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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
201

Development and validation of early prediction for neurological outcome at 90 days after return of spontaneous circulation in out-of-hospital cardiac arrest / 自己心拍再開後の院外心停止における90日後神経学的転帰の早期予後予測の開発と検証

Nishioka, Norihiro 23 March 2022 (has links)
京都大学 / 新制・課程博士 / 博士(医学) / 甲第23798号 / 医博第4844号 / 新制||医||1058(附属図書館) / 京都大学大学院医学研究科医学専攻 / (主査)教授 佐藤 俊哉, 教授 黒田 知宏, 教授 永井 洋士 / 学位規則第4条第1項該当 / Doctor of Medical Science / Kyoto University / DFAM
202

Three-dimensionality in Musical Form : Parameters for Musical Form Based on the Ancient Structures of Myth

Ahovaara, Arttu January 2024 (has links)
This thesis explores musical form and examines the possible relationship between structures of mythology and musical form, especially with modern musical parameters in mind, all based on the ancient structures of myth. One method for working with musical form is also presented, which attempts to show how musical material can be transformed in the confines of this form template. The approach taken to study musical form and to understand and manipulate it in composition work in this thesis attempts to find patterns for musical form outside of established musical concepts. This thesis explores the structure of ancient mythology collected by the American writer Joseph Campbell and draws conclusions between that and musical form, which attempts to showcase the relations between traditional musical forms and ancient structures of myth, and also presents methods of working with these premises in contemporary music.
203

Untersuchung der Elektronendichte von Antibiotika in Bezug auf pharmakologische Wirksamkeit / Electron-density study of antibiotics with reference to pharmacological efficacy

Holstein, Julian Jacob 09 September 2011 (has links)
No description available.
204

Toepasbare aspekte uit breinnavorsingsliteratuur op klavieronderrig vir beginners met spesifieke verwysing na die heelbreinmodel van Ned Herrmann (Afrikaans)

Van Niekerk, Theresa 11 August 2008 (has links)
'n Omvattende literatuurstudie oor die funksionering en ontwikkeling van die brein is onderneem ten einde toepasbare aspekte te identifiseer vir die verbetering van aanvangsonderrig vir pianiste. Die oorsig behels die volgende: <ul> <li>Die benutting van die jong brein se vermoë tot plastiese verandering as gevolg van stimulasie</li> <li>Die belangrikheid van vroeë aanvangsouderdom vir klavieronderrig</li> <li>Die bestaan van 'n geleentheidsvensterperiode vir die ontwikkeling van optimale Prestasie</li> <li>Die ontwikkeling van absolute toonhoogtesin as gevolg van vroeë aanvangsklavieronderrig</li> <li>Die ontwikkeling van verbeterde tegniese vaardighede as gevolg van vroeë Aanvangsklavieronderrig</li> <li>Die belangrikheid van genoegsame herhaling vir die vaslegging van tegniese vaardigheid en informasie in die langtermyngeheuestore van die brein</li> <li>Interaksie tussen die invloed van omgewingsfaktore en die bydrae van genetiese potensiaal van die individu vir optimale musikale prestasie</li> <li>Die rol en invloed van emosie, chemiese oordragstowwe en hormone op musicale prestasie</li> <li>Groepsmusiekonderrig vir jong kinders</li> <li>Die onderlinge verhouding tussen onderwyser en leerder.</li></ul> Die leerstylmodel van Ned Herrmann vir heelbreinontwikkeling is gebruik om die karaktereienskappe en leerbehoeftes van individue met betrekking tot hul kognitiewe leervoorkeure te bepaal. Vier verskillende benaderings tot aanvangsklavieronderrig is geïdentifiseer. Die geskiktheid van die onderskeie aanvangsbenaderings word teenoor mekaar opgeweeg ten einde te bepaal of 'n spesifieke benadering beter sou pas by leerders met spesifieke leervoorkeure. Wenke word voorsien aan klavieronderwysers oor hoe om onderrig aan leerders met uiteenlopende kognitiewe leerstyle aan te bied. Twee-en-twintig beginnersboeke is evalueer ten opsigte van hul geskiktheid vir gebruik vir leerders met verskillende kognitiewe leervoorkeure. Aanbevelings word gemaak vir die samestelling van 'n ideale beginnersboek wat met sukses vir alle klavierleerders gebruik sal kan word. Die toegevoegde waarde van prelees, duetpartye, nabootsspel, improvisasie en illustrasies vir beginnersboeke is ondersoek. Aspekte soos geordende aanbieding van konsepte en die noodsaak vir uitgebreide herhaling vir die vaslegging van die informasie en tegniese vaardighede in die langtermyngeheuestore van die brein word beklemtoon. / Thesis (DMus)--University of Pretoria, 2008. / Music / unrestricted
205

Vývoj a testování zařízení pro absolutní kalibraci GNSS antén / Development and testing of device for absolute GNSS antenna calibration

Komárek, Josef January 2016 (has links)
The purpose of this diploma thesis is testing motion of the device for GNSS antenna calibration according to added weight to the device’s transom. First part of this thesis is devoted to introduction into GNSS antenna calibration problematics. The thesis deals further with development of the software used to process photogrammetric images that have been taken during testing measurement. The rest of the thesis is focused to process and evaluate the measurement. The result will be implemented into observation model used during calibration measurement. The period, during the device is still, will be corrected according to the result that has been obtained from the measurement.
206

The Henstock–Kurzweil Integral

David, Manolis January 2020 (has links)
Since the introduction of the Riemann integral in the middle of the nineteenth century, integration theory has been subject to significant breakthroughs on a relatively frequent basis. We have now reached a point where integration theory has been thoroughly researched to a point where one has to delve quite deep into a particular subject in order to encounter open conjectures. In education the Riemann integral has for quite some time been the standard integral in elementary analysis courses and as the complexity of these courses incrementally increase the more general Lebesgue integral eventually becomes the standard integral.  Unfortunately, in the transition from the Riemann integral to the Lebesgue integral there are certain topics of pure theoretical interest which to a certain extent are neglected. This is particularly the case for topics regarding the inverse relationship between differential and integral calculus and the integration of exceedingly complicated functions which for example might be of a highly oscillatory nature. From an applied mathematician's point of view, the partial neglection of these topics in the case of highly problematic functions might be justified in the sense that this theory is unnecessary for modeling most problems that appear in nature. From a theoretician's point of view however this negligence is unacceptable. Consequently, there are alternative integrals which give rise to theories which one can use in an attempt to study these aforementioned topics. An example of such an integral is the Henstock–Kurzweil integral, which can be developed in a rather similar manner to that of the Riemann integral.  In this thesis we will develop the Henstock–Kurzweil integral in order to answer some of the questions which to a certain extent are beyond the scope of the Lebesgue integral while using rather basic proof techniques from complex analysis and measure theory. In addition to that we extended various properties of the Lebesgue integral to the Henstock–Kurzweil integral, in particular when it comes to Lebesgue's fundamental theorem of calculus and the basic convergence theorems of the Lebesgue integral.
207

NaYF4:Yb,Er Upconversion Nanocrystals: Investigating Energy Loss Processes for the Systematic Enhancement of the Luminescence Efficiency

Grauel, Bettina 23 May 2022 (has links)
Aufkonvertierende (upconverting; UC) Nanomaterialien bilden eine neue Klasse nichtlinearer lumineszenter Reporter, die nah-infrarotes (NIR) Anregungslicht in Photonen von höherer Energie umwandeln. Das effizienteste bekannte UC-System bildet hierbei β-NaYF4: 20%Yb(III), 2%Er(III) mikrokristallines Bulkmaterial, für welches UC-Quantenausbeuten (ΦUC) von 10 % berichtet werden, während ΦUC von Nanokristallen (nanocrystals; NC) um mehrere Größenordnungen niedriger sein können. Um die Effizienz von UC-Nanomaterialien zu erhöhen, werden NC üblicherweise mit inerten Schalen versehen. In dieser Arbeit werden mehrere verschiedene Bulkmaterialien spektroskopisch untersucht, um ein Vergleichsmaterial auszuwählen, das als Maßstab für alle folgenden, vergleichbaren Messungen an NC dient. Die Oberfläche von ultrakleinen (3.7±0.5) nm NC wird mit Schalen von bis zu 10 nm Dicke versehen, um die optimale Schalendicke für vollständige Oberflächenpassivierung zu identifizieren, allerdings weisen die Ergebnisse auf eine mögliche Kern-Schale-Durchmischung hin. In einer zweiten Studie werden die unterschiedlichen Dotanden, Er(III) und Yb(III), auf ihre optischen Eigenschaften sowie die Einflüsse von Energietransfer (ET) und von ihrer Umgebung spektroskopisch untersucht. Dabei kann klar zwischen Oberflächeneffekten und oberflächenunabhängigen Volumeneffekten unterschieden werden. Die Ergebnisse werden durch ein einfaches Monte-Carlo-Modell gestützt, durch das die größen- und leistungsdichte-(P-)abhängigen Populierungsdynamiken der strahlenden Banden von Er(III) vorhergesagt werden können. Zuletzt werden durch eine verbesserte Synthesemethode UCNC mit stark verbesserten Lumineszenzeigenschaften hergestellt, mit denen bei vergleichsweise niedrigen P die gleichen ΦUC wie beim Bulkmaterial erreicht werden. Dies liefert einen Einblick in vielfältige Anwendungsmöglichkeiten für UCNC. / Upconversion (UC) nanomaterials are an emerging new class of non-linear luminescent reporters which convert near-infrared (NIR) excitation light into higher-energy photons. The most efficient known UC material is the β-NaYF4: 20%Yb(III), 2%Er(III) bulk (microcrystalline) phosphor with reported UC quantum yields (ΦUC) of 10 %, while ΦUC of nanocrystals (NC) can be several orders of magnitude lower. Strategies to improve the efficiency of UC nanomaterials include surface passivation with inert shells. In this work, several different bulk materials are compared to select one benchmark material for comparisons with NC analyzed with the same measurement techniques. The surface of ultrasmall (3.7 ± 0.5) nm NC is coated with inert shells of up to 10 nm thickness to identify an optimal shell thickness for complete surface passivation, but the results suggest core-shell intermixing. To distinguish between the different dopant ions, Er(III) and Yb(III), and the effect of energy transfer (ET) in a second study, single- and co-doped UCNC are investigated spectroscopically and the influence of their environment is determined thoroughly. Herein, a clear distinction between surface-related and surface-independent, volume-related effects is achieved and the results are emphasized by the use of a simple random walk model which accurately predicts size- and power density (P)-dependent population dynamics of the emissive bands of Er(III). Finally, utilizing an improved synthesis technique, UCNC with enhanced luminescence properties are produced, reaching the same ΦUC as the benchmarked bulk material at reasonably low P, providing an insight into numerous possible applications of UCNC.
208

Absolute and relative generality

Studd, James Peter January 2013 (has links)
This thesis is concerned with the debate between absolutists and relativists about generality. Absolutists about quantification contend that we can quantify over absolutely everything; relativists deny this. The introduction motivates and elucidates the dispute. More familiar, restrictionist versions of relativism, according to which the range of quantifiers is always subject to restriction, are distinguished from the view defended in this thesis, an expansionist version of relativism, according to which the range of quantifiers is always open to expansion. The remainder of the thesis is split into three parts. Part I focuses on generality. Chapter 2 is concerned with the semantics of quantifiers. Unlike the restrictionist, the expansionist need not disagree with the absolutist about the semantics of quantifier domain restriction. It is argued that the threat of a certain form of semantic pessimism, used as an objection against restrictionism, also arises, in some cases, for absolutism, but is avoided by expansionism. Chapter 3 is primarily engaged in a defensive project, responding to a number of objections in the literature: the objection that the relativist is unable to coherently state her view, the objection that absolute generality is needed in logic and philosophy, and the objection that relativism is unable to accommodate ‘kind generalisations’. To meet these objections, suitable schematic and modal resources are introduced and relativism is given a precise formulation. Part II concerns issues in the philosophy of mathematics pertinent to the absolutism/relativism debate. Chapter 4 draws on the modal and schematic resources introduced in the previous chapter to regiment and generalise the key argument for relativism based on the set-theoretic paradoxes. Chapter 5 argues that relativism permits a natural motivation for Zermelo-Fraenkel set theory. A new, bi-modal axiomatisation of the iterative conception of set is presented. It is argued that such a theory improves on both its non-modal and modal rivals. Part III aims to meet a thus far unfulfilled explanatory burden facing expansionist relativism. The final chapter draws on principles from metasemantics to offer a positive account of how universes of discourse may be expanded, and assesses the prospects for a novel argument for relativism on this basis.
209

The Liebherr Intelligent Hydraulic Cylinder as building block for innovative hydraulic concepts

Leutenegger, Paolo, Braun, Sebastian, Dropmann, Markus, Kipp, Michael, Scheidt, Michael, Zinner, Tobias, Lavergne, Hans-Peter, Stucke, Michael 03 May 2016 (has links) (PDF)
We present hereafter the development of the Liebherr Intelligent Hydraulic Cylinder, in which the hydraulic component is used as smart sensing element providing useful information for the system in which the cylinder is operated. The piston position and velocity are the most important signals derived from this new measuring approach. The performance under various load and temperature conditions (measured both on dedicated test facilities and in field in a real machine) will be presented. An integrated control electronics, which is performing the cylinder state processing, additionally allows the synchronized acquisition of external sensors. Providing comprehensive state information, such as temperature and system pressure, advanced control techniques or monitoring functions can be realized with a monolithic device. Further developments, trends and benefits for the system architecture will be briefly analyzed and discussed.
210

THE ACOUSTIC EMISSIONS PRODUCED BY ESCHERICHIA COLI DURING THE GROWTH CYCLE

Cox, Traci Jane 01 January 2014 (has links)
The objective of this study was to determine if acoustic emissions (AE) generated by three strains of Escherichia Coli (5024-parent strain, 8279-mutant strain and 8279-random/unrelated strain) could be used to differentiate each strain during their growth cycle. An acoustic sensor with an operating range of 35 kHz-100 kHz was inserted into the growth vessel and attached to a selected channel to capture AE data. The growth vessel was loaded with 60 ml of tryptic soy broth (TSB) (0.25% fructose) media with alginate (1.1%) or without alginate and inoculated with 1% (108 CFU/ml) of an E. coli strain. The growth vessel was placed in a monitoring chamber and incubated at 32°C for 8-9 h. The AE’s generated by each strain were collected throughout the growth cycle. All strains grown in media with and without alginate generated AE’s within 5 min post inoculation. Strains grown in media without alginate generated stronger (P < 0.0001) absolute energy (ABSE) and higher peak frequencies (PFRQ’s), than in media with alginate. The AE’s generated by strains 5024 and 8237 were stronger and easily distinguished from those generated by strain 8279. Strain 8237 generated 12% stronger ABSE from the 3rd to 8th h and 51% stronger PFRQ intensities than strain 5024 during 0-8 h. However, strain 5024 generated 15% stronger ABSE and 31% higher PFRQ’s during the final hour of growth. Strain 5024 generated the highest PFRQ’s from 5-50 kHz, while strain 8237 generated higher frequencies from 100-500 kHz. Fourteen distinguishable differences (P< 0.05) in generated PFRQ’s, between strains 5024 and 8237, were also observed in every 5 kHz increments from 100-500 kHz. Of these differences, strain 8237 generated higher frequencies within eight of the kHz ranges, while strain 5024 generated higher frequencies within six other kHz ranges. These data suggests that all bacteria may generate different AE’s, thus producing a unique “fingerprint” of sound that will allow for its identification.

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