Parallel Tubular Channel Angular Pressing (PTCAP) process is a novel recently developed severe plastic deformation (SPD) method for producing ultrafine grained (UFG) and nanograined (NG) tubular specimens with excellent mechanical and physical properties. This process has several advantageous compared to its TCAP counterparts. In this paper, a fine grained AZ91 tube was fabricated via multi pas...

This research was aimed at evaluating the proximate composition, level of anti-nutrients, and the mineral composition of raw and processed Sphenostylis stenocarpa seeds and at examining the effect of processing on the parameters. From the proximate composition analysis, the ash content showed no significant difference (P > 0.05) between the processed and unprocessed (raw) samples. However, ther...

This article presents information on employment and payroll generated per unit volume of timber or wood fiber processed by the various manufacturing sectors of Montana's forest products industry for 19871989. Average employment ranged from a high of 117 workers per million cubic feet (mmcf) of wood fiber processed at house log plants, to a low of 12 workers per mmcf at stud mills. Employment-co...

The emerald ash borer, Agrilus planipennis Fairmaire (Coleoptera: Buprestidae), a phloem-feeding insect from Asia, was identified in 2002 as the cause of widespread ash (Fraxinus sp.) mortality in southeastern Michigan and Essex County, Ontario. Most larvae overwinter as nonfeeding prepupae in the outer sapwood or thick bark of large trees. In a series of studies, we evaluated effects of grindi...

wood vinegar is the aqueous phase of the liquid produced during the slow pyrolysis of wood.it has the potential to be used as a pesticide against various weeds, insects and molluscs. due to divergentfeedstocks, pyrolysis processes and storing conditions, the chemical composition of wood vinegar variesbetween producers and time. the aim of our current study was to use the copse snail arianta arb...

Sapstain is considered a defect that must be removed from processed wood. So far, research in automatic wood inspection systems has been mostly limited to dealing with knots. In this paper, we extract a number of colour and texture features from wood pictures. These features are then assessed using machine learning techniques via feature selection, visualization, and finally classification. Apa...

Pulp & Paper Canada T 230 105:10 (2004) ❘ ❘ ❘ 35 wood were interrupted at night or on weekends. Wood supplied to the chippers at this time of year was therefore largely fresh and the age of logs in inventory was generally low. Beginning in the fall, the inventory of cut wood was built up both in the mill’s wood yard and in roadside piles in the woodlands. In winter, this inventory of fall-cut w...