Should Grain Elevator Managers Adopt Integrated Pest Management?

Insect infestation during storage and processing causes millions of dollars of wheat damage annually in the United States. Insect infestation reduces wheat storing processing profit as well as consumer confidence in wheat food products. Meanwhile, increased concerns about insecticide use have increase interest in Integrated Pest Management (IPM) strategies. This research compares the costs of IPM and chemical-based approaches to insect control to determine why most elevator managers have not adopted IPM practices.Agribusiness,

Investigation of the Effect of Microstructure on the R-Curve Behavior of Metal-Ceramic Composites

An investigation was made into the effect of microstructure on the peak toughness and shape of the crack growth resistance curves for two ceramic-metal composites. An Al{sup 2}O{sup 3}/Al composite formed by Reactive Metal Penetration was used along with an AlN/Al composite formed using a reactive infiltration technique. The results indicate that the toughness increases with an increase in the volume fraction of the metal phase for a particular composite composition, and the peak toughness and shape of the R-Curve also depend on the composite microstructure and metal composition

Structures Related to the Emplacement of Shallow-Level Intrusions

A systematic view of the vast nomenclature used to describe the structures of shallow-level intrusions is presented here. Structures are organised in four main groups, according to logical breaks in the timing of magma emplacement, independent of the scales of features: (1) Intrusion-related structures, formed as the magma is making space and then develops into its intrusion shape; (2) Magmatic flow-related structures, developed as magma moves with suspended crystals that are free to rotate; (3) Solid-state, flow-related structures that formed in portions of the intrusions affected by continuing flow of nearby magma, therefore considered to have a syn-magmatic, non-tectonic origin; (4) Thermal and fragmental structures, related to creation of space and impact on host materials. This scheme appears as a rational organisation, helpful in describing and interpreting the large variety of structures observed in shallow-level intrusions

Fundamentals of Composite Sandwich Panels

This laboratory exercise will help instructors explain the particulars of designing composite sandwich panels, which are used in a variety of applications like surfboards, wake boards and corrugated cardboard. The experiment is explained step by step; this document will serve as a framework for instructors and may be downloaded in PDF format. The exercise would be appropriate for grades 4 through 12. It should take anywhere from one to three hours to complete

Wireless, Self-Organizing Cyber-Physical Systems

Cyber-physical systems carry several unique challenges, stemming from their scope and scale. Because they must “go where the work is, ” they must depend on wireless communication at the edges. There are many devices, and they must move with the physical entities that they measure and control. Furthermore, the real world has physical limitations, and some of its entities will be independent actor