Journal of Reliability and Statistical Studies最新文献_第2页

Cost Optimization and Reliability Parameter Extraction of a Complex Engineering System 复杂工程系统的成本优化与可靠性参数提取

IF 0.8

Journal of Reliability and Statistical Studies Pub Date : 2023-07-27 DOI: 10.13052/jrss0974-8024.1615

Anuj Kumar, Sangeeta Pant, M. Ram

{"title":"Cost Optimization and Reliability Parameter Extraction of a Complex Engineering System","authors":"Anuj Kumar, Sangeeta Pant, M. Ram","doi":"10.13052/jrss0974-8024.1615","DOIUrl":"https://doi.org/10.13052/jrss0974-8024.1615","url":null,"abstract":"Nowadays, the transformation of the various energy system is the core objective of the dedicated sustainable development goal related to energy sustainable world within the new United Nations development agenda. Different nuclear regulatory authorities around the globe, sets Technical Specifications (TSs) for ensuring the human and environmental safety of various highly volatile and complex Nuclear Power Generation Plants (NPGPs). TSs define numerous measures and limitations related to safety and sustainability that must be followed by all NPGPs around the world. Reliability, availability and cost components associated with a NPGPs form important bases for the setting of TSs. In this work, a framework based on few recent metaheuristics like Cuckoo Search Algorithm (CSA), Grey Wolf Optimizer (GWO), Hybrid PSO GWO algorithm (HPSOGWO) has been presented for cost optimization and reliability parameter extraction of a complex engineering system named Heat Removal System (HRS) of a nuclear power generation plant safety system (NPGPSS). A multi-criteria decision-making (MCDM) method named Weighted-Sum Method (WSM) has also been employed for prioritizing the available metaheuristics based on available beneficial and non-beneficial criteria’s.","PeriodicalId":42526,"journal":{"name":"Journal of Reliability and Statistical Studies","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49246615","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

System Reliability Analysis of Large Capacity Electric Mining Trucks Used in Coal Mining 煤矿用大容量矿用电动卡车系统可靠性分析

IF 0.8

Journal of Reliability and Statistical Studies Pub Date : 2023-07-11 DOI: 10.13052/jrss0974-8024.1614

Sedat Toraman

{"title":"System Reliability Analysis of Large Capacity Electric Mining Trucks Used in Coal Mining","authors":"Sedat Toraman","doi":"10.13052/jrss0974-8024.1614","DOIUrl":"https://doi.org/10.13052/jrss0974-8024.1614","url":null,"abstract":"In today’s world where competition is increasing, the focus of all efforts on meeting production targets at the lowest possible cost has increased the need for maximum benefit from existing machinery/equipment. In this context, availability, reliability and maintainability analysis have become the basic tools to be used in meeting this need.\u0000In this study, reliability, maintainability and availability values were determined using the operation and repair data (2019) of large capacity electric trucks used in the Manisa-Soma coal field. First of all, each truck was analyzed and then the analysis of the entire truck system was performed. In this context, RAM analysis of all trucks was performed and then the general reliability of the entire truck system was calculated by considering the working order in the enterprise. According to this; The truck with the highest reliability is the truck with door number 555 and the reliability rate is 77.04%, and the truck with the lowest reliability is the truck number 556 with a rate of 26.31%. As a result of the maintainability analysis, the truck with the 553 door number had the highest maintainability with a rate of 73.52%. The truck numbered 549 has the lowest maintainability rate with a rate of 42.21%. As a result of the system analysis, the reliability rate was determined as 24% in R (1000) minutes, 59% in R (500) minutes and 83% in R (250) minutes.","PeriodicalId":42526,"journal":{"name":"Journal of Reliability and Statistical Studies","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43308733","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

On a Statistical Model Useful for Demographics: Estimating the Mean Number of Children Ever Born Through the Distribution of Male Births with an Application to Data from India 关于一个对人口统计有用的统计模型：通过男性出生率分布估计平均出生儿童数——应用于印度的数据

IF 0.8

Journal of Reliability and Statistical Studies Pub Date : 2023-06-21 DOI: 10.13052/jrss0974-8024.1613

Shubhagata Roy, Prayas Sharma, K. K. Singh, R. Srivastava

{"title":"On a Statistical Model Useful for Demographics: Estimating the Mean Number of Children Ever Born Through the Distribution of Male Births with an Application to Data from India","authors":"Shubhagata Roy, Prayas Sharma, K. K. Singh, R. Srivastava","doi":"10.13052/jrss0974-8024.1613","DOIUrl":"https://doi.org/10.13052/jrss0974-8024.1613","url":null,"abstract":"The connection between male births and fertility can be easily linked with demographic transition and in defining the population distribution. In this context, it is necessary to understand the birth patterns in Indian societies which are governed by some or the other probability distributions. Although child birth is a biological process but it is very much influenced by a number of social, economic, cultural and psychological factors. Numerous demographers have proposed mathematical models to predict the number of male and female births during a given time period taking into consideration the various factors. Traditionally, estimating current levels and future trends of mean number of births is done using various life tables, cohort-component method, time-series analysis, micro-simulations, structural modeling, expert analysis, historical error analysis and also using an appropriate probability model and testing the model on real data. In the present study we developed a model for estimating the mean number of children ever born through the join probability distribution with its application for male births among the females of Uttar Pradesh and Bihar. The reasons of selecting these two states were their huge population and high total fertility rates. The model fits to the data of these two states, therefore it would be a good fit for the other states too, which shows the efficiency and applicability of the model. The applicability of this model has been illustrated on real data obtained from the National Family Health Survey-3 (2005–06). The various estimates of the parameters have been obtained by using the method of moments and suitability of the proposed model has been tested using the ‘goodness of fit’ criteria.","PeriodicalId":42526,"journal":{"name":"Journal of Reliability and Statistical Studies","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47986837","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

Reliability Structures Consisting of Weighted Components: Synopsis and New Advances 加权分量可靠性结构:综述与新进展

IF 0.8

Journal of Reliability and Statistical Studies Pub Date : 2023-05-17 DOI: 10.13052/jrss0974-8024.1612

I. Triantafyllou

引用次数: 2

A Bayesian Approach to Weibull Distribution with Application to Insurance Claims Data 威布尔分布的贝叶斯方法及其在保险索赔数据中的应用

IF 0.8

Journal of Reliability and Statistical Studies Pub Date : 2023-05-15 DOI: 10.13052/jrss0974-8024.1611

H. Abubakar, Shamsul Rijal Muhammad Sabri

{"title":"A Bayesian Approach to Weibull Distribution with Application to Insurance Claims Data","authors":"H. Abubakar, Shamsul Rijal Muhammad Sabri","doi":"10.13052/jrss0974-8024.1611","DOIUrl":"https://doi.org/10.13052/jrss0974-8024.1611","url":null,"abstract":"Statistical distributions are of great interest for actuaries in modelling and fitting the distribution of various data sets. It can be used to present a description of risk exposure on the investment, where the level of exposure to the risk can be determined by “key risk indicators” that usually are functions of the statistical model. Financial mathematicians and actuarial scientists often use such key risk indicators to determine the degree to which a particular company is subject to certain aspects of risk, which arise from changes in underlying variables such as prices of equity, interest rates fluctuations, or exchange rates. Weibull distribution is one of the most popular statistical distribution models employed by the actuarial and financial risk management problems in fitting and or in modelling the behaviours of financial data or lifetime event data to forecast stock pricing movement or uncertainly prediction. In this study, a Bayesian approach to the Weibull distribution model on the assumption of gamma prior to Weibull distribution parameters has been proposed. A computational study based on the actuarial measures is conducted, proving the proposed distribution of the claim amount. Along this line, in assessing the performance of the proposed method, the results of the simulations study have been conducted to explore the efficiency of the proposed estimators is compared to a maximum likelihood (MLE) and simulated annealing algorithm (SA). Finally, an actuarial real data set is analyzed, proving that the proposed model can be used effectively to model insurance claim data.","PeriodicalId":42526,"journal":{"name":"Journal of Reliability and Statistical Studies","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45492479","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

Performance Analysis of Continuous Casting System of Steel Industry 钢铁工业连铸系统性能分析

IF 0.8

Journal of Reliability and Statistical Studies Pub Date : 2023-04-06 DOI: 10.13052/jrss0974-8024.15212

Sapna Saini, J. Kumar, M. S. Kadyan

{"title":"Performance Analysis of Continuous Casting System of Steel Industry","authors":"Sapna Saini, J. Kumar, M. S. Kadyan","doi":"10.13052/jrss0974-8024.15212","DOIUrl":"https://doi.org/10.13052/jrss0974-8024.15212","url":null,"abstract":"The continuous casting system is the most important to solidify the liquid steel in the steel industry. Steel is the backbone of civilization and modernization. So, there is a need to optimize the performance of continuous casting system of steel industry. Continuous casting system has six subsystems: “Pouring turret ladle”, “Tundish”, “Mold”, “Water spray chamber”, “Support roller” and “Torch cutter”. Series configuration is used to arrange these subsystems. The subsystem “Pouring turret ladle” is having three similar units. These units are operating in parallel. The subsystems “Tundish”, “Mold”, “Water spray chamber” and “Support roller” have a single unit. The subsystem “Torch cutter” contains two identical units: one is operative and other keep in cold standby. For all subsystems, the distribution of repair rates and failure rates of continuous casting system are taken as arbitrary distributions. Analysis of continuous casting system has been done by using supplementary variable technique. The numerical results of reliability measure of continuous casting system in terms of availability and profit have been computed by assuming exponential, Rayleigh and Weibull distributions.","PeriodicalId":42526,"journal":{"name":"Journal of Reliability and Statistical Studies","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2023-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42612123","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

A Semi-parametric NHPP-based Software Reliability Modeling with Local Polynomial Debug Rate 基于局部多项式调试率的半参数nhpp软件可靠性建模

IF 0.8

Journal of Reliability and Statistical Studies Pub Date : 2023-04-06 DOI: 10.13052/jrss0974-8024.15215

Siqiao Li, T. Dohi, H. Okamura

引用次数: 0

Reliability Index of Simply Supported Beam Based on HL Method 基于HL法的简支梁可靠性指标研究

IF 0.8

Journal of Reliability and Statistical Studies Pub Date : 2023-04-06 DOI: 10.13052/jrss0974-8024.15214

M. Devi, T. Sumathi, Uma Maheshwari, A. Satyanarayana

引用次数: 0

Accelerated Failure Time Models with Applications to Endometrial Cancer Survival Data 加速失效时间模型在子宫内膜癌生存数据中的应用