Showing 25,261 - 25,280 results of 29,984 for search '"optimization"', query time: 0.12s Refine Results
  1. 25261

    Research on strong robustness watermarking algorithm based on dynamic difference expansion by Tianqi WANG, Yingzhou ZHANG, Yunlong DI, Dingwen LI, Linlin ZHU

    Published 2023-10-01
    “…A surge in the amount of information comes with the rapid development of the technology industry.Across all industries, there is a need to collect and utilize vast amounts of data.While this big data holds immense value, it also poses unprecedented challenges to the field of data security.As relational databases serve as a fundamental storage medium for data, they often contain large-scale data rich in content and privacy.In the event of a data leak, significant losses may occur, highlighting the pressing need to safeguard database ownership and verify data ownership.However, existing database watermarking technologies face an inherent tradeoff between improving watermark embedding capacity and reducing data distortion.To address this issue and enhance watermark robustness, a novel robust database watermarking algorithm based on dynamic difference expansion was introduced.The QR code was employed as the watermark, the SVD decomposition of the low frequency part of the image was utilized after Haar wavelet transform.By extracting specific feature values and using residual feature values as the watermark sequence, it was ensured that the same-length watermark sequence contains more information and the embedded watermark length can be reduced.Furthermore, by combining the adaptive differential evolution algorithm and the minimum difference algorithm, the optimal embedding attribute bits were selected to alleviate the problems of low computational efficiency, high data distortion and poor robustness of traditional difference expansion techniques in embedding watermarks, and to improve the embedding capacity of watermarks while reducing the distortion of data.Experimental results demonstrate that the proposed algorithm achieves a high watermark embedding rate with low data distortion.It is resilient against multiple attacks, exhibiting excellent robustness and strong traceability.Compared to existing algorithms, it offers distinct advantages and holds great potential for broad application in the field of data security.…”
    Get full text
    Article
  2. 25262

    The preparation of magnesium ferrous sulfate from pre-oxidized acid mine drainage by TAN Dongdong, NIE Guanghua, DENG Qiang

    Published 2025-01-01
    “…The results showed that the retention rate of nanofiltration for all metal ions reached over 93%, and the retention rate for iron and magnesium reached 98%. The optimal Fe3+ reduction effect occurred at pH of 1.0, temperature of 35 ℃, and reaction time of 40 minutes. …”
    Get full text
    Article
  3. 25263

    DIGITAL FILTERS IMPLEMENTATION IN MICROPROCESSOR-BASED RELAY PROTECTION by Yu. V. Rumiantsev, F. A. Romaniuk, V. Yu. Rumiantsev, I. V. Novash

    Published 2016-09-01
    “…The increasing of the signal magnitude settling time in this case can be reduced by choosing the most optimal parameters of the all components of the current measuring element.…”
    Get full text
    Article
  4. 25264

    Results of work of the maternal child program. University Pediatric Hospital of Cienfuegos, 2021 by Lairi García Ríos, Fernando de la Mora Martín, Milenys Acosta Fonseca, Antonio Masot Rangel, Claudia Beatríz Surí García

    Published 2022-07-01
    “…<br /><strong>Conclusions:</strong> The group of the institution continues to develop clinical management to achieve the quality of optimal hospital services to influence, modify and make sustainable the indicators with unfavorable results.…”
    Get full text
    Article
  5. 25265

    THE EFFECT OF BOOKLET MEDIA HEALTH EDUCATION ON MOTHERS’ KNOWLEDGE ABOUT PICKY EATERS OF PRESCHOOL CHILDREN by Ajeng Salsabila Putri Kirana, Dadang Kusbiantoro, Harnina Samantha Aisyah

    Published 2024-10-01
    “…Carrying out health education using booklet media will help receive information about picky eaters more optimally. This research aims to analyze the effect of booklet media health education on mothers' knowledge about picky eaters in preschool children. …”
    Get full text
    Article
  6. 25266

    Comparative Effectiveness of Modified Manual and Powered Toothbrushing Interventions in Individuals with Disabilities: A Randomized Controlled Trial Assessing Gingival Health by Abhishek Sinha, Sumit Kumar, Vinod Sargaiyan, Ruby H. Kottapalli, Dheeraj Sharma, Ankit Goyal

    Published 2024-12-01
    “…Background: Individuals with disabilities face unique challenges in maintaining optimal oral health due to physical, cognitive, and sensory impairments. …”
    Get full text
    Article
  7. 25267

    Time series segmentation for recognition of epileptiform patterns recorded via microelectrode arrays in vitro. by Gabriel Galeote-Checa, Gabriella Panuccio, Angel Canal-Alonso, Bernabe Linares-Barranco, Teresa Serrano-Gotarredona

    Published 2025-01-01
    “…To achieve effective seizure control, algorithms play an important role in identifying relevant electrographic biomarkers from local field potentials (LFPs) to determine the optimal stimulation timing. In this regard, the detection and classification of events from ongoing brain activity, while achieving low power consumption through computationally inexpensive implementations, represents a major challenge in the field. …”
    Get full text
    Article
  8. 25268

    Trends in growth and nutritional status of Korean toddlers and preschoolers: a cross-sectional study using 2010–2021 Korea National Health and Nutrition Examination Survey data by Annisa Turridha, Jae Eun Shim

    Published 2024-12-01
    “…Future research should focus on exploring dietary patterns and analyzing specific food groups that are essential for promoting optimal growth and nutritional status in children.…”
    Get full text
    Article
  9. 25269

    Distribution Design of Bottled Mineral Water ‘Airku’ with Distribution Requirement Planning Method (DRP) by Trio Yonathan Tejakusuma, Atika Khoirun Nisa, Vindy Fitriana Martanti

    Published 2023-02-01
    “…The model is designed based on lot size that have the optimal cost to determine the gross requirement total, project on hand, net requirement, planned order receipt, planed order release and distribution cost. …”
    Get full text
    Article
  10. 25270

    Investigation of kinetics, thermodynamics, and isotherms of the simultaneous removal of heavy metal ions by activated carbon from cypress fruit by Alaa M Al-Ma’abreh, Manal AlKhabbas, Samer Alawaideh, Samer Hasan Hussein-Al-Ali, Dareen A Hmedat, Gada Edris, Razan Ataallah Abuassaf, Mariam A Hamed

    Published 2024-05-01
    “…Co(II) and Cd(II) achieved their highest removal rates at a concentration of 90 mg.L −1 in basic solutions (pH 10) with 70 mg of adsorbent and 90 min of agitation time. Under these optimal conditions, AC-C demonstrates remarkable removal efficiencies of 98.68% for Pb(II), 95.60% for Co(II), and 76.45% for Cd(II). …”
    Get full text
    Article
  11. 25271

    PD_EBM: An Integrated Boosting Approach Based on Selective Features for Unveiling Parkinson's Disease Diagnosis With Global and Local Explanations by Fahmida Khanom, Mohammad Shorif Uddin, Rafid Mostafiz

    Published 2025-01-01
    “…Our boosting model employs a Decision Tree (DT) classifier with AdaBoost, followed by a linear discriminant analysis (LDA) optimizer, achieving an impressive accuracy of 99.44%, outperforming other boosting models.…”
    Get full text
    Article
  12. 25272

    High-risk factors and predictive models for hemorrhagic chronic radiation proctitis by Zhongli Liao, Xiaogang Hu, Liuling Hu, Jian Yang

    Published 2025-01-01
    “…Identifying high-risk factors, predicting its occurrence, and optimizing radiotherapy plans are key to preventing hemorrhagic CRP. …”
    Get full text
    Article
  13. 25273

    AI AS A CREATIVE PARTNER: HOW ARTIFICIAL INTELLIGENCE IMPACTS STUDENT CREATIVITY AND INNOVATION: CASE STUDY OF STUDENTS FROM LATVIA, UKRAINE AND SPAIN by Olga Verdenhofa, Remigijus Kinderis, Galina Berjozkina

    Published 2024-12-01
    “…In light of the escalating significance of AI in educational settings, this study is pivotal in elucidating the optimal integration of AI to nurture students' creative growth and fortify their confidence in the effective utilisation of AI tools. …”
    Get full text
    Article
  14. 25274

    Design and simulation of a simple greenhouse solar dryer and peltier thermoelectric module under independent and combined operating conditions by A GokulRaj, S Padma, R Mohan

    Published 2025-01-01
    “…At 40 K temperature difference the Peltier thermo electric module attained optimal performance. From the analysis using EJS tool, the maximum and average air temperatures inside the dryer were found to be 65 °C and 57 °C, the COP and cooling capacity of the Peltier thermoelectric model were high at 800 W/m ^2 solar radiation.…”
    Get full text
    Article
  15. 25275

    Fraksinasi Ekstrak Metanol Buah Parijoto (Medinilla speciosa Blume) dengan Pelarut Metanol, Etil Asetat, dan N-Heksana by Nailil Mona, Dyah Ayu Widyastuti, Atip Nurwahyunani, Fafa Nurdyansyah

    Published 2022-11-01
    “…So, the bioactive compounds of Parijoto fruit can be optimally extracted. The objective of this study is to obtain fractions of Parijoto fruit using three different solvent, methanol, ethyl acetate, and n-hexane. …”
    Get full text
    Article
  16. 25276

    Improved printed circuit board defect detection scheme by Lufeng Bai, Wen Hao Xu

    Published 2025-01-01
    “…First, we incorporate the Efficient Channel Attention Network (ECANet) attention mechanism into the backbone network of YOLOv8, which improves the performance of small-target detection by adaptively enhancing the expressiveness of key features, so that the network possesses higher sensitivity and focus on tiny details in PCB images. Second, we optimize and upgraded the neck structure. On the one hand, the $$C2f_E$$ module is introduced to facilitate cross-layer feature fusion to ensure that the rich texture information at the lower layer and the abstract semantic information at the higher layer complement each other, which is conducive to improving the contextual understanding of small target detection; on the other hand, a detection head specialized for small targets is designed and added to enhance the ability of locating and identifying tiny defects. …”
    Get full text
    Article
  17. 25277

    Maternal HIV retesting during antenatal care in selected health facilities in Mayuge district, Uganda: A cross-sectional study. by Farouq Kayiwa, Elizabeth Nabiwemba, Nelson Bunani, Rawlance Ndejjo

    Published 2025-01-01
    “…Routine HIV testing at each antenatal care (ANC) visit can reduce the likelihood of such infections. However, a sub-optimal number of women are re-tested for HIV on their subsequent ANC visits. …”
    Get full text
    Article
  18. 25278

    Measuring the Effect of Vision on the Synergy of Lower Extremity Muscles during Walking using Nonnegative Matrix Factorization (NNMF) Algorithm Method by Nasim Safari, Mahboubeh Alemzadeh, Mahdi Majlesi, Nader Farahpour, Muharram Mansoorizadeh

    Published 2023-01-01
    “…These changes can be the strategy of the CNS to preserve the optimal functioning in the motor system of blind people.…”
    Get full text
    Article
  19. 25279

    Calculation of Involved and Noninvolved Organs Doses in Carbon Therapy of Brain Tumor Using GEANT4 Simulation Toolkit by Maria Ahmadi, Seyed Mohammad Motevalli, Payvand Taherparvar, Vahid zanganeh

    Published 2024-10-01
    “…Weight factors were employed to generate a Spread Out Bragg Peak (SOBP).Material and Methods: The study used the ORNL-MIRD phantom to simulate carbon therapy for brain tumors, finding that the optimal energy range for carbon ions was 2420-2560 MeV to effectively cover the tumor. …”
    Get full text
    Article
  20. 25280

    Application of Complex Network Principles to Key Station Identification in Railway Network Efficiency Analysis by Li Wang, Min An, Limin Jia, Yong Qin

    Published 2019-01-01
    “…By using efficiency analysis technology for a railway network, combining physical structure with operation functions can help railway industry to optimize the railway network while improving its efficiency and reliability. …”
    Get full text
    Article