Relevant bibliographies by topics / FTfe

Academic literature on the topic 'FTfe'

Author: Grafiati
Published: 9 March 2023
Last updated: 10 March 2023

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Contents

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'FTfe.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "FTfe"

1

Mokhtari, Somayeh, Fereshteh Aein, Reza Masoudi, Mohammad Heidari, and Fatemeh Drees. "Comparing the effects of face-to-face and virtual education on nursing students’ communication skills." Journal of Multidisciplinary Care 10, no. 4 (December 30, 2021): 132–38. http://dx.doi.org/10.34172/jmdc.2021.26.

Full text
Abstract:
Background and aims: The quality of nurse-patient communication has significant effects on patient care outcomes. Therefore, education of communication skills (CSs) to nurses and nursing students can improve patient care outcomes. The aim of this study was to compare the effects of face-to-face education (FTFE) and virtual education (VE) on CSs among nursing students. Methods: This quasi-experimental study was conducted in 2021. Participants were 51 senior nursing students in their internship course in Shahrekord Faculty of Nursing and Midwifery, Shahrekord, Iran. They were recruited to the study through a census and were allocated to FTFE and VE groups through the Random Allocation Software. FTFE was provided in two sessions through the lecture and the question and answer methods, while VE was provided in a single online session through simulated multimedia content. Participants’ CSs were assessed before and ten days after the study intervention through a 50-minute Objective Structured Clinical Examination with five consecutive stations on communication with elderly patient, communication with adolescent patient, communication with aggressive patient, communication with illiterate or non-communicative patient, and communication for consent. Data were analyzed using the SPSS software (v. 23.0) and through the independent sample t, paired-sample t, and chi-square tests and the multivariate analysis of variance (MANOVA). Results: The posttest mean scores of CSs in both groups were significantly greater than their corresponding pretest values (P<0.05). However, there were no significant differences between the groups respecting the pretest and the posttest mean scores of CSs. The pretest mean score of the communication with elderly patient skill and the posttest mean score of the communication with aggressive patient skill had significant relationship with participants’ place of residence and gender, respectively (P<0.05). Conclusion: VE is as effective as FTFE in significantly improving nursing students’ CSs. Therefore, quality VE programs are recommended to fulfill the different educational needs of nursing students.
APA, Harvard, Vancouver, ISO, and other styles
2

Casado-del Castillo, Virginia, Ernesto P. Benito, and José María Díaz-Mínguez. "The Role of the Fusarium oxysporum FTF2 Transcription Factor in Host Colonization and Virulence in Common Bean Plants (Phaseolus vulgaris L.)." Pathogens 12, no. 3 (February 26, 2023): 380. http://dx.doi.org/10.3390/pathogens12030380.

Full text
Abstract:
The FTF (Fusarium Transcription Factor) gene family is composed of two members (FTF1 and FTF2) with high-sequence homology that encode transcription factors involved in the modulation of virulence in the F. oxysporum species complex (FOSC). While FTF1 is a multicopy gene exclusive of highly virulent strains of FOSC and is located in the accessory genome, FTF2 is a single-copy gene, located in the core genome, and well-conserved in all filamentous ascomycete fungi, except yeast. The involvement of FTF1 in the colonization of the vascular system and regulation of the expression of SIX effectors has been stablished. To address the role of FTF2, we generated and characterized mutants defective in FTF2 in a F. oxysporum f. sp. phaseoli weakly virulent strain and analyzed them together with the equivalent mutants formerly obtained in a highly virulent strain. The results obtained highlight a role for FTF2 as a negative regulator of the production of macroconidia and demonstrate that it is required for full virulence and the positive regulation of SIX effectors. In addition, gene expression analyses provided compelling evidence that FTF2 is involved in the regulation of hydrophobins likely required for plant colonization.
APA, Harvard, Vancouver, ISO, and other styles
3

González Gutiérrez, Miguel Ángel, Olga León Alava, Alvaro Fuentes Olea, Ana Serrano Imedio, and Tomás Gallego Izquierdo. "Relación entre el dolor lumbar y el acortamiento isquiotibial. Estudio de casos y controles." European Journal of Podiatry / Revista Europea de Podología 5, no. 1 (January 18, 2019): 7–13. http://dx.doi.org/10.17979/ejpod.2019.5.1.4360.

Full text
Abstract:
Objetivos: Este estudio busca establecer una relación directa entre el dolor lumbar de origen inespecífico y el acortamiento de la musculatura isquiotibial mediante la prueba dedos suelo (Finger-to-floor). Material y métodos: En el presente estudio participaron 54 sujetos: 27 casos y 27 controles (41 mujeres y 13 hombres). Resultados: No se ha encontrado relación entre los casos y los controles en las variables Finger-To-Floor test 1 (FTF1) (rP= 0.079; P>0.570), Finger-To-Floor test 2 (FTF2) (rP= 0.000; p>0.998), Finger-To-Floor test 3 (FTF3) (rP= 0.075;p>0.588) y Finger-To-Floor test total (FTFtotal) (-0.006 (-5.23,5.11);p>0.981). Conclusión: No se encontraron diferencias estadísticamente significativas entre ambos grupos y las respectivas variables.
APA, Harvard, Vancouver, ISO, and other styles
4

Dahlin, Christer, Massimo Simion, Ulf Nanmark, and Lars Sennerby. "Histological morphology of the e-FTFE/tissue interface in humans subjected to guided bone regeneration in conjunction with oral implant treatment." Clinical Oral Implants Research 9, no. 2 (April 1998): 100–106. http://dx.doi.org/10.1034/j.1600-0501.1998.090205.x.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Zhou, Mingxiang, and Xiaoyan Zheng. "Evaluation of the Development of Fintech-Served Real Economy Based on Fintech Improvement." Discrete Dynamics in Nature and Society 2021 (November 26, 2021): 1–10. http://dx.doi.org/10.1155/2021/4836933.

Full text
Abstract:
The new generation of information technology (IT) promotes the integration of fintech with the real economy. Existing studies emphasize the relationship between fintech and the real economy over the development level of fintech-served real economy (FtRE). To fill up the gap, this paper explores the evaluation of FtRE based on fintech improvement (FtI). Firstly, an evaluation index system (EIS) was established for fintech service efficiency (FtSE), and FtSE was measured through data envelopment analysis (DEA). Then, fuzzy c-means (FCM) clustering was performed to discretize continuous indices. Drawing on matter-element theories, the authors created the classic domain and node domain of FtRE, as well as the evaluation objects of real economy, calculated the correlation between each factor affecting development level and evaluated development level, and computed the weight coefficient of each index. Finally, the influence of FtI-based FtRE development was empirically analyzed through experiments.
APA, Harvard, Vancouver, ISO, and other styles
6

Mehra, Tanya. "icct Report, December 2016: Foreign Terrorist Fighters." Security and Human Rights 27, no. 1-2 (July 13, 2016): 148–86. http://dx.doi.org/10.1163/18750230-02701015.

Full text
Abstract:
This article is based on a paper which was developed for the Global Counterterrorism Forum’s Foreign Terrorist Fighters (ftf) Working Group. It takes stock of the current trends and dynamics related to the ftf phenomenon and identifies some of the gaps that still need to be addressed. The distinction between home-grown terrorists and (returning) ftfs is fading, the difference between isil/Da’esh inspired or directed terrorist attacks is becoming more fluid and the nexus between terrorism and crime is more prominent, which clearly indicates that terrorism can manifest itself in many different ways. The involvement of returning ftfs in some terrorist attacks is a stark reminder of the potential threat returning ftfs pose. The data also indicates a demographic change with a more prominent role of female ftfs and children being recruited and used in hostilities or involved in terrorist attacks. The current trends underline the need for a comprehensive, tailored and multidisciplinary approach including the involvement of stakeholders at the local level to adequately address the evolving aspects of the ftf phenomenon. This paper provides a short overview of policy responses which can broadly be grouped into preventive, criminal, administrative and rehabilitative measures. The ftf related responses could have several human rights implications and states are encouraged to develop a comprehensive approach to address the ftf phenomenon in full respect of human rights.
APA, Harvard, Vancouver, ISO, and other styles
7

Scoletta, Edoardo, and Wolfgang Polifke. "Impact of stretch on the flame dynamics of laminar premixed flames." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 265, no. 1 (February 1, 2023): 6277–85. http://dx.doi.org/10.3397/in_2022_0933.

Full text
Abstract:
Flame transfer functions (FTF) of laminar premixed flames acoustically forced are analytically investigated and modelled. The study is based on the linearized G-equation, which is used to kinematically track the flame front. In order to incorporate combustion properties, the laminar consumption speed is considered varying depending on the flame front stretch. Once written in dimensionless form, the G-equation reveals that the FTF depends on 3 dimensionless parameters: a Strouhal number (St2) that accounts for the convective time of the flow perturbation along the flame-front, the flame aspect-ratio (Lf/R) and the dimensionless Markstein length, adimensionalized by the injector radius. It is shown that the latter term is responsible for a flame-flow feedback that acts as damper or amplifier of the flame perturbation, respectively for thermodiffusively stable or unstable flames. A LOM FTF is derived both for Conical and V-flames, highlighting the impact of stretch for each configuration. Ultimately the obtained FTFs are compared to previously proposed analytical FTFs from the literature, underlining the importance of stretch at high frequency.
APA, Harvard, Vancouver, ISO, and other styles
8

Hanna, Florensia Stevany. "SYRIA’S DEFENSE AND SECURITY POLICY IN ADDRESSING THE ISSUE OF FOREIGN TERRORIST FIGHTERS (PERIOD 2011-2016)." Sociae Polites 19, no. 2 (December 20, 2018): 92–104. http://dx.doi.org/10.33541/sp.v19i2.1647.

Full text
Abstract:
The researcher is interested in researching the phenomenon of Foreign Terrorist Fighters (FTF) more in-depth. Why is Syria became the main objective of these terrorist fighters because the issue of FTF in Syria is still rare to get researched? The study aims to analyze the phenomenon of Foreign Terrorist Fighters why go to Syria and how the Syrian government’s response to this issue. This study uses FTF theory or concept to explain the FTF phenomenon, also defense and security policy to explain what procedure is used by Bashar al-Assad in the handling of FTF issues. What will be discussed in this research is on the implementation of Syria’s defense and security policy in handling the issue of Foreign Terrorist Fighters, as well as how it impacts on Syria’s security itself. The results of this study suggest that the Syrian government has had a positive impact in implementing its policy for Syria’s protection. The most significant is the reduced number of FTFs coming to Syria. The success of recaptured cities controlled by the previous FTF and more territorial supervision tightened.
APA, Harvard, Vancouver, ISO, and other styles
9

Bergeron, Lori J., Evangelia Morou-Bermudez, and Robert A. Burne. "Characterization of the Fructosyltransferase Gene of Actinomyces naeslundii WVU45." Journal of Bacteriology 182, no. 13 (July 1, 2000): 3649–54. http://dx.doi.org/10.1128/jb.182.13.3649-3654.2000.

Full text
Abstract:
ABSTRACT Oral actinomycetes produce fructosyltransferase (FTF) enzymes which convert sucrose into polymers of d-fructose, known as levans, and these polymers are thought to contribute to the persistence and virulence of the organisms. A gene encoding FTF was isolated fromActinomyces naeslundii WVU45; the deduced amino acid sequence showed significant similarity to known levansucrases of gram-negative environmental isolates but was less similar to FTFs from gram-positive bacteria. A transcriptional start site was mapped by primer extension 70 bp 5′ from the putative start codon. Promoter fusions to a chloramphenicol acetyltransferase gene were used to confirm that there was a functional promoter driving ftfexpression and to show that sequences located 86 to 218 bp upstream of the transcription initiation site were required for optimalftf expression. Quantitative slot blot analysis against total RNA from cells grown on different sugars or from different growth phases revealed that ftf was constitutively transcribed. Thus, the A. naeslundii FTF is more similar in primary sequence and the regulation of expression to levansucrases of gram-negative bacteria than gram-positive bacteria.
APA, Harvard, Vancouver, ISO, and other styles
10

Rogers, Bryan L., Laura T. Madden, Leah K. Grubb, and Joy H. Karriker. "Shouting across the digital divide: the import of social interactions in virtual teams." Team Performance Management: An International Journal 27, no. 1/2 (February 8, 2021): 1–14. http://dx.doi.org/10.1108/tpm-05-2020-0042.

Full text
Abstract:
Purpose The purpose of this study is to extend the current understanding of virtual team (VT) workers’ willingness to continue working in VTs and the forces driving their affective reactions to teamwork. Specifically, this paper applies the input-mediator-output-input (IMOI) literature to investigate the influence of workers’ perceptions of their peers’ skills and peers’ interactions on perceptions of the teamwork process and subsequent affective reactions. Design/methodology/approach This paper draws on a sample of 997 virtual and face-to-face (FtF) students embedded in 242 project teams to test the hypotheses using multi-group comparisons in structural equation modeling (SEM). Findings Results support the assertion that team processes are essential in translating team skills and interactions into satisfaction with the team. Further, this paper finds that skills are more influential on teammate satisfaction for FtFs than they are for VTs; and, conversely, that VTs’ interactions are more pivotal regarding teammate satisfaction through VT processes than they are in FtFs. Research limitations/implications The effort contributes to the IMOI literature by showing how teams overcome virtuality to perform effectively and how team-embedded members react differently across VT and FtF contexts. Originality/value These findings are particularly notable given that prior research has suggested VT performance may not be contingent on social bonds within the team. Although this is possibly true for performance, the findings suggest that social interactions are, in fact, crucial to teams’ affective reactions.
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "FTfe"

1

MANGIAGALLI, LUCA. "Integrated readout systems for particle detectors." Doctoral thesis, Università degli Studi di Milano-Bicocca, 2020. http://hdl.handle.net/10281/261933.

Full text
Abstract:
La crescente necessità di detector ad alto rate nei moderni esperimenti di Fisica delle Alte Energie genera molte sfide tecnologiche. In particolare, gli sviluppi nella tecnologia dei detector ha aumentato i requisiti sui sistemi di readout e stimolato la ricerca su sistemi integrati di readout. I circuiti integrati CMOS sono largamente diffusi e sono una scelta comune per i chip di readout. In questa tesi vengono analizzati alcune delle maggiorni criticità nel readout di detectors mentre vengono riportati nuovi risultati sperimentali riguardanti prototipi esistenti. Viene inoltre presentato un nuovo sistema di reaout che sfrutta una nuova tecnica di signal processing a doppia soglia. La prima parte di questa tesi presenta risultati sperimentali ottenuti con il chip GEMINI, un chip di readout per rivelatori Triple-GEM fabbricato in CMOS 180 nm. Dopo una analisi delle maggiori sfige nel readout di questi detector, vengono presentati i risultati ottenuti dalla caratterizzazione del chip. Vengono inoltre riportati i risultati di test on detector descrivendo le metodologie sviluppate per questo sistema. Inoltre, vengono presentati i risultati di un test di irraggiamento di GEMINI, con una analisi degli effetti di TID sulla performance di Time ove Threshold. La seconda parte di questa tesi presenta un nuovo chip di readout, FTfe, sviluppato specificamente per camere a muoni, sfruttando il know-how acquisito dalle attività sperimentali su GEMINI. Dopo un analisi teorica della tecnica di signal processing proposta, viene presentata in dettaglio l'implementazione del sistema. Infine vengono presentati i risultati da simulazioni a livello transistor.
Increasing demand for high rate detectors in modern High Energy Physics experiments is generating many technological challenges. In particular, developments in particle detector technology increased requirements on electronic readout systems and fostered research on integrated readout systems. As a widely used technology, CMOS integrated circuits are a common choice for readout chip. In this thesis some of the major challenges in detector readout are analyzed while reporting novel experimental results on an existent prototype. A new readout system, exploiting a new double threshold signal processing technique, is also presented. The first part of this thesis presents experimental results obtained with GEMINI chip, a readout chip for Triple-GEM detectors fabricated in CMOS 180 nm. After an analysis of major challenges in Triple-GEM readout, results from chip characterization are presented. On detector tests are also reported describing methodologies developed specifically for this system. Furthermore, results from an irradiation test of GEMINI are presented, with an analysis of TID effects on Time-over-Threshold performance. The second part of this thesis presents a new readout chip, FTfe, designed in CMOS 65 nm process. This readout system has been specifically designed for Muon Drift Chambers taking advantage of the know-how acquired during experimental work on GEMINI. After a theoretical analysis of the signal processing technique proposed, the implementation of FTfe is presented in detail. Results from transistor level simulations are eventually presented.
APA, Harvard, Vancouver, ISO, and other styles
2

Garrett, Ian. "The pricing relationship between the FTSE 100 stock index and FTSE 100 stock index futures contract." Thesis, Brunel University, 1992. http://bura.brunel.ac.uk/handle/2438/5283.

Full text
Abstract:
This thesis investigates the pricing relationship between the FTSE 100 Stock Index and the FTSE 100 Stock Index futures market. We develop and apply a framework in which it is possible to evaluate whether or not markets can be said to function effectively and efficiently. The framework is applied to both the daily and intra-daily pricing relationship between the aforementioned markets. In order to analyse the pricing relationship within days, we develop a new method to remove the effects of nonsynchronous trading from the FTSE 100 Index. We find that on a daily basis the markets generally function effectively, although this does not carryover to the intra-daily pricing relationship. This is especially true during the October 1987 stock market crash, where it is argued that a possible cause of the breakdown lies with the stock market. If this is the case, then any regulation should be aimed at the stock market, not the stock index futures market.
APA, Harvard, Vancouver, ISO, and other styles
3

Butterworth, Darren David. "Issues in stock index futures trading : evidence for the FTSE-100 and FTSE-mid 250 contacts." Thesis, Durham University, 1998. http://etheses.dur.ac.uk/5027/.

Full text
Abstract:
This thesis provides a detailed empirical evaluation of the role and function of the FTSE 100 and FTSE Mid 250 index futures contracts, by considering the interrelated issues of hedging effectiveness and pricing efficiency. The aims of the thesis are outlined in chapter one, with chapter two providing a detailed review of the empirical literature relevant to this study. Chapter three investigates the hedging effectiveness of the FTSE 100 and FTSE Mid 250 index futures contracts in both an ex post and ex ante context. Despite relatively thin trading volume, the FTSE Mid 250 contract is shown to be an important hedging instrument. However, the results demonstrate the hedging effectiveness can only truly be examined by using an ex ante strategy in conjunction with spot portfolios that do not replicate market portfolios. Work into hedging effectiveness is further examined in chapter four using hedge ratios generated within the Extended Mean Gini framework. The results indicate that for both contracts the hedge ratio series are characterised by a step function which is strongly related to the hedger's degree of risk aversion. Chapter five examines the pricing efficiency of the FTSE 100 and Mid 250 contracts. While there were many deviations from fair value, both contracts appear to be quite efficiently priced, with opportunity for index arbitrage rare. Research into the economics of arbitrage is extended in chapter six by investigating the potential for intramarket and intermarket spread trading. While the intramarket spread is found to be very efficiently priced, trading well within its no-arbitrage limits, the intermarket is much less efficiently priced frequently violating its no-arbitrage limits. Chapter seven, provides a summary of the thesis and concluding remarks concerning the relevance of the issues investigated are drawn.
APA, Harvard, Vancouver, ISO, and other styles
4

Sebastiao, Helder Miguel Correia Virtuoso. "Price discovery in the FTSE 100 index and FTSE 100 futures contract : the impact of electronic trading systems." Thesis, Lancaster University, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.445482.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Nixon, Ian Michael. "The automatic synthesis of fault tolerant and fault secure VLSI systems." Thesis, University of Edinburgh, 1988. http://hdl.handle.net/1842/6637.

Full text
Abstract:
This thesis investigates the design of fault tolerant and fault secure (FTFS) systems within the framework of silicon compilation. Automatic design modification is used to introduce FTFS characteristics into a design. A taxonomy of FTFS techniques is introduced and is used to identify a number of features which an "automatic design for FTFS" system should exhibit. A silicon compilation system, Chip Churn 2 (CC2), has been implemented and has been used to demonstrate the feasibility of automatic design of FTFS systems. The CC2 system provides a design language, simulation facilities and a back-end able to produce CMOS VLSI designs. A number of FTFS design methods have been implemented within the CC2 environment; these methods range from triple modular redundancy to concurrent parity code checking. The FTFS design methods can be applied automatically to general designs in order to realise them as FTFS systems. A number of example designs are presented; these are used to illustrate the FTFS modification techniques which have been implemented. Area results for CMOS devices are presented; this allows the modification methods to be compared. A number of problems arising from the methods are highlighted and some solutions suggested.
APA, Harvard, Vancouver, ISO, and other styles
6

Kalogeropoulou, Joanna. "Arbitrage in the FTSE 100 index futures." Thesis, Brunel University, 1998. http://bura.brunel.ac.uk/handle/2438/5396.

Full text
Abstract:
This thesis presents five empirical papers investigating the issue of arbitrage trading of the FTSE 100 stock index futures. The first paper explores the effects of nonsynchronous trading on the spot index and develops a new technique as well as improving current methodologies for removing them. Studies in U. S. have shown that if the problem of non-synchronous trading is severe, the reported spot index is not reliable affecting the correct pricing of futures contracts. The second paper investigates the elasticity of supply of arbitrage in the futures market and the ability of the spot and the futures markets to respond to new information. It shows that arbitrage trading is initiated when spot prices largely drift apart from the futures prices. In addition, the futures prices tend to uncover new information before the spot prices, although this relationship is not stable over time. The analysis incorporates all possible channels of information to the -markets, which previous research fails to consider. The third paper analyses the behaviour of the deviation of the actual futures price from its theoretical value. Although this deviation is seen to have decreased its size over the years, it is still significant and persistent. Furthermore, it cannot be explained by the tax-timing option on pricing the futures or the effects of nonsynchronous trading. The fourth paper examines the presence, size and frequency of the profitability of the observed arbitrage opportunities by applying different transactions costs bounds to account for different classes of traders. After applying trading simulations arbitrage profitability is found to be frequent and significant, despite the fact that its size has decreased over the years. Finally, the thesis concludes with the fifth empirical paper which investigates the impact of futures trading on the spot and futures market volatility. It finds that arbitrage increases spot and futures price volatility but a volatile market brings the two markets closer on the whole, the thesis shows that although profitable arbitrage opportunities are not present in the long-run, they are not quickly removed in the short-run, allowing the spot and futures prices to drift apart.
APA, Harvard, Vancouver, ISO, and other styles
7

Areal, Nelson Manuel de Pinho Brandão da Costa. "Essays on FTSE-100 volatility and options valuation." Thesis, Lancaster University, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.440390.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Bender, Ruth. "The determination of directors' remuneration in selected FTSE 350 companies." Thesis, University of Warwick, 2004. http://wrap.warwick.ac.uk/1206/.

Full text
Abstract:
This thesis has adopted a qualitative approach to research into executive remuneration, to look inside the 'black box' of process. Executives, nonexecutives and others involved in the remuneration-setting process were interviewed in order to establish how executive remuneration is determined. In all, 40 interviews were conducted, covering 12 FTSE 350 companies plus other stakeholder bodies. The interviews yielded rich data illuminating the processes followed by the companies, and highlighting their similarities and differences. These data were considered in the light of existing economic, social-psychological and organisational theory approaches,n one of which proved sufficient, either alone or in combination, to explain what was happening. Companies determine the level of their executive pay based on their interpretation of 'the market', but the research shows that such a market is a construct that does not exist independently. They determine the structure of their executive pay based mainly on structures successfully adopted by other companies, and those considered acceptable to the investing institutions and regulators. Institutional theory explanations and the need for legitimacy are clearly seen in the data. A further finding of the research was that all of the companies had made changes to their remuneration schemes, some major. The various reasons for these changes included changes (actual or desired) to the corporate environment, changes to key personnel, and, notably, the need to increase pay packages that were 'below-market'. Incentive schemes that did not pay out were also changed. Finally, as regards process, it was clear that each of the case companies followed 'good governance' practices. It was also clear that each did this in a different way. For some, the process was managed by the non-executives; in others the executives had a leading role. The relationships between the protagonists had an important impact on the resultant governance processes.
APA, Harvard, Vancouver, ISO, and other styles
9

El-Sayed, Nader Mahmoud. "An examination of executive directors' remuneration in FTSE 350 companies." Thesis, University of Exeter, 2013. http://hdl.handle.net/10871/14025.

Full text
Abstract:
Issues as to the suitability of executive compensation packages have obtained an ever increasing profile in recent years. Whilst there has been quite extensive empirical investigation of pay-performance sensitivity, the framework of performance-pay has received less attention in the literature and examination to date. Besides this - whilst there has been a quantum of investigation of relationships between compensation and performance, there has been less focus on case study based analysis. In this context, the current study makes a twofold contribution to the examination of executive directors’ remuneration in FTSE 350 companies. First, this research aims to empirically investigate linkages between the nature and amount of compensation packages and company performance with a particular focus on examining the extent of interrelationships between pay and performance over a ten year period from 1999 to 2008. Within the scope of a variety of theoretical perspectives, this deductive study puts a focus on addressing the question of whether managerial compensation is the greater influence on firm performance or whether it is the latter which has the greater influence on the former. Second, this study seeks to qualitatively add to the relevant literature by means of a longitudinal case study of remuneration at UK based major multi-national company, BP, over a ten year period from 2001 till 2010. Within the context of a variety of theoretical and institutional perspectives, this inductive study explores, by means of investigation of BP’s Directors Remuneration Reports, the role of the BP remuneration committee in setting the mechanisms and structures which determine the nature and extent of executive remuneration packages at BP and considers the wider generalisability of the findings therefrom. Overall the current study utilises a mixed methods approach via a combination both quantitative and qualitative modes of analysis – an approach which is relatively rare in the discipline of research into corporate governance and related issues. The outcomes from the empirical work show evidence of the presence of dual positive associations between executive compensation and company performance. However, the results do indicate that executive compensation is more influential in its effect on firm performance than the framework of performance-related pay. This finding is interpreted as lending support to the stewardship and/or tournament theories as to underlying drivers of executive remuneration in comparison with agency theory, represented by agent-principal or managerial hegemony perspectives, as an explanatory of the construction of executive remuneration and the link with firm performance. Similar to prior literature, the empirical findings indicate that equity-based compensation is more robust in the linkage with firm performance than cash pay dominated packages. However, the results showed that the existence of remuneration committees in general reveals insignificant and negatively related to total CEO/executive remuneration. This finding highlights therefore the need to put a focus on the actual role of compensation committee in setting the type and extent of executive pay packages in a large UK company. The outcomes from the archival case study also suggest that it is difficult to find significant support for a pure agency theory approach whereby shareholders seek to align their interests directly with those of their managers as a driver of executive compensation packages. There is more evidence suggestive of a managerial power/hegemony perspective which is heavily mediated by the presence of powerful non-executive directors and the institutional presence of the remuneration committee. Perhaps the most significant aspects to emerge from the case study are the importance of personal relationships and power at boardroom level. Beyond this the inferences of the supplementary content analysis conducted specifically on the Directors Remuneration Reports are suggestive of a focus on overall BP performance rather than on the specific activities and achievements of individual executive directors. In conclusion, the findings of the present study provide a wealth of detail both quantitative and qualitative as to the manner in which executive remuneration has been set in the UK in recent years and as to linkages both with corporate performance and underlying theories of the determinants of executive remuneration. As such it sheds light on an area of importance and one of continued private and public concern and may be of interest to those responsible for governance within firms and to wider public and regulatory interest as well as future researchers in the field.
APA, Harvard, Vancouver, ISO, and other styles
10

Melo, Augusto Flores Pinto de. "Modelo de optimização a um factor: aplicação ao FTSE-100." Master's thesis, Universidade de Évora, 2019. http://hdl.handle.net/10174/24762.

Full text
Abstract:
O objectivo da presente dissertação é comparar o desempenho de uma carteira, composta por acções que compõem o FTSE100, do modelo de optimização a um factor com o desempenho do próprio índice FTSE-100 no período compreendido entre 2010-2017. A gestão de carteiras permite estabelecer uma relação de risco e rendibilidade, procurando desta forma e através de técnicas que têm sido estudadas e desenvolvidas por diversos investigadores de forma a optimizar os recursos disponíveis, dado que estes apresentam uma aversão ao risco. A metodologia utilizada consistiu em avaliar os resultados obtidos com recurso ao modelo de Elton, Gruber and Padberg (1976), através da optimização da carteira no período analisado, verificou-se que existiam diversas empresas a integrarem a carteira óptima, conseguindo desta forma obter uma carteira bastante diversificada. De forma a aferir a significância estatística realizaram-se os testes de Kolmogorov-Smirnov e Kruskal-Wallis. Da realização destes testes conclui-se que a utilização do modelo de Elton et al (1976) permite obter retornos superiores do que quando aplicado no FTSE-100; ONE FACTOR OPTIMIZATION MODEL: APPLICATION TO THE FTSE-100 Abstract: The objective of this dissertation is to compare the performance of a portfolio, comprising the FTSE100 shares, from the optimization model of a one factor with the performance of the FTSE-100 index, in the period 2010-2017. Portfolio management makes it possible to establish a risk and profitability relationship, looking in this way and through techniques that have been studied and developed by several researchers in order to optimize the available resources, since these have a risk aversion. The methodology used was to evaluate the results obtained using the model of de Elton et al (1976), through the optimization of the portfolio in the analyzed period, it was found that there were several companies to integrate the optimal portfolio, achieving this way to get a fairly diversified portfolio. In order to assess the statistical significance, the Kolmogorov-Smirnov and Kruskal-Wallis tests were performed. These results show that the use of the de Elton et almodel (1976) allows higher returns than when applied in the FTSE-100
APA, Harvard, Vancouver, ISO, and other styles
More sources

Books on the topic "FTfe"

1

McCune, Sandra K. CliffsTestPrep FTCE. New York: John Wiley & Sons, Ltd., 2007.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
2

Kaplan, Jeffrey S. CliffsTestPrep FTCE. New York: John Wiley & Sons, Ltd., 2005.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
3

FTCE professional education. 3rd ed. Boston, Mass: XAMonline Inc, 2013.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
4

FTCE general knowledge. 3rd ed. Boston: XAMonline, Inc., 2010.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
5

Association, Research and Education, ed. FTCE: General knowledge. 2nd ed. Piscataway, N.J: Research & Education Assoc., 2011.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
6

FTCE general knowledge. 5th ed. Boston: XAMonline, Inc., 2014.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
7

FTCE: General knowledge. Boston: XAMonline, Inc., 2015.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
8

FTCE Physics 6-12. Cambridge: XAMonline, 2009.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
9

Cain, Alexander Vi, ed. FTCE: Professional education test. Hoboken, NJ: Wiley Pub., 2007.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
10

FTCE Chemistry 6-12. Cambridge: XAMonline, 2009.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Book chapters on the topic "FTfe"

1

Kuntman, Hakan, and Deniz Özenli. "FTFN: Four-Terminal Floating Nullor." In Analog Circuits and Signal Processing, 119–41. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-96836-6_5.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Fuchs, Raphael, Benjamin Schindler, and Ronald Peikert. "Scale-Space Approaches to FTLE Ridges." In Mathematics and Visualization, 283–96. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-23175-9_19.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Stoop, Ineke, and Eric Harrison. "Repeated Cross-Sectional Surveys Using FTF." In Handbook of Survey Methodology for the Social Sciences, 249–76. New York, NY: Springer New York, 2012. http://dx.doi.org/10.1007/978-1-4614-3876-2_15.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Xi, YanHui, and LiangYu Peng. "Design of Multilphase Sinusoidal Oscillator Based on FTFN." In Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, 1929–34. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-02469-6_69.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Labuschagne, Coenraad C. A., Niel Oberholzer, and Pierre J. Venter. "A Vector Error Correction Model (VECM) of FTSE/JSE SA Listed Property Index and FTSE/JSE SA Capped Property Index." In Advances in Panel Data Analysis in Applied Economic Research, 95–111. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-70055-7_8.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Kruschwitz, Lutz, and Andreas Löffler. "Corporate Income Tax: WACC, FTE, TCF, APV." In Springer Texts in Business and Economics, 47–140. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-37081-7_3.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Kuznetsova, M. M., and L. M. Zelenyi. "The theory of FTE stochastic percolation model." In Physics of Magnetic Flux Ropes, 473–87. Washington, D. C.: American Geophysical Union, 1990. http://dx.doi.org/10.1029/gm058p0473.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Pobitzer, Armin, Ronald Peikert, Raphael Fuchs, Holger Theisel, and Helwig Hauser. "Filtering of FTLE for Visualizing Spatial Separation in Unsteady 3D Flow." In Mathematics and Visualization, 237–53. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-23175-9_16.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Schneider, Dominic, Jan Fuhrmann, Wieland Reich, and Gerik Scheuermann. "A Variance Based FTLE-Like Method for Unsteady Uncertain Vector Fields." In Mathematics and Visualization, 255–68. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-23175-9_17.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Bettscheider, Patrick R. "Empirische Untersuchung der Merkmale von Indexaktien am Beispiel des FTSE-100." In Indexveränderungen und ihre Auswirkungen auf Kapitalmärkte und Unternehmen, 107–203. Wiesbaden: Deutscher Universitätsverlag, 2003. http://dx.doi.org/10.1007/978-3-322-81108-0_4.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "FTfe"

1

Tay-Wo-Chong, Luis, Sebastian Bomberg, Ahtsham Ulhaq, Thomas Komarek, and Wolfgang Polifke. "Comparative Validation Study on Identification of Premixed Flame Transfer Function." In ASME 2011 Turbo Expo: Turbine Technical Conference and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/gt2011-46342.

Full text
Abstract:
The flame transfer function (FTF) of a premixed swirl burner was identified from time series generated with CFD simulation of compressible, turbulent, reacting flow at non-adiabatic conditions. Results were validated against experimental data. For large eddy simulation (LES), the Dynamically Thickened Flame combustion model with one step kinetics was used. For unsteady simulation in a Reynolds-averaged Navier-Stokes framework (URANS), the Turbulent Flame Closure model was employed. The FTF identified from LES shows quantitative agreement with experiment for amplitude and phase, especially for frequencies below 200 Hz. At higher frequencies, the gain of the FTF is underpredicted. URANS results show good qualitative agreement, capturing the main features of the flame response. However, the maximum amplitude and the phase lag of the FTF are underpredicted. Using a low-order network model of the test rig, the impact of the discrepancies in predicted FTFs on frequencies and growth rates of the lowest order eigenmodes were assessed. Small differences in predicted FTFs were found to have a significant impact on stability limits. Stability behavior in agreement with experimental data was achieved only with the LES-based flame transfer function.
APA, Harvard, Vancouver, ISO, and other styles
2

Yi, Tongxun, and Domenic A. Santavicca. "Flame Transfer Functions and Their Applications to Combustion Analysis and Control." In ASME Turbo Expo 2009: Power for Land, Sea, and Air. ASMEDC, 2009. http://dx.doi.org/10.1115/gt2009-60181.

Full text
Abstract:
Heat release rate responses to inlet fuel modulations, i.e. the flame transfer function (FTF), are measured for a turbulent, liquid-fueled, swirl-stabilized, LDI combustor. Fuel modulations are achieved using a motor-driven rotary fuel valve designed specially for this purpose, which is capable of fuel modulations up to 1 kHz. Small-amplitude fuel modulations, typically below 2.0% of the mean fuel, are applied in this study. There is almost no change in FTFs at different fuel modulation amplitude, implying that the derived FTFs are linear and that the induced heat release rate oscillations mainly respond to variations in the instantaneous fuel flow rate rather than in the droplet size and distribution. The gain and phases of the FTFs at different air flow rates and preheat temperature are examined. The instantaneous fuel flow rate is determined from pressure measurements upstream of a fuel nozzle. Applications of the FTF to modeling and control of combustion instability and lean blowout are discussed. Near-LBO stability enhancement using small-amplitude fuel modulation based on the output of a LQG controller is numerically demonstrated.
APA, Harvard, Vancouver, ISO, and other styles
3

Ghani, Abdulla, and Alp Albayrak. "From Pressure Time Series Data to Flame Transfer Functions: A Framework for Perfectly-Premixed Swirling Flames." In ASME Turbo Expo 2022: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/gt2022-84357.

Full text
Abstract:
Abstract We present a two-step optimization (TSO) framework, which uses the pressure data of an unstable combustion process to estimate the complex-valued Flame Transfer Function (FTF). From the pressure time series, we obtain the instability frequency and the amplitudes of the pressure fluctuations. The first optimization step is based on an acoustic network model of the combustor: the TSO approach makes use of the pressure data to find a simplified n-τ model, which reproduces the unstable combustion process. This step has already been validated for the Rijke tube, a laminar and a turbulent flame in Ghani et al. J. Eng. Gas Turb. and Power 142 (12) 2020. The major contribution of this work adds a second optimization loop to extend the n-τ model to the complex-valued FTF: the gain and phase obtained by the n-τ model are used to fit a distributed time delay model based on the work of Komarek & Polifke, J. Eng. Gas Turb. and Power 132 (6) 2010. Our proposed method is applied to a turbulent, premixed, swirl-stabilized flame operated at two power ratings (SI30kW and 70kW) and two swirler positions. The model results for the FTFs are compared against experimentally measured FTFs for these four configurations and all agree well. To the best of our knowledge, this is the first attempt to estimate the complex-valued FTF solely based on pressure measurements. Compared to classical methods for FTF determination such as experimental tests or numerical simulations, our TSO approach is fast and accurate. The proposed framework is suitable for perfectly-premixed flames stabilized by a swirling flow field, requires two pressure sensors placed at distinct axial locations and is easy to implement.
APA, Harvard, Vancouver, ISO, and other styles
4

Wiseman, Samuel, Andrea Gruber, and James R. Dawson. "Flame Transfer Functions for Turbulent, Premixed, Ammonia-Hydrogen-Nitrogen-Air Flames." In ASME Turbo Expo 2022: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/gt2022-83298.

Full text
Abstract:
Abstract Ammonia is a promising hydrogen and energy carrier but also a challenging fuel to use in gas turbines, due to its low flame speed, limited flammability range, and the production of NOx from fuel-bound nitrogen. Previous experimental and theoretical work has demonstrated that partially-dissociated ammonia (NH3/H2/N2 mixtures) can match many of the laminar flame properties of methane flames. Among the remaining concerns pertaining to the use of NH3/H2/N2 blends in gas turbines is their thermoacoustic behavior. This paper presents the first measurements of flame transfer functions (FTFs) for turbulent, premixed, NH3/H2/N2-air flames and compares them to CH4-air flames that have a similar unstretched laminar flame speed and adiabatic flame temperature. FTFs for NH3/H2/N2 blends were found to have a lower gain than CH4 FTFs at low frequencies. However, the cut-off frequency was found to be greater, due to a shorter flame length. The results suggest that NH3/H2/N2 blends may excite different thermoacoustic modes in gas turbines. In addition, the dependence of the flame response on forcing amplitude was measured for a forcing frequency of 650 Hz and the linearity of the NH3/H2/N2 flame response up to high forcing amplitudes suggests that particularly high-amplitude limit cycles may occur. For both CH4 flames and NH3/H2/N2 flames the confinement diameter was found to have a strong influence on peak gain values. The effect on the FTF phase was modest, except in the case of extreme confinement, where almost all of the flame is close to the wall, and in the case of a significant change in the flame stabilisation. Chemiluminescence resolved along the longitudinal direction shows a suppression of fluctuations when the flame first interacts with the wall followed by a subsequent recovery, but with a significant phase shift. Nevertheless, simple Strouhal number scalings based on the flame length and reactant bulk velocity at the dump plane result in a reasonable collapse of the FTF cut-off frequency and phase curves.
APA, Harvard, Vancouver, ISO, and other styles
5

Wehe, Shawn D., Hejie Li, and Keith R. McManus. "Flame Transfer Function Measurements in a Single Nozzle Combustor." In ASME 2011 Turbo Expo: Turbine Technical Conference and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/gt2011-45323.

Full text
Abstract:
This paper describes an experimental investigation of Flame Transfer Function (FTF) behavior where the response of a swirl-stabilized, natural gas fueled combustor is measured for partially premixed conditions. Controlled perturbations of the combustor inlet flows are produced using a siren and the combustor response is observed using several measurement techniques. The fuel/air equivalence ratio fluctuation is measured using a diode laser absorption sensor operating near 1.6 μm. Measurements of global heat release perturbations are obtained using a three-color optical emission technique and velocity measurements are obtained using the two-microphone method. FTFs are derived from these measurements for a frequency range commensurate with field-observed tones. Typical experimental investigations of dynamic signals involve the use of Fourier methods to obtain average signal amplitudes and phase. In this investigation, standard Fourier techniques are used to verify the driving frequencies, but they are coupled with a homodyne detection algorithm to measure time-dependent gain and phase behavior of a FTF.
APA, Harvard, Vancouver, ISO, and other styles
6

Tay Wo Chong, Luis, Thomas Komarek, Roland Kaess, Stephan Fo¨ller, and Wolfgang Polifke. "Identification of Flame Transfer Functions From LES of a Premixed Swirl Burner." In ASME Turbo Expo 2010: Power for Land, Sea, and Air. ASMEDC, 2010. http://dx.doi.org/10.1115/gt2010-22769.

Full text
Abstract:
Large eddy simulations of compressible, turbulent, reacting flow were carried out in order to identify the Flame Transfer Function (FTF) of a premixed swirl burner at different power ratings. The Thickened Flame model with one step kinetics was used to model combustion. Time-averaged simulation results for inert and reacting flow cases were compared with experimental data for velocity and heat release distribution with good agreement. Heat losses at the combustor walls were found to have a strong influence on computed flame shapes and spatial distributions of heat release. For identification of the FTF with correlation analysis, broadband excitation was imposed at the inlet. At low power rating (30 kW), measured and computed FTFs agree very well at low frequencies (corresponding to Strouhal numbers St < 4), showing a pronounced maximum of the gain at St ≈ 2. At higher frequencies, where the flame response weakens, the agreement between experiment and computation deteriorates, presumably due to decreasing signal-to-noise ratio. At higher thermal power (50 kW), a high-frequency instability developed during the simulation runs, resulting in poor overall signal-to-noise ratio and thus to unsatisfactory prediction of the gain of the flame transfer function. The phase of the FTF, on the other hand, was predicted with good accuracy up to St < 5. An analytical expression for the FTF, which models the flame dynamics as a superposition of time-delayed responses to perturbations of mass flow rate and swirl number, respectively, was found to match the experimental results.
APA, Harvard, Vancouver, ISO, and other styles
7

"Program: FTFC 2012." In 2012 IEEE Faible Tension Faible Consommation (FTFC 2012). IEEE, 2012. http://dx.doi.org/10.1109/ftfc.2012.6231750.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Nygård, Håkon T., and Nicholas A. Worth. "Flame Transfer Functions and Dynamics of a Closely Confined Premixed Bluff Body Stabilised Flame With Swirl." In ASME Turbo Expo 2020: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/gt2020-15176.

Full text
Abstract:
Abstract The Flame Transfer Function (FTF) and flame dynamics of a single, highly swirled, closely confined, premixed flame is studied over a wide range of operating conditions at a fixed perturbation level at the dump plane. The equivalence ratio and bulk velocity are varied in order to examine the important ratio of flame height to velocity in scaling the flame response function. The enclosure geometry is kept constant, and therefore due to the close confinement and varying flame height, strong flame-wall interactions are present for some operating conditions. The effect of these interactions on the FTF due to changes in the “relative” or “effective confinement” of the flame can therefore be studied. When the equivalence ratio is sufficiently high, and therefore the effective confinement sufficiently small, modulations, or dips, in the gain and phase of the FTF are observed, due to interference of the perturbations created at the swirler and at the dump plane. Due to the small length scales and relatively high velocities in the current configuration, the dip is at a high frequency and spans a wide range of frequencies compared to similar studies which have previously identified similar phenomena. It is also observed that when the equivalence ratio was decreased, increasing the effective confinement, a critical point is reached where the modulations are suppressed. This is linked to a temporal shift in the heat release rate at the downstream location where the flame impinges on the combustion chamber walls during the oscillation cycle. The shift causes a decrease in the expected level of interference, demonstrating that the effective confinement is an important parameter to consider for the nature of the FTF response. Additionally, a Distributed Time Lag (DTL) model with two distinct time lags, capturing the swirler perturbations and the perturbations at the inlet, is successfully applied to the FTFs. The model provides a simple way to accurately capture the two dominant time scales in the problem without the need of prior knowledge of the cause of the perturbations, and a simple expression to recreate the complex valued FTF. In addition the model also provides insight into the time scales of the problem, demonstrating in the current work that time scales recovered from the DTL analysis are offset from simple Strouhal number scaling, due to the effects of increasing effective confinement.
APA, Harvard, Vancouver, ISO, and other styles
9

"IEEE FTFC 2012 [Front cover]." In 2012 IEEE Faible Tension Faible Consommation (FTFC). IEEE, 2012. http://dx.doi.org/10.1109/ftfc.2012.6231715.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Andreini, Antonio, Bruno Facchini, Andrea Giusti, Ignazio Vitale, and Fabio Turrini. "Thermoacoustic Analysis of a Full Annular Lean Burn Aero-Engine Combustor." In ASME Turbo Expo 2013: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/gt2013-94877.

Full text
Abstract:
In order to reduce NOx emissions, modern gas turbines are often equipped with lean burn combustion systems, where the engine operates near the lean blow-out limits. One of the most critical issues of lean combustion technology is the onset of combustion instabilities related to a coupling between pressure oscillations and thermal fluctuations excited by the unsteady heat release. In this work a thermoacoustic analysis of a full annular combustor developed by AVIO is discussed. The system is equipped with an advanced PERM (Partially Evaporating and Rapid Mixing) injection system based on a piloted lean burn spray flame generated by a pre-filming atomizer. Combustor walls are based on multi-perforated liners to control metal temperature: these devices are also recognized as very effective sound absorbers, thus in innovative lean combustors they could represent a good means both for wall cooling and damping combustion instabilities. The performed analysis is based on the resolution of the eigenvalue problem related to an inhomogeneous wave equation which includes a source term representing heat release fluctuations (the so called Flame Transfer Function, FTF) in the flame region using a three-dimensional FEM code. A model representing the entire combustor was assembled including all the acoustically relevant geometrical features. In particular, the acoustic effect of multi-perforated liners was introduced by modeling the corresponding surfaces with an equivalent internal impedance. Different simulations with and without the presence of the flame were performed analyzing the influence of the multi-perforated liners. Furthermore, different modeling approaches for the FTF were examined and compared with each other. Comparisons with available experimental data showed a good agreement in terms of resonant frequencies in the case of passive simulations. On the other hand, when the presence of the flame is considered, comparisons with experiments showed the inadequacy of FTFs commonly used for premixed combustion and thus the necessity of an improved FTF, more suitable for liquid fueled gas turbines where the evaporation process could play an important role in the flame heat release fluctuations.
APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "FTfe"

1

Dedeken, Chiara, and Kevin Osborne. Repatriating FTFs from Syria: Learning from the Western Balkans. RESOLVE Network, October 2021. http://dx.doi.org/10.37805/pn2021.23.wb.

Full text
Abstract:
Four countries in the Western Balkan region (Kosovo, Bosnia and Herzegovina, North Macedonia, and Montenegro) are in the top ten countries with the most foreign terrorist fighters (FTFs) per capita. The political will to repatriate FTFs remains strong, at least in the Western Balkans, despite delays in 2020 due to COVID-19. In other parts of the world, especially high-income countries, political will to repatriate is considerably lower. COVID-19 has further constrained nations in their efforts to repatriate law-abiding citizens, which is less controversial than FTF families. Based on discussions with government officials and security officers in the Western Balkans as well as international experts and donors, this policy note provides operational recommendations to move forward with repatriation, rehabilitation, and reintegration of returnees building on lessons from repatriations in Albania, Kosovo, and North Macedonia. It urges governments globally to double down on repatriation efforts and to call on experience from governments in the Balkans to bring back their FTFs now. The recommendations in this policy note are relevant to any country where political will to repatriate FTFs can be generated.
APA, Harvard, Vancouver, ISO, and other styles
2

Burniske, Jessica, Dustin Lewis, and Naz Modirzadeh. Suppressing Foreign Terrorist Fighters and Supporting Principled Humanitarian Action: A Provisional Framework for Analyzing State Practice. Harvard Law School Program on International Law and Armed Conflict, October 2015. http://dx.doi.org/10.54813/nrmd2833.

Full text
Abstract:
In 2014, reports suggested that a surge of foreign jihadists were participating in armed conflicts in Syria, Iraq, and elsewhere. The United Nations Security Council responded by imposing in Resolution 2178 (2014) an array of obligations on member states to counter the threat posed by “foreign terrorist fighters” (FTFs). In the intervening year, those states have taken a range of actions — though at various speeds and with varying levels of commitment — to implement the FTF obligations imposed by the Council. Meanwhile, many states continue to fund and otherwise throw their support behind life-saving humanitarian relief for civilians in armed conflicts around the world — including conflicts involving terrorists. Yet, in recent years, members of the humanitarian community have been increasingly aware of the real, perceived, and potential impacts of counterterrorism laws on humanitarian action. Part of their interest stems from the fact that certain counterterrorism laws may, intentionally or unintentionally, adversely affect principled humanitarian action, especially in regions where terrorist groups control territory (and thus access to civilians, too). The effects of these laws may be widespread — ranging from heightened due diligence requirements on humanitarian organizations to restrictions on travel, from greater government scrutiny of national and regional staff of humanitarian organizations to decreased access to financial services and funding. Against that backdrop, this briefing report has two aims: first, to provide a primer on the most salient issues at the intersection of counterterrorism measures and humanitarian aid and assistance, with a focus on the ascendant FTF framing. And second, to put forward, for critical feedback and assessment, a provisional methodology for evaluating the following question: is it feasible to subject two key contemporary wartime concerns — the fight against FTFs and supporting humanitarian aid and assistance for civilians in terrorist-controlled territories — to meaningful empirical analysis?
APA, Harvard, Vancouver, ISO, and other styles
3

Kwiat, Kevin. Fault Tolerance for Fight Through (FTFT). Fort Belvoir, VA: Defense Technical Information Center, February 2013. http://dx.doi.org/10.21236/ada579665.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Punjabi, Maitri, Julianne Norman, Lauren Edwards, and Peter Muyingo. Using ACASI to Measure Gender-Based Violence in Ugandan Primary Schools. RTI Press, March 2021. http://dx.doi.org/10.3768/rtipress.2021.rb.0025.2104.

Full text
Abstract:
School-related gender-based violence (SRGBV) remains difficult to measure because of high sensitivity and response bias. However, most SRGBV measurement relies on face-to-face (FTF) survey administration, which is susceptible to increased social desirability bias. Widely used in research on sensitive topics, Audio Computer-Assisted Self-Interview (ACASI) allows subjects to respond to pre-recorded questions on a computerized device, providing respondents with privacy and confidentiality. This brief contains the findings from a large-scale study conducted in Uganda in 2019 where primary grade 3 students were randomly selected to complete surveys using either ACASI or FTF administration. The surveys covered school climate, gender attitudes, social-emotional learning, and experiences of SRGBV. Through this study, we find that although most survey responses were comparable between ACASI and FTF groups, the reporting of experiences of sexual violence differed drastically: 43% of students in the FTF group versus 77% of students in the ACASI group reported experiencing sexual violence in the past school term. We also find that factor structures are similar for data collected with ACASI compared with data collected FTF, though there is weaker evidence for construct validity for both administration modes. We conclude that ACASI is a valuable tool in measuring sensitive sub-topics of SRGBV and should be utilized over FTF administration, although further psychometric testing of these surveys is recommended.
APA, Harvard, Vancouver, ISO, and other styles
5

LaFortune, K., and L. Perkins. NRL FTF 0.5MJ-Class Nominal Baseline Target. Office of Scientific and Technical Information (OSTI), December 2007. http://dx.doi.org/10.2172/926393.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Martino, C., D. Daniel McCabe, T. Tommy Edwards, and R. Ralph Nichols. ANALYSIS OF TANK 28F SALTCAKE CORE SAMPLES FTF-456 - 467. Office of Scientific and Technical Information (OSTI), February 2007. http://dx.doi.org/10.2172/907768.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Pareizs, J. CHARACTERIZATION RESULTS OF SRS TANK 26 SAMPLES FTF-26-19-12 AND -13. Office of Scientific and Technical Information (OSTI), September 2019. http://dx.doi.org/10.2172/1568794.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Pareizs, J. WASHING STUDY WITH SRS TANK 26 SAMPLES FTF-26-19-12 AND -13. Office of Scientific and Technical Information (OSTI), October 2019. http://dx.doi.org/10.2172/1572882.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Flach, G. P., and T. Hang. Impacts of Updated GSA Groundwater Flow Models on the FTF, HTF and SDF PAs. Office of Scientific and Technical Information (OSTI), September 2017. http://dx.doi.org/10.2172/1426653.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Oji, L. N. Analysis of tank 7 surface supernatant sample (FTF-7-15-26) in support of corrosion control program. Office of Scientific and Technical Information (OSTI), October 2015. http://dx.doi.org/10.2172/1225179.

Full text
APA, Harvard, Vancouver, ISO, and other styles
You might also be interested in the extended bibliographies on the topic 'FTfe' for particular source types:
Journal articles Dissertations / Theses Books
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography