Investigating the relationships between soil and sugarcane attributes under different row spacing configurations and crop cycles using the state-space approach

2022 ◽  
Vol 217 ◽  
pp. 105270
Author(s):  
Wildon Panziera ◽  
Claudia Liane Rodrigues de Lima ◽  
Luís Carlos Timm ◽  
Leandro Sanzi Aquino ◽  
Willian Silva Barros ◽  
...  
Keyword(s):  
State Space ◽  
The State ◽  
Row Spacing ◽  
State Space Approach ◽  
Space Approach

Assessment of cross-laminated timber panels by the state-space approach

2019 ◽  
Vol 22 (11) ◽  
pp. 2375-2391
Author(s):  
Asad S Albostami ◽  
Zhangjian Wu ◽  
Lee S Cunningham
Keyword(s):  
State Space ◽  
Three Dimensional ◽  
The State ◽  
Composite Panel ◽  
State Space Approach ◽  
Cross Laminated Timber ◽  
Practical Applications ◽  
The Cross ◽  
Analytical Approaches ◽  
Space Approach

In this article, cross-laminated timber panels are investigated as a novel engineering application of the state-space approach. As cross-laminated timber is a laminated composite panel, the three-dimensional analytical method provided by the state-space approach offers the potential for improved accuracy over existing common approaches to the analysis of cross-laminated timber. Before focusing on the specific application to cross-laminated timber, the general theory of the state-space approach is outlined. The method is then applied to describe the behaviour of a number of cross-laminated timber panel configurations previously examined experimentally and analytically. In order to demonstrate the capability of the state-space approach in this application, the results are compared with those from various two-dimensional and three-dimensional analytical approaches and finite element modelling briefly. With a view to design, different failure criteria are explored to assess the ultimate strength of the cross-laminated timber panels. The state-space approach demonstrates its superior capability in capturing the nonlinear distribution of the elastic stresses through the thickness of the cross-laminated timber panels over a range of span-to-thickness ratios common in practical applications.

scholarly journals State-space approach for the analysis of soil water content and temperature in a sugarcane crop

1999 ◽  
Vol 56 (4 suppl) ◽  
pp. 1215-1221 ◽  
Author(s):  
Durval Dourado-Neto ◽  
Luís Carlos Timm ◽  
Julio Cesar Martins de Oliveira ◽  
Klaus Reichardt ◽  
Osny Oliveira Santos Bacchi ◽  
...  
Keyword(s):  
State Space ◽  
Water Content ◽  
Soil Water ◽  
Soil Water Content ◽  
Management Practices ◽  
Bare Soil ◽  
The State ◽  
Ratoon Crop ◽  
State Space Approach ◽  
Space Approach

The state-space approach is used to describe surface soil water content and temperature behaviour, in a field experiment in which sugarcane is submitted to different management practices. The treatments consisted of harvest trash mulching, bare soil, and burned trash, all three in a ratoon crop, after first cane harvest. One transect of 84 points was sampled, meter by meter, covering all treatments and borders. The state-space approach is described in detail and the results show that soil water contents measured along the transect could successfully be estimated from water content and temperature observations made at the first neighbour.

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