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1517 Uppsatser om Flow regulation - Sida 51 av 102
Oxygen Health : Inlösning av syre i vatten
The project has been provided by Zenit design group and the goal for this project was tomanufacture and perform tests of a prototype that supersaturates water in a continuous flow ofwater. The project has involved finding and sorting out relevant data in scientific papers, books,communication with foreign manufactures and other platforms for information.The project has resulted in manufacturing of a test rig and an oxygen infuser based onmembrane technology. The test rigs purpose was to perform tests on oxygen infusers fordifferent comparison test and performance benchmarks in a in a laboratory provided by Zenit.The project led to satisfying results using the oxygen infuser manufactured by the authors withcomparable levels of saturation to the reference infuser.The theory behind this project is based on medical research, belonging terms will be explainedbut the authors have chosen to delimit the project from the medical area. The reason for this islack of knowledge in this area and its irrelevance to the mechanical engineering education insuch..
Svensk kod för bolagsstyrning : Efterlevnad och tillämpning ur ett oberoende perspektiv
Purpose: The purpose of this study is to present an overview of the Swedish listed companies and their compliance with the Code and its normative rules for independent decision-making. Methodology: The authors have read and delved into the Swedish Code of Corporate Governance. The authors have chosen to study the enforcement of the code based on independent bracing guidelines. The study was conducted through a combined quantitative and qualitative approach. The study is based on primary data collected in the form of companies' corporate governance reports, which have been supplemented by structured interviews.Frame of reference: Swedish ownership structure and concentrated ownership, self regulation and normative guidelines, institutional theory and earlier research on this topic.Empirical foundations: A comparison of the selected companies has been based on the independence rules of the Swedish Code of Corporate Governance. A specific company has been presented with the company's application of the code, interviews have also been done with this company to increase the understanding of the empirical basis further.Conclusions: There are several flaws with the code and how it is applied today.
Analys av faktorer som påverkar interna leveransledtider : Dimensionering av lager
It is becoming increasingly important for companies to meet customer demands due to intense competition in today's global market, that forcing companies to improve their offerings and become better at managing their supply chain (Shen et al., 2006). Long lead times can be reduced by using different methods and strategies shows various researches. Lead times occur in the planning, production, inventories and handling of products (Treville et al., 2003).The aim of the study is to develop a method to analyze the factors that affect the length of internal delivery lead time in manufacturing companies. The method also included suggestions for reducing delivery lead-time to internal customers.The main factors that influenced the length of the on delivery lead times has summarized to make a selection among the factors that can have the most significant impact. The selected elements will be used as a method to analyze how these areas affect a company?s length on internal delivery lead times.The study shows that the causes of the long delivery lead times was the location of the customer order point, uncertain forecasts, long material and production planning time, and long waits in the production and storage.The delivery lead time, according to this report?s suggested improvements reduced by centralizing CODP and makes more reliable forecasts.
Förekomsten av den genetiska varianten laktapersistens hos neolitiska grupper från Öland : The contribution of the genetic variant Lactase persistence among Neolithic people from the Baltic island Öland in Sweden
This study deals with the contribution of the genetic variant lactase persistence among Neolithic people from the Baltic Island Öland. Skeletal remains from twelve individuals went through DNA sequencing in order to find the mutation that allows adult individuals to digest milk sugar. The twelve individuals were chosen from two different Neolithic sites, where the archaeological and isotopic data suggest that the individuals from Köpingsvik were hunters and gatherers and the individuals from Resmo were early farmers. The individuals with the genetic variant lactase persistence can be described with selection and genetic flow. Only five individuals produced results and the mutation was found in two of the subjects. All the individuals who were successfully sequenced came from Resmo, whereasno individuals from Köpingsvik yielded any results.
Utvärdering av konsekvenserna för nätanslutning av vindkraftparker i Sverige vid införandet av nätkoden Requirements for Generators
Grid codes are becoming more demanding on power generating units due to the factthat the complexity of the power grid is increasing. The penetration of wind powerhas grown over the last years and it is clear that wind farms need to be addressedwith the same type of grid codes as conventional generation units. There is howeveran undeniable difference between the technology in conventional synchronousgeneration units, and the asynchronous generation units in wind farms.This thesis has reviewed the current grid code in Sweden and compared it to the newcode proposed by ENTSO-E, ?the Requirements for Generators?, in the aspect ofwind farms with an installed power of 30 MW or more. The comparison has beencomplemented by an analysis of how wind farms of two different technologies(Doubly fed induction generators and full power converters) can meet therequirements and technical proposals have been given on how to be able to meetcompliance with the new grid codes.The Requirements for Generators contains many non-exhaustive and optionalrequirements, because of this it has been difficult to, at this stage, exactly point outthe technical impact on the grid connection of future wind farms in Sweden.
Att stödja elevens övning : om tajmad minnestränings påverkan på inlärning och motivation i distansundervisning med yngre instrumentalister
En hel del av forskning inom kognitiv neurovetenskap tyder pa? att effektivare uppla?gg av repetitionstillfa?llen fo?rba?ttrar inla?rningsprocessen hos eleverna, eller ra?ttare sagt hos ma?nniskor i alla a?ldrar.Uppsatsen handlar om yngre instrumentalelevers inla?rningsprocess i relation till hja?rnans minnesfunktioner och underso?kningen fokuserar fiolundervisning pa? nybo?rjarniva?. Jag har utfo?rt ett empiriskt experiment av tajmade repetitionstillfa?llen via interaktiva onlinebaserade samtal med tre yngre elever.Alla de tre eleverna har under projektens ga?ng a?stadkommit fo?rba?ttringar av de fa?rdigheter som stod i fokus vid de tajmade repetitionerna. Experimentperioden har haft positiv inverkan pa? elevernas motivation, men deras uppna?dda fo?rba?ttringar bedo?mer jag vara av icke besta?ende karakta?r.
Magnetiska egenskaper hos Öje-Diabasen, Dalecarlia
A study of paleomagnetic remanence and anisotropy of magnetic
susceptibility (AMS) has been performed on the Öje-Diabase
in Dalarna, Sweden, and on basic dikes associated with the
alkaliquartzsyenite/granite Noran-pluton in central Sweden.
Based on isolation of directions of characteristic magnetization
in the basic rocks, a division into three different groups (A,B,C)
has been made. Group Aconsists of dolerites of Jotnian origin,
both dolerites from the Öje-Diabase and dikes associated with
the Noran-pluton are included in this group, making them coeval.
Group B is suspected to show a re-magnetization from the later part
of the Svekonorwegian orogeny. Group C belongs to the
Blekinge-Dalarna-Dolerites (BDD). Thermal demagnetization of
dolerites revealed two different types of demagnetization behaviours,
one where magnetite clearly was the source of the remanence, and an
other with a linear decrease in magnetization intensity. The measurements
of magnetic anisotropy reveals a magnetic fabric with an almost
horizontal foliation and a lineation that indicates a fairly uniform NNW/
S-SE flow direction of the magma..
Proliferativ enteropati hos gris : patogenes och patologiska förändringar
Proliferative enteropathy is a group of disease conditions in pigs where the disease may vary from subclinical to critical with bloody loose feces. The etiological agent is the obligate intracellular bacteria Lawsonia intracellularis. L. intracellularis infects enterocytes from jejunum to colon. The bacteria is taken into cells and start to replicate and cause a massive proliferation of immature enterocytes.
Vågor mot klippan? ? en intervjustudie av godmanskapet inom funktionshinderomsorgen och dess praktik
Being a trustee within the disability care will, in most cases, put big responsibility on the trustee both as a representative for the klient but also as a representative for the standards of the society. The assignment as a trustee is to strengthen the client and ease his/her way of living in the society. The Swedish legislation that controls the process and the regulation of the trustees, is by the authors of this paper preceived as kind of vauge, leaving a lot of room for interpretation. So how do trustees comprehend their assignment and how do they actually interpret it? Using material from eight interviews with trustees within the disability care, this paper aims to examine these questions, and focuses only on the trustees and their experiences.
Behovsanställning - en rättsvetenskaplig studie
According to the Employment Protection Act, the permanent employment is the main condition of employment in Sweden. Nevertheless, nowadays a large number of employers choose to apply other conditions of employment than the permanent employment in their businesses. The rapid technical development and the demands for shorter perspective investment in companies on the Swedish labour market have started the requirement for a more flexible workforce. On-call employment is one of the conditions of employment that is increasing the most. This condition of employment is adjusted by the parties on the labour market.
Hjärtfrekvensvariabilitet hos friska hundar
In healthy dogs, heart rate fluctuates during the day. Heart rate variability (HRV) reflects the autonomic nervous system´s regulation of the cardiovascular unit. Heart rate variability shows the balance between the sympathetic and parasympathetic nervous system, also called sympathovagal balance. Heart rate variability can be measured by time domain - and frequency domain analysis. In a time domain analysis you study the beat-to-beat-interval (RR-interval) in an electrocardiogram (ECG), while a frequency domain analysis can be used to determine the size of the variability.
Elektrolytlösningar som vätsketerapi hos mjölkkor med löpmagsförskjutning :
Ten cows suffering from displacement of abomasum (DA) were treated with two different electrolytesolutions. The DA cows showed symptoms typical for the disease. Four out of 10 cows had a metabolic alkalosis and two a metabolic acidosis. The cows were mildly hypocalcemic, and 9 out of 10 were mildly to moderately hypokalemic. Six out of 10 cows showed muscle fasciculations.
Läcksökning med penetrant ? kvalitetssäkring av
Vacuum box leak testing is, because of geometrical problems, not always possible andtherefore an alternate test method with dye penetrant is used. DEKRA Industrial has identifieda need for quality assurance of the method and development of a written procedure withguidelines that lead to more uniform ways of testing.A literature study was done to get a general overview of nondestructive testing (NDT) and tosee how the method is used in different applications. European and American standards werestudied. Analytical and numerical solutions, involving flow simulation, were deemed to berather difficult and beyond the scoop of this project. Thus the problems had to be solved byusing experimental methods.
Kunden har alltid rätt? : En kvalitativ studie om personalstyrning på Apoteket AB
Apotekssektorn omreglerades 2009 och Apoteket AB miste genom detta ensamrätten till att sälja läkemedel. En ny konkurrens har för Apoteket AB bidragit till en förändrad situation som inneburit att nya krav ställts både på företaget och på dess personal.Denna studie syftar till att undersöka Apoteket ABs verksamhet, efter omregleringen av apotekssektorn, med fokus på företagets personalstyrning. Undersökningen riktar sig mot hur företaget vill att deras anställda ska arbeta för att attrahera och behålla kunder. Vidare har ändamålet varit att ta reda på företagets tillvägagångsätt för att implementera detta arbetssätt i verksamheten, samt att ta reda på hur de kontrollerar att det nya arbetssättet bibehålls. För att undersöka detta har datamaterial från sju intervjuer, tre av Apoteket ABs årsredovisningar samt tjugo rekryteringsannonser analyserats.Studiens teoretiska utgångspunkt är Hochschilds (1983) teori om emotional labor, vilken handlar om hur serviceinriktade organisationer använder sig av medarbetares känslor och emotioner som en resurs.
Acceptansgränsen för solceller i lågspänningsnät : Kan den ökas?
Microproduction, also called distributed generation, is something that has become more and more popular in the electric grid. Microproduction can however lead to unacceptable performance if several units are installed in the same low voltage network. It is therefore good to know a limit where the performance of the low voltage network becomes unacceptable based on given parameters. This limit is usually called hosting capacity.In this report the hosting capacity with respect to voltage and current have been studied in three low voltage networks which are located in Falu Elnäts concession area. This has been done by simulations in a GIS-program where critical times of the grid have been simulated.