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  1. AU="Emmanuel Awuah"
  2. AU="Losi, Luca"
  3. AU=Dar S A AU=Dar S A
  4. AU="Wang, Shih-Yun"
  5. AU="Sharma, Podila Satya Venkata Narasimha"
  6. AU="Distefano, Marco"
  7. AU="Malleda, Neeraja R"
  8. AU="Framme, Jenny Lingman"
  9. AU="Howells, Laurence"
  10. AU="Golubeva, M"
  11. AU="Pavlyk, Iuliia"
  12. AU="Persons, A K"
  13. AU="Carbone, Vincenzo"
  14. AU="R.G.Ormiston, " AU="R.G.Ormiston, "
  15. AU=Sinha Surabhi
  16. AU="Whitby, Thomas Michael"
  17. AU="F Hossain"
  18. AU="Xavier, Joicymara S."
  19. AU="Heidenreich, Sebastian"
  20. AU="Clifford, Muireann"
  21. AU="Armendariz, R."
  22. AU="Cho, Yoon-Kyoung"
  23. AU="Payne, Emily"
  24. AU="Desseauve, David"
  25. AU="Elrod, Virginia A"
  26. AU=Alpaydin Aylin O AU=Alpaydin Aylin O
  27. AU=Amin Kritika Premnath
  28. AU="Subramanian, Prem S"
  29. AU="S.Wang, "
  30. AU="Kotrotsiou, Evagelia"
  31. AU="Belnap, Ethan"
  32. AU="Luo, Jianming"
  33. AU=Hsu Pin-Jui
  34. AU=Debaud Charlotte
  35. AU="García-Rubia, Alfonso"
  36. AU=Belot Alexandre
  37. AU="Jorge Ospina Duque"
  38. AU="Chalot, Michel"
  39. AU="Gunsolley, J N"
  40. AU="Tuè, Giovanni"
  41. AU="de Laat, Bart"
  42. AU=Drory Omri
  43. AU="Pothlichet, Julien"
  44. AU="Douwes, Rianne M"
  45. AU="Jarzebowski, Mary"
  46. AU="Shetty, Sunil"
  47. AU="Ricardo Ryoshim Kunyioshi"
  48. AU=Santos Maria Cristina Leme Godoy Dos AU=Santos Maria Cristina Leme Godoy Dos

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  1. Artikel ; Online: Biomimetic tool design improves tillage efficiency, seedbed quality, and straw incorporation during rototilling in conservation farming

    Ian Torotwa / Qishuo Ding / Emmanuel Awuah / Ruiyin He

    Journal of Agricultural Engineering, Vol 54, Iss

    2023  Band 1

    Abstract: Rotary tillage facilitates conservation agriculture in rice-based crop farming systems through minimal soil disturbance for seedbed preparation and crop residue management. However, efficiency of rotary tiller blades is hampered by degraded paddy soils ... ...

    Abstract Rotary tillage facilitates conservation agriculture in rice-based crop farming systems through minimal soil disturbance for seedbed preparation and crop residue management. However, efficiency of rotary tiller blades is hampered by degraded paddy soils and excessive crop residue conditions. Biomimetics presents an edge in the optimisation design of cultivation tools and can be employed to improve the efficiency of rotary tiller blades. This study was designed to evaluate the adaptability and performance of biomimetic rotary tiller blades inspired by the geometric structure of a mole rat’s claw. Field experiments were conducted to evaluate the blades’ torque and power requirements, soil fragmentation, displacement characteristics, and the rate of straw incorporation at three tillage depths (i.e., 40, 70, and 100 mm). Results revealed that the biomimetic blades minimised torque by up to 21.05%, had lower specific power requirements, and produced finer tilths with granular and more even clod sizes than conventional blades. It also achieved more redistribution of topsoil and improved the straw burial rate. The biomimetic rotary tiller blades are thus energy-efficient and can improve soil structure and the quality of seedbeds, besides managing crop residues through incorporation, and therefore advance conservation tillage in intensive farming systems.
    Schlagwörter Biomimetic design ; Conservation tillage ; Mean Weight Diameter (MWD) ; rotary tillage ; straw incorporation ; Torque ; Agriculture ; S ; Agriculture (General) ; S1-972
    Thema/Rubrik (Code) 670
    Sprache Englisch
    Erscheinungsdatum 2023-03-01T00:00:00Z
    Verlag PAGEPress Publications
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  2. Artikel ; Online: Review of Discrete Element Method Simulations of Soil Tillage and Furrow Opening

    Kojo Atta Aikins / Mustafa Ucgul / James B. Barr / Emmanuel Awuah / Diogenes L. Antille / Troy A. Jensen / Jacky M. A. Desbiolles

    Agriculture, Vol 13, Iss 541, p

    2023  Band 541

    Abstract: In agricultural machinery design and optimization, the discrete element method (DEM) has played a major role due to its ability to speed up the design and manufacturing process by reducing multiple prototyping, testing, and evaluation under experimental ... ...

    Abstract In agricultural machinery design and optimization, the discrete element method (DEM) has played a major role due to its ability to speed up the design and manufacturing process by reducing multiple prototyping, testing, and evaluation under experimental conditions. In the field of soil dynamics, DEM has been mainly applied in the design and optimization of soil-engaging tools, especially tillage tools and furrow openers. This numerical method is able to capture the dynamic and bulk behaviour of soils and soil–tool interactions. This review focused on the various aspects of the application of DEM in the simulation of tillage and furrow opening for tool design optimization. Different contact models, particle sizes and shapes, and calibration techniques for determining input parameters for tillage and furrow opening research have been reviewed. Discrete element method predictions of furrow profiles, disturbed soil surface profiles, soil failure, loosening, disturbance parameters, reaction forces, and the various types of soils modelled with DEM have also been highlighted. This pool of information consolidates existing working approaches used in prior studies and helps to identify knowledge gaps which, if addressed, will advance the current soil dynamics modelling capability.
    Schlagwörter calibration ; DEM contact models ; soil dynamics ; soil failure ; soil forces ; cohesive and frictional soils ; Agriculture (General) ; S1-972
    Thema/Rubrik (Code) 670
    Sprache Englisch
    Erscheinungsdatum 2023-02-01T00:00:00Z
    Verlag MDPI AG
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

    Volltext online

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