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9144 Uppsatser om Speed reduction method - Sida 9 av 610
Biomass losses during short-term storage of bark and recovered wood
Storage of biomass is associated with problems like heat development, biomasslosses, and reduction of the fuel quality. Certain processes such as biological- andchemical degradation are responsible for these storage problems. This master?sthesis was carried out at Vattenfall Research and Development AB and is alignedtowards quantifying the biomass losses from short-term storage (1-2 months) ofbark and recovered wood. The biomass was stored in outdoor piles during differentseasons, campaign 1 (summer) and campaign 2 (autumn).
Kartläggning och effektivisering av ljuddämparflöde
In 2013 a new emission standard for heavy trucks was introduced and hence a number of new parts was brought in to Scania CV AB. This created a need for modifications in the silencers flow. The flow is highly complex involving several suppliers, call off methods and different models of silencers. The aim for this project was to improve the existing silencers flow. The flow, from supplier to assembling, has therefore been mapped.
Reproduktionens inverkan på det slutliga tryckresultatet med djuptryck på MF-papper
To get an optimal print result with rotogravure on improved newsprint, MF-paper, knowledge aboutwhat adjustment that should be done through the whole production is needed. This degree project investigatesthe reproduction?s effect on the final print result.A test print is done at Quebecor World Nordic Interprint´s regular print unit. The evaluation of theprint shows how important the use of a unit adjusted ICC-profile is for the print quality. A comparisonbetween the two separation methods GCR and UCR shows that Interprint´s present ICC-profile, usingUCR as separation method, gives less missing dots.
Att Vara eller inte Vara - invånarnas image av Vara kommun
I dagens samhälle handlar det mycket om att företagen måste se över sin effektivitet ochtillhörande målfokusering för att vara konkurrenskraftiga. Det ökade intresset förmålstyrning och strategiverktyg, ger upphov till ständig utveckling av instrument som tillexempel det balanserade styrkortet.En stor del av processen i styrningen av företaget, handlar om att fördela resurser på bästa sättoch samtidigt ta hänsyn till flera faktorer i organisationen. Det balanserade styrkortet är enstyrmodell där man med stöd av mjuka och hårda styrtal, det vill säga finansiella och ickefinansiellamått, kan styra organisationen. Dessa ska samverka för företagets framtida mål.Det är med andra ord oerhört centralt att alla medarbetare är väl införstådda med företagetsvision och strategier. Tillsammans ses de som den huvudsakliga kärnan i styrmodellen.Genom styrkortets utformning kan man med enkla medel ta fram vägledande feedback, sompå lång sikt ska leda till att företaget når upp till den uppsatta visionen.
Bakteriereduktion i diskmaskiner : Studie av olika metoder för att reducera bakterier
Bacteria are a problem that occurs naturally in dishwashers when the dish stands there dirty for an extended period of time. To get rid of the unpleasant smell that the bacteria is causing, the most common solution is to run a regular washingcycle which can cause problems for the environmentally-conscious consumers since this causes unnecessary energy waste and emissions of chemicals in the washwater. To solve the problem in a more environmentally-friendly way by directly attacking the bacteria with an appropriate bacterialreductionmethod can therefore be an attractive feature in a dishwasher. There are many different ways to treat surfaces that have been exposed to the bacteria. Some high-profile methods are UV-radiation, microwaves and oxidant (ozone) that all three have had success in reducing bacteria in different contexts.
"Got Skills...?" : En kvalitativ studie om kompetensutveckling baserat pa? StarCraft II
The use of computer games has grown exponentially in the past few years and StarCraft II is one of the most popular e-sports today, played by millions of people worldwide. This study investigates the game?s effect on skills, as perceived by the players of StarCraft II.The study was conducted by using an empirical survey and interviews. The skills being investigated were both physical and mental in their nature. The conclusion was that the majority of players perceived that their skills regarding reaction speed, multitasking, APM, analysis and strategy were increased the most, while there was a smaller change in social skills and language skills.
Fördelning av frambensskador på ytliga böjsenan hos galopphästar :
Superficial digital flexor tendon injuries are common causes of premature retirement or pre-longed convalescence periods for race horses. The curve gradient at Täby Galopp race track is very small and most races as well as high speed training are done on the left rein.
It is believed that the horses left foreleg is under considerably more strain then the right foreleg when being ridden on the left rein during gallop at high speed. During gallop on the left rein the horse puts its entire weight on the left foreleg when regaining ground contact.
The purpose of this study has been to find out, through analyzing the statistics concerning the horses that visited the ATG clinic at Täby during a period between January 2003 and September 2006, whether there is a higher frequency of superficial digital flexor tendon injuries on the left leg rather than the right and if so, can this support the theory that the design of the race track in combination with continuous left rein races can be a contributing cause of these injuries.
The result of the study shows that 57% of the tendon injuries occurred on the left front leg and 38% on the right front leg. The difference is not large enough to support the above theory of the underlying cause of these injuries..
RCC-Jordfelsskydd, mätmodul för övertonsanalys
The majority of all power cuts that affects individuals and communities are caused by earth faults on the power transmission lines at 10kV and 20kV level [1]. If these power cuts could be eliminated, less disturbances and interrupts would lead to large amounts of money savings.Swedish Neutral has developed such a protection system. When an earth fault occurs power is injected into the neutral point of the transformer. The RCC (Residual Current Compensation) protection calculates a compensation current exactly 180 degrees out of phase to the fault current. Doing this, the voltage at the fault location becomes very close to zero, without affecting the power transmission.The protection system can only compensate automatically for the fundamental frequency (50Hz), and manually for the 3rd, 5th, 7th and 9th harmonics.
Utsikt från höghastighetståg : om reseupplevelsens krav på landskapet
As we travel more and more by train it becomes increasingly important
that the time we spend traveling, is of great quality. This has been the foundation of this master thesis and has shaped the outcome of it. The traveling experience, that is, the experience of the landscape that flashes by outside the train window, is an important aspect in railway planning and an aspect that should be taken into greater consideration. The purpose of this master thesis has been to examine how to compose or improve the travel experience for an already planned high speed railway and how the travel experience can be combined with other aspects, which have claims on the landscape. This thesis is based on a literature study and a case study of Ostlänken.
The work describes Ostlänken, a planned high speed railway in Sweden between Järna and Linköping, with top speeds at 300-320 kilometers per hour.
Handelsrelaterat Tekniskt Bistånd - Ett effektivt medel för fattigdomsreducering?
Abstract This essay discusses whether or not the technical assistance given by The WTO will effect the reduction of poverty in LDCs. The liberalization of trade is considered to be one of the main forces behind economic growth and the reduction of poverty. Can trade reduce poverty?The WTO formed The Integrated Framework pro to the Doha Round in 2001 to assist the LDCs in aiding them implement the WTO's framework. Has this implementation been effective?The WTO also created The EPRP program to the Doha Round in order to create poverty reducing projects amongst developing countries.
Reducering av produktionstryck i A-linan : Förflyttning av produkt
In the production of pulp, paper and cardboard, a large amount of water is used daily. The water has to be purified in the internal purifying plant before it reaches the receiving body of water. In the biological purifying stage at the Stora Enso Skoghall mill, an aerated basin is used where the microorganisms, using oxygen, oxidize the organic material to carbon dioxide. The air is pumped from the bottom of the basin and the oxygen can then be transported from the air bubbles to the water through diffusion. The problem with aeration of waste water from the forest industry is that wood residues, such as fatty acids, are making the transport of oxygen in water more difficult.
Balanserat styrkort ? ett strategiverktyg även för tjänsteföretag
I dagens samhälle handlar det mycket om att företagen måste se över sin effektivitet ochtillhörande målfokusering för att vara konkurrenskraftiga. Det ökade intresset förmålstyrning och strategiverktyg, ger upphov till ständig utveckling av instrument som tillexempel det balanserade styrkortet.En stor del av processen i styrningen av företaget, handlar om att fördela resurser på bästa sättoch samtidigt ta hänsyn till flera faktorer i organisationen. Det balanserade styrkortet är enstyrmodell där man med stöd av mjuka och hårda styrtal, det vill säga finansiella och ickefinansiellamått, kan styra organisationen. Dessa ska samverka för företagets framtida mål.Det är med andra ord oerhört centralt att alla medarbetare är väl införstådda med företagetsvision och strategier. Tillsammans ses de som den huvudsakliga kärnan i styrmodellen.Genom styrkortets utformning kan man med enkla medel ta fram vägledande feedback, sompå lång sikt ska leda till att företaget når upp till den uppsatta visionen.
Björkbarksextrakt, BBE : en lönsam lösning på betningsproblematiken?
The calculations in this thesis are evaluating the profit as a consequence from treating young stands of pine in Sweden with birch bark extract, BBE. Treatment is to be done with the object to lower or fully reduce the moose browsing on pine. The study is made in three versions. The results from each version separately will follow below.
Version I.: The size of the moose population is in no way affected by the reduced resources of food as a consequence of large scale treatment with BBE on pine. Results show profit at a 3 percent level of interest with the exception of treatment program with more than 4 treatments all together and with the exception of Västerbottens Län with an early first treatment.
Version II.: The population of moose decrease from 10 to 5 individuals per 1000 ha as a consequence from large scale treatment with BBE on young pine stands.
ZigBee-teknikens möjligheter att trådlöst överföra EKG-signaler
In many clinical applications, it is desirable to transmit sensor information wireless. In earlier research, investigation transmit ECG signal using Bluetooth, was performed. However, when Bluetooth has some drawbacks it is of interest to investigate alternative methods, one such method is ZigBee. Bluetooth has higher data rate speed (1Mbps) than ZigBee (250kbps). However, Bluetooth consumes more power.
Undersökning av steady state och utvärdering av valskraft och friktion vid kallvalsning av aluminium
The purpose with this thesis was to examine the cold rolling mill located at Högskolan Dalarna and to stabilize the rolling process, to achieve steady state. Experiments with cold rolling of an aluminium strip have given results for rolling force, friction, reduction, strip tension and strain hardening. Results show that steady state has been found for the experiments with roll force and strain hardening, and not been found for the experiments with friction and reduction. Results show that increased strip tension gives lower roll forces. The roll force equation of Stone shows comparable results with reality for dry contact with reductions up to 30 %, but starts being incomparable with higher reductions.