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  1. 241

    Comparison of the extraction efficiencies of four different solvents used in trace metal digestion of selected soils within Abakaliki, Nigeria by NO Omaka, IF Offor, ER Chukwu, U Ewuzie

    Published 2015-07-01
    “…This work seeks to compare the extraction efficiencies of EDTA, DTPA, HNO3/HClO4 and HCl/HNO3 used in the digestion of soil samples collected from 11 different locations (7 farmlands, 2 waste dumpsites and 2 sections of a mechanic workshop) within Abakaliki metropolis, between August and September 2007. …”
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  2. 242

    Effects of Different Nitrogen and Phosphorus Ratios on the Growth, Nutritional Value, and Nutrient Removal Efficiency of <i>Wolffia globosa</i> by Rapeepan Yongyod, Narong Kamolrat

    Published 2025-05-01
    “…A trade-off was observed between biomass production and phosphorus removal efficiency, suggesting that different N:P ratios may be suited to specific application goals. …”
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  3. 243

    Numercial modeling for enhanced heat transfer efficiency of spiral coils with supercritical fluid flow under different operating conditions by Xinling Wang, Naeim Farouk, Xiaoqing Fu, Pradeep Kumar Singh, Guo Xu, Fahad M. Alhomayani, Baseem Khan, Fawaz S. Alharbi, Barno Sayfutdinovna Abdullaeva, Laith H. Alzubaidi, Yasser Elmasry, Hakim A.L. Garalleh

    Published 2024-12-01
    “…The study examines the impact of different cross-sectional geometries. The primary objective of the study is to examine the impact of critical parameters, including shape, hydraulic diameter, inlet temperature, mass flux, and operating pressure, on important variables such as friction factor, heat transfer coefficient, and exergy efficiency. …”
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  4. 244

    Effect of N fertilizer and N use efficiency under different N levels of application in high-fertility paddy field by FENG Tao, YANG Jing-ping, SHI Hong-xin, ZHENG Hong-fu, SUN Jun-hua

    Published 2006-01-01
    “…In this paper the effect of N fertilizer and N use efficiency under different levels of N application in high-fertility paddy field in Northern Zhejiang Province was studied. …”
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  5. 245

    Effects of nitrogen management on grain yield and nitrogen use efficiency of two hybrid rice varieties with different panicle masses by Yang Shimin, Yang Zhiyuan, Sun Yongjian, Ma Jun

    Published 2015-11-01
    “…There was no significant difference in dry matter accumulation at maturity stage between large and medium panicle hybrid rice, but difference of dry matter productivity was observed before and after anthesis. …”
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    Impact of national e-commerce demonstration city pilot policy on urban carbon emission efficiency: From the perspective of soft and hard environments by YUE Li, WANG Xinran

    Published 2024-12-01
    Subjects: “…national e-commerce demonstration city|pilot policy|carbon emission efficiency|difference-in-differences model|double machine learning model|soft environment|hard environment…”
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  11. 251

    Growth and nitrogen productivity of drip-irrigated winter wheat under different nitrogen fertigation strategies in the North China Plain by Sunusi Amin ABUBAKAR, Abdoul Kader Mounkaila HAMANI, Guang-shuai WANG, Hao LIU, Faisal MEHMOOD, Abubakar Sadiq ABDULLAHI, Yang GAO, Ai-wang DUAN

    Published 2023-03-01
    “…Excessive application of nitrogen (N) fertilizer is the main cause of N loss and poor use efficiency in winter wheat (Triticum aestivum L.) production in the North China Plain (NCP). …”
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  12. 252

    Optimizing Nitrogen and Water Use Efficiency in Wheat Cropping Systems Through Integrated Application of Biochar and Bokashi Under Different Irrigation Regimes by Gyanendra Dhakal, Takeshi Fujino, Srijana Thapa Magar, Yuji Araki

    Published 2025-03-01
    “…Addressing the challenge of reducing environmental pollution from agricultural practices by improving nitrogen use efficiency (NUE) and water use efficiency (WUE) while ensuring high crop yields is essential for sustainable agriculture. …”
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  13. 253

    Model Calculation of Enhanced Light Absorption Efficiency in Two-Dimensional Photonic Crystal Phosphor Films by Taehun Kim, Sanghoon Lee, Kyungtaek Min

    Published 2024-12-01
    “…When a phosphor film based on a photonic crystal (PhC) is excited at the photonic band-edge wavelength, the absorption of excitation light increases, which can potentially enhance the color-conversion efficiency. In this study, we modeled a two-dimensional (2D) PhC quantum dot (QD) film with a square-lattice structure using the finite-difference time-domain method to theoretically investigate its optical properties. …”
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    Comparative analysis of different PV technologies under the tropical environments by V. Femin, R. Veena, M. I. Petra, S. Mathew

    Published 2025-05-01
    “…The results of this study offer valuable insights into the performance of different PV systems under tropical regions, which can be used in efficiently designing and managing solar PV projects.…”
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  19. 259

    Effect of Different Bag Opening Methods of Oyster Mushroom (Pleurotus ostreatus) on Growth Parameter, Yield and Benefit Cost Ratio by G. K. Upamanya, R. Brahma, R. Sarma, P. Sharma, K. Das

    Published 2021-11-01
    “…The present study was undertaken to find out the effect of four different methods of bag opening on yield, benefit cost ratio (BCR) and biological efficiency of oyster mushrooms during November, 2020 to March, 2021. …”
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