Michael Charles Perkins

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The hyporheic zone (HZ) is the active ecotone between the surface stream and groundwater, where exchanges of nutrients and organic carbon have been shown to stimulate microbial activity and transformations of carbon and nitrogen. To examine the relationship between sediment texture, biogeochemistry, and biological activity in the Columbia River HZ, the(More)
Like traditional classroom instruction, distributed learning derives from passive training paradigms. Just as studentcentered classroom teaching methods have been applied over several decades of classroom instruction, interactive approaches have been encouraged for distributed learning. While implementation of multimedia-based training features may appear(More)
) as a raw material for high-volume furniture production, information on its sanding properties is relatively sparse. This study was carried out to provide some fundamental understanding of the sanding properties of the material, from an industrial perspective. The results suggest that the sanding process is suitable for low to moderate stock removal, for(More)
vi CHAPTER 1. GENERAL INTRODUCTION 1 1.1 Problem Statement 1 1.2 Thesis Organization 1 1.3 Overview of Network Covert Channels 2 1.4 Overview of Information Hiding in TCP/IP 3 1.5 Network Layer 5 1.5.1 Do not Fragment Bit 5 1.5.2 IP Identification Field 6 1.5.3 IP Header Checksum 6 1.5.4 ICMP Data 6 1.6 Transport Layer 7 1.6.1 TCP Time Stamps 7 1.6.2(More)
This paper sets out to present the importance of incorporating fatigue related information into the product engineering of furniture constructions. Contrary to commonly accepted thinking, structural failures in furniture very often result from fatigue associated with its repeated use. Hence, performance testing of furniture is needed not only to determine(More)
Peripheral machining of Rubberwood LVL and solid Rubberwood were carried out on a computer numerical control router, using cemented tungsten carbide cutters. The cutter wear rate and power consumption showed similar patterns of increment. Rubberwood LVL was found to be four times as abrasive as solid Rubberwood, and a combination of wear mechanisms were(More)
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