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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.

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All sources NASA NTRS DOE OSTI

NASA NTRS1997

The ASC Data Archive for the AXAF Ground Calibration

A data archive is near completion at the AXAF Science Center (ASC) to store and provide access to AXAF data. The archive is a distributed client/server system. It consists of a number of different servers which handle flat data files, relational data, replication across multiple sites, and the interface to the WWW. There is a 4GL client interface for each type of data server, C++ and Java APIs, and a number of standard clients to archive and retrieve data. The architecture is scalable and configurable in order to accommodate future data types and increasing data volumes. The first release of the system became available in August 1996 and has been successfully operated since then in support of the AXAF calibration at the George C. Marshall Space Flight Center, Huntsville, AL. This paper will present the overall archive architecture and the design of client and server components. It will also review the ground calibration data contents, the plan for flight data, and the access to the data by ASC internal users and processing pipelines.

Zografou, Panagoula↗

DOE OSTI2012

INL High Level Language Microcontroller Implementa

The overall goal of this project is to improve the security of embedded devices (microcontrollers) used in monitoring and control of energy-sector infrastructure. As these devices are essentially scaled-down personal computers (PCs), they are vulnerable to common low-level cyber-attacks such as buffer overflows and insecure authentication. The implementation of a modern high-level programming language on these microcontrollers would disallow such low-level attacks as the languages would have inherent safeguards against these types of cyber exploits. Idaho National Laboratory (INL) has partnered with Siemens Corporate Research (SCR) to develop and test a 4 th -generation language DNP3 implementation on real-world embedded hardware. These tests were carried out on control-system device models currently deployed in real-world applications. Testing was performed with existing C-based DNP implementation as well as the Python version developed by INL.

4GL↗