Results 41 to 50 of about 164 (124)

Soil compaction due to forest harvest operations Compactação do solo em conseqüência das operações de colheita florestal

Pesquisa Agropecuária Brasileira, 2007
The objective of this work was to determine, through the use of the bearing capacity model, the traffic effects of the forest harvest operations on the preconsolidation pressure (sigmap), during one cycle of the eucalyptus plantation.
Moacir de Souza Dias Junior, Sebastião da Fonseca, Cezar Francisco Araújo Júnior, Arystides Resende Silva   +3 more
doaj   +1 more source

Localized Energy Absorption through LaB6 Surface Modification of PA12 Enables Enhanced Tensile Performance in Diode Laser PBF‐LB

Chemistry–Methods, Volume 5, Issue 12, November 2025.
LaB6 surface modification of PA12 enables efficient NIR diode laser PBF‐LB processing, with enhanced tensile strength and tailored microstructures achieved at minimal additionaly energy. By reducing the need for high filler content, this approach expands the options and performance levels of advanced industrial‐grade polymer additive manufacturing. The
Nadine Stratmann, Michael Willeke, Simon Leupold, Kateryna Loza, Arne Lüddecke, Arno Kwade, Michael Schmidt, Stephan Barcikowski, Anna Rosa Ziefuss   +8 more
wiley   +1 more source

Compressibilidade de um solo sob sistemas de pastejo rotacionado intensivo irrigado e não irrigado Soil compressibility under non-irrigated and irrigated short duration grazing systems

Revista Brasileira de Ciência do Solo, 2004
O incremento da produtividade das pastagens tem sido associado ao comportamento à compressão dos solos. Os objetivos deste trabalho foram: quantificar as curvas de compressão e a pressão de preconsolidação em sistemas de pastejo intensivo rotacionado ...
C. L. R. Lima, A. P. Silva, S. Imhoff, T. P. Leão   +3 more
doaj   +1 more source

Improving Constitutive Modelling of Soft Organic Clays With New Experimental Insight

International Journal for Numerical and Analytical Methods in Geomechanics, Volume 49, Issue 18, Page 4480-4501, 25 December 2025.
ABSTRACT The engineering response of soft organic clays is controlled by anisotropy, stress history and the nature of organic matter. The behaviour of these soils has been investigated extensively over compression triaxial paths, and models are available to successfully reproduce available experimental observations. However, open questions remain about
Ching‐Yu Chao, Stefano Muraro, Cristina Jommi   +2 more
wiley   +1 more source

Modelagem da capacidade de suporte de carga e quantificação dos efeitos das operações mecanizadas em um Latossolo Amarelo cultivado com cafeeiros Modelling the load support capacity and quantification of mechanized operation effects on a Yellow Latosol under coffee plantations

Revista Brasileira de Ciência do Solo, 2006
O Estado de Minas Gerais é o maior produtor de café do Brasil, com mais de 50 % da produção total, sendo grande parte da área cultivada originalmente ocupada por vegetação de cerrado.
Arystides Resende Silva, Moacir de Souza Dias Junior, Paulo Tácito Gontijo Guimarães, Cezar Franciso Araújo Júnior   +3 more
doaj   +1 more source

Modelling Wetting Collapse, Failure and Deposition of an Unsaturated Slope With Material Point Method

International Journal for Numerical and Analytical Methods in Geomechanics, Volume 49, Issue 18, Page 4526-4551, 25 December 2025.
ABSTRACT The paper presents the modelling of unsaturated soils with the material point method (MPM), including the effect of wetting leading to the loss of strength and the volumetric collapse. The elastoplastic Clay and Sand Model (CASM) extended to unsaturated conditions, formulated in terms of Bishop's stress and suction, has been implemented in an ...
Gaia Di Carluccio, Luis A. Aviles, Núria M. Pinyol, Eduardo E. Alonso   +3 more
wiley   +1 more source

Effects of humidity and freeze-thaw cycles on compression and pore structure characteristics of expansive soils

Yantu gongcheng xuebao
Through the experimental and theoretical studies, the effects of humidity and freeze-thaw (FT) cycles on the compression and pore structure characteristics of a compacted expansive soil have been investigated.
HAN Zhong 1, 2 , ZOU Weilie 1, 2, PEI Qiuyang 1, WANG Xiequn 3, ZHANG Hongri 4
doaj   +1 more source

Resistência à compactação de um Latossolo cultivado com cafeeiro, sob diferentes sistemas de manejo de plantas invasoras Resistance to soil compaction of an Oxisol cultivated with coffee plants under different weed Management systems

Revista Brasileira de Ciência do Solo, 2008
O conhecimento dos níveis de pressão que podem ser aplicados aos solos submetidos a diferentes sistemas de manejo das plantas invasoras é essencial para adaptar o manejo de lavouras cafeeiras de forma sustentável. O objetivo deste estudo foi o de avaliar
Cezar Francisco Araujo-Junior, Moacir de Souza Dias Junior, Paulo Tácito Gontijo Guimarães, Bruno Silva Pires   +3 more
doaj   +1 more source

Strength, Hydraulic, and Microstructural Characteristics of Expansive Soils Incorporating Marble Dust and Rice Husk Ash

Advances in Civil Engineering, 2021
Expansive/swell-shrink soils exhibit high plasticity and low strength, which lead to settlement and instability of lightly loaded structures. These problematic soils contain various swelling clay minerals that are unsuitable for engineering requirements.
Fazal E. Jalal, Sultani Mulk, Shazim Ali Memon, Babak Jamhiri, Ahsan Naseem   +4 more
doaj   +1 more source

How Compressible Are Salt Marshes? Unique Field Experiments Combined With Advanced Modeling Provide Novel Insights From the Venice Lagoon

Journal of Geophysical Research: Earth Surface, Volume 130, Issue 12, December 2025.
Abstract Coastal depositional environments, particularly salt marshes, are among the morphologies most vulnerable to relative sea‐level rise (RSLR). Their ability to withstand changing conditions is closely related to their capacity to accrete sediment, gaining elevation at a rate comparable to RSLR. Sedimentation, decomposition of organic remains, and
Claudia Zoccarato, Selena Baldan, Francesco Gatto, Paolo Zorzan, Marta Cosma, Cristina Da Lio, Sandra Donnici, Luigi Tosi, Philip S. J. Minderhoud, Alessandro Bergamasco, Pietro Teatini   +10 more
wiley   +1 more source