Results 31 to 40 of about 1,369 (150)

NHPP Testability Growth Model Considering Testability Growth Effort, Rectifying Delay, and Imperfect Correction

open access: yesIEEE Access, 2020
Over the last several years, many testability growth models (TGMs) have been developed to greatly facilitate engineers and managers in tracking and measuring the growth of testability as system is being improved.
Tianmei Li   +4 more
doaj   +1 more source

A Software Reliability Model with a Weibull Fault Detection Rate Function Subject to Operating Environments

open access: yesApplied Sciences, 2017
When software systems are introduced, these systems are used in field environments that are the same as or close to those used in the development-testing environments; however, they may also be used in many different locations that may differ from the ...
Kwang Yoon Song   +2 more
doaj   +1 more source

Modeling Software Fault-Detection and Fault-Correction Processes by Considering the Dependencies between Fault Amounts

open access: yesApplied Sciences, 2021
Many NHPP software reliability growth models (SRGMs) have been proposed to assess software reliability during the past 40 years, but most of them have focused on modeling the fault detection process (FDP) in two ways: one is to ignore the fault ...
Qiuying Li, Hoang Pham
doaj   +1 more source

An Investigation into Whether the NHPP Framework Is Suitable For Software Reliability Prediction and Estimation

open access: yes, 2014
[[abstract]]Many software reliability growth models (SRGMs) based on non-homogeneous Poisson process (NHPP) framework have been proposed for estimating the reliability growth of products.
C. T. Lin;K. W. Tang;J. R. Chang;C. Y. Huang
core   +1 more source

Parameter Estimation of $M_{t}/M/1/K$ Queueing Systems With Utilization Data

open access: yesIEEE Access, 2019
Utilization data are defined as the time series data consisting of time fractions of busy periods in fixed time intervals and are practically used to represent server conditions, such as CPU utilization. In general, it is more challenging to estimate the
Chen Li, Hiroyuki Okamura, Tadashi Dohi
doaj   +1 more source

The impact of national health promotion policy on stillbirth and maternal mortality in South Africa [PDF]

open access: yes, 2021
OBJECTIVES : In 2015, the South African government implemented the national health promotion policy (NHPP), intending to reduce stillbirth and maternal mortality.
Mostert, Cyprian Mcwayizeni
core   +1 more source

Modeling repairable system failure data using NHPP reliability growth mode. [PDF]

open access: yes, 2023
Stochastic point processes have been widely used to describe the behaviour of repairable systems. The Crow nonhomogeneous Poisson process (NHPP) often known as the Power Law model is regarded as one of the best models for repairable systems. The goodness-
Ofori-Addo, Eunice
core   +1 more source

Software Reliability Growth Model with Dependent Failures and Uncertain Operating Environments

open access: yesApplied Sciences, 2022
Software is used in various industries, and its reliability has become an extremely important issue. For example, in the medical industry, software is used to provide medical services to underprivi-leged individuals. If a problem occurs with the software
Da Hye Lee, In Hong Chang, Hoang Pham
doaj   +1 more source

Seismic Structural Reliability by Time‐Variant Fragility Functions

open access: yesEarthquake Engineering &Structural Dynamics, Volume 55, Issue 11, Page 2669-2674, September 2026.
ABSTRACT The seismic vulnerability of aging structures is often represented in the form of fragility curves that vary with time. On one hand, each of these functions is intended to apply if the earthquake hits at the time the fragility refers to. On the other hand, performance‐based earthquake engineering (PBEE) resources to classical probabilistic ...
Iunio Iervolino
wiley   +1 more source

Altered responses to ghrelin and food cues in AgRP neurons during pregnancy and lactation

open access: yesJournal of Neuroendocrinology, Volume 38, Issue 6, June 2026.
Abstract Pregnancy and lactation trigger many metabolic adaptations, including increased food intake to support the energy demands of the growing foetus and then to provide nutrition through milk production after birth. Ghrelin, an orexigenic hormone, activates agouti related peptide (AgRP) neurons in the arcuate nucleus to promote food intake.
C. L. Murrell   +4 more
wiley   +1 more source

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