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454 Uppsatser om Mass-customization - Sida 21 av 31
Implementation of a Data Handling System for a Scientific Magnetometer on a CubeSat
Since their invention in 1999, CubeSats have become a widespread standard for small picosatellite missions. CubeSats allow for quick development of satellite payloads and launch in space without the high costs of a normal satellite. Emphasis during the CubeSat design process is placed on use of commercialoff- the-shelf (COTS) components and reuse of previously-designed units.This report describes the interfacing of a scientific magnetometer, the Small Magnetometer in Low-Mass Experiment (SMILE) to such a CubeSat mission, the Space Weather using Ion spectrometers and Magnetometers (SWIM). Design of a complete platform for use in multiple such missions is presented here.Modularity is one of the key aspects followed in the course of the work. A new board containing the analog pick-up and compensation circuitry for SMILE has been designed to fit inside a CubeSat frame.
Buntning av grot med lastbilsmonterad utrustning :
During the transportation of logging residues (LR) the material´s low density is a problem that results in low use of pay-load capacity. Comminution or compression of LR are possible methods to increase pay-loads. In the present thesis studied a bundling machine which was mounted on a truck chassis, and the subsequent transport and crushing. The truck bundler created bundles that were larger and longer than other bundling equipment on the market. The objectives were to determine the total time consumption and its allocation over work element and machinery, to measure dry matter (DM) content of green and brown LR-bundles.
Distriktssköterskans erfarenheter av stöd till föräldrar med överviktiga förskolebarn
Övervikt och fetma hos förskolebarn har ökat i alarmerande takt de senaste 30 åren. Det finns många faktorer som bidrar till att utveckla övervikt och fetma som exempelvis mindre fysisk aktivitet, alltför energirik kost, stress, låg social status och föräldrarnas BMI (Body Mass Index). Övervikt och fetma kan orsaka negativa konsekvenser som blir både kort- och långsiktiga hos överviktiga barn och i framtiden som vuxna. Studier har visat att tidiga insatser är nödvändiga för att förhindra allvarliga följdsjukdomar såsom t.ex. diabetes och hjärta/kärlsjukdomar.
Identifiering av lakbara potentiellt farliga ämnen i gummiasfalt
The main purpose of the project was to identify potential environmentally harmful substances which can be leached from rubber asphalt. A method for analysing asphalt was developed and three rubber asphalt materials were analysed after being cryogrinded. One of the materials was also tested in a road machine made for testing of asphalt paving. The particles created in the machine were analysed in the same manner as the cryogrinded asphalt materials.The asphalt materials were leached by water during 24 hours. The leachates were extracted with dichloromethane, dried with sodium sulphate and concentrated to a small volume.
Vibrationsdämpning av värmepump
Thermia Värme AB is one of the market leading manufactures of heat pumps. In order tomaintain this position, the company wants to improve the vibration characteristics of theirproducts. The aim of this thesis is to develop product design changes that lead to a reductionof vibrations in the heat pump Thermia Diplomat 8.The main cause for vibrations in the system is flow pulsation and mechanical forces inducedby the scroll compressor. Vibration is transmitted through the compressor piping and receivedby the heat exchangers, from where it is further transmitted to the connection points for theradiator and heat source circuits.A number of design changes in order to improve the vibration characteristics have beenevaluated through calculations and practical experiments. The changes have included thecompressor and heat exchanger mountings, the compressor suction and discharge line pipingand also pulsation dampening.The results of the experiments show that the vibration levels in the connections for the heatingand brine circuits can be decreased strikingly through changes in suction and discharge linepiping.
Butorfanol till get : farmakokinetik efter subkutan injektion
Today there are no analgesic drugs approved to be used in goats. Drugs approved for use in other species are consequently being used without knowing the pharmacokinetics of these drugs in goats. The purpose of this study was to investigate the pharmacokinetics of the opioid butorphanol when given subcutaneously in goats. Subcutaneous administration might extend the half-life compared to intravenous or intramuscular administration. Eight clinically healthy, non-pregnant 6 months old female goats were used.
Soil carbon in small-holder plantain farms, Uganda : a comparison between agroforestry and non-agroforestry
Smallholder farmers in Uganda suffer from declining productivity. With a rapidly increasing population, marginal land is taken into production and the current land
management leads to loss in soil fertility and escalation in soil erosion. There are studies indicating that the use of agroforestry increases soil organic carbon (SOC)
compared to systems without trees. Soils which are high in carbon have many advantages, for example better water holding capacity, which can reduce stress on
crops during drought.
The aim of this study was to determine the effect agroforestry has on SOC concentration in small-holder farming systems in Uganda. The intended system to
study was farms practicing agroforestry methods or not in intercropped plantain (cooking banana) fields.
Tillväxt i medelstora företag: En problem- och åtgärdsanalys för tillväxt hos Sveriges "bortglömda" företag
Many sources point to the same conclusion; throughout the history the research sphere, mass media, governmental industry policies and public life in common have not paid the same attention to medium-sized companies as to small, new or large companies in Sweden. Yet, there are some researchers claiming the need for the medium-sized companies to grow, becoming tomorrow?s Swedish new large companies. Hence, the need for understanding the specific growth conditions of the medium-sized companies are definitely clear. This study aims firstly to identify whether there are specific requirements and obstacles for growth in connection to being a medium-sized company.
Mek Stans 07
Mek Stans 07 is a machine developed for Tetra Pak in Lund as a 10p candidate theses project at Halmstad University. The commission behind the project involved development of a machine that punches holes in packages for the inspection division at Tetra Pak. The task for the machine was to facilitate the process of making openings for testing in the company?s other equipment.
Researches on different methods of cutting, types of automatization and possible designs were made. To implement the project a design and construction from the base where chosen.
Om den ofeministiska jämställdheten och den ojämställda feminismen: en diskursteoretisk analys av en feminismskritisk jämställdhetsrörelse verksam på nätet
This essay analyses text written by a gender equality movement critical of feminism. Themovement is active on the Internet and through this essay I would like to show the tensions in contemporary political debates on gender equality and feminism. 350 blogposts have been deconstructed through discourse theoretical method. In the analyses I have shown the discursive struggle that is going on within the movement in giving meaning to concepts as knowledge, society, gender, politics, feminism and gender equality. The movement is using the technical potential in blogs and common Internet forums tocreate a common political we.
Sambandet mellan undersökningsinstrument för fysisk aktivitet som används för barn med övervikt
SammanfattningAtt undersöka en befolknings fysiska aktivitet ger beskrivande data utavdagsläget samt att resultatet fungerar som mätinstrument för hur en framtidaintervention ska utformas. Syftet med denna studie var att se om någotsamband förelåg mellan tre olika undersökningsinstrument för fysiskaktivitet, som används för med barn med övervikt. Metod: Deltagarnamättes, vägdes, skattade sin fysiska aktivitetsnivå (frågeformulär), testade sinfysiska prestationsförmåga (sex minuters gångtest) och deras fysiska aktivitetmättes (accelerometer). Resultat: Åtta flickor, 7-13 år, med ett Body MassIndex (BMI) på 26 ± 3,7 kg/m2deltog. Majoriteten skattade sig vara fysisktaktiva 30-60 min/dag under vardag och helg, men som grupp var skattningensignifikant lägre på helgen.
Stråldoser vid olika skoliosundersökningar
Bakgrund: Skolios är en ryggradskrökning och det är viktigt att hitta orsaken då behandlingen är beroende av skoliosens utseende. Röntgenundersökningar bör endast användas när behandling av skoliosen övervägs då onödiga stråldoser bör undvikas. Ju mer strålning en patient får på sig desto större risk för cellskada. Röntgensjuksköterskor bör alltid arbeta för att försöka minimera stråldosen vid röntgenundersökningar.Syfte: Syftet med aktuell studie var att jämföra olika skoliosundersökningar på två röntgenavdelningar för att fastställa om någon skillnad i stråldos uppstod mellan dem.Frågeställning: Är det någon stråldosskillnad mellan en konventionell skoliosundersökning och en skoliosundersökning med genomlysningsutrustning?Metod: I ett konventionellt undersökningsrum och i ett genomlysningsrum tillfrågades 30 patienter om längd samt vikt och undersökningens Dos Area Produkt (DAP)-värde dokumenterades.
Latitudinal patterns in body size of Roesel?s bush cricketMetrioptera roeselii within and outside the continuous area of its distribution
Over time, species colonize new areas naturally or through humans. The colonizers areoften few and founded populations represent only a fraction of the genetic diversityexisting in the original population. If the established population becomes isolated afterthe colonization event genetic diversity will remain low and if the population, in addition,remains small in size for an extended period this will lead to increased inbreeding andpossibly inbreeding depression. Metrioptera roeselii is a common species with awidespread distribution in continental Europe. During the last century, it has expanded tothe Scandinavian Peninsula which is separated from continental Europe by the Baltic Sea.My aim was to test the hypothesis that individuals in isolated populations in Scandinaviaincluding Denmark and the Baltic Sea islands are smaller than individuals in thecontinuous part of its distribution due to low genetic diversity and lacking incoming geneflow.
Gestaltningen av en massmördare : En kvantitativ innehållsanalys om gestaltningen av Anders Behring Breivik i nordisk media.
The purpose of this study is to overlook Nordic medias news coverage and framing of Norwegian mass murderer Anders Behring Breivik. The study is based on printed editions of Norwegian newspaper Aftenposten, Swedish newspaper Dagens Nyheter and the Finnish newspaper Hufvudstadsbladet set on nine selected dates related to the issue between July 23th 2011 to August 25th 2012. The study will display how Breivik was framed by each of the Nordic newspapers and even the total amount of news coverage the issue has been given. The media framing part of the study will mainly focus on the media framing of Breiviks personality and political ideology. The study will also investigate each newspapers handling of Breiviks manifesto, which he published only hours before killing 77 people on July 22th 2011. The study is a quantitative content analysis, containing a total number of 245 articles.
Enkel intravenös administrering av trimetoprim-sulfadiazin hos neonatala föl : farmakokinetik samt känslighet hos gramnegativa bakterier från föl med septikemi
The retrospective part of this study evaluates the susceptibility patterns of bacteria isolated from blood in critically ill foals in Sweden. The most commonly obtained bacteria were Actinobacillus spp. (38 %) and Escherichia coli (27 %). Trimethoprim-sulphonamide (TMS) had good efficacy against most gram negative bacteria with the exception of Klebsiella spp. Among 17 Escherichia coli isolates 94 % were susceptible to trimethoprim-sulphonamide whereas all 24 isolates of Actinobacillus spp.