By Topic

IEEE Transactions on Reliability

Issue 2 • Date Jun 1994

Filter Results

Displaying Results 1 - 25 of 25
  • Simulation of hot-carrier induced MOS circuit degradation for VLSI reliability analysis

    Publication Year: 1994, Page(s):197 - 206
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (824 KB)

    A new integrated simulation tool is presented for estimating the hot-carrier induced degradation of nMOS transistor characteristics and circuit performance. This reliability simulation tool incorporates: (1) an accurate 1-dimensional MOSFET model for representing the electrical behavior of locally damaged transistors; and (2) physical models for both fundamental device-degradation mechanisms (char... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Optimal design of large software-systems using N-version programming

    Publication Year: 1994, Page(s):344 - 350
    Cited by:  Papers (25)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (488 KB)

    Fault tolerant software uses redundancy to improve reliability; but such redundancy requires additional resources and tends to be costly, therefore the redundancy level needs to be optimized. Our optimization models determine the optimal level of redundancy within a software system under the assumption that functionally equivalent software components fail independently. A framework illustrates the... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Results of a pilot-survey about reliability-task effectiveness

    Publication Year: 1994, Page(s):193 - 196
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (340 KB)

    Seventy electronic manufacturers (with at least 100 employees) in the northwest USA were contacted in 1990 September with the intent of measuring their perception of reliability-task effectiveness. There were 17 competent respondents; they rated the effectiveness of 26 reliability tasks; the highest rating (from top to third) were for development testing, failure reporting and corrective action, d... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Interval-availability distribution of 2-state systems with exponential failures and phase-type repairs

    Publication Year: 1994, Page(s):335 - 343
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (432 KB)

    Interval availability is a dependability measure defined as the fraction of time during which a system is in operation over a finite observation period. Usually, for computing systems, the models used to evaluate interval availability distribution are Markov models. Numerous papers using these models have been published, and only complex numerical methods have been proposed as solutions to this pr... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Bayes stopping rules for reliability testing with the exponential distribution

    Publication Year: 1994, Page(s):288 - 293
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (476 KB)

    These rules for terminating testing involve achieving specified levels of credibility in both: (1) the probability of the posterior estimate of the exponential scale-parameter, θ, after some, m, of the units have been tested, and (2) the mean of the probability of θ over the remaining units, when viewed pessimistically. Sample decision tables and a numerical example illustrate both the... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Failure mechanism models for electromigration

    Publication Year: 1994, Page(s):186 - 192
    Cited by:  Papers (46)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (624 KB)

    This tutorial illustrates situations where electromigration (a wearout failure mechanism) in electronic devices can degrade performance. Electromigration and its relation to microstructure is discussed. Temperature considerations are treated. A practical model for electromigration and two application examples of it are given. Qualitative design procedures for avoiding solid-state electromigration ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The effect of compensating faults models on NMR system reliability

    Publication Year: 1994, Page(s):294 - 300
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (384 KB)

    Realistic estimates of the reliability of systems with N-tuple modular redundancy (NMR), must consider the effect of compensation of logic faults. Earlier analyses that include compensating faults are impractical to use, yield very complex mathematical formulas for reliability indices, and/or concern the simplest triple modular redundancy (TMR) system only. This paper gives a general approach to t... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Availability for repairable components and series systems

    Publication Year: 1994, Page(s):329 - 334
    Cited by:  Papers (19)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (352 KB)

    The failure pattern of repairable components is often modelled by an alternating renewal process which implies that a failed component is perfectly repaired. In practice, repair is often imperfect. This paper proposes a generalized availability model for repairable components and series systems. The lifetime of a repaired component has a general distribution which can be different from that of a n... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Order-P: an algorithm to order network partitionings

    Publication Year: 1994, Page(s):310 - 320
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (864 KB)

    A network partitioning occurs when failures fragment the network into at least 2 sub-networks. This causes the network performance to degrade; many techniques have been proposed to combat this degradation. The number of possible partitionings in a fully connected network of n nodes is greater than 2'', for large n. Thus, analysis of partitioning-resilient algorithms is extremely difficult due to t... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A general linear-regression analysis applied to the 3-parameter Weibull distribution

    Publication Year: 1994, Page(s):255 - 263
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (728 KB)

    The conventional techniques of linear regression analysis (linear least squares) applied to the 3-parameter Weibull distribution are extended (not modified), and new techniques are developed for the 3-parameter Weibull distribution. The three pragmatic estimation methods in this paper are simple, accurate, flexible, and powerful in dealing with difficult problems such as estimates of the 3 paramet... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Reliability indices for electric-power wheeling

    Publication Year: 1994, Page(s):207 - 209
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (204 KB)

    Transmission networks are being used more extensively to accommodate energy transactions that use the economic benefits of pooling. This paper evaluates the probabilistic wheeling capability of an interconnected power transmission system. Large electric power wheeling can degrade the reliability of the electric power network. This problem is also important for power system control and planning pur... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Prediction intervals for an ordered observation from a Pareto distribution

    Publication Year: 1994, Page(s):264 - 269
    Cited by:  Papers (14)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (428 KB)

    The prediction of future ordered observations shows how long a sample of units might run until all fail in life testing. This paper presents the prediction intervals on future ordered-observations in a sample of size n from a Pareto distribution with known shape parameter where the first k ordered observations have been observed. A useful method is defined for obtaining a bound on life-test durati... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • More goodness-of-fit tests for the power-law process

    Publication Year: 1994, Page(s):275 - 278
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (256 KB)

    The power-law process is often used as a model for reliability growth of complex systems or for reliability of repairable systems. There are many results on estimation and hypothesis testing concerning parameters of the power-law process. Goodness-of-fit tests for the power-law process were presented in Park & Kim (1992) using Kolmogorov-Smirnov, Cramer-von Mises, and Anderson-Darling statisti... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Reliability of augmented tree networks under pin-out constraints

    Publication Year: 1994, Page(s):321 - 326
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (424 KB)

    The binary tree network provides a cost-efficient topology for parallel computers. However, its poor reliability makes it unattractive for applications that demand high reliability. This has motivated consideration of several augmented tree networks, but these networks offer increased reliability at the expense of increased node fanout. This paper studies 2 augmented tree networks that achieve hig... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Inference life-models of electrical insulating materials by using a Kalman filter

    Publication Year: 1994, Page(s):210 - 216
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (504 KB)

    A Kalman filter is applied to life tests for characterizing electrical or thermal endurance of electrical insulating materials. This recursive estimator provides updated life model parameter values after each life test. The life models are: (1) inverse power law and the exponential law, used for electrical or multi-stress ageing; and (2) Arrhenius model, used for thermal ageing. The state, predict... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Large-sample estimation of reliability under the exponential distribution in life testing

    Publication Year: 1994, Page(s):270 - 274
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (276 KB)

    The exact formula for the variance of the uniformly minimum variance unbiased estimator (UMVUE) of the reliability function, R(t), for exponential life is quite cumbersome. A simple expression for the asymptotic variance of the UMVUE of R(t) is found. Interval estimates of R(t) are also constructed. By comparing the approximations to the exact values in several configurations of sample size and po... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Systematic Bayes prior-assignment by coupling the mini-max entropy and moment-matching methods

    Publication Year: 1994, Page(s):279 - 287
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (632 KB)

    The prior is chosen somewhat conservatively, but not arbitrarily, in Bayes analysis for the event whose characteristics are not well understood. It is desirable to get the prior through an objective procedure for the given information. The author's approach of assigning the pre-prior is by coupling the principle of maximum entropy with the moment-matching method; i.e., to find upper and lower boun... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • An algorithm for computing the reliability of weighted-k-out-of-n systems

    Publication Year: 1994, Page(s):327 - 328
    Cited by:  Papers (71)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (112 KB)

    This paper constructs a new k-out-of-n model, viz, a weighted-k-out-of-n system, which has n components, each with its own positive integer weight (total system weight=w), such that the system is good (failed) if the total weight of good (failed) components is at least k. The reliability of the weighted-k-out-of-n:G system is the complement of the unreliability of a weighted-(w-k+1)-out-of-n:F sys... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Perspective on Weibull proportional-hazards models

    Publication Year: 1994, Page(s):217 - 223
    Cited by:  Papers (18)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (432 KB)

    This note uses a paper of Elsayed & Chan (1990) to illustrate some of the advantages and some of the limitations of the proportional hazards approach. The role of proportional hazards as one of several tools for exploratory data analysis is described. The emphasis is on exploratory techniques as a way of: (1) measuring the importance of factors influencing system behavior; and (2) determining ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Phased-mission system reliability under Markov environment

    Publication Year: 1994, Page(s):301 - 309
    Cited by:  Papers (44)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (500 KB)

    The authors show how to determine the reliability of a multi-phase mission system whose configuration changes during consecutive time periods, assuming failure and repair times of components are exponentially distributed and redundant components are repairable as long as the system is operational. The mission reliability is obtained for 3 cases, based on a Markov model. (1) Phase durations are det... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Classification of life distributions in multivariate models

    Publication Year: 1994, Page(s):224 - 229
    Cited by:  Papers (13)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (356 KB)

    In reliability theory, lifetimes of systems and components are frequently studied through univariate concepts of ageing. By considering suitable multivariate generalizations of the univariate ageing properties, some multivariate ageing classes of life distributions are defined. Properties of these classes with their equivalent definitions and chain of implications are presented along with a few ch... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Comparison of the cumulative-hazard and Kaplan-Meier estimators of the survivor function

    Publication Year: 1994, Page(s):230 - 232
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (176 KB)

    When both the product-limit (Kaplan-Meier) and the cumulative-hazard estimates of the Sf are calculated for the same data set, the survival probabilities obtained using the cumulative hazard approach are generally slightly larger than the ones obtained using the product-limit (Kaplan-Meier) approach. This heuristic inter-relation can not be specific to particular data sets; thus this paper shows t... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Tests of univariate and bivariate stochastic ageing

    Publication Year: 1994, Page(s):233 - 241
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (580 KB)

    Concepts of ageing describe how a population of units or systems improves or deteriorates with age. Many classes of life distributions are categorized and defined in the literature according to their ageing properties. An important aspect of such classifications is that the exponential distribution is nearly always a member of each class. The notion of stochastic ageing is important in any reliabi... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Generalized multistate monotone coherent systems

    Publication Year: 1994, Page(s):242 - 250
    Cited by:  Papers (20)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (592 KB)

    Most available models for multistate coherent systems (MCS) assume that the state sets of the system and its components are totally ordered-an assumption that greatly limits the application of the usual MCS models. This paper presents a new MCS model-a generalized multistate coherent system (GMCS) model-which assumes, more generally, that the state sets of the system and its components are partial... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Optimal design of systems with competing failure modes

    Publication Year: 1994, Page(s):251 - 254
    Cited by:  Papers (14)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (236 KB)

    Consider the problem of achieving optimal system size, n, and threshold value, k, for {k, n-k+1}-out-of-n and majority systems with competing failure modes. Components are s-independent and identically distributed, and the two system failure modes can have different costs. The authors determine optimal k, given n; optimal n, given k; and optimal k,n. Optimal implies minimum mean system cost for th... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.

Aims & Scope

IEEE Transactions on Reliability is concerned with the problems involved in attaining reliability, maintaining it through the life of the system or device, and measuring it.

Full Aims & Scope

Meet Our Editors

Editor-in-Chief
W. Eric Wong
University of Texas at Dallas
Advanced Res Ctr for Software Testing and Quality Assurance

ewong@utdallas.edu