Results 1 to 10 of about 104,170 (148)
Vitrified bond diamond grinding wheel based on hollow corundum microspheres
Jin'gangshi yu moliao moju gongcheng, 2022 The effect of the content and the size (0.2, 0.4, 0.6 mm) of the hollow corundum microspheres on the total porosity, the flexural strength, the hardness and the microstructure of vitrified bond was investigated.
Chuang XUAN +3 more
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Factors Affecting the Relationship Between Total Porosity and Electrical Resistivity for Concrete Repair Materials [PDF]
Engineering and Technology Journal, 2008 The paper examines the properties of five different types of repair and substratematerials, including conventional mortar, fly ash mortar, silica fume mortar, conventionalconcrete substrate, and high-performance concrete substrate materials.
Maan Salman Hassan
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Effects of wood extraction using farm tractor on soil physical properties (Case study: Gorazbon district in Khyrud forest) [PDF]
تحقیقات جنگل و صنوبر ایران, 2014 Tractor-based logging systems are the most common type of small-scale equipments. Farm tractors equipped with a 2-wheel trailer are mostly used to perform forwarding operations of pulpwoods and fuelwoods in the Hyrcanian forests of Iran.
Meghdad Jourgholami +3 more
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AGRO-PHYSICAL DEGRADATION OF IRRIGATED SYRT DARK-CHESTNUT SOILS OF SARATOV TRANSVOLGA REGION
Научный журнал Российского НИИ проблем мелиорации, 2019 The aim of the research was to study changes in the agrophysical properties of dark chestnut soils as a result of long-term irrigation. The research was carried out at the Ershovskaya Experimental Station of irrigated agriculture of Research Institute of
L. G. Romanova +2 more
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Particle Densities of Horticultural Substrates
HortScience, 2022 The heterogeneity of horticultural substrates makes basic physical characteristics, such as total porosity and particle density, difficult to estimate. Due to the material source, inclusion of occluded pores, and hydrophobicity, particle density values ...
Paul C. Bartley III +3 more
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Green waste biochar effects on sandy soil physicochemical properties
Journal of Oasis Agriculture and Sustainable Development, 2022 The organic amendment of degraded soil in South East of Tunisia was used to restore the chemical, and physical properties of soil quality investigated in this study.
Habib Lamourou +4 more
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Revista Brasileira de Ciência do Solo, 2009 The system of no-till sowing stands out as being a technology that suits the objectives of more rational use of the soil and greater protection against the erosion. However, through till, any of it, occurs modifications of the soil's structure.
João Tavares Filho, Daniel Tessier
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Аграрная наука Евро-Северо-Востока, 2023 In the conditions of the Chuvash Republic in a long-term stationary experiment there has been studied the effect of crop rotations (grain- fallow and green manure) and methods of primary tilling of soil (by the plow PLN-3-35 to the depth of 24-26 cm; by ...
D. A. Dementiev, A. A. Fadeev
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Ciência e Agrotecnologia, 2010 Com a intensa mecanização das operações florestais, a compactação do solo, causada pelo tráfego, pode ser limitante para a obtenção de maiores produtividades.Objetivou-se, neste estudo, avaliar as alterações em algumas propriedades físicas e mecânicas ...
Arystides Resende Silva +2 more
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Revista Brasileira de Engenharia Agrícola e Ambiental, 2010 Este trabalho objetivou determinar os parâmetros de compressibilidade de um Argissolo Vermelho através de ensaios de compressão uniaxial, com três tempos de aplicação de pressão compressiva (7,5 s, 1 e 2 min) em duas umidades do solo (0,113 e 0,164 kg kg-
Vera R. M. Macedo +2 more
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