22 Fettke, C. R., op. cit., 231; Koeberlin, F. R., "The Brewster Iron-Bearing District of New York," Econ. Geol., 4, 737 (1909). 23 Fettke, C. R., op. cit., 234. 24 Schuchert, C., and Longwell, C. R., op. cit., 321-324. 26 Schuchert, C., and Longwell, C. R., op. cit., 321. 26 Emerson, B. K., U. S. G. S. Bull., 597, 48-49 (1917); Emerson, B. K., U. S. G. S. Mon., 29, 252-299 (1898). 27 White, D....

Tree root distribution and activity are determinants of belowground competition. However, studying root response to environmental and management conditions remains logistically challenging. Methodologically, nondestructive in situ tree root ecology analysis has lagged. In this study, we tested a nondestructive approach to determine tree coarse root architecture and function of a perennial tree ...

In engineering practice, numerical simulations of deep tunneling are commonly based on isotropic linear–elastic perfectly plastic rock models. Rock, however, exhibits highly nonlinear and distinct direction-dependent mechanical behavior. The former is characterized by irreversible deformation, associated with strain hardening softening, the degradation stiffness; latter due to inherent structur...

Abstract The phyllite-weathered soil is a regional speciality. It essential to study the changes in shear strength of under dry-wet cycles understand mechanical properties process climate and manage slope soil. This paper simulated 12 on specimens remodelled Direct SEM tests were conducted 0th, 3rd, 6th, 9th, 12th drying paths. effects moisture content number analysed macroscopically microscopi...

Polyurethane is a highly versatile material and depending on its structure it can be applied in several application fields. One of main applications insulating for the construction sector, while most common product shape rigid expanded panel. This work investigates possibility optimizing polyurethane panels building purposes by considering different particle fiber reinforcements. Precisely, add...