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3947 Uppsatser om Transport control tower - Sida 23 av 264
Hastighets- och positionsinterface för motorer
The environmental requirements and laws on combustion engine emissions are very tough today andthey will become even more stringent in the future. To achieve these requirements there are highdemands on the control systems for these engines. An improved precision in the measurement of anengine's speed and position gives the electronic control system an even better timing when it comes tofuel injection and ignition. This makes the engine more fuel efficient, reducing the emissions. This thesisis part of a collaborative project between Hoerbiger Control Systems and subsidiaries.
Vad väljer du? En undersökning av beteendepåverkande åtgärder för att skapa hållbara transportsystem
Människors transportvanor skapar idag tillsammans med andra faktorer ohållbara transportsystem. Jordens befolkning använder färdmedel som förbrukar icke förnybar energi i allt större utsträckning, vilket skapar transportsystem som inte är hållbara. Dessa faktorer medför en stor miljöpåverkan på vår jord och om vi fortsätter på samma sätt som de senaste 60 åren belastas jordens kretslopp allt mer, för att slutligen upphöra att fungera.Infrastrukturen idag motsvarar de behov och krav människor har på sin transportmiljö och dessa vanor bygger till stor del på vår historiska tradition av transport. Denna historiska tradition motsvarar inte ett långsiktigt tänkande. De beteenden och levnadsvanor vi har idag påverkar kommande generationers livsmiljö, vilken kommer att äventyras om vi fortsätter på samma sätt.
Busshållplatsers kapacitet : Utvärdering av tillämpbarhet av modell från Highway Capacity Manual 2000 med uinderlag från busstrafik i Stockholms innerstad
Stockholm is growing with almost two fully loaded SL-buses a day. One of the consequences that derive from this is the increase of public transport travelers who put the regionally governed public transport up to the test in terms of its capacity. The Transport administration in Stockholm County initiated 2015 a project with the purpose of simplifying the calculation of bus stop capacities. A hypothesis (set up by the Transport administration) based on that a model for calculation of bus stop capacities could be calibrated for Stockholm conditions is being researched in this bachelor?s essay.The study is implemented by self-collected traffic data from bus stops located in the Stockholm city center.
Spridning av släckvattenpartiklar : En studie på spridning av partiklar genererade från brand
During a fire large amounts of particles and unhealthy agents occur. Polyaromatic hydrocarbons (PAH) and toxic metals are examples among many others. These agents have a capacity to bond to particles and when the fire is extinguished, the particles can be transferred with the extinguish water into the soil and to the groundwater.Recent studies in particles have been conducted. A study by Ulrika Iverfelt (2014) reviled that the particles from a fire contained large amounts of both PAH and metals, which is consistent with earlier analyses. Her column experiments with particles in the size ? 11 microns and ?100 microns in silica sand, reviled that the larger particles was immobilized because the transportation was influenced by sieving or physiochemical particle and surface interactions.The transport of the particles in soil and groundwater is regulated by two main mechanisms: physiochemical surface interactions and straining.
Engångs- eller returtransportförpackningar i livsmedelsbutiker
Master thesis for Mechanical engineering, at the University of Lund. Incorporated in project Pondora.The purpose of this master thesis is to compare the existing one way packaging system with a proposed return crate system not yet available in Sweden. The comparison is focused on packaging handling in the grocery store.The purpose is also to investigate how operating return crate systems in Norway and Finland function, identify, the problems they have encountered and survey economic and technical aspects. The knowledge we hereby have acquired was subjectively evaluated in the thesis.The Swedish survey has a focus on meat and bread. The surveys in Finland and Norway contain all the products utilizing the studied return crate systems.We have surveyed how the handling of transport packages for meat & provision and bread is done in the store.
Modern kontra traditionell styrning : - en studie av traditionellt tillverkande företag
Bakgrund: Traditionell styrning har kritiserats av en rad olika författare och en modern verksamhetsstyrning har utvecklats. Vi menar att traditionella tillverkande företag är intressanta ur den aspekten att traditionella ekonomistyrningsmodeller är uppbyggda kring dessa typer av företag. Frågan vi ställer oss är alltså huruvida modern verksamhetsstyrning är ändamålsenlig i traditionella tillverkande företag.Syfte och metod: Syftet med den här uppsatsen är, att beskriva och analysera tillämpningen av traditionella och modernare verksamhetsstyrningsmetoder i traditionella, tillverkande företag. Vår empiri är baserad på sex olika kvalitativa intervjuer på företagen Cloetta Fazer, Milko och Skånemejerier.Resultat: Traditionellt tillverkande företag möter inte samma förutsättningar som tidigare och behöver därför på många plan anpassa sin styrning..
Låsanordning med induktiv laddning för elcyklar
This thesis has been adjusted because some parts are classified, some sentences might have been changed. Electric bikes are a convenient mode of transport, a good choice when long distances or tough slopes can be an obstacle.The goal of the project was to create a prototype on a locking mechanism with an inductive charger for electric bikes.The idea behind the project was to develop a user-friendly locking mechanism, where the bikes would be charged inductively when they were locked. To implement the project facts about induction, battery charging and locking devices was needed to be acquired. Circuits for induction charging were created and a lock device was constructed. A microprocessor was used to control the entire system.A prototype was designed with a locking device and an inductive charger fixed in a bike rack.The entire project became very wide which resulted in that not all of the parts of the project could be completed.
Konstruktion och utveckling av en självbalanserande robot
This project is part of the course MF10YX, introductory mechatronics. The purpose of theproject is to integrate modules from the group members previous specializations into amechatronic system in the form of a self-balancing robot. The prototype ?Charlie? should be ableto race along a 10 - 30 m line. It should be able to start manually and autonomously detect andstop after the finishing line.
Predicerar Work Locus of Control och anställningslängd arbetstillfredsställelse?
Arbetstillfredsställelse är ett viktigt begrepp då människor tillbringar stor del av sitt liv på arbetsplatsen. Det är ett svårdefinierat och komplext begrepp, men kan ses som en individs syn på och värdering av sitt arbete och sin arbetsplats. Locke (1976) ser det som tillstånd och upplevelser och Kaufmann och Kaufmann (2005) som ett samspel mellan bland annat den anställdes tankar, förväntningar och själva arbetet. Det finns aspekter som kan kopplas till hur tillfreds en medarbetare är med sitt arbete och sin arbetsplats. I följande studie belyses förhållandet mellan Work Locus of Control och arbetstillfredsställelse samt anställningslängd och arbetstillfredsställelse.
Frekvensreglering i det nordiska kraftsystemet
Svenska Kraftnät is (together with the other transmission system operators of the Nordic power system) responsible for keeping balance between the generated and demanded power in the Nordic power system. Spontaneous load variations and system disturbances, however, lead to power imbalance followed by frequency variations. The frequency deviations can be limited to an acceptable level by the spinning reserve, mainly by hydro power control. But there are also other system properties which have a great influence on the frequency and system stability. The frequency and voltage dependence of the loads have a direct influence on the power balance.
Effekt på östralcykeln hos ston tillförda GnRH-analogen deslorelin (Ovuplant) :
This article starts with a review of the literature regarding the normal reproductive physiology of the mare, prolonged luteal phase and medical drugs used within reproduction of the horse, with emphasis on Ovuplant®. The purpose of this article was to measure the progesterone level in blood, of mares implanted with deslorelin acetate (Ovuplant®). The study was performed at the Department of Clinical Sciences, SLU, in Uppsala. There were seven mares included in the study. They were divided into two groups, one experimental group (four mares) and one control group (three mares).
Livscykelanalys: Pelletspanna från kvänum energi
This study will identify the environmental impact in terms of carbon dioxide for a boiler house on behalf of Kvänum energi. The boiler central consists of a main building, which in turn contains multiple components such as boilers, pipes, etc, the boiler central uses pellets fuel. It also includes a silo and an ash container. The total weight of the boiler is about 63 tons. Each boiler has an output of 600 kW; the central includes three boilers with room for a fourth if necessary.
Kommunalt klimatarbete : Jämförande studie mellan tre kommuner med avseende på drivkrafter och framgångsfaktorer
The crucial factor for successful municipal climate work is that there are driving forces. Most importantly is that the senior officials and politicians in the municipality are dedicated to the cause considering that they have the power to influence and make a change. Besides proactive and committed individuals, it is necessary that the work is organized and anchored by clear and concrete documents and control systems. It is also important that the work is continuously monitored and evaluated. To collaborate with other municipalities, authorities or participate in various networks is another factor contributing to the improved climate work in the form of exchange of information, knowledge and experience.A major driving force for municipalities to improve themselves is the distribution of state aid and grants.
Transport av häst på land :
The aim of this review is to evaluate the best way to transport the horse. When it comes to transporting horses there are a number of different types of trailers and trucks that you can choose from today. The most common type of trailer is designed for two horses and the horses are transported facing the direction of travel. Studies has been performed to determine if that is the most advantageous direction for the horse to travel in, in terms of balance and levels of stress. Stress is a widely discussed subject and the definition is not fully developed.
Mjukvaruplattform för riggstyrning
Today the competition in the automobile industry is getting all tougher. The technology behind cars becomes more advanced. To get ahead of competitors car companies has to look into new areas of innovation.One important area is vehicle safety. Bigger companies have come so far in vehicle safety that difference between cars more depends on the car type (size) than the technology behind it.There is one area where vehicle safety that still has great opportunities for improvement, which is in active safety. The term active safety states that the car has the ability to identify treats and automatically respond to the treats.