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Search Results: 1 - 10 of 778 matches for " Matti Mottonen "
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Combining Steel and Chemical Production to Reduce CO2 Emissions  [PDF]
Jouko Arvola, Janne Harkonen, Matti Mottonen, Harri Haapasalo, Pekka Tervonen
Low Carbon Economy (LCE) , 2011, DOI: 10.4236/lce.2011.23015
Abstract: New legislation and emissions trading increase pressures for the industry to find new environmentally sound solutions. This research analyses the utilisation of carbon monoxide (CO), formed in steel mills from the emissions reduction viewpoint. The research studies possibilities of combining steel and chemical productions from economic and environmental perspectives. The analysis includes considering emissions costs and electricity price, when CO is converted into chemical products. The results prove the economic profitability of a steel mill selling CO gas to a chemical producer instead of using it for energy production, while CO2 emissions are simultaneously reduced.
Improving High-Tech Product Development through Communication Audits  [PDF]
Mirja Vaananen, Pekka Belt, Janne Harkonen, Matti Mottonen
Technology and Investment (TI) , 2012, DOI: 10.4236/ti.2012.31004
Abstract: Functional communication is a necessity to succeed in high technology product development where projects typically are multi-site, multi-cultural, multi-technical, and products are complex. The aim of this study is to clarify what kind of process is suitable for assessing the effectiveness of communication in high-tech product development. Based on the literature analysis, a communication audit process is constructed and tested in five product development projects of different information and communication technology (ICT) companies. Based on test case experiences and analyses, this study proposes a streamlined communication audit process. An outcome of this paper is a streamlined communi-cation audit process that provides benefits for companies, but does not burden the organisation unnecessarily. Man-agers of high-tech companies can utilise the developed process for enhancing communication in their product devel-opment.
Successful Performance Measurement in SMEs through Personnel Participation  [PDF]
Janne Sinisammal, Pekka Belt, Janne Harkonen, Matti Mottonen, Seppo Vayrynen
American Journal of Industrial and Business Management (AJIBM) , 2012, DOI: 10.4236/ajibm.2012.22005
Abstract: Balanced scorecard has proven to be a functional tool for large companies, however, small- and medium-sized enter-prises (SME) have experienced it too complicated for their purposes. The aim of this research is to analyse the potential of simplifying balanced scorecard in order to acknowledge the practical realities of SMEs. The results of this study in-dicate that the viewpoints covered by balanced scorecard can be simplified into three categories of productivity, work fluency, and safety. A simplified balanced scorecard can act as a tool for internal communication in SMEs, by converting company strategy into common terms understandable by the employees. The managers of SMEs can use the results of this study as an example when considering the implementation of their business strategy. It is vital to involve employees when developing performance indicators.
Benefits of DfX in Requirements Engineering  [PDF]
Jari Lehto, Janne Harkonen, Harri Haapasalo, Pekka Belt, Matti Mottonen, Pasi Kuvaja
Technology and Investment (TI) , 2011, DOI: 10.4236/ti.2011.21004
Abstract: Information and communications technology (ICT) companies have realised how acknowledging the needs of both internal and external customers is a necessity for successful requirements engineering. Design for X (DfX) is a potential management approach for coordinating & communicating requirements emerging from both internal functions and external supply chain partners. This article studies the potential of DfX for improved requirements engineering. Qualitative interviews are utilised to analyse how different organisations implement the concept, including designers’ actual work, methods & tools, and organisational aspects. The results include viewing DfX as means to achieve relevant competitive goals, and describing how different companies organise these activities, together with their benefits for modern ICT companies. This study highlights how the DfX concept can be used to manage, prioritise and to better communicate
Manufacturing Process Capability and Specification Limits
Matti Mottonen, Pekka Belt, Janne Harkonen, Harri Haapasalo and Pekka Kess A
The Open Industrial & Manufacturing Engineering Journal , 2008, DOI: 10.2174/1874152500801010029]
Abstract: In modern electronics, specifications for products have constantly been tightened due to performance competition. The processes for product development and manufacturing have been developed to meet the tighter specifications and quality requirements. The development of test methods and measurement devices have not been as fast, and as a consequence, the relative impact of measurement errors has increased. Traditionally, the measurement inaccuracies have been compensated by tightening the acceptance limits. This study concentrates on analysing, through simulation, how companies should minimise the failure costs by adjusting acceptance limits. The study shows, in contrast to the conventional thinking, that widening the acceptance limits makes business sense in some cases.
Decompositions of general quantum gates
M. Mottonen,J. J. Vartiainen
Physics , 2005,
Abstract: Quantum algorithms may be described by sequences of unitary transformations called quantum gates and measurements applied to the quantum register of n quantum bits, qubits. A collection of quantum gates is called universal if it can be used to construct any n-qubit gate. In 1995, the universality of the set of one-qubit gates and controlled NOT gate was shown by Barenco et al. using QR decomposition of unitary matrices. Almost ten years later the decomposition was improved to include essentially fewer elementary gates. In addition, the cosine-sine matrix decomposition was applied to efficiently implement decompositions of general quantum gates. In this chapter, we review the different types of general gate decompositions and slightly improve the best known gate count for the controlled NOT gates to (23/48)4^n in the leading order. In physical realizations, the interaction strength between the qubits can decrease strongly as a function of their distance. Therefore, we also discuss decompositions with the restriction to nearest-neighbor interactions in a linear chain of qubits.
A Novel Hybrid Approach to Estimate Customer Interruption Costs for Industry Sectors  [PDF]
Sinan Kufeoglu, Matti Lehtonen
Engineering (ENG) , 2013, DOI: 10.4236/eng.2013.510A006
Abstract:

The power system infrastructure, operations and market have gone through radical changes for the last couple of decades. The society has become more dependent to the continuous electric power supply and hence the concept of electric power reliability has become more significant. At this point, understanding the economic outcomes of power outages is vital and imperative for both utilities and the customers. There are certain methodologies to understand the costs of power interruptions. This paper suggests a novel hybrid method that comprises of customer surveys and direct analytical methods to reach customer specific, objective and reliable results for the industry sector customers. The paper also brings a statistical approach to censor the zero and extreme responses given via the surveys.

Vehicles, Replicators, and Intercellular Movement of Genetic Information: Evolutionary Dissection of a Bacterial Cell
Matti Jalasvuori
International Journal of Evolutionary Biology , 2012, DOI: 10.1155/2012/874153
Abstract: Prokaryotic biosphere is vastly diverse in many respects. Any given bacterial cell may harbor in different combinations viruses, plasmids, transposons, and other genetic elements along with their chromosome(s). These agents interact in complex environments in various ways causing multitude of phenotypic effects on their hosting cells. In this discussion I perform a dissection for a bacterial cell in order to simplify the diversity into components that may help approach the ocean of details in evolving microbial worlds. The cell itself is separated from all the genetic replicators that use the cell vehicle for preservation and propagation. I introduce a classification that groups different replicators according to their horizontal movement potential between cells and according to their effects on the fitness of their present host cells. The classification is used to discuss and improve the means by which we approach general evolutionary tendencies in microbial communities. Moreover, the classification is utilized as a tool to help formulating evolutionary hypotheses and to discuss emerging bacterial pathogens as well as to promote understanding on the average phenotypes of different replicators in general. It is also discussed that any given biosphere comprising prokaryotic cell vehicles and genetic replicators may naturally evolve to have horizontally moving replicators of various types. 1. Introduction Viruses that infect prokaryotic cells are known to be enormously diverse in terms of genetic information [1, 2]. Most novel viral isolates are likely to have at least some genes that have no homologues among any of the previously known genes, including those in the genomes of related viruses [3]. Yet, there has been a dispute whether or not new genes may actually emerge in viruses [3]. Viruses are dependent on cellular resources such as nucleotides, amino acids, and lipids for producing more viruses; therefore it seems justified to ask whether they also use cellular genes for their genetic information. Yet, when viral genes are compared to other genes in databases, it often appears that they have no cellular counterparts [2]. Where then do these viral genes come from? Have they been acquired from a cellular host that we simply have not sequenced before? Or alternatively, are the cellular genes perhaps just evolving rapidly in viral genomes so that their common ancestry with the host genes can no longer be derived? Or perhaps, is it indeed possible that new genes actually emerge in viruses themselves? Forterre and Prangishvili from Pasteur Institute
The Marketplace Variables in Successful and Unsuccessful NPD Projects in Technology Intensive Companies
Haverila,Matti;
Journal of technology management & innovation , 2010, DOI: 10.4067/S0718-27242010000400010
Abstract: we present an exploratory investigation of how managers conceptualize and perceive 'marketplace' variables in successful and unsuccessful new product development (npd) projects, and explore the role that marketplace variables play in differentiating between successful and unsuccessful npd outcomes. limitations and future research directions are also discussed. our findings indicate that managers perceive the marketplace in multiple ways during the npd process and also that differences exist in metric equivalence across successful and unsuccessful npd projects. also, although half of the marketplace variables are positively related to npd success, managers in finnish technology companies appear to attach higher relative importance to market attractiveness rather than market competitiveness variables. marketplace variables appear to be less important than in the korean and chinese samples, and much more important than in the canadian sample in the mishra et al. study (1996), and similarly much more important than in the cooper study (1979b).
Review of Carole A. George (2008) User-Centred Library Websites: Usability Evaluation Methods.
Matti Pekuri
Libreas : Library Ideas , 2009,
Abstract:
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