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3203 Uppsatser om Field measurements - Sida 57 av 214
Polisstudent i akademiska skriftspråksvärldar. : En studie av polisstudenters kritiska förhållningssätt i deras självständiga arbeten.
This master?s essay presents a study designed to investigate twelve police students?ability to handle academic writing conventions and to show critical-analyticalcompetence in their degree projects, which are written as part of the education atSweden?s three police academies. The education of police officers is not an academicone, and the students? main focus is therefore on writing texts in the field of policediscourse. At the same time, scientific principles and critical thinking are emphasized intheir syllabus, but the question of how students handle the encounter with academicdiscourse has so far not been investigated.
In-situ audiometri ? Vägen mot rätt förstärkning?
This study investigated whether in-situ audiometry, delivered via hearing aids, is a better option as a basis forprescribing hearing aid amplification, compared to conventional audiometry. By examining the real ear insertgain (REIG) in 29 ears (18 subjects), that had been fitted with a hearing aid programmed using both conventionalaudiometry and in-situ audiometry, the study looked at whether in-situ audiometry based prescription is closer tothe NAL NL1's fitting target than audiogram based prescription. The hearing aid Siemens Pure 7mi with speakerunit M was used on all participants. The results showed how in-situ audiometry based gain at certain frequenciesis more consistent with the target curve, especially at 1000, 1500, 2000 and 4000 Hz. It was not establishedwhether the findings of the study were statistically significant.
Spöa, sparka, slå och strypa: Kriminellas våldsattityder avslöjas med implicita mätningar
Attitudes towards violence were assessed using both implicit (The Single Category Implicit Association Test; Karpinski & Steinman, 2006) and explicit measurements (a Feeling Thermometer). A group of criminals showed more positive explicit and implicit attitudes towards violence than a group of non-criminals. In addition, The Aggression Questionnaire (Buss & Perry, 1992) revealed significant differences in aggression between the groups; criminals' mean scores were higher on all four subscales (physical aggression, verbal aggression, anger and hostility). Furthermore, significant correlations were found between all the measures, including the implicit and explicit attitude measures. The findings support the validity of the SC-IAT as an implicit measure of violent attitudes.
Införande av kompostering : en jämförellse mellan två bostadsområden
This thesis in social anthropology is based on a field study on the Internet exploring Tibetan identity. With a post-modern approach the thesis explores the possibility fora non-tibetan to create a Tibetan Internet identity and become a part of the Tibetan community that exist on the Internet..
Studie av Karlskogas fjärrvärmenät för att sänka returtemperaturen
A district heating plant has the advantage that it can take advantage of the waste heat from industries and use of cheap fuels to produce heat. But for the long term is competitive requires that energy is also saved in district heating plants. One way to save energy in a district heating system is to increasing cooling to the return temperature. This leads to less power needed to drive the distribution pumps, and that more energy could be extracted from the same amount of fuel by an improved flue gas condensation.In Karlskoga the return temperature into the district heating plant is high. They would therefore reduce the return temperature in order to extract more energy from the flue gases.
En osynlig risk : studie av människors inställning till radonrisk och åtgärder
Approximately 400 people in Sweden die each year by lung cancer caused by radon gas. Authorities have in recent years invested big resources and organized campaigns to encourage people to take action against high occurrence of radon in residences. With low frequency of applications for radon allowances as the main measure, a lot interprets on a very low commitment. The purpose of this thesis is to investigate the reasons for the low commitment among people. The study is based on a questionnaire survey sent to 444 house owners in Uppsala.
Ny teknik för kombisådd :
The use of combi-drilling during spring tillage has become very common in southern
Sweden in recent years. Combi-drilling leads to fewer passes on the field and better plant
nutrient utilisation. An example of a combi-drill is the Väderstad Rapid, which is very
widely used in spring tillage in southern Sweden. The Rapid has separate fertiliser and
seed coulters, which means that the draught requirement is relatively high. It thus
requires large, heavy tractors, which compact the soil and are comparatively expensive to
buy and run.
A few years ago the Finnish combi-drill Tume Nova Combi came onto the Swedish
market.
Djup icke vändande bearbetning i sockerbetsodling :
A field experiment was carried out in 2006 to investigate the effects of deep rotary cultivation on sugarbeet growth. The background to the experiment was a 2005 study showing potentially higher yield, higher cleanness and higher sugar content when primary tillage was carried out to 35 cm depth with a rotary cultivator.
On four field sites in Skåne (L:a Isie, Ädelholm, Stävie and Vragerup), five different
treatments were compared: mouldboard ploughing in the autumn to 20 cm; mouldboard
ploughing in the autumn to 20 cm + rotary cultivation in the spring to 35 cm; rotary
cultivation in the autumn to 35 cm; rotary cultivation in the spring to 35 cm; and mouldboard ploughing in the spring to 20 cm.
The rotary cultivator used in the treatments is manufactured by a Dutch company, Imants. The implement cultivates the soil with spade tines fitted on arms that are mounted on a horizontal rotating PTO-driven axle.
Beet plants were inspected and yield determined in the experiment, and three soil parameters were examined: penetration resistance, water infiltration and infiltration of blue dye. Root shape was also examined.
The site at Stävie was not harvested due to poor beet establishment. At the other sites, the highest yield was found when the soil was rotary-cultivated in the autumn.
Oljeavskiljare för biltvätt : Från idé till prototyp
This thesis describes the developmentof a device called "Oil Separator"which is used for washing vehicles andparticularly car washing. The devicedeveloped for Mr. Car Bilvård AB inUppsala, the company's work involvespassenger transport and courierservices. The company needs anexternal device that meets theenvironmental standards to wash theirown cars in the premises without theneed to modify or reconstruct on thepremises ground as the premises is ona leased contract.Work began with a preliminary study onthe literatures that describes boththe function and structure ofdesigning the device. A few interviewswith other car wash companies had beenimplemented, and some measurements.After collection of the necessaryinformation the specifications ofcustomer requirement was presented .With these requirements a fewconcepts was generated and weighedusing the Pugh matrix for conceptsselection for further development.The final concept was furtherdeveloped and a design has beenpresented.
Bulleremissioner från vertikalaxlade vindkraftverk
Wind power in Sweden is expanding in response to the government's decision that 49% of Sweden's power should originate from renewable energy sources by the year 2020. Problems with noise and sound emissions related to wind turbines are a constant argument against the wind power expansion and this paper means to examine if vertical axis wind turbines might be a viable alternative to the conventional horizontal design for noise sensitive areas. In order to determine factors like difference in frequency, noise propagation and noise emission level, measurements of both horizontal and vertical axis wind turbines have been completed and the data analyzed with MATLAB. It is shown that there is a difference in how the noise from the two types of turbines propagates due to avariation in the frequency spectra of the emitted sound. It is also shown that vertical axis wind turbines generate a lower sound emission with less intensity inthe lower frequencies..
Utvärdering av mikrofon- och högtalarelement för högtalartelefonsapplikation
The project deals with the evaluation and testing of speaker and microphone elements as well as microphone cavity.The first part of the report comprises a comprehensive theoretical part about drivers, microphone elements, and to some extent microphone cavity.The goal was to , on the behalf of the company Limes Audio AB, develop proposals on microphone element and cavity as well as drivers for a speakerphone application, based on specific factors. The main factors were performance, price and form factor.The aim was to create the best possible conditions for Limes Audio's software developers to implement the company's audio-enhancing software, mainly adaptive echo cancellation.The testing was carried out using Adobe Audition and MatLab. The test methods were developed in conjunction with Limes Audio and are described below.The project will result in suggestions for a speaker, a microphone and a cavity. The cavity were removed from the product because the results indicated that the cavity matter little for the end result.The report concludes with a discussion on how the measurements could have been enhanced to simplify the interpretation of the results and making the testing more efficient..
Meditation : Effekter & Upplevelser
In this essay, the phenomenon and the concept "meditation" are treated. Meditation is a mental training technique where one develops the ability to choose where to put attention and ability to focus. Techniques for meditation is used individually of people who wants to develop themselves as persons and in therapeutic aims of professional within the field of psychology in order to help people to find solutions of problems within themselves. The aim with this essay were to do a qualitative study in order to see how possible effects of meditation influences daily life of contributory practisian's. Issue has been as follows; which effects have one regularly conducting of meditation on people and their lives? Interviews with four experienced meditators were done in India and the material were analyzed afterwards with the aid of thematic analysis, furthermore in order to link the results with clinical research and established theories about meditation.
Användning av konst i samspel med landskapsarkitektur : med utgångspunkt i Gunilla Bandolins och Olafur Eliassons verk
The relationship between landscape - public - art and whatoccurs and happens in between is what this paper casts light on. The essay intends to investigate whether there is any boundary between landscape architecture and art. How does this border looks like? Can art in the context of landscape architechture lead to a closer cross-border collaboration between landscapearchitects,artists and the public, to create attractive and/or functional outdoor environments. The place where the meeting can take place is outdoors where the landscape architect works, in the public environment and around the public art.
Stubbtransporter och bränslekvalitet hos stubbved :
Stump wood is a hot alternative when the heating plants demands more and more forest fuel. The aim with the study has bean to calculate the costs in four different systems for transportations of stump wood, examine if there are any differences in fuel quality for the stump wood in the different systems, analyse if the fuel quality in stump wood is affected with the time it lays by the road side and how much space the stump wood demands on the road side. To calculate the costs for the different systems a system analysis was carried out, where some of the costs were collected through field studies on Holmen Skog stump experiment and other costs were collected from literature and contacts. Data for the fuel quality study was collected from Eons heat plant in Norrköping. Data for the study of how much space stump wood takes along a roadside was collected from field studies.
Hållbarhetscertifiering av stadsdelar : En jämförelse mellan existerande certifieringssystem
This bachelor thesis describes the process of developing a two wheeled robot with activebalancing. The robot is designed to go straight ahead until it reaches a finish line. Then it shallstop to stand still balancing. The workload in the group has been divided according to theprevious individual projects, which are attached. The design of the robot is inspired by theconcept of the Segway.