Log in

Relevant bibliographies by topics / Cryogenic Cooling / Dissertations / Theses

To see the other types of publications on this topic, follow the link: Cryogenic Cooling.

Dissertations / Theses on the topic 'Cryogenic Cooling'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 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 'Cryogenic Cooling.'

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

Ryan, Keith Patrick. "Rapid cryogenic fixation of biological specimens for electron microscopy." Thesis, University of Plymouth, 1991. http://hdl.handle.net/10026.1/2504.

Full text

Abstract:

This thesis describes investigations into cryofixation by the plunge-cooling technique, at ambient pressure. The objective was to characterise coolants which are commonly used for cryofixation, so that the structure and chemistry of biological specimens may be preserved in a more life-like state. The work began with the design of a suitable cooling device. This was developed further into a large test-bed apparatus which was used in both biological and methodological experiments. The large cooling apparatus demonstrated for the first time that ethane was a superior coolant under forced convecti

APA, Harvard, Vancouver, ISO, and other styles

2

Bromiley, Paul Ann. "Development of an adiabatic demagnetisation refrigerator for use in space." Thesis, University College London (University of London), 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.314159.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Foroughi, Parisa. "Design and characterization of an electrohydrodynamic (EHD) micropump for cryogenic spot cooling applications." College Park, Md. : University of Maryland, 2008. http://hdl.handle.net/1903/8100.

Full text

Abstract:

Thesis (Ph. D.) -- University of Maryland, College Park, 2008.<br>Thesis research directed by: Dept. of Mechanical Engineering. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.

APA, Harvard, Vancouver, ISO, and other styles

4

Jensen, Mark. "Energy Process Enabled by Cryogenic Carbon Capture." BYU ScholarsArchive, 2015. https://scholarsarchive.byu.edu/etd/5711.

Full text

Abstract:

Global climate change concerns help shape current environmental regulations, which increasingly seek to reduce or capture CO2 emissions. Methods for capturing CO2 emissions from energy processes have been the focus of numerous studies to provide support for those seeking to reduce the environmental impact of their processes. This research has (1) simulated a baseline case of energy-storing cryogenic carbon capture for implementation on a 550 MWe coal fired power plant, (2) presented a novel cryogenic carbon capture process for removing CO2 from natural gas down to arbitrary levels, (3) present

APA, Harvard, Vancouver, ISO, and other styles

5

Piskorski, Julia Hege. "Cooling, Collisions and non-Sticking of Polyatomic Molecules in a Cryogenic Buffer Gas Cell." Thesis, Harvard University, 2014. http://nrs.harvard.edu/urn-3:HUL.InstRepos:13070052.

Full text

Abstract:

We cool and study trans-Stilbene, Nile Red and Benzonitrile in a cryogenic (7K) cell filled with low density helium buffer gas. No molecule-helium cluster formation is observed, indicating limited atom-molecule sticking in this system. We place an upper limit of 5% on the population of clustered He-trans-Stilbene, consistent with a measured He-molecule collisional residence time of less than \(1 \mu s\). With several low energy torsional modes, trans-Stilbene is less rigid than any molecule previously buffer gas cooled into the Kelvin regime. We report cooling and gas phase visible spectroscop

APA, Harvard, Vancouver, ISO, and other styles

6

Jin, Hyungyu. "Development of Thermoelectric Materials for Cryogenic Cooling andStudy on Magnon and Phonon Heat Transport." The Ohio State University, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=osu1397746215.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Rada, Mihai Catalin. "Electrohydrodynamics (EHD) pumping of liquid nitrogen - application to spot cryogenic cooling of sensors and detectors." College Park, Md. : University of Maryland, 2004. http://hdl.handle.net/1903/212.

Full text

Abstract:

Thesis (Ph. D.) -- University of Maryland, College Park, 2004.<br>Thesis research directed by: Mechanical Engineering. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.

APA, Harvard, Vancouver, ISO, and other styles

8

Kwon, Daniel W. 1980. "Cryogenic heat pipe for cooling high temperature superconductors with application to Electromagnetic Formation Flight Satellites." Thesis, Massachusetts Institute of Technology, 2009. http://hdl.handle.net/1721.1/62966.

Full text

Abstract:

Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 2009.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 195-200).<br>An emerging method of propellant-less formation flight propulsion is the use of electromagnets coupled with reaction wheels. This technique is called Electromagnetic Formation Flight (EMFF). In order to create a large magnetic field necessary for actuating formation flying spacecraft, EMFF uses high temperature superconducting (HTS) wire since it is able to carry a large current at low power. To ach

APA, Harvard, Vancouver, ISO, and other styles

9

Barber, Julien (Julien Victor). "Investigation of cryogenic cooling for a high-field toroidal field magnet used in the SPARC fusion reactor design." Thesis, Massachusetts Institute of Technology, 2018. http://hdl.handle.net/1721.1/118738.

Full text

Abstract:

Thesis: S.M., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2018.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 111-114).<br>Rare Earth Barium Copper Oxide (REBCO) High Temperature Superconducting (HTS) tapes are being considered for the Toroidal Field (TF) magnets of the highly compact, high-field SPARC Version 0 (V0) reactor design. The V0 design is set to operate at magnetic fields as high as 20 T, and operating temperatures ranging from 10-30 K. Due to the increase in range of operating conditions made available throug

APA, Harvard, Vancouver, ISO, and other styles

10

Meiners, Teresa [Verfasser]. "Characterisation of an experiment for sympathetic cooling and coupling of ions in a cryogenic Penning trap / Teresa Meiners." Hannover : Gottfried Wilhelm Leibniz Universität, 2021. http://d-nb.info/1238221947/34.

Full text

APA, Harvard, Vancouver, ISO, and other styles

11

Niemann, Malte [Verfasser]. "Design and commissioning of an experiment for sympathetic cooling and coupling of ions in a cryogenic Penning trap / Malte Niemann." Hannover : Gottfried Wilhelm Leibniz Universität Hannover, 2019. http://d-nb.info/1194158501/34.

Full text

APA, Harvard, Vancouver, ISO, and other styles

12

Koen, Devan. "Investigation of novel cooling methods to enhance aerospace component manufacturing practices." Thesis, Stellenbosch : University of Stellenbosch, 2011. http://hdl.handle.net/10019.1/18058.

Full text

Abstract:

Thesis (MScEng)--Stellenbosch University, 2011.<br>ENGLISH ABSTRACT: The aerospace industry actively pursues innovation, especially in materials and their use in new applications, to improve their aircraft as well as their competitive position. Ti-6Al-4V has been available now for more than 50 years. Yet, in the new generation of aircraft using structural composites, a dramatic increase in the proportion of Ti-6Al-4V will be seen along with emerging application in automotive and chemical industries. This material possesses superior material properties compared to conventional materials su

APA, Harvard, Vancouver, ISO, and other styles

13

Mohammed, Anwaruddin. "ACHIEVING ULTRAFINE GRAINS IN Mg AZ31B-O ALLOY BY CRYOGENIC FRICTION STIR PROCESSING AND MACHINING." UKnowledge, 2011. http://uknowledge.uky.edu/ms_etds/1.

Full text

Abstract:

This thesis presents results from the application of cryogenic cooling on multiple-pass friction stir processing and the subsequent orthogonal machining on friction stir processed and as-received Mg AZ31B-O disks, and shows their combined effects on microstructure and microhardness values. A simple friction stir tool, a specially designed fixture and liquid nitrogen are used to perform multiple-pass friction stir processing experiments on Mg AZ31B-O alloy. The friction stir processed and as-received sheets are then made into disks for the orthogonal machining experiments. This study analyzes t

APA, Harvard, Vancouver, ISO, and other styles

14

Rao, P. Sharath Chandra. "Analysis of fluid circulation in a spherical cryogenic storage tank and conjugate heat transfer in a circular microtube." [Tampa, Fla.] : University of South Florida, 2004. http://purl.fcla.edu/fcla/etd/SFE0000461.

Full text

APA, Harvard, Vancouver, ISO, and other styles

15

Weber, Fabian. "Optical Analysis of the Hydrogen Cooling Film in High Pressure Combustion Chambers." Thesis, Luleå tekniska universitet, Rymdteknik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-76872.

Full text

Abstract:

For performance optimisation of modern liquid cryogenic bipropellant rocket combustion chambers, one component which plays an important role in reducing the wall side heat flux, is the behaviour of the cooling film. At the Institute of Space Propulsion of the German Aerospace Center (DLR) in Lampoldshausen, hot test runs have been performed using the experimental combustion chamber BKM, to investigate the wall side heat flux which is -- among other factors -- dependent on cooling film properties. To gain more insight into the film behaviour under real rocket-like conditions, optical diagnostic

APA, Harvard, Vancouver, ISO, and other styles

16

Wilhelm, Patrick Udo [Verfasser], and Andreas [Akademischer Betreuer] Wolf. "First Studies of Low-Energy Electron Cooling of keV Energy Ion Beams at the Electrostatic Cryogenic Storage Ring CSR / Patrick Udo Wilhelm ; Betreuer: Andreas Wolf." Heidelberg : Universitätsbibliothek Heidelberg, 2019. http://d-nb.info/1191758532/34.

Full text

APA, Harvard, Vancouver, ISO, and other styles

17

Cococcetta, Nicholas Michael. "Investigating Surface Finish, Burr Formation and Tool Wear During Sustainable Machining of 3D Printed Carbon Fiber Reinforced Polymer (CFRP) Composites." Miami University / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=miami1586533608277002.

Full text

APA, Harvard, Vancouver, ISO, and other styles

18

Bance, Peter. "Evaporative cooling of caesium in a TOP trap : prospects for BEC." Thesis, University of Oxford, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.244564.

Full text

APA, Harvard, Vancouver, ISO, and other styles

19

Blake, Robert. "The effects of realistic surface properties on low temperature space observatories." Thesis, Open University, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.262697.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

Backman, Björn. "Future Upgrades of the LHC Beam Screen Cooling System." Thesis, Linköping University, The Department of Physics, Chemistry and Biology, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-7727.

Full text

Abstract:

<p>The topic of this thesis concerns the LHC, the next large particle accelerator at CERN which will start operating in 2007. Being based on superconductivity, the LHC needs to operate at very low temperatures, which makes great demands on the cryogenic system of the accelerator. To cope with the heat loads induced by the particle beam, a beam screen cooled with forced flow of supercritical helium is used.</p><p>There is an interest in upgrading the energy and luminosity of the LHC in the future and this would require a higher heat load to be extracted by the beam screen cooling system. The ob

APA, Harvard, Vancouver, ISO, and other styles

21

Igra, R. M. "An experimental study of heat transfer to cryogenic fluids in high speed rotating thermosyphons." Thesis, University of Southampton, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.384215.

Full text

APA, Harvard, Vancouver, ISO, and other styles

22

Болюх, Володимир Федорович. "Науково-технічні основи створення електромеханічних імпульсних перетворювачів індукційного типу з кріорезистивними обмотками". Thesis, НТУ "ХПІ", 2003. http://repository.kpi.kharkov.ua/handle/KhPI-Press/30142.

Full text

Abstract:

Дисертація на здобуття наукового ступеня доктора технічних наук за спеціальністю 05.09.01 - електричні машини і апарати. - Національний технічний університет «Харківський політехнічний інститут», м . Харків, 2003. Дисертація присвячена проблемі створення електромеханічних імпульсних перетворю вачів індукційного типу з кріорезистивними обмотками, що охолоджуються рідким азотом. Розроблена методика розрахунку кріогенних ЕІПІТ, яка враховує комплекс взаємопов’язаних електричних, магнітних, теплових та механічних процесів з урахуванням нелінійності основ-них параметрів. Визначені основні закономір

APA, Harvard, Vancouver, ISO, and other styles

23

Choi, Bernard. "Thermal interactions of pulsed laser radiation and cryogen spray cooling with skin." Access restricted to users with UT Austin EID Full text (PDF) from UMI/Dissertation Abstracts International, 2001. http://wwwlib.umi.com/cr/utexas/fullcit?p3025203.

Full text

APA, Harvard, Vancouver, ISO, and other styles

24

Hermansson, Henrik. "Kryogen uppgradering av biogas med kyla från värmedriven absorptionskylmaskin." Thesis, Linköping University, Linköping University, Energy Systems, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-17180.

Full text

Abstract:

<p>Detta är ett examensarbete som genomförts hos Göteborg Energi AB och syftar till att utreda omkryogen uppgradering av biogas med fördel kan ske genom att producera nödvändig kyla medvärmedriven absorptionskylmaskin. Göteborg Energi är en av tre parter som tillsammans ska bygga enbiogasanläggning i Lidköping som ska vara i drift 2010. Anläggningen ska producera 30 GWhflytande biogas per år.</p><p>Arbetet utreder om det är fördelaktigt ur ekonomiskt, energimässigt och miljömässigt perspektiv attuppgradera biogas med kryogen teknik med värmeproducerad kyla. En jämförelse görs först medkryogen

APA, Harvard, Vancouver, ISO, and other styles

25

Lucchesi, Christophe. "Design and development of a near-field thermophotovoltaic conversion device." Thesis, Lyon, 2020. http://www.theses.fr/2020LYSEI053.

Full text

Abstract:

Une cellule thermophotovoltaïque (TPV) convertit l’énergie de photons émis par des corps chauds en énergie électrique. Lorsque la distance séparant deux corps rayonnants devient inférieure à la longueur d’onde caractéristique du rayonnement thermique (~10 µm à température ambiante, ~2,3 µm vers 1000°C), le transfert de chaleur radiatif peut s’accroître de plusieurs ordres de grandeur grâce à la contribution des ondes évanescentes. Cette propriété a un intérêt pour la récupération d’énergie en promettant une augmentation de la puissance électrique générée par une cellule TPV lorsqu’elle est pla

APA, Harvard, Vancouver, ISO, and other styles

26

Capelle, Thibault. "Electromechanical cooling and parametric amplification of an ultrahigh-Q mechanical oscillator." Thesis, Sorbonne université, 2020. http://www.theses.fr/2020SORUS045.

Full text

Abstract:

Dans cette thèse, nous avons étudié un système mécanique de très haut facteur de qualité couplé à une cavité micro-onde supraconductrice. Nous présenterons une technique originale de caractérisation des pertes des cavités micro-ondes planaires, ainsi qu’une technique de refroidissement par bande latérale résolue utilisée pour refroidir activement cet oscillateur mécanique à l’aide de la cavité micro-onde. Enfin, nous présenterons des optimisations de cette expérience qui ouvrent la voie au refroidissement de l'oscillateur mécanique dans son état quantique fondamental. Un tel système hybride po

APA, Harvard, Vancouver, ISO, and other styles

27

Ruchi, Sangeetika. "Computational Modeling of Laser Therapy of Port-Wine Stains- Based on Reduced Scattering Method." University of Cincinnati / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1428070493.

Full text

APA, Harvard, Vancouver, ISO, and other styles

28

Bertolaccini, Jonathan. "Modélisation et simulation des écoulements de contre-courant de l'hélium superfluide par la méthode Boltzmann sur réseau." Thesis, Lyon, École normale supérieure, 2015. http://www.theses.fr/2015ENSL1063/document.

Full text

Abstract:

Les propriétés thermiques exceptionnelles de l’hélium superfluide, ou He-II, sont mises à profit pour la réfrigération cryogénique d'installations de forte puissance, bien que les mécanismes physiques sous-jacents restent mal compris. L’He-II peut être décrit à l’échelle macroscopique comme la superposition de deux fluides en interaction : un fluide normal se comportant comme un liquide ordinaire, et un superfluide sans viscosité. En présence d’une source de chaleur, un contre-courant s’établit naturellement entre ces deux composantes. L’évacuation de la chaleur par ce contre-courant est limit

APA, Harvard, Vancouver, ISO, and other styles

29

Laurent, Justine. "Mesures de la force de Casimir à basse température." Phd thesis, Grenoble, 2010. http://www.theses.fr/2010GRENY070.

Full text

Abstract:

La force de Casimir, du nom du physicien qui prédit en 1948 l'existence de cette force attractive dans la configuration idéale de deux miroirs parfaits, plans et parallèles, est d'origine purement quantique. Elle résulte de l'existence des fluctuations quantiques de point zéro du champ électromagnétique et joue un rôle prépondérant dans le fonctionnement des nanosystèmes mécaniques en cours de développement et qui pourraient dans les années futures révolutionner l'industrie de la microélectronique. Pourtant, les effets correctifs liés à la conductivité des surfaces ou à l'empilement diélectriq

APA, Harvard, Vancouver, ISO, and other styles

30

Taylor, Ryan P. "A micromachined cryogenic valve for distributed cooling applications." 2005. http://catalog.hathitrust.org/api/volumes/oclc/64446165.html.

Full text

APA, Harvard, Vancouver, ISO, and other styles

31

Li, Tsung-Hsien, and 李宗憲. "Investigations on cryogenic cooling in the micro milling." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/27879764610922443995.

Full text

Abstract:

碩士<br>國立臺灣大學<br>機械工程學研究所<br>100<br>The use of liquid carbon dioxide to assist cutting so as to improve the encountered difficulties in micro end milling Ti-6Al-4V titanium alloy was proposed in this study. To confirm the effects of the proposed approach, experimental results were compared with those under dry cutting, high pressure air jet, minimum quantity lubrication (MQL), and wet conditions. It was found that the machined roughness decreased with the cutting speed as observed in the conventional cutting when a larger diameter end milling cutter (D = 0.5 mm) was used. On the contrary, the c

APA, Harvard, Vancouver, ISO, and other styles

32

"Machining of nimonic 90 using sustainable techniques and modelling for the specific cutting energy." Thesis, 2018. http://localhost:8080/iit/handle/2074/7718.

Full text

APA, Harvard, Vancouver, ISO, and other styles

33

Bharti, Reetu. "Thermal Analysis of Cryogenic Rocket Thrust Chamber with Regenerative and Film Cooling." Thesis, 2016. http://ethesis.nitrkl.ac.in/9265/1/2016_MT_RBharti..pdf.

Full text

Abstract:

The thrust chamber is a critical component of the rocket engine. It converts the chemical energy stored in the Propellant into Kinetic energy required to generate the necessary thrust. The thrust chamber consists of an Injector, a Combustion chamber and a Nozzle. The propellant (fuel and oxidizer) is injected and ignited in the combustion chamber, generating high temperature and high pressure gases. This energy of combustion heats up the reaction product gases to a very high temperature, typically to 4500 K. This in turn raises the pressure inside the combustion chamber to very high values. Th

APA, Harvard, Vancouver, ISO, and other styles

34

Choi, Yeon Suk Van Sciver Steven W. "Cryogenic cooling system by natural convection of subcooled liquid nitrogen for HTS transformers." 2004. http://etd.lib.fsu.edu/theses/available/etd-07092004-105303.

Full text

Abstract:

Thesis (Ph. D.)--Florida State University, 2004.<br>Advisor: Dr. Steven W. Van Sciver, Florida State University, College of Engineering, Dept. of Mechanical Engineering. Title and description from dissertation home page (viewed Sept. 22, 2004). Includes bibliographical references.

APA, Harvard, Vancouver, ISO, and other styles

35

Iwata, Geoffrey Zerbinatti. "A cryogenic buffer-gas cooled beam of barium monohydride for laser slowing, cooling, and trapping." Thesis, 2018. https://doi.org/10.7916/D8TJ0057.

Full text

Abstract:

Ultracold molecules promise a revolutionary test bed for quantum science with applications ranging from experiments that probe the nature of our universe, to hosting new platforms for quantum computing. Cooling and trapping molecules in the ultracold regime is the first step to unlocking the wide array of proposed applications, and developing these techniques to control molecules is a key but challenging research field. In this thesis, we describe progress towards a new apparatus designed to cool and trap barium monohydride (BaH), a molecule that is amenable to laser cooling and has prospects

APA, Harvard, Vancouver, ISO, and other styles

36

Hsu, Ming-Hsien, and 徐明賢. "A Study on Grinding Performance with Cryogenic Cooling and Minimum Quantity Lubrication for Titanium Alloy." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/wpfxrf.

Full text

Abstract:

碩士<br>國立虎尾科技大學<br>創意工程與精密科技研究所<br>99<br>Along with widening applications of titanium alloy, the requirement to the machining quality of related parts has been heightened, and their functions could be fulfilled only through grinding process. Due to the low thermal conductivity and high chemical activity of titanium alloy, the high temperature of grinding would be concentrated on the surface layer, which would cause the grinding wheel adhesion and loading, as well as heat damage on the ground surface. Numerous difficulties have become the major factors resulting in its failure of extensive appli

APA, Harvard, Vancouver, ISO, and other styles

37

Min-Sheng, Huang, and 黃閔聖. "Cryogenic Storage Materials Used to Improve the Performance of the Wet-typed Energy Saving Cooling Fan." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/54435712680509792156.

Full text

Abstract:

碩士<br>崑山科技大學<br>機械工程研究所<br>102<br>This research is in consideration to reduce the use of air-conditioning in summer and saving energy consumption of carbon each year, by using the energy-saving wet-typed cooling fan which is commercial fan (28cm × 35cm × 58cm). To avoid the humidity damage the human health, we have changed the design to dry-typed cooling, and modify the cooling storage packages ( ice module, 22°C phase change material modules, cold fluid module), and place them inside the machine to compare the cooling performance of each case. We also modify the air flow direction from bottom

APA, Harvard, Vancouver, ISO, and other styles

38

LEE, MENG-CHAN, and 李孟展. "The Effect of cryogenic cooling and hyperoxia on recovery of heart rate, lactate, NH3 and skin temperature in acute single different exercise patterns." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/g546m3.

Full text

Abstract:

碩士<br>國立體育大學<br>競技與教練科學研究所<br>107<br>The aim of this study was to investigate the effects of cryogenic cooling and hyperoxia on the recovery of heart rate, lactate, NH3 and skin temperature in acute single different exercise patterns. METHODS: Eight male students in sports-related departments (26 ± 4.5 year, 174 ± 5.8 cm, 71 ± 7.2 kg). The research test is divided into running (high-speed treadmill) and rowing (indoor rowing dynamometer), running load (2x3x60s) and rowing exercise load (2x3x200m). The experimental design is carried out by means of counter balance method. For the intermittent a

APA, Harvard, Vancouver, ISO, and other styles

39

Godley, Richard Franklin. "Investigation of Cryo-Cooled Microcoils for MRI." Thesis, 2011. http://hdl.handle.net/1969.1/ETD-TAMU-2011-08-9873.

Full text

Abstract:

When increasing magnetic resonance imaging (MRI) resolution into the micron scale, image signal-to-noise ratio (SNR) can be maintained by using small radiofrequency (RF) coils in close proximity to the sample being imaged. Micro-scale RF coils (microcoils) can be easily fabricated on chip and placed adjacent to a sample under test. However, the high series resistance of microcoils limits the SNR due to the thermal noise generated in the copper. Cryo-cooling is a potential technique to reduce thermal noise in microcoils, thereby recovering SNR. In this research, copper microcoils of two differ

APA, Harvard, Vancouver, ISO, and other styles

40

Gurudath, C. S. "Experimental and Numerical Studies on Phase Shifting in an Inertance Pulse Tube Cryocooler." Thesis, 2016. http://etd.iisc.ac.in/handle/2005/3739.

Full text

Abstract:

This work is concerned with the design, development and performance evaluation of an inertance Pulse Tube Cryocooler (PTC). The main components of a PTC are the compressor, regenerator, pulse tube and inertance tube coupled to a reservoir. The inertance tube is a key component that affects the pressure and mass flow and phase shift between them and hence the performance. In conjunction with the compressor, it also plays a strong role in determining the frequency of operation. The PTC is designed based on system level numerical models (SAGE and DeltaE), component level thermo-acoustic models (D

APA, Harvard, Vancouver, ISO, and other styles

41

Gurudath, C. S. "Experimental and Numerical Studies on Phase Shifting in an Inertance Pulse Tube Cryocooler." Thesis, 2016. http://etd.iisc.ernet.in/2005/3739.

Full text

Abstract:

This work is concerned with the design, development and performance evaluation of an inertance Pulse Tube Cryocooler (PTC). The main components of a PTC are the compressor, regenerator, pulse tube and inertance tube coupled to a reservoir. The inertance tube is a key component that affects the pressure and mass flow and phase shift between them and hence the performance. In conjunction with the compressor, it also plays a strong role in determining the frequency of operation. The PTC is designed based on system level numerical models (SAGE and DeltaE), component level thermo-acoustic models (D

APA, Harvard, Vancouver, ISO, and other styles

42

Jagat, Keshab. "Numerical Simulation of Jet Impingement Cooling on a Pin-Fin." Thesis, 2015. http://ethesis.nitrkl.ac.in/7944/1/2015_MT_Numerical_jagat.pdf.

Full text

Abstract:

The study of a laminar natural convection in a domain with conjugate boundary condition is done by numerical simuation. The Bottom wall of the enclosure is considered to be isothermal. The problem is solved using Ansys Package 15 and the fluient is used for meshing the domain. Various cases are considered by varying the parameters like Reynolds number, jet-to-fin spacing, width of fin and Height of Fin to analyse their effect on the heat transfer and flow characteristics. Reynolds number is taken equal to 3078, 5019 and 8673 to constrain the flow as laminar in enclosure. The result shows some

APA, Harvard, Vancouver, ISO, and other styles

43

Jadhav, N. "Analysis of cooling capacity and optimization of compressor outlet pressure for KW class helium refrigerator/liquefier." Thesis, 2014. http://ethesis.nitrkl.ac.in/5582/1/E-45.pdf.

Full text

Abstract:

The main components of a helium liquefier determines the performance for a given compressor flow rate are Turbine, HE and JT valve. Turbine and JT valve produces cooling effect by isentropic and isenthalpic expansion. For each configuration main components can have different operating process parameters leading to different performance of HRL. This project involves the analysis and optimization of compressor outlet pressure for a given configuration. JT valve is at the lowest temperature to get the highest liquefaction which depends on the performance of other components so optimization of pro

APA, Harvard, Vancouver, ISO, and other styles

44

K, B. Ashita. "Design and Optimization of Heat Exchanger for Cooling of Supercritical Helium Using Boiling Liquid Helium." Thesis, 2017. http://ethesis.nitrkl.ac.in/8988/1/2017_MT_KBAshita.pdf.

Full text

Abstract:

The indigenous Helium Refrigeration and Liquefaction plant (mixed mode operation) at IPR has an equivalent capacity of 1 kW refrigeration at 4.5 K. The vacuum chamber of the cold box in the He plant contains a liquid Helium container. This container will hold a heat exchanger to cool the supercritical Helium(SHe) from about ~5 K to 4.6 K. This project will involve the design and optimization of this heat exchanger. This vacuum chamber of the cold box will be a horizontal cylinder with a tentative diameter of 2.5 m and length ~8 m. It consists of many cold components for the production of liqui

APA, Harvard, Vancouver, ISO, and other styles

45

Pikkula, Brian Matthew. "Optimization of cryogen spray cooling: Increasing epidermal protection during cutaneous laser procedures." Thesis, 2004. http://hdl.handle.net/1911/18683.

Full text

Abstract:

Cryogen spray cooling (CSC) is an effective method to minimize epidermal damage during laser treatment of various cutaneous anomalies such as port wine stains (PWS). We examined the mechanism of heat removal by CSC from skin, and heat removal was compared for CSC and contact cooling, another precooling method for cutaneous laser therapy. Next, we examined the heat removal ability of various cryogen delivery devices using a skin phantom and an inverse heat conduction algorithm. Third, the droplet characteristics were evaluated and correlated with heat removal in the skin phantom. An ex vivo stu

APA, Harvard, Vancouver, ISO, and other styles

46

Cheng, Shih-Feng, and 程世峰. "Bioheat Transfer Analysis in Selective Photothermolysis Therapy Associated with Cryogen Spray Cooling." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/97712264649570999379.

Full text

Abstract:

博士<br>國立中興大學<br>應用數學系所<br>96<br>Currently, Laser has been successful applied in the treatment of cosmetic surgery. Due to various reactions of skin or biological tissue react toward the absorption and scattering of different light waves. Every kind of wavelengths of laser beam can be used to treat different pathological changes. To avoid the skin or biological tissue burned down or necrotic during the laser treatment process, the study on the heat transfer reaction of skin or biological tissue in the laser irradiation is very important. Due to the blood circulation system of biological bodies

APA, Harvard, Vancouver, ISO, and other styles

47

Singh, Vijayender. "Grindability improvement of conductive ceramics using cryogenic coolant and modeling for specific grinding energy." Thesis, 2010. http://localhost:8080/iit/handle/2074/5248.

Full text

APA, Harvard, Vancouver, ISO, and other styles

48

Reddy, Sudheer Kumar V. "Development And Performance Evaluation Of An Indirect Evaporative Air Cooler." Thesis, 2011. https://etd.iisc.ac.in/handle/2005/2384.

Full text

Abstract:

Evaporative cooling is an alternative and efficient method of cooling in dry climates. When a liquid evaporates into the surrounding gas, the energy required for the change of phase produces a cooling effect. The wet bulb depression is the measure of potential for evaporative cooling. Greater the wet bulb depression greater is the cooling effect, and vice versa. The residential desert cooler, apart from cooling the air increases the humidity of the air in the room by absorbing moisture from the water supplied to the cooler. This may result in an undesirable increase in humidity level. Allerg

APA, Harvard, Vancouver, ISO, and other styles

49

Reddy, Sudheer Kumar V. "Development And Performance Evaluation Of An Indirect Evaporative Air Cooler." Thesis, 2011. http://etd.iisc.ernet.in/handle/2005/2384.

Full text

Abstract:

Evaporative cooling is an alternative and efficient method of cooling in dry climates. When a liquid evaporates into the surrounding gas, the energy required for the change of phase produces a cooling effect. The wet bulb depression is the measure of potential for evaporative cooling. Greater the wet bulb depression greater is the cooling effect, and vice versa. The residential desert cooler, apart from cooling the air increases the humidity of the air in the room by absorbing moisture from the water supplied to the cooler. This may result in an undesirable increase in humidity level. Allergi

APA, Harvard, Vancouver, ISO, and other styles

50

Su, Yun-Liang, and 蘇允良. "Experimental and Numerical Simulation Studies on Bioheat Transfer Problems with Cryogen Spray Cooling during Laser Thermal Therapy in Bio-tissue." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/74778783030054395504.

Full text

Abstract:

博士<br>國立中興大學<br>應用數學系所<br>104<br>In medical cosmetology, laser energy must be properly controlled to avoid unnecessary thermal damage of normal tissue due to excessive irradiation. When a laser source is applied to a specific target that is very close to the surface tissue, residual heat may damage the surface tissue even after the laser treatment is halted. In the laser treatment, laser heat sources may apply as the multiple-points around the specific target that the distance among these multiple-points are very close. The thermal energies may accumulate due to the effects of the interactions

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!