• IJIEM

Mathematical Modeling for Paper Stock Drainage at Hydrofoils of Wire Part of Paper Making Machine (pp. 27-31)

Pavel Kaurov, Nikolay Kokushin, Aleksey Tikhonov
The mathematical model of paper stock dewatering at hydrofoils based on strict attention to physics of the processes is elaborated. Initial inspection of the developed mathematical model is executed by comparing the data, obtained by calculation with taking into account the deflection of the forming fabric, with the experimental data on the distribution of vacuum in the wedge of hydrofoils. The method for determining the flexure stiffness of forming fabrics is developed. The results of experimental determining of the filtration coefficient with consideration of three-phase state of paper stock are given. The calculated data of concentration of paper stock on wet end have a good agreement with experimental data. The method of calculating the paper stock drainage is developed and experimentally verified.

Штампа Ел. пошта

Lean Manufacturing Implementation Problems in Beverage Production Systems (pp. 21-26)

Ivica Veža, Nikola Gjeldum, Luka Celent
For production companies, it is very important to keep their production processes efficient. Huge competition and continuously changing market demands require constant improvements of company’s business. Lean manufacturing is a production practice that considers the expenditure of resources for any goal other than the creation of value for the end customer to be wasteful, and thus a target for elimination. Working from the perspective of the customer who consumes a product or service, "value" is defined as any action or process that a customer would be willing to pay for. Lean manufacturing is a generic process management philosophy derived mostly from the Toyota Production System. This paper presents the results of case study about implementation of lean concept in bottler beverage production system in the Croatian enterprises and the main problems of implementation.

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Organizaiton Performance Measurement and Quality Information System in Serbia - Quality Managers' Estimates (pp. 13-20)

Vladan Radlovački, Ivan Beker, Bato Kamberović, Mladen Pečujlija, Milan Delić
This study represents a research carried out on a sample of organizations from Serbia with a certified quality management system (QMS). We made an attempt to explore impacts of information system (IS) quality on measuring management system performance in an organization. The study is based on subjective estimates of quality managers. According to experiences from developed countries, the quality of the information system has, in all its dimensions, very strong influence on measuring system performance (as well as on the performance itself). In Serbia, we found only one among the observed dimensions of IS quality to have a weak impact on measuring organization performance. We also found no significant variations of the dependent variable by observed objective organization parameters (number of employees, type of ownership and maturity of the system in an organization). Results were discussed and it is believed that submitted information could be useful both for professionals and for the researchers in a struggle for gaining better organization performance, since we did not find similar research carried out in Serbia so far.

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Implementing Lean in Health Care: Making the link between the approach, readiness and sustainability (pp. 1-12)

Zoe Radnor
This paper draws on the findings of three evaluations, two Hospitals and a Mental Health Trust in England, on the implementation of Lean within Health Care. The paper analyses the case studies not only to assess if the approach taken was process or continuous improvement but also to evaluate the degree to which conditions of readiness related to Lean were present. Organisational readiness factors include understanding of the process/system view, customer view, data and engaging the staff to ensure that Lean is not just about making poor processes more efficient by focusing on the tools. The paper introduces a typology of Lean implementation which could be used to situate organisations to understand their relationship between the approach taken and, the state of the conditions of readiness thus the level of sustainability which could be achieved.

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