196 resultados para process specification
Resumo:
The structural change of society from product-based business to service- and further to need-based business has caused the fact that work for environmental issues has spread from conventional factories and environmentally harmful production to concern services and offices as well. Almost every company has an office, so a relatively small environmental burden caused by an individual office grows remarkable already at the state level and globally even more. Motivation to work for environmental issues in an individual office could be challenging even without the fact that wasted environmental impacts bound also wasted costs. Besides cost savings, a concretely greener image of a company has its value in the B2Cas well as in the B2B-field. Consumers and clients are more and more conscious of environmental issues and demand concrete actions instead of speeches, good thoughts and meaningless certifications. Internal work for environmental issues at a strategy level is not sufficient, so operational environmental management is needed for changing old practices. This research is about the effects of operative environmental management on the greening process of an office-based business. The research is outlined to concern the operative work in the office including field sales. Target was to concretely lower the environmental impacts of Lyreco Finland and to find cost savings directly by changing the operative practices in the office and also indirectly by affecting the level of environmental knowledge of the personnel. During the greening process, the aim was also to create concrete arguments for marketing as well. The circle of greening process, which was especially created for this diploma work, was used as a method. The circle divides a year to themes and sections separated by factors of environmental impacts. Separation is based on Brett Wills’ thoughts of seven green wastes (Wills, Brett. The Green Intensions. 2009) and follows it uneasily. The circle aimed at ensuring evolutionary growth of knowledge instead of being revolutionary in the changing process. Committing personnel to the process from its start by asking ideas from them and giving them clear directions was an important part of the research of operative management. Because of working from distance, communication with personnel was operated by frequent training days and weekly greening notes via emails and intranet. Also availability for communication was an important task because of the telecommuting. Research results of this work show that operative environmental management in an officebased business today is mostly management of change. When the strategic environmental friendliness is taken into a concrete level, the most important individual factor is motivating the operating personnel. Research shows that evolutionary change is found being an efficient way to make a change. Also understanding one´s own impact on the environmental burden and on the whole greening process clearly motivates the personnel. Results show that in the operative realization of the greening process, clear directions of new working practices, being as concrete as possible, and committing personnel to follow them make the process more effective. The operative environmental management and the cycle of the greening process decrease the environmental burden and save costs. The concrete results could be used as believable arguments in marketing and therefore exploited in communication with interest groups. Commitment of the management is also one of the key factors of success in the greening process. In this research, changes in the business field by a company trade took the focus of the management away from the greening process and made the process more inefficient by decreasing the amount of training days. The circle of greening process will be used as a tool in the future, as well, and therefore it will help observe environmental impacts of a company and increase sustainable development. Commitment of management to the evolutionary environmental work helps the operating personnel lower environmental impacts, decrease costs and build a concretely greener image.
Resumo:
Diplomityö tehtiin M-real Joutsenon BCTMP-tehtaalle. Työn aiheena oli tehdä uuteaine- ja metallikartoitus eri prosessivaiheiden massoista ja suodoksista BCTMP-tehtaassa. BCTMPmassaa käytetään muun muassa elintarvikekartongin keskikerroksessa. Pakattaviin kartonkeihin suoraan kosketuksissa olevat elintarvikkeet ovat alttiita haju- ja makuvivahteille. Hajut ja maut voivat saada alkunsa kartongin komponenteista, kuten BCTMP-massasta, kartongin päällystysaineista ja kartongin jatkojalostuksessa käytetyistä painoväreistä. Diplomityön teoriaosuudessa keskityttiin puun lipofiilisiin uuteaineisiin ja erityisesti komponentteihin, jotka aiheuttavat haju- ja makuongelmia. Teoriaosuudessa käsiteltiin myös haju- ja makuominaisuuksien muodostumiseen vaikuttavia tekijöitä sekä kerrottiin mahdollisista uuteaineiden poistomenetelmistä. Teoriaosuudessa esiteltiin analysointimenetelmiä, joita käytettiin kokeellisessa osassa. Kokeellisessa osassa esiteltiin valmistettavan massan laatuspesifikaatiot ja toteutuneet laatutrendit. Samassa tutkittiin massan analysointimenetelmien tuloksien korrelaatioita kokonaisuuteaineiden toteamiseksi. Seuraavaksi käsiteltiin syksyllä 2010 ja talvella 2011 tehtyjä prosessin uuteainekartoituksia, jossa muun muassa tutkittiin eri prosessivaiheiden massojen ja suodoksien uuteainemääriä ja –komponentteja. Kartoituksien yhteydessä laskettiin prosessin uuteainetaseita ja prosessin pesutehokkuuksia. Samalla tutkittiin siirtymämetallimääriä, jotka osaltaan vaikuttavat haju- ja makuominaisuuksiin. Kokeellisen osan korrelaatiovertailuissa huomattiin, että merkittävin korrelaatio kokonaisuuteaineisiin on viimeisen massan pesuvaiheen suodoksen sameudella, liki 80 %. Heksanaalipotentiaalin ja uuteaineen korrelaatio oli myös noin 80 %. Valmiista massasta tehdyn kemiallisen hapen kulutuksen eli COD:n korrelaatio uuteaineisiin oli vain 38 %. Prosessikartoituksen tuloksista laskettujen pesuvaiheiden erotustehokkuudet olivat hyvät.
Resumo:
Cultural heritage has become something of an in-word in recent times. Intangible cultural heritage, however, is a category that has received relatively little attention. This folkloristic study focuses on intangible cultural heritage as concept and as process. Folkloristics as a scholarly branch emphasizes non-material culture. Consequently, there is a big potential in bringing existing knowledge of folklore together with current scholarly theories concerning cultural heritage in order to expand the understanding of intangible cultural heritage. In this thesis cultural heritage is regarded as a symbolic construct, which is spoken of and discussed in specific ways. The study of intangible cultural heritage (Swe. kulturarv) as concept focuses on this area. For a cultural component to be experienced as intangible cultural heritage it is, however, not enough to discuss it in those terms. Instead, cultural heritage status needs to be acted out during lengthy processes. This is demonstrated by the study of intangible cultural heritage as process. As a consequence performativity appears crucial to an understanding of cultural heritage – when a sufficient number of people speak and act as if a cultural component has a special status, it will also be perceived as cultural heritage. In this dissertation intangible cultural heritage is studied through cultural analysis, more specifically through discourse analysis. The usage of the concept intangible cultural heritage within cultural organizations, in scholarly use and in the Swedish-speaking press in Finland is examined. Traditional music in the Swedish-speaking districts of Finland is used as a case study of intangible cultural heritage as process. The examination concerns how traditional music, an intangible cultural component, has been discussed, transformed, standardized and objectified in a cultural heritage process. Cultural heritage is generally used as a token of value so that certain cultural components, both intangible and tangible, which are discussed in terms of cultural heritage are perceived to be valuable and should therefore be safeguarded. Intangible cultural heritage depends on performance, that is practitioners use their bodies to act out their traditional knowledge through song, handicraft, storytelling and so on. Intangible cultural components can be transmitted to other individuals in a performance situation, and they can also be documented. In Finland documentation and subsequent filing in archives have been associated with safeguarding of intangible cultural heritage. If the aim of safeguarding is to uphold traditional practices, which is the case for among others UNESCO’s programs aimed at intangible cultural heritage, other efforts are called for: forms of safeguarding that support performance and transmission.
Resumo:
Työn tarkoituksena on suunnitella ja toteuttaa kannettava kaasuilmaisin, joka soveltuu erityisesti tavallisen kuluttajan tarpeisiin. Kaasuilmaisin on herkkä haihtuville palaville kaasuille, sekä orgaanisille kaasuille. Työssä käytetään Atmelin ATMega164P- mikrokontrolleria, piirin ohjelmointiin käytetään AVR-ISP-II, ja kehitystyökaluina AVRStudio 4:ää. Piirilevy on suunniteltu Cadsoftin Eagle- piirieditorilla. Työssä käydään läpi kokonaisvaltainen sulautetun järjestelmän suunnitteluprosessi, tuotteen spesifikaatioiden määrityksistä aina valmiin fyysisen tuotteen valmistuttamiseen asti. Tuote suunnitellaan Environics Oy:lle.
Resumo:
The aim of the study was to examine problems that small and medium enterprises are facing during the implementation of business process automation projects. Study reveals problems from the point of view of companies who are implementing automation projects and from the point of view of IT-integrators who are specifying in IT solutions for small and medium companies.
Resumo:
Various regulations and customer requirements have made it necessary for Vacon Oyj to pay more attention to the environmental aspects in its processes. The main purpose of this master’s thesis project is to define how environmental aspects could be integrated into Vacon’s product development process. The aim is to find out the most important environmental aspects for the company to address, to examine how these could be taken into account during the development process and to map the critical factors that need consideration in order to ensure the successful integration of environmental aspects into the design process. Based on the customer requirements and evolving regulations the most important aspects for Vacon include minimizing the amount of harmful substances, improving the recyclability and energy efficiency of the product and moreover providing meaningful information related to these aspects. To tackle these issues, a new DfE process was developed, tasks in each phase were described and responsibilities were indicated. To ensure the success of the DfE process, management commitment, support of other processes and significant improvements in ways the information is managed are required. The developers should be provided with training and support. Environmental expertise and knowledge in-house should be developed and establishing meaningful environmental indicators is suggested.
Resumo:
Tämä diplomityö käsittelee Neste Oilin Porvoon jalostamon HF-alkylointiyksikön alasajon ja huoltopysäytyksen rajapintaa. Työssä tarkastellaan erilaisia vaihtoehtoja alasajon aikaisen neutralointi- ja puhdistusprosessin kehittämiseen huomioiden materiaalitekninen näkökulma. Työn alkuosassa esitellään alkyloinnin perusperiaate, huoltopysäytysprosessi sekä eri neutralointi- ja puhdistusprosessit, joista tarkemmin nykyisin jalostamolla käytettävä EnvTech:n prosessi. Työssä on myös kerrottu alkyloinnin erityisvaatimukset materiaaleille, joista tarkemmin on esitelty perusmateriaaleina käytettävät hiiliteräs A106 sekä Monel® 400. Näiden perusmateriaalien kohdalla on myös esitelty kirjallisuuden pohjalta niiden käyttäytyminen fluorivety-ympäristössä. Työn loppuosassa on esitelty eri vaihtoehtoja, jotta käyttövarmuutta voitaisiin kehittää yhdessä mahdollisesti kasvavien tuotantomäärien kanssa. Putkistojen kohdalla työssä on käsitelty kehityskohteeksi valittua erästä pääkolonni-osaan kuuluvaa linjastoa. Eri vaihtoehtoja on vertailtu teknistaloudelliselta näkökulma ja putkiston kohdalla on työssä päädytty geometrian muuttamiseen sekä koon kasvattamiseen. Työssä on myös esitetty kuumatypetysvaiheen uudelleen aikataulutusta alasajovaiheen nopeuttamiseksi sekä jatkotutkimusehdotuksia putkiston passivoimisesta, rautafluoridikalvon paikalleen jättämiseksi ja huoltopysäytyssyklin kehittämiseksi.
Resumo:
This thesis is done as a part of project called FuncMama that is a project between Technical Research Centre of Finland (VTT), Oulu University (OY), Lappeenranta University of Technology (LUT) and Finnish industrial partners. Main goal of the project is to manufacture electric and mechanical components from mixed materials using laser sintering. Aim of this study was to create laser sintered pieces from ceramic material and monitor the sintering event by using spectrometer. Spectrometer is a device which is capable to record intensity of different wavelengths in relation with time. In this study the monitoring of laser sintering was captured with the equipment which consists of Ocean Optics spectrometer, optical fiber and optical lens (detector head). Light from the sintering process hit first to the lens system which guides the light in to the optical fibre. Optical fibre transmits the light from the sintering process to the spectrometer where wavelengths intensity level information is detected. The optical lens of the spectrometer was rigidly set and did not move along with the laser beam. Data which was collected with spectrometer from the laser sintering process was converted with Excel spreadsheet program for result’s evaluation. Laser equipment used was IPG Photonics pulse fibre laser. Laser parameters were kept mainly constant during experimental part and only sintering speed was changed. That way it was possible to find differences in the monitoring results without fear of too many parameters mixing together and affecting to the conclusions. Parts which were sintered had one layer and size of 5 x 5 mm. Material was CT2000 – tape manufactured by Heraeus which was later on post processed to powder. Monitoring of different sintering speeds was tested by using CT2000 reference powder. Moreover tests how different materials effect to the process monitoring were done by adding foreign powder Du Pont 951 which had suffered in re-grinding and which was more reactive than CT2000. By adding foreign material it simulates situation where two materials are accidently mixed together and it was studied if that can be seen with the spectrometer. It was concluded in this study that with the spectrometer it is possible to detect changes between different laser sintering speeds. When the sintering speed is lowered the intensity level of light is higher from the process. This is a result of higher temperature at the sintering spot and that can be noticed with the spectrometer. That indicates it could be possible to use spectrometer as a tool for process observation and support the idea of having system that can help setting up the process parameter window. Also important conclusion was how well the adding of foreign material could be seen with the spectrometer. When second material was added a significant intensity level raise could be noticed in that part where foreign material was mixed. That indicates it is possible to see if there are any variations in the material or if there are more materials mixed together. Spectrometric monitoring of laser sintering could be useful tool for process window observation and temperature controlling of the sintering process. For example if the process window for specific material is experimentally determined to get wanted properties and satisfying sintering speed. It is possible if the data is constantly recorded that the results can show faults in the part texture between layers. Changes between the monitoring data and the experimentally determined values can then indicate changes in the material being generated by material faults or by wrong process parameters. The results of this study show that spectrometer could be one possible tool for monitoring. But to get in that point where this all can be made possible much more researching is needed.
Resumo:
In this thesis, the components important for testing work and organisational test process are identified and analysed. This work focuses on the testing activities in reallife software organisations, identifying the important test process components, observing testing work in practice, and analysing how the organisational test process could be developed. Software professionals from 14 different software organisations were interviewed to collect data on organisational test process and testing‐related factors. Moreover, additional data on organisational aspects was collected with a survey conducted on 31 organisations. This data was further analysed with the Grounded Theory method to identify the important test process components, and to observe how real‐life test organisations develop their testing activities. The results indicate that the test management at the project level is an important factor; the organisations do have sufficient test resources available, but they are not necessarily applied efficiently. In addition, organisations in general are reactive; they develop their process mainly to correct problems, not to enhance their efficiency or output quality. The results of this study allows organisations to have a better understanding of the test processes, and develop towards better practices and a culture of preventing problems, not reacting to them.
Resumo:
Delays in the justice system have been undermining the functioning and performance of the court system all over the world for decades. Despite the widespread concern about delays, the solutions have not kept up with the growth of the problem. The delay problem existing in the justice courts processes is a good example of the growing need and pressure in professional public organizations to start improving their business process performance.This study analyses the possibilities and challenges of process improvement in professional public organizations. The study is based on experiences gained in two longitudinal action research improvement projects conducted in two separate Finnish law instances; in the Helsinki Court of Appeal and in the Insurance Court. The thesis has two objectives. First objective is to study what kinds of factors in court system operations cause delays and unmanageable backlogs and how to reduce and prevent delays. Based on the lessons learned from the case projects the objective is to give new insights on the critical factors of process improvement conducted in professional public organizations. Four main areas and factors behind the delay problem is identified: 1) goal setting and performance measurement practices, 2) the process control system, 3) production and capacity planning procedures, and 4) process roles and responsibilities. The appropriate improvement solutions include tools to enhance project planning and scheduling and monitoring the agreed time-frames for different phases of the handling process and pending inventory. The study introduces the identified critical factors in different phases of process improvement work carried out in professional public organizations, the ways the critical factors can be incorporated to the different stages of the projects, and discusses the role of external facilitator in assisting process improvement work and in enhancing ownership towards the solutions and improvement. The study highlights the need to concentrate on the critical factors aiming to get the employees to challenge their existing ways of conducting work, analyze their own processes, and create procedures for diffusing the process improvement culture instead of merely concentrating of finding tools, techniques, and solutions appropriate for applications from the manufacturing sector
Resumo:
Software systems are expanding and becoming increasingly present in everyday activities. The constantly evolving society demands that they deliver more functionality, are easy to use and work as expected. All these challenges increase the size and complexity of a system. People may not be aware of a presence of a software system, until it malfunctions or even fails to perform. The concept of being able to depend on the software is particularly significant when it comes to the critical systems. At this point quality of a system is regarded as an essential issue, since any deficiencies may lead to considerable money loss or life endangerment. Traditional development methods may not ensure a sufficiently high level of quality. Formal methods, on the other hand, allow us to achieve a high level of rigour and can be applied to develop a complete system or only a critical part of it. Such techniques, applied during system development starting at early design stages, increase the likelihood of obtaining a system that works as required. However, formal methods are sometimes considered difficult to utilise in traditional developments. Therefore, it is important to make them more accessible and reduce the gap between the formal and traditional development methods. This thesis explores the usability of rigorous approaches by giving an insight into formal designs with the use of graphical notation. The understandability of formal modelling is increased due to a compact representation of the development and related design decisions. The central objective of the thesis is to investigate the impact that rigorous approaches have on quality of developments. This means that it is necessary to establish certain techniques for evaluation of rigorous developments. Since we are studying various development settings and methods, specific measurement plans and a set of metrics need to be created for each setting. Our goal is to provide methods for collecting data and record evidence of the applicability of rigorous approaches. This would support the organisations in making decisions about integration of formal methods into their development processes. It is important to control the software development, especially in its initial stages. Therefore, we focus on the specification and modelling phases, as well as related artefacts, e.g. models. These have significant influence on the quality of a final system. Since application of formal methods may increase the complexity of a system, it may impact its maintainability, and thus quality. Our goal is to leverage quality of a system via metrics and measurements, as well as generic refinement patterns, which are applied to a model and a specification. We argue that they can facilitate the process of creating software systems, by e.g. controlling complexity and providing the modelling guidelines. Moreover, we find them as additional mechanisms for quality control and improvement, also for rigorous approaches. The main contribution of this thesis is to provide the metrics and measurements that help in assessing the impact of rigorous approaches on developments. We establish the techniques for the evaluation of certain aspects of quality, which are based on structural, syntactical and process related characteristics of an early-stage development artefacts, i.e. specifications and models. The presented approaches are applied to various case studies. The results of the investigation are juxtaposed with the perception of domain experts. It is our aspiration to promote measurements as an indispensable part of quality control process and a strategy towards the quality improvement.
Resumo:
Yritysostojen määrä on historiallisen suuri 2000-luvulla, vaikka melkein puolet niistä epäonnistuu. Aineettomilla tekijöillä, kuten organisaatiokulttuureilla, on keskeinen rooli yritysostojen onnistumisissa. Myös case yritys on aktiivinen yritysostoissa ja haluaa arvioida integraatioprosessinsa tehokkuutta. Siten diplomityön tarkoituksena on luoda työkalu organisaatiokulttuurien yhteensopivuuden arvioimiseksi, jotta ostopäätöksentekoa sekä integraation suunnittelua voitaisiin tukea paremmin yrityksessä. Diplomityö vastaakin kysymyksiin, kuten miten arvioida kulttuurista yhteensopivuutta ennen integraatiota integraatioprosessin parantamiseksi sekä mitkä ovat olleet kaikkein ongelmallisimmat ja toisaalta kaikkein menestyksekkäimmät kulttuuritekijät tutkitussa integraatiossa. Kulttuurisen yhteensopivuuden arviointi tulisi nähdä prosessina osana yrityskauppaa. Prosessin tulisi alkaa kulttuurisen integraation tavoitteiden määrittämisellä sekä organisaatiokulttuurin käsitteen ymmärtämisellä. Kulttuurianalyysi tulisi suorittaa työpajan avulla. Sen tulisi käsitellä ainakin yhdeksän kulttuurin osa-aluetta: innovatiivisuus, päätöksenteko, ihmissuuntautuneisuus, kommunikaatio, kontrolli, asiakassuuntautuneisuus, ajanhallinta, identifikaatio, sekä kollektivismi. Lisäksi kuhunkin dimensioon liittyvään kysymykseen tulisi vastata pisteillä yhdestä viiteen, jolloin voidaan piirtää kulttuurisen yhteensopivuuden kuvio. Tämän jälkeen johdon tulisi keskustella tuloksista vielä kerran tarkemmin ja lopulta koota tulokset kirjalliseksi raportiksi. Tutkitussa integraatiossa parhaiten integraatiota tukivat ihmissuuntautuneisuus sekä ajanhallinta (työn ja vapaa-ajan välinen tasapaino sekä tulevaisuus-suuntautuneisuus). Haasteellisimmat kulttuuritekijät koskivat päätöksentekoa, kommunikaatiota ja kontrollia, jotka vaikuttavat olevan tyypillisiä ongelmia ison yrityksen ostaessa pienemmän yrityksen.
Resumo:
Electrokinetic remediation coupled with Fenton oxidation, widely called as Electrokinetic Fenton process is a potential soil remediation technique used for low permeable soil. The applicability of the process has been proved with soil contaminated with a wide range of organic compounds from phenol to the most recalcitrant ones such as PAHs and POPs. This thesis summarizes the major findings observed during an Electrokinetic Fenton Process study conducted for the remediation of low permeable soil contaminated with HCB, a typical hydrophobic organic contaminant. Model low permeable soil, kaolin, was artificially contaminated with HCB and subjected to Electrokinetic Fenton treatments in a series of laboratory scale batch experiments. The use of cyclodextrins as an enhancement agent to mobilize the sorbed contaminant through the system was investigated. Major process hindrances such as the oxidant availability and treatment duration were also addressed. The HCB degradation along with other parameters like soil pH, redox and cumulative catholyte flow were analyzed and monitored. The results of the experiments strengthen the existing knowledge on electrokinetic Fenton process as a promising technology for the treatment of soil contaminated with hydrophobic organic compounds. It has been demonstrated that HCB sorbed to kaolin can be degraded by the use of high concentrations of hydrogen peroxide during such processes. The overall system performances were observed to be influenced by the point and mode of oxidant delivery. Furthermore, the study contributes to new knowledge in shortening the treatment duration by adopting an electrode polarity reversal during the process.
Resumo:
The aim of the thesis was to study quality management with process approach and to find out how to utilize process management to improve quality. The operating environment of organizations has changed. Organizations are focusing on their core competences and networking with suppliers and customers to ensure more effective and efficient value creation for the end customer. Quality management is moving from inspection of the output to prevention of problems from occurring in the first place and management thinking is changing from functional approach to process approach. In the theoretical part of the thesis, it is studied how to define quality, how to achieve good quality, how to improve quality, and how to make sure the improvement goes on as never ending cycle. A selection of quality tools is introduced. Process approach to quality management is described and compared to functional approach, which is the traditional way to manage operations and quality. The customer focus is also studied, and it is presented, that to ensure long term customer commitment, organization needs to react to changing customer requirements and wishes by constantly improving the processes. In the experimental part the theories are tested in a process improvement business case. It is shown how to execute a process improvement project starting from defining the customer requirements, continuing to defining the process ownership, roles and responsibilities, boundaries, interfaces and the actual process activities. The control points and measures are determined for the process, as well as the feedback and corrective action process, to ensure continual improvement can be achieved and to enable verification that customer requirements are fulfilled.