Helping you design success!
Helping you design success!
EXPERIENCE AND QUALIFICATIONS
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Technical Systems Associates, Inc. is a small business equal opportunity employer that was formed in 1974 with expertise and experience in activities in the private, industrial, commercial and governmental sectors. These activities include but are not limited to:
Technical Systems Associates, Inc. has been involved in a variety of activities a sampling of which are listed below.
U.S.DEPARTMENT OF ENERGY APPROPRIATE TECHNOLOGY SMALL GRANTS PROGRAM, REGION III
ENERGY CONSERVATION ACTIVITIES
GENERAL ENERGY RELATED SERVICES
RESEARCH AND DEVELOPMENT EXPERIENCE
Includes studies pertaining to the reliability of large scale system operations. Worked on the design and analysis of circuitry related to computer tape drives. Worked on guidance and navigation research related to stellar analysis, star tracker and earth sensing equipment. Performed research in connection with digital, analog, and hybrid simulation and analysis of optimal Earth to Mars transfer trajectories in conjunction with Princeton University. Worked on the development of digital computer programs to simulate congested traffic conditions in urban areas and methods of determining the optimal location and size of vehicle terminals within an urban environment. Initiated research in the control of transportation systems. Worked on the development of power system load flow studies and on the optimal planning of generation for large scale electric power systems. Performed research on the effect of thermal energy storage upon electrical utilities. Also initiated research in the area of economy dispatch of electric power while imposing environmental constraints. Studied the effect of energy allocation upon the environment. Initiated research in the area of optimization of the dynamic response of AC/DC systems using the Edison Electric Institute laboratory facilities at the University of Pennsylvania. Initiated research in the accurate determination of synchronous machine parameters and in the use of thermography to determine heat loss in institutional and residential buildings. Performed research in the optimization of AC/DC control systems for electrified railroad test tracks. Worked on the development of an energy plan for the Commonwealth of Pennsylvania. Worked on the determination of long distance electrical power transfer limitations. Investigated the application of expert systems to electric utility system planning analysis.
SELECTED CONSULTING
Philadelphia Electric Company, Philadelphia, PA.Pennsylvania Power & Light Company, Allentown, PA.Delmarva Power Company, Newark, DE.Public Service Gas & Electric Company, Newark, NJ.Consolidated Railroad Company, Philadelphia, PA.Sears Roebuck & Company, Chicago, Il.Electronics Associates Inc., Princeton, NJ.Electrical Safety for the University of PA. Hospital, Philadelphia, PA.Gilbert Associates, Reading, PA.ECON Inc., Princeton, NJ.Argonne National Laboratory, Argonne, Il.Levitan Electrical Equipment, Inc., Long Island, NY. Wolf, Block, Schorr and Solis-Cohn, Philadelphia, PA.Houghton Mifflin Publishing Company, Boston, MA.
Research Activities
Reliability(Control Systems Reliability):
Using Markov model representations of control systems: Developed methods to compute mean time to failure (MTTF) for individual failure states in multifailure state systems and investigated their mathematical and physical interpretations. Developed mathematical models for common cause failures. Investigated the effects of common cause failures and diagnostic coverage on systems performance. Developed realistic models of state of the art controllers including common cause failures, diagnostic coverage, and maintenance and operating policies. Compared performances of different system architectures. Developed analysis tools for determining the effects of periodic inspection on the performance of safety-critical systems. Investigated the effects of non-exponentially distributed repair times on system performance. Developed models to incorporate process demand into the analysis of system safety.
(Hardware Reliability):
Analyzed avionics repair data to determine the relation between increased levels of built-in-test, and maintainability and false alarm rates. Developed a Bayesian methodology for analysis of reliability demonstration data. Developed method for numerical computation of mean time to failure for individual failure states in a Markov model and applied method to realistic models of high reliability programmable controllers. Analyzed proof test data to estimate probability of failure in states of undetected failure.
(Network Reliability):
Developed a methodology for assessing system reliability of large scale multi-terminal networks. Defined reliability of service to individual terminals in a multi-terminal capacity-limited network. Extended methodology for system reliability evaluation to allow efficient evaluation of reliability indices for terminals with fixed priority assignments; developed recursive algorithms for evaluating availability and frequency indices for terminals with arbitrary priority assignments; developed algorithms for approximating both system and terminal indices.
(Software Reliability):
Investigated problems in data analysis for use in software reliability models. Designed an interactive software design assistance tool based on cognitive theories which explain expert design techniques. Investigated problems in software testing; developed methodologies for combining the results obtained from different testing strategies into a unified reliability measure. Explored potential applications of fuzzy set theory and the Delphimethod to problems of incorporating expertise into the software testing process. Performed retrospective analysis of all software errors and recommended methods for improving software quality. Experimentally modified a software development process and showed that the modifications led to improvement in software quality. Performed a study of platform Y2K compliance . Systems EngineeringInvestigated the frequency and time domain characteristics of digital filters whose structure had been derived from analog filters. Developed a modification to a method of approximating the roots of polynomials. Developed an accurate method to find multiple roots of polynomials. Evaluated an existing military mission model to assess its adequacy and developed a protocol for its use that improved its scope of applicability.Sponsored ResearchEvaluation of Software Reliability Models, IBM, (calendar years 1983-1984), Principal Investigator.Software Reliability Research in Design, Testing and Measurements, IBM, (1985-1987), Principal Investigator.Quantifying of the Impacts of Integration on Aircraft Survivability Equipment, IBM, (Summer 1987), Principal Investigator.
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