We propose DEVS-Driven Modeling Language (DDML), a graphical notation for DEVS modeling and an Eclipse-based graphical editor, Eclipse-DDML. DDML attempts to bridge the gap between expert modelers and domain experts making it easy to model systems, and capture the static, dynamic, and functional aspects of a system. At the same time, it unifies C-DEVS and P-DEVS models. DDML integrates excellen...

We present an approach to providing broad-based accessibility to graphical applications by employing the capabilities of the Eclipse development platform and aspect oriented programming (AOP) in a way that leverages the strengths of each. We describe the Eclipse platform and the advantages of AOP and contrast AOP with object oriented programming (OOP). Then, we discuss how to use of Eclipse fra...

This paper reports on our experiences in building an execution-driven architectural simulator that is meant to accurately capture performance costs of a machine for a particular class of software, namely, network protocol stacks such as TCP/IP. The simulator models a single processor of our Silicon Graphics Challenge shared-memory multiprocessor, which has 100 MHz MIPS R4400 chips and two level...

HS0907+1902 was recently discovered to be one of a handful of deeply eclipsing dwarf novae with periods longward of the 2 – 3 hr ‘gap’. This paper presents orbit-resolved spectra and time series photometry of an eclipse. The apparent velocity amplitude of the M-dwarf secondary is K2 = 297 ± 15 km s . The phase of the radial velocities of the Hα emission line wings agrees accurately (for once) w...

While some commonly occurring error patterns in Java are addressed by static tools such as FindBugs[5], complex software systems are full of rules that developers must follow. These application-specific rules are often not expressed in any way other than code comments and often are not enforced, leading to hard-to-detect bugs later in the program execution. Eclipse represents one of the biggest...

We present the XMM-Newton X-ray eclipse lightcurve of the dwarf nova OY Car. The eclipse ingress and egress are well resolved for the first time in any dwarf nova placing strong constraints on the size and location of the X-ray emitting region. We find good fits to a simple linear eclipse model, giving ingress/egress durations of 30±3 s (∆φorb = 0.0055±0.0006). Remarkably this is shorter than t...

Trends in the annual flux of sulfate and nitrate in a new ice core collected at an elevation of 3017 m on Eclipse Icefield, 45 km northeast of Mt. Logan were examined to determine the effect of anthropogenic activity on precipitation chemistry in the remote northwest North American midtroposphere. The annual flux of both sulfate and nitrate at Eclipse began increasing in the 1940s, demonstratin...