A Diamond Turning Machine (DTM) can fabricate components with extremely high precision and high quality surface finish characteristics. Existing commercial controllers are limited in their ability to support high performance machining and related advanced control algorithms. Evolving enhancements to the functional capability and control algorithms of a DTM require increased performance and flex...

In current day microprocessors, exponentially increasing power densities, leakage, cooling costs, and reliability concerns have resulted in temperature becoming a first class design constraint like performance and power. Hence, virtually every high performance microprocessor uses a combination of an elaborate thermal package and some form of Dynamic Thermal Management (DTM) scheme that adaptive...

A new generation of widely distributed systems to measure the Internet topology at the interface level is currently being deployed. Cooperation between monitors in these systems is required in order to avoid over-consumption of network resources. This paper proposes an architecture for a distributed topology measurement (DTM) system that, for the first time, decentralizes probing information. T...

In the last few years a lot of new possibilities for the acquisition of terrain data were developed. Next to new developments in the area of digital photogrammetry due to automated image matching techniques, laserscanning has revolutionized the capturing of topographic data. For digital terrain models (DTMs) derived from “traditional” photogrammetric techniques accuracy measures, which were der...

Accurate digital terrain models (DTM) are one of the most important requirements for many applications in coastal management and safety, such as the calculation of the volume of dunes and dikes for the purpose of coastal protection. Airborne LIDAR sensors provide dense height information of large areas in an efficient manner, therefore such data are appropriate to derive suitable DTM. Besides r...

This paper presents the theory and applications of a new computational technique referred to as Differential Transform Method (DTM) for solving second order linear ordinary differential equations, for both homogeneous and nonhomogeneous cases. For the robustness and efficiency of the method, four examples are considered. The results indicate that the DTM is reliable and accurate when compared t...

Mary-Ann Davies, MD, MMed,* Harry Moultrie, MD, MSc,† Brian Eley, BSc (Hons), MD,‡ Helena Rabie, MD, MMed,§ Gilles Van Cutsem, MD, DTM&H, MPH,*k Janet Giddy, MD, DipPHCEd, MMed,¶ Robin Wood, BSc, BM, MD, MMed,# Karl Technau, MD, DCH, Dip HIV Man, MSc,** Olivia Keiser, PhD,†† Matthias Egger, MD, MSc, DTM&H,†† and Andrew Boulle, MD, PhD* for the International Epidemiologic Databases to Evaluate A...

In Decentralized Trust Management (DTM) authorization decisions are made by multiple principals who can also delegate decisions to each other. Therefore, a policy change of one principal will often affect who gets authorized by another principal. In such a system of influenceable authorization a number of principals may want to coordinate their policies to achieve long time guarantees on a set ...

Digital thermal monitoring (DTM) of vascular function during cuff-occlusive reactive hyperemia relies on the premise that changes in fingertip temperature during and after an ischemic stimulus reflect changes in blood flow. To determine its utility in individuals with and without known coronary heart disease (CHD), 133 consecutive individuals (age 54 +/- 10 years, 50% male, 19 with known CHD) u...

Diierent dynamic subgrid scale models, viz. the dynamic model of Germano et al. are evaluated by means of a priori tests. Direct numerical simulation data for fully-developed turbulent and transitional incompressible ows are used. Low correlation is obtained between exact and modeled subgrid scale stresses with the DSM. Conversely, good agreement is found for both the DMM and the DTM, since tho...