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4112 Uppsatser om Sound level monitoring - Sida 10 av 275

Den framtida havsnivåhöjningens inverkanpå bebyggelse och infrastruktur : En fallstudie av Värmdö kommun

The sea-level is rising due to climate change. This report inquires into the possibleconsequences of sea-level rise in Värmdö and its archipelago with particular focus on roadsand buildings. Four scenarios with a sea-level rise of 0.5, 1.5, 2.5 meter and a worst casescenario of 3.9 meter are analyzed using a geographic information system (GIS) calledarcMap. The report also examines how Värmdö is taking into account future sea-level rise intheir planning today. The report´s findings show that uplift and sea-level rise cancel eachother out in the scenario with a sea-level rise of 0.5 meter, but that a number of more or lessimportant roads and buildings will be affected by a rise of 1.5 meters.

Mating behaviour and hierarchy among male warthogs (Phacochoerus africanus) in Kenya

Warthogs live under natural conditions in matriarchal groups, bachelor groups and yearling groups. Just like all pig species do warthogs have a complex behaviour repertoire. The semi-wild warthog population at Kichwa Tembo Lodge, outside Masai Mara National Reserve, lives in a fenced area with access to food all over the year and is protected from predators. The aim of this study was to observe the male warthogs? mating behaviour and their hierarchy during the mating season.

Ordermusiken

This thesis strives to demonstrate my increasingly phenomenological approach to musical composition in relation to the extensive body of musical works connected in different ways to the poetry collection ORDER by the Swedish author and play-wright Lars Norén. The hand, the touch, the voice, the space (environment) and its philosophical implications are scrutinised from a poetic perspective (my poetics). The question of language (the word), the sign (text), sound/noise/music and its immanent bodily qualities are focused and questioned in my own work as well as in primarily two case studies of the music of Pierluigi Billone (1960-) and Morton Feldman (1926-1987).The text reflects the emancipatory process my music has undergone the last 4- 5 years: moving away from language and text (representation) to body and sound, although preserving and nurturing the extended idea of the sign (as signification of sound and body) as a possible embodied vehicle in my composing and artistic thinking.The reader is invited through the extensive use of sketches and work methods to witness and follow this process as a manifestation of the ?doing? rather than the presentation or construction of an analysis in an academic sense.The thesis offers no solution and it fails to encapsulate all of the so-called ORDER-MUSIC (the music that is connected with Norén's collection of poetry) Instead it proposes a possible way of ?opening? the process to a basically phenomenological methodology inside the musical field of score based chamber music..

Evaluation of Ectopar for the control of the poultry red mite Dermanyssus gallinae

The poultry red mite, Dermanyssus gallinae, is a common problem in poultry facilities, causing great discomfort for the hens and effecting the production economically. Few efficient acaricides are available and there is a need for new control methods since resistance has become a problem in some cases. The aim of this study was to evaluate the efficiency of the new liquid silica control agent Ectopar, on the poultry red mite. An initial in vitro test of Ectopar and its two components individually was performed, where live mites were sealed in together with filter paper impregnated with one of the three solutions prepared. The survival of the mites was thereafter recorded repeatedly during a period of 120 hours and compared to a control. For the field study, two poultry farms with different housing systems were used, one with furnished cages (farm 1) and one with a single tier floor system (farm 2).

VÄGTRAFIKBULLRETS INVERKAN PÅ UTFORMNINGEN AV BOSTADSBYGGNADER I STADSMILJÖ

The public interest in central living in today?s cities has led to an increasing effect of traffic noise pollution, and today 20% of the inhabitants in Sweden suffer from noise a level that exceeds the limits. At the same time the traffic keeps increasing, and recent researches shows that traffic noise pollution and several of today?s most common health issues are connected, for example, reduction of performance, sleeping issues and cardiovascular diseases. For this cause rules, guidelines and environmental goals has been developed, as well as software?s which calculates the levels of pollution, all this to investigate and improve the environment.

En studie i realtidsgenererat binauralt ljud

Många av dagens dator och TV-spelsljud är anpassade för högtalaruppspelning, i många fall även flerkanalssystem som 5.1 surround och liknande. Få spel är anpassade för uppspelning genom hörlurar och för att få en bra ljudlokalisering i hörlurar behövs ofta någon form av surroundhörlurar. Vi tror att man kan skapa trovärdig (Riktnings)återgivning av ljud i hörlurar genom bara två ljudkanaler genom så kallat binauralt ljud. Vi kommer i detta arbete att beskriva de faktorer som spelar roll i vår stereohörsel, varför de fungerar samt vilka svagheter som finns i detta system. Vi kommer att skapa ett system för att behandla realtidsgenererat binauralt ljud för spel och beskriva de verktyg vi valt och den generella arbetsprocessen.

Optimal högtalarplacering i en lastbilshytt

This Degree Project was about finding the best loudspeaker placement in a heavyweight truck and also the best suited loudspeaker for this task. The project took place in Södertälje, Sweden, on behalf of Scania CV AB. The goal was to create a new listening environment in a truck cabinet.The results were accomplished by the performance of a few different tasks. First a benchmark was made on Scanias top competitors. Second a listening test was made to get an apprehension of what people find lacking in the sound reproduction of the sound system.

Övervakning av ston i sen dräktighet genom transrektal ultraljudsundersökning av placentan :

Abortion during late gestation is often caused by placental dysfunction such as placentitis. To prevent this from happening the placenta can be monitored pre partum so treatment can be started at an early stage. Methods for monitoring the placenta include hormonal monitoring, presence of clinical signs of placental dysfunction and ultrasonographic evaluation of the fetus and the placenta. Transrectal ultrasonography provides a very good image of the caudal portion of the allantochorion where an ascending placentitis normally establishes. An increased combined thickness of the uterus and the placenta, CTUP, has been associated with placental failure. This study included ten Swedish standardbred trotter mares in late gestation. They were monitored by transrectal ultrasonography of the placenta two times with approximately a month in between. CTUP was measured on each examination.

C2-monitor : en rapport om utvecklingen av ett mobilt gränssnitt

This report presents the development process of a mobile interface for the C2-monitor. A monitoring tool used to support the operations for the broadcasting services of Ericsson Broadcasting and Media Services (EBMS). With the support of the C2-monitor, operators can monitor hundreds of channels and services produced from EBMS. To enhance a more flexible working environment, the C2-monitor needs to be developed further to support mobile devices with a customized design to take advantage of mobile phones features and functionality. Established and well-recognized design methods and principles have been applied in the development process and user testing have been made iteratively throughout the project.

Aktiv bullerdämpning i ventilationssystem

Active headsets have been on the market for years and now it is time for something else to enter the stage. The technology of active noise reduction can for exmple also be used in ventilation systems for reducing ventilation noise. An active control system principally consists of four important components, namely the downstream error microphone, the upstream detection or reference microphone, the digital signal processor (DSP) and a loudspeaker. The upstream reference microphone listen to the primary ventilation noise and sends it to the DSP which makes a phase shift to the signal and sends it to the loudspeaker. The loudspeaker sends out the opposite waveform of the incoming one and reduce the primary ventilation noise.

En studie i realtidsgenererat binauralt ljud

Många av dagens dator och TV-spelsljud är anpassade för högtalaruppspelning, i många fall även flerkanalssystem som 5.1 surround och liknande. Få spel är anpassade för uppspelning genom hörlurar och för att få en bra ljudlokalisering i hörlurar behövs ofta någon form av surroundhörlurar. Vi tror att man kan skapa trovärdig (Riktnings)återgivning av ljud i hörlurar genom bara två ljudkanaler genom så kallat binauralt ljud. Vi kommer i detta arbete att beskriva de faktorer som spelar roll i vår stereohörsel, varför de fungerar samt vilka svagheter som finns i detta system. Vi kommer att skapa ett system för att behandla realtidsgenererat binauralt ljud för spel och beskriva de verktyg vi valt och den generella arbetsprocessen.

Relevansen av religionskunskap i Sverige ur ett individ- och samhällsperspektiv : jag menar om jag skall steka oxfilé så gör jag det inte bättre om jag vet vem Moses var

The aim for this essay is to investigate the importance of studying religion in an upper secondary school in Närke county, this is done by distribution of a questionnaire. The importance is studied both on the individual level and on the societal level. The result shows that although the students do not have a big interest in religious studies still the subject has an importance on both an individual and a society level..

Går det att mäta blodtryck med fotopletysmografi och bioakustisk sensor i kombination?

The aim of the work was to investigate the possibility to combine information from PPG and bio-acoustic technology to extract information that is related to the blood pressure. The measurements have been carried out with several different configurations. First the relation between arterial sounds and the PPG-signal was studied. After those measurements with both PPG and the bio- acoustic technique was concluded on people in different positions and after riding a bike. The goal was to vary the blood pressure.

Planering och Målstyrning : En nulägesanalys av ett markdistrikt inom Skanska

This report is a result of a diplomawork in construction engineering.The goal of this thesis is to highlighthow the work with planning andperformance management is done in theprojects at the Swedish buildingcontractor Skanska Väg & anläggning,region Stockholm/Mälardalen, districtMark Stockholm North, compared toSkanska?s policies.The comparison was made with focus onfive tools for productivity. The toolsare as follow: broken-down schedule,work sets, visual control, performancemanagement/progress monitoring and bestpractice.The study showed that the usage of thedifferent tools varied both within andbetween the different projects.Practically none of the projects whereusing the tools progress monitoring andbest practice, mostly due to fewoperations being applicable. The worksets are now mostly documented, but theyare rarely followed up. Performancemanagement is somewhat inconsequentialfor the moment, but during 2011 targetsheets will be introduced, withtemplates for setting up targets.Scheduling is one of the most importantworks regarding planning.

RTLS - real time location systems : an inventory study for agriculture applications and requirements

The trend towards increasingly large farming units raises questions regarding how to better monitor production. Larger units make the impact from possible errors more severe, which increases the pressure on management supervision. To cope with management issues, prevent errors and handle increased demands on traceability and documentation, the Real Time Location Systems (RTLS) concept is making its way into various parts of agriculture. In sectors outside agriculture, RTLS are already being used successfully to track and locate items through nodes at different levels of accuracy, such as room level or the relative or absolute position. Empirical data can be received in real time from the nodes.

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