Core capabilities and services
SRI offers a full range of support from use-inspired R&D and lab demos through to prototypes, early manufacturing and sustained systems. Backed by our rigorous systems-engineering approach, we can develop field-ready products in months rather than years.
Intelligence systems
We enhance government force protection with services from project planning and engineering to installation and field support.
Mission solutions
We protect thousands of military platforms and aircrews by providing aircraft/ground survivability equipment (ASE/GSE) and operational subject matter expertise.
Materials and devices
We solve difficult challenges with expertise in optics, specialty materials, sensors, solid-state devices, and applications in atomic physics.
Cyberspace operations
We provide analytic and operational capabilities including systems development, network and telephony protocols, signal processing and technical exploitation.
Remote sensing and surveillance
We enhance situational awareness in any domain with technologies and systems that enable chemical sensing and unique observation methods.
“We’re not doing experiments for experiments’ sake, or building things that only work under certain lab conditions. Real people rely on our products to work in the field when they need them under pressure .”
Steve Perna
President, Integrated Systems and Solutions
Publications
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Development of a biodosimeter for radiation triage using novel blood protein biomarker panels in humans and non-human primates
We are developing a rapid screening method to assess whether an individual received an absorbed dose of ≥2 Gy based on the analysis of a specific panel of blood proteins in a fingerstick blood sample.
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Evaluation of reaction gap-filling accuracy by randomization
We report on computational experiments of reaction gap filling in which we generated degraded versions of the EcoCyc-20.0-GEM model by randomly removing flux-carrying reactions from a growing model.
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How accurate is automated gap filling of metabolic models?
Here we compare the results of applying an automated likelihood-based gap filler within the Pathway Tools software with the results of manually gap filling the same metabolic model.
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Design and Verification for Transportation System Security
Cyber-security has emerged as a pressing issue for transportation systems. Studies have shown that attackers can attack modern vehicles from a variety of interfaces and gain access to the most safety-critical components. Such threats become even broader and more challenging with the emergence of vehicle-to-vehicle (V2V) and vehicle-to-infrastructure (V2I) communication technologies. Addressing the security issues in transportation systems requires comprehensive approaches that encompass considerations of security mechanisms, safety properties, resource constraints, and other related system metrics. In this work, we propose an integrated framework that combines hybrid modeling, formal verification, and automated synthesis techniques for analyzing the security and safety of transportation systems and carrying out design space exploration of both in-vehicle electronic control systems and vehicle-to-vehicle communications. We demonstrate the ideas of our framework through a case study of cooperative adaptive cruise control.
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Evaluation of OMI Operational Standard NO2 Column Retrievals Using in Situ and Surface-Based NO2 Observations
We assess the standard operational nitrogen dioxide (NO2) data product (OMNO2, version 2.1) retrieved from the Ozone Monitoring Instrument (OMI) onboard NASA’s Aura satellite using a combination of aircraft and surface in situ measurements as well as ground-based column measurements at several locations and a bottom-up NOx emission inventory over the continental US. Despite considerable sampling differences, NO2 vertical column densities from OMI are modestly correlated (r = 0.3–0.8) with in situ measurements of tropospheric NO2 from aircraft, ground-based observations of NO2 columns from MAX-DOAS and Pandora instruments, in situ surface NO2measurements from photolytic converter instruments, and a bottom-up NOx emission inventory. Overall, OMI retrievals tend to be lower in urban regions and higher in remote areas, but generally agree with other measurements to within ± 20%. No consistent seasonal bias is evident. Contrasting results between different data sets reveal complexities behind NO2 validation. Monthly mean vertical NO2 profile shapes from the Global Modeling Initiative (GMI) chemistry-transport model (CTM) used in the OMI retrievals are highly consistent with in situ aircraft measurements, but these measured profiles exhibit considerable day-to-day variation, affecting the retrieved daily NO2 columns by up to 40%. This assessment of OMI tropospheric NO2 columns, together with the comparison of OMI-retrieved and model-simulated NO2columns, could offer diagnostic evaluation of the model.
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Modification of the Loss Cone for Energetic Particles
The optimal pitch angle which maximizes the penetration distance, along the magnetic field, of relativistic charged particles injected from the midplane of an axisymmetric field is investigated analytically and numerically.
ISO Certified
9001 certification since July 2008
CMMI Certified
CMMI-DEV Maturity Level 3 since October 2011