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Schneider R.,Fachhochschule Oberosterreich F and E GmbH | Schlagradl T.,Fachhochschule Oberosterreich F and E GmbH | Schuller C.,Fachhochschule Oberosterreich F and E GmbH | Grunwald R.,Fronius International GmbH
HTM - Haerterei-Technische Mitteilungen | Year: 2012

Short-cycle heat treatments are typical manufacturing conditions for surface hardening processes and welding. These conditions are characterized by rapid changes of the temperature over the time, and by significant local variations of the heat treatment cycles. To measure the relationship between hardness and toughness for such conditions, a new testing method, based on a quenching dilatometer and the use of micro impact samples has been developed. The samples not only provide an impact toughness value and related micro hardness results, but also possibilities for investigations of the microstructure and fracture surface. The relationship between hardness and toughness shows a similar trend, independent from the heat treatment cycles, except from secondary hardening effects which do not occur at very short tempering cycles. The method also provides the possibility to compare the behaviour of different steels or filler materials. © 2012 Carl Hanser Verlag, M+nchen.


Kriegel J.,Fachhochschule Oberosterreich F and E GmbH | Auinger K.,Fachhochschule Oberosterreich F and E GmbH | Reckwitz L.,University of Gottingen | Schmitt-Ruth S.,Fraunhofer Arbeitsgruppe fur Supply Chain Services | And 2 more authors.
Studies in Health Technology and Informatics | Year: 2016

The living environments of senior citizens are gaining in complexity with regard to health, mobility, information, support and behaviour. The development of Ambient Assisted Living (AAL) services in order to reduce this complexity is becoming increasingly important. The question is: What relevant criteria support the development, measurement and evaluation of business models of hybrid AAL services which have to be considered in an appropriate Performance Measurement Set? Within the EU funded research project DALIA (Assistant for Daily Life Activities at Home) a Service Performance Measurement Criteria (SPMC) Set has been developed and described. With the help of literature review and expert interviews relevant performance criteria were identified and described in the context of Analytic Hierarchy Process (AHP). In conjunction with an AAL business models scanning, a set of performance measurement criteria could be created. Discussion: The development and application of a specific AAL SPMC Set offers the possibility in a targeted and conceptual way advance the development of marketable AAL services. Here it will be important to integrate with software support the SPMC Set in the service development process of future marketable AAL applications. With the application of an adjusted AAL Service Performance Measurement Cube, the conceptual development of marketable AAL services can be maintained and relevant decisions can be supported. © 2016 The authors and IOS Press.


PubMed | Fraunhofer Arbeitsgruppe fur Supply Chain Services, Fachhochschule Oberosterreich F and E GmbH and University of Gottingen
Type: | Journal: Studies in health technology and informatics | Year: 2016

The living environments of senior citizens are gaining in complexity with regard to health, mobility, information, support and behaviour. The development of Ambient Assisted Living (AAL) services in order to reduce this complexity is becoming increasingly important. The question is: What relevant criteria support the development, measurement and evaluation of business models of hybrid AAL services which have to be considered in an appropriate Performance Measurement Set? Within the EU funded research project DALIA (Assistant for Daily Life Activities at Home) a Service Performance Measurement Criteria (SPMC) Set has been developed and described. With the help of literature review and expert interviews relevant performance criteria were identified and described in the context of Analytic Hierarchy Process (AHP). In conjunction with an AAL business models scanning, a set of performance measurement criteria could be created.The development and application of a specific AAL SPMC Set offers the possibility in a targeted and conceptual way advance the development of marketable AAL services. Here it will be important to integrate with software support the SPMC Set in the service development process of future marketable AAL applications. With the application of an adjusted AAL Service Performance Measurement Cube, the conceptual development of marketable AAL services can be maintained and relevant decisions can be supported.


Burgstaller C.,Fritsch GmbH | Riedl B.,Fachhochschule Oberosterreich F and E GmbH | Stadibauer W.,Fachhochschule Oberosterreich F and E GmbH
Annual Technical Conference - ANTEC, Conference Proceedings | Year: 2013

The aim of this work was to investigate the effectiveness of industrially available additives (with different chemical nature) for compatibilization of HDPE - PA6 blends in terms of mechanical and rheological properties. Furthermore, the morphology of the samples should be assessed to get deeper insights into the interaction of the compatibilizer with the two immiscible polymers. We found, that it is possible to compatibilize immiscible blends via the addition of industrially available additives, as well as that the chemical nature of said compatibilizers and the concentration in the blend influence the various investigated properties, like impact strength and morphology.


Burgstaller C.,Fritsch GmbH | Zykaite R.,Fritsch GmbH | Klein F.,Fachhochschule Oberosterreich F and E GmbH | Stadlbauer W.,Fachhochschule Oberosterreich F and E GmbH
Annual Technical Conference - ANTEC, Conference Proceedings | Year: 2014

The aim of this work was to investigate the interfacial shear strength of basalt fiber polypropylene matrix composites via two different methods. The methods applied here were the microdebond test as a direct measurement and the use of Rule-of-Mixtures models to evaluate the macromechanical properties. We found, that it is possible to yield results from both methods, which are in good accordance. Furthermore, while the assessment of the interfacial properties via the microdebond test is a direct method, the influences of preparation and handling are obvious. The calculation of the interfacial shear strength from macromechanical test needs higher effort, but therefore also more interfaces are evaluated at once. Nevertheless, both methods can be useful for application when the respective constraints are taken into account. Copyright © (2014) by the Society of Plastics Engineers.


Burgstaller C.,Fritsch GmbH | Bigarella C.A.P.,Fritsch GmbH | Riedl B.,Fachhochschule Oberosterreich F and E GmbH | Stadlbauer W.,Fachhochschule Oberosterreich F and E GmbH
Annual Technical Conference - ANTEC, Conference Proceedings | Year: 2014

The aim of this work was to investigate the possibilities of compatibilizing immiscible blends of HDPE - PA6 via reactive extrusion. We investigated the influence of the compatibilization on the mechanical and rheological properties, as well as the morphology of the samples was investigated. We found, that it is possible to compatibilize immiscible blends via the in situ production of a compatibilizer from a pre-cursor and a radical generator in the blends. The effectiveness of this method is comparable with the compatibilization via the addition of pre-fabricated, industrially available additives. Copyright © (2014) by the Society of Plastics Engineers.


Fureder E.,Voestalpine AG | Voit C.,Fachhochschule Oberosterreich F and E GmbH | Puhringer J.,Voestalpine AG | Pohl M.,Ruhr University Bochum
Praktische Metallographie/Practical Metallography | Year: 2010

When it comes to characterizing modern ultra-high-strength steels, classical metallography is faced with enormous challenges In the context of etching, where several phases occur at one time and in the context of resolution, where grain sizes are in a range of a few μm. This article is to show how it is still possible, by means of classical etching technique and images made by light microscopy, to perform quantitative microstructural evaluations despite difficult preconditions. Classical etching techniques developed by Beraha and LePera, which have been in use for decades now, are deployed when contrasting conventional steels for a qualitative and quantitative evaluation and their results are being compared. Investigations with scanning electron microscopes are made to review the results. © Carl Hanser Verlag, München.


Miyama E.,Voestalpine AG | Voit C.,Fachhochschule Oberosterreich F and E GmbH | Pohl M.,Ruhr University Bochum
Praktische Metallographie/Practical Metallography | Year: 2011

Bainitic microstructures occur increasingly in modern, low-alloy multi-phase steels. A knowledge of the type of bainitic microstructure formed as a result of the alloy composition and manufacturing process used is important in enabling the required level of strength to be achieved. The morphology of the cementite precipitated plays an important role in identifying the phases present. Currently, in order to characterise and evaluate the sub-microscopic cementite formed the lengthy and expensive process of transmission electron microscopy (TEM) is used. The work presented here demonstrates that with the use of an optimised method of specimen preparation and examination, the morphology of the cementite precipitate in bainitic microstructures may also be examined using high resolution scanning electron microscopy (HRSEM) and, in addition, the quantitative characteristics such as particle length, number and distribution evaluated. Compared with TEM, this optimised method of specimen preparation and examination will in future permit statistically more accurate and thus more cost efficient investigations to be carried out on the formation ofcementite. © Carl Hanser Verlag, Münchan.


Kriegel J.,Fachhochschule Oberosterreich F and E GmbH | Auinger K.,Fachhochschule Oberosterreich F and E GmbH
Studies in Health Technology and Informatics | Year: 2015

The Ambient Assisted Living (AAL) market is still in an early stage of development. Previous approaches of comprehensive AAL services are mostly supply-side driven and focused on hardware and software. Usually this type of AAL solutions does not lead to a sustainable success on the market. Research and development increasingly focuses on demand and customer requirements in addition to the social and legal framework. The question is: How can a systematic performance measurement strategy along a service development process support the market-ready design of a concrete business model for AAL service? Within the EU funded research project DALIA (Assistant for Daily Life Activities at Home) an iterative service development process uses an adapted Osterwalder business model canvas. The application of a performance measurement index (PMI) to support the process has been developed and tested. Development of an iterative service development model using a supporting PMI. The PMI framework is developed throughout the engineering of a virtual assistant (AVATAR) as a modular interface to connect informal carers with necessary and useful services. Future research should seek to ensure that the PMI enables meaningful transparency regarding targeting (e.g. innovative AAL service), design (e.g. functional hybrid AAL service) and implementation (e.g. marketable AAL support services). To this end, a further reference to further testing practices is required. The aim must be to develop a weighted PMI in the context of further research, which supports both the service engineering and the subsequent service management process. © 2015 The authors and IOS Press.


PubMed | Fachhochschule Oberosterreich F and E GmbH
Type: | Journal: Studies in health technology and informatics | Year: 2015

The Ambient Assisted Living (AAL) market is still in an early stage of development. Previous approaches of comprehensive AAL services are mostly supply-side driven and focused on hardware and software. Usually this type of AAL solutions does not lead to a sustainable success on the market. Research and development increasingly focuses on demand and customer requirements in addition to the social and legal framework. The question is: How can a systematic performance measurement strategy along a service development process support the market-ready design of a concrete business model for AAL service? Within the EU funded research project DALIA (Assistant for Daily Life Activities at Home) an iterative service development process uses an adapted Osterwalder business model canvas. The application of a performance measurement index (PMI) to support the process has been developed and tested. Development of an iterative service development model using a supporting PMI. The PMI framework is developed throughout the engineering of a virtual assistant (AVATAR) as a modular interface to connect informal carers with necessary and useful services. Future research should seek to ensure that the PMI enables meaningful transparency regarding targeting (e.g. innovative AAL service), design (e.g. functional hybrid AAL service) and implementation (e.g. marketable AAL support services). To this end, a further reference to further testing practices is required. The aim must be to develop a weighted PMI in the context of further research, which supports both the service engineering and the subsequent service management process.

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