Дисертації з теми "Reference technique"
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Chan, Yiu Fai. "A new curvature-compensation technique for bandgap voltage reference." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape17/PQDD_0003/MQ28924.pdf.
Повний текст джерелаBoo, Hyun Ho. "Virtual ground reference buffer technique in switched-capacitor circuits." Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/99812.
Повний текст джерелаCataloged from PDF version of thesis.
Includes bibliographical references (pages 121-125).
The performance of switched-capacitor circuits depends highly on the op-amp specifications. In conventional designs, trade-offs in speed, noise, and settling accuracy make it difficult to implement power-efficient switched-capacitor circuits. The problem originates from the inverse relationship between the feedback factor and the signal gain. This thesis proposes the virtual ground reference buffer technique that enhances performance by improving the feedback factor of the op-amp without affecting signal gain. A key concept in the technique is the bootstrapping action of level-shifting buffers. It exploits op-amp-based circuits whose principles are very well understood and the design techniques are mature. The solution ultimately relaxes the required op-amp requirements including unity-gain bandwidth, noise, offset voltage and open-loop gain that would otherwise result in complex design and high power consumption. The concept is demonstrated in a 12-b 250MS/s pipelined ADC.
by Hyun Ho Boo.
Ph. D.
Headlee, Jonathan Michael. "A No-reference Image Enhancement Quality Metric and Fusion Technique." University of Dayton / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1428755761.
Повний текст джерелаXi-Hua, Li. "A NEW DATA PROCESSING TECHNIQUE OF PPM/PPK WITHOUT THE REFERENCE PULSE." International Foundation for Telemetering, 1990. http://hdl.handle.net/10150/613478.
Повний текст джерелаThis paper describes the technical principle that signals conversion, data-processing and data storage are directly carried out without filling up with the reference pulse for PPM and PPK (pulse position keying). By means of analysis for typical frame structure of PPM/PPK signals, a variety of math models of signal time relationship of the system were found, and based on this, a engineering way and a principle block diagram for signals conversion, data processing and data storage were given out.
Gonzalez-Sanchez, Jorge A. "Corrosion fatigue initiation in stainless steels : the scanning reference electrode technique." Thesis, Sheffield Hallam University, 2002. http://shura.shu.ac.uk/19701/.
Повний текст джерелаMossman, Judith. "Euripides' Hecuba : a re-evaluation, with special reference to dramatic technique." Thesis, University of Oxford, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.670312.
Повний текст джерелаLivingstone, Niall. "Isocrates' Busiris : a commentary; with special reference to rhetorical purpose and technique." Thesis, University of Oxford, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.321516.
Повний текст джерелаHettiarachchi, Don Lahiru Nirmal Manikka. "An Accelerated General Purpose No-Reference Image Quality Assessment Metric and an Image Fusion Technique." University of Dayton / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1470048998.
Повний текст джерелаAllport, David M. "Evaluation of two reference planes to the horizon in the natural head position." Morgantown, W. Va. : [West Virginia University Libraries], 2002. http://etd.wvu.edu/templates/showETD.cfm?recnum=2565.
Повний текст джерелаTitle from document title page. Document formatted into pages; contains vii, 35 p. : ill. (some col.). Vita. Includes abstract. Includes bibliographical references (p. 29-30).
Nebe, Warren. "A critical analysis of the teaching technique role play, with particular reference to educational drama." Master's thesis, University of Cape Town, 1991. http://hdl.handle.net/11427/12745.
Повний текст джерелаThis study analyses Role Play teaching techniques employed in Educational Drama and examines the possibility that the current practice of Role Play may actually obstruct the personal and collective empowerment of students, thereby limiting the educative potential of drama.
Crévier, Hélène A. "Cultural methods for dehydrating onion production in Quebec, with particular reference to the fluid drilling technique." Thesis, McGill University, 1986. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=65969.
Повний текст джерелаSvan, Jamie. "The cornett and performance practice in Germany, c. 1511-1545, with particular reference to divisions technique." Thesis, University of Birmingham, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.497175.
Повний текст джерелаde, Silva Manawaduge Supun Samudika. "An Approach to Utilize a No-Reference Image Quality Metric and Fusion Technique for the Enhancement of Color Images." University of Dayton / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1470049079.
Повний текст джерелаCox, Frances Jayne. "The notion of physicality in vocal training for the performer in South African theatre, with particular reference to the Alexander technique." Thesis, Rhodes University, 1991. http://hdl.handle.net/10962/d1002366.
Повний текст джерелаCleto, Fabiana da Rocha. "Referenciais tecnológicos para a construção de edifícios." Universidade de São Paulo, 2006. http://www.teses.usp.br/teses/disponiveis/3/3146/tde-17112006-143320/.
Повний текст джерелаThe technical references are documents that can be used in different phases of the a building project, with no legal effect as standards or Codes, developed by the agents of the industry, to establish and disseminate best practices for planning, design, execution, use, maintenance and post-use phases, with the aim of to achieve quality and performance of the final product and to consolidate and to broadcast knowledge. Such documents exist in different countries, as the model codes or codes of practices and the best practice guides , but this is not the case in Brazil, even though we can find some initiatives in this way. Consequently, the objective of this research is to analyse, discuss and propose technical, methodological and institutional orientations to the implementation of technical referencesfor the building construction sector in Brazil. For this purpose, there is a review of documents such as procurement texts and technical manuals, an analysis of their structures and contents and a deeperexamination of the application of the document used in social housing projects in Sao Paulo. Some foreign documents are also analysed, as well as the technical documents model used in France ('RFXPHQWV_ 7HFKQLTXHV_ 8QLILpV_ __ '78), discussing its adaptation to fit Brazilian reality. The conclusion of this work lies in the analysis, amongst other factors, of the concept of technical reference documents, its context and interfaces, bringing orientation concerning their structure and content, and presenting difficulties and opportunities of developing and using them, as well as showing the need of additional actions, including those of institutional nature, that contribute to their practical and effective use.
Valkov, Boris Ivanov. "A blurred interface formulation of The Reference Map Technique for Fluid-Solid Interactions and Fluid-Solid-Solid Interactions." Thesis, Massachusetts Institute of Technology, 2014. http://hdl.handle.net/1721.1/92123.
Повний текст джерелаCataloged from PDF version of thesis.
Includes bibliographical references (pages 143-144).
In this work we present a blurred interface method for Fluid-Solid Interactions (FSI) and multiple solids immersed in a fluid or FSSI (Fluid-Solid-Solid Interactions) based on the reference map technique as presented by Kamrin and Rycroft. I will follow the chain of thought which lead from the initial sharp interface technique to the newer blurred interface one. We will present its capabilities of doing fully-coupled simulations of a compressible Navier-Stokes fluid and highly non-linear solid undergoing large deformations all performed on a single Eulerian grid with no Lagrangian particles whatsoever. The Reference Map Technique (RMT) provides an Eulerian simulation framework allowing to compute fully coupled fluid/soft-solid interactions. However, due to the extrapolations inherent to the Ghost Fluid Method (GFM) for fluid/fluid interactions, on which the RMT is based, numerical artifacts get created in the resulting pressure and velocity fields whenever the levelset defining the interface crosses a gridpoint from the fixed cartesian grid utilized in this method. We will therefore follow the creation and propagation of these artifacts as well as analyze how the blurred technique solves or avoids these problems.
by Boris Ivanov Valkov.
S.M.
Fourie, Paula. "A critical study of five reconstruction of Bach's Markuspassion BWV 247 with particular reference to the parody technique." Diss., University of Pretoria, 2010. http://hdl.handle.net/2263/26093.
Повний текст джерелаDissertation (MMus)--University of Pretoria, 2010.
Music
unrestricted
Albezzawy, Muhammad Nabil Mustafa. "Advanced signal processing methods for source identification using references." Electronic Thesis or Diss., Lyon, INSA, 2024. http://www.theses.fr/2024ISAL0074.
Повний текст джерелаRank-reduced reference/coherence techniques based on the use of references, i.e. fixed sensors, are widely used to solve the two equivalent problems of source extraction and resynchronization encountered during remote sensing of physical fields, when the number of references surpasses the number of incoherent sources. In such case, the cross-spectral matrix (CSM) becomes ill-conditioned, resulting in the invalidity of the least squares LS solution. Although the truncated singular value decomposition (TSVD) was successfully applied in the literature to solve this problem, its validity is limited only to the case of scalar noise on the references. It is also very difficult to define a threshold, for truncation, when the singular values are gradually decreasing. This thesis proposes a solution based on finding a set of virtual references that is maximally correlated with the field measurements, named the maximally-coherent reference (MCR) Technique. This solution is optimal, especially, in the case of correlated noise on the reference, where TSVD fails. However the technique also includes an eigenvalue truncation step, similar to the one required for the TSVD, which necessitates a priori knowledge or the estimation of the number of incoherent sources, i.e. source enumeration, which is an ill-posed inverse problem, insufficiently investigated in the literature within the framework of reference techniques. In this thesis, after providing a unified formalism for all the reference techniques in the literature, three alternative source enumeration methods, applicable to all the reference techniques, were presented namely; a direct likelihood ratio test (LRT) against the saturated model, a parametric bootstrap technique and a cross-validation approach. A comparative study is performed among the three methods, based on simulated numerical data, real sound experimental data, and real electrical motor data. The results showed two important outcomes. The first is that the number of snapshots (spectral windows), used in the spectral analysis, greatly affects the performance of the three methods, and that, they behave differently for the same number of used snapshots. The second is that parametric bootstrapping turned out to be the best method in terms of both estimation accuracy and robustness with regard to the used number of snapshots. Finally, the MCR technique accompanied with bootstrapping was employed for source extraction and resynchronization of real data from laboratory experiments, and an e-motor, and it returned better results than the LS solution and the TSVD when employed for the same purpose
Tiplady, John Alun. "Aspects of language use in the narrative technique of Wolfram von Eschenbach's 'Parzival', with special reference to books X and XI." Thesis, King's College London (University of London), 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.429186.
Повний текст джерелаReche, Jérôme. "Nouvelle méthodologie hybride pour la mesure de rugosités sub-nanométriques." Thesis, Université Grenoble Alpes (ComUE), 2019. http://www.theses.fr/2019GREAT050.
Повний текст джерелаRoughness at Sub-nanometric scale determination becomes a critical issue, especially for patterns with critical dimensions below 10nm. Currently, there is no metrology technique able to provide a result with high precision and accuracy. A way, based on hybrid metrology, is currently explored and dedicated to dimensional measurements. This hybrid metrology uses data fusion algorithms in order to address data coming from different tools. This thesis presents some improvements on line roughness analysis thanks to frequency decomposition and associated model. The current techniques used for roughness determination are explained and a new one SAXS (Small Angle X-rays Scattering) is used to push again limits of extraction of roughness. This technique has a high potential to determine sub nanometrics patterns. Moreover, the design and manufacturing of reference line roughness samples is made, following the state of art with periodic roughness, but also more complex roughness determined by a statistical model usually used for measurement. Finally, this work focus on hybridization methods and more especially on neural network utilization. Thus, the establishment of a neural network is detailed through the multitude of parameters which must be set. In addition, training of the neural network on simulation leads to the capability to generate different metrology
Gaddam, Ravi Shankar. "A 10-Bit Dual Plate Sampling Capacitive DAC with Auto-Zero On-Chip Reference Voltage Generation." University of Akron / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=akron1349294825.
Повний текст джерелаWheeler, Sonya. "A structured technique for applying risk based internal auditing in information technology environments : (with specific reference to llA RBIA, King Report and CobiT) /." Link to the online version, 2005. http://hdl.handle.net/10019/1310.
Повний текст джерелаNobes, Pauline Heather. "Neglected sources of the solo violin repertory before ca. 1750 : with special reference to unaccompanied performance, scordatura and other aspects of violin technique." Thesis, University of Exeter, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.341168.
Повний текст джерелаWheeler, Sonya. "A structured technique for applying Risk Based Internal Auditing in information technology environments (with specific reference to IIA RBIA, King Report and CobiT)." Thesis, Stellenbosch : University of Stellenbosch, 2005. http://hdl.handle.net/10019.1/1016.
Повний текст джерелаENGLISH ABSTRACT: A technique that may be used to incorporate Risk Based Internal Auditing (RBIA) in the IT environment is to follow annual audit planning methodology steps. The IT infrastructure elements are linked to the business processes which they support. Their ranking are based on the risk assessments of the business process, the business process priority, the dependency of the business process on IT and the IT infrastructure element’s own risk assessment. CobiT is used as an auditing method, i.e. best practice guidance to audit against.
Gill, Martin. "From technology to technique : the implications of the written sign for language, cognition and learning, with particular reference to reading in a second language." Thesis, University of Edinburgh, 1998. http://hdl.handle.net/1842/21259.
Повний текст джерелаBLASCO, GUY. "Validite des equations de reference utilisees dans l'expression des resultats de la capacite de transfert du monoxyde de carbone par la technique de l'apnee." Toulouse 3, 1988. http://www.theses.fr/1988TOU31261.
Повний текст джерелаDIF, M'HAMED. "Elements pour une approche d'evaluation socio-economique multicritere et de mise en oeuvre de decision d'investir dans une economie en developpement (avec reference au secteur industriel algerien)." Université Louis Pasteur (Strasbourg) (1971-2008), 1989. http://www.theses.fr/1989STR10016.
Повний текст джерелаThis research is an attempt to develop, in three main parts, "an approach to multicriteria socio-economic appraisal and implementation of investment decisions in a developing economy". The first part revisists the notions : "information imperfections, uncertainty and investment decision making". It introduces in chapter i "a (fourstages) theoretical model for decision making process under conditions of uncertainty and information imperfections". The first two stages are applied, in a second chapter, to "the preparation of investment proposals". The third stage of the model deals, in two consecutive chapters (3 & 4), with "the socio-economic appraisal of investment proposals": , chapter 3 introduces "a framework to multicriteria socio-economic evaluation of investment decisions". , chapter 4 applies the proposed framework (with reference to the algerian industrial sector) to "the evaluation and decision making". The last part of the thesis concerns the reduction of uncertainty effect. This effect can be reduced by means of introducing two types of flexibility (technical flexibility and organisational flexibility) in the various stages of projects implementation
Bakouros, Y. L. "Offshore pipeline reliability prediction : An assessment of the breakdown characteristics of offshore pipelines and the development of a statistical technique to improve their reliability prediction with particular reference." Thesis, University of Bradford, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.233657.
Повний текст джерела鄭展朗 and Chin-long Cheng. "Reference code correlator techniques." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1999. http://hub.hku.hk/bib/B42574985.
Повний текст джерелаCheng, Chin-long. "Reference code correlator techniques." Click to view the E-thesis via HKUTO, 1999. http://sunzi.lib.hku.hk/hkuto/record/B42574985.
Повний текст джерелаAppert, Damien. "Conception et évaluation de techniques d'interaction non visuelle optimisées pour de la transmission d'information." Thesis, Toulouse 3, 2016. http://www.theses.fr/2016TOU30095/document.
Повний текст джерелаIn situations where the visual perception is strongly constraint or deficient, it is necessary to make perceptible the information with a "not visual form" while taking into account human sensory and mnesic capacities. For example, a blind person wishing to acquaint an itinerary must read it under a non visual form and memorize it. However, besides the material aspect, the implementation of alternatives (non-visual) still faces to the cognitive abilities of the user (comprehension, memorization, integration of various information, etc.). The purpose of this thesis is to contribute to the design of interaction techniques allowing to optimize the transmission not visual of the information. For these purposes, I explored the feature of multimodality as a means of optimization, allowing of exceeding the memorization limits. I focused on the study of interaction techniques based on auditory and tactile modalities and by minimizing the use of the speech, in order to develop techniques for different environments (flexibility), optimize the use of perceptual channels (operating the properties of sound in audio messages to transmit more information, for example), avoid limiting my techniques by the language barrier or understanding and finally, to explore alternatives to the synthesised voice alone. The works of my thesis led to the design, to the implementation and to the evaluation of interaction techniques "non-visual" and "multiform", in answer to different contexts, whom in particular those of the information transmission of type , (pair of coordinates) and (sequence of couples direction-distance). To achieve design my interactions, I have made a review of literature in order to extract the main factors of design of interaction techniques dedicated to the transmission not visual of the information. Then, I have organized these factors in an analytical framework on which I have relied to design each of my techniques. Three separate experiments were led to evaluate the influence of design factors on the effectiveness of interactions and satisfaction towards users of technology. I can give some of them, the involvement of users (active or passive), the presence of explicit help, the transmission of several information in parallel, the main modality used and the type of coding in which is encoded the information
Lago, Nicolò. "Characterization and modelling of organic devices for simultaneous stimulation and recording of cellular electrical activity with Reference-Less Electrolyte-Gated Organic Field-Effect Transistors." Doctoral thesis, Università degli studi di Padova, 2018. http://hdl.handle.net/11577/3426781.
Повний текст джерелаLo studio delle malattie neuronali e neuro-degenerative richiede lo sviluppo di nuovi strumenti e tecnologie per creare dispositivi neuro-elettronici funzionali che consentano sia la stimolazione che la registrazione dell'attività elettrica cellulare. Nell'ultimo decennio l'elettronica organica sta emergendo nel campo della bioelettronica e diversi gruppi di ricerca hanno iniziato a sviluppare interfacce neurali basate su semiconduttori organici. L'interesse per tali tecnologie deriva dalle proprietà intrinseche dei materiali organici quali basso costo, trasparenza, morbidezza e flessibilità, nonché la biocompatibilità e l'idoneità nella realizzazione di sistemi stampati completamente organici. In particolare, i biosensori basati sulla tecnologia a transistor ad effetto campo organico (OFET) integrano il sensing e l'amplificazione del segnale in un singolo dispositivo, aprendo la strada a nuove interfacce neurali impiantabili per applicazioni in vivo. Per padroneggiare le proprietà di rilevamento e amplificazione dei sensori basati su OFET, è obbligatorio acquisire una conoscenza approfondita dei singoli transistor (senza la presenza di analiti e/o cellule) che vadano oltre le caratterizzazioni di base o modelli generali. Inoltre, i transistor organici sono caratterizzati da diversi principi di funzionamento e diverse proprietà rispetto alla loro controparte inorganica. In questo lavoro abbiamo svolto caratterizzazioni impulsate e transienti su diversi OFET (sia di tipo p che di tipo n) mostrando che, anche se i transistor possono accendersi e spegnersi molto velocemente, l'accumulo e/o lo svuotamento del canale conduttivo continua per tempi che possono superare le decine di secondi. Tale fenomeno deve essere attentamente considerato nella realizzazione di un biosensore e nelle sue applicazioni, poiché il punto operativo DC del dispositivo può andare alla deriva durante la registrazione dei segnali cellulari, alterando così i dati raccolti. Questo fenomeno viene ulteriormente approfondito caratterizzano i dispositivi a diverse temperature e per mezzo della tecnica DLTS. Abbiamo dimostrato che il lento accumulo (e svuotamento) del canale è dovuto alla densità di stati del semiconduttore organico che devono poter essere occupati per portare il livello energetico di Fermi vicino alla banda di conduzione. Questo è un fenomeno che può richiedere diversi secondi che possiamo descrivere introducendo una mobilità dipendente dal tempo. Per comprendere i processi di trasduzione elettrochimica tra cellule viventi ed il biosensore organico, abbiamo realizzato una struttura a due elettrodi (STACK) in cui una goccia di soluzione salina viene messa direttamente a contatto con il semiconduttore organico. Su questi dispositivi, abbiamo eseguito la spettroscopia di impedenza elettrochimica a diverse polarizzazioni DC e abbiamo sviluppato un modello circuitale equivalente per le strutture metallo/semiconduttore organico/soluzione che vengono tipicamente utilizzate per la realizzazione di bio-trasduttori. Il nostro approccio prevede di estendere il range standard delle tensioni operative per questo genere di dispositivi. Ciò ha permesso di investigare e distinguere i diversi fenomeni che si verificano nei diversi strati e interfacce: adsorbimento di ioni nel semiconduttore; accumulo e scambio di cariche di portanti all'interfaccia semiconduttore/elettrolita; percolazione delle specie ioniche attraverso il semiconduttore organico; diffusione di ioni attraverso l'elettrolita; adsorbimento di ioni e scambio di carica all'interfaccia col metallo. Abbiamo evidenziato la presenza di percolazione ionica attraverso lo strato di semiconduttore organico, che è descritto nel modello circuitale per mezzo di un'impedenza di de Levie. La presenza di percolazione è stata dimostrata mediante microscopia elettronica a scansione ambientale e analisi profilometrica. Sebbene la percolazione sia molto più evidente a valori di bias negativi elevati, risulta presente anche a basse condizioni di bias. L'ottimo accordo tra il modello e i dati sperimentali rende il modello un valido strumento per studiare i meccanismi di trasduzione tra film organici e l'ambiente fisiologico. Quindi questo modello può essere uno strumento utile non solo per la caratterizzazione e l'analisi dei guasti dei dispositivi elettronici, come water-gated transistor, interfacce elettrofisiologiche, celle a combustibile e altri sistemi elettrochimici, ma anche nel caso in cui una soluzione è in intimo contatto con un altro materiale per determinare e/o quantificare se si verificano meccanismi indesiderati come percolazione e/o processi corrosivi. Infine, il bagaglio di conoscenze ottenuto studiando i dispositivi OFET e STACK è stato messo utillizato per realizzare dispositivi EGOFET. Abbiamo quindi sviluppato un modello per descrivere gli EGOFET come interfacce neurali. Abbiamo dimostrato che il nostro modello può essere applicato con successo per comprendere il comportamento di una classe più generale di dispositivi, compresi i transistor sia organici che inorganici. Abbiamo introdotto l'RL-EGOFET (reference-less EGOFET) e abbiamo dimostrato che questa struttura può essere utilizzata con successo come interfaccia neurale flessibile per il recording extracellulare in vivo senza la necessità di un elettrodo di riferimento, rendendo l'impianto meno invasivo e più facile da usare. I nostri risultati aprono la strada all'utilizzo e all'ottimizzazione di EGOFET e RL-EGOFET come interfacce neurali.
Hayati, Abolfazl. "Natural Ventilation and Air Infiltration in Large Single‑Zone Buildings : Measurements and Modelling with Reference to Historical Churches." Doctoral thesis, Högskolan i Gävle, Energisystem, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-24612.
Повний текст джерелаNaturlig ventilation är den dominerande ventilationsprocessen i äldre byggnader såsom kyrkor, och även i de flesta småhus i Sverige och övriga delar av världen. Luftinfiltration och vädring utgör viktiga komponenter i naturlig ventilation, där luftinfiltration är luftflöde genom oavsiktliga läckage i byggnadsskalet, medan vädring är avsiktligt luftutbyte genom stora öppningar såsom fönster och dörrar/portar. Vädring kan i sin tur ske ensidigt (genom en öppning) eller som tvärdrag (genom två eller flera öppningar belägna på olika ytterväggar). Det totala luftutbytet påverkar värmeförluster och inomhusluftens kvalité. I kyrkor orsakar avsättning av luftpartiklar en gradvis nedsmutsning av invändiga ytor, inklusive väggmålningar och andra konstföremål. Betydande mängder partiklar avges från besökare, tända ljus, rökelse, o.d. Tillfällig vädring kan minska detta problem, men även användas för att justera innetemperaturen. Föreliggande studie analyserar mekanismer och predikteringsmodeller gällande luftinfiltration och dörrvädring genom fältmätningar, vindtunnelförsök och datorsimuleringar. Luftinfiltration och vädring har samma drivkrafter, d.v.s. vind och termik (inne‑ute temperaturskillnader). Båda dessa drivkrafter är svåra att predicera, särskilt vindinducerade flöden och kombinationen av termik och vind. Två av de mest etablerade modellerna för luftinfiltrationsprediktering i byggnader har utvärderats via mätningar i tre kulturhistoriska stenkyrkor i Sverige. En korrigeringsfaktor av 0,8 föreslås för bättre prediktion av den ena modellen (som gav bäst resultat) gällande höga en-zonsbyggnader såsom kyrkor. En detaljerad numerisk modell är utvecklad för luftinfiltrationsprediktering, där indata baseras på fältundersökningar, inkl. IR-termografering och uppmätt av neutrala tryckplanet (NPL). Modellens funktionalitet har validerats via mätningar i en av fallstudierna och pekar på tämligen god prediktionsprestanda. Vidare utveckling av modellen föreslås, inkl. ett mer systematiskt kalibreringssystem, för olika typer av byggnader och väderförhållanden. Gällande vädring mättes både ensidigt flöde och tvärdrag genom portar i olika kyrkobyggnader med hjälp av spårgas samt direkta lufthastighetsmätningar i portöppning. Mätresultaten jämfördes med erhållna prediktioner från fyra tidigare utvecklade modeller för ensidig ventilation. De modeller som tog hänsyn till vindturbulens gav något bättre resultat. Enligt utförda mätningar medför en timmes ensidig portvädring i en kyrka cirka 50 % luftutbyte, vilket indikerar att detta är en tillämpbar ventilationsmetod, även för så pass stora byggnadsvolymer. Ett särskilt vädringsdiagram presenteras, som syftar till att underlätta uppskattning av erforderlig vädringsperiod. Vidare studerades predikteringsprestanda hos IDA Indoor Climate and Energy (IDA-ICE) simuleringsprogram avseende vädring, där simuleringsdata jämfördes med fältmätningar i en kyrka. Programmets prediktion av ensidigt luftflöde genom en öppen kyrkport var av samma storlekordning som det uppmäta; dock klarade programmet inte av att hantera inverkan av vindriktning så väl, vilket pekar på en utvecklingspotential. Avslutningsvis undersöktes vinddrivet flöde igenom portöppningar i en kyrkmodell i vindtunnel, där luftomsättningen mättes med hjälp av spårgasmetoden. Vid ensidig vädring observerades högre flöde vid högre vindturbulens och när öppningen var på vindsidan av byggnaden, i överensstämmelse med fältmätningarna. Dessutom var vädringsflödet vid tvärdrag i storleksordningen 15 högre än det vid ensidig vädring. Det verkar alltså som att man kan öka vädringstakten avsevärt om man kan åstadkomma tvärdrag. Kalibreringskonstanter presenteras också för en enkel ekvation för vinddrivet flöde genom portar. Vindtunnelstudien indikerar vidare att advektion genom turbulens är en viktigare vädringsmekanism än pumpning. Föreliggande arbete bidrar med kunskap speciellt kring luftinfiltration och vädring genom portar i höga en-zonsbyggnader. Resultaten kan även vara tillämpliga på andra typer av höga en-zonsbyggnader såsom industrihallar, atrier/ljusgårdar och idrottshallar.
Church project
Camara, C. D. J. "Plant identification using model reference techniques." Thesis, University of Cape Town, 1987. http://hdl.handle.net/11427/23544.
Повний текст джерелаAhmed, Rana R. "Performance Modelling and Analysis of a New CoMP-based Handover Scheme for Next Generation Wireless Networks. Performance Modelling and Analysis for the Design and Development of a New Handover Scheme for Cell Edge Users in Next Generation Wireless Networks (NGWNs) Based on the Coordinated Multi-Point (CoMP) Joint Transmission (JT) Technique." Thesis, University of Bradford, 2017. http://hdl.handle.net/10454/16785.
Повний текст джерелаHeristchi, Vincent. "Neige électronique - L'effet vidéo." Thesis, Paris 3, 2010. http://www.theses.fr/2010PA030105.
Повний текст джерелаVideo is currently used on television and as an amateur format, and has been for a few decades. But its mixing with feature movies shot on traditional 16 or 35 millimetres is more occasional, even if it can offer new aesthetical possibilities. By keeping the particular texture of video, in a mix and a confrontation of formats, an effect can occur. The creation of that “video effect” is the subject of this study. What can create a video image [defined and readable as video] when a fiction or a documentary’s reference of format is on celluloid? To that purpose, some films directed by Robert Kramer, William Klein, Michael Haneke, Fritz Lang, Jean-Luc Godard, Atom Egoyan, David Cronenberg, David Lynch, Abbas Kiarostami, Abel Ferrara, Wim Wenders, Chris Marker or Jean- Daniel Pollet will be investigated. These images determine a particular video effect [television, CCTV or amateur-intimate], and its constituting elements can be altered. Video can also lose all its narrative justification and influence the audience’s emotions only through its texture, in order to eventually « make the image » [in reference to Samuel Beckett’s short story]. Finally, by creating instability in the nature of its constitution, the video effect can contain the openness of a poetic whisper
Godier, Patrice. "Fabrication de la ville contemporaine : processus et acteurs : le cas de l'agglomération bordelaise." Thesis, Bordeaux 2, 2009. http://www.theses.fr/2009BOR21647/document.
Повний текст джерелаIn a context where urban problems forms of public action and systems of actors drastically change the ways to build the city these last decades, we must understand the logics of action that influence the dynamics of spatial and territorial changes. The analysis model is developed from the point of view of the urban sociology and is based on three important intercative processes. A strategic framing process whose reference system gives the standart in terms of a base of shared representations. A complicated organizational process (networking), involving ressources and persons whose actions and interventions need to be coordonated and controlled within a specifical technical, legal and organisatinal system (urban contracting owner). A process, of a precise, material and spatial translation aiming the concrete realization, on privileged territories of operations which on the basis of the initial intentions and within the framework of a space of specific activities, combine economic, political and symbolic objectives. The concept of urban project is the expression of the chaining of these three processes. Starting from a jointly defined issue on the scale of the city of agglomeration, it generates during a given time period a collective activity, mobilizes and recruits in each stage of all levels of responsabilities a plurality of actors around a serie of urban and architectural operations. The agglomeration of Bordeaux and its transformation over the period 1995-2006 is used as reference base
Lombard, Grégori Muriel. "Contribution au génie productique : prototypage d'une architecture d'ingénierie concourante des systèmes intégrés de fabrication manufacturière." Nancy 1, 1994. http://www.theses.fr/1994NAN10054.
Повний текст джерелаQureshi, Muhammad Yasser. "Development of techniques for detection and dissolution enhancement of mineral deposits in petroleum pipelines using ultrasound." Thesis, Robert Gordon University, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.289087.
Повний текст джерелаWong, Wayne A. "Techniques utilizing memory reference characteristics for improved performance /." Thesis, Connect to this title online; UW restricted, 2002. http://hdl.handle.net/1773/6934.
Повний текст джерелаParker, Kevin. "An on-chip trimming technique for CMOS voltage references." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp04/mq20686.pdf.
Повний текст джерелаMacey, Shaun Richard. "Optical fibre characterisation with particular reference to computer modelling techniques." Thesis, University of Leeds, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.305620.
Повний текст джерелаAktug, Irem. "Algorithmic Verification Techniques for Mobile Code." Doctoral thesis, Stockholm : Datavetenskap och kommunikation, Kungliga Tekniska högskolan, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4897.
Повний текст джерелаIbrahim, Hani A. M. "Applied geomorphology in Northeast Egypt with special reference to ground problems and application of remote sensing." Thesis, University of Nottingham, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.328925.
Повний текст джерелаCotterman, Turner. "Enhanced techniques to plan rural electrical networks using the Reference Electrification Model." Thesis, Massachusetts Institute of Technology, 2017. http://hdl.handle.net/1721.1/111229.
Повний текст джерелаThis electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.
Cataloged from student-submitted PDF version of thesis.
Includes bibliographical references (pages 101-104).
Although there have recently been many significant digital and technical advances in the electric power industry, rural electrification remains a pressing issue in the developing countries around the world. The International Energy Agency estimates that there are 1.2 billion people globally who lack access to electricity. Planning electrical networks to provide energy access to these primarily rural consumers is complicated by the lack of accurate data by electric utilities in these areas and the increased prevalence of microgrids and low-cost individual energy systems which challenges the traditional definition of energy services. Advanced computational planning tools can allow planners and policymakers to take resource constraints, environmental considerations, interactions between off-grid and traditional grid extension projects, and many other factors into account when designing rural electrification policies and plans. The goal of this thesis is to contribute to the development and application of the Reference Electrification Model (REM), a decision support tool which can help planners design optimal electrical networks for rural electrification purposes. In this thesis, I develop the functionalities of REM through several case studies. I also address the topics of estimating the electrification status of buildings and calculating the cost of upstream network reinforcements due to new load additions in the system. This research emphasizes the need for computational tools like REM to develop both feasible network designs as well as viable energy policies and regulations in order to advance efforts related to rural electrification and energy access around the world.
by Turner Cotterman.
S.M. in Technology and Policy
Hilton, C. M. "The nature and status of the human mind in the writings of Joseph Conrad considered with reference to contemporary thought." Thesis, University of Oxford, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.384764.
Повний текст джерелаAlfarwy, Loubna. "La didactique du Fos en Syrie : enjeux et perspectives." Thesis, Montpellier 3, 2017. http://www.theses.fr/2017MON30094/document.
Повний текст джерелаResearch performed since the twenties in the field of didactics of foreign languages, helped the rise of a certain audience with specific requests in professional language. That gave rise to a domain, which is composed of an important diversity of contexts and publics called "French for Specific Purposes". Teachers and researchers are brought to create specific methodological approach, to help this audience gain specific linguistic skills.This thesis aims at bringing elements of answer to the students of the syrian scientific colleges, particularly to those of the Faculty of Health Sciences. Our purpose is to identify the real needs of the latter, taking into account peculiarities of their domain and to conceive teacher-training frame of reference allowing them to develop oral and written comprehension and expression skills
Mostafa, Assi S. "Problems of special-purpose English-Persian lexicography with particular reference to computer techniques." Thesis, University of Exeter, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.330194.
Повний текст джерелаSchafer, Wendy Ann. "Supporting Spatial Collaboration: An Investigation of Viewpoint Constraint and Awareness Techniques." Diss., Virginia Tech, 2004. http://hdl.handle.net/10919/11148.
Повний текст джерелаPh. D.
Jia, Yabo. "Numerical simulation of steady states associated with thermomechanical processes." Thesis, Lyon, 2020. http://www.theses.fr/2020LYSEE007.
Повний текст джерелаIn the numerous thermomechanical manufacturing processes such as rolling, welding, or even machining involve either moving loads with respect to the fixed material or moving material with respect to fixed loads. In all cases, after a transient regime which is generally quite short, the thermal, metallurgical, and mechanical fields associated with these processes reach a steady state. The search for these stationary states using the classical finite element method requires the implementation of complex and expensive models where the loads move with respect to the material (or vice versa). The steady-state simulation in one increment has been the subject of much researches over the past thirty years. Methods are now available and some are integrated into calculation codes commercial. Thus, a so-called Moving Reference Frame method proposed by various authors is available in the SYSWELD software. This method makes it possible to calculate the steady-state of thermal, metallurgical, and mechanical states associated with a welding process, by solving a thermal diffusion-convection problem in thermal-metallurgy and by integrating, in mechanics, the constitutive equations of the material along the streamline. Moreover, this method has been used successfully in many applications, it nevertheless has some limitations. Thus the mesh must be structured and the convergence of computations is generally quite slow. In this thesis, we propose to solve the mechanical problem in a frame linked to the solicitations, by relying on a finite element calculation method based on nodal integration and the SCNI (Stabilized Conforming Numerical Integration) technique. This method allows the use of tetrahedron meshes (or 2D triangles) without encountering a locking problem resulting from the plastic incompressibility associated with the von Mises plasticity criterion. Rather than directly calculating the steady-state, the general idea here is to construct the steady-state from a transient analysis by bringing material step by step upstream and by making it exit downstream of a fixed mesh related to the solicitations and of the limited mesh size. The steady-state is therefore only achieved after certain steps of analysis. Apart from a general introduction (Chapter 1) and a state of the art on the existing methods (Chapter 2), we present an approach of simulation of the movement of material within the framework of the classical finite element method on a welding problem (Chapter 3). We also provide relevant thermal boundary conditions for directly calculating the steady-state of temperature distribution. The finite element method based on the nodal integration technique is then described in Chapter 4. The advantages and disadvantages of the method are discussed. The nodal-integration-based finite element is validated by comparing its simulation results with classical finite element methods in large elastoplastic strains, a bending problem, and a thermomechanical simulation of welding. The nodal-integration-based finite element is then developed and applied to simulate material motion (Chapter 5). Three types of movement are considered: translational, circular, and helical. Different methods of field transport are approached and discussed as well as thermomechanical coupling. Perspectives for this work are presented in Chapter 6. The envisaged perspectives aim, on the one hand, to improve the proposed method and on the other hand, to develop the method to simulate other processes. A first application of the material motion method to the simulation of the orthogonal cut is presented there