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Dissertations / Theses on the topic 'Vanes'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

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1

Hamad, Mohamed Khaled M. A. "Submerged vanes turbulence : experimental analysis." Doctoral thesis, Universitat Politècnica de Catalunya, 2015. http://hdl.handle.net/10803/377436.

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Experimental study was conducted to analyze the physical flow turbulence and sediment distribution with submerged vane. The objectives behind the investigation were verified and compare results with the Odgaard theory, also; achieved to measure vertical pressures acting on both sides of submerged vane, calculate lift and drag forces, lift and drag coefficients experimentally, that the theory of Odgaard was fails to predict satisfactorily. Other motivation of the study was investigates experimentally the hydrodynamic characterization of submerged vanes as; velocities fields, circulation, vort

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2

Chernysheva, Olga V. "Flutter in sectored turbine vanes." Doctoral thesis, KTH, Energy Technology, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3737.

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<p>In order to eliminate or reduce vibration problems inturbomachines without a high increase in the complexity of thevibratory behavior, the adjacent airfoils around the wheel areoften mechanically connected together with lacing wires, tip orpart-span shrouds in a number of identical sectors. Although anaerodynamic stabilizing effect of tying airfoils together ingroups on the whole cascade is indicated by numerical andexperimental studies, for some operating conditions suchsectored vane cascade can still remain unstable.</p><p>The goal of the present work is to investigate thepossibilities of

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3

Youngren, Harold Hayes. "Analysis and design of transonic cascades with splitter vanes." Thesis, Massachusetts Institute of Technology, 1991. http://hdl.handle.net/1721.1/13825.

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Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1991.<br>Title as it appears in the Feb. 1991 M.I.T. Graduate List: Design and analysis of transonic cascades with splitter vanes.<br>Includes bibliographical references (p. 162-164).<br>by Harold Hayes Youngren.<br>M.S.

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4

Van, Dyk Cobus. "The realisation of the solar chimney inlet guide vanes." Thesis, Stellenbosch : Stellenbosch University, 2004. http://hdl.handle.net/10019.1/50175.

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Thesis (MScEng)--University of Stellenbosch, 2004.<br>ENGLISH ABSTRACT: Up to this point in time research on the South African solar chimney, proposed for a site in the Northern Cape, comprised of determining the structural integrity of the chimney structure, as well as airflow calculation, finding the optimal shape for the airflow channels. Not much work had been done on the realisation of the foundation of the global structure, i.e. how the cardinal parts are optimized in an integrated system. The inlet guide vanes (IGV's) should be central in such research efforts, being the main sup

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5

Young, Kim F. "The performance of compressor outlet guide vanes and downstream diffuser." Thesis, Loughborough University, 1988. https://dspace.lboro.ac.uk/2134/13622.

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A large-scale compressor/diffuser test rig has been designed and constructed which,. together with an automated data acquisition system, permits more detailed and more accurate measurements than were previously possible - especially in the region of the compressor OGV's. Results are presented based on experiments carried out using two different single-stage axial-flow compressors operating immediately upstream of a straight-core annular diffuser, each compressor being tested with a conventional stator row and a double-dihedral chevron type of stator row i.e. four main configurations were inves

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6

Wickramasinghe, Kasun. "Shape Memory Alloys in the design of morphing stator vanes." Thesis, University of Sheffield, 2016. http://etheses.whiterose.ac.uk/19331/.

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The thesis can be summarised as an exercise in linking the theoretical knowledge of Nickel Titanium Shape Memory Alloys to a practical space. Background work includes establishing a thorough understanding of the behaviour of Shape Memory Alloys, locating the opportunities for actuation available in gas turbine engines, and evaluating past studies that utilise SMA technologies in aerospace applications. Using this knowledge base, an experimental methodology is devised, focused on assessing criteria specifically related to SMA actuation demands. FEM techniques are employed, using data from the e

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7

Cobian, Marcela Ivonne. "Investigation on the flow dynamics of mesoscale inlet guide vanes." To access this resource online via ProQuest Dissertations and Theses @ UTEP, 2008. http://0-proquest.umi.com.lib.utep.edu/login?COPT=REJTPTU0YmImSU5UPTAmVkVSPTI=&clientId=2515.

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8

Main, A. D. J. "Annular turbine cascade aerodynamics." Thesis, University of Oxford, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.239350.

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9

Mårtensson, Jonathan. "Method development for investigation of real effects on flow around vanes." Thesis, Linköping University, Applied Thermodynamics and Fluid Mechanics, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-57605.

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<p>In the development of turbo machinery components it's desirable to not spend more time than necessary when setting up aero-thermal calculations to investigate uncertainties in the design. This report aims to describe general thoughts used in the development of an ICEM-mesh script and the possible configurations in the script file which enables the user to build mesh-grids with/without clearance gap at the hub and/or shroud for different blade geometries. It also aims to illustrate the performance analysis made on the Vinci LH2 turbine, a next generation upper stage engine to the Ariane 5 ro

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10

Shankara, Prashanth S. "CFD SIMULATION AND ANALYSIS OF PARTICULATE DEPOSITION ON GAS TURBINE VANES." The Ohio State University, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=osu1262290700.

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11

Barker, Brett Jordan. "Simulation of Coal Ash Deposition on Modern Turbine Nozzle Guide Vanes." The Ohio State University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=osu1282140369.

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12

Graf, Will Edward. "Effects of Duct Lip Shaping and Various Control Devices on the Hover and Forward Flight Performance of Ducted Fan UAVs." Thesis, Virginia Tech, 2005. http://hdl.handle.net/10919/33268.

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<p>The military's desire for ducted fan vertical takeoff and landing (VTOL) unmanned aerial vehicles (UAVs) stems from the vehicles' relatively small size, safety in tight quarters, increased payload capacity for their size, and their ability to hover for surveillance missions. However, undesirable aerodynamic characteristics are associated with these vehicles in crosswinds, namely momentum drag and asymmetric duct lift.<p> Because the duct itself, and not the fan, is the root cause of these unfavorable aerodynamic attributes, various lip shapes were tested to determine the effects of leadin

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13

Dahle, Benjamin P. "Evaluating Shallow-Flow Rock Structures as Scour Countermeasures at Bridges." Diss., CLICK HERE for online access, 2008. http://contentdm.lib.byu.edu/ETD/image/etd2544.pdf.

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14

Rahman, Faisal. "Numerical modelling of heat transfer and thermal stresses in gas turbine guide vanes." Pretoria : [s.n.], 2003. http://upetd.up.ac.za/thesis/available/etd-05302005-103404/.

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15

Yan, Jin. "The effect of end wall profiling on secondary flow in nozzle guide vanes." Thesis, Durham University, 1999. http://etheses.dur.ac.uk/4312/.

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This thesis presents detailed investigations of the effect of end wall profiling on the secondary flow in a large scale, linear cascade with nozzle guide vanes. The purpose of this project is to look into the secondary flow structure in the linear cascade and the influence of the shaped end wall on the secondary flow. By applying the non-axisymmetric end wall, the secondary flow is reduced compared to the flat end wall data. The yaw angle variation at the exit of the blade passage is reduced. The cascade was designed according to the nozzle guide vane from ALSTOM Energy Ltd. It was manufacture

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16

Silkowski, Peter D. (Peter Daniel). "Aerodynamic design of moveable inlet guide vanes for active control of rotating stall." Thesis, Massachusetts Institute of Technology, 1989. http://hdl.handle.net/1721.1/42181.

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17

Luehr, Luke Emerson. "Step Misaligned and Film Cooled Nozzle Guide Vanes at Transonic Conditions: Heat Transfer." Thesis, Virginia Tech, 2018. http://hdl.handle.net/10919/83237.

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This study describes a detailed investigation on the effects that upstream step misalignment and upstream purge film cooling have on the endwall heat transfer for nozzle guide vanes in a land based power generation gas turbine at transonic conditions. Endwall Nusselt Number and adiabatic film cooling effectiveness distributions were experimentally calculated and compared with qualitative data gathered via oil paint flow visualization which also depicts endwall flow physics. Tests were conducted in a transonic linear cascade blowdown facility. Data were gathered at an exit Mach number of 0.85 w

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18

Beale, Mark A. "Turning vanes in exhaust duct flow: study for energy efficiency, optimization and pressure drop mitigation." Thesis, Monterey, California: Naval Postgraduate School, 2014. http://hdl.handle.net/10945/43875.

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Approved for public release; distribution is unlimited<br>This thesis presents a computational fluid dynamics (CFD) study on the effects of turning vanes and their placement in an exhaust duct with a sharp bend of ninety degrees and the application toward waste heat recovery devices. CFD models were implemented in ANSYS/CFX to handle flow in both laminar and turbulent regimes. Applying the principles from the Reynolds-averaging Navier-Stokes governing equations as well as the k-ε turbulent model, accurate simulations were performed to explore the behavior of exhaust gas flow field, pressure dr

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19

Nadali, Najafabadi Hossein. "On Film Cooling of Turbine Guide Vanes : From Experiments and CFD-Simulations to Correlation Development." Doctoral thesis, Linköpings universitet, Mekanisk värmeteori och strömningslära, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-117029.

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To achieve high thermal efficiency in modern gas turbines, the turbine-inlet temperature has to be increased. In response to such requisites and to prevent thermal failure of the components exposed to hot gas streams, the use of different cooling techniques, including film cooling, is essential. Finding an optimum film cooling design has become a challenge as it is influenced by a large number of flow and geometrical parameters. This study is dedicated to some important aspects of film cooling of a turbine guide vane and consists of three parts. The first part is associated with an experimenta

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20

Cordero, Samuel F. "Investigation of performance improvements including application of inlet guide vanes to a cross-flow fan." Thesis, Monterey, Calif. : Naval Postgraduate School, 2009. http://edocs.nps.edu/npspubs/scholarly/theses/2009/Sep/09Sep_Cordero.pdf.

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Thesis (M.S. in Mechanical Engineering)--Naval Postgraduate School, September 2009.<br>Thesis Advisor(s): Hobson, Garth V. ; Gannon, Anthony. "September 2009." Author(s) subject terms: Fan, cross-flow, crossflow, inlet guide vanes, thrust vectoring, vertical take off. Description based on title screen as viewed on Nov. 5, 2009. Includes bibliographical references (p. 95). Also available in print.

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21

Baig, Aman uz zaman. "Adjoint Design Optimization for Boundary Layer Ingesting Inlet Guide Vanes with Distorted Inlet Profiles in SU2." University of Cincinnati / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1613686047734509.

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22

Garside, Thomas. "The heat transfer and aerodynamic performance of a rotating turbine in the absence of upstream nozzle guide vanes." Thesis, University of Oxford, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.297061.

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23

Ravines, Mauricio Bazan, Jorge Coronado Vargas, and Bazan Sissi Santos Hurtado De. "Decreased scour on an external river bend using two-dimensional numerical model, in la Perla-Florida and Cantagallo sectors of Rímac river." Institute of Electrical and Electronics Engineers Inc, 2020. http://hdl.handle.net/10757/656420.

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El texto completo de este trabajo no está disponible en el Repositorio Académico UPC por restricciones de la casa editorial donde ha sido publicado.<br>This paper, evaluates a proposal for an external bend fluvial erosion control, using submerged vanes as velocity and shear stress control, verifying its effectiveness by modeling in Iber to calculate the scour produced by discharges with different return periods. The results indicate that the velocity, shear stress and scour decrease along the curve, due to submerged vanes.

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24

Eide, Sølvi. "Numerical analysis of the head covers deflection and the leakage flow in the guide vanes of high head Francis turbines." Doctoral thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for energi- og prosessteknikk, 2004. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-542.

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This thesis includes a brief presentation of the different losses developed in high head Francis turbines, where special attention is paid to the losses in the guide vanes due to the head covers deflection. The different factors determining the extent of the leakage flow are thoroughly examined. Also, since the guide vane facing plate and the head covers are exposed to serious wear due to the presence of sand particles in a high accelerating flow, efficiency measurements of sand eroded and repaired turbines are presented. In addition, results from efficiency measurements of Francis turbines wi

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25

Mattison, Mariell. "Flerskiktat papper : en sammanställning av historia, teknik och forskningsresultat." Thesis, Högskolan Dalarna, Grafisk teknik, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:du-1536.

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Until the beginning of the 1900:th century the paper making process was handicraft. The paper machines that have been developed since then are as impressing in size as fascinating when it comes to the technique. The process has always been improved to give a better paper for lower costs, with as short manufacture time as possible. Stratified forming has been a reality since 1830. From the beginning it was applied to board and paperboard. Now it is also the most common method for making tissue and one paper mill in Austria use it for fine paper. Stratified forming can be categorized as separate

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26

Radmard, Rama Carleton University Dissertation Engineering Mechanical. "An investigation on the effects of the high maximum-thickness-to- chord ratio on the performance of nozzle guide vanes in a transonic planar cascade." Ottawa, 1993.

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27

Chen, Nan [Verfasser], Oskar J. [Akademischer Betreuer] [Gutachter] Haidn, and Stefan [Gutachter] Schlechtriem. "Experimental and Numerical Investigation of a Centrifugal Compressor Stage with Variable Inlet Guide Vanes / Nan Chen ; Gutachter: Oskar J. Haidn, Stefan Schlechtriem ; Betreuer: Oskar J. Haidn." München : Universitätsbibliothek der TU München, 2017. http://d-nb.info/1127728636/34.

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28

Jakubec, Ján. "Matematický model ovládacího mechanismu turbodmychadla." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2013. http://www.nusl.cz/ntk/nusl-230541.

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The Diploma Thesis is focused to create the mathematical model of operating kinematic model for turbocharger DAVNT (Double Axle Variable Nozzle Turbine) for setting the position of vanes. The work contains a brief overview of supercharge and types of turbochargers. The main part contains a mathematical model which examines the behavior of the mechanism with considering of wear among the parts. It also includes assessment of changing in various parts of the nodes caused by mechanism wear and their influence on the mechanism due to important parameters which characterizes the mechanism. The eval

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29

Bertholds, Alexander. "CFD Simulations of the New University of Sydney Boundary Layer Wind Tunnel." Thesis, Uppsala universitet, Institutionen för teknikvetenskaper, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-166945.

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Using Computational Fluid Dynamics Simulations, the flow in the new University of Sydney closed circuit wind tunnel has been analyzed prior to the construction of the tunnel. The objective was to obtain a uniform flow in the test section of the wind tunnel while keeping the pressure losses over the tunnel as low as possible. This was achieved by using several flow-improving components such as guide vanes, screens, a honeycomb and a settling chamber. The guide vanes were used in the corners and in the diverging part leading into the settling chamber, giving a significant improvement of the flow

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30

Рябова, Світлана Олександрівна. "Гідродинамічне удосконалення поворотно-лопатевої гідротурбіни на основі використання просторового профілювання лопатей робочого колеса". Thesis, НТУ "ХПІ", 2017. http://repository.kpi.kharkov.ua/handle/KhPI-Press/29700.

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Дисертація на здобуття наукового ступеня кандидата технічних наук за спеціальністю 05.05.17 – гідравлічні машини та гідропневмоагрегати. – Національний технічний університет "Харківський політехнічний інститут", Харків, 2017. Дисертацію присвячено вирішенню важливої науково-технічної задачі покращення енергетичних характеристик проточної частини низьконапірної осьової гідротурбіни. Виконано огляд науково-технічних джерел щодо методів досліджень гідродинамічних процесів у проточних частинах поворотно-лопатевих гідротурбін. За результатами чисельних досліджень просторової течії в'язкої нестисл

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Рябова, Світлана Олександрівна. "Гідродинамічне удосконалення поворотно-лопатевої гідротурбіни на основі використання просторового профілювання лопатей робочого колеса". Thesis, НТУ "ХПІ", 2017. http://repository.kpi.kharkov.ua/handle/KhPI-Press/29696.

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Дисертація на здобуття наукового ступеня кандидата технічних наук за спеціальністю 05.05.17 – гідравлічні машини та гідропневмоагрегати. – Національний технічний університет "Харківський політехнічний інститут", Харків, 2017. Дисертацію присвячено вирішенню важливої науково-технічної задачі покращення енергетичних характеристик проточної частини низьконапірної осьової гідротурбіни. Виконано огляд науково-технічних джерел щодо методів досліджень гідродинамічних процесів у проточних частинах поворотно-лопатевих гідротурбін. За результатами чисельних досліджень просторової течії в'язкої нестисли

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Sousa, Alves Joao. "Experimental and CFD Analysis of a Biplane Wells Turbine for Wave Energy Harnessing." Thesis, KTH, Mekanik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-124070.

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Several alternative ways of producing energy came up as the world took conscience of the finite availability of fossil fuels and the environmental consequences of its use and processing. Wave and tidal energy are among the so called green energies. Wave energy converters have been under research for the past two decades and yet there hasn’t been one technology that gathered everyone’s acceptance as being the most suitable one. The present work is focused on a self-rectifying turbine for wave energy harnessing. It’s a self-rectifying biplane Wells with an intermediate stator. The main goal is t

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33

Ольштынский, П. Л. "Учет особенностей рабочего процесса направляющего аппарата для повышения технического уровня центробежного насоса". Thesis, Сумский государственный университет, 2016. http://essuir.sumdu.edu.ua/handle/123456789/46026.

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У дисертаційній роботі запропоновано ефективний спосіб підвищення технічного рівня відцентрового насоса за рахунок застосування ступеня з мінімальним діаметральним відносним габаритом, що досягається шляхом використання напрямного апарата з переривчастою перевідною зоною. Основним змістом роботи є дослідження структури течії в елементах напрямного апарата, а також впливу геометричних елементів, що утворюють перевідну зону, на структуру потоку в перевідній зоні та зворотних каналах і на гідравлічні втрати. Дослідження впливу геометричних елементів, що утворюють перевідну зону, на структуру пото

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Hassan, Aamir. "VANET Simulation." Thesis, Halmstad University, School of Information Science, Computer and Electrical Engineering (IDE), 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-2687.

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<p>The number of automobiles has been increased on the road in the past few years. Due to high density of vehicles, the potential threats and road accident is increasing. Wireless technology is aiming to equip technology in vehicles to reduce these factors by sending messages to each other.</p><p>The vehicular safety application should be thoroughly tested before it is deployed in a real world to use. Simulator tool has been preferred over out door experiment because it simple, easy and cheap. VANET requires that a traffic and network simulator should be used together to perform this test. Man

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Marelius, Fredrick. "Vane applications and vane induced flow /." Stockholm, 2001. http://media.lib.kth.se:8080/kthdisseng.html.

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Enklaar, Arnold Helmig. "The Hadra vases /." Amsterdam : Universiteit van Amsterdam, 1992. http://catalogue.bnf.fr/ark:/12148/cb357429858.

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Vertaľ, Peter. "Provoz a údržba vozidel s přeplňovanými motory turbodmychadly." Master's thesis, Vysoké učení technické v Brně. Ústav soudního inženýrství, 2010. http://www.nusl.cz/ntk/nusl-232496.

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The goal is to measure the temperature of the turbocharger after engine shutdown.Measurements wants to show the need to keep a car engine to cool after a heavier burden on the idle speed. It would also prevent possible disruptions turbocharger. The paper also deals with the problems, construction and basic principles of operation of the turbocharger

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Jemberu, Ephraim Alemneh. "Identity management on VANETS." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for telematikk, 2012. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-19281.

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Vehicular ad-hoc networks (VANETs) have envisioned various applications that substantially improve traffic safety and efficiency along the roads and highways. There are on-going projects both in academia and industry to standardize VANETs and to start off their real-life deployment. Despite the huge benefits envisioned by VANETs, they cannot be readily deployed as they are subjects of serious security and privacy concerns. These security and privacy concerns should be addressed and thus VANETs require a sound Identity management architecture before their anticipated deployment. Current resea

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Yu, Xiang. "Urban VANET performance optimization." Thesis, University of Warwick, 2013. http://wrap.warwick.ac.uk/63931/.

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Urban VANET (Vehicular Ad hoc NETworks) performance optimization concerns the improvement of wireless signal quality between two arbitrary selected nodes moving within along city streets. It includes three procedures: VANET architecture modeling; wireless signal simulation; and signal quality optimization techniques. The first procedure converts real-world map data into a network graph according to the requirement of the optimization algorithm. The second step analyzes a communication route between two network nodes and calculates received signal quality with the information provided by the ne

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Li, Guang Yu. "Adaptive and Opportunistic QoS-based Routing Protocol in VANETs." Thesis, Paris 11, 2015. http://www.theses.fr/2015PA112142/document.

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Les réseaux véhicules (VANET) permettent d’offrir des solutions efficaces et rentables pour diverses applications telles que celles liées à : la sécurité routière, la gestion du trafic routier et les applications multimédia en utilisant les communications sans fil multi-sauts entre les véhicules communicants. Cependant, la mise en place et le maintien de liens multi-sauts fiables dans les environnements VANET posent de réels défis principalement à cause des changements rapides de topologie et des déconnexions fréquentes des liens, ce qui conduit à l'échec et l'inefficacité des protocoles de ro

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Raja, Umar Waqas, and Bilal Mustafa. "Issues of Routing in VANET." Thesis, Blekinge Tekniska Högskola, Sektionen för datavetenskap och kommunikation, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-3417.

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Vehicular Ad Hoc Network (VANET) is a sub class of mobile ad hoc networks. VANET provides wireless communication among vehicles and vehicle to road side equipments. The communication between vehicles is used for safety, comfort and for entertainment as well. The performance of communication depends on how better the routing takes place in the network. Routing of data depends on the routing protocols being used in network. In this study we investigated about different ad hoc routing protocols for VANET. The main aim of our study was to identify which ad hoc routing method has better performance

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Fraser, L. C. "Wedding scenes on attic vases." Thesis, University of Oxford, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.371641.

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Al-Doori, Moath. "Directional routing techniques in VANET." Thesis, De Montfort University, 2011. http://hdl.handle.net/2086/5504.

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Vehicle Ad hoc Networks (VANET) emerged as a subset of the Mobile Ad hoc Network (MANET) application; it is considered to be a substantial approach to the ITS (Intelligent Transportation System). VANETs were introduced to support drivers and improve safety issues and driving comfort, as a step towards constructing a safer, cleaner and more intelligent environment. At the present time vehicles are equipped with a number of sensors and devices, including On Board Units (OBU); this enables vehicles to sense situations affecting other vehicles and manage communications, by exploiting infrastructur

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Keener, Kevin Michael. "Evaluation of four strength measurement devices : cone penetrometer, vane shear, modified vane shear, and hand vane in two Ohio soils." The Ohio State University, 1993. http://rave.ohiolink.edu/etdc/view?acc_num=osu1298897218.

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Frélaut, Bertrand. "Les Bleus de Vannes : 1791-1796 : une élite urbaine pendant la Révolution /." Vannes : Société polymathique du Morbihan, 1993. http://catalogue.bnf.fr/ark:/12148/cb35582850t.

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Andersson, Patrik, and Philip Ivarsson. "Vane-engagemang inom online-handel : En studie om vane-engagemang och kognitiv kundupplevelse." Thesis, Högskolan i Gävle, Företagsekonomi, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-36447.

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Syfte: Den här studien presenterar en ny vinkel på forskning inom engagemang och kundupplevelser. Studiens syfte är att undersöka hur konsumenters köpbeteende påverkas av vane-engagemang inom onlineshopping, samt att se hur kvalitén på den kognitiva kundupplevelsen påverkar vane-engagemanget. Metod: Studien utfördes genom en kvantitativ enkätundersökning. 134 respondenter deltog, varav 128 av dessa svar analyserades. Enkäten innehöll 57 frågor och var uppdelad i fem kategorier som representerade olika typer av produkter som inhandlas online. Vidare delades enkätens kategorier upp i två delar s

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Söderlund, Anna-Karin. "Ekologisk konsumtion : Vanas och kunskapens makt." Thesis, Linköping University, Department of Culture and Communication, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-16577.

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<p></p><p>Miljöproblemen blir allt mer aktuella, människor blir mer upplysta och utbudet av de ekologiska livsmedlen ökar i butikerna. Allt fler börjar handla ekologiskt, men fortfarande är det merparten som väljer att inte handla ekologiskt trots att de har en positiv inställning till ekologisk konsumtion. För att klargöra vad som ligger bakom konsumentens val av varor intervjuades fyra informanter, två som till vardags handlar ekologiskt och två som handlar konventionellt. Det finns många anledningar till varför inte konsumenter väljer att handla ekologiskt. När konsumen

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Guo, Haolin. "InCloud-Towards Infotainment Services For VANETs." Thesis, Université d'Ottawa / University of Ottawa, 2014. http://hdl.handle.net/10393/31419.

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In order to realize effective infotainment systems for vehicles, we need to have context-aware applications that use the latest (live) information for an enhanced user experience. Such up-to-date information is now abundantly available on the Internet, due to the explosive growth of the Web 2.0. In earlier times, it was difficult and expensive for vehicles to connect to the Internet. Recent advances in vehicular ad-hoc networks (VANETs) have enabled vehicles to connect to the Internet through road side infrastructures, with little to no additional cost. However, there are several problems with

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Prado, Bernia Antonio. "Reliable and Secure Geocasting in VANETs." Thèse, Université d'Ottawa / University of Ottawa, 2012. http://hdl.handle.net/10393/23285.

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Current geocasting algorithms for VANETs are being designed to enable either private or reliable communications, but not both. Existing algorithms preserve privacy by minimizing the information used for routing, and sacrifice message delivery success. On the other hand, reliable protocols often store node information that can be used to compromise a vehicle's privacy. We have designed two private and reliable geocasting protocols for VANETs that ensure confidentiality. One is a probabilistic algorithm that uses direction-based dissemination, while the other is a deterministic algorithm that us

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Adamopoulos, I. "Representations of architecture on Attic vases." Thesis, University of Southampton, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.377973.

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