Online ratings impose significant effects on the behaviors of potential customers. Thus, online merchants try to adopt strategies that affect this rating behavior, and most of these strategies are connected to money, such as the strategies of returning cash coupons if a consumer gives a five-star rating (RI strategy, an acronym for "returning" and "if") or returning cash coupons directly with n...

This paper is concerned with joint determination of the optimal lot size and optimal number of shipments for an economic production quantity (EPQ) model with the reworking of random defective items produced. The classic EPQ model assumes a continuous issuing policy for satisfying product demand and perfect quality production for all items produced. However, in a real life vendor-buyer integrate...

this paper deals with the single machine multi-product lot scheduling problem in which defective items are produced in any production run of each product. we have adopted the common cycle scheduling policy and assumed that the setup times for production of each product can be non-zero. further, we have assumed that defective items will be reworked and the inspection costs during the normal prod...

Semen evaluation via traditional light microscopy provides useful information about sperm motility and morphology, yet it has a limited utility in predicting reproductive performance due to its subjective nature and inconsistency among technicians and laboratories. Furthermore, not all sperm abnormalities are detectable with standard light microscopy. As a result, flow cytometric evaluation usi...

In the classical inventory models, most of the time the issue of quality of the items has not been given due attention. However, in realistic environment, it can be observed that there may be some defective items in an ordered lot, because of these defective items retailer may incurs additional cost due to rejection, repair and refund etc. Thus, inspection/screening of lot becomes essential in ...

Abstract The manufacture of In Vitro Fertilization (IVF) needles is subject to the most stringent quality demands. This makes automated inspection challenging due difficulty in reliably classifying conforming and non-conforming (defective) products factors including multidimensional variation their tip geometry lack an explicit standard. addition, developing IVF needle image dataset, which broa...

  Multistage process monitoring has recently attracted notable attention in that the statistical relationships between quality variables are taken into account. Here, we dealt with the problem of monitoring and diagnosing a two-stage production process with attribute characteristics in which the outgoing quality variable is impacted by the incoming quality variable from the first process stage....

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 accurate biogenesis of RNA-protein complexes is a key aspect of eukaryotic cells. Defects in Sm protein complex binding to snRNAs are known to reduce levels of snRNAs, suggesting an unknown quality control system for small nuclear ribonucleoprotein (snRNP) assembly. snRNA quality control may also be relevant in spinal muscular atrophy, which is caused by defects in the survival motor neuron...

BACKGROUND Recommended phantom-based quality assurance measurements in B-mode ultrasound (US) may be tedious. For the purpose of cost-effective US quality assurance it is important to evaluate measurements that effectively reflect the quality of US scanner. PURPOSE To find out which recommended phantom-based quality assurance measurements are effective in detecting dead or weak transducer ele...