Failure Rate

(redirected from Hazard rate)
Also found in: Medical.

failure rate

[′fāl·yər ‚rāt]
(engineering)
The probability of failure per unit of time of items in operation; sometimes estimated as a ratio of the number of failures to the accumulated operating time for the items.

Failure Rate

 

the index of dependability of a device that is not subject to repair. Most often it is used to define the dependability of the subassemblies of electronic and automatic systems. In numerical terms the failure rate is equal to the failure probability of the device during a time period beginning at a certain moment provided that no failure has occurred before.


Failure Rate

 

an index of the reliability of repairable tools and machines. The failure rate is defined as the average number of failures of the repairable device per unit of time and varies with time.

References in periodicals archive ?
As expected, in columns 1 and 2, we find that the hazard rate for start-ups is higher than that for incumbents, all else equal.
The estimated hazard rate is statistically significant and consistent with the assumption, implying that the creation of a separate regulatory body in the telecom sector likely to be initiated sooner in a country where political competition for influence in decision-making processes is less restrained with few institutional barriers.
The hazard rate is the continuous probability of failure, that is, the probability of failing in a short period of time h, given the survived time t.
Investigating the impact of variables that include startup size, scale economies and market growth, Mahmood finds that start-up size reduces hazard rate in both types of industries, while presence of scale economies have a positive effect on survival in high tech industries.
The hazard rate for severe cutaneous adverse reactions with allopurinol was 21.
At the start of a study, the distribution function f(t), the survival function S(t), and the hazard rate h(t) are high, while the cumulative hazard rate H(t) is low.
Life tables were used to estimate the day-by-day hazard rate (occurrence of mortality in a specific time interval conditional on survival to the beginning of that interval) for 1-day intervals up to 60 days after surgery.
In the econometric model, the hazard rate that couple i ended their marriage given that they were married up until a given anniversary is described by the following hazard function, [[lambda].
For a dummy variable, the hazard ratio represents the increase in the overall hazard rate facing the firm when the corresponding dummy is equal to one.
As in our study, several other ungulate studies reported the hazard rate key function with various expansions to be the top models (Focardi et al.
For the dataset with 5% truncation, the most parsimonious models were the half-normal with cosine adjustment and the hazard rate with hermite adjustment, and neither model incorporated covariates of basal diameter or number of inflorescences (Table 1).
A central concept is the hazard rate, that is, the probability of occurrence of an event conditional on survival up to that period.