Logical design techniques for error control.
Logical processing units and interconnection networks design noting reliability, fault diagnosis, computer coordination of data and control processes, etc
DATA CONTROL SYSTEM↗
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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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Non-dispersive X-ray emission analysis for lunar surface geochemical exploration
Instrument for diagnosis of lunar surface and data reduction procedures
LUNAR SURFACE↗
Electrocardiograph transmitted by RF and telephone links in emergency situations
Electrocardiograph of an injured human subject is transmitted by RF and telephone links from the ambulance at the emergency scene, to the hospital emergency facilities. This system eliminates delay in the diagnosis of required therapy, thereby enhancing emergency and rescue operations.
Carpenter, L. R.↗
Combinatorial techniques for fault identification in multi-terminal networks.
Fault identification and diagnosis in multiterminal devices by combinatorial techniques for computer programming
Happ, W. W.↗
Diagnostic criteria for grading the severity of acute motion sickness.
Diagnosis criteria for grading severity of acute motion sickness applicable to empirical evaluation of clinical methods
Cramer, D. B.↗
Theory and design of reliable spacecraft data systems Quarterly progress report, 10 Aug. - 9 Nov. 1969
Design analysis and fault diagnosis for spacecraft data systems
Source record↗
Comparison of five levels of motion sickness severity as the basis for grading susceptibility
Less severe diagnosis for grading motion sickness susceptibility
Graybiel, A.↗
Theory and design of reliable spacecraft data systems Quarterly progress report, 10 May - 9 Aug. 1969
Theory and techniques for design, analysis, and fault diagnosis of reliable spacecraft data systems
Source record↗
Analysis of multilayered fiber composites
Multilevel analysis computer program is useful in fiber matrix composites diagnosis, in structural syntheses of multilayered thornel/epoxy composite plates, in buckling studies of simply supported multilayered fiber composite plates, and in computing lamination residual stresses in angle ply composites.
Chamis, C. C.↗
Thermal analysis system /TAS-1/ program
Digital computer program develops temperature control system which maintains various subsystems within proper temperature limits. Coding is simple and input rules are easy to use and remember. Output format is easy to understand and to analyze for error diagnosis.
Hultberg, J. A.↗
Heart disease diagnostic tool
Computer animated display device for diagnosis of heart disease
Source record↗
Study of applications of bio-space technology to patient monitoring systems Final report
Investigation of application of NASA developed technology to cardiovascular and pulmonary patient monitoring to improve availability of data for medical diagnosis
Buck, W. A.↗
Theory and design of reliable spacecraft data systems
Theory and techniques applicable to design, analysis, and fault diagnosis of reliable spacecraft data systems
Source record↗
COMAD - Application to future manned space vehicles
Computer methods for automatic diagnosis program applied to future manned space vehicles, discussing cost relationship to fault isolation techniques and component reliability
Garzia, R. F.↗
Techniques for improving reliability of computers
Modular design techniques improve methods of error detection, diagnosis, and recovery. Theoretical computer (MARCS (Modular Architecture for Reliable Computer Systems)) study deals with postulated and modeled technology indigenous to 1975-1980. Study developments are discussed.
Cater, W. C.↗
Applications of aerospace technology in the public sector
Current activities of the program to accelerate specific applications of space related technology in major public sector problem areas are summarized for the period 1 June 1971 through 30 November 1971. An overview of NASA technology, technology applications, and supporting activities are presented. Specific technology applications in biomedicine are reported including cancer detection, treatment and research; cardiovascular diseases, diagnosis, and treatment; medical instrumentation; kidney function disorders, treatment, and research; and rehabilitation medicine.
Anuskiewicz, T.↗
Mechanical systems readiness assessment and performance monitoring study
The problem of mechanical devices which lack the real-time readiness assessment and performance monitoring capability required for future space missions is studied. The results of a test program to establish the feasibility of implementing structure borne acoustics, a nondestructive test technique, are described. The program included the monitoring of operational acoustic signatures of five separate mechanical components, each possessing distinct sound characteristics. Acoustic signatures were established for normal operation of each component. Critical failure modes were then inserted into the test components, and faulted acoustic signatures obtained. Predominant features of the sound signature were related back to operational events occurring within the components both for normal and failure mode operations. All of these steps can be automated. The structure borne acoustics technique lends itself to reducing checkout time, simplifying maintenance procedures, and reducing manual involvement in the checkout, operation, maintenance, and fault diagnosis of mechanical systems.
Source record↗
Logic design for dynamic and interactive recovery.
Recovery in a fault-tolerant computer means the continuation of system operation with data integrity after an error occurs. This paper delineates two parallel concepts embodied in the hardware and software functions required for recovery; detection, diagnosis, and reconfiguration for hardware, data integrity, checkpointing, and restart for the software. The hardware relies on the recovery variable set, checking circuits, and diagnostics, and the software relies on the recovery information set, audit, and reconstruct routines, to characterize the system state and assist in recovery when required. Of particular utility is a handware unit, the recovery control unit, which serves as an interface between error detection and software recovery programs in the supervisor and provides dynamic interactive recovery.
Carter, W. C.↗