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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
111

Analýza podnikových procesů za účelem výběru nového informačního systému ve zvolené společnosti / Analysis of Business Processes for the Purpose of Selecting a New Information System of the Chosen Company

Luska, Filip January 2017 (has links)
This thesis is focused on getting the summary of requirements for the new information system of joint-stock company called Zemas. For that purpose will be used analysis of individual internal and external business processes together with a schematic interpretation of flows within these processes. On the basis of identified facts suitable suppliers of the new system will be recommended.
112

Kvinnligt och manligt språkbruk i personliga brev : En kvalitativ studie om hur kvinnor och män framställer sina egenskaper i personliga brev

Ring, Linda January 2019 (has links)
In previous linguistic research, it has been found that there is an indirect relationship between gender and language usage. It has also been found that men and women use language in a distinctive way in their work role. There is a lot of research, both in the gender sciences but also in the linguistics, which has examined the difference in how men and women express themselves in writing. How the difference between the sexes can also be seen from a writing perspective is something that interests me and so in my study I chose to look at how men and women express themselves and portray themselves in personal letters. It is an area that interests me and looking at personal letters to job ads is something that there is not so much previous science around and I believe that more science in this specific area may be supportive in recruitment in the labor market in the future. The aim of my study is to see if there are differences in how men and women portray their characteristics in personal letters. My study is based on the following questions: Are person´s characteristics portrayed in personal letters by means of material or relational processes depending on gender? How do men and women portray their characteristics in personal letters versus the job advert´s qualifications? With the help of SFG and Impression Management I got answers to my questions. My study links to theories around SFG where the focus is mainly on processes. The study also links to Impression Management and Hirdman´s (1998) theory of the gender system. The results of my study show that there are differences between how men and women express themselves in writing. Women often produce their characteristics through relational processes and thus identify themselves with their characteristics. Men have a tendency to express their characteristics through material processes, which means that they identify themselves through actions. In contrast, my results do not support previous research that says that women appear more sensitive and vague while men appear more powerful. My results also show that women express more characteristics than men who are also linked to the job advertisement qualifications.
113

Dokumentenbasierte Steuerung von Geschäftsprozessen

Reichelt, Dominik January 2014 (has links)
Geschäftsprozesse im Verwaltungs- und Dienstleistungsbereich werden häufig durch den Eingang von Dokumenten angestoßen. Hierfür ist es unerlässlich, dass sie den richtigen Mitarbeiter im Unternehmen oder der Organisation erreichen. Oftmals sind jedoch dem externen Sender die internen Organisationsstrukturen nicht klar, so dass eine zentrale Stelle angeschrieben wird. Diese muss dann das Dokument, basierend auf seinem Inhalt, an die zuständigen Kollegen weiterleiten. Dies kann beträchtlichen personellen Aufwand mit sich bringen. In der Forschungsarbeit wird ein System entwickelt, das diese Aufgabe maschinell erfüllen soll. Hierzu werden verschiedenartige Klassifikationsverfahren erprobt und hinsichtlich ihrer Verlässlichkeit beurteilt. Weiterhin werden Verbesserungen gegenüber gängigen maschinellen Verfahren angestrebt.
114

The Use of Big Data in Process Management : A Literature Study and Survey Investigation

Ephraim, Ekow Esson, Sehic, Sanel January 2021 (has links)
In recent years there has been an increasing interest in understanding how organizations can utilize big data in their process management to create value and improve their processes. This is due to new challenges for process management which have arisen from increasing competition and the complexity of large data sets due to technological advancements. These large data sets have been described by scholars as big data which involves data that are so complex traditional data analysis software are not sufficient in managing or analyzing them. Because of the complexity of handling such great volumes of data there is a big gap in practical examples where organizations have incorporated big data in their process management. Therefore, in order to fill relevant gaps and contribute to advancements in this field, this thesis will explore how big data can contribute to improved process management. Hence, the aim of this thesis entailed investigating how, why and to what extent big data is used in process management. As well as to outline the purpose and challenges of using big data in process management. This was accomplished through a literature review and a survey, respectively, in order to understand how big data had previously been used to create value and improve processes in organizations. From the extensive literature review, an analysis matrix of how big data is used in process management is provided through the intersections between big data and process management dimensions. The analysis matrix showed that most of the instances in which big data was used in process management were in process analysis & improvement and process control & agility. Simply put, organizations used big data in specific activities involved in process management but not in a holistic manner. Furthermore, the limited findings from the survey indicate that the main challenges and purposes of big data use in Swedish organizations are the complexity of handling data and making statistically better decisions, respectively.
115

The Disguised Variable - The Influence of Russian Elite Clans on Russian Foreign Policy

Deksnys, Domininkas January 2020 (has links)
This paper analyzes the influence of Russian elite clans on Russian foreign policy-making. The goal of this paper is to discover the missing link that connects the changes in the International System to the formation of Russian foreign policy, more specifically the Russo-Georgian War, the occupation of Crimea, and the intervention in Syria. Therefore, the theory of neo-classical realism is applied to a systematic process analysis in order to trace the chain of causal relations in which the struggle of elite clans influences foreign policy-making. The combination of neo-realism and state capacity analysis complements the approach of neo-classical realism. This paper argues that the beliefs of the elite clans play an important role in shaping Russia’s foreign policy. The elite clans struggle to establish themselves and consolidate their power within the Russian government structures, which affected the shift from pragmatism and a multipolar approach to a transimperialist approach in Russian foreign policy.
116

Risk Management for Persons with Serious Mental Illness: A Process Analysis of Washington State Department of Corrections' Tools

Tobin, Martin James 28 October 2019 (has links)
No description available.
117

Einsatz von Prozessanalyse und Qualitätsregelkreisen zur Fehlervermeidung in der Fertigung von Gasdiffusionslagen

Müller, Richard 14 February 2019 (has links)
Aufgrund des weltweit steigenden Energiebedarfs, dessen Deckung derzeit größtenteils auf fossilen Brennstoffen basiert, ist es nötig geworden, die Entwicklung alternativer Möglichkeiten zur Erzeugung von Elektroenergie als Primärenergie voranzutreiben. Eine dieser alternativen Möglichkeiten ist die Brennstoffezellentechnologie, welche sowohl in stationären als auch mobilen Anwendungen zum Einsatz kommen kann. Ihrer weitreichenden Verbreitung stehen bislang die aufgrund des großen Fertigungsaufwandes hohen Herstellungskosten der benötigten Komponenten im Wege. Hierzu zählen die Gasdiffusionslagen des weit verbreiteten Typs der wasserstoffbetriebenen Polymerelektrolytbrennstoffzelle. Es treten zwischen den einzelnen Fertigungsschritten im Herstellungsprozess dieser Gasdiffusionslagen Wechselwirkungen auf, die zu unerwünschten Materialveränderungen führen. Die Ursachen dieser Wechselwirkungen sind nicht vollends verstanden. Eine Vertiefung des Verständnisses der Herstellungsprozesse soll die Grundlage für eine Optimierung der Prozessführung bilden. Es sollen eine Kostenreduktion sowie eine Leistungssteigerung der Gasdiffusionslagen ermöglicht werden.:1 Einleitung 1 2 Stand der Technik 5 2.1 Brennstoffzellen 5 2.2 Gasdiffusionslagen 11 3 Problemstellung und Zielsetzung 17 4 Analyse und Klassifizierung von GDL-Fehlern 20 4.1 Fehlerklassifizierung 22 4.2 Fehleridentifizierung 26 4.3 Auswahl zu analysierender Fehlerbilder 27 4.4 Charakteristika der ausgewählten Fehlerbilder 42 4.4.1 Bahndeformationen 42 4.4.2 Umlaufende Verdickungen von Wickeln in Umfangsrichtung 44 4.4.3 Längs- und Queraufrauhungen sowie Rauhspuren 45 5 Theoretische Grundlagen 49 5.1 Physikalische und mechanische Grundlagen 49 5.1.1 Zug-, Biege- und Druckspannungen in Warenbahnen 49 5.1.2 Elastizitäts- und Kompressionsmoduli 52 5.1.3 Elastizität und Plastizität 53 5.1.4 Umformmechanismen im GDL-Basisvliesstoff und Versagensarten von Fasern 54 5.2 Statistik 55 5.2.1 Korrelationsanalyse 55 5.2.2 Regressionsanalyse 56 5.2.3 Zweistichproben-t-Tests und Konfidenzintervalle 56 5.2.4 Stichprobenumfang 57 5.3 Qualitätsregelkreise 58 6 Eingesetzte Untersuchungsmethoden 60 6.1 Mechanische Eigenschaften 64 6.1.1 Höchstzugkraft und Höchstzugkraftdehnung 64 6.1.2 Elastizitätsmodul und Kompressibilität 66 6.1.3 Elastische und plastische Deformation bei Zugbelastungen 67 6.1.4 Flächenmasse 70 6.1.5 Biegesteifigkeit 72 6.1.6 Dickenmessung 74 6.2 Thermische Eigenschaften 75 6.2.1 Wärmeleitfähigkeit 75 6.3 Bildgebende Verfahren 78 6.3.1 Schliffbildmikroskopie 78 6.3.2 Rasterelektronenmikroskopie 78 6.3.3 µ-Computertomographie 79 7 Herstellungsverfahren der untersuchten Gasdiffusionslagen im Überblick 81 8 Basisvliesstoffherstellung 84 8.1 Prozess der Vliesbildung und Verfestigung 84 8.2 Charakterisierung des GDL-Basisvliesstoffes 90 8.3 Fehlerbilder des GDL-Basisvliesstoffes 103 9 Dickenkalibrierung 113 9.1 Prozess der Dickenkalibrierung des GDL-Basisvliesstoffes 113 9.2 Charakterisierung des dickenkalibrierten GDL-Basisvliesstoffes 120 9.3 Fehlerbilder des dickenkalibrierten GDL-Basisvliesstoffes 130 9.3.1 Prozessbeobachtung 130 9.3.2 Hypothesenbildung und Verifikation 135 9.3.3 Maßnahmen zur Fehlervermeidung 146 10 Carbonisierung 156 10.1 Prozess der Carbonisierung 156 10.2 Charakterisierung carbonisierten GDL-Substrates 157 10.3 Fehlerbilder im Carbonisierprozess 163 11 Data Mining für die GDL-Herstellung 167 11.1 Datenerhebung 167 11.2 Auszuwertende Parameter 172 11.3 Ergebnisse der Parameteranalysen 173 12 Qualitätsregelkreise zum GDL-Produktionsprozess 178 12.1 Wulstbildung und Längsaufrauhung 178 12.2 Queraufrauhung 181 13 Zusammenfassung und Ausblick 184 14 Literaturverzeichnis 186 15 Abbildungsverzeichnis 192 16 Abkürzungsverzeichnis 201 17 Formelverzeichnis 203 18 Anlagenverzeichnis 204 / Due to worldwide increasing energy consumption, which is mainly covered by fossile fuels nowadays, it has become a necessity to further develop alternative possibilities to create electricity as primary energy. One alternative technology to accomplish this is fuel cell technology which can be used in stationary as well as in mobile applications. One aspect hindering its widespread use is the high manufacturing cost of the needed components due to the complicated production processes. Among these are gad diffusion layers of the commonly used hydrogen-driven polymer electrolyte fuel cells. There are interactions occurring between the several production steps leading to unwanted changes in material properties. The causes of these interactions are not completely understood. A deeper understanding of these shall be the basis for optimizations in process design and therefore cost reductions and improvements in performance of gas diffusion layers can be achieved.:1 Einleitung 1 2 Stand der Technik 5 2.1 Brennstoffzellen 5 2.2 Gasdiffusionslagen 11 3 Problemstellung und Zielsetzung 17 4 Analyse und Klassifizierung von GDL-Fehlern 20 4.1 Fehlerklassifizierung 22 4.2 Fehleridentifizierung 26 4.3 Auswahl zu analysierender Fehlerbilder 27 4.4 Charakteristika der ausgewählten Fehlerbilder 42 4.4.1 Bahndeformationen 42 4.4.2 Umlaufende Verdickungen von Wickeln in Umfangsrichtung 44 4.4.3 Längs- und Queraufrauhungen sowie Rauhspuren 45 5 Theoretische Grundlagen 49 5.1 Physikalische und mechanische Grundlagen 49 5.1.1 Zug-, Biege- und Druckspannungen in Warenbahnen 49 5.1.2 Elastizitäts- und Kompressionsmoduli 52 5.1.3 Elastizität und Plastizität 53 5.1.4 Umformmechanismen im GDL-Basisvliesstoff und Versagensarten von Fasern 54 5.2 Statistik 55 5.2.1 Korrelationsanalyse 55 5.2.2 Regressionsanalyse 56 5.2.3 Zweistichproben-t-Tests und Konfidenzintervalle 56 5.2.4 Stichprobenumfang 57 5.3 Qualitätsregelkreise 58 6 Eingesetzte Untersuchungsmethoden 60 6.1 Mechanische Eigenschaften 64 6.1.1 Höchstzugkraft und Höchstzugkraftdehnung 64 6.1.2 Elastizitätsmodul und Kompressibilität 66 6.1.3 Elastische und plastische Deformation bei Zugbelastungen 67 6.1.4 Flächenmasse 70 6.1.5 Biegesteifigkeit 72 6.1.6 Dickenmessung 74 6.2 Thermische Eigenschaften 75 6.2.1 Wärmeleitfähigkeit 75 6.3 Bildgebende Verfahren 78 6.3.1 Schliffbildmikroskopie 78 6.3.2 Rasterelektronenmikroskopie 78 6.3.3 µ-Computertomographie 79 7 Herstellungsverfahren der untersuchten Gasdiffusionslagen im Überblick 81 8 Basisvliesstoffherstellung 84 8.1 Prozess der Vliesbildung und Verfestigung 84 8.2 Charakterisierung des GDL-Basisvliesstoffes 90 8.3 Fehlerbilder des GDL-Basisvliesstoffes 103 9 Dickenkalibrierung 113 9.1 Prozess der Dickenkalibrierung des GDL-Basisvliesstoffes 113 9.2 Charakterisierung des dickenkalibrierten GDL-Basisvliesstoffes 120 9.3 Fehlerbilder des dickenkalibrierten GDL-Basisvliesstoffes 130 9.3.1 Prozessbeobachtung 130 9.3.2 Hypothesenbildung und Verifikation 135 9.3.3 Maßnahmen zur Fehlervermeidung 146 10 Carbonisierung 156 10.1 Prozess der Carbonisierung 156 10.2 Charakterisierung carbonisierten GDL-Substrates 157 10.3 Fehlerbilder im Carbonisierprozess 163 11 Data Mining für die GDL-Herstellung 167 11.1 Datenerhebung 167 11.2 Auszuwertende Parameter 172 11.3 Ergebnisse der Parameteranalysen 173 12 Qualitätsregelkreise zum GDL-Produktionsprozess 178 12.1 Wulstbildung und Längsaufrauhung 178 12.2 Queraufrauhung 181 13 Zusammenfassung und Ausblick 184 14 Literaturverzeichnis 186 15 Abbildungsverzeichnis 192 16 Abkürzungsverzeichnis 201 17 Formelverzeichnis 203 18 Anlagenverzeichnis 204
118

Development of training material for a process analysis tool in the paper industry / Utveckling av ett utbildningsmaterial för ett processanalysverktyg inom pappersindustrin

Kristoffersson, Sara January 2020 (has links)
Paperboard is accessible for everyone, such as packaging for provisions or beauty products. Paperboard consists of several layers of pulp and has different types of qualities depending on the material’s area of use. Within the paperboard production, the process behavior is analyzed to find solutions to decrease the product variations in order to reach the desired product results. Process analyses are continuously made to improve paperboard production and avoid defects in the paperboard product. The company Holmen has recently implemented a new process analysis tool on trial, named Wedge, at the paperboard mill in Workington, UK, which is a software tool that can be used for analyzing the paperboard process. Holmen’s vision was to develop training material for the software tool that could be used by the employees for educational purposes.The purpose of this project degree was to develop training material of the process analysis tool, i.e. the software Wedge, for novice learners. Initially, the purpose was to examine and identify the employees’ learning within the software tool at the mill in Workington. Based on that, training material was developed that could be used for self-directed learning material.The study was conducted through qualitative methods, which included a group interview with development engineers and a one-to-one interview with the training manager at the Workington mill. Additionally, observations of training opportunities and an evaluation questionnaire of the training material were used in this study. Based on these results, a thematic analysis was conducted where identified themes have been interpreted from aspects of cognitive learning and adult learning.The result is based on the qualitative survey and the analysis of the interviews and questionnaire responses indicates that the training material is suitable and pedagogical for novice learners. The development engineers mean, among other things, that computer-based training should contain ‘step-by-step’ examples of work-related situations and the training must be organized such that new information will not be overwhelming and unintelligible. It is also important that new knowledge or information can be acquired both visually and by text-based instructions, to be able to provide the learners with various kinds of teaching aids since there are different approaches to learn new knowledge. Therefore, the training material based on e-learning has been designed as a first lesson of how to use and navigate in the process analysis tool. The developed training material entails four interactive videos with incremental learning of how the process analysis tool can be used in the paper industry. / Materialet kartong är något alla har till hands, som exempelvis förpackningar för proviant eller skönhetsprodukter. Kartong består av flera lager av pappersmassa och har olika typer av kvalitéer beroende på materialets användningsområde. Inom produktionen görs analyser av kartongprocessens beteende för att hitta lösningar som minskar produktvariationerna och på så sätt uppnå önskade slutresultat. Processanalyser görs kontinuerligt för att förbättra kartongproduktion och därmed undvika produktdefekter. Företaget Holmen har implementerat ett nytt processanalysverktyg, så kallat Wedge, på deras kartongbruk i Workington, UK, vilket är en programvara som kan användas för att kunna göra analyser av kartongprocess. Holmen önskade att ett utbildningsmaterial för programvaran skulle utvecklas och kunna användas i utbildningssyfte för produktionsarbetarna.Syftet med detta examensarbete var att utveckla ett utbildningsmaterial för nybörjare av processanalysverktyget Wedge. Grunden till detta låg i att undersöka och identifiera de anställdas lärande utifrån programvarans utbildning på kartongbruket i Workington. Baserat på detta utvecklades ett utbildningsmaterial som kan användas som ett självstuderande lärandemedel.Undersökningen har utförts av kvalitativa metodval som innefattar en gruppintervju med utvecklingsingenjörer och en intervju med utbildningsansvarig på kartongbruket i Workington, samt observationer av utbildningstillfällen och enkäter för utvärdering av utbildningsmaterialet. Baserat på detta har en tematisk analys genomförts där identifierade teman har tolkats utifrån ett kognitivt lärandeperspektiv och vuxnas lärande.Resultatet baseras på den kvalitativa undersökningen och analys av intervjuerna och enkäterna visar på att utbildningsmaterialet är passande och ligger på en bra pedagogisk nivå för nybörjare. Utvecklingsingenjörerna önskar bland annat att en datorbaserad utbildning ska innehålla förberedda ’steg-för-steg’-exempel utifrån verklighetsbaserade problem samt att utbildning måste organiseras sådan att ny information inte blir överväldigande och svårförståelig. Det är även viktigt att ny kunskap och information kan fås både visuellt och textbaserat, och att en blandning mellan olika läromedel finns eftersom personer har olika strategier för att lära sig ny kunskap. Utifrån detta har ett utbildningsmaterial, baserat på e-lärande, utvecklats och skapats med ändamålet att fungera som en första lektion av hur en kan använda och navigera i processanalysverktyget. Det utbildningsmaterial som har utvecklats innefattar fyra interaktiva videos som är uppbyggda för stegvis inlärning om hur processanalysverktyget kan användas i pappersindustrin.
119

Integrating Chemical Looping Gasification for Hydrogen Generation and CO2 Capture in Pulp Mills / Integrering av Chemical Looping Gasification för Generering av Vätgas samt CO2 Infångning på Massabruk

Palmér, Matilda January 2022 (has links)
Utsläpp av CO2 till atmosfären bidrar till ökningen av globala temperaturer. Industrisektorn står för 20 % av utsläppen och utav dessa kommer 6 % från pappers- och massaindustrin. För att lyckas minska den globala temperaturhöjningen till under 1,5 °C hjälper det inte bara att minska utsläppen. Även negativa utsläpp måste genereras. Syftet med denna studie är att undersöka implementeringen av CLG för att separera CO2 på ett energieffektivt sätt och samtidigt generera H2 och elektricitet. Processanalyser genomfördes för att undersöka möjligheten att implementera CLG-processen till ett typiskt massabruk. Processmodeller togs fram for att undersöka CLG, värmeåtervinning samt elektricitetsgenerering. Processmodellerna utvecklades med hjälp av Aspen Plus och Aspen HYSYS. De framtagna modellerna analyserades sedan med avseende på olika designparametrar inom CLG-processen. På ett typiskt massabruk som producerar 800 000 adt varje år kan 375 kg CO2/adt separeras och då uppnå negativa utsläpp, genom att byta ut multi-fuel forsrännaren med en CLG process. Den framtagna processmodellen skulle också kunna generera 360-504 kWh/adt av H2 beroende på de designparametrar som används för CLG-processen. Enligt modellen kan värme som återvinns från processen användas för att fånga upp ytterligare 13 % av CO2 från andra delar av bruket. Processanalys för olika designparametrar inom CLG systemet så som temperatur, luftflöde och flödet av syrgasbärare har presenterats. Nyckeltalen som undersöktes var den mängd CO2 som kunde fångas upp, mängd H2 genererad samt överskottet av elektricitet som produceras när multi-fuel förbränningen byts ut mot en CLG-process på ett typiskt massa bruk. / Emissions of CO2 to the atmosphere are contributing to the global temperature rise. The industrial sector contributed to 20 % of the emissions and out of that, 6 % are generated from the pulp and paper industry. To limit the temperature increase below 1,5 °C, the emissions not only need to be reduced but also negative emissions should be generated from different sectors. The purpose of this study is to realize the implementation of Chemical Looping Gasification (CLG) to separate CO2 (for permanent storage) in an energy-efficient way while co-generating H2 as well as electricity. Process analysis was carried out to investigate the possibility of substituting the multifuel boiler in a typical pulp mill with a CLG process. Process models for the CLG, heat recovery and electricity generation process were developed using AspenPlus and Aspen HYSYS. The process was analysed for different design conditions (temperature, autothermal condition, air flow, oxygen carrier flow) in the CLG process. It was found that in a typical pulp mill producing 800 000 adt per year, 375 kg- CO2/adt (14 % of total emissions from the process) can be inherently separated for storage to achieve negative emissions, if the multi-fuel boiler is replaced with a CLG unit. This process will also be able to generate 360-504 kWh/adt H2 depending on the design conditions in the CLG process. Heat recovered from the CLG unit can be utilized in capturing approximately 13 % additional CO2 from other sources in the pulp mill. Process analysis for different design conditions in CLG (temperature, airflow, oxygen carrier flow) have been presented. The key performance indicators were CO2 capture rates, H2 generated and net electrical output from the process.
120

Collaboration in Environmental Education: A Technical Communication Internship with The Ohio Wyami Appalachian Teacher CoHorts (OWATCH)

Shellabarger, Scott S. 20 April 2007 (has links)
No description available.

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