Drilling-induced delamination is among the major concerns of applying the fiber-reinforced composite materials in various industries. Core drill ossesses the advantage for reducing the delamination by distributing the drilling thrust force toward the drill periphery. The thrust force of core rill varying with the conditions in drilling carbon fiber reinforced plastic (CFRP) is experimentally in...

The objective of this research was to assess soil conservation practices for improving water quality of return flows from rill irrigation in the Yakima River Basin, Washington, by combining patch application of polyacrylamide (PAM) with an additional erosion control practice. A 2-year field study was conducted that combined PAM with (1) check dams, (2) surge irrigation, (3) surface drains, and ...

Forest roads are often subject to intense runoff and erosion, the rates can be increased by other disturbance factors, such as wildfires. Since scarce literature exists on effects of wildfires rill erosion forest roads, this study presents first results a wider research, evaluating in four different types Hellìn (Castilla-La Mancha, Central-Eastern Spain): unpaved made native materials (soil fo...

Rundschau 85(1): 65{70. Abstract Erosion is a complex process consisting of many components, like surface runoo, impact of raindrops, wind forces, soil, and rock mechanics, etc. Trying to integrate all these processes into a physical model seems to be hopeless. In order to understand the variety of natural shapes and patterns produced by erosion we present an integrated statistical approach. Ou...

The erosion of The Loess Plateau could be regarded as one kind of representations of the huge complex system, which is the landform of topography. The complexity of the process is well reflected in an idealized nonlinear system called Cellular Automaton (CA) which is quite sensitive of the initialization and it may lead to an inestimable result just because of tiny differences of the initial se...