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Relevant bibliographies by topics / Effect of space environment on

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Dissertations / Theses

Academic literature on the topic 'Effect of space environment on'

Author: Grafiati

Published: 4 June 2021

Last updated: 27 July 2024

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Dissertations / Theses on the topic "Effect of space environment on"

1

Wahle, Peter Joseph 1961. "Radiation effects on power MOSFETs under simulated space radiation conditions." Thesis, The University of Arizona, 1989. http://hdl.handle.net/10150/277024.

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Application of power MOSFETs in spaceborne power converters was simulated by exposing devices to low-dose-rate ionizing radiation. Both radiation-hardened and nonhardened devices were tested with constant and switched gate biases during irradiation. In addition, some of the devices were under load. The threshold-voltage shifts were strongly bias dependent. The threshold-voltage shift of the nonhardened parts was approximately dose-rate independent, while the hardened parts exhibited significant dose-rate dependence. A pre-anneal dose-rate dependence was found for the interface-state buildup of

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2

Amutkan, Ozge. "Space Radiation Environment And Radiation Hardness Assurance Tests Of Electronic Components To Be Used In Space Missions." Phd thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/12612238/index.pdf.

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Space radiation is significantly harmful to electronic Components. The operating time, duration and orbit of the space mission are affected by the characteristic of the radiation environment. The aging and the performance of the electronic components are modified by radiation. The performance of the space systems such as electronic units, sensors, power and power subsystem units, batteries, payload equipments, communication units, remote sensing instruments, data handling units, externally located units, and propulsion subsystem units is determined by the properly functioning of various electr

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3

Bulusu, Aparan. "The Effect of Microenvironmental Space on Communication and Job Satisfaction in an Office Environment: A Systematic Enquiry." TopSCHOLAR®, 1995. http://digitalcommons.wku.edu/theses/933.

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A total of 69 employees in various job positions working in cubicles in an open-office space plan, of a large organization, completed a questionnaire investigating the impact of microenvironmental space on communication and job satisfaction. Data was analyzed using quantitative research methods. The results showed that a distinct lack of conversational privacy existed in this office. Also, when the level of noise decreased, the perceived level of privacy and job satisfaction increased. Excessive interaction, distraction, and communication with colleagues resulted in decreased level of communic

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4

Sundaralingam, Padmini. "Investigation of the effect of phase conjugation and time reversal techniques in free space and reverberant environment." Thesis, Queen's University Belfast, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.580090.

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We numerically explore the performance of the time reversal approach in terms of temporal and spatial focussing in three different propagation environments: free space, partially reflected medium and fully reflected medium. Performance of the phase conjugation scheme is experimentally investigated in partially reflected medium and fully reflected medium based on the characteristics of focus sing and steering capabilities. We have explored numerically the E-field time evolution along the propagation path and the beam steering action of a 2.45 GHz time reversal retrodirective array using dipole

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5

Underwood, Craig Ian. "Single event effects in commercial memory devices in the space radiation environment." Thesis, University of Surrey, 1996. http://epubs.surrey.ac.uk/743/.

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6

Lourenco, Nelson Estacio. "An assessment of silicon-germanium BiCMOS technologies for extreme environment applications." Thesis, Georgia Institute of Technology, 2012. http://hdl.handle.net/1853/45959.

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This thesis evaluates the suitability of silicon-germanium technology for electronic systems intended for extreme environments, such as ambient temperatures outside of military specification (-55 degC to 125 degC) range and intense exposures to ionizing radiation. Silicon-germanium devices and circuits were characterized at cryogenic and high-temperatures (up to 300 degC) and exposed to ionizing radiation, providing empirical evidence that silicon-germanium is an excellent platform for terrestrial and space-based electronic applications.

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7

Wilcox, Edward. "Silicon-germanium devices and circuits for cryogenic and high-radiation space environments." Thesis, Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/33850.

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This work represents several years' research into the field of radiation hardening by design. The unique characteristics of a SiGe HBT, described in Chapter 1, make it ideally suitable for use in extreme environment applications. Chapter 2 describes the total ionizing dose effects experienced by a SiGe HBT, particularly those experienced on an Earth-orbital or lunar-surface mission. In addition, the effects of total dose are evaluated on passive devices. As opposed to the TID-hardness of SiGe transistors, a clear vulnerability to single-event effects does exist. This field is divided into

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8

Noyes, Connor David. "Characterization of the Effects of a Sun-Synchronous Orbit Slot Architecture on the Earth's Orbital Debris Environment." DigitalCommons@CalPoly, 2013. https://digitalcommons.calpoly.edu/theses/1026.

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Low Earth orbit represents a valuable limited natural resource. Of particular interest are sun-synchronous orbits; it is estimated that approximately 44% of low Earth satellites are sun-synchronous. A previously developed sun-synchronous orbit slot architecture is considered. An in-depth analysis of the relative motion between satellites and their corresponding slots is performed. The long-term evolution of Earth's orbital environment is modeled by a set of coupled ordinary differential equations. A metric for quantifying the benefit, if any, of implementing a sun-synchronous architecture is d

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9

Rapp, Jason B. "IDENTIFICATION OF ORBITAL OBJECTS BY SPECTRAL ANALYSIS AND OBSERVATION OF SPACE ENVIRONMENT EFFECTS." DigitalCommons@CalPoly, 2012. https://digitalcommons.calpoly.edu/theses/861.

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This report presents an investigation and development of the methods for orbital object identification. Two goals were accomplished in this master’s thesis; the development of a method of inverting material proportions from an object’s combined spectrum, and the investigation of methods and initialization of measurement of space environment effects on spectral features of common spacecraft materials. A constrained least squares approach was chosen for inverting spectral proportions from the combined spectra. The final results fall within 1 - 15% of the original spectrum, depending on the qua

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10

Romson, Åsa. "Environmental Policy Space and International Investment Law." Doctoral thesis, Stockholms universitet, Juridiska institutionen, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-74521.

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This dissertation analyses the implications of international investment law on host states’ legal ability to protect the environment, regulate sustainable use of natural resources, and develop new approaches to manage environmental risks and uncertainties. ‘Environmental policy space’ is found to be a useful term when exploring the regulatory autonomy in this context. On one hand, investment law aims to ensure stability of the investment environment. On the other hand, environmental law needs flexibility to react to the degradation of the environment. It is found that those different aims do n

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