This report describes the design and implementation of a multi-master, packet based protocol for small and tiny microcontrollers where resources are limited. The protocol was named "Tiny Controller Network" or TCN for short. The protocol is meant mainly as a control bus for automation and sensor acquisition applications but due to its flexibility can also be used for other purposes as well. It borrows some of its functionality and design ideas from the well known CAN bus and Modbus but also has a number of major differences like the use of standard hardware and time synchronisation. One of the key aspects during the design was the use of very little system resources and common on-chip hardware peripherals like a UART.

When models are used to describe physical phenomenon during development or modification of a technical system, it is often possible to reduce both the time needed and the overall development cost. With the use of models it is also possible to investigate the potential of the selected solution, without the need for any expensive details and testrigs. In many cases it is also not possible to test all the aspects regarding the functionality that are desired from the system, without using the complete and final product.In this case a model based approach has been used to optimize the different parameters in the new snubbing mechanism for the Nose Landing Gear Retract Actuator on the JAS39 Gripen.During the simulations, upper and lower boundaries were calculated for the length of the spring and the diameter for the restrictor. The governing constraints were given by the requirements for the retraction time during cold conditions and that the amplitude of the alternating loads in the uplock mechanism were brought to an acceptable level.The most promising results from the simulations were then used in a limited number of trials in the hydraulic rig to verify that the configurations comply with the requirements.The final parameters for the snubbing mechanism were chosen to 35±1mm for the spring and 0.4-0.5 mm diameter for the restrictor..

In this paper the authors are focusing on people that work in psychiatric acute care. How do they identify the individual that is in most need of acute care? How do they judge in this kind of cases?    The foundation in this study is in the qualitative method. The material to this study has been collected by doing qualitative interviews with six people in different professions and positions in psychiatric acute care.   The material that we collected from these six qualitative interviews has been analysed with help from Sherif?s and Hovland?s (1961) Social judgement theory.

This paper evaluates the prospects for utilizing aquaculture effluents as a nutrient source in organic hydroponic, as is the case in aquaponics. The development of organic hydroponics is dependent on replacing synthetic fertilizers with organically derived nutrients, such as those found in aquaculture effluents. Also, in hydroponic cultivation the establishment of a plant pathogen suppressive micro flora is part of the plant protection strategy. Therefore, both nutritional and microbial qualities of aquaculture water and organic hydroponic nutri-ent solution were analyzed and compared. Results showed both aquaculture water and or-ganic hydroponic solution to be deficient in a number of essential elements, although or-ganic hydroponic solution was closer to recommendations.

This report studies the possibility of using some sort of radio sender and transmitter in order to position skis lost in powder snow. It is concluded that a RF-solution on the 433 MHz frequency should be the most efficient. Different forms of directional antennas are examined and studies show that in theory the best suited is the so called ?Yagi-Uda antenna?. A solution based on using a Receive Signal Strength Indicator value together with the above mentioned directional antenna is developed.

Drink! The Marketing History of The Coca-Cola Company: A Modernization Perspective examines the development of The Coca-Cola Company?s marketing history, from the founding of the company in 1886 until today. The Coca-Cola Company has been superior on the market for over a century. It has also developed along with the urbanisation of its society, which is interesting in a modernization perspective. The essay investigates the marketing strategies of the company, with focus on three themes: gender, sponsorship and interactive culture phenomenon.

Silage is today a common feed for different animals. A general way of storing silage is in bunker silos covered with polyethylene film. The covering and uncovering is labour intensive and it is often difficult to get the silo properly sealed. Because of these reasons many American farmers leave their silos uncovered and accept the losses accompanied. One purpose of this study was therefore to examine if it sometimes can be justified to leave bunker silos uncovered.

Playfulness and curiosity in the usage of new technology and digital filmmaking has always been of great importance within these fields. There are many different media technologies that can form what the user wants to communicate in a certain context. One of these forms of expression that has increased in popularity from the early 20th century until today is the animation technique, Stop motion. Amateur filmmakers have also found an interest in using the technique. Our purpose has been to study the different aspects as to why young-adult amateur filmmakers have chosen stop motion as the way to express themselves.

This bachelor degree project was carried out at Saab AB Service and Repair, Arboga, Sweden. The objective was to design, construct and implement a new stable and reliable method of measuring the continuous vertical displacement (height) of the military search radar PS861 mounted on a hydraulic powered elevator. The end product needs to be durable enough to be fully operational in the harsh environment of an outdoor elevator shaft and yet as accurate and precise as possible since one of its purposes is to calibrate control equipment. Previously used technique has proven not to meet any of the above mentioned properties.A prototype using a high resolution quadrature output rotary encoder has been developed, allowing a completely digital interface. This new method has been evaluated in laboratory environment where tests have been conducted regarding both reliability and validity.

The industry of management training programs is increasing rapidly. Every year numerous organizations sponsor expensive management training programs for their managers, hoping that this will pay off and make the organizations more profitable. The companies that offer these management training programs could be seen as important conveyers of conceptions of leadership. Thus, the purpose of this thesis is to identify similarities between a number of management training programs and see how they are related to different leadership theories , and based on this try to recognize the conceptions of leadership that are conveyed. The study is of qualitative nature and is based on interviews with representatives from five management training companies in Sweden along with a text analysis of written material presented by the companies.

This thesis takes its starting point in the 27 Chapter 1, section 1 of the Swedish code of judicial procedure, where the following is found:?objects reasonably presumed important to a criminal investigation or taken from a person through a criminal act or subject to criminal forfeiture may be seized?In this thesis we have investigated what kinds of problems occur when the seized object is part of an investigation of IT-related criminality. We have used methodological investigations of Swedish laws, legal usage, and the preliminary work with laws. Further have three interviews been made with different actors affected by or involved in seize of objects. These persons were a police officer, a public prosecutor, and a person whose object has been seized.The result we present is that there exist three kinds of problems related to objects that are seized within the demarcation of this study.

AbstractThis report is made in cooperation with the municipality of Vasteras and technical committeestaff. The report addresses several topics that affect fuel stations in Vasteras. The reportcontains two parts, first is a inventory that review all stations in the area to be addressed. Theinventory is made with consideration to various things that geographic situation, whatcompanies are represented and what level of service stations have. And the second part of thereport, is done with the analysis of how it looks in daily situations review.

Intranet is today a common technical groupware to communicate in many organisations. People can interact through the Intranet and communicate within the organization and get relevant information according to their workplace. It can be difficult to get everybody to use the Intranet as an information- and communication tool. This causes problems when people want to reach out with information. With these thoughts we entered our work at Luftfartsverket at Arlanda airport.

This study has examined how social media has changed food companies way of holding contests. The study examines how food companies use contests with the help of social media and how they used to do the contests before the use of social media. We have also researched the users behaviours and opinions of companies contests on and outside of social media.In this study we have interviewed four people responsible for contests on the social media department on their respective food company. We also performed a survey that was published on Facebook and followed it up with interviews from two of the participants.This study has showed that contests on social media, as a technical aspect, have given new possibilities for the design of the contests. But there are still some unexplored areas around contests on Facebook and the companies do not know exactly what the users are demanding.

The implementation problem refers to the situation when political decisions are not implemented as intended by the decision makers. In this thesis I examine how one part of the new school reform GY11 has been implemented in Social Science in high school in Sweden. The part that interests me is entrepreneurial learning. Using implementation theory, and the actor properties understand, can and will, as described by Lennart Lundquist, I have interviewed five high school Social Science teachers in Malmö and Lund. The result was that they all understood the concept of entrepreneurial learning.