Results 21 to 30 of about 4,740,864 (321)

SPATIALIZATION OF SOIL RESISTANCE TO PENETRATION FOR LOCALIZED MANAGEMENT BY PRECISION AGRICULTURE TOOLS [PDF]

open access: yesEngenharia Agrícola, 2018
Soil resistance to penetration is an indicator of easy measurement which can be used to make scarification / subsoiling recommendations in areas that work with localized management.
Jorge W. Cortez   +4 more
doaj   +1 more source

Compactación del suelo durante la cosecha forestal: evolución de las propiedades físicas Soil compaction by forestry harvester operation: evolution of physical properties

open access: yesRevista Brasileira de Engenharia Agrícola e Ambiental, 2000
Se realizaron ensayos en campo con el objeto de evaluar los efectos y la persistencia de la compactación inducida por diferentes intensidades de tránsito durante la cosecha forestal en una población de álamos (Populus sp.).
Roberto Hernán Balbuena   +4 more
doaj   +1 more source

Development of an automated bench top electronic penetrometer [PDF]

open access: yesEngenharia Agrícola, 2013
The aim of this study was to develop a an automated bench top electronic penetrometer (ABEP) that allows performing tests with high rate of data acquisition (up to 19,600 Hz) and with variation of the displacement velocity and of the base area of cone ...
Aloísio Bianchini   +2 more
doaj   +1 more source

Modeling and correction of soil penetration resistance for variations in soil moisture and soil bulk density [PDF]

open access: yesEngenharia Agrícola, 2016
This study aimed to describe the behavior of models for adjusting data of soil penetration resistance for variations in soil moisture and soil bulk density.
Wininton M. da Silva   +2 more
doaj   +1 more source

Axiomatization of the index of pointedness for closed convex cones [PDF]

open access: yesComputational & Applied Mathematics, 2005
Let C(H) denote the class of closed convex cones in a Hilbert space H. One possible way of measuring the degree of pointedness of a cone K is by evaluating the distance from K to the set of all nonpointed cones. This approach has been explored in detail in a previous work of ours.
Iusem, Alfredo, Seeger, Alberto
openaire   +4 more sources

Soil profile analysis based on the identification of the bevametric parameters using cone penetrometer

open access: yesJournal of Agricultural Engineering, 2022
The navigation in a deformable soil is related to the determination of traction and motion resistance via the soil strength. This strength is a function of parameters that are usually estimated using the bevameter tool. However, this tool is not usually
Rania Majdoubi   +2 more
doaj   +1 more source

Soil Measurements in the Context of Planning Harvesting Operations and Variable Climatic Conditions

open access: yesSouth-East European Forestry, 2018
Background and Purpose: Terrain trafficability and vehicle mobility during timber extraction are highly influenced by terrain characteristics, as well as by soil bearing capacity.
Andreja Đuka   +5 more
doaj   +1 more source

Productivity and Quality Sugarcane Broth at Different Soil Management

open access: yesAgronomy, 2023
The quality of sugarcane broth can be affected by soil management. In compacted soils the productivity is reduced, and the raw material is poor. This research aimed to evaluate productivity and quality of sugarcane for four soil management types: (CT ...
Murilo Battistuzzi Martins   +8 more
doaj   +1 more source

Impact of Deferred Versus Continuous Sheep Grazing on Soil Compaction in the Mediterranean Montado Ecosystem

open access: yesAgriEngineering, 2023
Deferred grazing (DG) consists in adapting the number of animals and the number of days grazed to the availability of pasture. Compared to continuous grazing (CG), which is based on a permanent and low stocking rate, DG is a management strategy that aims
João Serrano   +7 more
doaj   +1 more source

A critical index algorithm for nearest point problems on simplicial cones [PDF]

open access: yesMathematical Programming, 1982
We consider the linear complementarity problem (q, M) in which M is a positive definite symmetric matrix of order n. This problem is equivalent to a nearest point problem [/'; b] in which F = {A4, ..., A~} is a basis for R", b is a given point in R'; and it is required to find the nearest point in the simplicial cone Pos(F) to b.
Fathi, Yahya, Murty, Katta G.
openaire   +3 more sources

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