Thèses sur le sujet « In-field diagnosticts »
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Frierson, Robert V. Jr. « Spectroscopic diagnostics of a plasma in a rotating magnetic field ». Thesis, Georgia Institute of Technology, 1988. http://hdl.handle.net/1853/17236.
Texte intégralGoldberg, Benjamin M. « Electric Field Measurements in Non-Equilibrium ElectricDischarge Plasmas Using Picosecond Four-Wave Mixing ». The Ohio State University, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=osu1449236861.
Texte intégralChavez, Jose Luis Fierro. « Diagnostic techniques of electrical failures in organic insulators installed in the field ». Thesis, University of Salford, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.306080.
Texte intégralKastner, Jeffrey F. « Far-field radiated noise mechanisms in high reynolds number and high-speed jets ». The Ohio State University, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=osu1181753004.
Texte intégralHabib, Josef. « Development & ; optimization of diffusion tensor imaging at high field strengths in translational research ». Thesis, University of Nottingham, 2012. http://eprints.nottingham.ac.uk/12405/.
Texte intégralGravestijn, Bob. « Importance of radial profiles in spectroscopic diagnostics applied to the EXTRAP-T2R reversed-field pinch ». Doctoral thesis, KTH, Physics, 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3656.
Texte intégralThe determination of the plasma confinement propertiesdemand data as the electron temperature, the ionic and electrondensity profiles and the radiative emissivity profiles. Thefocus of this thesis is the importance of radial profiles inspectroscopic diagnostics applied to the EXTRAP-T2Rreversed-field pinch.
EXTRAP-T2R is a resistive shell reversed-field pinch with amagnetic field shell penetration time much longer than therelaxation cycle time scale. Significant improvements inconfinement properties derived by quantitative plasmaspectroscopy in the vacuum ultraviolet are observed compared tothe previous device EXTRAP-T2. The low level of magneticturbulence and the good magnetic surfaces in the edge regionexplain this observed improvement. A current profile controlexperiment reduces the stochastic transport, which is connectedto the dynamo, and improves the confinement in EXTRAP-T2R evenmore.
A comparison of the electron temperature estimated by usinga ratio of line intensities from the same ionization stage ofoxygen and the Thomson scattering system shows that thedifference is explained by the different spatial dependence ofthe excited state populations and the corresponding emissivityof these spectral lines. A collisional radiative model givesestimates for radial profiles of impurities which are notmeasured in EXTRAP-T2R. The estimated profiles can in turn beused to determine the radial profile of the effective ioncharge, the emissivity and finally the radiative power. Asinput, the model uses radial profiles.
Neutral hydrogen is predominantly present in the boundaryregion of the plasma. Spectroscopic investigations in this areashow very asymmetric spectral lines of hydrogen due to themovement of atoms. The velocity of the hydrogen atoms dependson the type of plasma-wall interaction and their measurementhelps to identify the different interaction processes. Theexistence of hydrogen molecules in the edge complicates theinterpretation of the line shapes and on the determination ofthe particle confinement time.
Keywords:Reversed-field pinch, EXTRAP-T2R, quantitativeplasma spectroscopy, VUV spectroscopy, line-integrated electrontemperature, oxygen, profiles, confinement properties, powerbalance, hydrogen, particle confinement time.
Fredholm, Johan, et Benjamin Taghavi-Awal. « Capital markets in developing countries : A model for capital market diagnostics, with a field study implementation in Georgia ». Thesis, Stockholm University, School of Business, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-6430.
Texte intégralThis thesis starts with a research overview of the relationship between financial system development, capital markets and economic growth. The general consensus among economists is that financial system development contributes to economic growth and that both banks and capital markets are important in that development. These findings justify the interest that aid agencies and international organisations show for assisting financial development in developing countries. The authors go on to create a model for Capital Market Diagnostics (CMD) that could be used by such organisations to evaluate the level of development of the capital market in a developing country. The model consists of three steps. Step one determines whether necessary conditions, such as security and rule of law, exist in the country. Step two lists factors that can improve or impede the development of the capital market, focusing on the availability of capital, the availability of investment opportunities and macro environment factors that affect these two. The third step consists of an evaluation of the financial institutions in the country, providing checklists for interviews and site visits. To test the model it was implemented during a field study in Georgia. The conclusions from the test were that the final model, having been improved during the field study, meets the requirements for accuracy and usability and can be utilised as intended. The evaluation also resulted in conclusions on the development of the Georgian capital market. The level of development is low, mainly due to a lack of investment opportunities. There are few companies using the capital market in Georgia, and the ongoing privatisation process is not changing this but instead creates privately held companies with few owners. Another cause for the low level of development is a lack of capital, due to low interest and level of knowledge from domestic investors and a pension system that does not channel investments to the capital market. However, the institutions of the capital market are sufficiently developed for the current level of market activity and do not limit capital market development at this stage.
Van, der Walt Jacobus Gert. « Radiation field shaping through low temperature thermal-spray in radiotheraphy ». Thesis, Bloemfontein : Central University of Technology, Free State, 2009. http://hdl.handle.net/11462/116.
Texte intégralSuperficial cancerous lesions are commonly treated through low energy X-ray or electron radiation in radiotherapy. The treatment units that produce the radiation are equipped with square, rectangular and round applicators of different sizes. These applicators attach to the treatment units and define the radiation field size applied during treatment. An applicator is chosen to fit the shape of the cancerous lesion on the patient as closely as possible. Since cancerous lesions are irregular in shape, there will always be an area of healthy tissue between the edge of the lesion and the edge of the standard field shape. This healthy tissue will be irradiated along with the lesion during treatment which is undesirable since the cancer wound heals through reparative growth of the surrounding healthy tissue after treatment. Traditional techniques that were developed to shield this healthy tissue and thus shape the radiation field to the shape of the lesion present various shortcomings. This study introduces a new thermal-spray process for producing radiation field shaping shields which overcomes most of the shortcomings encountered with the traditional field shaping techniques. Since none of the commercially available thermal-spray equipment could be used to produce field shaping shields, new thermal-spray equipment was designed and fabricated tailor made to the application. Different techniques to determine the contours of the treatment area on the patient were investigated. These included a patient contact technique using a plaster bandage impression and a non-contact technique using 3D laser scanning. From the plaster bandage impression a plaster model can be produced onto which a high density low melt material such as Wood’ s alloy can be thermally sprayed to produce a field shaping mask. A model can also be produced from the 3D laser scanning data through laser sintering (LS) in nylon polyamide powder or through computer numerical controlled (CNC) milling in a block of low density polyurethane. The thermal-spray technique was evaluated by comparing the field shaping ability of radiation shields produced through the technique to the field shaping ability of shields produced through the traditional techniques. Radiographic film was used for this purpose and the results are presented in the form of isodensity charts. The required thicknesses of thermal-sprayed field shaping masks to shield radiation of various energies were also determined. The thicknesses were determined through radiation transmission measurements of known thicknesses of sprayed sheets of Wood’ s alloy. X-ray imaging showed that there were no defects present within thermal-sprayed layers of Wood’ s alloy that may negatively affect the shielding ability of masks produced through the technique.
Ghattas, Lama. « Autodiagnostic des perturbations des réseaux d’antennes : application à la goniométrie ». Thesis, CentraleSupélec, 2015. http://www.theses.fr/2015SUPL0001/document.
Texte intégralThis thesis focuses on the design of an in-situ measurement system to detect variable disturbances in the near field of antenna arrays. The first part was focused on the study of the benefit of the monitoring system for direction finding antennas (DFA). A quantitative study of degradation of performances of DFA installed on a carrier in presence of variable obstacles was done. The second point of the study concerns the choice for the technology for the diagnostic system design. The Optically Modulated Scatterer Technique (OMS) is selected. A model that predicts the OMS backscattered power is developed to select the optimal dimension of the probe. Following the theoretical studies, a 12 cm OMS probe coupled to the nonlinear device (PDCS30T) was designed. Measurements in anechoic chamber were conducted to validate the budget link model and measure the sensitivity of the probe to nearby objects. Finally, a study is conducted to investigate the sensitivity required by the diagnostic probes for detecting the presence of obstacles. A dimensioning of the overall system is computed
Hall, Christine Margaret. « The development and evaluation of two computer-based diagnostic aids in the field of inherited skeletal dysplasias and malformation syndromes ». Thesis, Imperial College London, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.419866.
Texte intégralHillman, Timothy R. « Microstructural information beyond the resolution limit : studies in two coherent, wide-field biomedical imaging systems ». University of Western Australia. School of Electrical, Electronic and Computer Engineering, 2008. http://theses.library.uwa.edu.au/adt-WU2008.0085.
Texte intégralForestier-Colleoni, Pierre. « Etude expérimentale des champs magnétiques en surface d'une cible irradiée par laser et leurs implications sur le faisceau d'électrons ». Thesis, Bordeaux, 2016. http://www.theses.fr/2016BORD0036/document.
Texte intégralThis thesis concerns magnetic fields, generated by the interaction between strong laser pulse (intensity up to1018 W/cm2) and solid target, and their effects on the fast electron beam. Indeed, the various magnetic fields created during this interaction can inuence the divergence of the fast electron beam. The magnetic field createdduring this interaction have a fundamental role on the fast electron beam characteristics : its source and its transportin the material. Diagnotics of polarimetry and crossed interferometry were developed during this thesis to observethe on-surface magnetic field of the target, and in particular, their spatial and temporal evolutions. Two types oftemporal evolution of the magnetic field were observed according to the contrast in intensity of the laser pulse : afast rise of magnetic field followed by a slower decrease created by the travel of the fast electrons in the material,and a slower growth of logarithmic form created by the pre-pulse of the laser by thermoelectric effect. The interpretation of our results obtained by these diagnotics allowed us to estimate the resistivity of the plasma.This resistivity named "anomalously high resistivity" in the literature can be explained by taking into account theinuence of the magnetic field on the electrons transport (creation of an anisotropy) and thus on the resitivity.The last diagnotic allowing the estimation of the magnetic field detailed in this thesis is the proton deectometry. itallows to observe the deviation of a proton beam during its propagation under the inuence of electric and magneticfields. Other experiments were focused on the fast electron beam divergence. Two main diagnotics were used : the K α imaging and the coherent transition radiation (C.T.R) imaging at the rear side of solid targets. These diagnoticsallowed to estimate the fast electron beam divergence for two distinct energetic electron populations. The differenceof divergence coming from characteristics of both diagnotics (electrons in charge of the emissions in different energies). The diagnotics of on-surface magnetic fields of target irradiated by intense laser, such as the technics of polarimetry and crossed interferometry developed in this thesis, are dedicated to be combined with diagnotics determining the evolution of the radial size of the fast electron beam generated by the laser-matter interaction. Their simultaneous use, and the correlation between their respective data, should allow to establish experimentally, in the short term, the inuence of the on-surface magnetic fields on the fast electron beam initial characteristics, in particular the angular and energy distributions. Our results of polarimetry on the spatio-temporal evolution of the magnetic fields of surface establish the state of the art for this type of measures. There are possible improvements, in particular as regards their use in conditions of irradiation by lasers of intensities > 1018 W/cm2. These perspectives are also the object of discussions in this manuscript
Aglietti, Chiara, Paolo Capretti, Nicola Luchi, Luisa Ghelardini et Alberto Santini. « Messa a punto di tecniche diagnostiche per patogeni di quarantena/Development of diagnostics techniques for studying quarantine plant pathogens ». Doctoral thesis, 2020. http://hdl.handle.net/2158/1187844.
Texte intégralNiazi, Muhammad Rizwan. « Solution Processing of Small Molecule Organic Semiconductors : From In situ Investigation to the Scalable Manufacturing of Field Effect Transistors ». Diss., 2018. http://hdl.handle.net/10754/628035.
Texte intégralCOSTA, GIUSEPPE. « Ion Acceleration by High Intensity Pulsed Laser : Transport, Diagnostics and Theoretical Modelling ». Doctoral thesis, 2019. http://hdl.handle.net/11570/3147402.
Texte intégralSchumacher, Petra [Verfasser]. « Establishment of a systematised approach for the development of novel diagnostics and therapeutics in the field of biotechnology / vorgelegt von Petra Schumacher ». 2006. http://d-nb.info/980586429/34.
Texte intégralКлапущак, Христина Миколаївна, et Khrystyna Klapushchak. « Особливості організації та методики обліку, аналізу та аудиту на підприємствах сфери послуг (на прикладі ПАТ «Тернопільгаз» Гусятинське управління з експлуатації газового господарства) ». Master's thesis, 2020. http://elartu.tntu.edu.ua/handle/lib/33313.
Texte intégralThe thesis examines the problems of accounting and analytical reflection of information in the field of services. The specifics of gas transportation and distribution enterprises, their influence on the organization of accounting are determined. Recommendations for improving the cloud and audit of service enterprises have been developed. The method of digitalization of some accounting processes was further developed. The directions of improvement of audit in the field of gas transportation are offered, its basic receptions are allocated.
ВСТУП 4 РОЗДІЛ 1. ТЕОРЕТИЧНІ АСПЕКТИ ОБЛІКОВО-АНАЛІТИЧНОЇ СИСТЕМИ У СФЕРІ ПОСЛУГ 1.1. Сутність організації облікового процесу 6 1.2. Напрямки аналітичного процесу 11 1.3. Техніко-економічна характеристика Гусятинського УЕГГ ПАТ «Тернопільгаз» 18 РОЗДІЛ 2. ОРГАНІЗАЦІЇ ОБЛІКУ ТА АУДИТУ НА ГУСЯТИНСЬКОМУ УЕГГ 2.1. Організація діловодства та документування 28 2.2. Згортання та розгортання інформації 34 2.3. Елементи діджиталізації фінансового обліку 37 2.4. Методика та організація аудиту 40 РОЗДІЛ 3. АНАЛІЗ ВИТРАТ ГУСЯТИНСЬКОГО УЕГГ 3.1. Аналіз витрат на транспортування газу 47 3.2. Аналіз собівартості 1000м3 газу 51 3.3. Факторний аналіз рентабельності капіталу 54 РОЗДІЛ 4. ОХОРОНА ПРАЦІ ТА БЕЗПЕКА В НАДЗВИЧАЙНИХ СИТУАЦІЯХ 6.1. Організація охорони праці на Гусятинському УЕГГ ПАТ «Тернопільгаз» 66 6.2. Стійкість роботи підприємств сфери послуг в умовах надзвичайних ситуацій 69 ВИСНОВКИ І ПРОПОЗИЦІЇ 72 СПИСОК ВИКОРИСТАНИХ ДЖЕРЕЛ 76
Reeve, David Mark. « Comparative accuracy and 'field friendly' effectiveness of diagnostic tools for lymphatic filariasis and neurocyticercosis in Papua New Guinea and Timor-Leste with consideration on the impact of parasitic reduction programs ». Thesis, 2010. https://researchonline.jcu.edu.au/19042/1/01front.pdf.
Texte intégralHamada, Martin. « Analýza individuálního herního výkonu ofenzivního středního středového hráče ve fotbale ». Master's thesis, 2013. http://www.nusl.cz/ntk/nusl-328542.
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