The structure of wood based medium density fiberboard (MDF) has been studied using synchrotron radiationbased x-ray microtomography (SRμCT.) Fully automated 3D segmentation and analysis routines have been developed in order to gain information about individual fibers, the distribution of the fiber material, fiber orientation, fiber surfaces and size and location of contact areas. Representative...

In this paper we present a numerical solution for the mathematical modeling of the hot-pressing process applied to medium density fiberboard. The model is based in the work of Humphrey [1982], Humphrey and Bolton [1989] and Carvalho and Costa [1998], with some modifications and extensions in order to take into account mainly the convective effects on the phase change term and also a conservativ...

Aquatic macrophytes have been widely studied because of their capability of absorbing contaminants from water and their subsequent use in biomonitoring. This study presents a comparison of Cr accumulating potential of submerged aquatic plants viz Vallisneria spiralis and Hydrilla verticillata. These plants were treated with various concentrations of treated tannery effluent collected from UASB,...

10–1 Adhesive bonding of wood plays an increasing role in the forest products industry and is a key factor for efficiently utilizing our timber resource. The main use of adhesives is in the manufacture of building materials, including plywood, oriented strandboard, particleboard, fiberboard, structural composite lumber, doors, windows and frames, and factory-laminated wood products. Adhesives a...

The mechanical properties of wood-based composites are dependent upon the properties of the wood components (e.g. wood fibers, wood strands) and the manner in which they are combined. The relationship between fiber mechanical properties and fiber-based composites has been discussed in several publications, but is best described in Page et al. (1977). This paper will focus primarily on the influ...

In this paper we present a numerical solution for the mathematical modeling of the hot-pressing process applied to medium density fiberboard. We have started our development from the paper of Carvalho & Costa [2] and the model presented by Humphrey in his PhD. thesis [4] with some modifications and extensions in order to take into account mainly the convective effects on the phase change term a...

In this paper we present a numerical solution for the mathematical modeling of the hot-pressing process applied to medium density fiberboard. We have started our development from the paper of Carvalho & Costa [2] and the model presented by Humphrey in his PhD. thesis [4] with some modifications and extensions in order to take into account mainly the convective effects on the phase change term a...

During the last two decades the brewing industry has shown increasing awareness for environmental protection and the need of sustainable production processes. Implementation of ISO 14001 certification and more stringent environmental legislation have been important drivers for the brewing industry to invest in biological effluent treatment. The role of biological effluent treatment is discussed...