scholarly journals Quality Inspection Plan for Imperfect Production System with Assembly Configuration

Processes ◽  
2020 ◽  
Vol 8 (12) ◽  
pp. 1545
Author(s):  
Jyh-Wen Ho
Keyword(s):  
Production System ◽  
Negative Binomial ◽  
Optimal Number ◽  
Imperfect Production ◽  
Sampling Inspection ◽  
Inspection Plan ◽  
Proposed Model ◽  
Deteriorating Process ◽  
Control State ◽  
Working Efficiency

In this study, the model concerning a negative binomial sampling inspection plan is proposed and applied to an imperfect production system with assemble-to-order configuration, where the production system is subject to a Weibull deteriorating process and is operated under an in-control or an out-of-control state. The proposed model of this study contributes to developing an approach which can effectively integrate the considerations of the production system status, the defective rate, the working efficiency of employees, and the market demands with an aim to determine the optimal number of conforming items for inspection with minimum total cost, and the results can be practically applied to the assembly of products in various industries, especially for the prevalent Industry 4.0 in manufacturing.

scholarly journals Transition models for count data: a flexible alternative to fixed distribution models

2021 ◽  
Author(s):  
Moritz Berger ◽  
Gerhard Tutz
Keyword(s):  
Count Data ◽  
Regression Models ◽  
Negative Binomial ◽  
Real Data ◽  
Distribution Models ◽  
Explanatory Variables ◽  
Excess Zeros ◽  
Proposed Model ◽  
Transition Models ◽  
Fixed Distribution

AbstractA flexible semiparametric class of models is introduced that offers an alternative to classical regression models for count data as the Poisson and Negative Binomial model, as well as to more general models accounting for excess zeros that are also based on fixed distributional assumptions. The model allows that the data itself determine the distribution of the response variable, but, in its basic form, uses a parametric term that specifies the effect of explanatory variables. In addition, an extended version is considered, in which the effects of covariates are specified nonparametrically. The proposed model and traditional models are compared in simulations and by utilizing several real data applications from the area of health and social science.

scholarly journals Minimax solution of sampling inspection plan

1956 ◽  
Vol 01 (4) ◽  
pp. 296-314
Author(s):  
Miloslav Jiřina ◽  
Jiří Nedoma
Keyword(s):  
Minimax Solution ◽  
Sampling Inspection ◽  
Inspection Plan

scholarly journals Optimization of the Mashaer Shuttle-Bus Service in Hajj: Arafat-Muzdalifah Case Study

Information ◽  
2021 ◽  
Vol 12 (12) ◽  
pp. 496
Author(s):  
Omar Hussain ◽  
Emad Felemban ◽  
Faizan Ur Rehman
Keyword(s):  
Optimal Number ◽  
Improve Performance ◽  
Large Numbers ◽  
Proposed Model ◽  
Holy Places ◽  
Essential Form ◽  
Service Delays ◽  
Customer Dissatisfaction ◽  
Bus Service

Hajj, the fifth pillar of Islam, is held annually in the month of Dhul Al-Hijjah, the twelfth month, in the Islamic calendar. Pilgrims travel to Makkah and its neighbouring areas—Mina, Muzdalifah, and Arafat. Annually, about 2.5 million pilgrims perform spatiotemporally restricted rituals in these holy places that they must execute to fulfil the pilgrimage. These restrictions make the task of transportation in Hajj a big challenge. The shuttle bus service is an essential form of transport during Hajj due to its easy availability at all stages and ability to transport large numbers. The current shuttle service suffers from operational problems; this can be deduced from the service delays and customer dissatisfaction with the service. This study provides a system to help in planning the operation of the service for one of the Hajj Establishments to improve performance by determining the optimal number of buses and cycles required for each office in the Establishment. We will also present a case study in which the proposed model was applied to the non-Arab Africa Establishment shuttle service. At the same time, we will include the mechanism for extracting the information required in the tested model from the considerably large GPS data of 20,000+ buses in Hajj 2018.

Sign in / Sign up

Export Citation Format

Share Document