User's and test case manual for FEMATS

The FEMATS program incorporates first-order edge-based finite elements and vector absorbing boundary conditions into the scattered field formulation for computation of the scattering from three-dimensional geometries. The code has been validated extensively for a large class of geometries containing inhomogeneities and satisfying transition conditions. For geometries that are too large for the workstation environment, the FEMATS code has been optimized to run on various supercomputers. Currently, FEMATS has been configured to run on the HP 9000 workstation, vectorized for the Cray Y-MP, and parallelized to run on the Kendall Square Research (KSR) architecture and the Intel Paragon

TacSat-4 Mission and the Implementation of Bus Standards

This paper provides an overview of the TacSat-4 mission with a focus on the COMMx payload. It discusses the lessons-learned to date and the challenges of building a payload to fly on the prototype spacecraft Bus built to the ORS Phase III Bus standards. Each TacSat experiment tests key elements of an operational system by taking frequent tangible steps to spiral capability and receive operational feedback, while moving toward Operationally Responsive Space (ORS) acquisitions. The TacSat-4 experiment’s mission was selected by a Joint panel. Tacsat-4 has several ORS system level objective including using a prototype bus to mature spacecraft bus standards for acquisition and to fly in a “low” highly elliptical orbit, enabling a new set of ORS missions that require dwell, such as communications. TacSat-4 provides a Communications-on-the-Move and Data-Exfiltration payload. Building a TacSat that operates in a high radiation, highly elliptical orbit is quite challenging for the low cost class and short schedules that TacSats must support. The COMMx payload is currently undergoing system level environmental testing. The ORS Bus Standards flight prototype is complete and ready for integration with the payload. Space vehicle integration and test will be performed from August to October 2008 with launch scheduled for September 2009

Achieving human and machine accessibility of cited data in scholarly publications

Reproducibility and reusability of research results is an important concern in scientific communication and science policy. A foundational element of reproducibility and reusability is the open and persistently available presentation of research data. However, many common approaches for primary data publication in use today do not achieve sufficient long-term robustness, openness, accessibility or uniformity. Nor do they permit comprehensive exploitation by modern Web technologies. This has led to several authoritative studies recommending uniform direct citation of data archived in persistent repositories. Data are to be considered as first-class scholarly objects, and treated similarly in many ways to cited and archived scientific and scholarly literature. Here we briefly review the most current and widely agreed set of principle-based recommendations for scholarly data citation, the Joint Declaration of Data Citation Principles (JDDCP). We then present a framework for operationalizing the JDDCP; and a set of initial recommendations on identifier schemes, identifier resolution behavior, required metadata elements, and best practices for realizing programmatic machine actionability of cited data. The main target audience for the common implementation guidelines in this article consists of publishers, scholarly organizations, and persistent data repositories, including technical staff members in these organizations. But ordinary researchers can also benefit from these recommendations. The guidance provided here is intended to help achieve widespread, uniform human and machine accessibility of deposited data, in support of significantly improved verification, validation, reproducibility and re-use of scholarly/scientific data

Public COAPI Toolkit of Open Access Policy Resources

The Coalition of Open Access Policy Institutions (COAPI, https://sparcopen.org/coapi ) is committed to sharing information and resources to assist in the development and implementation of institutional Open Access (OA) policies. The COAPI Toolkit includes a diverse collection of resources that COAPI members have developed in the course of their OA policy initiatives. These resources are openly accessible and published here under Creative Commons Attribution 4.0 licenses, unless otherwise noted on the resources themselves