Showing 401 - 420 results of 482 for search '"K2"', query time: 0.09s Refine Results
  1. 401

    Aproveitamento agronômico e energético de dejeções suinícolas: estudo de caso com análise econômico-financeira by Felippe Martins Damaceno, Maria Cristina Rodrigues Halmeman, Morgana Suszek Gonçalves, Flávia Vieira da Silva Medeiros

    Published 2017-06-01
    “…Considerando os nutrientes N, P2O5, K2O e a energia elétrica, seria possível a obtenção de R$ 121.186,63 por ano, permitindo a amortização dos investimentos em quatro anos. …”
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  2. 402

    Improving potassium use efficiency of sugarcane through the use of polyhalite by Wilfrand Ferney Bejarano Herrera, Bruna Arruda, Hudson Wallace Pereira de Carvalho, Paulo Sergio Pavinato

    Published 2022-09-01
    “…The purpose of this study was to assess the efficiency of polyhalite (K2Ca2Mg(SO4)4·2H2O) as an alternative source of multinutrients for sugarcane compared to single sources of K, Ca, Mg and S. …”
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  3. 403

    Split Application of Potassium Reduces Rice Chalkiness by Regulating Starch Accumulation Process Under High Temperatures by Xinyue Zhang, Youfa Li, Junjie Dong, Yuanze Sun, Haowei Fu

    Published 2025-01-01
    “…Four treatments, including ambient temperatures with basal K fertilizer (AT-K1), high temperatures with basal K fertilizer (HT-K1), high temperatures with 70% K pre-transplanting and 30% K at the heading stage (HT-K2), and high temperatures with 30% K pre-transplanting and 70% K at the heading stage (HT-K3), were conducted. …”
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  4. 404

    Cataract surgery has minimal effect on corneal shape by Vito Romano, Stephen B Kaye, Keri McLean, Luca Pagano, Esmaeil M Arbabi, Fadi Alfaqawi, Ahmed Al-Maskari, Gabriella Czanner

    Published 2025-01-01
    “…Coupling, defined as ratio of the keratometric change in the preoperative meridians of K2 and K1, varied from 0.91 (SD 2.31) for eyes with an incision in the steep meridian, 0.75 (SD 1.81) for an incision in the flat meridian to 0.28 (SD 2.06) when the incision was made in a neutral meridian.Conclusion Cataract surgery has a slightly greater flattening than steepening effect on corneal shape. …”
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  5. 405

    Phenotypic and genotypic screening of multidrug resistant Klebsiella pneumoniae isolated from ready to eat street food in Tanta, Egypt by Hadeer M. Bedair, Mohamed Emara, Shima Mahmoud Ali, Tamer M. Samir, Mahmoud A.F. Khalil

    Published 2025-02-01
    “…Among ESBLs-encoding-genes, bla SHV was the most prevalent (71.4%) while bla TEM and bla CTX−M−2were equally-present (55.8%).The most prevalent virulence genes were mrkD (92.2%) followed by K2 (63.3%). Conclusion The contaminated RTESF could be a reservoir for Klebsiella pneumoniae, therefore much care must be taken during preparation and consumption to avoid dissemination of MDR Klebsiella pneumoniae leading to subsequent treatment challenges. …”
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  6. 406
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  8. 408

    Multimodal machine learning for analysing multifactorial causes of disease—The case of childhood overweight and obesity in Mexico by Rosario Silva Sepulveda, Magnus Boman, Magnus Boman

    Published 2025-01-01
    “…The unsupervised pipeline used traditional methods with k-Means and hierarchical clustering, with the optimal number of clusters calculated to be k = 2.ResultsThe decision tree classifier in the supervised early fusion approach produced the best quantitative results. …”
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  9. 409

    Adsorption of Copper(II) and Mercury(II) Ions onto Chemically-Modified Chitosan Membranes: Equilibrium and Kinetic Properties by R.B. Rabelo, R.S. Vieira, F.M.T. Luna, E. Guibal, M.M. Beppu

    Published 2012-01-01
    “…Higher rate constants (k 2 ) were obtained for the adsorption of Cu(II) ions onto chitosan–GLA [1.40 g/(mmol h)] and for Hg(II) ions onto raw chitosan [5.65 g/(mmol h)]. …”
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  10. 410

    Gradual Application of Potassium Fertilizer Elevated the Sugar Conversion Mechanism and Yield of Waxy and Sweet Fresh-Eaten Maize in the Semiarid Cold Region by Li Yang, Yu Xin Chi, Yu Feng Wang, Muhammad Zeeshan, Xun Bo Zhou

    Published 2021-01-01
    “…In this study, two of thirty varieties (waxy maize Jin-262 and sweet maize Jingke-183) were used and five proportions of potassium (K2O, 120 kg/ha) were applied at sowing, jointing, and large trumpet stages to identify the high yield and quality of fresh-eaten maize under a semiarid cold ecological condition in Daqing, Heilongjiang province, China, during 2017-2018. …”
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  11. 411
  12. 412

    Study on the Effects of Aluminum and Chromium on the Corrosion Resistance of Hot-Rolled Incoloy 800H Alloy in Molten Carbonate Salts by CAO Junjia, YU Haicun, GAO Yunteng, LI Haixiao, LI Yafeng, XU Shipeng, LA Peiqing

    Published 2024-12-01
    “…Metal alloys are subjected to molten salt corrosion in concentrating solar thermal power systems, leading to a reduction in their lifetime.In order to extend the service life of Incoloy 800H alloy in molten carbonate salt corrosion, Incoloy 800H alloys with varying aluminum(Al) and chromium (Cr) contents were prepared by vacuum induction melting.The corrosion mechanisms of Al and Cr elements on the resistance of 800H alloy to molten carbonate salt corrosion were investigated through analysis and testing methods such as X-ray diffraction (XRD),scanning electron microscopy (SEM) and transmission electron microscopy (TEM).Results showed that the corrosion rate of Incoloy 800H alloy with 3%(mass fraction, the same below) Al content was 1 071.00 μm/a, while that with 2.75%Cr content was 359.56 μm/a after immersion in carbonate molten salt (32.1%Li2CO3+33.4%Na2CO3+34.5%K2CO3) at 650 ℃for 240 h.The corrosion products were mainly LiFeO2 and NiO.This was attributed to the fact that as the Al content increased, the oxide passivation film formed on the surface of the alloy became thicker and denser, providing better protection.The reduction of Cr content led to a decrease in the generation of soluble Cr oxides, an increase in the formation of other protective oxides, and a reduction in the precipitation of Fe elements in the substrate, thus improving the alloy’s corrosion resistance.…”
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  13. 413
  14. 414

    Optimization of Fermentation Conditions for Liquid Strain of a Unique Low-temperature Straw Mushroom (Volvariella brumalis) in China by Xue XIONG, Peng LI, Zhun XIANG, Jing HUANG

    Published 2024-10-01
    “…Suitable carbon sources (glucose, fructose) and nitrogen sources (fermented soybean meal powder, fermented corn pulp) were selected to establish L9 (34) orthogonal table for four-factor and three-level orthogonal tests to obtain the optimal formula for fermentation culture: glucose 20.0 g, fructose 10.0 g, fermented soybean meal powder 2.5 g, fermented corn syrup 2.5 g, KH2PO4 1 g, K2HPO4 0.5 g, MgSO4·7H2O 0.5 g, vitamin B1 10 mg, pH of 6-7, H2O 1000 mL. …”
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  15. 415

    Investigation of Mechanical and Tribological Characteristics of Medical Grade Ti6al4v Titanium Alloy in Addition with Corrosion Study for Wire EDM Process by S. Prakash, C. S. Abdul Favas, I. Ameeth Basha, R. Venkatesh, M. Prabhahar, V. P. Durairaj, K. Gomathi, Haiter Lenin

    Published 2022-01-01
    “…The corrosion inhibition efficiency of the coated sample was performed in SBF (NaHCO3—0.35 g/L, MgCl2.6H2O—0.30 g/L, CaCl2·2H2O—0.37 g/L, K2HPO4. 3H2O—0.23 g/L, Na2SO4—0.071 g/L, NaCl—7.99 g/L, KCl—0.22 g/L, Tris’s buffer—6.063 g/L) solution using the potentiodynamic polarisation method and the solution pH was maintained.…”
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  16. 416

    Fast Rate Production of Biodiesel from Neem Seed Oil Using a Catalyst Made from Banana Peel Ash Loaded with Metal Oxide (Li-CaO/Fe2 (SO4)3) by Ismail J. Madai, Yusufu Abeid Chande Jande, Thomas Kivevele

    Published 2020-01-01
    “…Decomposition profile of CBA was displayed by thermal gravimetric analysis (TGA), whereas in-depth analysis by scanning electron microscope (SEM), X-ray diffraction (XRD), X-ray fluorescence (X-RF), and Fourier-transform infrared spectroscopy (FT-IR) revealed that the high efficiency displayed by a catalyst from banana ash calcined at 650°C was due to the presence of potassium carbonate (K2CO3), a calcium magnesium silicate (CaMgSiO4), and potassium sodium sulphate (KNaSO4) contents that accounted for the high basicity of up to 11.09. …”
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  17. 417

    Justification of choice of corrosion-resistant material of blowout preventer body based on modeling of its elastic-plastic deformation by K. V. Syzrantseva, K. V. Kuskov, M. A. Pazyak

    Published 2022-11-01
    “…The obtained results indicate that the investigated preventer can be manufactured in corrosionresistant versions K1 and K2, but for the execution of K3 it is necessary to develop a fundamentally different geometry of the body.…”
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  18. 418
  19. 419

    Comparación entre hidratación con leche chocolatada descremada y bebida deportiva posterior al ejercicio físico en militares by Rodrigo Fernández Pávez, Francisco Fernández Frías, Carlos Jorquera Aguilera

    Published 2017-08-01
    “…Método: 30 militares (23,0 ± 3,2 años) se dividieron en 2 grupos: 1) rehidratación con bebida deportiva con 6 % de carbohidratos y relación de Na/K 2:1 (grupo ISO). Rehidratación con leche descremada chocolatada (grupo LECHE). …”
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  20. 420