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1
Berta, Maristella. "Surface transport in the Northeastern Adriatic Sea from Finite-Size Lyapunov Exponents." Doctoral thesis, Università degli studi di Trieste, 2012. http://hdl.handle.net/10077/7762.
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2010/2011The surface transport in the Northeastern Adriatic Sea has been investigated by evaluating, for the first time, the Finite-Size Lyapunov Exponent (FSLE) on the current field detected by the High Frequency (HF) coastal radar network active in the period August 2007 - August 2008. A similar analysis has been carried out on the MITgcm (Massachusetts Institute of Technology general circulation model) current field in order to have a perspective on the various results given by the application of the same FSLE evaluation procedure to different velocity fields. This work includes also the development, testing and calibration of the FSLE evaluation algorithm for the specific Adriatic area considered. The aim of this thesis is to study the surface dynamics of the Northeastern Adriatic current field associated with the typical wind regimes, namely Bora and Sirocco. The strongest and most persistent wind events, coinciding with the radar network activity, have been identified in the first instance from ALADIN (Aire Limitée Adaptation dynamique Développement InterNational) model meteorological data and then confirmed by the in situ meteo-mareographic time series in Trieste and Venice. For comparison purposes, the transport structures developing throughout the longest calm wind periods have also been investigated. In this thesis, the combination of the FSLE resulting from model and radar current fields contributes to interpret the surface transport dynamics in the studied area. In fact, it allows: i) to determine the strongest dynamical features, ii) to extend the transport information beyond the radar coverage and iii) to bring to the light the possible ambiguity of some structures originated from model currents. The FSLE analysis evidenced along the northern Adriatic margin an attractive transport structure with a filament-shaped conformation. The dynamics of this structure is driven by the water exchange between the Gulf of Trieste (GoT) and the North Adriatic Sea. The spatial location of this filament and the advective direction associated with it, vary according to the wind patterns. In fact, in calm wind periods this attractive filament is found right in front of the gulf entrance indicating the pattern of the GoT outflow (east-west direction). During Bora episodes this attractive filament is advected westward and it elongates following the northern Adriatic coast. Differently, Sirocco wind pushes this filament closer to the northeastern coastline reversing the transport direction along it (from west to east). Previous studies evidenced that the current signal in the southern part of the domain is less correlated to the wind pattern with respect to what observed in the northern area of the current field. Therefore also from the FSLE analysis no recurrent transport dynamics is observed in the southern area except for the Bora cases, when a repulsive structure originates from the Istrian coast and it looses strength while it is advected northwestward.
Il trasporto superficiale nella parte nord-orientale del Mar Adriatico è stato studiato calcolando, per la prima volta, i Finite-Size Lyapunov Exponent (FSLE) sui campi di corrente misurati dalla rete di radar ad alta frequenza attiva durante il periodo Agosto 2007 - Agosto 2008. Uno studio analogo è stato effettuato sui campi di corrente del modello MITgcm (Massachusetts Institute of Technology general circulation model), per avere una panoramica sulla varietà dei risultati prodotti dalla valutazione degli FSLE su diversi campi di velocità. Il lavoro include anche lo sviluppo, i test e la calibrazione dell'algoritmo di calcolo degli FSLE per la specifica area dell'Adriatico considerata. L'obiettivo è analizzare la dinamica superficiale del campo di corrente associata ai regimi di vento tipici dell'area nord adriatica, ovvero Bora e Scirocco. Gli episodi di vento più intensi e persistenti, verificatisi durante il periodo di attività dei radar, sono stati identificati in primo luogo dai dati meteorologici prodotti dal modello ALADIN (Aire Limitée Adaptation dynamique Développement InterNational) e successivamente sono stati confermati dalle serie temporali dei dati meteo-mareografici delle stazioni di Trieste e Venezia. A scopo comparativo, sono state analizzate anche le strutture di trasporto sviluppatesi durante i prolungati periodi di calma di vento. In questa tesi, la combinazione degli FSLE risultanti dai campi di corrente dei radar e del modello contribuisce ad una più completa interpretazione della dinamica del trasporto superficiale nell'area di interesse. I risultati ottenuti permettono: i) di determinare le strutture dinamiche più intense, ii) di estendere l'informazione sul trasporto al di fuori della copertura della rete dei radar, nonché iii) di portare alla luce eventuali ambiguità di alcune strutture originatesi dalle correnti del modello. L'analisi degli FSLE ha evidenziato una struttura di trasporto attrattiva che assume l'aspetto di un filamento lungo il margine settentrionale del Mar Adriatico. La dinamica di questa struttura è regolata dagli scambi di acqua tra il Golfo di Trieste ed il Nord Adriatico. La posizione del filamento e la direzione avvettiva associata ad esso dipendono dal regime di vento. Infatti, nei periodi di calma di vento il filamento attrattivo si trova di fronte all'entrata del golfo, ad indicare la direzione del flusso d'acqua in uscita dal golfo stesso (da est ad ovest). Durante gli episodi di Bora il filamento attrattivo è trasportato verso ovest e si allunga seguendo la costa nord adriatica. Invece, lo Scirocco spinge questo filamento verso la costa nord-orientale invertendo la direzione del trasporto associata ad esso (da ovest ad est). Precedenti lavori hanno evidenziato che le correnti nella parte meridionale del dominio sono meno correlate al segnale di vento, rispetto a quanto osservato nell'area settentrionale del campo delle correnti. Quindi anche dall'analisi degli FSLE non si osserva una dinamica di trasporto ricorrente ad eccezione dei casi di Bora, durante i quali si sviluppa una struttura repulsiva lungo la costa Istriana, la cui intensità diminuisce mentre viene trasportata verso nordovest.
XXIV Ciclo
1984
2
Robrade, Kristin [Verfasser], and Martina [Gutachter] Prelog. "FSME-spezifische Immunität bei FSME-geimpften Kindern und Jugendlichen mit JIA / Kristin Robrade ; Gutachter: Martina Prelog." Würzburg : Universität Würzburg, 2020. http://d-nb.info/1211328325/34.
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Marconi, Stefano. "Le sospensioni della vettura FSAE 2010." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2011. http://amslaurea.unibo.it/2054/.
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Mora, Luis Alberto. "Design of a FSAE braking system." Thesis, Massachusetts Institute of Technology, 2018. http://hdl.handle.net/1721.1/119947.
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Thesis: S.B., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2018.Cataloged from PDF version of thesis.
Includes bibliographical references (page 42).
MIT Motorsports is a FSAE Electric team at MIT that designs, manufactures, and tests electric formula style racecars to compete in an annual international collegiate design competition. The braking system for the MY18 vehicle developed by MIT Motorsports must enable the driver to consistently and reliably decelerate the vehicle at the maximum rate allowed by the traction limit of the tires. Crucial engineering data needed for a well-informed design, such as the coefficient of friction of the brake pads, motivated the development of a custom brake dynamometer to empirically test for the required data. The brake dynamometer became a very valuable tool eventually being used to select an appropriate brake rotor material and the most effective cooling geometry for the brake rotors. The braking system also integrates a regenerative braking system that works in parallel with the hydraulic braking system for the purpose of recovering braking energy and thus increasing vehicle efficiency. The MY18 braking system, will increase the maximum vehicle deceleration by 50% compared to MY17 and allow for up to 1kW-Hr more of energy recovery compared to MY17 without compromising reliability or consistency.
by Luis Alberto Mora.
S.B.
5
Chiu, Harriet Alicia. "Design of a FSAE cooling system." Thesis, Massachusetts Institute of Technology, 2019. https://hdl.handle.net/1721.1/123258.
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Thesis: S.B., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2019Cataloged from PDF version of thesis.
Includes bibliographical references (page 24).
MIT Motorsports is a FSAE Electric team at MIT that designs, manufactures, and tests electric formula-style racecars to compete in an annual collegiate competition. The cooling system for the Model Year 19 vehicle must provide adequate cooling to the motors and motor controllers, meet power consumption requirements dictated by the low voltage battery, and minimize system mass. Fluid modelling and benchtop testing were used to select the most suitable pump, fan and radiator. Tube routing and mounting design also have to allow for serviceability. With the use of a cooling test bench, a flow architecture was developed, and components were modified and tested to meet specifications.
by Harriet Alicia Chiu.
S.B.
S.B. Massachusetts Institute of Technology, Department of Mechanical Engineering
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Coco, Massimiliano. "Progettazione di un riduttore epicicloidale per applicazione FSAE Electric." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2020.
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Il presente elaborato descrive le fasi di progettazione di un riduttore epicicloidale per una vettura elettrica partecipante alla competizione FSAE. Dopo una breve introduzione sulla competizione e sui dati di progetto, il lavoro si focalizza sul dimensionamento degli ingranaggi. Successivamente, si analizzano le fasi di progettazione della struttura del riduttore e relative simulazioni con il metodo degli elementi finiti. L'elaborato si conclude con la progettazione delle correzioni micrometriche dei denti.
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Çobi, Alban C. (Alban Chris). "Design of a carbon fiber suspension system for FSAE applications." Thesis, Massachusetts Institute of Technology, 2012. http://hdl.handle.net/1721.1/74433.
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Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2012.Cataloged from PDF version of thesis.
Includes bibliographical references (p. 35).
Reducing weight while maintaining structural integrity is one of the key challenges Formula SAE teams face as they try and design the suspension of the formula car. The purpose of this paper is to present experimental data on designing and optimizing a carbon fiber suspension system for formula cars. The reason carbon fiber suspensions are favored over the current steel suspensions is because of they can reduce the weight of the suspension by 50%. Pull tests on an Instron machine were performed on over 15 specimens composed of a carbon fiber tube with an aluminum insert bonded to each end. Loctite E-120HP epoxy was used and the surface preparation, bond gap, and bond length were varied to find the optimal bond strength. An average bond strength of 2,382.6 pounds per square inch was determined for specimens with surface preparation. Furthermore a bond gap of 0.0065 to 0.008 inches was found to give the strongest bond.
by Alban C. Cobi.
S.B.
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Matchett, Michael William. "Resolution of enantiomers using cyclodextrins in HPLC, FSCE and NMR." Thesis, University of Bath, 1996. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.307070.
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Melendez, Alvaro J. "Design of a power limiter for an FSAE electric racecar." Thesis, Massachusetts Institute of Technology, 2019. https://hdl.handle.net/1721.1/123279.
Full textAbstract:
Thesis: S.B., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2019Cataloged from PDF version of thesis.
Includes bibliographical references (page 23).
MIT Motorsports is the Formula SAE team at MIT that has competed in Lincoln, NE since 2013. Last year's racecar performed exceptionally in all dynamic events but was disqualified from the endurance event due to a power violation. In order to prevent a violation in the following year, a power limiter was developed to ensure that the power consumption of the vehicle is reliably under the limit. Since weight and space come at a premium when it comes to an electric racecar, the power limiting approaches were implemented through C code in the car's Vehicle Control Unit. The power limiter makes use of a feed-forward mechanical power limiter combined with an electrical power limiter that makes use of the battery's power consumption with the use of a PI closed-loop controller. Powertrain efficiency calculations were performed to best model the power consumption of the vehicle. Testing became an essential tool used to develop, debug, and validate the power limiter. This year's power limiter will reliably keep the team under the power limit while minimally affecting performance to increase our potential at the next competition.
by Alvaro J. Melendez.
S.B.
S.B. Massachusetts Institute of Technology, Department of Mechanical Engineering
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Alexander, Ashley II. "Analysis of Using Electronic Fuel Injection In Restricted FSAE Competition Engines." University of Cincinnati / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1305893914.
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Chothani, Tejas N. "A Complete Multi-Body Model for an FSAE Space Frame Car." University of Cincinnati / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1384428195.
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Owen, Elliot Douglas. "The benefits of 4WD drive for a high-performance FSAE electric racecar." Thesis, Massachusetts Institute of Technology, 2018. http://hdl.handle.net/1721.1/119907.
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Thesis: S.B., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2018.This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.
Cataloged from PDF version of thesis.
Includes bibliographical references (page 81).
This thesis explores the performance of Rear-Wheel Drive (RWD) and Four-Wheel Drive (4WD) FSAE Electric racecars with regards to acceleration and regenerative braking. The benefits of a 4WD architecture are presented along with the tools for further optimization and understanding. The goal is to provide real, actionable information to teams deciding to pursue 4WD vehicles and quantify the results of difficult engineering trade-offs. Analytical bicycle models are used to discuss the effect of the Center of Gravity location on vehicle performance, and Acceleration-Velocity Phase Space (AVPS) is introduced as a useful tool for optimization. Lap-time Simulation is used to determine the regenerative braking energy available for recovery during a race for RWD and 4WD vehicles.
by Elliot Douglas Owen.
S.B.
13
Le, Van Tuan. "Establishment of a memory B cell assay using recombinant Flavivirus protein for determinant of specific antiviral immunity." Doctoral thesis, Universitätsbibliothek Leipzig, 2014. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-151733.
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Tick-borne encephalitis virus (TBEV) is a serious viral infection that affects the central nervous system. It was estimated that between 1990 and 2009 a total of 169,937 cases of TBE were recorded in Europe. TBEV belongs to genus Flavivirus that comprises over 70 viruses, many of them are important human pathogens. Most members are either transmitted by mosquitoes e.g. West Nile virus (WNV), Dengue virus (DENV) or ticks e.g. TBEV. Due to the extensive antigenic cross-reactivity among flaviviruses serological diagnosis of TBE infections is commonly difficult in areas where more than one virus type circulates. Particularly, a situation now exists in Europe, where TBEV and WNV are endemic in many countries Thus, this thesis focused on the one hand on optimization of serological test systems using recombinant envelope protein domain III (rED3). It represents domain 3 of the major antigen, the surface protein E, which additionally has been shown to induce flavivirus specific neutralizing antibodies. Therefore rED3 was expressed and purified and its application as antigen in ELISA for TBEV diagnosis was verified.
On the other hand a memory B-cell assay was established to analyse antiviral immunity after TBEV-vaccination. Here rED3 was used as antigen to determine the frequency of rED3 specific antibody-secreting cells (ASCs). Vaccination is the most effective method of preventing TBE disease and is currently recommended for all those who live and work or travel to areas of TBE endemicity. An essential requirement of any vaccine is the induction of long-term protective immunity. Several vaccines have defined levels of serum antibody (as measured by ELISA, haemagglutination inhibition test, or neutralisation test) that serve as correlates or surrogates of protective immunity. But this does not take account of vaccine induced memory B cells. Although, not providing direct protection against infection, they represent an important second line of immune defence that is initiated only if pre existing antibody levels are too low to prevent infection or if the invading pathogen is able to circumvent the pre-existing antibody response. A thorough understanding of the frequencies of antigen-specific memory B cells and their relationship with the antibodies in serum serological memory is likely to be critical to give information about the long-term efficacy of vaccine as well as its correlates of protection.
This thesis focuses on the establishment of a recombinant protein based ELISA and of a memory B cell assay for analysis of specific antiviral immunity after vaccination with the following two objectives: (1) Expression and purification of recombinant envelope protein domain 3 (rED3) and verification of its application as antigen in ELISA for TBEV diagnosis; (2) Establishment of a memory B cells assay using rED3 for determination of frequency of rED3 specific antibody-secreting cells (ASCs) in individuals vaccinated against TBE.
In this study, TBEV- and WNV-specific antigen ED3 was expressed in E. coli as MBP fusion proteins with C-terminal histidine tag using pMAL-c2x vector. By purification with amylose affinity chromatography followed by nickel affinity chromatography, highly purified TBEV rED3 and WNV-rED3 were obtained. Nevertheless, using TBEV-rED3 protein in Western Blot unspecific reaction with serum antibodies of negative serum was detected and a differentiation between WNV infection and TBEV was impossible, probably due to the MBP moiety.
However, using the purified rED3 protein as antigen in ELISA, TBE virus-specific antibodies were detected specifically. Twenty-three serum samples predefined as TBEV positive were tested positive by rED3-based ELISA and commercial IgG ELISA. Five predefined negative serum samples were tested negative by rED3-based IgG ELISA as well as commercial IgG ELISA. But cross reactivity of WNV and DENV positive sera was detected in 15 of 18 sera by commercial ELISA. On the other hand, these samples were found negative in TBEV rED3-based ELISA. Thus, TBEV-rED3-based ELISA allows a differentiation of infections caused by TBE serogroup and mosquito-borne flaviviruses but not the inactivated virus based commercial ELISA. Interestingly, compared to neutralisation test the specificity of rED3-based ELISA obtained 100% with a sensitivity of 91.6%. In contrast, the commercial ELISA obtained 100 % sensitivity but a low specificity with only 42.8%.
In order to determine frequency of antigen-specific antibody secreting cells (ASCs) produced by individuals who received the vaccination against TBE, peripheral blood mononuclear cells (PBMCs) were isolated from blood samples. Subsequently, memory B cells were activated with R848 (Resiquimod) and human recombinant IL-2 (hrIL-2) for 72 hours in 37°C, 5% CO2, 90% humidity. After 72 hours of incubation, Enzyme-Linked Immunospot (ELISPOT) detected antigen-specific memory B cells. In order to evaluate specificity of TBEV-rED3 in ELISPOT, other antigens including WNV-rED3, Maltose binding protein (MBP) and Influenza Nucleoprotein (NP) were included. Study subjects could be separated into two groups: last vaccination before 5 years or longer than 10 years. TBEV-rED3 specific ASCs could be detected in 11 of 12 TBE vaccinated individuals with different vaccination history and even low serum anti-TBE antibodies levels. TBEV-rED3 specific ASCs were found with frequency of ranging 0.016-0.188 % per total IgG ASCs and lower than frequency of Influenza-NP specific ASCs (between 0.012-0.51%). But TBE-specific memory B cells could be maintained for more than 20 years of post-vaccination. There was a significant difference in number of ASCs between vaccinated and non-vaccinated group (p<0.05). Interestingly, there was no significant difference between TBE vaccinated groups between 1-5 years (mean of 2.5 years) and >10 years (mean of 16.5 years) since vaccination (p>0.05). These finding proved that memory B cells have been stable for years and are maintained up to 25 years since last vaccination.
A statistic analysis showed that there was no significant correlation between serum levels of anti-TBEV antibodies and the frequency of rED3 specific IgG ASCs (p>0.05, Spearman’s coefficient r = 0.36). A similar result was also indicated for influenza-vaccinated individuals (p>0.05, Spearman’s coefficient r = 0.27). These findings revealed that memory B cells and plasma cells maybe play an independently role in maintaining of immunological memory. Anyway, neutralizing antibodies have been found in all vaccines (a Geometric mean titre (GMT) of 96.04, 95% confident interval (CI): 52.76-174.8) and thus were maintained for a long time since last vaccination. Interestingly, the quantitative determination of specific IgG in TBE post-vaccination sera by rED3-based ELISA exhibits a good correlation with neutralizing antibody titres. The presence of specific antibodies in rED3-based ELISA is therefore highly predictive for the presence of neutralizing antibodies, and this correlation can probably be used in the future to establish guidelines for recommendations of booster vaccinations. Additionally, it became apparent that the number of previous booster vaccinations correlated strongly with the frequency of circulating memory B cells. As expected, individuals who received a booster increased both the specific antibody titre and frequency of antigen specific memory B cells. This suggests that immunological long-term memory induced by booster immunizations is better reflected by the circulating memory B cells than the amount of the antibody titre. Thus, memory B cells seem to be a more reliable parameter for the assessment of long-term immunity.
Taken together, a highly antigenic rED3 using the bacterial expression system was produced and it is a promising alternative to whole inactivated virus in ELISA. Notably, rED3 was a reliable antigen for detecting antigen-specific memory B cells in individuals who have been previously TBEV vaccinated. This study provides data on immunological memory for TBE vaccination and might be useful for reconsideration of recommendations for booster dose.
In conclusion, boosters of vaccination should be recommended for all individuals who live and work or travel to areas of TBE endemicity. As consequently, vaccine-induced protection is enhanced by both strong humoral and cell-mediated immune responses. If pace of pathogenesis is rapidly growing, pre-existing virus-specific antibodies represent the first line of defence against infection before the memory response is fully activated and implemented. They clearly function best together to efficiently protect against disease.
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Candeloro, Mattia. "Progettazione dell'assieme motore per una macchina sincrona PMSM framless per applicazione FSAE Electric." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2019.
Find full textAbstract:
L’attività principale del progetto di tesi riguarda la progettazione di tutti i componenti utili all’installazione di un motore PMSM (Permanent Magnet Synchronous Motor) frameless per una specifica applicazione motorsport: una monoposto totalmente elettrica rientrante nella categoria FSAE Electric.
La prima parte dell’elaborato ha lo scopo di fornire conoscenze trasversali introducendo al mondo dei trasporti elettrici, passando dal tema ambientale ai metodi di scelta di un propulsore elettrico, per concludere con i possibili concept di trasmissione.
Entrando nel vivo del design, la prima fase della progettazione sarà quella inerente alla scelta di layout di tutto l’assieme di supporto degli stessi con particolare attenzione al case, all’albero motore ed ai cuscinetti, tenendo in conto la predisposizione ad un’eventuale camicia di raffreddamento a liquido.
Noti i parametri salienti del progetto, nonché vincoli e carichi, si passa alla progettazione strutturale dei componenti con l’ausilio di calcoli analitici e simulazioni FEM sul modello CAD via via sviluppato.
La fase finale del progetto di tesi riguarda il design dell’assieme del banco prova, compreso di piastra principale e supporti, scelta sensori, giunti e protezioni di sicurezza.
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Jabs, Fredrick W. "Simplified Tools and Methods for Chassis and Vehicle Dynamics Development for FSAE Vehicles." University of Cincinnati / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1342728980.
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Poli, Marianna. "Valutazione di software per l'analisi di dati clinici di spettroscopia di risonanza magnetica cerebrale." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2021. http://amslaurea.unibo.it/24333/.
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L’Imaging a Risonanza Magnetica (MRI) e la Spettroscopia di Risonanza Magnetica (MRS) sono strumenti preziosi per indagare in modo non invasivo l’anatomia e le funzioni del cervello umano. Le informazioni estratte dai dati MRI e MRS possono essere utilizzate come biomarker per lesioni cerebrali.
La spettroscopia studia i metaboliti presenti in una regione di interesse e il profilo metabolico della regione dipende dal tipo di tessuto che è stato selezionato.
Per questa Tesi abbiamo applicato la pipeline FAST del tool FSL-MRS di una software library, FSL, sviluppata per l’analisi delle immagini e per la statistica dei dati provenienti da immagini di risonanza magnetica. La pipeline è stata applicata al dataset anonimizzato dell’IRCCS Istituto delle Scienze Neurologiche di Bologna, ospedale Bellaria delle acquisizioni di spettroscopia cerebrale di RM in diverse localizzazioni del cervello, che costituiscono il pool di dati di volontari sani utilizzati come riferimento per le valutazioni cliniche in ambito neurologico.
L’algoritmo FAST calcola la segmentazione, ovvero la percentuale di tessuti cerebrali (sostanza bianca, sostanza grigia e liquido cefalorachidiano), nei voxel indagati dalla Spettroscopia di RM. È stata poi valutata la bontà della segmentazione per poter procedere con ulteriori studi indirizzati specificatamente al tessuto della regione interessata.
Si è scelto di utilizzare FSL perché è un software free e utilizza un approccio come quello di LCModel (http://lcmodel.ca/lcm-license.shtml) che è il software maggiormente utilizzato in questo ambito ed è solo recentemente diventato gratuito. Inoltre FSL offre dei tool aggiuntivi come quello della segmentazione che è stato valutato in questa Tesi.
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Telleria, Gabriel Martin. "From Vandals to Vanguard: Vanguardism through a Neoinstitutional Lens: Case Study of the Sandinista National Liberation Front." Diss., Virginia Tech, 2011. http://hdl.handle.net/10919/27137.
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The Sandinista Revolution is arguably the most significant event in Nicaraguan history. Because of its historical importance and distinctive socio-cultural context, the Sandinista Revolution offers significant opportunities for scholarly inquiry. The literature on the Sandinista Revolution is substantial. However, little is known about the organization Sandinista National Liberation Front (FSLN) and how it evolved into the leader of the movement which sought to overthrow the 45-year Somoza dictatorship. In revolutionary literature, the concept of revolutionary vanguard or vanguard party is common. However, the notion of vanguardism as a process and what constitutes a vanguardist organization is yet to be explored. This study aims to provide such an investigation, through an examination of the insurrectional period (1974-1979) leading up to the Sandinista Revolutionary Victory in 1979. Grounded in Scottâ s (2008) institutional framework, this study describes the evolution of the FSLN into the vanguard of the anti-Somoza movement, identifying relationships between institutional elements involved in the FSLNâ s institutionalization process and progression into â leaderâ of the movement. Data from interviews, newspaper articles, and video documentaries were scrutinized in search of answers to the question: How do mechanisms, carriers, and agency as elements of institutions explain vanguardism in the case study of the FSLN? This research reveals critical mechanisms, carriers and agency in the vanguardism of the FSLN, and explains how these elements supported this process. In this sense, this research reveals distinctive characteristics in vanguardism as an institutional process, which differentiate vanguardism from other processes. This research presents an opportunity to learn about the FSLN-a vastly unique politico-military organization. Additionally, there is an opportunity to broaden our observational lens, taking a neoinstitutional approach, to illustrate new ways in which organizations evolve, change and adapt to their environments. Lastly, this study hopes to pave the way for future studies in organizational vanguardism.Ph. D.
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Stern, Ricarda Charlotte [Verfasser], and Martina [Gutachter] Prelog. "Frühsommer-Meningoenzephalitis (FSME)-spezifische IgG Antikörper Konzentration, IgG Antikörper Avidität und FSME-spezifische T-Zell-Antwort nach primärer Vakzinierung bei Kindern mit Juveniler idiopathischer Arthritis / Ricarda Charlotte Stern ; Gutachter: Martina Prelog." Würzburg : Universität Würzburg, 2020. http://d-nb.info/1222439638/34.
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Pidcock, Andrew H. "FSL : a language for constraint programming with booleans and reals." Thesis, McGill University, 1993. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=69644.
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In this thesis, we present FSL, a constraint programming language for numerical computation in booleans, integers and reals. FSL is a functions-with-state language, meaning that in addition to the usual numerical operations, the user can declare and use functions that can have states, much like sequential boolean circuits, or objects in object-oriented programming. Despite this feature, FSL's input is entirely in the form of equations with a minimum of additional syntax.A users' manual for FSL and some examples of the problems it was applied to introduce the language and its uses. The design of the FSL language is discussed, and then an overview of the implementation of the interactive FSL interpreter is given, followed by complete details, suitably organized and indexed for maintenance and continuation of the project. A full tutorial of the CASE tools Lex and Yacc is included, detailing the specific example of FSL and the interaction of the tools in the design of a parser.
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Angelini, Nicholas Alexander. "Simulating Dynamic Vehicle Maneuvers Using Finite Elements For Use In Design Of Integrated Composite Structure." Thesis, Virginia Tech, 2014. http://hdl.handle.net/10919/46995.
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Formula SAE (FSAE) chassis systems are increasing being manufactured with integrated composite structures in an effort to increase the performance of the system while decreasing weight. The increased use of composite structures requires more details of the loading conditions and evaluation metrics than the mild steel structures they are replacing. The prototypical FSAE steel space frame chassis designs are heavily structured around the mandated safety rules that doubled as mostly satisfactory structures for vehicle loads. The use of composite structures and the directionality of their material properties has created a need for more detailed loading scenarios to evaluate their ability to transfer load.
This thesis presents a framework for evaluating the chassis structure not only through the standard static twist analysis, but increased use of modal analysis and dynamic vehicle maneuvers using an attached suspension. The suspension joints and springs/dampers are modeled using Abaqus Connector Elements, allowing for the use of complex kinematic degrees of freedom definitions required to accurately model the suspension behavior. The elements used to represent the joints and springs are detailed as well as their superiority over traditional multi-point constraints in this context.
The use of modal analysis is used for a more direct comparison of not only the efficiency of stiffness in the chassis alone, but also how the chassis interacts with the suspension. The natural frequencies from the modal analysis along with the static twist distribution along the chassis are presented as a replacement for the static torsional stiffness performance metric.
By using dynamic vehicle maneuvers the chassis-suspension structure can be evaluated based on loads developed during the typical use of the FSAE vehicle. The dynamic nature of the analysis also allows for the inclusion of mass in the loading profile as well as the load variation with time that can be hard to achieve with static analysis. The framework for a bump event as well as a constant-speed-constant-radius turn are presented. The bump analysis is designed to evaluate the system's response to straight line dynamic events, while the turning maneuver evaluates the lateral components of the suspension load transfer capabilities. For the turn analysis both a spring/damper tire model using connector elements and a rolling tire model are presented. Intermediate checks on suspension and chassis behavior are evaluated to verify the modeling techniques; while the maneuver results are evaluated based on trends and overall motion rather than magnitudes due to lack of data at the time of the analysis.Master of Science
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Lamarre, Patricia Grace. "The structure and organization of professional development : perceptions of FSL teachers." Thesis, University of British Columbia, 1988. http://hdl.handle.net/2429/28097.
Full textAbstract:
Two developmental theories propose guidelines for professional development programs. The basic assumption shared by both these theories is that teachers' preferences will vary between individuals and that this variation reflects different stages of teachers' development. Teachers at lower levels of development (either professional or conceptual) will prefer highly structured programs that focus on "concrete" concerns, with little interaction between peers. Teachers at higher levels of development will prefer loosely structured programs, with more teacher interaction, autonomy, and discussion of theoretical problems underlying "concrete" issues.
This study investigated: 1) FSL teachers' preferences for decision-making roles and for content in professional development programs; 2) FSL teacher characteristics possibly influencing teachers' preferences for professional development.
Teachers' preferences were measured using an instrument developed by the researcher. The survey consisted of two parts:
1) A section on teachers' characteristics, providing a profile of the teacher's background and current professional development opportunities;
2) A questionnaire on teachers' preferences for structure and content in professional development programs. The survey was answered by 132 teachers from 12 school districts in British Columbia (12.2% of all French teachers in British Columbia).
The findings showed that respondents would like to actively participate in professional development programs. Teachers' preferences for structure and content were varied. This supports one basic assumption of developmental approaches: that the learning environment and material of professional development programs should be designed to meet the varied needs of teachers.
Teachers did not express a preference for lower level content and a directive structure of professional development. While professional development programs should address the varied needs of participating teachers, it should not be aimed primarily at lower levels of development, as can be assumed from the findings of developmental research.
When teachers' characteristics were examined as possible factors influencing teachers' preferences for structure and content, no significant differences were observed between teacher characteristics and their preferences for content. Significant differences were observed between teacher characteristics and teachers' preferences for structure (decision-making roles). Two teacher characteristics showed significance: 1) Grade level taught by FSL teachers and their preference for structure in the presentation of professional development content. A significant number of elementary school teachers preferred to leave responsibility for presentation with a supervisor. A significant number of secondary teachers preferred a collaborative structure.
2) Significant differences were observed between teachers' current professional development opportunities and their preferences for decision-making roles in a professional development structure. A significant number of teachers that had previously had responsibility for decision-making expressed a preference for a non-directive structure. Teachers that had never had responsibility preferred to leave decision-making to a supervisor.
From these results, it can be concluded that teacher characteristics might be influencing teachers' preferences and should be taken into account by organizers of professional development. The responsibility experienced by teachers in their current professional development activities would appear to be a factor influencing their preferences for future responsibility. The importance of environment in stimulating growth would appear to be a factor deserving the consideration of both practitioners intending to adopt a developmental approach and researchers in this area.Education, Faculty of
Language and Literacy Education (LLED), Department of
Graduate
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Norberg, Erica. "Förstudie gällande dokumentering ochöverlämning av projekt vid fältenhetenshandläggare inom FSO och FSL." Thesis, Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-80320.
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Janitza-Futterer, Dorothee. "Serologische Untersuchungen zur endemischen Situation der Infektion mit dem FSME-Virus in einer südbadischen Pferde- und Hundepopulation." Diss., lmu, 2003. http://nbn-resolving.de/urn:nbn:de:bvb:19-11255.
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Höllein, Nikolaus Sebastian [Verfasser], and Ulrich M. [Akademischer Betreuer] Lauer. "FSME am UKT 2001 - 2017. Daten zur Epidemiologie und Klinik / Nikolaus Sebastian Höllein ; Betreuer: Ulrich M. Lauer." Tübingen : Universitätsbibliothek Tübingen, 2018. http://d-nb.info/1169652352/34.
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Salgado, Maria Mercedes. "Recrutamento em movimentos de alto risco: o caso da Frente Sandinista de Libertação Nacional (FSLN) da Nicarágua." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/8/8132/tde-20072016-171022/.
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O objetivo dessa pesquisa é explicar quais os motivos que levaram os ativistas da Frente San-dinista de Libertação Nacional (FSLN) da Nicarágua a se engajarem em um movimento de alto risco. Argumenta-se que o recrutamento ocorreu nas diferentes fases do movimento e, para explicá-lo, foram reconstruídas as oportunidades políticas para o surgimento da Frente Sandinista; as razões da escolha do repertório de confronto violento; a combinação desse re-pertório com outro não violento; o processo de constituição da liderança de Carlos Fonseca e seu papel angular na construção dos enquadramentos interpretativos sandinistas que atraíram os ativistas para a mobilização. A dissertação analisa também o perfil sociopolítico de ativis-tas de alto risco atuantes no caso estudado, aferindo suas semelhanças e diferenças em compa-ração com participantes de outros movimentos revolucionários latino-americanos. Procura-se identificar fatores individuais e estruturais que levaram esses ativistas a se decidirem por tal tipo de engajamento. Foram utilizadas técnicas de pesquisa quantitativa e qualitativa para ana-lisar 121 entrevistas em profundidade das e dos ativistas da Frente Sandinista. Os resultados afiançam que os motivos para engajamento no ativismo de alto risco foram: uma profunda identificação com o antissomozismo propalado pelo movimento, facilitada pela disponibilida-de biográfica dos ativistas e por seus laços sociais, prévios ao seu engajamento, em particular vínculos organizacionais, com os movimentos estudantil e religioso, e vínculos pessoais, via amigos e familiares.The objective of this research is to explain the motives that led the activists of the Sandinista National Liberation Front (FSLN) of Nicaragua to engage in a high-risk movement. As re-cruitment occurred in different phases of the movement, it was rebuilt the political opportuni-ties for the emergence of the Sandinista Front; the reasons for the choice of violent confronta-tion repertoire; the combination of this repertoire with a nonviolent repertoire; the leadership of Carlos Fonseca and its angular role in the construction of the Sandinistas interpretive frameworks that attracted activists to mobilize. Once rebuilt the movement\'s bases, analyzed the overall profile and high risk of activists, assessing their similarities and differences com-pared to participants from other Latin American revolutionary movements; and individual and structural factors that led these activists decided on this type of engagement. Quantitative and qualitative research techniques were used to analyze 121 in-depth interviews of activists and the Sandinista Front. The results bail that the reasons for engaging in high-risk activism were a deep identification with the anti-somozismo movement, facilitated by biographical availabil-ity of activists and their social ties, organizational and individual, prior to their engagement. Ties with the student movement and religious prevail between (the) recruited (them), as well as strong ties with friends and family.
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Kupča, Anne Martina. "Ixodes ricinus (Ixodidae) saisonale Aktivität und natürliche Infektionen mit dem FSME-Virus an ausgewählten Standorten in Bayern." Giessen VVB Laufersweiler, 2009. http://d-nb.info/995996741/04.
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Greis, Andrea. "Charakterisierung der pyrogenen Eigenschaften des Fibroblasten-stimulierenden Lipopeptids-1 (FSL-1) beim Meerschweinchen." Giessen : VVB Laufersweiler, 2007. http://geb.uni-giessen.de/geb/volltexte/2007/4756/index.html.
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Sprenger, Uta. "Le FSE et les salarié(e)s des PME : une comparaison France-Allemagne /." Paris : RACINE, 2004. http://catalogue.bnf.fr/ark:/12148/cb392361489.
Full textAbstract:
Texte remanié de: Th. doct.--Sci. de gestion--Lyon 3, 2002. Titre de soutenance : L'influence de la Commission européenne sur le développement des ressources humaines dans les petites et moyennes entreprises : une comparaison France-Allemagne.FSE = Fonds social européen. PME = Petites et moyennes entreprises. En appendice, choix de documents. Bibliogr. p. 165-173. RACINE = Réseau d'appui et de capitalisation des innovations européennes.
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Gomes, Maria Jakelyn Dias de Faria. "Processamento de imagens BOLD de Ressonância Magnética do músculo através da técnica ICA." Master's thesis, Faculdade de Ciências e Tecnologia, 2013. http://hdl.handle.net/10362/10915.
Full textAbstract:
Dissertação para obtenção do Grau de Mestre em
Engenharia BiomédicaA presente dissertação de mestrado, tem como objectivo o processamento de imagens Blood Oxygen Level Dependent (BOLD), dos músculos da perna, quando submetidos a exercício intenso até ser atingida a fadiga muscular, recorrendo à técnica de processamento Independent Component Analysis (ICA). A ICA é um método estatístico utilizado para descobrir factores escondidos, procura decompor os dados em mapas espaciais independentes e em gráficos da variação no tempo, nos quais idealmente cada um representaria diferentes artefactos ou padrões de activação. Esta técnica foi aplicada com carácter exploratório no presente estudo, pretendendo-se encontrar dados relevantes, que de outro modo não seriam possíveis. As imagens BOLD utilizadas neste estudo foram adquiridas durante a realização de uma dissertação anterior a esta, realizada por Ana Rita Pereira com o tema: "Processamento de Imagens BOLD de Ressonância Magnética do Músculo". O paradigma utilizado foi o salto unipedal, executado em posição ortostática, permitindo atingir a fadiga muscular em poucos minutos. O pré-processamento das imagens foi feito com o software OsiriX e FMRIB Software Library (FSL) e o processamento foi feito com o software FSL. Os resultados permitiram verificar que a análise efectuada não permitiu separar cada componente em diferentes mapas espaciais. Verificou-se que as variáveis (músculos e fluxo sanguíneo nos vasos sanguíneos) não são independentes. Desta forma, não foi possível verificar isoladamente activação nos diferentes músculos a analisar, o gastrocnémio e trícipete sural para cada voluntário. Verificou-se uma elevada activação nos músculos flexores e extensores dos dedos dos pés e uma elevada activação decorrente do fluxo sanguíneo nos vasos sanguíneos.
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Herrmann, Manuel. "Torsional Stiffness and Natural Frequency Analysis of a Formula SAE Vehicle Carbon Fiber Reinforced Polymer Chassis using Finite Element Analysis." DigitalCommons@CalPoly, 2016. https://digitalcommons.calpoly.edu/theses/1692.
Full textAbstract:
Finite element is used to predict the torsional stiffness and natural frequency response of a FSAE vehicle hybrid chassis, utilizing a carbon fiber reinforced polymer sandwich structure monocoque and a tubular steel spaceframe. To accurately model the stiffness response of the sandwich structure, a series of material tests for different fiber types has been performed and the material properties have been validated by modeling a simple three-point-bend test panel and comparing the results with a physical test. The torsional stiffness model of the chassis was validated with a physical test, too. The stiffness prediction matches the test results within 6%. The model was then used to model the natural frequency response by adding and adjusting the materials’ densities in order to match physical mass properties. A hypothesis is made to explain the failure of the engine mounts under the dynamic response of the frame.
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Tognolli, André. "Estudo da influência dos parâmetros geométricos na redução de esforços no sistema de direção de um veículo FSAE/." reponame:Biblioteca Digital de Teses e Dissertações da FEI, 2015. http://sofia.fei.edu.br:8080/pergamumweb/vinculos/00000d/00000dfa.pdf.
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Carroll-Davis, Lisa Marie. "Constructing a nation : evaluating the discursive creation of national community under the FSLN government in Nicaragua (1979-1990)." Thesis, University of Southampton, 2012. https://eprints.soton.ac.uk/374759/.
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This thesis aims to examine the ways in which national identity can be discursively created within a state. I consider the case of Nicaragua in the 1980s and investigate how the government of the Sandinista Front for National Liberation (FSLN) established a conception of the national in the country through official discourse. Despite various studies into the political situation of Nicaragua during this time period, little research has been done in the role of language in constructing a sense of national identification in the country, and this thesis is a contribution to addressing that gap in the research, following the examples of Ruth Wodak et al. (1999) and Nicolina Montesano Montessori (2009). I challenge the dominant Eurocentric theories on national identity as to their relevance in a Latin American context. Particularly, Anderson (2006), Smith (1991), Gellner (1983) and Hobsbawm (1990) are shown to each have partial applicability to studies of the region, but ultimately are not sufficient in themselves to fully address the unique circumstances seen in Latin America. I propose that two other elements must be included as contributing elements to national identity formation: radical Marxism and liberation theology. In analysing the data, I adopt a critically oriented discourse analysis approach as I research the strategies employed in a government led redefinition of the nation. Applying the discourse-historical approach (Wodak et al. 1999), I probe the data for particular structures aimed at creating hegemony over the discursive terrain. Through a comparison of three separate corpora composed of government publications, opposition publications and ethnographic interviews, I consider the questions of how the FSLN discursively created a sense of national community and whether and how that discourse was adopted by non-governmental actors. In answering these questions, the discourses are situated in the specific cultural, political and historical milieu of post-revolutionary Nicaragua.
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Pebley, Aaron James. "Bending stresses in stay-cables during large-amplitude vibrations a Fred Hartman Bridge case study /." Full-text Adobe Acrobat (PDF) file, 2005. http://www.engr.utexas.edu/research/fsel/FSEL_reports/Thesis/Pebley,%20Aaron.pdf.
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Tuchscherer, Robin G. "Investigation of the cracking problem of short type IV girders." Full-text Adobe Acrobat (PDF) file, 2006. http://www.engr.utexas.edu/research/fsel/FSEL_reports/Thesis/Tuchscherer,%20Robin.pdf.
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Kapitan, Jacob G. "Structural assessment of bridge piers with damage similar to alkali silica reaction and/or delayed ettringite formation." Full-text Adobe Acrobat (PDF) file, 2006. http://www.engr.utexas.edu/research/fsel/FSEL_reports/Thesis/Kapitan,%20Jacob.pdf.
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Bean, Matthew James. "Bending fatigue performance of small-scale stay cables." Full-text Adobe Acrobat (PDF) file, 2006. http://www.engr.utexas.edu/research/fsel/FSEL_reports/Thesis/Bean,%20Matthew.pdf.
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Argudo, Jaime Fernando. "Evaluation and synthesis of experimental data for autoclaved aerated concrete /." Full-text Adobe Acrobat (PDF) file, 2003. http://www.engr.utexas.edu/research/fsel/FSEL_reports/Thesis/Argudo,%20Jaime.pdf.
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Coselli, Christin Jennifer. "Behavior of bridge decks with precast panels at expansion joints /." Full-text Adobe Acrobat (PDF) file, 2004. http://www.engr.utexas.edu/research/fsel/FSEL_reports/Thesis/Coselli,%20Christin.pdf.
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Ridd, Jennifer Elizabeth. "Fatigue performance of stay cables." Full-text Adobe Acrobat (PDF) file, 2004. http://www.engr.utexas.edu/research/fsel/FSEL_reports/Thesis/Ridd,%20Jennifer.pdf.
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Costa, Bruno Alexandre Caldeira. "Conceção e dimensionamento do chassis e sistema de travagem de um veículo de competição do tipo Formula SAE." Master's thesis, Faculdade de Ciências e Tecnologia, 2014. http://hdl.handle.net/10362/12200.
Full textAbstract:
Dissertação para obtenção do Grau de Mestre em
Engenharia MecânicaA presente tese pretende contribuir para o desenvolvimento do projeto FCT Formula Student, realizado no DEMI-FCT/UNL, e tem como objetivo principal conceber dois novos chassis utilizando as regras gerais definidas pela organização Society of Automotive Engineers (SAE) e um segundo chassis, concebido de acordo com as regras alternativas da competição Formula SAE. Para a conceção dos chassis teve-se em conta estudos efetuados anteriormente, nomeadamente estudos sobre o sistema de suspensão e de transmissão. Fez-se a escolha do material a utilizar na fabricação do chassis e os processos de fabrico. Aborda-se ainda ao longo desta dissertação a conceção do sistema de travagem. Dimensionaram-se e escolheram-se os componentes do sistema, tendo sido avaliadas as temperaturas de funcionamento dos mesmos, de modo a garantir a capacidade de travagem nas condições normais de funcionamento. Utilizou-se o programa de modelação tridimensional SolidWorks para modelar e agrupar num conjunto de peças todos os componentes modelados. Para dimensionar e fazer a análise estrutural dos componentes, utilizou-se o Método dos Elementos Finitos (MEF), através do programa de simulação SolidWorks Simulation. Esta metodologia permitiu obter uma solução para o chassis, construído pelas regras gerais, com uma massa e uma rigidez torsional de 29 kg e 1126 N.m/º, respetivamente. Para o chassis, concebido de acordo com as regras alternativas da competição, obteve-se um veículo com uma massa de 38 Kg e uma rigidez torsional de 4167 N.m/º.
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Fajkus, Martin. "Úprava atmosférického motoru na motor přeplňovaný." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2011. http://www.nusl.cz/ntk/nusl-229682.
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Aim of this diploma thesis is the modification of naturally aspirated engine for Formula Student competition to turbocharged version. Modification which were made are based on the issue knowledge and calculations. The input data were obtained from 3D scanning and measurements, at the school laboratories. All 3D models were created in Pro / Engineer. Input data for the computional analysis was developed in Lotus Engine Simulation. Computational analysis was performed in ANSYS by finite element method. Calculations had to simulate a piston behavior at the critical situations where the engine is under the maxiumum load.
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Dolák, Jindřich. "Zvýšení pružnosti zážehového závodního motoru přeplňováním." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2011. http://www.nusl.cz/ntk/nusl-229713.
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Aim of this diploma thesis is the turbocharger design calculation for single cylinder SI engine for Formula Student. This thesis includes a mathematical model of the engine, which is created in the Lotus Engine Simulation. This model applies for tuning the regulation of turbocharger charging pressure. Lotus uses the turbine waste gate valve for this regulation. The results of the simulation are the charging pressure,lengths of the intake manifold and etc. These parameters ensure the optimal engine qualities. The knowlege and results of the simulations are summarized at the conclusion.
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McGregor, Jessica. "Guiding Students to Pursue French: The Guidance Counsellor’s Perspective in the Decision to Continue FSL." Thesis, Université d'Ottawa / University of Ottawa, 2016. http://hdl.handle.net/10393/35580.
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This exploratory case study investigated the role secondary school guidance counsellors believed they played in the course selection process, especially regarding the continuation of French as a second language (FSL). As new initiatives have been recently introduced to increase retention in all FSL programs throughout Ontario (OME, 2013a), this study also sought to identify the factors guidance counsellors believed contributed to students continuing (or not continuing) the study of FSL past the mandatory Grade 9 credit. The following research questions guided this study: (1) How do guidance counsellors describe the process of course selection, with regards to FSL in particular?; (2) How do guidance counsellors view their role in the course selection process?; and (3) What do guidance counsellors identify as factors that contribute to students continuing (or not continuing) the study of FSL past Grade 9? Individual semi-structured interviews were conducted with 14 guidance counsellors from 12 schools across one school board in Ontario. Analysis of the insights shared by guidance counsellors highlight the complexities of the course selection process, as well as the strategies and tools they each used to prepare students to make the most informed decisions regarding their course selection. When counselling students about continuing optional FSL courses after Grade 9, participants expressed that they would encourage the pursuit of FSL courses, if the topic was student initiated. Emerging evidence showed that core French and French immersion students were counselled differently, with the latter receiving more attention if they expressed a desire to leave the program. Finally, guidance counsellors identified a wide variety of reasons they believed affected retention and attrition rates at their schools, with the most common being for future employment purposes and not seeing the value in learning French.
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Wernicke-Heinrichs, Meike. "Authenticating "non-native speaker teacher" professional identity in French as a second language (FSL) education." Thesis, University of British Columbia, 2013. http://hdl.handle.net/2429/45145.
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This qualitative multiple case study considered language teacher identity and what it means to “be authentic” as a teacher of French. It investigated the identity construction of 87 French as a second language (FSL) teachers from British Columbia who participated in a two-week professional development sojourn to France in 2009. The study examined how participants described their experiences abroad in relation to their teaching practices in Canada, and how these accounts made evident particular understandings of cultural and linguistic authenticity. The analysis focused on the way participants’ narratives served to authenticate (Bucholtz, 2003) L2 teacher identity and how conceptions of authentic language and L2 learning and teaching represented both constraining and productive ways of “being” a certain kind of FSL teacher.
Broadly situated within a practice theory framework, FSL teacher identity was first
considered through a wide-scale analysis of data from the larger cohort of BC teachers, followed by a micro-analytic examination of individual processes of identification “performed” by seven
focal participants. The analyses highlighted the extent to which the “FSL teacher” category, grounded in a “native speaker” ideology, ultimately informed the identity constructions of each
individual teacher. The various identity positionings manifested by focal participants shed light on a complex of language ideologies relevant in discourses operating within the FSL profession
in Canada with implications for what it means to be practicing as “non-native speaker teacher” in
this context.
Given current empirical emphasis on the sociolinguistic and cultural aspects of language
learning and teaching (Firth & Wagner, 1997; Lafford, 2007), the present study answers a recent
call in applied linguistics for a more rigorous analysis of identity which moves away from the
idea of identity as a simple collection of essentialist categories (Dervin & Kramsch, 2011). It does so by foregrounding a discursive-constructionist orientation and attending to the
interactional nature of identity construction, along with a thoroughgoing consideration of
researcher reflexivity. The study makes significant contributions to applied linguistics research in
the areas of study abroad, L2 teacher development and identity, and the workings of prevalent
ideologies informing L2 language teaching and research.
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Lotto, R. S. "Dinâmica lateral:construção e validação de um modelo de simulação multicorpos de um veículo FSAE usando modelo semi-empírico de pneu/." reponame:Biblioteca Digital de Teses e Dissertações da FEI, 2014. http://sofia.fei.edu.br:8080/pergamumweb/vinculos/00000d/00000d19.pdf.
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Pluta, Silvia [Verfasser], and Ute [Akademischer Betreuer] Mackenstedt. "Epidemiologie von Coxiella burnetii, Rickettsia spp., FSME- und Hantaviren in Süddeutschland unter Berücksichtigung klimatischer Veränderungen / Silvia Pluta. Betreuer: Ute Mackenstedt." Hohenheim : Kommunikations-, Informations- und Medienzentrum der Universität Hohenheim, 2011. http://d-nb.info/1027292275/34.
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ALFORD, DANIEL ABE. "LIGHTWEIGHT, LOW COST, AUTOMOTIVE DATA ACQUISITION AND TELEMETRY SYSTEM." University of Cincinnati / OhioLINK, 2005. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1109205407.
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Roberts, Matthew Lowell. "Development of a Finite Element Model for Predicting the Impact Energy Absorbing Performance of a Composite Structure." DigitalCommons@CalPoly, 2014. https://digitalcommons.calpoly.edu/theses/1272.
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Because of their high strength-to-weight ratio, Fiber Reinforced Composite (FRC) materials are well suited for use in high performance racing applications where weight must be kept to a minimum. Formula SAE (FSAE) race cars are designed and built by college students, roughly following the model of a scaled down Formula One car. Strict regulations are placed on specific components of the car in the interest of equalizing competition and ensuring the safety of the drivers. Students are required to construct a survival cell (the chassis), which can resist large amounts of energy in the event of a crash, with an energy absorbing device at the front of the vehicle. The nose cone of the Cal Poly FSAE car is constructed as a carbon fiber shell designed to act as this sacrificial energy absorbing device. One difficulty associated with using FRC materials is that the anisotropic properties can lead to a variety of complex failure modes such as buckling, delamination, matrix cracking, and fiber breakage, all of which absorb different amounts of energy. In order to accurately predict the behavior of the nose cone so that it meets the requirements set forth by SAE, an initial finite element model has been constructed. This model uses the test results from another paper to construct an explicit non-linear dynamic analysis in Abaqus which simulates the axial crushing of a thin walled composite tube between two rigid plates. The modeling techniques discussed in this paper will be used as the basis for a future thesis dedicated to designing the nose cone for the Cal Poly FSAE car.
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Maclaren, Julian Roscoe. "Motion Detection and Correction in Magnetic Resonance Imaging." Thesis, University of Canterbury. Electrical and Computer Engineering, 2007. http://hdl.handle.net/10092/1220.
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Magnetic resonance imaging (MRI) is a non-invasive technique used to produce high-quality images of the interior of the human body. Compared to other imaging modalities, however, MRI requires a relatively long data acquisition time to form an image. Patients often have difficulty staying still during this period. This is problematic as motion produces artifacts in the image. This thesis explores the methods of imaging a moving object using MRI. Testing is performed using simulations, a moving phantom, and human subjects. Several strategies developed to avoid motion artifact problems are presented. Emphasis is placed on techniques that provide motion correction without penalty in terms of acquisition time. The most significant contribution presented is the development and assessment of the 'TRELLIS' pulse sequence and reconstruction algorithm. TRELLIS is a unique approach to motion correction in MRI. Orthogonal overlapping strips fill k-space and phase-encode and frequency-encode directions are alternated such that the frequency-encode direction always runs lengthwise along each strip. The overlap between pairs of orthogonal strips is used for signal averaging and to produce a system of equations that, when solved, quantifies the rotational and translational motion of the object. Acquired data is then corrected using this motion estimation. The advantage of TRELLIS over existing techniques is that k-space is sampled uniformly and all collected data is used for both motion detection and image reconstruction. This thesis presents a number of other contributions: a proposed means of motion correction using parallel imaging; an extension to the phase-correlation method for determining displacement between two objects; a metric to quantify the level of motion artifacts; a moving phantom; a physical version of the ubiquitous Shepp-Logan head phantom; a motion resistant data acquisition technique; and a means of correcting for T2 blurring artifacts.
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Priego, Sabrina. "AN E-MAIL TANDEM LEARNING PROJECT INVOLVING ESL AND FSL SECONDARY SCHOOL STUDENTS: A SOCIOCULTURAL PERSPECTIVE." Doctoral thesis, Université Laval, 2007. http://www.theses.ulaval.ca/2007/24863/24863.pdf.
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Thèse (Ph.D.)--Université Laval, 2007.Comprend un résumé en anglais et en français. Bibliogr.: f. 335-351. Publié aussi en version électronique dans la Collection Mémoires et thèses électroniques.