Quality Technology & Quantitative Management最新文献_第4页

Modeling left-truncated degradation data using random drift-diffusion Wiener processes 用随机漂移-扩散维纳过程建模左截断退化数据

Quality Technology & Quantitative Management Pub Date : 2023-03-15 DOI: 10.1080/16843703.2023.2187011

B. Yan, Han Wang, Xiaobing Ma

引用次数: 0

Inference for reliability in a multicomponent stress–strength model for a unit inverse Weibull distribution under type-II censoring ii型截尾下单位逆威布尔分布的多分量应力-强度模型的可靠性推断

Quality Technology & Quantitative Management Pub Date : 2023-02-27 DOI: 10.1080/16843703.2023.2177811

Kundan Singh, Amulya Kumar Mahto, Y. Tripathi, Liang Wang

引用次数: 0

Reliability estimation of a consecutive k-out-of-n system for non-identical strength components with applications to wind speed data 具有风速数据应用的非相同强度部件连续k-out- n系统的可靠性估计

Quality Technology & Quantitative Management Pub Date : 2023-02-25 DOI: 10.1080/16843703.2023.2173426

Duygu Demiray, Fatih Kızılaslan

{"title":"Reliability estimation of a consecutive k-out-of-n system for non-identical strength components with applications to wind speed data","authors":"Duygu Demiray, Fatih Kızılaslan","doi":"10.1080/16843703.2023.2173426","DOIUrl":"https://doi.org/10.1080/16843703.2023.2173426","url":null,"abstract":"ABSTRACT In the stress-strength reliability literature, although identical components assumption may not be realistic due to the structure of a system, independent and identically distributed components have been commonly used. In this study, we aim to contribute to the literature by studying of non-identical distributed components in a consecutive -out of- system when both stress and strength components follow the proportional hazard rate models. Estimation methods for the stress-strength reliability of this system are investigated from frequentist and Bayesian perspectives. Maximum likelihood and uniformly minimum variance unbiased estimations are obtained in the frequentist approach. Based on the suitability of the structure, approximate Bayes estimates methods: Lindley’s approximation, Markov Chain Monte Carlo through Metropolis-Hastings or Gibbs sampling algorithms and exact Bayes estimates are derived. Asymptotic confidence and highest posterior density credible intervals are also constructed for all cases. We provide comprehensive simulation experiments for investigating the performances of the considered estimates. Wind speed data from NASA’s satellite data source project are used in the application of the considered model and methods. We present the comparison of wind energy potentials of two districts on the Aegean coast of Turkey using our model structure after determining their wind speed distributions.","PeriodicalId":229439,"journal":{"name":"Quality Technology & Quantitative Management","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133533324","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Variable sample size and sampling interval (VSSI) and variable parameters (VP) run sum charts for the coefficient of variation 变样本量和抽样间隔(VSSI)和变参数(VP)运行和图为变异系数

Quality Technology & Quantitative Management Pub Date : 2023-02-20 DOI: 10.1080/16843703.2023.2177812

W. C. Yeong, Yen Yoon Tan, Sok Li Lim, K. W. Khaw, M. Khoo

引用次数: 2

Bivariate replacement policy for a system subject to shocks 受冲击系统的二元替换策略

Quality Technology & Quantitative Management Pub Date : 2023-01-21 DOI: 10.1080/16843703.2023.2165287

S. Sheu, Tzu-Hsin Liu, Wei-Teng Sheu, J. Ke, Zhe-George Zhang

{"title":"Bivariate replacement policy for a system subject to shocks","authors":"S. Sheu, Tzu-Hsin Liu, Wei-Teng Sheu, J. Ke, Zhe-George Zhang","doi":"10.1080/16843703.2023.2165287","DOIUrl":"https://doi.org/10.1080/16843703.2023.2165287","url":null,"abstract":"ABSTRACT A bivariate replacement policy for a two-unit system under the shock-effect is studied. Unit 1 is subject to one of the two types of shocks. A type 1 shock causes a minor failure of unit 1, while a type 2 shock makes a catastrophic failure of unit 1. The probabilities of the shock types depend on the number of shocks since the last replacement. Each minor failure of unit 1 brings some cumulative damage to unit 2. When the cumulative damage of unit 2 reaches L, unit 2 fails, which simultaneously causes the failure of unit 1, resulting in a catastrophic failure of system. Moreover, unit 2 with cumulative damage x has a minor failure with probability at unit 1 failure instant, and this failure is removed by a minimal repair. A more general replacement policy is considered, in which the system is replaced when the cumulative damage to unit 2 has reached l (≤ L), or the nth type 1 shock occurs, or when type 2 shock occurs or the accumulative damage to unit 2 exceeds L, whichever comes first. The expression for average cost rate is developed and the corresponding optimal policy is determined analytically and numerically.","PeriodicalId":229439,"journal":{"name":"Quality Technology & Quantitative Management","volume":"118 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116505997","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Interval-valued availability of a standby system with imperfect switch incorporating uncertainty & multiple failure modes 包含不确定性和多故障模式的不完全开关备用系统的间隔值可用性

Quality Technology & Quantitative Management Pub Date : 2023-01-08 DOI: 10.1080/16843703.2023.2165288

Amisha Khati, S.B. Singh

引用次数: 0

Real-time profile monitoring schemes considering covariates using Gaussian process via sensor data 基于高斯过程的基于传感器数据的考虑协变量的剖面实时监测方案

Quality Technology & Quantitative Management Pub Date : 2023-01-08 DOI: 10.1080/16843703.2023.2165284

Ning Ding, Zhen He, Shuguang He, Lisha Song

引用次数: 2

Concurrent optimization of parameter and tolerance design based on the two-stage Bayesian sampling method 基于两阶段贝叶斯抽样法的参数与公差设计并行优化

Quality Technology & Quantitative Management Pub Date : 2023-01-06 DOI: 10.1080/16843703.2023.2165290

Yan Ma, Jianjun Wang, Yiliu (Paul) Tu

{"title":"Concurrent optimization of parameter and tolerance design based on the two-stage Bayesian sampling method","authors":"Yan Ma, Jianjun Wang, Yiliu (Paul) Tu","doi":"10.1080/16843703.2023.2165290","DOIUrl":"https://doi.org/10.1080/16843703.2023.2165290","url":null,"abstract":"ABSTRACT Researchers usually expect to reduce costs while improving product robustness in product quality design. The concurrent optimization of parameter and tolerance design assumes that the output response follows a normal distribution. However, non-normal responses are also common in product quality design. As for the concurrent optimization of parameter and tolerance design with a non-normal response, a novel total cost function based on the two-stage Bayesian sampling method is proposed in this paper. First, the hierarchical Bayesian model constructs the functional relationship between output response, input factors, and tolerance variables. Secondly, a two-stage Bayesian sampling method is used to obtain the simulated values of the output responses. The simulated response values are used to build the rejection cost and quality loss functions. Then, the genetic algorithm is used to optimize the constructed total cost model, including the tolerance cost, rejection cost, and quality loss. Finally, the effectiveness of the proposed method is demonstrated by two examples. The research results show that the proposed method in this paper can effectively improve product quality and reduce manufacturing costs when considering the uncertainty of model parameters and the variation of the output response.","PeriodicalId":229439,"journal":{"name":"Quality Technology & Quantitative Management","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116168147","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Equilibrium and social optimality in queues with service rate and customers’ joining decisions 具有服务率和顾客加入决策的队列的均衡与社会最优性

Quality Technology & Quantitative Management Pub Date : 2022-12-26 DOI: 10.1080/16843703.2022.2157695

R. Tian, Siping Su, Z. Zhang

{"title":"Equilibrium and social optimality in queues with service rate and customers’ joining decisions","authors":"R. Tian, Siping Su, Z. Zhang","doi":"10.1080/16843703.2022.2157695","DOIUrl":"https://doi.org/10.1080/16843703.2022.2157695","url":null,"abstract":"ABSTRACT This paper treats a single server Markovian queueing system with changeable service rates and customer choice. When a customer arrives at an empty system, he is served by the server at a low service rate. This low service rate continues until the queue length reaches a threshold. Then the server switches to a high service rate to serve customers who join the system. The high service rate continues until the system becomes empty and a low service rate starts again. Under a service reward and waiting cost structure, customers decide to join or to balk based on their net utility of joining the system. The customers’ equilibrium and socially optimal joining strategies are studied under two information scenarios which are observable and unobservable queues, respectively. Such a model fits a stochastic service system where the server can make his service rate decision and customers can make their joining or baking decisions and thus has wide applications in service industries. Our focus is on examining the equilibrium performance of the queue under the interaction between the server’s service rate and customers’ joining decisions. We develop the steady-state distribution and performance measures of the system by formulating two-dimensional continuous-time Markov chains.","PeriodicalId":229439,"journal":{"name":"Quality Technology & Quantitative Management","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114406245","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Quality Technology &amp; Quantitative Management最新文献

Quality Technology & Quantitative Management最新文献