Tree trunks

Block, m, block pig ingot cake (tree) trunk log. -blei, n. pig lead. 

Large, naturally occurring objects such as tree trunks and boulders... 

To reach his tree house, Raymond has to climb 9y feet up a rope ladder, then 8- feet up the tree-trunk. How far does Raymond have to climb altogether ... 

The DEF was primarily dominated by Hopea ferrea and Shorea spp. that formed the upper story 20-40 m above ground. A typical DEF fosters more than 1,000 trees (trunk diameter at breast height, DBH >5 cm) ha-1, and the total basal area at 1.3 m height exceeded 30 m2 ha-1 and the above ground biomass was over 200 tons ha-1 (Kanzaki et al. 1995). 

The architecture of macromolecules is another important synthetic variable. New materials with controlled branching sequences or stereoregularity provide tremendous opportunity for development. New polymerization catalysts and initiators for controlled free-radical polymerization are driving many new materials design, synthesis, and production capabilities. Combined with state-of-the-art characterization by probe microscopy, radiation scattering, and spectroscopy, the field of polymer science is poised for explosive development of novel and important materials. New classes of nonlinear structured polymeric materials have been invented, such as dendrimers. These structures have regularly spaced branch points beginning from a central point—like branches from a tree trunk. New struc-... 

Used industrially as a chemical intermediate used agriculturally to facilitate bark removal from tree trunks and as a fungicide. 

The first data about nonbarrier iron accumulation by external layers of tree trunk bark were received by us on Ermakovskii fluorite-beryllium deposit in Zabaikalye. Detailed research of chemical element (CE) distribution in cross-sections of trees trunks and in their other parts and species of plants were conducted here for... 

Fig. 1. Distribution of iron in trees trunk on the background and the haloes of iron ore bodies (deposit Oktyabr skoe, Tat yaninskoe, and Zmeinaya gorka). A - larch (Larix dahurica Turcz.) B - pine (Pinus silvestris L.) C - birch (Betula platyphylla Sukacz.) D - cedar (Cedrus sibirica (Rupr.) E - fir-tree (Picea obovata Ledeb) F - rowan-tree (Sorbus sibirica Hedl.). 1 - on the haloes (a - the most intensive, b - of middle intensive, c - the less intensive) 2 - on the background.

Even if there are already many suitable nest sites, a bird box may encourage a normally shy species of bird to stay in your yard. Bird boxes can be made of untreated wood or "woodcrete" (a concrete/sawdust composition). The latter version is useful if your garden has predatory squirrels or even woodpeckers with a taste for young birds. All bird boxes should be positioned so that you can access them easily to clean them out in fall, which is important. Put your bird box on a sheltered wall or tree trunk, well away from predators, rain, and direct sunlight. Cats can climb up and reach into boxes from all sorts of unlikely angles, as can gray squirrels, so position the box carefully. 

You can use your own shreddings or buy in bagged products. Apply mulches thickly to damp soil in late spring when it has had a chance to warm up. Apply hay and straw up to 4 in (10 cm) deep and shreddings 2 in (5 cm) deep, keeping a clear area of about 6 in (15 cm) diameter around tree trunks and the base of plants. 

Symptoms Dark brown spots on leaves in the late spring. These drop out leaving a "shot hole" appearance. Cankers usually occur on plum tree trunks and cherry branches. Initially, amber-colored gum exudes from a slight depression. Leaves become yellow and stems die back. 

The sample of tree trunk contained well-defined rings. 

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