Sök:

Sökresultat:

8464 Uppsatser om Shock Pulse Method - Sida 1 av 565

Definition av stötdämpares fyllnadsgrad

Shock absorber units play a key role in establishing the driving dynamics and performance of automobiles. Öhlins Racing has manufactured high-tech automotive shock absorbers for over 30 years. Öhlins Racing?s advanced technology has contributed to over 200 world championships in automobile racing. Öhlin?s manufacturing process has long utilized automated fluid filling equipment during the final shock absorber unit assembly stage. The filling process consists of vacuum pumping the shock absorber unit and subsequent transfer of fluid. Vacuum pumping is necessary to remove residual air from the shock absorber unit prior to initiating the liquid filling stage. The presence of undesirable gases drastically compromises the performance of a shock absorber. The filling degree, defined as the final ratio of air to oil, is determined by the specific filling protocol as well as the specific equipment utilized.The current investigation aims to develop a viable technique to accurately determine residual air content in shock absorber units. If the filling degree can be appropriately quantified for a specific manufacturing process, then the air/oil ratio may be quantitatively related to shock absorber performance. The utilized measurement method must be completely integrated into the manufacturing process to guarantee shock absorber performance specifications according to the manufacturer?s standards. By utilizing the measurement method developed in this work, the manufacturing process, manufacturing equipment and product specifications can all be tailored to provide improved filling conditions.The developed measurement method provides accurate quantification of the filling degree under a wide range of processing conditions. The method establishes the relative quantity of air in the shock absorber unit by performing in-situ compressibility tests. The fill ratio can be controlled and varied by manipulating the vacuum pressure exerted during the filling process. Performance tests, however, indicate no correlation between filling degree and unit performance..

Plantar fasciit ? evidens för stötvågsbehandling för smärtlindring och förbättrad funktion, en systematisk litteraturstudie?

AimThe aim of the present study was to study possible evidence for shock wave therapy on pain and function in patients with plantar fasciitis.Questions1. Does shock wave therapy reduce pain in patients with plantar fasciitis?2. Does shock wave therapy improve function in patients with plantar fasciitis?MethodA systematic review of the literature was performed in the databases PubMed, EMBASE, Cochrane and Cinahl.

Shock & Awe, en modernare typ av manöverkrigföring? : En jämförande studie av två teorier

Det pågår en ständig utveckling av normativa teorier om krig för att kunna anpassa sig till nutida konflikter. Nya teorier utvecklas i takt med ny teknologi och nya motståndare. De teorier som utvecklats på senare tid har föranlett till denna jämförelse mellan manöverkrigföring och Shock and Awe, Achieving Rapid Dominance.Uppsatsen syftar till att studera huruvida Shock and Awe, Achieving Rapid Dominance är en egen teori och i vilken utsträckning den grundar sig i manöverkrigföring.Genom en kvalitativ metod där textanalyser har legat till fokus, skapas idealtyper av manöverkrigföringens grundläggande element. Dessa verkar sedan som indikatorer för att urskilja likheter och skillnader med Shock and Awe. Resultatet visar på ett flertal likheter och skillnader som leder till slutsatsen att Shock and Awe inte kan definieras som en originell teori, då likheterna med manöverkrigföringen är allt för stora..

MPD-vågformer för helikopterradar

A helicopter based system equipped with a millimetre-wave fire control radar is studied for improvement of the detection probability for moving ground targets. The system is a pulse doppler radar that sends out the electromagnetic wave in repetitive pulses. The frequency in which radar sends this pulse is called Pulse Repetition Frequency (PRF). The velocity of the moving targets is measured by spectral analysis of the pulses received. With this sort of system some targets will not be possible to detect.

Interaktivt Säljstöd-Flash presentation av Stöt Puls Metoden

Denna rapport är en beskrivning av ett examensarbete utfört vid SPM Instrument AB i Strängnäs. SPM Instrument utvecklar och tillverkar produkter för konditionsmätning av maskiner. Målet var att skapa en cd-presentation i redigeringsprogrammet Macromedia Flash 5.0, som på ett enkelt sätt med rörliga bilder förklarar en konditionsmätningsmetod som kallas för Stöt Puls Metoden.Uppgiften löstes genom att först inhämta information om Stöt Puls Metoden, sedan utformades Flash-filmen och slutligen testades och utvecklades filmen tills dess att jag och SPM Instrument var nöjda.

Simulering av hydrauliska dämpare i borrslagverk

This master thesis consists of the creation of shock absorber models for percussive rock drills. A model of the rock was also developed. These models were connected to existing models of the rock drill to create a complete simulation of the rock drilling process.When the models had been created the rock model was evaluated by comparison with measured values from lab tests. The verified rock model was then used to evaluate the shock absorber models.Four new shock absorber concepts have been developed. Three of these have been modelled, while the fourth have only been sketched and described.The evaluation of the models showed the following:? Simulations of the single shock absorber don?t correlate to reality very well.

Obalans mellan rot och krona skapar omplanteringschock i Prunus avium :

In this investigation has an attempt to find out whether so called transplanting shock depends on the moving and transplanting of trees, to other conditions, or if it is due to the imbalance between the root to shoot ratio. Seventy trees of Prunus avium have been part of the investigation and these trees have been divided into four different groups depending on methods of production, untouched on the field, trees still on the field but with root pruning, trees moved and planted into Root-Control-Bag, trees moved and planted into Spring-rings. To be able to answer the question, measurements of the length of the terminal shoots and the lateral shoots and the dimension of the stem growth have been done and also has a visual judgment of the trees vitality been performed. The result shows that it is not only the move of the trees that gives them transplanting shock, but rather the loss of roots which gives an imbalance between the root and crown..

Screening av dysfagi på äldreboenden i Linköpings kommun

Changes in swallowing function are common in elderly and chronically ill individuals. Therefore it is important to be aware of these changes and their prevalence. The aim of this study was to assess the prevalence of dysphagia in nursing homes in the municipality of Linköping, and to correlate dysphagia with variables that can be a cause or a consequence of dysphagia. These variables were gender, age, MMT-result, dentition, weight loss, medical diagnose or number of medications. The intention was also to examine the additional information regarding dysphagia supplied by pulse oximetry.Sixty nursing home residents aged 74-101 years were chosen to participate in the study.

  Yrkeskulturen  i hotell och restaurangbranschen.En fara för lärlingar och elever? :  

 English abstract  The culture of hotel and restaurant work.Dangerous for apprentices and students?The study is based on a survey targeting 50 teachers at chef schools with good geographic distribution of 9 schools. Teachers answer questions on bullying and sexual harassment in the hotel and restaurant sector, and students practice shock in the meeting with the industry. Students face a hard and tough environment where it is expected that it will suffer a great deal of harassment and degrading treatment as part of a tradition. There seems to be a general but erroneous belief that the professional climate has improved.

Irakkriget 2003 : En studie om tillämpningen av Rapid Dominance

Uppsatsen avhandlar Rapid Dominance genom Shock and Awe. En teori utvecklad av författarna Ullman och Wade som publicerades i ett paper 1996. Papret vid namn Shock and Awe, Achieving Rapid Dominance var ämnat att utveckla ett nytt sätt för den amerikanska militären att planera och genomföra operationer på. Efter det kalla krigets slut skulle oundvikliga förändringar av den amerikanska militärens resurser ske. För att hantera denna förändring ville författarna utveckla ett koncept som skulle kunna fungera som en doktrin i framtiden.

Implementering av Constant Fraction Detection vid avståndsmätning

This thesis is performed at Saab Bofors Dynamics in Karlskoga and investigates a technique for ranging with laser pulses. The investigated technique is called Constant Fraction Detection (CFD). Described briefly, the received laser pulse is split into two equal parts, where one part is delayed half the pulse width and inverted. This signal is added to the original pulse. The resulting curve has the shape of a laying S and the detection of the zero level is used to stop the time measurement.

Utveckling av en HBV/PULS-model med sammanfogade markfuktighets- och responsrutiner

Soil properties affect the chemical composition of soil water. When studying transport of chemical substances through a basin, it is therefore important to know from which soil layer the main part of the runoff is generated. The aim of this study is to develop an HBV/PULSE model with merged soil moisture and response routines, which generates good approximations of groundwater levels. It should be possible to extend the model to simulate transport of substances and take into account which soil layer the groundwater level is currently in. The hydrological version of HBV/PULSE is used since there is no need to account for pH or alcalinity at this stage.

Blodtrycksfall, pulstryck och lindriga kognitiva symptom - En polytom logistisk regressionsanalys

People live longer. There is a growing need to increase the knowledge of aging and of the need among the elderly for medical care in the near future. As a step towards meeting this need, a survey among the elderly in Skåne is made by the division of Geriatric Medicine in Malmö University Hospital. This survey is called Gott åldrande i Skåne, GÅS. A frequent decease among the elderly is Mild Cognitive Impairment (MCI).

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.

Skräckfilm och bilden inom bilden : En analys av rörlig bild inom filmen och dess reflexivitet i de japanska skräckfilmerna The Ring, Pulse och Dark Water

Syftet med denna uppsats är att skänka en grundläggande illustration av hur relationen bildinom bild och skräck kan se ut. Studien koncentrerar sig på estetiken och reflexiviteten hosbilderna inom bilden hos de japanska skräckfilmerna The Ring, Pulse och Dark Water. Dessabilder består av ett videoband i The Ring, webbkamerabilder i Pulse och övervakningsbilder iDark Water.Användningen av rörliga bilder inom rörliga bilder är reflexivt i den meningen att vimedvetandegörs om filmmediet självt som en konstruktion av bilder. Detta fenomenuppmärksammar oss också på akten att se. Syftet i skräckfilm är att skapa känslor av olust ochskräck hos oss och detta åstadkoms, bland annat, genom hur bilderna ser ut och är upplagda.Ett återkommande element hos bilderna inom bilden hos våra filmer är otydligheten hosflera av dem och detta att vi inte kan se bilden tydligt kan ge upphov till olustkänslor.

1 Nästa sida ->