308 research outputs found

    PLM implementation guidelines – relevance and application in practice: a discussion of findings from a retrospective case study

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    In this paper, a recently conducted product lifecycle management (PLM) implementation project is analysed. The aims are to investigate whether published product lifecycle management (PLM) implementation guidelines are relevant to and used in practice, and, if so, to assess how useful they are for guiding project execution. This paper presents an examination of how a real PLM implementation project was conducted, mapping out the rationale for different courses of action and the effects they had. This paper evaluates the degree of relevance and application of existing PLM implementation guidelines. It is found that while most of the guidelines were highly relevant to the project, they were not applied in full. Potential reasons for why the guidelines are not followed are discussed. It is suggested that projects review their plans with the guidelines in mind, evaluating their degree of relevance and including a plan for how to apply the guidelines

    Nästa generations syn på skogsägandet och skogsägarrörelsen

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    The future of the forest owners’ associations are intimately coupled to the development in family forestry. Forecasts have been made that predicts that the number of forest properties for sale on the open market will increase as the interest among the children of the property owners is considered to decrease. The associations are also affected by continuing individualism in the society which may affect attitudes to as well as interest in membership. The objective of this study was to study the attitudes among grown-up children of members in a forest owners association towards overtaking the forest property as well as membership in a forest owners association. The study focused on grown-up children who were between 30 and 50 years old. To reach them, 800 members between 55 and 70 years old were contacted to gather contact information to their children. After random sampling among siblings to 384 members who provided such information (only one child per member was included in the study), 299 usable answers were gathered using a telephone questionnaire. The majority of the children that answered the questionnaire were between 30 and 35 years old. The proportion of children who today were interested to take over their parents’ property (77.3 %) was comparable to the proportion of today’s forest owners that have acquired their property within their family. Women were significantly less interested to take over their parents’ property. The proportion of children interested to take over the property together with their siblings (43.7 %) was higher than the present proportion of properties that were share-owned. Children who helped their parents with the practical management were significantly more interested to take over their parents’ property. The children were well-acquainted with the forest owners association and three out of four children were interested to become a member, or were already a member, if they were to take over their parents’ property. However, half of the children did not have knowledge of the values of the forest owner association which may imply that the recruitment of members willing to lead the association in the future might become more difficult than it is today

    Pharmaceutical product modularization as a mass customization strategy to increase patient benefit cost-efficiently

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    Customized pharmaceutical products aim to comply with the individual needs of a patient to enhance the treatment outcome. The current pharmaceutical production paradigm is, however, dominated by mass production, where the pharmaceutical products embrace a one-size-fits-all design with a low possibility of treatment optimization to patient needs. This production paradigm is not designed or intended for customized pharmaceutical products and operating this production context for customized pharmaceutical products is argued to be cost-inefficient. To address this challenge of inefficient production of customized pharmaceutical products, this study proposes an approach to modular pharmaceutical product design. As a mass customization strategy, product modularization enables serving customers with customized products cost-efficiently. The proposed modular pharmaceutical products integrate three product design requirements originating from patient needs: a scalable dose strength, a flexible target release profile, and a scalable treatment size. An approach to assess the value of these product designs is presented, by means of proposing three benefit metrics complying with respective design requirements and a cost metric assessing the cost of producing these modular pharmaceutical product designs. Results suggest that pharmaceutical product modularization can, by keeping the number of produced components low, substantially increase the external product variety and, hence, enhance the treatment outcome of patients. Fur-thermore, results indicate that the achieved benefit for the patient through product modularization increases beyond additional costs arising during production. However, a careful modularization must be performed to optimize the tradeoff between the increased benefit and cost

    Lessons learned from the application of enhanced Function-Means modelling

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    Although well researched and praised in academic publications, function modelling (FM) does not\ua0have gained much traction in industrial application. To investigate into possible reasons for this,\ua0this publication researches literature of nine different projects where enhanced function-means modelling has been applied. The projects are analysed for their purpose of FM-use, applied\ua0benefits and discovered challenges of the FM approach. From this, the main challenges for FM\ua0application are the abstraction level of the modelling language as well as the lack of an interface to\ua0CAD modelling

    Learning Mechatronics Using Digital Live Labs

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    Practical skills training in laboratories are important elements and learning outcomes in engineering education, where leaners, through exploration, experimentation and reflection engage in inquiry-based learning that stimulate the acquisition of deep conceptual domain knowledge and inquiry skills. Traditional lab environments are very costly to maintain, partly unsafe and often require proximity of instructors and/or students that is in conflict with the Covid-19-driven need for physical/social distancing. In this paper, we describe and evaluate a course in logic control that used online labs both in pure online and in hybrid format. Students reported very high satisfaction with all three formats and achieved similar learning performances. However, qualitative analyses indicate that student learning is deeper and more authentic in the on-campus and hybrid formats compared to the pure online format. Teacher reflections show an overall positive impression of online labs. In conclusion, we recommend the hybrid format as it combines the benefits of online and physical labs, i.e., the flexibility of online laboratory work and realism of hands-on physical laboratory work

    Using Personas to Guide Education Needs Analysis and Program Design

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    The undergraduate programs within electrical engineering, computer science and engineering and software engineering at Chalmers are currently under revision. Some notable problems for these programs are the long-term trends of diminishing number of applications and a low share of female students. This paper first describes the stakeholder’s needs analysis phases of the project, where current occupational roles for these types of engineers were mapped out in order to find out what knowledge skills and attributes that are necessary to work as an engineer in this field. These occupational roles were then used to guide the program concept design phase of the project. As the number of occupational roles is large, a persona methodology was used to gather all the necessary information into a graspable format. Personas have for a long time been used in e.g. software development for describing users/customers. We adapted this methodology to describe the future professional roles of engineering graduates. The personas were based on information gathered through workshops with Chalmers staff and representatives from the local business sector, alumni surveys and observational journals from working engineers as well as documentation from different organizations on the future demands on engineers. The paper then describes the program concept design phase of the project, where the personas were used as reminders for the design team that the roles for engineers at work are broad and contain many tasks and aspects that are traditionally not covered in engineering education. These many tasks need to be considered in the curriculum. In particular, the personas were helpful in the work of designing new and more diverse profiles at the bachelor level. In addition, the personas work, which was performed rather broadly across the departments involved in these five programs, has served as a basis for making the premises for the succeeding revision well known across the organization

    Evaluation of Refractory Metal Concentrations in Nano-Particulate Pressed-Powder Pellets Using LA-ICP-MS

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    Whole-rock geochemical analysis is a standard method to measure the chemical composition of ores. Analysis of refractory ore metals such as Ta and W typically requires fused bead and acid digestion followed by inductively coupled plasma atomic emission spectrometry (ICP-AES) and inductively coupled mass spectrometry (ICP-MS). Since these techniques are time-consuming and expensive, there is a demand for methods that can quantitatively measure low elemental concentration of refractory ore metals using a less expensive and simple approach. This paper evaluates preparation and analytical procedures developed to obtain whole-rock element concentrations of ore samples and mineral concentrates. It shows that the production of nano-particulate pressed-powder pellets followed by LA-ICP-MS analysis of W and Ta ores can be used to determine, within the error margin, the concentrations of the refractory metals W, Ta, Nb, and Sn compared to a reference values obtained by solution analysis. The results have implications for developing a commercially viable method for analysis of refractory elements to benefit mineral processing given the simplicity and resource-efficiency of the combined pressed pellet production and laser ablation analytical methodology
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