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10675 Uppsatser om Process control - Sida 17 av 712
Automatisk trimning av drivsystemreglering från MATLAB
This master thesis covers the development of an automatic tuning process for the existing speed controller for drive systems. The drive systems are resonant two-mass systems where a motor is used to drive a load connected by a shaft. The developed method relies heavily on system identification and the construction of a complete mechanical model of the process. With this approach, the common problem with poor load speed control that derives from measuring only the motor speed can be addressed and solved for a majority of such processes.The automatic tuning method has along with general test functions been implemented in a complete tool for automatic tuning, testing and performance evaluation and reporting for drive systems..
Conscientiousness, Locus of Control och Arbetsmotivation
Studien syftade till att undersöka om det finns samband mellan conscientiousness, Locus of Control och arbetsmotivation samt om ålder och anställningslängd predicerar en del av ar-betsmotivation. Studien omfattade 63 anställda (28 kvinnor och 35 män) på ett telekommuni-kationsföretag i Sverige. För att studera conscientiousness användes ett egenformulerat test med god intern homogenitet, Cronbachs alfa = 0,85. För att mäta Locus of Control och ar-betsmotivation användes redan konstruerade test med god validitet och reliabilitet, skapade av Rotter (1966) och Cammann, Fichman, Jenkins och Klesh (i Bowling & Hammond 2008). I den statistiska prövningen användes både bivariat korrelation i form av Spearmans rho och MRA-standard och hierarkisk.
Ätstörningens ansikten : en kvalitativ studie om upplevelser och erfarenheter av att kunna anpassa sig till ett friskare liv
This is a qualitative study which purpose is to examine the experiences of the recovery process after a treatment for eating disorders. The questions we have decided to examine are; how did the women adapt to a healthier life after treatment, what are the women's perceived experiences of the aspects related to identity and identity work, and what external social influence was seen as important for their adjustment process to a healthier life?Methods: We have used computer-supported and semi-structured interviews. There were a total of nine women who took part in the study. Results: Majority of these women have been recovered from their eating disorders, but some still have major or minor problems. They found it rather difficult to adjust their life's without an eating disorder.Conclusions: Increased self-awarness led to greater control over the eating disorder. The women could begin to confer the new features that they identified with.
Arbetsprocess för materialanskaffning vid Forsmarks Kraftgrupp AB
This thesis has been made on behalf of Forsmarks Kraftgrupp AB and is the final part of the education of Bachelor of Engineering in ? Innovation, production and logistics atMälardalens Högskola.Forsmark nuclear power plant is located in Östhammars municipality at the coast of Uppland. The three nuclear reactors in Forsmark together produces approximately one-sixth of Sweden?s electricity consumption each year.The background of this study is that a large number of requests come to the purchasing department with incomplete information. Usually it is in the description of what is to be acquired as the information is incomplete, but also in knowing when Quality Control-functions (QC) is supposed to be used.The aim of this work is to describe and analyse the material acquisition process.
Ung och arbetslös idag : Några arbetslösa ungdomars upplevelse av arbetslöshet
Syftet med föreliggande undersökning är att få kunskap om hur några arbetslösa ungdomar upplever sin situation som arbetslös, vilket studeras med fokus på framtidstro, sin egen förmåga/kompetens till att påverka möjligheterna att få jobb samt vilka faktorer de upplever är viktiga när det gäller att få ett jobb inom en snar framtid. Detta studeras utifrån teorierna om locus of control och self-efficacy. Två tjejer och fem killar i åldrarna 16-24 år, samtliga arbetslösa och inskrivna på Ungdomskraft, deltog i semistrukturerade intervjuer. Resultatet visade att majoriteten av ungdomarna har en hög tilltro till sina egna resurser och upplever att de själva har kontroll över sin situation som arbetslös. Vidare visade resultaten på ett mönster mellan intern locus of control och hög self-efficacy i samband med en positiv framtidstro med avseende på att få ett jobb..
Att leda det oförutsedda: en studie av fyra ledares uppfattning om sin situation, sitt ledarskap och behov av stöd i en kris
The aim of the study is to get a better understanding of leader's reactions in a crisis situation, and to examine whether locus of control and coping strategies can be related to leaders need for social support. The role of a leader in a crisis situation is complex and includes several aspects which must be illustrated to understand the leader's situation. Four leaders have participated in the study. The methods that have been used are questionnaires for measuring locus of control and coping and semi-structured interviews. The results show that search for social support cannot be seen as an outcome of a specific locus of control or coping strategy.
Dolls 4R: Ett mått på kunskapsutveckling? : En studie om bedömning av studentens kunskapsutveckling
Aim: The aim of this study was to examine a way to measure students? knowledge development by using a self-made measure instrument based on William Doll?s postmodern curriculum.Question: Is it suitable to use an self-made measure instrument based on William Doll?s post-modern curriculum theory to measure development of knowledge?Methods: The study was based on process-hermeneutics and was focused on analysingcollege students? written and oral reflective thoughts. The data was collected over three lessons, where six students? written reflective thoughts were handed in. An observation was carried out each lesson for an extra control of validity.
STYRNING I ETT FAMILJEFÖRETAG I FINANSBRANSCHEN: EN FALLSTUDIE AV E. ÖHMAN J: OR FONDKOMMISSION AB
The aim of this thesis is to examine what factors that influences the management control in a family business operating in a sector in which they are under-represented. We have therefore conducted a case study of a family business in the finance sector, E. Öhman J: or Fondkommission AB (Öhman). The first conclusion is that the management control in Öhman is influenced by the environment and the increasing size of the company. We have found, however, that it is to an even larger extent affected by the fact that it is a family business even though the company is operating in a sector in which family businesses are not the norm.
Kvalité och kontroll inom revisionsbranschen : spelar det egentligen någon roll?
Audit is a service of society that takes place in the public interest. To guarantee the quality of auditing a quality control is done with predetermined time intervals. The purpose of this paper is to investigate and analyze the concept quality and the procedure of the quality control and further to tie concepts like trust and ethics to the audit profession. To make the picture complete the paper also provides an insight regarding what deficiencies in quality, in other words failures, means to the audit profession. By performing semi-structured interviews with seven qualified auditors, active on different auditing firms in Skåne, substantial information was collected.
Ekonomistyrning i primärvården - En jämförelse mellan privata och offentliga utförare
The aim of this thesis is to analyze and explain the similarities and differences in management control between a private and a public primary care company. A comparative case study was developed based on one public and one private primary care company in Stockholm County Council. The framework of Otley (1999) was used to define and limit the area of management control systems, according to his five factors. For the analysis of the empirical results Hood's (1995) seven doctrines of New Public Management was applied, and customized to fit the purpose of the study. The results indicate that the differences between the two organizations are very limited.
Locus of Control och arbetstillfredsställelse hos män och kvinnor i privat och offentlig sektor
Syftet med undersökningen var att se om det fanns någon skillnad i Locus of Control och arbetstillfredsställelse hos män och kvinnor i privat och offentlig sektor. Antal deltagare i undersökningen var 60 där två urvalsgrupper använts bestående av privat (n = 30) och offentlig (n = 30) sektor i Blekinge och Skåne län. Mätinstrumenten som användes var ett arbetstillfredsställelseformulär och ett Locus of Control formulär. T- test, korrelationsanalys, multipel regression och tvåvägs-ANOVA användes för beräkning av data i SPSS. Slutsatser som kunde dras var att män generellt sett är mer tillfredsställda än kvinnor och att offentliganställda är mer tillfredsställda än privatanställda.
Processkartläggning samt förbättringsförslag vid Götene Stål & Verktygs AB
The purpose of this report is to come up with possible improvement suggestions to the distribution central at Götene Stål & Verktygs AB (GSV). GSV is a wholesale dealer located in Götene. The company doesn?t produce anything it self, it buys in products and sells them to customers.The distribution central at GSV is the place where the products comes in and gets ready to deliver.To come up with possible improvement suggestions we started with process mapping over the main process and the distribution centre process. The main process here is from the point where the customer gives GSV an order to the point where GSV deliver the order.Our result shows that the major problem in the distribution central at GSV is the big volume differences in the incoming goods.
Mätramar för vederlagsmätning och timmersortering på sågverk
The measuring of logs is important in the sawmills process to the sawn products. The technology of automatic wood measurement is continuance developing. This study has the purpose to see how the different techniques and the routines works of measure frames for determining of wood value and sorting in sawmills. The study is performed as a literature study and a survey. The survey includes some of the Swedish sawmills that produce more than 10 000 cubic meters sawed products per year.
Arbetsrelaterad stress inom äldrevården - Anställdas upplevelser enligt Theorells krav - kontrollmodell
Abstract
The main purpose of this study was to investigate if and how the employees in
elderly care experience stress and which underlying causes they understand to
be important in their work situation. The purpose was also to investigate
whether Karaseks and Theorells demands and control models could be used to
explain the employees feelings of stress and to see in which categories the
participants are in. Furthermore, the purpose was also to understand the
participants work situation and to describe the factors and remedies the
employees perceive to contribute to the stress levels at their workplace.
81 questionnaires were distributed at three different locations, two of which
were in Ronneby and one in Örebro. 56 people answered the questionnaires.
The result yielded that 80% of the participants felt stress during their
working hours the last few years.
The results are in agreement with the demands and control models which showed
that people with high demands and low control experienced a higher degree of
stress than people with lower demands and higher control, which corroborates
the hypothesis 1.1..
Förslag till energieffektivisering och energideklarationsunderlag : Munkebergsskolan och Bredängens äldreboende i Luleå
This examination work is performed at the institution of industrial economy and production at Jonkoping technical university, for JELD-WEN Door Solutions plant in Forserum.Today the focus in the company is on to reduce their inventories binding of capitals as well as inventory of products and that includes to get a good control of the supply and handling of material which is of great importance.JELD-WEN Door Solutions is one of the worlds leading producers of windows and doors and the head-office is located in Oregon, USA.A great number of wooden doors are manufactured by the company in varying of constructions, classifications and performance.The production of the plant in Forserum has a project- and customer focus manufacturing where only internal doors are produced. The overall market they are concentrated on is to different institution such as schools, hospitals etc.The purpose of this work is to investigate possibilities to improvement of material- and production control at JELD-WEN. The report will handle the master production schedule to and from the production divisions within manufacturing industry. Focus will be on the way for information- and material flows from arrival, transport within the company and further on to customers.Further a map of the flow was performed which gave a clearer picture of the connection between the flow of information- and material for the manufacturing process. On the basis of the mapping of the flow, the group discovered that the flow of material had some improvement potential.