We compared value recovery of a modified tree-length (MTL) logging system that measures product diameter and length using a Waratah 626 harvester head to that of a tree-length (TL) system that estimates dimensions. A field test compared the actual value cut to the maximum potential value suggested by the log bucking optimization program Assessment of Value by Individual Stems (AVIS) for 25 fell...

Operating at high efficiency is one of the prerequisites sustainable forest operations. Typically, harvesters are designed to operate in tree felling and processing operations under cut-to-length method. However, reasons such as limited business opportunities during year may negatively affect machine utilization rate. Coupled with ownership costs, this results economic sustainability problems. ...

Metallic shear panel dampers (SPDs) have been widely adopted in seismic engineering. In this study, axial and torsional specimens of four types of metallic damping materials, including three conventional metallic steels as well as low yield strength steel 160 (LYS160), were tested in order to investigate the material response under repeated large plastic strain and low cycle fatigue between 10 ...

BACKGROUND Aloe vera (Aloe barbadensis miller) is an evergreen perennial plant widely used in modern herbal practice and is often available in proprietary herbal preparations. OBJECTIVE This study was designed to investigate the semen picture and spermatozoa morphology of West African Dwarf (WAD) bucks treated with Aloe vera extract. MATERIALS AND METHODS Twelve sexually matured WAD bucks, ...

This paper compares the predicted distortion of a manifold geometry fabricated by laser powder bed fusion between an established finite element model using solid elements and newly developed in this shell elements. The models utilized two methods to induce strain field (inherent analytical thermal methods). distortions from these were also compared with experimentally measured distortions. resu...

Stability is a critical factor in structural design. Although buckling-constrained topology optimization has been investigated previous work, the problem not considered under design-dependent loads. In this study, model of buckling constraints problems loads was proposed to solve above problem. First, Kreisselmeier–Steinhauser aggregation function employed reduce multiple single constraint. The...

Many philosophers working on virtue theory have resisted the idea that virtues are practical skills, apparently following Aristotle’s resistance to idea. Bucking trend, Matt Stichter defends a strong version of this in The Skillfulness Virtue by marshaling wide range conceptual and empirical arguments argue moral robust skills involving cognitive-conative unification Aristotelian phronêsis (‘pr...

Recent research has shown drastic reductions in the global diversity and abundance of insects. This is a major concern given expected cascade effects on ecosystem services, such as pollination. Understanding patterns drivers changes distribution species our rapidly changing environment therefore urgent. Cases showing trends that run counter to general population declines, especially when they d...