, Chaejin; Kim, Gung Ju; Jeon, Juhee; Chong, Sangjoon; Song, Sang Woo; Cho, Young Hyun; Hong, Seok Ho; Hong, Chang-Ki; Kim, Jeong Hoon; Kim, Young-Hoon | Univ Ulsan, Coll Med, Asan Med Ctr, Dept Neurosurg, Seoul, South Korea; Kyungpook Natl Univ Hosp, Dept Neurosurg, Daegu, South Korea | Cho, Young/AAV-8697-2021 | 56183790500; 57211989339; 58905520300; 58906037300; 37664614800; 55104329100; 55472215500; 57203319535; 57208356870; 57201965829; 58304779800 | justin527@hanmail.net; | JOURNAL OF NEUROSURGERY | J NEUROSURG | 0022-3085 | 1933-0693 | 142 | 2 | SCIE | CLINICAL NEUROLOGY;SURGERY | 2024 | 3.6 | 11.1 | 5.77 | 2025-05-07 | 1 | 1 | Gamma Knife; stereotactic radiosurgery; jugular foramen schwannoma; hypoglossal nerve schwannoma | JUGULAR FORAMEN SCHWANNOMAS; STEREOTACTIC RADIOSURGERY; MICROSURGICAL MANAGEMENT; VESTIBULAR-SCHWANNOMAS; FACIAL-NERVE; PRESERVATION; SURGERY | Gamma Knife; hypoglossal nerve schwannoma; jugular foramen schwannoma; stereotactic radiosurgery | Adolescent; Adult; Aged; Aged, 80 and over; Cranial Nerve Neoplasms; Female; Follow-Up Studies; Humans; Jugular Foramina; Male; Middle Aged; Neurilemmoma; Radiosurgery; Retrospective Studies; Treatment Outcome; Tumor Burden; Young Adult; gadolinium; adult; aged; Article; ataxia; clinical outcome; cohort analysis; controlled study; cranial nerve; cranial nerve tumor; deterioration; disease control; disease exacerbation; dizziness; dysarthria; dysphagia; facial nerve paralysis; female; follow up; gamma knife radiosurgery; hearing disorder; hoarseness; human; hypoglossal nerve; jugular foramen; major clinical study; male; middle aged; muscle weakness; neurilemoma; neurologic disease; nuclear magnetic resonance imaging; radiation dose; radiodiagnosis; retrospective study; swelling; tongue disease; trapezius muscle; tumor volume; adolescent; adverse event; cranial nerve tumor; diagnostic imaging; neurilemoma; procedures; radiosurgery; radiotherapy; surgery; treatment outcome; tumor burden; very elderly; young adult | English | 2025 | 2025-02 | 10.3171/2024.5.jns24664 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |
| ○ | ○ | Article | Scalable Cell-Free Massive MIMO Networks Using Resource-Optimized Backhaul and PSO-Driven Fronthaul Clustering | Scalability presents a formidable challenge in traditional Cell-Free (CF) massive Multiple Input Multiple Output (mMIMO) networks, driven by escalating computational demands on access points (APs) and the reliance on a single central processing unit (CPU). To address this, the study proposes a dynamic cooperative clustering (DCC) method, tailored for both backhaul (CPUs-APs) and fronthaul (APs-Users). In the backhaul phase, DCC strategically pairs APs with CPUs using the Kuhn-Munkres algorithm, ensuring equitable resource allocation by considering distance matrices, channel statistics, APs traffic load, and available CPU resources, thereby fairly balancing the distribution of computational load across the CPUs. Subsequently, in the fronthaul phase, the focus is on optimizing the selection of APs for user-centric clusters, using Particle Swarm Optimization (PSO). This optimization aims to maximize the overall sum rate while intelligently managing the inclusion and exclusion of APs within each user-serving cluster. Through extensive simulations, the study highlights the potential of the proposed approach to address scalability concerns in CF-massive MIMO systems, promising improved performance in wireless communication networks. The comparative analysis demonstrates the superiority of the proposed scheme over conventional clustering schemes, consistently delivering better sum rates across various scenarios, with an 18.23% improvement in sum rate and a 30% enhancement in Load Balancing Index (LBI), indicating significantly improved resource distribution and network efficiency. | Ajmal, Mahnoor; Tariq, Muhammad Ashar; Saad, Malik Muhammad; Kim, Sunghyun; Kim, Dongkyun | Kyungpook Natl Univ, Sch Comp Sci & Engn, Daegu 41566, South Korea | 마, 누르아즈말/NRY-5736-2025; Saad, Malik/ABF-9433-2021 | 57238144300; 57219865336; 57220715290; 58805776300; 35753648800 | mahnoor.ajmal@knu.ac.kr; tariqashar@knu.ac.kr; maliksaad@knu.ac.kr; sunghyunkim@knu.ac.kr; dongkyun@knu.ac.kr; | IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY | IEEE T VEH TECHNOL | 0018-9545 | 1939-9359 | 74 | 1 | SCIE | ENGINEERING, ELECTRICAL & ELECTRONIC;TELECOMMUNICATIONS;TRANSPORTATION SCIENCE & TECHNOLOGY | 2024 | 7.1 | 11.1 | 0 | 2025-05-07 | 1 | 1 | Backhaul networks; Scalability; Clustering algorithms; Central Processing Unit; Wireless communication; Vehicle dynamics; Heuristic algorithms; Backhaul clusters; CF-mMIMO; fronthaul clusters; scalability | Backhaul clusters; CF-mMIMO; fronthaul clusters; scalability | Cluster computing; Clustering algorithms; Communication channels (information theory); Resource allocation; Scalability; Access points; Backhaul cluster; Cell-free; Cell-free-massive multiple input multiple output; Fronthaul cluster; Multiple inputs; Multiple outputs; Particle swarm; Sum-rate; Swarm optimization; Particle swarm optimization (PSO) | English | 2025 | 2025-01 | 10.1109/tvt.2024.3465458 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | Article | Structural Insights into Novel Thiolases for Enhancing the Production of Tailored Biochemicals | Thiolase is essential in the first step of synthesizing many value-added biochemicals. However, only a few feasible THLs have been reported, and a limited understanding of these enzymes has restricted their broader application in valuable production processes. In this study, biochemical and structural analysis identified the specific properties of THLs belonging to three groups for synthesizing medium- to long-chain fatty acids, polyketide, and dicarboxylic acid, represented by adipic acid. We further demonstrated that hydrolysis activity, considered a rate-limiting step in the biosynthetic process, can be alleviated through flux balance and site-directed mutagenesis. Notably, we discovered two THLs with strong biosynthetic abilities and low hydrolysis: PaTHL4, effective for medium- to long-chain fatty acids and polyketides, and PaTHL7, tailored for adipic acid production. This study provides valuable insights into tailored THLs for specific biochemical production. © 2024 American Chemical Society. | Hong, Jiyeon; Son, Hyeoncheol Francis; Park, So-Young; Park, Jiyoung; Seo, Hogyun; Liu, Kwang-Hyeon; Kim, Kyung-Jin | School of Life Sciences, BK21 FOUR KNU, Creative BioResearch Group, Kyungpook National University, Daegu, 41566, South Korea, KNU, Institute for Microorganisms, Kyungpook National University, Daegu, 41566, South Korea, Research Institute, Genetox Inc., Gangwon-do, Hoengseong, 25244, South Korea; School of Biological Sciences and Technology, Chonnam National University, Gwangju, 61186, South Korea, Institute of Synthetic Biology for Carbon Neutralization, Chonnam National University, Gwangju, 61186, South Korea; BK21 FOUR, Community-Based Intelligent Novel Drug Discovery Education Unit, College of Pharmacy, Research Institute of Pharmaceutical Sciences, Kyungpook National University, Daegu, 41566, South Korea, Mass Spectrometry Based Convergence Research Institute, Kyungpook National University, Daegu, 41566, South Korea; School of Life Sciences, BK21 FOUR KNU, Creative BioResearch Group, Kyungpook National University, Daegu, 41566, South Korea; KNU, Institute for Microorganisms, Kyungpook National University, Daegu, 41566, South Korea; BK21 FOUR, Community-Based Intelligent Novel Drug Discovery Education Unit, College of Pharmacy, Research Institute of Pharmaceutical Sciences, Kyungpook National University, Daegu, 41566, South Korea, Mass Spectrometry Based Convergence Research Institute, Kyungpook National University, Daegu, 41566, South Korea; School of Life Sciences, BK21 FOUR KNU, Creative BioResearch Group, Kyungpook National University, Daegu, 41566, South Korea, KNU, Institute for Microorganisms, Kyungpook National University, Daegu, 41566, South Korea | 57205354591; 56015598000; 57211630074; 56188468900; 57189697998; 55768214700; 55510867400 | dstlkh@knu.ac.kr; kkim@knu.ac.kr; | ACS Catalysis | ACS CATAL | 2155-5435 | 2155-5435 | 15 | 2 | SCIE | CHEMISTRY, PHYSICAL | 2024 | 13.1 | 11.1 | 0 | 2025-05-07 | 0 | biosynthesis; Pseudomonas aeruginosa; rate limiting step; reverse β-oxidation; thiolase | Biosynthesis; Adipic acids; Broad application; Long chain fatty acid; Long-chain fatty acids; Polyketides; Pseudomonas aeruginosa; Rate-limiting steps; Reverse β-oxidation; Structural insights; Thiolase; Hydrolysis | English | Final | 2025 | 10.1021/acscatal.4c05635 | 바로가기 | 바로가기 | 바로가기 | |||||||
| ○ | ○ | Article | Permanent strain behavior of basalt fiber-reinforced controlled low-strength material under repeated loading | Controlled low-strength material (CLSM) is a flowable, self-leveling backfill material used as an alternative to compacted soil for backfilling trenches, retaining walls, underground cavities, and in pavement construction. This study aims to investigate the permanent deformation of CLSM reinforced with basalt fibers. Basalt fibers with lengths of 6 and 24 mm are incorporated into CLSM mixtures to assess their impact on flowability, setting times, and mechanical properties. Mechanical testing indicates that longer fibers improve tensile strength through a bridging effect. Repeated load triaxial tests are conducted to evaluate the permanent strain behavior under repeated loading. The results show that permanent strain increases with the deviator stress and number of loading cycles. A regression model accounting for the number of loading cycles and deviator stress provides accurate permanent-strain predictions, and the permanent strain behaviors are classified based on the refined shakedown theory. Therefore, the basalt-fiber-reinforced CLSM suggested in this study may be suitable for pavement base material due to its relatively low permanent strain under typical stress conditions. | Son, Dong Geon; Lee, Jong-Sub; Kim, Seungjun; Byun, Yong-Hoon | Korea Univ, Sch Civil Environm & Architectural Engn, 145 Anam Ro, Seoul 02841, South Korea; Kyungpook Natl Univ, Dept Agr Civil Engn, 80 Daehak Ro, Daegu 41566, South Korea | Byun, Yong-Hoon/JKI-8441-2023 | 58490365100; 55690048400; 55498261300; 42761048000 | yhbyun@knu.ac.kr; | TRANSPORTATION GEOTECHNICS | TRANSP GEOTECH | 2214-3912 | 52 | SCIE | ENGINEERING, CIVIL;ENGINEERING, GEOLOGICAL | 2024 | 5.5 | 11.2 | 0 | 2025-05-07 | 0 | 0 | Basalt fiber; Controlled low-strength material; Repeated load; Permanent strain; Reinforcement | DEFORMATION-BEHAVIOR; GRANULAR-MATERIALS; PAVEMENT BASE; CEMENTLESS; CONCRETE; CLSM; SOIL; ASH | Basalt fiber; Controlled low-strength material; Permanent strain; Reinforcement; Repeated load | basalt; deformation; loading; reinforcement; strain analysis; tensile strength | English | 2025 | 2025-05 | 10.1016/j.trgeo.2025.101570 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | Article | Root decomposition of four temperate species in the Republic of Korea: associations of root traits and microbial community with root decay | Background and aims: Despite the importance of root litter decomposition on biogeochemical processes in forest ecosystems, the factors controlling its variability with diameter sizes and species remain uncertain. We aimed to investigate the decomposition rates of roots with varying diameters from four temperate species (Quercus mongolica, Pinus koraiensis, Pinus densiflora, and Larix kaempferi) and the influence of root traits and microbial community on root decomposition. Methods: We conducted a 359-day litterbag decomposition experiment from December 5, 2022 to November 29, 2023 with roots sorted into four diameter classes (0–0.5 mm, 0.5–1 mm, 1–2 mm, and 2–5 mm). Initial root chemical (C, N, C:N, P, K, Mg, Ca, hemicellulose, cellulose, and lignin) and morphological traits (specific area and length) were determined. Mineral soil was sampled to analyze the microbial community. Results: Decomposition rates across species were higher for P. densiflora (0–0.5 and 2–5 mm roots) and P. koraiensis (0.5–1 and 1–2 mm roots). Roots with 0.5–1 mm decomposed more rapidly for P. koraiensis and L. kaempferi; however, the decay of Q. mongolica and P. densiflora did not differ among root diameters. Decomposition was positively related to initial Mg, P, N, K, specific root length and area, and fungal Shannon index, and negatively related to C:N and C. Conclusion: Chemical traits and microbial diversity are key drivers controlling species-based decomposition patterns. Additionally, our data showed that diameter-based decomposition patterns are species-specific, and diameter is not always a determinant factor for predicting decomposition. This study offers insights into the root decomposition processes in temperate forests, highlighting the complexity surrounding root decomposition patterns. © The Author(s), under exclusive licence to Springer Nature Switzerland AG 2025. | Carvalho, Julia Inacio; An, Ji Young; Tran, Lan Thi Ngoc; Carayugan, Mark Bryan; Kong, Ye Jin; Jo, Min Seon; Hintural, Wencelito Palis; Rahman, S. K. Abidur; Lee, Hyun Ju; Park, Sang Hyun; Yeo, Jong Chan; Kim, Hyung Won; Youn, Woo Bin; Lee, Seok Hui; Park, Byung Bae | Department of Forest Resources, College of Agriculture and Life Science, Chungnam National University, Daejeon, 34134, South Korea; Division of Environmental and Forest Science, College of Agriculture and Life Sciences, Gyeongsang National University, Jinju, 52725, South Korea, Institute of Agricultural and Life Science, Gyeongsang National University, Jinju, 52828, South Korea; Forest Environment and Geospatial Technology Research Institute, Sejong, 30098, South Korea; Department of Forest Resources, College of Agriculture and Life Science, Chungnam National University, Daejeon, 34134, South Korea; Department of Forest Resources, College of Agriculture and Life Science, Chungnam National University, Daejeon, 34134, South Korea; Department of Forest Resources, College of Agriculture and Life Science, Chungnam National University, Daejeon, 34134, South Korea, Gyeryongsan National Park Office, Korea National Park Service, Gongju, 32626, South Korea; Department of Forest Resources, College of Agriculture and Life Science, Chungnam National University, Daejeon, 34134, South Korea; Department of Forest Resources, College of Agriculture and Life Science, Chungnam National University, Daejeon, 34134, South Korea; Department of Forest Resources, College of Agriculture and Life Science, Chungnam National University, Daejeon, 34134, South Korea; Department of Forest Resources, College of Agriculture and Life Science, Chungnam National University, Daejeon, 34134, South Korea; Department of Forest Resources, College of Agriculture and Life Science, Chungnam National University, Daejeon, 34134, South Korea; Department of Forest Resources, College of Agriculture and Life Science, Chungnam National University, Daejeon, 34134, South Korea; Department of Forest Resources, College of Agriculture and Life Science, Chungnam National University, Daejeon, 34134, South Korea; Department of Forestry, Kyungpook National University, Daegu, 41566, South Korea; Department of Forest Resources, College of Agriculture and Life Science, Chungnam National University, Daejeon, 34134, South Korea | 58570753200; 57188761892; 57216621081; 57212506702; 59165189600; 58570804900; 58250765600; 58278167500; 57192501945; 58771930900; 59164663300; 59164663400; 57202132199; 58419182700; 7402834688 | bbpark@cnu.ac.kr; | Plant and Soil | PLANT SOIL | 0032-079X | 1573-5036 | SCIE | AGRONOMY;PLANT SCIENCES;SOIL SCIENCE | 2024 | 4.1 | 11.2 | 0 | 2025-05-07 | 0 | Biomass; Decomposition rate; Forest ecosystems; Initial litter quality; Microbial communities; Nutrient cycling | English | Article in press | 2025 | 10.1007/s11104-025-07276-y | 바로가기 | 바로가기 | 바로가기 |
페이지 이동: