Showing 8,441 - 8,460 results of 8,685 for search 'a systematic optimization', query time: 0.24s Refine Results
  1. 8441

    Automated detection of diabetic retinopathy lesions in ultra-widefield fundus images using an attention-augmented YOLOv8 framework by Lei-Si Hu, Jie Wang, Heng-Ming Zhang, Hai-Yu Huang

    Published 2025-07-01
    “…The performances of the three models—YOLOv8, YOLOv8+ convEMA, and YOLOv8+ convSimAM—were systematically compared.ResultsA comparative analysis of the three models revealed that the original YOLOv8 model suffers from missed detection issues, achieving a precision of 0.815 for hemorrhage spot detection. …”
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  2. 8442

    Risk coupling analysis of underground gas storage leakage accidents based on dynamic Bayesian network and N-K model by Yao Hu, Zhilong Ding, Liguang Qiao, Feng Gu, Mengqi Yang

    Published 2025-07-01
    “…First, the causes of leakage accidents are systematically investigated, and risk categories are identified. …”
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  3. 8443

    Ultra-Low Dielectric Constant Ca<sub>3</sub>(BO<sub>3</sub>)<sub>2</sub> Microwave Ceramics and Their Performance Simulation in 5G Microstrip Patch Antennas by Fangyuan Liu, Fuzhou Song, Wanghuai Zhu, Zhengpu Zhang, Zhonghua Yao, Hanxing Liu, Huaao Sun, Guangran Lin, Yue Xu, Lingcui Zhang, Yan Shen, Jinbo Zhao, Zeming Qi, Feng Shi, Jinghui Li

    Published 2025-06-01
    “…The sample under 800 MPa exhibits optimal dielectric performance, with a dielectric constant (<i>ε<sub>r</sub></i>) of 5.95, a quality factor (<i>Q</i> × <i>f</i>) of 11,836 GHz, and a temperature coefficient of resonant frequency (<i>τ<sub>f</sub></i>) of −39.89 ppm/°C. …”
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  4. 8444

    Zingiberaceae in Roi Et Province, Thailand: Diversity, Ethnobotany, Horticultural Value, and Conservation Status by Piyaporn Saensouk, Surapon Saensouk, Thawatphong Boonma, Auemporn Junsongduang, Sarayut Rakarcha, Khamfa Chanthavongsa, Tammanoon Jitpromma

    Published 2025-05-01
    “…Zingiberaceae is a diverse and culturally significant plant family across tropical Asia, yet in Roi Et Province, Thailand, it has remained poorly documented. …”
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  5. 8445

    Health-related preferences of older patients with multimorbidity: the protocol for an evidence map by Marjan Van Den Akker, Odette Wegwarth, Joerg J Meerpohl, Sharon E Straus, Tammy Hoffmann, Ferdinand M Gerlach, Christine Schmucker, Ana Isabel González-González, Christiane Muth

    Published 2019-09-01
    “…Introduction Interaction of conditions and treatments, complicated care needs and substantial treatment burden make patient–physician encounters involving multimorbid older patients highly complex. To optimally integrate patients’ preferences, define and prioritise realistic treatment goals and individualise care, a patient-centred approach is recommended. …”
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  6. 8446

    Strategy for Sustainable Bio‐Value Chain Development: Algal Biomass Utilization Without Inhibitory Effects on Lactic Acid Production via Efficient Diluted Acid Hydrolysis of Brown... by Jihyun Bae, Jeongho Lee, Hyeok Ki Kwon, Giwon Lee, Taek Lee, Hyun Gyu Lim, Sang Woo Seo, Gyoo Yeol Jung, Hah Young Yoo, Chulhwan Park

    Published 2025-05-01
    “…ABSTRACT Saccharina japonica, one of the most widely cultivated brown algae species, is considered a promising biorefinery feedstock due to its high carbohydrate content. …”
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  7. 8447

    Parameterised analysis of blade profiles within electric submersible pump for enhancing energy conversion efficiency by Hui Wang, Yang Yang, Qingchen Che, Jinghe Hou, Dunwei Liu, Leilei Ji, Ling Zhou, Hui Li, Zhaoming He

    Published 2025-12-01
    “…By adjusting control parameters within the Bézier curve framework, a variety of blade geometries can be systematically generated and analysed. …”
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  8. 8448

    Construction and Application of Carbon Emissions Estimation Model for China Based on Gradient Boosting Algorithm by Dongjie Guan, Yitong Shi, Lilei Zhou, Xusen Zhu, Demei Zhao, Guochuan Peng, Xiujuan He

    Published 2025-07-01
    “…Key variables were selected through correlation analysis, missing values were interpolated using K-means clustering, and model parameters were systematically optimized via grid search and cross-validation. …”
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  9. 8449

    Behavior of unconfined steel-fiber reinforced UHPC post high-temperature exposure by Sohit Agrawal, Erika Yulianti, Mugahed Amran, Chung-Chan Hung

    Published 2025-07-01
    “…Although compressive strength continued to rise, peaking at 300 ˚C, tensile properties only showed optimal performance up to 200 ˚C before declining, demonstrating a differential impact of temperature on UHPC’s mechanical behavior. …”
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    Article
  10. 8450

    Screening of qPCR Reference Genes in Quinoa Under Cold, Heat, and Drought Gradient Stress by Qiuwei Lu, Xueying Wang, Suxuan Dong, Jinghan Fu, Yiqing Lin, Ying Zhang, Bo Zhao, Fuye Guo

    Published 2025-08-01
    “…Quinoa (<i>Chenopodium quinoa</i>), a stress-tolerant pseudocereal ideal for studying abiotic stress responses, was used to systematically identify optimal reference genes for qPCR normalization under gradient stresses: low temperatures (LT group: −2 °C to −10 °C), heat (HT group: 39° C to 45 °C), and drought (DR group: 7 to 13 days). …”
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  11. 8451

    Reaction Rate Rules of Intramolecular H-Migration Reaction Class for R<sup>I</sup>OR<sup>II</sup>OO·Radicals in Ether Combustion by Xiaohui Sun, Zerong Li

    Published 2024-09-01
    “…The intramolecular H-migration reaction of R<sup>I</sup>OR<sup>II</sup>OO· radicals constitute a key class of reactions in the low-temperature combustion mechanism of ethers. …”
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  12. 8452

    Duration of onset, body temperature and C-reactive protein can be used to predict the results of pus culture in children with acute osteomyelitis of long bones by Haiting Jia, Yanan Liu, Tao Liu

    Published 2024-11-01
    “…The aim of our study is to identify some indicators that could be used to distinguish the culture results to optimize the use of PCR and mNGS. Methods In this study, a total of 117 cases of acute osteomyelitis of long bones in children who underwent pus culture were included. …”
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  13. 8453

    ASSESSMENT OF THE POTENTIAL OF UKRAINE’S ECONOMY IN THE SPHERE OF INCLUSIVE DEVELOPMENT by Alina Yu. Zhukovska, Oleksandr V. Dluhopolskyi, Tetiana L. Zheliuk, Oleksandr V. Brechko

    Published 2025-07-01
    “…This study aims to analyze the structural components of the national economy’s potential for inclusive development, formulate a methodology for its assessment, apply this methodology to the case of Ukraine, and propose strategies for the optimal utilization of Ukraine’s existing potential in the sphere of inclusive development. …”
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  14. 8454

    Foreign Experience in Harmonizing Legislation in the Field of Organic Production and the Possibilities for its Adaptation for Ukraine by Lohosha Roman V.

    Published 2025-06-01
    “…The article conducts a comprehensive study of foreign experience in the harmonization of legislation in the field of organic production to determine optimal models and approaches that can be adapted in Ukraine. …”
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    Article
  15. 8455

    Research progress and challenges in thermal maturity evalution of Lower Paleozoic source rocks by Xiaowei ZHENG, Fujie JIANG, Yu ZHANG, Jingqi ZHOU

    Published 2025-05-01
    “…The lack of vitrinite in these strata has made thermal maturity evaluation a persistent technical challenge in deep hydrocarbon exploration. …”
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  16. 8456

    Frequent drought and flood events in the Yellow River Basin, increasing future drought trends in the middle and upper reaches by Jianming Feng, Tianling Qin, Xizhi Lv, Shanshan Liu, Jie Wen, Juan Chen

    Published 2025-05-01
    “…From 1956 to 2020, the basin’s drought index increased at a rate of 0.003–0.025 per decade, while the flood index changed at a rate of −0.006–0.039 per decade. …”
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  17. 8457

    Discussion on development trends and utilization efficiency enhancement of LNG terminals in China by Yi WU, Ran LI, Dandi ZHANG

    Published 2024-07-01
    “…Conclusion This paper concludes with recommendations for the development of LNG terminals in China, which include: (1) meeting supply guarantee obligations, and systematically opening terminals; (2) accelerating infrastructure development, expediting mutual guarantee, mutual supply, and interconnection construction, and ensuring stable consumption under long-term agreements; (3) innovating international trade approaches, optimizing preferential tariff policies, and consistently enhancing terminal utilization efficiency.…”
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  18. 8458

    Efficient separation of emulsified oily wastewater using chitosan-based hydrophobic magnetic flocculant by Yongzhi Liu, Dou Wang, Qun Wang, Cheng Li, Jian Song, Huili Fang

    Published 2025-04-01
    “…This process was specifically conducted in an ammonia-catalyzed ethanol/water co-solvent system maintained at pH 10.5, where the reaction conditions were systematically optimized to 25°C, 350 rpm stirring speed, and 5-hour duration, ultimately enhancing the composite's mechanical strength and resistance to both acidic and alkaline environments. …”
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  19. 8459

    Risks and Regulations for Application of the LLaMA Model in University Future Learning Centers by QIAO Jinhua, MA Xueyun

    Published 2025-02-01
    “…By systematically examining these potential risks, the study aims to establish a well-rounded perspective on the implications of AI deployment in educational settings. …”
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  20. 8460

    Axial Performances of CFRP-PVC Confined RAC Columns: Experimental and Numerical Study by Zidong Hu, Ruoyu Cao, Qiaoyun Wu, Cheng Zhao, Jie Li, Xuyong Chen

    Published 2025-06-01
    “…To address this research gap, this study investigates the axial compressive behavior of CFRP–PVC–RAC columns by varying CFRP strip width (from 25 to 75 mm), strip spacing (from 31 to 77.5 mm), and the number of CFRP layers (one to nine) over a central PVC tube. Axial compression tests reveal that specimens with a central CFRP strip width equal to or greater than 75 mm achieve peak loads up to 1331 kN and that, after rupture of the central strip, the remaining strips continue to carry load, producing a more gradual stress–strain decline and enhanced ductility compared to fully wrapped controls (peak load 1219 kN). …”
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