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Showing 281 - 300 results of 3,001 for search 'variation (efficient OR efficiency) method', query time: 0.15s Refine Results
  1. 281
  2. 282

    Spatial Heterogeneity of Soil Nutrient in Principal Paddy and Cereal Production Landscapes of Fengtai County within the Huai River Basin, Eastern China by Zhiyang Jiang, Zheng Yin, Xinbin Li, Daokun Chen, Meiqin Huang, Yuzhi Zhou, Tingsen Wu, Mingze Zhao, Wenshuo Wang, Yupeng Zhang

    Published 2024-10-01
    “…How to accurately and quantitatively evaluate the soil quality of regional cultivated land and realize its efficient use has become an urgent problem. In order to explore the spatial autocorrelation and variation in soil nutrients in cultivated land in the plain of Fengtai County in the Huaihe River Basin, a total of 306 soil samples and mature wheat samples were collected in the study area to analyze soil pH, total nitrogen (TN), available nitrogen (AN), available phosphorus (AP), available potassium (AK) and slow-release potassium (SK) content and wheat biomass, and combined with geostatistical methods and GIS technology. …”
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  3. 283

    E²VRP-CPP: An Energy-Efficient Approach for Multi-UAV Multi-Region Coverage Path Planning Optimization in the Enhanced Vehicle Routing Problem by Yuechao Zang, Xueqin Huang, Min Lu, Qianzhen Zhang, Xianqiang Zhu

    Published 2025-03-01
    “…Experiments using real-world data from the Changsha urban area demonstrate that our approach outperforms state-of-the-art methods in computational efficiency and energy savings, highlighting its potential for practical UAV deployment.…”
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  4. 284

    Numerical Investigation of Spray Cooling Dynamics: Effects of Ambient Pressure, Weber Number, and Spray Distance on Droplet Heat Transfer Efficiency by Abbas Golmohammadi, Farshid Darvishi, Eunsoo Choi, Alireza Ostadrahimi

    Published 2025-04-01
    “…The effects of pressure variation on the efficiency of droplet heat transfer are examined within sub-atmospheric and super-atmospheric pressure ranges at different Weber numbers, all below the critical Weber number of the droplet. …”
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  5. 285

    Twig age 2.0: A novel and reliable method to track variation in ungulate browsing over species, sites and time by Donald M. Waller

    Published 2025-08-01
    “…Abstract Ungulate (deer) browsing threatens forest diversity and tree regeneration, but without efficient and reliable methods, we cannot monitor these impacts. …”
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  6. 286

    Research on the efficient development of shallow geothermal energy: Experimental and numerical investigations on the heat transfer characteristics of the soil-cement energy pile by Huimin RONG, Xun ZHOU, Lizhi WANG, Jia ZHENG, Qimin LI

    Published 2025-03-01
    “…The heating and cooling system of ground-source heat pump is currently the most important development and utilization method of shallow geothermal resources. In order to solve the bottleneck problems of low thermodynamic efficiency and large footprint of the traditional ground heat exchanger in ground-source heat pump system, this study proposes a new scheme of coupling the ground heat exchangers with the soil-cement pile composite foundation, a type of pile foundation where cement and the native soil are mixed on-site in the pile hole while drilling to form a pile, to improve the thermodynamic efficiency of the ground heat exchanger by utilizing the good thermodynamic properties of the ground treatment materials. …”
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  7. 287

    MONITORING AND ANALYSIS OF TRAINING LOAD OF 12-13 YEAR-OLD MALE GYMNASTS FOR A ONE-YEAR TRAINING PERIOD by G. Sergiev

    Published 2021-11-01
    “…AIM: The aim of this study was to register, trace, and analyse the specific indexes of training load of 12-13-year-old artistic gymnasts. METHODS: The research methods we used included: registration, analysis, comparison, variation analysis. …”
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  8. 288

    Design and Implementation of Single Axis Solar Tracking System: Utilizing GPS, Astronomical Equations, and Satellite Dish Actuator for Optimal Efficiency by Rizgar Ahmed Salih, Karzan Qadir Mohammed, Peshawa Osman Hama, Rawaz Othman Hassan, Barham Kamal Noori

    Published 2025-02-01
    “…In this study, the design and implementation of a polar single-axis tracking system is presented to improve the energy efficiency of PV system through angular variation during the day using the proposed tracking system. …”
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    Induction and Growth Kinetics Callus of Tomato (Solanum lycopersicum) by Arkan Setiaji, RR Rifka Annisa, Rumiyati Rumiyati, Endang Semiarti

    Published 2020-04-01
    “…Both fresh and dry weight was measured every 5 days over 60 days to establish the growth kinetics and growth efficiency of callus. Anatomic characters of calli were examined through paraffin-embedded method. …”
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  11. 291

    LIU-NET: lightweight Inception U-Net for efficient brain tumor segmentation from multimodal 3D MRI images by Gul e Sehar Shahid, Jameel Ahmad, Chaudary Atif Raza Warraich, Amel Ksibi, Shrooq Alsenan, Arfan Arshad, Rehan Raza, Zaffar Ahmed Shaikh

    Published 2025-03-01
    “…To overcome these challenges, this research presents a novel and computationally efficient method termed lightweight Inception U-Net (LIU-Net) for the accurate brain tumor segmentation task. …”
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  12. 292

    Development and Efficiency Analysis of Dual Active Bridge Converter Employing SiC Devices Using TMS 320F280039 by T. Deepti, K. Deepa, Albert Alexander Stonier, Geno Peter, A. Anoop, Vivekananda Ganji

    Published 2025-01-01
    “…By comparing the estimated energy efficiency characteristics with measurements from a prototype 90-W single-phase DAB converter fitted with silicon carbide (SiC) MOSFETs, the robustness of this approach is exemplified and loss, and efficiency comparison analysis is carried out with conventional switching devices. …”
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  13. 293

    Developing Geometry Based Criterion Function Method for Predicting Porosity in LM6 Castings by A. Sata, N. Maheta, H. Khandelwal, S.K. Gautam

    Published 2025-06-01
    “…One of the major issues in the metal casting process that affects productivity and energy efficiency is porosity, especially when it comes to castings that are not made in accordance with Original Equipment Manufacturers (OEMs) specifications. …”
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    Aspects Regarding the CO<sub>2</sub> Footprint Developed by Marine Diesel Engines by Octavian Narcis Volintiru, Daniel Mărășescu, Doru Coșofreț, Adrian Popa

    Published 2025-06-01
    “…By analyzing these methods for determining engine emissions, conclusions can be reached about aspects such as the following: engine wear condition, efficiency losses, or incomplete combustion. …”
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    Enhancing Manufacturing Processing Stability and Efficiency with Linear-Regression Analysis: Modeling on a Flow-Drill Screw (FDS) Joining Process by Chengxin Zhang, Mario Guzman, Xuzhe Zhao

    Published 2024-09-01
    “…Statistical analysis, such as data visualization, statistical modeling, and other data-driven analysis methods, can be used to detect underlying relationships between variables, investigate variations, and make predictions in the manufacturing process. …”
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  20. 300

    Adapting Efficiency Analysis in Health Systems: A Scoping Review of Data Envelopment Analysis Applications During the COVID-19 Pandemic by Athanasios Mitakos, Panagiotis Mpogiatzidis

    Published 2024-10-01
    “…Included studies were primary applications of DEA for assessing healthcare efficiency during the COVID-19 pandemic. Key findings derived from thematic analysis of repeating pattern observations were extracted and tabulated for further synthesis, taking into consideration the variations in DMU definitions, the inclusion of undesirable outputs, the influence of external factors, and the infusion of advanced technologies in DEA. …”
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