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Resource-saving inter-row cultivator
Published 2017-08-01“…Operating width of a ploughshare is of 420 mm, thickness equals 4 (5) mm. …”
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42
Plasma hardening of heavily loaded parts of soil-cutting machines
Published 2023-01-01“…It is shown that surface plasma hardening of ploughshare made of structural steel 65Mn in the hardened zone with thickness of 0,8 mm leads to formation of gradient-layered (mixed) structure consisting of finely dispersed mixture decay products of fine-grained austenite with variable microhardness in the range of 760 – 395 HV. …”
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43
Étude métallographique de fers à cheval et d’outillage agricole du site de Montbaron. Éléments de réflexion sur la qualité des matériaux employés en sidérurgie médiévale...
Published 2004-10-01“…Two of them, a hatchet and a hoe, seem to have undergone case hardening or treatment intended to render their external surfaces more resistant. The ard ploughshare and the horseshoes however do not show, in their minor elements, a homogenous composition : the original billets have not been deliberately chosen for any specific qualities. …”
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44
Parameters of the furrow cutter with levellers of the combined machine
Published 2023-01-01“…The combined machine consists of disc knives, reverse-cutting ploughshare housings, roller, thresher and levellers. …”
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45
Placement of plow working bodies for plowing soil slopes
Published 2023-01-01“…It has been established that to ensure complete turnover of the layers within their own furrow by the hulls and the formation of the required ridges and intermittent grooves longitudinal distance between and toe even-numbered body ploughshare should be at least 110 cm.…”
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46
A Justification of Broach-Plow’s Parameters of the Ridge-Stepped Ploughing
Published 2019-01-01“…It was indicated that the turnover of the layers with the lowest energy costs is provided with the following parameters of the plow of odd hulls: plow length is 75 cm, plow width is 25 cm, stabilizing plate height is 15 cm, and the minimum distance from the ploughshare toe to the stabilizing plate is 25 cm. An installation angle of the plate to the furrow bottom, the length of the plate and the width of the wing holders, as well as the physical and mechanical properties of the soil have a significant impact on the traction resistance of the hedge.…”
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Study on machine for processing and preparing the soil for sowing potatoes on ridges
Published 2021-01-01“…On the basis of multifactorial experiments, the following parameters are justified: the angle of inclination of the ploughshare blade in the range of 6-70, the height and length of the guiding knife in the range of 94-110 mm and 107.2-136 mm, respectively. …”
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48
Theoretical substantiation of the form of working separator bodies at pre-sowing stone soil treatments
Published 2023-01-01“…To implement the method, a proposed device includes a frame, a ploughshare mounted on it, and a separating grid made of several parallel wire elements, sowing machines, disc coulters, and fenders. …”
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Results of the Archaeometallographic Study of the Collection of Forged Pieces from the Shcherbet Settlement on the Lower Kama
Published 2022-12-01“…Schemes and methods of making 31 items made of ferrous metal were determined: a ploughshare, a chisel, 2 axes, 4 sickles, 13 knives, 4 awls, 2 rings for fastening, two fishhooks and two rod-shaped items. …”
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50
Comparative ecophysiology of a critically endangered (CR) ectotherm: Implications for conservation management.
Published 2017-01-01“…We tracked plasma concentrations of steroid stress and reproductive hormones, body condition, activity, and environmental parameters in three populations (one wild and two geographically distinct captive) of ploughshare tortoise (Astrochelys yniphora). Hormone profiles along with environmental and behavioral data are presented and compared. …”
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51
La agricultura ibérica del Levante en su contexto mediterráneo
Published 2010-02-01“…The need also arises to study the climatic-botanical conditions of a territory in order to know its agricultural resources; we refer to cultivations and tools focusing specially on how important the use of the iron ploughshare turned out to be. Finally, we deal with some issues related to labour force social conditions, land property and niche imbalances, always looking at the Italian Peninsula out of the corner of our eye.…”
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THE USE OF SMART PIEZOCERAMICS FOR CULTIVATING THE SOIL IN AGRICULTURE
Published 2019-10-01“…The aim of the work is to improve the cultivation working bodies by reducing the total amount of traction resistance (friction) of the soil on the surface of the ploughshare and reducing the sticking of the working bodies by using SMART PIEZOCERAMICS and vibration principles. …”
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53
Effect of side-wings on draught: The case of Ethiopian ard plough (maresha)
Published 2016“…This research considered tool geometry (maresha plough with and without side-wings) and rake angle (shallow - 8°, medium deep - 15°, and deep - 24°, representing primary, secondary and tertiary tillage processes in Ethiopia, respectively).Maresha plough with side-wings has greater contact area, between the moving soil and tool, than its wingless counterpart. When the ploughshare surface and soil slide relative to one another, the draught expected to increase with contact area, as adhesion and friction resistance increases with area. …”
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Simulation of Soil Cutting and Power Consumption Optimization of a Typical Rotary Tillage Soil Blade
Published 2022-08-01“…Finally, the effectiveness of the simulation optimization model in reducing power consumption and the accuracy of the soil-cutting simulation were verified by a rotary tilling inter-field test, which provided theoretical reference and technical support for the design and optimization of other typical soil-touching parts of tillage and related equipment, such as disc harrow, ploughshare, and sub-soiling shovel.…”
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