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161 Uppsatser om Shock wave - Sida 5 av 11

FMCW-radar för mätning och beräkning av målbana

I detta arbete studeras möjligheterna att använda s.k. "Frequency-Modulated Continuous Wave radar" (FMCW-radar) för att mäta avstånd och radiell hastighet till ett mål. Vidare undersöks möjligheten att använda en följd av sådana mätdata för att skatta banparametrar för ett mål. Vi utför en två-dimensionell Fouriertransform på radardata. Genom att söka upp maximala värdet av transformerade datas absolutvärden erhåller vi en grov skattning av avstånd och radiell hastighet.

Motiv till fusioner : en jämförelse mellan branscher utifrån tre perspektiv

During the twentieth century, mergers&aquisitions have occured in waves where times of low activityfrequently has turned into periods of high activity. M&A:s have been of increasing numbers and growing size, which was extra evident during the last wave during the 1990:s. What are the motives that has made M&A such a widely used strategy? Are there similarities within and across industries regarding merger motives? The empirical material consists of primary and secundary data collected from two mergers in three industries respectively; manufacturing, banking and IT. The analysis make use of three different perspectives, the reason for this being to create understanding and furthermore illuminate the complexity of the problem.

Implementering av digitalt vågfilter av Richardstyp i FPGA

Ett digitalt vågfilter av Richardstyp har implementerats i en FPGA på ett utvecklingskort. Sampel kan skickas till filtret och mottas från filtret via serieporten på en dator. Metoden som användes är att en modell av filtret konstruerades i Simulink. Filtret har modifierats med avseende på skalning, brus och stabilitet. VHDL-koden till filtret genererades i Simulink genom att bygga modellen av Xilinx Blockset.

  Kulturell identitetsutveckling i ett globalt perspektiv : några adult third culture kids berättar

Med ett ökat antal multinationella företag med anställda från hela världen ökar också antalet barn som under sin uppväxt flyttar runt i olika länder, third culture kids. Uppsatsen syftar till och vill belysa hur det kan vara att växa upp i flera olika länder och hur man ser på sin egen kulturella identitetsutveckling. Identitetsutveckling är något alla går igenom. Forskning visar att om man under uppväxten ofta byter kulturellt sammanhang kan det en extra utmaning speciellt när det gäller att utveckla sin kulturella identitet.Fyra personer intervjuades om deras uppväxt och upplevelser som TKC.  Uppsatsen presenterar deras berättelser och tillsammans med tidigare forskning syftar de till att ge en bild av hur det kan vara att växa upp i främmande kulturer men också hur den kulturella identiteten ifrågasätts när man som ung vuxen återvänder till sitt passland.

Radioräckviddsberäkningar för flygande plattformar

There exist several known methods for calculation of radio coverage for ground-based systems. As far as we know there are no equivalent methods for the case of flying platforms when the altitudes and speeds are significantly different to those of ground-based systems. This thesis describes the theoretical concepts behind calculations of radio coverage for flying platforms. An investigation is made to sort out what is important and possible to employ in a model for simulations. A method is described and implemented in a program for evaluation of flying radio systems.

Tidsberoende kvantkemiska beräkningar av optisk absorption hos polymerer och molekyler med litet bandgap

The vertical electronic excitation energies for the narrow-bandgap polymers LBPF, EP37 and EP62 have been calculated using Density Functional Theory (DFT). Also the vertical excitation energies for the acceptor unit of LBPF have been calculated using the Hartree-Fock (HF), DFT and Coupled Cluster (CC) methods. The calculations cover the visible and infrared wave length region and two strong transitions are obtained, one corresponding to the pi to pi* transition and one corresponding to the pi to Acceptor transition. The excitation energies obtained from DFT are below the corresponding experimental results and attempts have therefore been made to perform bench-marking calculations using a hierarchy of CC methods..

Produktutveckling av en sadelpadd

Den här rapporten redogör för utveckling, design och sömnadskonstruktion för en sadelpadd. Rapportens ämne valdes för att jag fann det intressant och har själv stort intresse för hästar och produktutveckling. Fokus på rapporten låg på att ta fram en fungerade prototyp som testades av hästägare för att se om en distansväv skulle klara av att vara det stötdämpande och tryckutjämnande materialet i en sadelpadd. Rapporten och utvecklingen av rapporten bygger på en enkätundersökning och några intervjuer med relevanta personer insatta i ämnena sadelpadd och ryggskador hos hästar. Utifrån den insamlade informationen från de intervjuade och de som svarade på enkäten samt tidgare skrivna källor gjordes en studie i hästars uppkomst av ryggbesvär.

Skolsköterskans möjligheter att stödja skolbarn med psykisk ohälsa

Introduction:Children in early age diagnosed with scoliosis and in need of surgery will grow up to undergo several operations in the back. Parents play a major role in the care of their children during hospitalization.Purpose:The purpose of this study was to investigate parents´ experiences of having a child diagnosed with scoliosis before the age of five undergoing repeated surgeries in the back.Method:The study had a qualitative descriptive design. Five parents with children aged 5-15 years, who have undergone several operations were interviewed about there experiences of the child?s illness and treatment. Phenomenological-hermeneutical analyze where used.Results:The parents felt a sense of shock when they were told about their child?s diagnose and treatment.

Miljöpartiet de Gröna - Från antiparti till stödparti

The overall purpose with this thesis has been to study the strategic development of the Swedish Green Party, Miljöpartiet de Gröna. From its first appearance in the Swedish parliament 1988 to its decision to cooperate with the Social Democrats and the Left Party in 1998, the Greens has gone from a radical antiparty to a pragmatic support party. The analysis has concentrated towards identifying the causal factors behind this strategic move made by the Greens, and to determine how this party change has affected the party's strategic goals. In order to do so, a qualitative case study has been conducted where an integrated theoretical approach has been used. By studying official statements and internal debates the thesis concludes that the strategic change made by the Greens was due to the evolvement of a new dominant coalition of within the party.

Leder kritisk publicitet till kritisk publicitet?

Academic research indicates that critical publicity can have a detrimental effect on brand attitudes. The negative effects have been showed to be buffered by cognitive bias elicited by strong favourable attitudes, commitment, brand certainty and brand identification. It has been proposed that the influence of such bias in a news reporting context should be studied, something that also is interesting from a brand perspective. The study therefore investigated whether a well-publicised scandal in one period can lead to increased critical publicity in the coming periods. A case study of Swedish grocery chain ICA was conducted.

Omvårdnad av patienter som behandlas med ECT - Elektrokonvulsiv terapi : Sjuksköterskans erfarenheter

Introduction:Children in early age diagnosed with scoliosis and in need of surgery will grow up to undergo several operations in the back. Parents play a major role in the care of their children during hospitalization.Purpose:The purpose of this study was to investigate parents´ experiences of having a child diagnosed with scoliosis before the age of five undergoing repeated surgeries in the back.Method:The study had a qualitative descriptive design. Five parents with children aged 5-15 years, who have undergone several operations were interviewed about there experiences of the child?s illness and treatment. Phenomenological-hermeneutical analyze where used.Results:The parents felt a sense of shock when they were told about their child?s diagnose and treatment.

Miljöpartiet de Gröna - från antiparti till stödparti. En analys av Miljöpartiets förändrade partistrategi

The overall purpose with this thesis has been to study the strategic development of the Swedish Green Party, Miljöpartiet de Gröna. From its first appearance in the Swedish parliament 1988 to its decision to cooperate with the Social Democrats and the Left Party in 1998, the Greens has gone from a radical antiparty to a pragmatic support party. The analysis has concentrated towards identifying the causal factors behind this strategic move made by the Greens, and to determine how this party change has affected the party's strategic goals. In order to do so, a qualitative case study has been conducted where an integrated theoretical approach has been used. By studying official statements and internal debates the thesis concludes that the strategic change made by the Greens was due to the evolvement of a new dominant coalition of within the party.

Känslor på kvinnojouren : Jourkvinnors upplevda känslor i möten med våldsutsatta kvinnor

The aim of this study was through theories of emotional labor; understand how staff and volunteers within women?s shelter handled their emotions in the encounters with battered women. To examine this we used a qualitative method and interviewed four staff members and three volunteers spread across four different women?s shelters. The data collected was analyzed using Hochschilds? theory of emotional labor.

Bilder av konflikternas Sydafrika : Två svenska lokaltidningars rapporteringar om Sowetoupproret i Sydafrika 1976

In the year of 2006 I moved to South Africa for a year, a land that has fascinated me because of its history. During the time of my stay I became very surprised how strongly apartheid permeates the community where the white South Africans today are building walls around themselves. Through media we get surrounded with pictures that media creates and to find information regarding what?s happening in the world this is, most often, the primary source. Therefore I believe it?s interesting to explore how two different local newspapers from the county of Kalmar, with two different ideologies, present pictures of the same event, namely the revolt of Soweto in 1976 and how these two newspapers relates to racial policies.

Sjuksköterskans/Vårdpersonalens bemötande av patienter som tar emot svåra besked

Background: Health care is a strange place for the patient. To make this enviroment as good as possible, would the patient be well informed. The patient has right to know if it is a bad mews and often he/she needs caring after the information. Nurse´s basic responsibility is caring, for her/him it´s important to prevent the shock for the patient that can appear. Aim: Describe the nursing staff responses to the patient, using the patient´s perspective in relation to bad news. Method: A litterture review has been made with nine articles. Current research materials that meet the study´s purpose has been applied in databases and analyzed.

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