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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 | Multiexposed Image-Fusion Strategy Using Mutual Image Translation Learning with Multiscale Surround Switching Maps | The dynamic range of an image represents the difference between its darkest and brightest areas, a crucial concept in digital image processing and computer vision. Despite display technology advancements, replicating the broad dynamic range of the human visual system remains challenging, necessitating high dynamic range (HDR) synthesis, combining multiple low dynamic range images captured at contrasting exposure levels to generate a single HDR image that integrates the optimal exposure regions. Recent deep learning advancements have introduced innovative approaches to HDR generation, with the cycle-consistent generative adversarial network (CycleGAN) gaining attention due to its robustness against domain shifts and ability to preserve content style while enhancing image quality. However, traditional CycleGAN methods often rely on unpaired datasets, limiting their capacity for detail preservation. This study proposes an improved model by incorporating a switching map (SMap) as an additional channel in the CycleGAN generator using paired datasets. The SMap focuses on essential regions, guiding weighted learning to minimize the loss of detail during synthesis. Using translated images to estimate the middle exposure integrates these images into HDR synthesis, reducing unnatural transitions and halo artifacts that could occur at boundaries between various exposures. The multilayered application of the retinex algorithm captures exposure variations, achieving natural and detailed tone mapping. The proposed mutual image translation module extends CycleGAN, demonstrating superior performance in multiexposure fusion and image translation, significantly enhancing HDR image quality. The image quality evaluation indices used are CPBDM, JNBM, LPC-SI, S3, JPEG₂₀₀₀, and SSEQ, and the proposed model exhibits superior performance compared to existing methods, recording average scores of 0.6196, 15.4142, 0.9642, 0.2838, 80.239, and 25.054, respectively. Therefore, based on qualitative and quantitative results, this study demonstrates the superiority of the proposed model. | Go, Young-Ho; Lee, Seung-Hwan; Lee, Sung-Hak | Kyungpook Natl Univ, Sch Elect & Elect Engn, 80 Daehak ro, Daegu 41566, South Korea | 58966827500; 58149054300; 7601395661 | gyh7454@knu.ac.kr;hyo98120@knu.ac.kr;shak2@ee.knu.ac.kr; | MATHEMATICS | MATHEMATICS-BASEL | 2227-7390 | 12 | 20 | SCIE | MATHEMATICS | 2024 | 2.2 | 5.9 | 0.75 | 2025-05-07 | 1 | 1 | CycleGAN; multiexposed image fusion; mutual image translation learning; switching map | QUALITY ASSESSMENT | CycleGAN; multiexposed image fusion; mutual image translation learning; switching map | English | 2024 | 2024-10 | 10.3390/math12203244 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||||
| ○ | ○ | Article | Multifunctional and edible egg white/amylose-tannin bilayer film for perishable fruit preservation | The substantial waste of perishable foods during transportation significantly contributes to greenhouse gas emissions, intensifying the climate crisis. To mitigate the rapid spoilage of fruits, an eco-friendly bilayer film was developed using natural egg white (EW), amylose (Am), and tannic acid (TA). The EW/Am-TA bilayer film features a primary layer of amphiphilic EW, ensuring a uniform coating on hydrophobic fruit surfaces, and a secondary layer composed of Am and TA, imparting notable tensile strength (5.3 +/- 0.5 MPa) and elongation at break (28.5 +/- 4.1 %). This bilayer film effectively shields fruits from UV-B and UV-C radiation (similar to 0 % transmittance at 280 and 330 nm) and exhibits antioxidant and antibacterial properties due to the presence of TA. Fruits such as bananas, avocados, and cherry tomatoes, when dip-coated with the optimized EW/Am-TA bilayer, maintained their freshness, color, weight, and texture for up to seven days, demonstrating the effectiveness of this bilayer coating in food preservation. The natural materials in the coated film are edible and can be safely removed with tap water at room temperature in <10 s, posing no food safety risks. Thus, the proposed bilayer coating presents a significant solution to the global problem of food waste. | Kim, Tae In; Lee, Su Jin; Chathuranga, Kiramage; Lee, Jong Soo; Kim, Min Hee; Park, Won Ho | Chungnam Natl Univ, Dept Organ Mat Engn, Daejeon 34134, South Korea; Chungnam Natl Univ, Coll Vet Med, Dept Vet Microbiol, Daejeon 34134, South Korea; Kyungpook Natl Univ, Dept Text Engn, Sangju 37224, South Korea | ; Chathuranga, Kiramage/AAS-6339-2020 | 59187698500; 57831994400; 57194522108; 56042332000; 57188948163; 57211114215 | mhkim88@knu.ac.kr;parkwh@cnu.ac.kr; | INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES | INT J BIOL MACROMOL | 0141-8130 | 1879-0003 | 274 | SCIE | BIOCHEMISTRY & MOLECULAR BIOLOGY;CHEMISTRY, APPLIED;POLYMER SCIENCE | 2024 | 8.5 | 5.9 | 2.1 | 2025-05-07 | 7 | 7 | Egg white; Amylose; Tannic acid; Edible film; Dip coating; Fruit preservation | EMULSIFYING PROPERTIES; ACID; STARCH; WHITE | Amylose; Dip coating; Edible film; Egg white; Fruit preservation; Tannic acid | Amylose; Anti-Bacterial Agents; Antioxidants; Edible Films; Egg White; Food Packaging; Food Preservation; Fruit; Tannins; Coatings; Cyclodextrins; Flavonoids; Fruits; Gas emissions; Greenhouse gases; Spoilage; Tannins; Tensile strength; amylose; egg white; egg white amylose tannin bilayer film; preservative; tannin; unclassified drug; amylose; antiinfective agent; antioxidant; egg white; tannin derivative; Amylose; Bi-layer coatings; Bi-layer films; Dip coating; Eco-friendly; Edible films; Egg white; Fruit preservation; Greenhouse gas emissions; Tannic acid; ABTS radical scavenging assay; antibacterial activity; antioxidant activity; Article; attenuated total reflectance Fourier transform infrared spectroscopy; avocado; banana; biopreservation; chemical composition; cherry tomato; contact time; dip coating; dissolution; Escherichia coli; field emission scanning electron microscopy; fruit storage test; human; investigative procedures; perishable fruit preservation; physical parameters; relative crystallinity; room temperature; Staphylococcus aureus; tensile strength; texture analysis; tomato; ultraviolet B radiation; ultraviolet C radiation; ultraviolet spectrophotometry; washability test; water contact angle; water sensitivity; weight loss rate; X ray diffraction; zone of inhibition; chemistry; edible packaging; food packaging; food preservation; fruit; procedures; Dip coating | English | 2024 | 2024-08 | 10.1016/j.ijbiomac.2024.133207 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Optimal Feedback Rate for Multi-Antenna Maximum Ratio Transmission in Single-User MIMO Systems with One-Bit Analog-to-Digital Converters in Dense Cellular Networks | Stochastic geometry has emerged as a powerful tool for modeling cellular networks, especially in dense deployment scenarios where inter-cell interference is significant. Previous studies have extensively analyzed multi-antenna systems with partial channel state information at the transmitter (CSIT) using stochastic geometry models. However, most of these works assume the use of infinite-resolution analog-to-digital converters (ADCs) at the receivers. Recent advances in low-resolution ADCs, such as one-bit ADCs, offer an energy-efficient alternative for millimeter-wave systems, but the interplay between limited feedback and one-bit ADCs remains underexplored in such networks. This paper addresses this gap by analyzing the optimal feedback rate that maximizes net spectral efficiency in dense cellular networks, modeled using stochastic geometry, with both limited feedback and one-bit ADC receivers. We introduce an approximation of the achievable spectral efficiency to derive a differentiable expression of the optimal feedback rate. The results show that while the scaling behavior of the optimal feedback rate with respect to the channel coherence time remains unaffected by the ADC's resolution, the absolute values are significantly lower for one-bit ADCs compared to infinite-resolution ADCs. Simulation results confirm the accuracy of our theoretical approximations and demonstrate the impact of ADC resolution on feedback rate optimization. | Lee, Sungmin; Min, Moonsik | Kyungpook Natl Univ, Sch Elect & Elect Engn, Daegu 41566, South Korea | 57976218200; 55386299100 | armiche96@knu.ac.kr;msmin@knu.ac.kr; | MATHEMATICS | MATHEMATICS-BASEL | 2227-7390 | 12 | 23 | SCIE | MATHEMATICS | 2024 | 2.2 | 5.9 | 0 | 2025-05-07 | 0 | 0 | MU-MIMO; channel quantization; one-bit ADCs; limited feedback; maximum ratio transmission | channel quantization; limited feedback; maximum ratio transmission; MU-MIMO; one-bit ADCs | English | 2024 | 2024-12 | 10.3390/math12233760 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||||
| ○ | ○ | Article | Performance Optimization with LPV Synthesis for Disturbance Attenuation in Planar Motors | Optimizing the performance of motion control systems with variations in nonlinear parameters is not an easy task. To accomplish this task, it is important to design the controller using the linear system approach. In this study, a linear parameter varying (LPV) control method is proposed in which nonlinearities are treated as parameter variations for planar motors. The proposed control method consists of the force and torque modulation with the commutation scheme and the nonlinear current controller with H infinity state feedback control in the form of LPV synthesis to improve the position-tracking performance. An interpolated gain-scheduling controller based on LPV synthesis is determined by applying H infinity control to a linear matrix inequality technique. An interpolated gain-scheduling controller can attenuate disturbance without disturbance estimation. The effectiveness of the proposed control method is evaluated using simulation results and compared with the conventional proportional-integral-derivative control to verify both improved position-tracking performance and disturbance attenuation. | Su, Khac Huan; Park, Keunhoon; Son, Young Seop; Lee, Youngwoo | Eastern Int Univ, Dept Control & Automat Engn, Thu Dau Mot 820000, Vietnam; Hanyang Univ, Dept Elect Engn, Seoul 13391, South Korea; Kyungpook Natl Univ, Grad Sch Data Sci, Daegu 41566, South Korea; Hanyang Univ, Sch Elect Engn, Ansan 15588, South Korea | 57383459700; 59387785900; 35203958300; 57193443074 | huan.su@eiu.edu.vn;or3117@hanyang.ac.kr;ys.son@knu.ac.kr;stork@hanyang.ac.kr; | MATHEMATICS | MATHEMATICS-BASEL | 2227-7390 | 12 | 20 | SCIE | MATHEMATICS | 2024 | 2.2 | 5.9 | 0 | 2025-05-07 | 0 | 0 | planar motors; linear parameter varying system; linear matrix inequality; H-infinity control | H<sub>∞</sub> control; linear matrix inequality; linear parameter varying system; planar motors | English | 2024 | 2024-10 | 10.3390/math12203293 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||||
| ○ | ○ | Article | Plastome diversity and evolution in mosses: Insights from structural characterization, comparative genomics, and phylogenetic analysis | Mosses play a significant role in ecology, evolution, and the economy. They belong to the nonvascular plant kingdom and are considered the closest living relatives of the first terrestrial plants. The circular chloroplast DNA molecules (plastomes) of mosses contain all the genetic information essential for chloroplast functions and represent the source of the evolutionary history of these organisms. This study comprehensively analyzed the plastomes of 47 moss species belonging to 14 orders, focusing on their size, GC content, gene loss, gene content, synteny, and evolution. The findings revealed great differences among plastome sizes, with Takakia lepidozioides (Takakiopsida) and Funaria hygrometrica (Funariales) having the largest and smallest plastomes, respectively. Moss plastomes included 69 to 89 protein-coding genes, 8 rRNA genes, and 34 to 42 tRNA genes, resulting in the total number of genes in a plastome ranging between 115 and 138. Various genes have been lost from the plastomes of different moss species, with Atrichum angustatum lacking the highest number of genes. This study also examined plastome synteny and moss evolution using comparative genomics and repeat sequence analysis. The results demonstrated that synteny and similarity levels varied across the 47 moss examined species, with some exhibiting structure similarity and others displaying structural inversions. Maximum likelihood and Bayesian approaches were used to construct a phylogenetic tree using 36 concatenated protein-coding genes, and the results revealed that the genera Sphagnum and Takakia are sister groups to the other mosses. Additionally, it was found that Tetraphidales, Polytrichales, Buxbaumiales, and Diphysciales are closely related. This research describes the evolutionary diversity of mosses and offers guidelines for future studies in this field. The findings also highlight the need for more investigations into the factors regulating plastome size variation in these plants. | Lubna; Asaf, Sajjad; Jan, Rahmatullah; Asif, Saleem; Bilal, Saqib; Khan, Abdul Latif; Kim, Kyung-Min; Lee, In-Jung; AL-Harrasi, Ahmed | Univ Nizwa, Nat & Med Sci Res Ctr, Nizwa 616, Oman; Kyungpook Natl Univ, Dept Appl Biosci, Daegu 41566, South Korea; Univ Houston, Dept Engn Technol, Sugar Land, TX 77479 USA | Ul-Hamid, Anwar/B-7297-2015; Asaf, Sajjad/ABA-3647-2021; Jan, Rahmatullah/AIC-3439-2022; Lee, In-Jung/GLS-0432-2022; Khan, Abdul/H-5910-2011 | 57200621537; 56595059900; 57201981969; 57396413700; 57031617400; 26639372800; 34868260300; 16425830900; 6506093146 | sajadasif2000@gmail.com;ijlee@knu.ac.kr;aharrasi@unizwa.edu.om; | INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES | INT J BIOL MACROMOL | 0141-8130 | 1879-0003 | 257 | SCIE | BIOCHEMISTRY & MOLECULAR BIOLOGY;CHEMISTRY, APPLIED;POLYMER SCIENCE | 2024 | 8.5 | 5.9 | 2.1 | 2025-05-07 | 10 | 7 | Bryophytes; Chloroplast genome; Diversity; Synteny; Phylogenetic analysis; Gene loss | CHLOROPLAST GENOME; PHYSCOMITRELLA-PATENS; NUCLEOTIDE-SEQUENCE; ORGANELLAR GENOMES; GENE ORGANIZATION; TRANSFER-RNA; LAND PLANTS; DNA; REPEATS; MATK | Bryophytes; Chloroplast genome; Diversity; Gene loss; Phylogenetic analysis; Synteny | Bayes Theorem; Bryophyta; Bryopsida; Evolution, Molecular; Genomics; Phylogeny; Bayesian networks; Plants (botany); Proteins; RNA; ribosome RNA; transfer RNA; Bryophyte; Chloroplast genome; Comparative genomics; Diversity; Gene loss; Moss species; Phylogenetic analysis; Plastomes; Protein-coding genes; Synteny; Article; Atrichum angustatum; Buxbaumiales; comparative genomics; controlled study; Diphysciales; Funaria hygrometrica; gene identification; gene loss; genetic analysis; genetic code; molecular evolution; moss; nonhuman; phylogeny; plant gene; Polytrichales; sequence analysis; simple sequence repeat; species diversity; species identification; structure analysis; synteny; Takakia lepidozioides; Tetraphidales; Bayes theorem; Bryopsida; genetics; genomics; molecular evolution; phylogeny; Genes | English | 2024 | 2024-02 | 10.1016/j.ijbiomac.2023.128608 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Prediction of Cognitive Impairment Using Sleep Lifelog Data and LSTM Model | Rapid elderly population growth has increased the number of patients with cognitive impairment (CI). Early detection and ongoing medical treatment can slow CI progression and significantly reduce the cost of managing patients. However, distinguishing CI from natural cognitive decline associated with aging is challenging. Previous studies conducted to identify patients with CI using lifelog data did not consider changes in lifelog data over time because each data point was learned individually. This study introduces a model that predicts patients with CI based on sleep lifelog data and analyzes significant sleep factors that influence cognitive decline. This study followed three steps: (1) collecting sleep lifelog data from elderly Korean people and reconstructing sleep lifelog data as time-series data; (2) building a model to classify CI using a time series of sleep lifelog data and a long short-term memory model; and (3) identifying sleep factors that influence the onset of CI using an explainable AI algorithm. The proposed CI classification model achieved a sensitivity of 0.89, a specificity of 0.80, and an area under the receiver operating characteristic curve of 0.92. This study will facilitate the noninvasive screening, diagnosis, and continuous monitoring of CI in the elderly. | Hong, Junhee; Seol, Youngjin; Lee, Seunghyun; Yoon, Janghyeok; Lee, Jiho; Park, Ki-Su; Ha, Ji-Wan | Konkuk Univ, Dept Ind Engn, 120 Neungdong Ro, Seoul 05029, South Korea; Neopons Inc, Coll Med, 465 Dongdaegu Ro, Daegu 41260, South Korea; Kyungpook Natl Univ, Dept Neurosurg, Sch Med, 130 Dongdeok-ro, Daegu 41944, South Korea; Daegu Univ, Dept Speech Pathol, 201 Daegudae Ro, Gyongsan 38453, South Korea | 59387845500; 58679098800; 57222555957; 36451492000; 57221320001; 55932363100; 57072470300 | wnsgml019@konkuk.ac.kr;syj6151@konkuk.ac.kr;ant6836@konkuk.ac.kr;janghyoon@konkuk.ac.kr;jiholee255@neopons.com;kisupark@knu.ac.kr;jw-ha@daegu.ac.kr; | MATHEMATICS | MATHEMATICS-BASEL | 2227-7390 | 12 | 20 | SCIE | MATHEMATICS | 2024 | 2.2 | 5.9 | 0 | 2025-05-07 | 0 | 0 | cognitive impairment; sleep lifelog data; deep learning; health care | DEMENTIA; DISTURBANCES | cognitive impairment; deep learning; health care; sleep lifelog data | English | 2024 | 2024-10 | 10.3390/math12203208 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||||
| ○ | ○ | Article | Race, poverty, and space: A spatial intersectional approach to equity of urban park access | While earlier studies of environmental justice have empirically assessed in(equity) in urban park access, they have typically considered race/ethnicity and wealth factors separately as determinants of (in)equitable urban park access. However, this approach ignores the intersectional socioeconomic categories when identifying marginalized groups. Furthermore, there has been little research that visualized the spatially heterogeneous (in) equity of access to urban parks from an intersectional perspective on sociodemographic categories across communities. To address these research gaps, this study examined the spatially heterogeneous intersectionality of the socioeconomic categories of race and poverty (e.g., White poverty, African American poverty, and Asian poverty), in terms of access to urban parks across 784 census tracts in the Detroit Metropolitan Area. The findings showed that African American and Asian poverty groups had equitable access to urban parks. Furthermore, spatially heterogeneous (in)equitable urban park access was observed among intersectional minority groups. Such findings can be useful for park administrators in the Detroit Metropolitan Area seeking to distribute resources to neighborhoods that need increased access to urban parks. | Kim, Jinwon; Kim, Changwook; Lee, Seungji; Jeong, Ji Youn | Univ Florida, Dept Tourism Hospitality & Event Management, Gainesville, FL USA; Brock Univ, Dept Sport Management, St Catharines, ON, Canada; Clemson Univ, Dept Pk Recreat & Tourism Management, Clemson, SC USA; Kyungpook Natl Univ, Dept Tourism, Daegu, South Korea | ; Kim, Changwook/LKJ-2161-2024; Jeong, Ji Youn/KBB-3881-2024 | 56392161300; 57221217204; 58183770300; 57190002456 | jinwonkim@ufl.edu;changwookkim7@brocku.ca;seungji@clemson.edu;jjeong@knu.ac.kr; | CITIES | CITIES | 0264-2751 | 1873-6084 | 147 | SSCI | URBAN STUDIES | 2024 | 6.6 | 5.9 | 3.83 | 2025-05-07 | 9 | 10 | Urban park access; Equity; Intersectionality; Spatial heterogeneity; Detroit Metropolitan Area | ENVIRONMENTAL JUSTICE | Detroit Metropolitan Area; Equity; Intersectionality; Spatial heterogeneity; Urban park access | Detroit; Michigan; United States; accessibility; equity; marginalization; metropolitan area; minority group; neighborhood; poverty; race | English | 2024 | 2024-04 | 10.1016/j.cities.2024.104819 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Review | Recent progress in polysaccharide and polypeptide based modern moisture-retentive wound dressings | Wounds were considered as defects in the tissues of the human skin and wound healing is said to be a tedious process as there are possibilities of infection or inflammation due to microorganisms. Modern moisture-retentive wound dressing (MMRWD) is opening a new window toward wound therapy. It comprises different types of wound dressing that has classified based on their functionality. Selective polysaccharide-polypeptide fiber composite materials such as hydrogels, hydrocolloids, hydro fibers, transparent-film dressing, and alginate dressing are discussed in this review as a type of MMRWD. The highlight of this polysaccharide and polypeptide based MMRWD is that it supports and enhances the healing of different types of wounds by moisture absorption thus preventing infection. This study has given enlightenment on the application of selected polysaccharide and polypeptide based MMRWD that enhances wound healing actions still it has been observed that the composite wound healing dressing is more effective than the single one. The nano-sized materials (synthetic nano drugs and phyto drugs) were found to increase the efficiency of healing action while coated in the wound dressing material. Future research is required to find out more possibilities of the different composite types of wound dressing in the healing action. | Menon, N. P. Swetha; Kamaraj, M.; Sharmila, M. Anish; Govarthanan, M. | SRM Inst Sci & Technol Ramapuram, Fac Sci & Humanities, Dept Fash Designing, Chennai 600089, Tamil Nadu, India; Deemed Be Univ, Hindustan Inst Technol & Sci, Dept Fash Design & Arts, Chennai 603103, Tamil Nadu, India; SRM Inst Sci & Technol Ramapuram, Fac Sci & Humanities, Dept Biotechnol, Chennai 600089, Tamil Nadu, India; INTI Int Univ, Fac Hlth & Life Sci, Life Sci Div, Nilai 71800, Malaysia; Kyungpook Natl Univ, Dept Environm Engn, Daegu 41566, South Korea; Saveetha Univ, Saveetha Inst Med & Tech Sci, Saveetha Dent Coll & Hosp, Chennai 600077, India | ; Muthusamy, Govarthanan/C-1491-2014 | 58752898600; 55645159500; 58753132400; 54881927600 | drkamarajm@gmail.com;anishs@hindustanuniv.ac.in; | INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES | INT J BIOL MACROMOL | 0141-8130 | 1879-0003 | 256 | SCIE | BIOCHEMISTRY & MOLECULAR BIOLOGY;CHEMISTRY, APPLIED;POLYMER SCIENCE | 2024 | 8.5 | 5.9 | 3.72 | 2025-04-16 | 21 | 23 | Hydrogels; Alginate dressing; Wound healing | IN-VITRO; HYDROGEL DRESSINGS; ALGINATE HYDROGEL; HYDROFIBER; FILMS; NANOPARTICLES; PERFORMANCE; MANAGEMENT; MEMBRANES; EFFICACY | Alginate dressing; Hydrogels; Wound healing | Alginates; Bandages; Burns; Humans; Occlusive Dressings; Wound Healing; Moisture; polypeptide; polysaccharide; alginic acid; %moisture; Alginate dressing; Classifieds; Fibre composite materials; Human skin; It supports; Recent progress; Transparent films; Wound dressings; Wound healing; absorption; human; moisture; Review; wound; wound healing; burn; Hydrogels | English | 2024 | 2024-01 | 10.1016/j.ijbiomac.2023.128499 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Regression of Likelihood Probability for Time-Varying MIMO Systems with One-Bit ADCs | This study proposes a regression-based approach for calculating the likelihood probability in time-varying multi-input multi-output (MIMO) systems using one-bit analog-to-digital converters. These time-varying MIMO systems often face performance challenges because of the difficulty in tracking changes in the likelihood probability. To address this challenge, the proposed method leverages channel statistics and decoded outputs to refine the likelihood. An optimization problem is then formulated to minimize the mean-squared error between the true and refined likelihood probabilities. A linear regression approach is derived to solve this problem, and a regularization technique is applied to further optimize the calculation. The simulation results indicate that the proposed method improves reliability by effectively tracking temporal variations in the likelihood probability and outperforms conventional methods in terms of performance. | Kim, Tae-Kyoung; Min, Moonsik | Gachon Univ, Dept Elect Engn, Seongnam 13120, South Korea; Kyungpook Natl Univ, Sch Elect & Elect Engn, Daegu 41566, South Korea | 57216708769; 55386299100 | tkkim@gachon.ac.kr;msmin@knu.ac.kr; | MATHEMATICS | MATHEMATICS-BASEL | 2227-7390 | 12 | 24 | SCIE | MATHEMATICS | 2024 | 2.2 | 5.9 | 0 | 2025-05-07 | 0 | 0 | time-varying channels; quantized MIMO; likelihood probability; linear regression; 94-10 | MILLIMETER-WAVE COMMUNICATIONS; MASSIVE MIMO; CHANNEL ESTIMATION; DISTRIBUTED RECEPTION; WIRELESS SYSTEMS; ACHIEVABLE RATE; COMMUNICATION; NETWORKS; DETECTOR; RECEIVER | likelihood probability; linear regression; quantized MIMO; time-varying channels | English | 2024 | 2024-12 | 10.3390/math12243957 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||||
| ○ | ○ | Article | Respiratory Motion Prediction with Empirical Mode Decomposition-Based Random Vector Functional Link | The precise prediction of tumor motion for radiotherapy has proven challenging due to the non-stationary nature of respiration-induced motion, frequently accompanied by unpredictable irregularities. Despite the availability of numerous prediction methods for respiratory motion prediction, the prediction errors they generate often suffer from large prediction horizons, intra-trace variabilities, and irregularities. To overcome these challenges, we have employed a hybrid method, which combines empirical mode decomposition (EMD) and random vector functional link (RVFL), referred to as EMD-RVFL. In the initial stage, EMD is used to decompose respiratory motion into interpretable intrinsic mode functions (IMFs) and residue. Subsequently, the RVFL network is trained for each obtained IMF and residue. Finally, the prediction results of all the IMFs and residue are summed up to obtain the final predicted output. We validated this proposed method on the benchmark datasets of 304 respiratory motion traces obtained from 31 patients for various prediction lengths, which are equivalent to the latencies of radiotherapy systems. In direct comparison with existing prediction techniques, our hybrid architecture consistently delivers a robust and highly accurate prediction performance. This proof-of-concept study indicates that the proposed approach is feasible and has the potential to improve the accuracy and effectiveness of radiotherapy treatment. | Rasheed, Asad; Veluvolu, Kalyana C. | Kyungpook Natl Univ, Sch Elect & Elect Engn, Daegu 41566, South Korea; Kyungpook Natl Univ, Sch Elect Engn, Daegu 41566, South Korea | Veluvolu, Kalyana/C-6366-2011; Veluvolu, Kalyana Chakravarthy/C-6366-2011 | 57225336324; 8703318200 | asad.rasheed@knu.ac.kr;veluvolu@ee.knu.ac.kr; | MATHEMATICS | MATHEMATICS-BASEL | 2227-7390 | 12 | 4 | SCIE | MATHEMATICS | 2024 | 2.2 | 5.9 | 2.26 | 2025-05-07 | 5 | 5 | radiotherapy; respiratory motion; prediction; empirical mode decomposition (EMD); random vector functional link (RVFL) | REAL-TIME PREDICTION; TRACKING SYSTEM; TUMOR MOTION; APPROXIMATION; COMPENSATION; OPTIMIZATION | empirical mode decomposition (EMD); prediction; radiotherapy; random vector functional link (RVFL); respiratory motion | English | 2024 | 2024-02 | 10.3390/math12040588 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Retinex Jointed Multiscale CLAHE Model for HDR Image Tone Compression | Tone-mapping algorithms aim to compress a wide dynamic range image into a narrower dynamic range image suitable for display on imaging devices. A representative tone-mapping algorithm, Retinex theory, reflects color constancy based on the human visual system and performs dynamic range compression. However, it may induce halo artifacts in some areas or degrade chroma and detail. Thus, this paper proposes a Retinex jointed multiscale contrast limited adaptive histogram equalization method. The proposed algorithm reduces localized halo artifacts and detail loss while maintaining the tone-compression effect via high-scale Retinex processing. A performance comparison of the experimental results between the proposed and existing methods confirms that the proposed method effectively reduces the existing problems and displays better image quality. | Kim, Yu-Joong; Son, Dong-Min; Lee, Sung-Hak | Kyungpook Natl Univ, Sch Elect & Elect Engn, 80 Daehak Ro, Daegu 41566, South Korea | ; Son, Dong-Min/LZH-4025-2025 | 59141931000; 57216612214; 7601395661 | kuj1026@knu.ac.kr;forhollow@knu.ac.kr;shak2@ee.knu.ac.kr; | MATHEMATICS | MATHEMATICS-BASEL | 2227-7390 | 12 | 10 | SCIE | MATHEMATICS | 2024 | 2.2 | 5.9 | 2.26 | 2025-05-07 | 3 | 4 | tone compression; multiscale Retinex (MSR); contrast limited adaptive histogram equalization (CLAHE) | QUALITY ASSESSMENT; PERFORMANCE | contrast limited adaptive histogram equalization (CLAHE); multiscale Retinex (MSR); tone compression | English | 2024 | 2024-05 | 10.3390/math12101541 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Robust Transceiver Design for Correlated MIMO Interference Channels in the Presence of CSI Errors under General Power Constraints | In this paper, we consider a new design problem of optimizing a linear transceiver for correlated multiple-input multiple-output (MIMO) interference channels in the presence of channel state information (CSI) errors, which is a more realistic and practical scenario than those considered in the previous studies on uncorrelated MIMO interference channels. By taking CSI errors into account, the optimization problem is initially formulated to minimize the average mean square error (MSE) under the general power constraints. Since the objective function is not jointly convex in precoders and receive filters, we split the original problem into two convex subproblems, and then linear precoders and receive filters are obtained by solving two subproblems iteratively. It is shown that the proposed algorithm is guaranteed to converge to a local minimum. The numerical results show that the proposed algorithm can significantly reduce the sensitivity to CSI errors compared with the existing robust schemes in the correlated MIMO interference channel. | Kang, Jae-Mo; Lim, Dong-Woo | Kyungpook Natl Univ, Dept Artificial Intelligence, Daegu 41566, South Korea; Changwon Natl Univ, Dept Informat & Commun Engn, Chang Won 51140, South Korea | Lim, Darren Wan-Teck/V-8435-2019 | 56024930400; 55694295300 | jmkang@knu.ac.kr;dwlim@changwon.ac.kr; | MATHEMATICS | MATHEMATICS-BASEL | 2227-7390 | 12 | 6 | SCIE | MATHEMATICS | 2024 | 2.2 | 5.9 | 0 | 2025-05-07 | 0 | 0 | interference channel; MIMO; stochastic robustness; MSE minimization; CSI errors; general power constraints | ALIGNMENT; SYSTEMS | CSI errors; general power constraints; interference channel; MIMO; MSE minimization; stochastic robustness | English | 2024 | 2024-03 | 10.3390/math12060801 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Structure-based functional analysis of a novel NADPH-producing glyceraldehyde-3-phosphate dehydrogenase from Corynebacterium glutamicum | Corynebacterium glutamicum is an industrial workhorse applied in the production of valuable biochemicals. In the process of bio-based chemical production, improving cofactor recycling and mitigating cofactor imbalance are considered major solutions for enhancing the production yield and efficiency. Although, glyceraldehyde-3-phosphate dehydrogenase (GapDH), a glycolytic enzyme, can be a promising candidate for a sufficient NADPH cofactor supply, however, most microorganisms have only NAD-dependent GapDHs. In this study, we performed functional characterization and structure determination of novel NADPH-producing GapDH from C. glutamicum (CgGapX). Based on the crystal structure of CgGapX in complex with NADP cofactor, the unique structural features of CgGapX for NADP stabilization were elucidated. Also, N-terminal additional region (Auxiliary domain, AD) appears to have an effect on enzyme stabilization. In addition, through structure-guided enzyme engineering, we developed a CgGapX variant that exhibited 4.3-fold higher kcat, and 1.2-fold higher kcat/ KM values when compared with wild-type. Furthermore, a bioinformatic analysis of 100 GapX-like enzymes from 97 microorganisms in the KEGG database revealed that the GapX-like enzymes possess a variety of AD, which seem to determine enzyme stability. Our findings are expected to provide valuable information for supplying NADPH cofactor pools in bio-based value-added chemical production. | Son, Hyeoncheol Francis; Park, Woojin; Kim, Sangwoo; Kim, Il-Kwon; Kim, Kyung-Jin | Korea Inst Sci & Technol, Clean Energy Res Ctr, Seoul 02792, South Korea; Kyungpook Natl Univ, Sch Life Sci, BK21 FOUR KNU Creat BioRes Grp, Daegu 41566, South Korea; Kyungpook Natl Univ, KNU Inst Microorganisms, Daegu 41566, South Korea; Kyungpook Natl Univ, KNU Inst Microorganisms, Sch Life Sci, BK21 FOUR KNU Creat Biores Grp, Daegu, South Korea | Kim, Kyung-Jin/MVY-3405-2025 | 56015598000; 57211680374; 59237076700; 56547774100; 55510867400 | kkim@knu.ac.kr; | INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES | INT J BIOL MACROMOL | 0141-8130 | 1879-0003 | 255 | SCIE | BIOCHEMISTRY & MOLECULAR BIOLOGY;CHEMISTRY, APPLIED;POLYMER SCIENCE | 2024 | 8.5 | 5.9 | 0.39 | 2025-04-16 | 2 | 2 | Corynebacterium glutamicum; Unique cofactor selectivity; Glyceraldehyde-3-phosphate dehydrogenase; NADPH supplying | ESCHERICHIA-COLI; LYSINE PRODUCTION; CRYSTAL-STRUCTURE; GENE-CLUSTER; EXPRESSION; SEQUENCE; PURIFICATION; PATHWAY; IDENTIFICATION; METABOLISM | Corynebacterium glutamicum; Glyceraldehyde-3-phosphate dehydrogenase; NADPH supplying; Unique cofactor selectivity | Corynebacterium glutamicum; Glyceraldehyde-3-Phosphate Dehydrogenases; Glycolysis; NADP; Crystal structure; Enzymes; Stabilization; glyceraldehyde 3 phosphate dehydrogenase; nicotinamide adenine dinucleotide phosphate; reduced nicotinamide adenine dinucleotide phosphate; glyceraldehyde 3 phosphate dehydrogenase; nicotinamide adenine dinucleotide phosphate; Bio-based chemicals; Chemical production; Co-factor recycling; Cofactors; Corynebacterium glutamicum; Glyceraldehyde-3-phosphate dehydrogenase; High- k; NADPH supplying; Structure-based; Unique cofactor selectivity; amino terminal sequence; Article; auxiliary domain; bioinformatics; comparative study; controlled study; Corynebacterium glutamicum; crystal structure; enzyme activity; enzyme analysis; enzyme binding; enzyme engineering; enzyme kinetics; enzyme stability; enzyme structure; enzyme substrate complex; information processing; KEGG; molecular docking; nonhuman; phylogenetic tree; protein domain; statistical analysis; structure analysis; wild type; genetics; glycolysis; metabolism; Microorganisms | English | 2024 | 2024-01 | 10.1016/j.ijbiomac.2023.128103 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Sustained release of stem cell secretome from nano-villi chitosan microspheres for effective treatment of atopic dermatitis | Canine atopic dermatitis (AD) arises from hypersensitive immune reactions. AD symptoms entail severe pruritus and skin inflammation, with frequent relapses. Consequently, AD patients require continuous management, imposing financial burdens and mental fatigue on pet owners. In this study, we aimed to investigate the therapeutic relevance of secretome from canine adipose tissue-derived mesenchymal stem cells (MSCs), especially after encapsulation in nano-villi chitosan microspheres (CS-MS) to expect improved efficacy. Conditioned media (CM) from MSCs significantly inhibited the proliferation of splenocytes, induced the generation of regulatory T cells, and decreased mast cell degranulation. We found that beneficial soluble factors known to reduce AD symptoms, including transforming growth factor-beta 1, were detectable after sequential concentration and lyophilization of CM. The CS-MS, developed by a phase inversion regeneration method, showed high loading and sustained release of the secretome. Local injection of secretome-loaded CS-MS (ST/SC-MS) effectively reduced clinical severity compared to groups treated with secretome. Histological analysis revealed that ST/SC-MS potently suppressed epidermal hyperplasia, immunocyte infiltration and mast cell activation in the lesion. Taken together, this study presents a novel therapeutic approach exhibiting more potent and prolonged immunoregulatory efficacy of MSC secretome for canine AD treatment. | Oh, Su-Jeong; Nguyen, Tiep Tien; Seo, Yoojin; Park, Hee-Jeong; Ahn, Ji-Su; Shin, Ye Young; Kang, Byung-Jae; Jang, Min; Park, Junhyeung; Jeong, Jee-Heon; Kim, Hyung-Sik | Pusan Natl Univ, Dent & Life Sci Inst, Dept Oral Biochem, Yangsan 50612, South Korea; Pusan Natl Univ, Sch Dent, Dept Life Sci Dent, Yangsan 50612, South Korea; Pusan Natl Univ, Educ & Res Team Life Sci Dent, Yangsan 50612, South Korea; Keimyung Univ, Coll Pharm, Daegu 42601, South Korea; Sungkyunkwan Univ, Sch Med, Dept Precis Med, Suwon 16419, South Korea; Seoul Natl Univ, Coll Vet Med, Dept Vet Clin Sci, Seoul 08826, South Korea; Seoul Natl Univ, Res Inst Vet Sci, Seoul 08826, South Korea; Seoul Natl Univ, BK21 FOUR Future Vet Med Leading Educ & Res Ctr, Seoul 08826, South Korea; Kyungpook Natl Univ, Coll Vet Med, Dept Vet Surg, Daegu 41566, South Korea; Kangstem Biotech Co Ltd, Stem Cell & Regenerat Bioengn Inst, Global R&D Ctr, Seoul 08590, South Korea | NGUYEN, TIEP/AAY-3116-2021; Park, Mi/GRO-0133-2022; Ahn, Ji-Su/AAI-8305-2020; Jeong, Jee-Heon/AAC-9866-2020; Kim, Hyung/AAN-7621-2021 | 57211591323; 57207160866; 51665799300; 59252956900; 57210864325; 57193927438; 26644180000; 59510648800; 57855506300; 49961493800; 57216067585 | jeeheon@skku.edu;hskimcell@pusan.ac.kr; | INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES | INT J BIOL MACROMOL | 0141-8130 | 1879-0003 | 277 | SCIE | BIOCHEMISTRY & MOLECULAR BIOLOGY;CHEMISTRY, APPLIED;POLYMER SCIENCE | 2024 | 8.5 | 5.9 | 0 | 2025-05-07 | 0 | 0 | Canine adipose stem cell; Secretome; Chitosan microspheres; Atopic dermatitis | CLIENT-OWNED DOGS; CLINICAL-TRIAL; TASK-FORCE; CYCLOSPORINE; DELIVERY; EFFICACY; EXOSOMES; DISEASE | Atopic dermatitis; Canine adipose stem cell; Chitosan microspheres; Secretome | Animals; Cell Proliferation; Chitosan; Culture Media, Conditioned; Delayed-Action Preparations; Dermatitis, Atopic; Dogs; Mast Cells; Mesenchymal Stem Cells; Microspheres; Secretome; Activation analysis; Cell culture; Chitosan; Flowcharting; Microspheres; beta n acetylhexosaminidase; carboxyfluorescein diacetate succinimidyl ester; CD28 antigen; CD3 antigen; CD34 antigen; chitosan nanoparticle; Fc receptor IIa; glyceraldehyde 3 phosphate dehydrogenase; Hermes antigen; immunoglobulin E; immunoglobulin G3; interleukin 13; interleukin 4; interleukin 5; leukemia inhibitory factor; microsphere; nano villi chitosan microsphere; receptor type tyrosine protein phosphatase C; scatter factor receptor; stem cell factor; stem cell factor receptor; Thy 1 membrane glycoprotein; transcription factor FOXP3; transforming growth factor beta; transforming growth factor beta1; unclassified drug; chitosan; Adipose stem cells; Atopic dermatitis; Canine adipose stem cell; Chitosan microspheres; Conditioned medium; Mast cells; Mesenchymal stem cell; Secretome; Stem-cell; Sustained release; abdominal fat; adipose tissue derived mesenchymal stem cell; adult; animal cell; animal experiment; animal model; animal tissue; Article; atopic dermatitis; CD4 lymphocyte count; cell differentiation; cell infiltration; cell proliferation; cell suspension; centrifugation; controlled study; cumulative population doubling level; cytoplasm; dendritic cell; disease severity assessment; drug delivery system; drug efficacy; epidermis hyperplasia; epithermal thickness; female; flow cytometry; fluorescence; freeze drying; histology; human; human cell; immunocytochemistry; incubation time; mast cell degranulation; microsphere fabrication; mouse; nanoencapsulation; nonhuman; phase inversion regeneration method; protein concentration; protein retention test; regulatory T lymphocyte; reproducibility; RNA extraction; secretome; spleen cell; static electricity; stem cell; sustained release preparation; Th1 Th2 balance; trypsinization; animal; atopic dermatitis; chemistry; conditioned medium; cytology; delayed release formulation; dog; drug effect; drug therapy; immunology; mast cell; mesenchymal stem cell; metabolism; pathology; pharmacology; therapy; Stem cells | English | 2024 | 2024-10 | 10.1016/j.ijbiomac.2024.134344 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Temperature- and pH-induced dual-crosslinked methylcellulose/ chitosan-gallol conjugate composite hydrogels with improved mechanical, tissue adhesive, and hemostatic properties | Gauze or bandages are commonly used to effectively control bleeding during trauma and surgery. However, conventional treatment methods can sometimes lead to secondary damages. In recent years, there has been increased interest in developing adhesive hemostatic hydrogels as a safer alternative for achieving hemostasis. Methylcellulose (MC) is a well-known thermo-sensitive polymer with excellent biocompatibility that is capable of forming a hydrogel through physical crosslinking owing to its inherent thermo-reversible properties. However, the poor mechanical properties of the MC hydrogel comprising a single crosslinked network (SN) limit its application as a hemostatic material. To address this issue, we incorporated a chitosan-gallol (CS-GA) conjugate, which has the ability to form chemical crosslinks through self-crosslinking reactions under specific pH conditions, into the MC hydrogel to reinforce the MC hydrogel network. The resulting MC/CS-GA hydrogel with a dual-crosslinked network (DN), involving both physical and chemical crosslinks, exhibited synergistic effects of the two types of crosslinks. Thus, compared with those of the SN hydrogel, the composite DN hydrogel exhibited significantly enhanced mechanical strength and tissue adhesive properties. Moreover, the DN hydrogel presented excellent biological activity in vitro. . Additionally, in rat hepatic hemorrhage models, the DN hydrogel exhibited high hemostatic efficiency, showcasing its multifunctional capabilities. | Hwang, Sun Min; Kim, Eunu; Wu, Jingxian; Kim, Min Hee; Lee, Haeshin; Park, Won Ho | Chungnam Natl Univ, Dept Organ Mat Engn, Daejeon 34134, South Korea; Korea Adv Inst Sci & Technol KAIST, Dept Chem, Daejeon 34141, South Korea; Kyungpook Natl Univ, Dept Text Engn, Sangju 37224, South Korea | Kim, Soon Hee/GXF-6736-2022 | 57607818600; 57215933977; 57406390500; 57188948163; 11640444500; 57211114215 | haeshin@kaist.ac.kr;parkwh@cnu.ac.kr; | INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES | INT J BIOL MACROMOL | 0141-8130 | 1879-0003 | 277 | SCIE | BIOCHEMISTRY & MOLECULAR BIOLOGY;CHEMISTRY, APPLIED;POLYMER SCIENCE | 2024 | 8.5 | 5.9 | 1.75 | 2025-05-07 | 6 | 6 | Dual-crosslinked hydrogel; Chitosan-gallol conjugate; Tissue adhesive hemostasis | NETWORK HYDROGELS; ACID | Chitosan-gallol conjugate; Dual-crosslinked hydrogel; Tissue adhesive hemostasis | Animals; Chitosan; Cross-Linking Reagents; Hemorrhage; Hemostatics; Humans; Hydrogels; Hydrogen-Ion Concentration; Male; Methylcellulose; Rats; Rats, Sprague-Dawley; Temperature; Tissue Adhesives; Adhesives; Bioactivity; Biocompatibility; Biomechanics; Crosslinking; Hydrogels; chitosan; Chitosan-gallol conjugate; collagen; dual crosslinked hydrogel; graphene; graphene oxide; hydrogel; methylcellulose; pyrogallol; Schiff base; tissue adhesive; unclassified drug; chitosan; cross linking reagent; hemostatic agent; hydrogel; methylcellulose; tissue adhesive; Chitosan-gallol conjugate; Cross-linked hydrogels; Crosslinked networks; Dual-crosslinked hydrogel; Haemostasis; Mechanical; Methylcellulose; Methylcellulose hydrogel; Tissue adhesive hemostasis; Tissue adhesives; alcohol liver cirrhosis; animal cell; animal experiment; Article; biocompatibility; bleeding; blood flow; cell viability; chemical interaction; compressive strength; controlled study; cross linking; energy dispersive X ray spectroscopy; field emission scanning electron microscopy; hemolysis assay; hemostasis; hydrogen bond; in vitro study; infrared spectroscopy; minimally invasive surgery; mouse; NCTC clone 929 cell line; nonhuman; pH; proton nuclear magnetic resonance; scanning electron microscopy; temperature; Tissue adhesive hemostasis; tissue engineering; tissue regeneration; ultraviolet visible spectrophotometry; viscosity; X ray diffraction; animal; chemistry; drug therapy; human; male; pH; rat; Sprague Dawley rat; Chitosan | English | 2024 | 2024-10 | 10.1016/j.ijbiomac.2024.134098 | 바로가기 | 바로가기 | 바로가기 | 바로가기 |
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