Log in

Relevant bibliographies by topics / Resolved particles / Dissertations / Theses

To see the other types of publications on this topic, follow the link: Resolved particles.

Dissertations / Theses on the topic 'Resolved particles'

Author: Grafiati

Published: 1 February 2025

Last updated: 19 July 2025

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

Select a source type:

Consult the top 50 dissertations / theses for your research on the topic 'Resolved particles.'

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.

Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.

1

Chadil, Mohamed-Amine. "Penalty methods for the simulation of fluid-solid interactions with various assemblies of resolved scale particles." Thesis, Bordeaux, 2018. http://www.theses.fr/2018BORD0205/document.

Full text

Abstract:

Les simulations des écoulements diphasiques à l’échelle réelle de l’application nécessitent des modèles pour les termes non fermés des équations macroscopiques. Des simulations numériques directes à particule résolue utilisant la méthode de pénalisation visqueuse ont été réalisées afin de mesurer les interactions entre des particules de différentes formes (sphérique et ellipsoïdale) et le fluide porteur à différents régimes d'écoulement (de stokes à l'inertiel). Deux méthodes ont été développées durant cette thèse afin d'extraire les forces hydrodynamiques ainsi que le transfert de chaleur sur

APA, Harvard, Vancouver, ISO, and other styles

2

He, Long. "Study of Fluid Forces and Heat Transfer on Non-spherical Particles in Assembly Using Particle Resolved Simulation." Diss., Virginia Tech, 2018. http://hdl.handle.net/10919/91400.

Full text

Abstract:

Gas-solid flow is fundamental to many industrial processes. Extensive experimental and numerical studies have been devoted to understand the interphase momentum and heat transfer in these systems. Most of the studies have focused on spherical particle shapes, however, in most natural and industrial processes, the particle shape is seldom spherical. In fact, particle shape is one of the important parameters that can have a significant impact on momentum, heat and mass transfer, which are fundamental to all processes. In this study particle-resolved simulations are performed to study momentum an

APA, Harvard, Vancouver, ISO, and other styles

3

Lui, Kwok-on, and 呂國安. "Single particle analysis by time-resolved ICP-MS measurement." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2011. http://hub.hku.hk/bib/B46582630.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Payne, Stephen John. "Critical scattering and time resolved neutron diffraction studies of phase transitions." Thesis, Keele University, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.245355.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Zhang, Hua, and 张华. "Characterization of signal-production processes of single particles inICP by time-resolved ICP-AES." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2011. http://hub.hku.hk/bib/B47150567.

Full text

Abstract:

The research in this thesis aims to characterize the signal-production processes of single particles in the ICP using time-resolved ICP-AES. Signal-production processes, including desolvation, vaporization, atomization, ionization, and diffusion, determine the temporal emission intensity of a single particle. Bimetallic nanoparticles of BaTiO3 (average diameter = 115 nm) were used as test particles. The particles were introduced into the ICP by nebulization of the suspension of the particles in water. As the ion plume of a particle moves up in central channel of the ICP, a temporal emission p

APA, Harvard, Vancouver, ISO, and other styles

6

Benia, Hadj Mohamed. "Spatially resolved optical measurements on supported metal particles and oxide surfaces with the STM." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät I, 2008. http://dx.doi.org/10.18452/15862.

Full text

Abstract:

In der vorliegenden Arbeit wurde mit Hilfe eines Photon-STM die Korrelation zwischen optischen Eigenschaften und der lokalen Morphologie an zwei unterschiedlichen Systemen untersucht. Hierfür wurden zum einem oxidgetragene Ensemble von Silber-Partikeln präpariert, wobei sowohl die Partikelform (Kuppel- und Scheibenform) als auch die deponierte Partikeldichte variiert werden konnte. Neben der Präparation solcher Partikel auf Al10O13/NiAl, konnten sphärische Silber-Kolloide geordnet, als auch ungeordnet auf HOPG aufgebracht und untersucht werden. Dabei zeigte sich, dass das Verhältnis von Höhen

APA, Harvard, Vancouver, ISO, and other styles

7

Tufano, Giovanni Luigi [Verfasser], and Andreas [Akademischer Betreuer] Kronenburg. "Fully-resolved simulations of ignition and combustion of single coal particles and coal particle clouds / Giovanni Luigi Tufano ; Betreuer: Andreas Kronenburg." Stuttgart : Universitätsbibliothek der Universität Stuttgart, 2021. http://d-nb.info/123911608X/34.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

Shingler, Taylor, and Taylor Shingler. "Investigations of Physicochemical Properties of Size-Resolved, Subsaturated, Atmospheric Aerosol Particles: Instrument Development, Field Measurements, and Data Analysis." Diss., The University of Arizona, 2016. http://hdl.handle.net/10150/620958.

Full text

Abstract:

Aerosol particle properties and their impact on air quality, clouds, and the hydrologic cycle remain a critically important factor for the understanding of our atmosphere. Particle hygroscopic growth leads to impacts on direct and indirect radiative forcing properties, the likelihood for particles to act as cloud condensation nuclei, and aerosol-cloud interactions. Current instruments measuring hygroscopic growth have a number of limitations, lacking either the ability to measure size-resolved particles or process samples at a fast enough resolution to be suitable for airborne deployment. Adva

APA, Harvard, Vancouver, ISO, and other styles

9

Shrestha, Kristina. "Time-Resolved Temperature Measurements and Thermal Imaging using Nano-Thermometers in Different Environments." Ohio University / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1593706274306985.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Chan, Alan Jenkin. "3D Time-Resolved Hetero-Coagulation of Soft Latex and Hard Colloidal Particles and the Structuration of the Resulting Gel Network." Thesis, Université Paris-Saclay (ComUE), 2015. http://www.theses.fr/2015SACLS026.

Full text

Abstract:

Le caoutchouc naturel (NR pour Natural Rubber) est une matière première indispensable à la fabrication de milliers de produits !Le choix du latex naturel tient principalement à ses propriétés physico-chimiques intrinsèques bien supérieures à celles des latex synthétiques. Industriellement, le NR est cependant rarement utilisé seul mais associé à des particules de renfort, appelées charges, pour former un matériau composite aux propriétés mécaniques grandement améliorées en particulier la résistance à l’usure.Des études récentes ont mis en évidence que la méthode conventionnelle consistant à in

APA, Harvard, Vancouver, ISO, and other styles

11

Ojo, Anthony Oladeji. "A new laser-based technique for simultaneous time-resolved point measurements of flow temperature and velocity using thermographic phosphor tracer particles." Thesis, Imperial College London, 2017. http://hdl.handle.net/10044/1/62813.

Full text

Abstract:

Turbulent flows involving heat transfer or chemical reactions are important processes in the operation of numerous devices such as engines, and heating and cooling systems. Laser-based measurements of flow temperature and velocity have aided our understanding of the underlying flow physics in such processes. Recently, micron-size thermographic phosphor tracer particles, which are solid materials with temperature-dependent luminescence properties, have been exploited for simultaneous temperature and velocity imaging. However, the measurement strategy, which requires pulsed lasers to illuminate

APA, Harvard, Vancouver, ISO, and other styles

12

Lee, Jason W. L. "Novel developments in time-of-flight particle imaging." Thesis, University of Oxford, 2016. https://ora.ox.ac.uk/objects/uuid:195be057-7ce0-4a15-b639-b08892fde312.

Full text

Abstract:

In the field of physical chemistry, the relatively recently developed technique of velocity-map imaging has allowed chemical dynamics to be explored with a greater depth than could be previously achieved using other methods. Capturing the scattering image associated with the products resulting from fragmentation of a molecule allows the dissociative pathways and energy landscape to be investigated. In the study of particle physics, the neutron has become an irreplaceable spectroscopic tool due to the unique nature of the interaction with certain materials. Neutron spectroscopy is a non-destruc

APA, Harvard, Vancouver, ISO, and other styles

13

Rydefalk, Staffan. "Particle Measurements Using Fluctuations in the Regular Transmittance of Light Through a Particle Dispersion : Concentration and Particles size - Theory, Measurement Principles and Applications for Pulp and Paper Production." Doctoral thesis, KTH, Industriell produktion, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-10639.

Full text

Abstract:

The regular transmittance of light or similar radiation through a flowing suspension of particles fluctuates because of the random occurrence of particles in the beam.In the work presented here, a theory for this fluctuating behaviour with the emphasison dispersions of mm-length slender cylindrical particles having circular crosssections is given. The particles in question are wood pulp fibres, which as a first approximation are considered to have a cylinder shape. Four possible measurementprinciples are described theoretically and experimentally. The four principles are for the measurement of

APA, Harvard, Vancouver, ISO, and other styles

14

Sarakini, Timon. "Image-based characterization of small papermakting particles - method development and particle classification." Thesis, KTH, Tillämpad fysik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-181778.

Full text

APA, Harvard, Vancouver, ISO, and other styles

15

Shimizu, Yuma. "Enhanced Particle Methods with Highly-Resolved Phase Boundaries for Incompressible Fluid Flow." Kyoto University, 2019. http://hdl.handle.net/2433/244528.

Full text

APA, Harvard, Vancouver, ISO, and other styles

16

Seltz, Andréa. "Application of deep learning to turbulent combustion modeling of real jet fuel for the numerical prediction of particulate emissions Direct mapping from LES resolved scales to filtered-flame generated manifolds using convolutional neural networks Solving the population balance equation for non-inertial particles dynamics using probability density function and neural networks: application to a sooting flame." Thesis, Normandie, 2020. http://www.theses.fr/2020NORMIR08.

Full text

Abstract:

Face à l'urgence climatique, l’efficacité énergétique et la réduction des émissions polluantes est devenue une priorité pour l'industrie aéronautique. La précision de la modélisation des phénomènes physicochimiques joue un rôle critique dans qualité de la prédiction des émissions de suie et des gaz à effet de serre par les chambres de combustion. Dans ce contexte, des méthodes d’apprentissage profond sont utilisées pour construire des modélisations avancées des émissions de particules. Une méthode automatisée de réduction et d’optimisation de la cinétique chimique d’un combustible aéronautique

APA, Harvard, Vancouver, ISO, and other styles

17

Koch, Bernd. "Angular resolved measurements of particle and energy fluxes to surfaces in magnetized plasmas." Doctoral thesis, [S.l. : s.n.], 2004. http://deposit.ddb.de/cgi-bin/dokserv?idn=973051116.

Full text

APA, Harvard, Vancouver, ISO, and other styles

18

Klinkenberg, Joy. "Transition in Particle-laden Flows." Doctoral thesis, KTH, Stabilitet, Transition, Kontroll, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-133303.

Full text

Abstract:

This thesis presents the study of laminar to turbulent transition of particle laden flows. When a flow becomes turbulent, the drag increases one order of magnitude compared to a laminar flow, therefore, much research is devoted to understand and influence the transition. Previous research at the Linne Flow Centre at KTH has concentrated on the understanding of the bypass transition process of single-phase fluids. Though there are still questions, the principles of this process are now, more or less, known. However, little is known of the influence of particles on transition. While experiments

APA, Harvard, Vancouver, ISO, and other styles

19

Schneiders, Lennart [Verfasser]. "Particle-Resolved Analysis of Turbulent Multiphase Flow by a Cut-Cell Method / Lennart Schneiders." München : Verlag Dr. Hut, 2017. http://d-nb.info/1135597065/34.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

Xu, Qian, and Qian Xu. "Time-Resolved Particle Image Velocimetry Measurements of the 3D Single-Mode Richtmyer-Meshkov Instability." Thesis, The University of Arizona, 2016. http://hdl.handle.net/10150/623084.

Full text

Abstract:

The Richtmyer-Meshkov Instability (RMI) (Commun. Pure Appl. Math 23, 297-319, 1960; Izv. Akad. Nauk. SSSR Maekh. Zhidk. Gaza. 4, 151-157, 1969) occurs due to an impulsive acceleration acting on a perturbed interface between two fluids of different densities. In the experiments presented in this thesis, single mode 3D RMI experiments are performed. An oscillating speaker generates a single mode sinusoidal initial perturbation at an interface of two gases, air and SF6. A Mach 1.19 shock wave accelerates the interface and generates the Richtmyer-Meshkov Instability. Both gases are seeded with pro

APA, Harvard, Vancouver, ISO, and other styles

21

Mei, Nanxuan. "Characterization of Stainless Steel Welding Fume Particles : Influence of Stainless Steel Grade, Welding Parameters and Particle Size." Thesis, KTH, Materialvetenskap, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-189203.

Full text

Abstract:

Welding is a widely used method to join two pieces of stainless steel. Since it produces a large amount of fume during the process, it can cause adverse health effects. The welding fume particles contain many elements. Among them Cr, Mn and Ni are of concern. These three elements can cause diseases if inhaled by humans, especially Cr(VI). In this project, welding fume particles are collected during welding of different stainless steel grades (austenitic AISI 304L and duplex LDX2101). Furthermore, different welding types (manual metal arc welding and metal active gas welding), shielding gas (MI

APA, Harvard, Vancouver, ISO, and other styles

22

Butaye, Edouard. "Modélisation et simulations résolues d'écoulement fluide-particules : du régime de Stokes aux lits fluidisés anisothermes." Electronic Thesis or Diss., Perpignan, 2024. http://www.theses.fr/2024PERP0029.

Full text

Abstract:

Les centrales solaires à tour utilisent le flux solaire concentré pour chauffer un fluide caloporteur et générer de l'électricité grâce à un cycle thermodynamique. Pour augmenter le rendement de conversion thermique/électrique, on cherche à augmenter la température de sortie du récepteur à au moins 800°C. Une alternative aux fluides conventionnels réside dans l'utilisation de particules fluidisées par de l'air pour ainsi augmenter la température de travail et maximiser le transfert de chaleur pariétal. Les particules solides utilisées peuvent supporter des températures dépassant les 1000°C san

APA, Harvard, Vancouver, ISO, and other styles

23

Vogt, Carsten. "Ultrafine particles in concrete : Influence of ultrafine particles on concrete properties and application to concrete mix design." Doctoral thesis, KTH, Betongbyggnad, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-12161.

Full text

APA, Harvard, Vancouver, ISO, and other styles

24

Bäckebo, Markus. "The influence of particle size distribution on bio-coal gasification rate as related to packed beds of particles." Thesis, Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-79084.

Full text

Abstract:

This thesis is a part of a collaboration between Höganäs AB and Luleå University of Technology, aiming at replacing fossil process coal with bio-coal in their sponge iron process. The difference in gasification reactivity, i.e. reaction rate, between fossil coals and bio-coals is the major challenge in the endeavor to decrease the climate impact of the existing process. The goal of this thesis is to develop a model of reaction rate for bio-coals in relation to particle size distribution. Different particle size distributions were combined and tested to see how that affects the effective reacti

APA, Harvard, Vancouver, ISO, and other styles

25

Hussain, Mian M. "Time-Resolved Analysis of Circulation Control over Supercritical Airfoil using Digital Particle Image Velocimetry (DPIV)." Thesis, Virginia Tech, 2004. http://hdl.handle.net/10919/40538.

Full text

Abstract:

Active pneumatic flow control methods as applied to aerospace applications have shown noteworthy improvements in lift compared to traditional means. The General Aviation Circulation Control (GACC) concept currently under investigation at NASAâ s Langley Research Center (LaRC) is an attempt at addressing some of the fundamental obstacles related to the successful development and implementation of such techniques. The primary focus of research in the field of high lift pneumatic devices is to investigate ways of obtaining significant improvements in the lift coefficient without resorting to mov

APA, Harvard, Vancouver, ISO, and other styles

26

Niaki, Seyed Reza Amini. "Effects of inter particle friction on the meso-scale hydrodynamics of dense gas-solid fluidized flows." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/18/18147/tde-10122018-165927/.

Full text

Abstract:

Gas-solid fluidized bed reactors are widely applied in chemical and energy industries, and their design and scale-up are virtually empirical, extremely expensive and time consuming. This scenario has motivated the development of alternative theoretical tools, and two-fluid modeling, where gas and particulate are both treated as interpenetrating continuum phases, has appeared as a most promising approach. Owing to the large domains to be resolved in real-scale fluidized bed reactors, only filtered modeling approaches are feasible, and closure models become necessary to recover sub-grid effects

APA, Harvard, Vancouver, ISO, and other styles

27

Larsson, Andreas. "Real-Time Persistent Mesh Painting with GPU Particle Systems." Thesis, Linköpings universitet, Informationskodning, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-138145.

Full text

Abstract:

Particle systems are used to create visual effects in real-time applications such as computer games. However, emitted particles are often transient and do not leave a lasting impact on a 3D scene. This thesis work presents a real-time method that enables GPU particle systems to paint meshes in a 3D scene as the result of particle collisions, thus adding detail to and leaving a lasting impact on a scene. The method uses screen space collision detection and a mapping from screen space to texture space of meshes to determine where to apply paint. The method was tested for its time complexity and

APA, Harvard, Vancouver, ISO, and other styles

28

Berggren, Jonas. "Engineering of Pharmaceutical Particles : Modulation of Particle Structural Properties, Solid-State Stability and Tabletting Behaviour by the Drying Process." Doctoral thesis, Uppsala University, Department of Pharmacy, 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-3353.

Full text

Abstract:

<p>Relationships between stresses during the drying process, particle structural and functional properties, and particle engineering by the drying process were addressed in this thesis. In the first part, the importance of the drying phase and the effect of the drying rate on the intragranular porosity of microcrystalline cellulose pellets were investigated. Differences in porosities of dried pellets could be explained by liquid-related differences in densification during convective drying rather than by differences in densification during wet agglomeration. An increased drying rate gave more

APA, Harvard, Vancouver, ISO, and other styles

29

Wahlström, Jens. "Towards a simulation methodology for predictionof airborne wear particles from disc brakes." Licentiate thesis, KTH, Machine Design (Div.), 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-11044.

Full text

Abstract:

<p>During braking, both the rotor and the pads in disc brakes are worn. Since disc brakes are not sealed, some of the wear particles generated can become airborne. Several studies have found an association between adverse health effects and the concentration of particles in the atmosphere, so it is of interest to improve our knowledge of the airborne wear particles generated by disc brakes. However, in field tests it is difficult to distinguish these particles from others in the surrounding environment, so it may be preferable to use laboratory test stands and/or simulation models to study the

APA, Harvard, Vancouver, ISO, and other styles

30

Wahlström, Jens. "Towards a simulation methodology for prediction of airborne wear particles from disc brakes." Licentiate thesis, KTH, Maskinkonstruktion (Avd.), 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-11044.

Full text

Abstract:

During braking, both the rotor and the pads in disc brakes are worn. Since disc brakes are not sealed, some of the wear particles generated can become airborne. Several studies have found an association between adverse health effects and the concentration of particles in the atmosphere, so it is of interest to improve our knowledge of the airborne wear particles generated by disc brakes. However, in field tests it is difficult to distinguish these particles from others in the surrounding environment, so it may be preferable to use laboratory test stands and/or simulation models to study the am

APA, Harvard, Vancouver, ISO, and other styles

31

Klinkenberg, Joy. "Stability analysis of channel flow laden with small particles." Licentiate thesis, KTH, Stabilitet, Transition, Kontroll, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-42271.

Full text

Abstract:

This thesis deals with the stability of particle laden flows. Both modal and non-modal linear analyses have been performed on two-way coupled particleladen flows, where particles are considered spherical, solid and either heavy or light. When heavy particles are considered, only Stokes drag is used as interaction term. Light particles cannot be modeled with Stokes drag alone, therefore added mass and fluid acceleration are used as additional interaction forces. The modal analysis investigates the asymptotic behavior of disturbances on a base flow, in this thesis a pressure-driven plane channel

APA, Harvard, Vancouver, ISO, and other styles

32

Rosén, Tomas. "The influence of inertia on the rotational dynamics of spheroidal particles suspended in shear flow." Licentiate thesis, KTH, Mekanik, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-143663.

Full text

Abstract:

Dispersed particle flows occur in many industrial, biological and geophysical applications. The knowledge of how these flow behave can for example lead to improved material processes, better predictions of vascular diseases or more accurate climate models. These particle flows have certain properties that depend on single particle motion in fluid flows and especially how they are distributed both in terms of spatial position and, if they are non-spherical, in terms of orientation. Much is already known about the motion of perfectly spherical particles. For non-spherical particles, apart from t

APA, Harvard, Vancouver, ISO, and other styles

33

Csontos, Botond. "Development of a method to measure “soft particles” in the fuel." Thesis, KTH, Skolan för kemivetenskap (CHE), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-206547.

Full text

Abstract:

As environmental awareness raises the expectations to reduce emission of modern diesel engines are growing as well. Fuel diversity and the advanced injector systems requires even more attention on an ever existing problem which is called nozzle hole fouling. Recent literature and observations at Scania indicate the phenomena is connected to fuel filter plugging caused by metal carboxyl contaminants through the formation of “soft particles”. This report begins with a literature review about the nature of agglomerates in biodiesel. Followed by the evaluation of six particle sizing equipment. Thi

APA, Harvard, Vancouver, ISO, and other styles

34

RESSEGUIER, CORINNE. "Distributions energetiques resolues angulairement de particules emises lors d'un processus de pulverisation." Paris 11, 1992. http://www.theses.fr/1992PA112249.

Full text

Abstract:

Le travail effectue dans cette these se situe dans la continuite d'une etude portant sur la comprehension des phenomenes physiques mis en jeu lors de l'interaction ion-surface. Une application directe de cette etude consiste a chercher a ameliorer les qualites electriques et cristallines de couches minces deposees par pulverisation ionique. Le travail qui fait l'objet de ce memoire, porte sur les distributions energetiques resolues angulairement des particules rapides emises par la cible pulverisee. Un dispositif experimental original permettant l'acquisition de ces distributions a ete realise

APA, Harvard, Vancouver, ISO, and other styles

35

Zhang, Zailan. "Electronic structures, quasi-particle and gap dynamics in copper oxides superconductors using Time and Angle Resolved Photoemission Spectroscopy." Thesis, Paris 6, 2017. http://www.theses.fr/2017PA066126/document.

Full text

Abstract:

Les supraconducteurs à base d'oxyde de cuivre ont fait l'objet d'études approfondis mais ils restent toujours au centre de nombreux débats. Après 30 années de recherche, certaines questions scientifiques ont été éclairées, alors que d'autres restent controversées. L'évolution du paramètre d'ordre supraconducteur avec la température et le dopage en est un cas exemplaire. Dans cette thèse nous décrivons notre étude systématique de supraconducteurs à haute temperature critique par Angle Resolved PhotoEmission Spectroscopy (ARPES: Spectroscopie de photoémission résolue en angle) et par ARPES resol

APA, Harvard, Vancouver, ISO, and other styles

36

Zhang, Zailan. "Electronic structures, quasi-particle and gap dynamics in copper oxides superconductors using Time and Angle Resolved Photoemission Spectroscopy." Electronic Thesis or Diss., Paris 6, 2017. https://accesdistant.sorbonne-universite.fr/login?url=https://theses-intra.sorbonne-universite.fr/2017PA066126.pdf.

Full text

Abstract:

Les supraconducteurs à base d'oxyde de cuivre ont fait l'objet d'études approfondis mais ils restent toujours au centre de nombreux débats. Après 30 années de recherche, certaines questions scientifiques ont été éclairées, alors que d'autres restent controversées. L'évolution du paramètre d'ordre supraconducteur avec la température et le dopage en est un cas exemplaire. Dans cette thèse nous décrivons notre étude systématique de supraconducteurs à haute temperature critique par Angle Resolved PhotoEmission Spectroscopy (ARPES: Spectroscopie de photoémission résolue en angle) et par ARPES resol

APA, Harvard, Vancouver, ISO, and other styles

37

Andrea, Bergqvist. "Coating fine particles." Thesis, Uppsala universitet, Institutionen för kemi - Ångström, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-235233.

Full text

Abstract:

Controlled release of an active is used in many applications. An example is drug delivery were it is desirable to release the active substance close to the target. In paints can anti-mold substances be encapsulated and released slowly during a long time which can extend the lifetime of the paint. This work investigated a coating process of loaded particles with as low leakage of the active substance as possible. It was also studied if the coating process was scalable. The particles in use were porous silica that was coated with sodium dodecyl sulphate (SDS), polyethyleneimine (PEI) and tetraet

APA, Harvard, Vancouver, ISO, and other styles

38

Grissino, Alan S. (Alan Scott) 1971. "Combined dual emission laser induced fluorescence and particle image velocimetry to resolve temperature and velocity." Thesis, Massachusetts Institute of Technology, 2000. http://hdl.handle.net/1721.1/89345.

Full text

APA, Harvard, Vancouver, ISO, and other styles

39

Hubble, David Owen. "An experimental investigation of the mechanism of heat transfer augmentation by coherent structures." Diss., Virginia Tech, 2011. http://hdl.handle.net/10919/26784.

Full text

Abstract:

The mechanism by which convective heat transfer is augmented by freestream turbulence in the stagnation region was studied experimentally. Previous work has suggested that the primary mechanism for the observed augmentation is the amplification of vorticity into strong vortices which dominate the flow field near the surface. Therefore, two separate experimental investigations were performed to further study this phenomenon. In the first, the spatiotemporal convection from a heated surface was measured during the normal collision of a vortex ring. The convection was observed to increase dramati

APA, Harvard, Vancouver, ISO, and other styles

40

Gifford, Andrew R. "The Physical Mechanism of Heat Transfer Augmentation in Stagnating Flows Subject to Freestream Turbulence and Related Studies." Diss., Virginia Tech, 2008. http://hdl.handle.net/10919/26097.

Full text

Abstract:

The mechanism of heat transfer augmentation due to freestream turbulence in classic Hiemenz stagnation flow was studied experimentally for the first time using time-resolved digital particle image velocimetry (TRDPIV) and a new thin film heat flux sensor called the Heat Flux Array (HFA). Unique measurements of simultaneous, time-resolved velocity and surface heat flux data were obtained along the stagnation line on a simple, rectangular flat plate model mounted in a water tunnel facility. Identification and tracking of coherent structures in the stagnation region lends support to the theory th

APA, Harvard, Vancouver, ISO, and other styles

41

Mihaylova, Dessislava Dimitrova. "Submicron Particles and Inflammation." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for bioteknologi, 2012. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-18590.

Full text

Abstract:

Iron nanoparticles occur naturally in the environment, but their exposure increases dramatically due to the field of nanotechnology and –medicine. It is poorly understood how the intracellular cooperative mechanisms of submicron particles and microorganisms function on mammalian immune system. In this study, superparamagnetic iron oxide (SPIO) submicron particles will be used to benefit the research within environmental diseases, addressing the biocompatibility of these particles. The size-dependent effects in the immune system of two carboxyl coated SPIO particles with stated sizes 100 nm and

APA, Harvard, Vancouver, ISO, and other styles

42

Sengupta, Rohini. "Long-Lived Particles at the FCC-ee." Thesis, Uppsala universitet, Tillämpad kärnfysik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-444329.

Full text

Abstract:

The presented project explores the current theoretical and experimental tools available within the study group for the Future Circular Collider (FCC) with focus on the electron-positron collider. The aim of the study is to evaluate the current frameworks used for simulation, and investigate the possibility of simulating long-lived particles, that could be dark matter candidates, through them. Pythia cards were run through the framework of Delphes and several different software packages were studied on the journey through the work. It was found that the current framework reconstructs the masses

APA, Harvard, Vancouver, ISO, and other styles

43

Bonner, Maxwell Scotland. "Characterization of composite broad band absorbing conjugated polymer nanoparticles using steady-state, time-resolve and single particle spectroscopy." Doctoral diss., University of Central Florida, 2011. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/4741.

Full text

Abstract:

As the global economy searches for reliable, inexpensive and environmentally friendly renewable energy resources, energy conservation by means of photovoltaics has seen near exponential growth in the last decade. Compared to state-of-the-art inorganic solar cells, organic photovoltaics (OPVs) composed of conjugated polymers are particularly interesting because of their processability, flexibility and the potential for large area devices at a reduced fabrication cost. It has been extensively documented that the interchain and intrachain interactions of conjugated polymers complicate the fundame

APA, Harvard, Vancouver, ISO, and other styles

44

Wehinger, Gregor Dionys [Verfasser], Matthias [Akademischer Betreuer] Kraume, Matthias [Gutachter] Kraume, and Claude Franklin [Gutachter] Goldsmith. "Particle-resolved CFD simulations of catalytic flow reactors / Gregor Dionys Wehinger ; Gutachter: Matthias Kraume, Claude Franklin Goldsmith ; Betreuer: Matthias Kraume." Berlin : Technische Universität Berlin, 2016. http://d-nb.info/1156181887/34.

Full text

APA, Harvard, Vancouver, ISO, and other styles

45

Audureau, P. "Distributions energetiques resolues angulairement des particules emise lors d'un processus de pulverisation par faisceau d'ions." Paris 11, 1997. http://www.theses.fr/1997PA112417.

Full text

Abstract:

Les travaux rapportes dans le present memoire portent sur la comprehension des phenomenes physiques mis en jeu lors de l'interaction ion/solide. L'objectif principal est, au travers de l'analyse energetique resolue angulairement de l'emission ionique secondaire, de caracteriser les divers types de particules ionisees et de determiner les mecanismes correspondants. Dans cette optique, nous avons aussi cherche a comparer les lois d'emission des particules neutres pulverisees (atomes cibles) et des atomes de gaz rare reemis avec les lois d'emission de ces ions secondaires. L'etude menee sur les i

APA, Harvard, Vancouver, ISO, and other styles

46

Zackrisson, Samuel. "Suspensions with small, spherical particles." Thesis, KTH, Numerisk analys, NA, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-168014.

Full text

Abstract:

Feasibly computable analytic solutions for systems of many particles in fluid dynamics and electrostatics are few and far-between. Simulations and numerical approximations are essential to studying these systems. This is commonly done without directly calculating the interacting field between particles. In this report a method utilizing the spectral accuracy of the Fourier transform is studied to calculate particle velocities via the surrounding fluid velocity field. The method is applied to a periodic cube of a suspension of small, spherical particles sedimenting in a fluid affected by gravit

APA, Harvard, Vancouver, ISO, and other styles

47

Preuss, Frida, Julia Asp, Sofia Larsson, and Stephanie Kylington. "Separation of Nanoporous Silica Particles." Thesis, KTH, Skolan för kemi, bioteknologi och hälsa (CBH), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-277106.

Full text

Abstract:

In this study a sample of particles in a size region of 0.05-10 μm were run through a centrifugation process with the ambition to make it monodisperse. The product requirements were stated as follows, particles within the size range of 2 to 3.8 μm should be isolated and separated from the sample with a D90/D10 < 1.4 where the D90/D50/D10 values should be approximately 3.8 μm/2.5 μm/2 μm. It was found that two layers of sucrose with a 50/50 volume distribution of 45w% sucrose solution and 60w% sucrose solution respectively, was the most efficient density gradient arrangement for separation o

APA, Harvard, Vancouver, ISO, and other styles

48

Axebrink, Emma. "Automatic Classification of Snow Particles." Thesis, Luleå tekniska universitet, Institutionen för system- och rymdteknik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-86017.

Full text

Abstract:

The simplest form of a snow particle is a hexagonal prism which can grow into a stellar crystal by growing branches from the six corners of the prism. The snow particle is affected by the temperature and supersaturation in the air, giving its unique form. Manual classification of snow particles based on shape is tedious work. Convolutional Neural Network (CNN) can therefor be of great assistance and are common in automatic image processing. From a data set consisting of 3165 images sorted into 15 shape classes, a sub set of 2193 images and 7 classes was used. The selected classes had the highe

APA, Harvard, Vancouver, ISO, and other styles

49

Knape, Marja. "Particle Zoo." Thesis, Kungl. Konsthögskolan, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kkh:diva-96.

Full text

APA, Harvard, Vancouver, ISO, and other styles

50

Dilanson, Nadea. "Halfsphere Derivatisation of Magnetic Micro Particles." Thesis, Mälardalen University, Mälardalen University, Department of Biology and Chemical Engineering, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-1415.

Full text

Abstract:

<p><strong>Abstract</strong></p><p> </p><p>This exam project is an effort to derivatize one side of magnetic beads with one kind of molecule , and another one on the opposite side. First the surface of the sphere is loaded with a suitable linker with, e.g. amino or hydroxyl groups. In the second step, these groups are derivatized with a photosensitive protecting group such as Nitroveratryloxycarbonyl. In the third step, the particles are placed on a surface and then irradiated with UltraViolet light (320 nm) from above, which will cleave off the Nitroveratryloxycarbonyl on the upper half, whi

APA, Harvard, Vancouver, ISO, and other styles

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!