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21361 Uppsatser om Mobile Social Network System - Sida 15 av 1425
Militära ?mobil-appar? : Den militära nyttan med kommersiell teknik för militära ändamål
The transformation of the Swedish Armed Forces is bringing about major changes in many areas. Indirect fire is one capability affected by these changes. Financial savings, a shrinking organization and higher eligibility requirements mean that fewer soldiers will gain access to exclusive high-tech support resources such as the JAS 39 Gripen aircraft and the ARCHER artillery system. This thesis aims to examine whether access to indirect fire capability can be increased through the use of civilian products and communication networks. Technology development in the civilian mobile communications area is exponential and nations such as the USA, facing challenges similar to those of the Swedish Armed Forces, devote substantial resources to research and development.
"Mobilen - En extra kompis" : En kvalitativ studie av mobilanvändning bland högstadieelever
Denna uppsats syfte har varit att undersöka vilken roll mobilen spelar i en grupp ungdomars liv och då framförallt i skolan. Vi har intervjuat åtta elever på en högstadieskola samt utfört observationer för att få en så klar bild som möjligt av deras förhållande till mobilanvändning. Tidigare forskning har visat att mobilens roll har kommit att bli större och viktigare och den sociala interaktionen som tidigare i större utsträckning skett ansikte mot ansikte är nu mer benägen att ske genom mobilen. Mobilens inverkan på individ och samhället har både positiva och negativa effekter, vilket undersöks i uppsatsen. De frågeställningar som behandlas rör hur eleverna upplever dagens mobilanvändning, hur de använder sina mobiler och hur detta påverkar den sociala interaktionen.
Mer än ett spel : ? en kvalitativ studie om MMORPG-spelens påverkan på spelarnas liv
The phenomenona MMORPG-games ? a qualitative study on MMORPG-games effects on the players lifeThe aim of this study was to shed lights on what it is that makes some people play MMORPG-games, get a insight in how a gamers social network can look like and how the game can change the players everyday life. To acchieve this aim the authors carried out four individual interwievs with MMORPG-players. These interwieves was hermeneutic interpreted with the socialantropology networkstheory, roletheory, social identitytheory and the entirety was interpreted with the concept: ?the late modern society?.The conclusions that was found were that the games helps the players to handle their everyday life and has a condition for the players to produce relationships with other players.
Quality of Service i IP-nätverk
The original promise behind the Internet Protocol was to deliver data from a sender to the receiver using a best-effort approach. This means that the protocol makes no guarantees except that it will try to deliver the data to the destination. If some problem occurs the packet may be discarded by the network without any notice. No guarantees are made regarding the time it takes to deliver the data, the rate at which data will be delivered or if data is delivered in the same order it was sent. The best-effort approach is arguably the reason behind the success of the Internet Protocol and is what makes IP scalable to networks the size of the Internet.
LIN baserad kommunikationsmodul för GPS
The work that is the basis of this Master Thesis was performed on Scania´s group of cabdevelopment, and concerns the GPS-system in Scania´s trucks. Today, the GPS-systemconsists of an active antenna mounted on the roof of the truck. The antenna is connectedto the receiver with a coaxial cable.The purpose with this Master Thesis was to develop and evaluate a new GPS-system,where the information is distributed using a LIN-network. Today, each unit requiringGPS-information is equipped with its own antenna and receiver. This solution has beenthe most cost effective to this point.
Är det slumpen som avgör? : Vad styr socialarbetarens val av institution vid placering av ungdomar?
The purpose of this study was investigating the means which rule the social worker?s choice of institution placing youths and how they match the youth?s individual need compared with the type of home. The questions were: Which significance has the characteristics of the youth and their family for the placing? Which significance has the characteristics of the institution? Which significance has the social workers? way of working, investigation, theories, economy etc.? A qualitative way of interviewing has been used. Eight interviews were done; six with social welfare secretaries who place youths and two social workers who work with counselling and placement.
Socialt nätverk och självskattad hälsa; betydelsen av sociala relationer i kvinnors försök att kombinera föräldraskap och förvärvsarbete
Folkhälsovetenskapligt program.
Fjärrlån i Sverige - dagsläget och utvecklingsmöjligheter i framtiden
The aim of this thesis is to investigate the possibilities for creating a national interlibraryloan system in Sweden and to see how it could be integrated into an international network .The methods used are both qualitative and quantitative. We have sent inquiries to a numberof libraries and we have interviewed keypersons in the interlibrary loan field in Sweden.We have reached the conclusion that in spite of several impediments there is a lot that speaksfor a Swedish national interlibrary loan system in the near future. A national bibliographicdatabase is already evolving..
Tidssynkroniserade mätningar i vattenkraftstationer
Vattenfall and Svenska Kraftnät perform start-up tests, where hydropower generators are used to power up the electrical grid in case of a blackout. To monitor the electrical grid, Phasor Measurement Units (PMU) are used. Each PMU is individually equipped with a GPS-receiver to precisely timestamp the data relative to the official time UTC. During the test, it is also of interest to timestamp the measurement signals from individual hydropower generators to later compare with PMU-data, and thus study the power grids impact on the generator. The aim is to work out an appropriate method to make these measurements and to build a data acquisition system, capable of timestamp data relative to UTC, from a generator in one of Vattenfalls hydroelectric power stations. The problem is that the generator is located in an underground station which hampers the reception of GPS-signals and wiring should be avoided if possible. Time synchronization has been solved by using Vattenfalls network, which is synchronized by the network protocol NTP.
Mobil kommunikation och högre tillgänglighet vid längre elavbrott : Exemplet stormen Dagmar och 4G-kommunikation inom smarta elnät
To be able to secure a safe and reliable power supply is becoming increasingly important since society depends on services and functions that need continuous power supply. The delivery rate in Swedish power supply is 99.98 % which insists on a high availability. During the past decade several storms has passed Sweden which resulted in large amount of tree felling leading to extended power outages. During these storms many socially critical activities, such as electric utility company Fortum, experienced disruption in mobile communication which affected the crisis management. This paper has investigated Swedish mobile operators? crisis management at Hi3G, Tele2 and TeliaSonera with a case study of the storm Dagmar that hit Sweden during December in 2011.
Socialsekreterares kunskap om och anvädning av sociala medier i arbetet : En studie i en medelstor kommun i södra Sverige
AbstractThe aim off this study is to research social workers´ knowledge, use, risks and possibilities of social media in their work with clients. Because today the society is using social media networks in daily life and social media has become a tool in social work as well. How does social media and social work cooperate? And how does social media effect social workers? For example the website Facebook has grown huge and many people use it everyday. Where is the line between work and private life? To reach this knowledge in this study, qualitative interviews have been done with six social workers that work with children, youths and families.
Business- to businessrelationer i det föränderliga nätverkssamhället : - En kvalitativ studie om hur business- to businessföretag kommunicerar & marknadsför sig på Internet
We are living in network society, where information and communication together with the technical development stands in the centre. Characteristic for network society is quick changes, new meaning of time and space, convergence and new possibilities of communication. Network society contains new technical developments, several with thepurpose to improve the possibilities of communication between human beings, which in some ways creates new social demands and expectations. In this study, I focus on the Internet, which is an important channel for the information, communication and marketing in network society. As whole network society, the Internet is constantly developing.This study, implemented with qualitative interviews, has the purpose to give new, deep and interesting knowledge about business to business companies? communication and marketing on the Internet.
"Are You Gonna Go My Way?" - En empirisk studie av Västra Götalandsregionen lobbyverksamhet och nätverkan i EU
In this thesis we have examined Västra Götalandsregionens ways to lobby and network in the European Union. Our aim was to examine which kind of methods the region uses to lobby in a successful way in Brussels. We found that the region uses both formal and informal methods of lobbying to gain advantages in Brussels. We also wanted to locate various networks which the region is involved in to more easily have their interests satisfied. We found that they had a lot of different alliances and that it is necessary to be involved in different networks to have a chance to lobby the EU institutions.
Effektiv betong för småhusproduktion : Betong med högt luftinnehåll för platta på mark
This Masters thesis work describes a comparison between two different methods for estimation of the down channel (base station to mobile subscriber) in Wide-band Code Division Multiple Access (WCDMA). The first estimation method, Optimal Feed-forward Channel Estimation (OFCE), is a conventional method that bases the estimates on data that is known to both sender and receiver, so called pilots. The second method, Decision Directed Channel Estimation (DDCE), is an elaboration of OFCE. It also uses user data for estimation. Simulations show that DDCE, in comparison to OFCE, does not attain an improvement in signal-to-noise-ratio (SNR) for high bit error rates (BER).
Den mobila prefabriceringsfabriken : Ett nytt produktionskoncept
This is an investigation of a mobile prefabrication factory´s competitiveness and profitability which also will result in a suggestion for a design of the factory. The mobile prefabrication factory is an idea of a new concept for production which is meant to be used in the manufacture of slab. The main intention with this concept is that by using a fast established prefabrication factory to produce elements near the construction site, thus avoiding transport from the factory to the building site. This means not only an environmental and economic gain, but also that you can avoid risking damage the elements which often occur during transportation. The contractor is owner of the mobile prefabrication factory and can thus avoid long waiting times and cyclicality.