<title>Abstract</title> Approximately 1-2% of the wood processed for pulp production is converted into sawdust and pinchips, which are commonly burned energy in industries that already produce excess power. This material, juvenile only containing sapwood, poses challenges its valorization. study explores extraction polyphenols from Eucalyptus residues generated by a industry Uruguay, aiming to evaluate their suitability as partial replacements phenol-formaldehyde (PF) adhesives. Using...

To understand how the thinning strategies impacts on wood quality and quantity for different purposes is of interest, considering that management plantations carried out with parameters have yet to be validated growth conditions. This work evaluated contrasting regimes applied early at two moments crop cycle. With an initial population 840 trees.ha-1, populations ranging from 700 400, 400 100 trees.ha-1 were 1.5 7.3 years, respectively. Growth analyses ages 20.8 years considering: total...

Understanding how thinning strategies impact wood quality and quantity for different purposes is of interest, given that plantation management often based on parameters require validation under varying growth conditions. Planted forests solid in the northern region Urugay, western Argentina South Brazil are usually managed initial stockings ranging from 800 to 1200 trees·ha−1 depending use clones or seeds. Subsequent thinnings applied (at ages 3 11 years) up final around 200 trees·ha−1. This...

In quenching by submerging the workpiece is cooled due to vaporization, convective flow and interaction of both mechanisms. The dynamics these phenomena very complex corresponding heat fluxes are strongly dependent on local variables such as velocity fluid vapor fraction. This dependence may produce different cooling rates along piece, responsible for inappropriate metallurgical transformations, variability material properties residual stresses. order obtain an accurate description during...

A fully automated technique for wood pith detection (APD), relying on the concentric shape of structure ring slices, is introduced. The method estimates ring's local orientations using 2D tensor and finds position, optimizing a cost function designed this problem. We also present variant (APD-PCL), parallel coordinates space, that enhances method's effectiveness when there are no clear tree patterns. Furthermore, refining previous work by Kurdthongmee, YoloV8 net trained detection, producing...

The automatic detection of tree-ring boundaries and other anatomical features using image analysis has progressed substantially over the past decade with advances in machine learning imagery technology, as well increasing demands from dendrochronology community. This paper presents a publicly available database 64 scanned images transverse sections commercially grown Pinus taeda trees northern Uruguay, ranging 17 to 24 years old. collection contains several challenging for ring detection,...

A fully-coupled model of quenching by submerging for steel workpieces is presented. The includes cooling the piece due to piece-to-bath heat transfer calculations solving multiphase problem an evaporable fluid, as well corresponding metallurgical transformations, generation residual stresses and associated geometrical distortions. takes into account different boiling stages, from film at very high workpiece surface temperatures, single-phase convection temperatures below saturation....

Reeling process is one of the more used methods for installations linepipes in recent years. Pipes are welded onshore and subsequently reeled onto a drum. During installation, line unreeled, straightened, then laid into sea. The pipe subjected to severe cyclic plastic deformation. Due characteristics process, it necessary guarantee integrity components during after process. For this reason, structural reliability analyses essential requirements. In previous work [1], fracture mechanics based...

Several problems in engineering and applied sciences require the parameters optimal determination. An example of such is fitting a Cole-Cole theoretical curve to experimental measurements relative permittivity biological media. Fitting curves requires high level accuracy determine values its (the so-called parameters). In this work, set algorithms developed aimed at obtaining equation for permittivity. The are implemented way, achieve robust fitting, reach error suitable parameters,...

Structural integrity analyses are used to guarantee the reliability of critical engineering components under certain conditions interest. In general, involved parameters have statistical distributions. Choosing a single set values for interest does not show real distribution output parameters. particular, offshore pipes installation by reeling is matter concern due severe process. Since it necessary pipes, probabilistic fracture mechanics analysis seems be most adequate approach. this work,...

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The reeling process is one of the most important methods for offshore installations linepipes. Pipe segments are welded onshore and subsequently bent over a cylindrical rigid surface (reel) in laying vessel. pipe significantly cyclically strained. Due to high loading condition, costs operations severe failure consequences, it necessary guarantee integrity components during process. Conventional defect assessment procedures not explicitly developed situations with large cyclic plastic...

This work describes a Tree Ring Detection method for complete Cross-Sections of trees (CS-TRD). The is based on the detection, processing, and connection edges corresponding to tree's growth rings. depends parameters Canny Devernay edge detector ($\sigma$ two thresholds), resize factor, number rays, pith location. first five are fixed by default. location can be marked manually or using an automatic detection algorithm. Besides localization, CS-TRD fully automated achieves F-Score 89\% in...

Uruguayan fast-growing Eucalyptus grandis has emerged as a promising sustainable material for structural building components. However, traditional methods joining timber components, such beams and columns, typically rely on metallic fasteners, mass products like glued laminated often use adhesives. In response to growing environmental concerns over the past five years, researchers have explored substitution of petroleum-based adhesives fasteners with wooden pegs or dowels. To create...

Eucalyptus bosistoana presents itself as a species with significant potential for commercial use due to its wood's high hardness and exceptional natural durability, well capacity provide shade shelter livestock. In Uruguay, this is not yet planted on scale, only small forested area dedicated research purposes. Knowledge about E. remains limited, making study contribution both national international databases, offering insights opportunities in the forestry sector. This, turn, allows...

The reeling process is one of the most important methods for offshore installations linepipes. Pipe segments are welded onshore and subsequently bent over a cylindrical rigid surface (reel) in laying vessel. In standard cycle pipes reeled onto drum, off, aligned straightened. High plastic deformation introduced pipe. Due to high loading condition, costs operations severe failure consequences, it necessary guarantee integrity components during process. Conventional defect assessment...