Leiharbeit ist die Beschäftigungsform mit dem höchsten Wachstum: Aber die erhofften "Klebeeffekte" von Leiharbeitnehmer/innen in den Einsatzbetrieben sind weitgehend ausgeblieben. Bei steigenden Leiharbeitnehmeranteilen gegenüber "regulärer Stammbeschäftigung", ist Leiharbeit auch...

Purpose: The purpose of this research is to develop an optimization model of CNC turning process. The objective function of the model is to minimize processing time and carbon emission. We implemented the results of optimization with real machining application using a certain workpiece....

Ein zentrales Ergebnis dieser Studie ist, dass die Tarifbindung von Betrieben nicht mit einem Mangel an Betriebszeit- und Arbeitszeitflexibilisierung verbunden ist. Das Gegenteil ist der Fall. In Relation zu den nicht tarifgebundenen Betrieben weisen die tarifgebundenen Betriebe in der für die...

Many studies focus on inventory systems to analyze different real-world situations. This paper considers a two-echelon supply chain that includes one warehouse and one retailer with stochastic demand and an up-to-level policy. The retailer's lead time includes the transportation time from the...

Purpose: This study aimed at implementing lean six sigma to evaluate the productivity and manufacturing waste in the production line of a paper company Methodology/Approach: The study is a case study in nature. The method illustrates how lean six sigma (LSS) is used to evaluate the existing...

In this article, an imperfect vendor-buyer inventory system with stochastic demand, process quality control and learning in production is investigated. It is assumed that there are learning in production and investment for process quality improvement at the vendor's end, and lot-size dependent...

Purpose: This paper aims at investigating the reasons for the complex and long lead time from global suppliers that causes inventory shortages. It focuses on supply chain risk management in global sourcing. This study has revealed all the specific risks of a global sourcing project and has...

This paper aims to prove the efficiency of an adapted computationally intelligence-based behavior of cats called the cat swarm optimization algorithm, that solves the open shop scheduling problem, classified as NP-hard which its importance appears in several industrial and manufacturing...

A single round robin tournament (SRRT) consists of n teams and a set of periods. Matches between the teams have to be scheduled such that each team plays against each other team exactly once and each team plays at most once per period. In order to establish fairness among teams we consider a...