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823 Uppsatser om Variable Message Sign - Sida 10 av 55
Säker grannupptäck i IPv6
The IPv6 protocol offers with some new functions, one of them is auto configuration. With auto configuration it is possible for nodes, i.e. hosts and routers, for automatically associated with IPv6 addresses without manual configuration. Auto configuration it is another protocol as it uses Neighbor Discovery protocol (ND) messages (ND is mandatory in the IPv6 stack). The main purpose of ND is that nodes can discover other nodes on the local link, perform address resolution, check that addresses are unique, and check the reachability with active nodes.There are exactly the same vulnerabilities of IPv6 as IPv4 and is now exception, ND if not properly secured.
Signalist? Javisst!: En kvantitativ undersökning om signaleffekter av reklamframförande via ljud
The Swedish population is today exposed to more ads than ever. The number of advertising channels is growing, as well as the number of companies and their advertising expenses. As the products are becoming more alike, the harder it gets for the companies to convince the consumers their product is better than their competitors?. In order to succeed they need to understand what they communicate to the consumers through their different marketing activities, and how that affects the consumers? view of the brand and the product.
Asymptotiska egenskaper hos vissa kombinatoriska strukturer
In an attempt to develop a more cost-efficient material for solar energy applications, nano-particles of nickel oxide composite in a silikatmatris manufactured with solar gelmethod and studied structurally by electron microscopy. Furthermore, the thin film optical properties characterized by Variable. Angel Spectroscopic Ellipsometry. Sol gelfilms suitability as a selective absorber surface is also analyzed by optical modeling..
Utvärdering av kognitiv beteendeterapis (KBT) effektivitet : En systematisk replikation
AbstractA systematic replication study was conducted at the training site at the University of Karlstad. Student therapists performed cognitive-behavioural therapy (CBT) as a part of their master?s degree in psychology. The systematic replication that took place was based on the work of Hiltunen et al. (2013), who evaluated the efficacy of CBT treatment conducted at the training site previously mentioned.
Effektiviseringspotential inom industrisektorn : Energibesparing vid frekvensstyrning av centrifugalpumpar ? en fallstudie
The project was performed at SiemensIndustry Drive Technologies with theobjective to provide actual values forthe energy savings potential withinSiemens scope of practice.In Sweden the electrical drives standfor about 30 % of the total electricityconsumption and about 60 % of theelectricity consumption within theindustry. During the pre-study phaseelectrical drives with pump applicationswere identified as large energy users.Because of this a case study at one ofSiemens customers, Stora Enso Fors wasperformed. The system that was evaluatedduring the case study was a throttledsystem with a centrifugal pump forpumping pulp.The results yielded that a saving ofover 50 % could be achieved by replacingthe throttle valve with a variable speeddrive, a frequency converter. Thepayback period was two years and twomonths and the present value for thetotal life cycle cost of the variablespeed system was 662.566 SEK lower thanfor the throttled system. As aconsequence, Stora Enso Fors is advisedto invest in a frequency converter forregulation of the system.The general conclusion is that a focuson system efficiency is the mostimportant factor in energy efficiencyprojects and that the system regulationmethod has a large impact on the overallsystem losses and hence its efficiency.Energy efficiency potential forthrottled systems with centrifugal pumpsis large and significant economicalsavings can be made through investmentswith short payback time..
Interest rate and exchange rate impact on U.K. firms
The purpose of this paper is to apply the Dual-Effect hypothesis in Pritmani, Shome and Singal paper (2003), in order to analyze the exchange rate exposure on firms listed on the U.K. market. The study will examine if the foreign involvement of the firm will affect the share price of the firm.In addition to evaluating the Dual-Effect hypothesis in Pritmani et. al. (2003), we will evaluate the effect of foreign interest rates impact on U.K.
Att planera, genomföra och utforma en föredömlig reklamkampanj
As the field of marketing becomes increasingly competitive, creative tools to reach the intended consumer needs to be utilized. In order to break through the crowded airways and packed ad space, one can choose to direct the message through channels that relate to currenttrends in society, while using innovative artistic concepts. The fundamental purpose behind this report is to provide a roadmap for creating a successful and unique marketing campaign. In addition, we have attempted to identify how visual methods can add valuable attributes to the campaign, ensuring a more progressive and distinct impression. To illustrate our claims, we have chosen to analyze Wasabröd?s latest marketing effort, ?Change Bread,? by dividing it into three sections, including planning, execution, and the visual creation.
Utredning av behovsstyrd ventilation : En jämförelse mellan CAV och VAV
Denna rapport är ett examensarbete på C-nivå som görs i sammarbete med teknikkonsulten Ramböll. Det vanligaste sättet att ventilera en byggnad idag är med så kallad CAV-ventilation (Constant Air Volume). Denna metod bygger på att ett luftflöde bestäms för rummet och upprätthålls med konstant flöde. En annan metod är så kallad VAV (Variable Air Volume) som bygger på att flödet varierar efter behovet. Anledningen till varför man väljer VAV istället för CAV är att med CAV finns det ofta en stor risk att man överventilerar ett rum eller byggnad, just på grund av att flödet är konstant. Problemet med VAV är att det är en högre investeringskostnad än för CAV så metoden lämpar sig bara där energibesparingen är så stor så den täcker mellanskillnaden i pris.
Modellbaserad temperaturregleringav partikelfiltrets regenereringsprocess
Due to increasing regulations regarding new diesel vehicles particulate matteremissions the new Scania truck, Scania Euro 6, has been equipped with a particulatefilter. This component effectively stores the particles in the exhaust gas but must becleaned in order to prevent itself from clogging. The filter is cleaned through aprocess named regeneration which is a thermodynamic process in which thetemperature of the filter is raised through fuel supplied to the exhaust gas.The purpose of this thesis is to contribute to the development of improved controlstrategies of the temperature during the regeneration process through thedevelopment of model-based controllers. These controllers are designed in order tohave good performance in stationary as well as automatic regeneration.In order to develop these model-based controllers a model of the system isconstructed. The model is described as a linear thermodynamic grey-box model withflow varying parameters, showing good results in validation.The model provides a simulation environment during the controller design, which isfocused around the development of linear regulators with the exhaust gas mass flowas a scheduling variable whose size determines controllers? mode of operation.
Förpackningsdesign Inom Ett Exklusivt Segment
The competition amongst companies is getting tougher and the economic markets are getting even bigger with new products and businesses. One way for companies to differentiate themselves from the competitors is through packaging design. If the merchandise is to send a reliable and solid message to consumers, the attributes of the packaging must be consistent and uniform. If the different attributes are not coherent, the message loses credibility towards the consumer. Through the sent messages, the pack signals the products? expected quality and price.This paper includes two studies, in which the main objective is to discover and build understanding about Swedish consumers? perception of a product?s price depending on the pack?s design.
Chinese Remainder Theorem
Chinese Remainder Theorem is used to solving problems in computing, coding and cryptography. In computing we can compute with shorter numbers instead of large numbers and this will make the computing-process faster and easier. In coding it can be used for error-searching and error-regulating.Cryptography means that we can send a coded message and that no one will be able to read it without the decode-key which is based on prim-numbers. I am writing about the history of mathematics and how the number- and decimal number-system is used in Babylon, Egypt, Greece and in China. Abacus was a very important aid to calculate advanced mathematical problems.
They see it? it´s real : Hur fem kenyanska life skills lärare resonerar kring hiv- och aidsundervisning
The purpose of this degree project is to clarify how five Kenyan Life Skills teachers discuss about hiv and aids education. Furthermore, to reveal whether the validity claims in their verbal communication refers to facts, morality or personal experiences. This, I will study by examine the teachers knowledge of, and attitudes towards, the disease. The teaching methods they are using and the basis of their validity claims. I have chosen to use semi-structured interviews as method and the theoretical framework is based on Jürgen Habermas theory of universal pragmatics.My result shows that there is a dilemma about whether the respondents knowledge is sufficient or insufficient.
VVA-strategier för avgastemperaturhöjning på en HD-Dieselmotor
Regulations on the exhaust emissions of HD-diesel engines are becoming more and more stringent, and therefore, emission after-treatment systems are commonly used. These systems rely on catalytic conversion of NOx,CO , and HC emissions, and are thus dependant on temperature. At low load of the engine, exhaust temperatures are not sufficient for the after-treatment components. Therefore, means to increase the exhaust temperature while maintaining low emissions and fuel consumption are needed.The focus of this project has been to develop strategies for the lift profiles of exhaust and intake valves in the engine, with the goal to raise exhaust temperature in combination with low emissions and fuel consumption. The strategies have been tested in a single-cylinder research engine equipped with a hydraulic variable valve actuation system.
Kommunikation utan gränder? : en studie om problemen kring Göteborgs kulturkalas kommunikation till mångkulturella områden
Authors: Stina Johansson, Anna Lennartsson, Caroline WennerstenTutors: Peter Caesar Title: Communication without boundaries? ? a study about the problems of Gothenburg culture festival communications to multicultural areas.Keywords: communication, multucultural areas, communicationmodel, attitudes, diversity marketing, culture, Gothenburg Culture Festival Background: There can be many problems with communication in multicultural areas. It has become more important for companies to communicate in order to gain competitive advantage. Gothenburg Culturefestival has a large number of visitors and since last year they have noticed that there are not as many visitors from some multicultual areas in Gothenburg. This makes it interesting to see what kind of problems that exists in the current communication. Problem statement: What noise is there in communicating to a multicultural target group and how does they affect the goals and the result with the communication?Purpose: The purpose of this paper is based on the communicationmodel and from there describe the communication between companies and multicultural areas, and from this identify problems with such communication.Method: 118 respondents were selected through a convenience sample and then asked questions through structured interviews based on a questionnaire.
Kan relationen mellan CSR och lönsamhet stödja svenska finansbolags undermåliga samhällsansvar? - En kvantitativ studie med beaktning av endogenitetsproblemet
Introduction: The concept of CSR was first coined in the 1950?s and refers to corporate vol-untary work to contribute to a sustainable society. In Sweden, companies within the finance sector are among the worst when it comes to implementing CSR in their daily work. The debate on whether companies should engage in CSR activities or not, is extremely relevant nowadays. Right now we are facing a time where the demand on companies to take their social responsi-bility becomes more intensified.