Results 21 to 30 of about 32,459 (292)
Field crop rotations in organic agriculture of the Volgograd region
BIO Web of Conferences, 2020 Soil fertility in biologized crop rotations depends on the saturation of them with legumes and sideral crops, perennial grasses, the involvement of grain crops in the organic matter cycle.
Shatokhin Alexander A, +4 more
doaj +1 more source
Room temperature control of grain orientation via directionally modulated current pulses
Materials Research Express, 2023 Traditional approaches to control the microstructure of materials, such as annealing, require high temperature treatment for long periods of time. In this study, we present a room temperature microstructure manipulation method by using the mechanical ...
Md Hafijur Rahman +3 more
doaj +1 more source
Journal of Materials Research and Technology, 2022 By employing a quasi-in-situ method, we investigated the crystallographic texture evolution process of high purity tantalum during compression deformation.
Qianqian Zhu +5 more
doaj +1 more source
Barnett Relaxation in Thermally Rotating Grains [PDF]
The Astrophysical Journal, 1997 We present an exact formulation of the physics of Barnett relaxation. Our formulation is based on a realistic kinetic model of the relaxation mechanism which includes the alignment of the grain angular momentum in body coordinates by Barnett dissipation, disalignment by thermal fluctuations, and coupling of the angular momentum to the gas via gas ...
Lazarian, A., Roberge, W. G.
openaire +2 more sources
Dislocation Emission and Crack Dislocation Interactions
Metals, 2020 An understanding of the crack initiation and crack growth in metals spanning the entire spectrum of conventional and advanced has long been a major scientific challenge. It is known that dislocations are involved both in the initiation and propagation of
Chandra S. Pande, Ramasis Goswami
doaj +1 more source
Карантин і захист рослин, 2022 Goal. To determine the species composition of weed plants and their dominant role, to establish the type and level of weediness of corn crops for grain grown in stationary crop rotation and monoculture in the conditions of the Eastern Forest Steppe of ...
R. Hutianskyi +3 more
doaj +1 more source
Simultaneous grain boundary motion, grain rotation, and sliding in a tricrystal [PDF]
Mechanics of Materials, 2015 Grain rotation and grain boundary (GB) sliding are two important mechanisms for grain coarsening and plastic deformation in nanocrystalline materials. They are in general coupled with GB migration and the resulting dynamics, driven by capillary and external stress, is significantly affected by the presence of junctions.
Basak, Anup, Gupta, Anurag
openaire +2 more sources
Densification and preservation of ceramic nanocrystalline character by spark plasma sintering [PDF]
, 2012 Spark plasma sintering is a hot pressing technique where rapid heating by dc electric pulses is used simultaneously with applied pressure. Thus, spark plasma sintering is highly suitable for rapid densification of ceramic nanoparticles and preservation ...
Estournès, Claude +7 more
core +1 more source
A meta-analysis of long-term effects of conservation agriculture on maize grain yield under rain-fed conditions [PDF]
, 2011 Conservation agriculture involves reduced tillage, permanent soil cover and crop rotations to enhance soil fertility and to supply food from a dwindling land resource.
Giller, Ken E. +29 more
core +1 more source
Materials Research Express, 2022 Friction stir processing is an important method for acquiring ultrafine-grained materials. In this paper, 3 mm ZK60 magnesium alloy sheet was carried for friction stir processing.
Yijie Hu +5 more
doaj +1 more source