Within-stem variation in the mechanical properties of Portuguese oak wood was analysed, considering different locations (three sites centre and north Portugal—Site 1, Site 2, 3) positions within tree (two distances to pith—P1, P2). The study comprised compression parallel grain, bending strength modulus elasticity. Ultimately, this aims at assuring building a body knowledge on technological qua...

The spline finite strip method (S.F.S.M.) for buckling analysis of plates and plate assemblies subjected to longitudinal compression and bending, transverse compression as well as shear is described. The method allows for the boundary conditions. Local buckling coefficients of plates with different boundary conditions under compression, bending and shear are calculated. Convergence studies with...

Due to the extreme weather that hit throughout year resulted in threat of rice plants falling down. It was known fall a limiting factor for obtaining high yields and quality grain. Therefore, it considered important evaluate resistance general methods planting area. Those were transplanting (TP) direct seed (TBL). Based on this objective, we identified morphophysiology stems laying 2 commonly u...

Abstract: It is believed that the best parts’ design and performance which mimics creation of nature. Palm a very good example an extra ordinary tree must attract attention engineers designers. In contrast with other types trees, palms have vascular, jumble, spongy tissue stem instead wooden one. This reason why palm trees can stand strong hurricanes while cannot. The composed three main parts....

Abstract Cationic cell-wall-bound peroxidase (CWPO-C) from Populus alba is the only Class III that has been shown to be able oxidize high molecular weight lignin polymers sinapyl alcohol and previously, believed a polymerization-specific peroxidase. However, using an Arabidopsis heterologous expression system, we showed recently CWPO-C contributes differentiation or early growth involved in aux...

Leaf and stem fibers of Sorghum halepense L. (SH) were investigated as fillers for recycled polypropylene (RPP) at 10, 20, 30 wt%. The effects SH in RPP on the thermal mechanical properties composites by tensile bending tests, thermogravimetric analysis (TGA), differential scanning calorimetry (DSC). It was found that decreased but their elasticity modulus increased. addition to polymer matrix ...

The spline finite strip method (S.F.S.M.) for buckling analysis of plates and plate assemblies subjected to longitudinal compression and bending, transverse compression as well as shear is described. The method allows for the boundary conditions. Local buckling coefficients of plates with different boundary conditions under compression, bending and shear are calculated. Convergence studies with...

Previous studies have shown that WRKY transcription factors play important roles in abiotic stress responses. Thus, virus-induced gene silencing (VIGS) was used to identify the function of SlWRKY79 salt tolerance tomato plants by downregulating expression gene. Under same treatment conditions, SlWRKY79-silenced showed faster stem wilting and more severe leaf shrinkage than control plants, bendi...

Lodging, defined as the permanent displacement of aboveground parts, is a common problem to cause yield loss, deterioration in seed quality and difficult to harvest in canola (Brassica napus L.) crop production. This study aimed to develop a method for assessing crop lodging, to examine how agronomic practices affected the relationships between root lodging and electrical capacitance traits. Ca...