For years, Amazon, a widely known and popular e-commerce enterprise online marketplace, has provided consumers with stress-free, simple approach to shopping. The company offers customers the option order products or on an app have them delivered directly their door in no time at all. Amazon allowed third-party vendors access its site for marketing selling consumers.In recent instances arisen wh...

This study proposes an integrated, reverse logistics supply chain planning process with modular product design that produces and markets products at different quality levels. A mixed integer programming (MIP) model formulates the overall planning process required to maximize profit by considering the collection of returned products, the recovery of modules and the proportion of the product mix ...

Defective products cannot meet the needs of consumers, and they also bring security risks. Prior product weakness detection methods resort to time and money consuming questionnaire, and the accuracy could not be guaranteed. As a result, this paper proposes a novel opinion-aware approach, PRODWeakFinder, which extracts product weaknesses from online reviews through sentiment analysis. PRODWeakFi...

This study uses mathematical modeling to examine a multi-product economic manufacturing quantity (EMQ) model with an enhanced end items issuing policy and rework failures. We assume that a multi-product EMQ model randomly generates nonconforming items. All of the defective are reworked, but a certain portion fails and becomes scraps. When rework process ends and the entire lot of each product i...

We present a model of fixing or patching a software problem after the product has been released in the market. Specifically, we model a software firm’s trade-off in releasing a buggy product early and investments in fixing it later. Just as the marginal cost of producing software can be effectively zero, so can be the marginal cost of repairing multiple copies of defective software by issuing p...

objective: this study was carried out to clarify the potential health-risk and to determinant the prevalence of antenatal rubella infection in north-central, nigeria. materials and methods: a descriptive cross-sectional survey was carried out among pregnant women to establish the knowledge, attitude and practices with regards to antenatal rubella infection in early pregnancy in ilorin. a total ...

Pharmaceutical manufacturers decry the purported burdens imposed by Federal regulation when it suits their proprietary interests, yet they sing a wholly different tune when defending product liability suits. As product liability defendants, they unabashedly seek the protective womb of Food and Drug Administration (FDA) regulation, arguing that agency approval of their drug and its labeling prec...

The main purpose of manufacturing test has been and continues to be to separate good integrated circuits (ICs) from ones that do not meet the desired operational characteristics. An ideal testing procedure should pass all good chips and fail all those that do not deliver the required functionality. However, a defective chip may pass all the tests, which leads to reduction in product quality. Pr...

The challenges of defects in manufacturing and assembly processes optoelectronic industry continue to persist. Defective products cause increased time completion (cycle time), energy consumption, cost, loss precious material. A complex laser process is studied with the aim minimising generation defective modules. Subsequently, relevant data were gathered investigate machine learning artificial ...