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INFLUENCE OF SOIL BULK DENSITY AND MATRIC PRESSURE ON SOIL RESISTANCE TO PENETRATION
Canadian Journal of Soil Science, 1972Cylinders of a clay loam soil were adjusted to different bulk density and matric pressure combinations to study soil resistance to a penetrating probe. Regression analysis of the penetrometer data produced no evidence to reject a regression model of the form Y = β0X0 + β1X1 + β2X2 + β3X12 + β4X22 + β5X1X2 (where Y = penetrometer resistance, X1 = bulk ...
H. F. MIRREH, J. W. KETCHESON
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A survey on the soil penetration resistance and soil moisture content in field experiments
Acta Agronomica Hungarica, 2011Various forms of physical soil degradation, including soil compaction, have been widely investigated both in Hungary and abroad. Soil compaction is a world-scale problem, which may be triggered by both natural and artificial factors and may adversely influence the effectiveness of crop production.
P. Földesi, C. Gyuricza
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ASPECTS REGARDING THE REDUCTION OF PENETRATION RESISTANCE OF SOIL AS A CONSEQUENCE SOIL WORKING
Environmental Engineering and Management Journal, 2010Soil penetration resistance greatly affects crop quality, the foresight resistance of various working parts of farm machinery and therefore energy consumption for the establishment of different cultures. The paper presents results of experimental determination of soil penetration resistance before and after deep raising work, made with the subsoiler ...
Florin Loghin, Ionut Capatina
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PENETR — a generalized semi-empirical model estimating soil resistance to penetration
Soil and Tillage Research, 1990Abstract A model estimating resistance to penetration of mineral soils as affected by texture ( μ m clay content), bulk density and gravimetric moisture content was developed. The model was validated using experimental results published by 19 authors from various parts of the world.
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The penetration experiment to predict liquefaction resistance of reclaimed soils
Ocean Engineering, 2008Abstract The liquefaction resistance of the soils used to be estimated through the in situ tests, such as standard penetration test and cone penetration test; or by means of cyclic triaxial test in laboratory. However, both in situ tests and cyclic triaxial test are time-consuming and costly; this study introduces a quick and cost-effective method to
Jing-Wen Chen, Fu-Cheng Chen
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Soil resistance to penetration in different tillage methods
2000Aimed at determining the optimal tillage method for the region, four-year penetration resistance measurements, among others, were carried out on stagnic podzouvisols of the trial field near Daruvar in central Croatia. The trial included the following treatments: Standard plot, Conventional ploughing up/down the slope, No-tillage, Conventional ploughing
Butorac, Anđelko +2 more
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Effects of Cone Velocity and Size on Soil Penetration Resistance
1969Abstract : Data show the cone penetration resistance of fine-grained soils is proportional to velocity and inversely proportional to cone diameter. An exponential equation based on the velocity-diameter ratio is developed to describe the interrelation. The exponent changes only slightly with the soil type.
Dean R. Freitag, Gerald W. Turnage
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Antibiotic Resistance in the Patient With Cancer: Escalating Challenges and Paths Forward
Ca-A Cancer Journal for Clinicians, 2021Amila K Nanayakkara +2 more
exaly
Standard penetration resistance in cohesionless soils
International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, 1978openaire +1 more source