31 research outputs found
Analysis of power balance in a helicon plasma source
No full textThis thesis analyses the Helicon Injected Inertial Plasma Electrostatic Rocket (HIIPER), a space propulsion concept consisting of a helicon source for plasma generation and an ion extraction method using a nested pair of inertial electrostatic confinement (IEC) grids that are asymmetrically designed. In this study, the HIIPER setup was modelled based on the previous experimental data of the plasma characteristics obtained to account for various power loses and understand the major contributors to the low efficiency and final thrust performance. The loses to the quartz tube wall was substantially higher than the loses at the metal bellow region and the loses due to ionization and excitation. Future improvements in Langmuir probe design to characterize the plasma and the feasible changes to the experimental setup are provided in this study.Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2022-05-01The student, Hariharan Manickam Vaithiyanathan, accepted the attached license on 2020-04-30 at 11:52.The student, Hariharan Manickam Vaithiyanathan, submitted this Thesis for approval on 2020-04-30 at 12:09.This Thesis was approved for publication on 2020-05-12 at 11:33.DSpace SAF Submission Ingestion Package generated from Vireo submission #15126 on 2020-08-25 at 17:28:30Made available in DSpace on 2020-08-26T23:57:20Z (GMT). No. of bitstreams: 2
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Previous issue date: 2020-05-12Embargo set by: Seth Robbins for item 115750
Lift date: 2022-08-26T23:57:28Z
Reason: Author requested U of Illinois access only (OA after 2yrs) in Vireo ETD systemEmbargo set by: Seth Robbins for item 115750
Lift date: 2022-08-26T23:58:55Z
Reason: Author requested U of Illinois access only (OA after 2yrs) in Vireo ETD systemAuthor requested U of Illinois access only (OA after 2yrs) in Vireo ETD systemU of I Onl
Additions and corrections: Nano a-NiMoO4 as new electrode for electrochemical supercapacitors
No full textTwo of the author names are incorrectly written, showing the surname as the first name, and the first name as the surname. The correct names are Danielle Meyrick and Manickam Minaksh
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La Búsqueda de la Identidad Femenina en las Novelas de Dos Autoras Mexicanas
No full textThe novel is one means by which writers can provide examples of the possibilities for women in patriarchal societies to seek greater independence. Sabina Berman (1955- ) and Silvia Molina (1946- ) are modern day Mexican novelists whose writings support the betterment of the female condition in this Latin American society. This study focuses on these two authors and describes and analyzes several of their female protagonists who can be characterized as being in search of their self-identity and self-realization. The novels of interest are La Bobe (2006) and La Mujer que Buceó Dentro del Corazón del Mundo (2010) by Sabina Berman and La Mañana Debe Seguir Gris (1977) and El Amor Que Me Juraste (1998) by Silvia Molina. The theoretical framework used to analyze these novels is based on The Second Sex by Simone de Beauvoir and on the writings of the Mexican author Rosario Castellanos. These novels provide examples of how women can challenge patriarchal social norms in order to seek their identity as an individual and their self-realization. However, to do this, women must be willing to accept the risks and costs that may accompany this self-searching. By seeking identity women can satisfy their longings and desires, but at the same time this may also produce undesired results. Nevertheless, these novels show that women have the ability to seek their personal identity if they take the initiative to do so
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La vía del abandono en los cuentos de Amparo Dávila
No full textAmparo Davila's writing style is characterized by circumventing the boundaries between the real and the fantastic and between the known and the unknown. The author creates a narrative that evokes horror in the reader by mixing the uncanny of the unknown with the reality of the world. This study proposes that the sinister in Davila's stories are created by abandonment. This abandonment is the peremptory element of Davilian narrative and can be seen and examined throughout the author's literary work. The abandonment wields a mechanism of loneliness, madness, hopelessness and chaos that eventually provokes the sinister. The element of abandonment disturbs the main character of the story and makes him fall into an abyss from which he or she cannot escape. This abandonment is not always obvious, since most of the time the abandonment is veil by a halo of gothic and fantastic elements. The present thesis has the task of breaking down the different types of abandonment that are presented throughout this narrative, its sinister function and the theoretical and historical interpretation of the various abandonments both personal and collective that Amparo Davila presents. The route of abandonment proposed in this thesis is explained in the following three stories: "El desayuno" (1961), "La quinta de las celosías" (1959) and "La señorita Julia" (1959)
Los encuentros entre México y los Estados Unidos en spanglish y los tres entierros de Melquiades Estrada.
No full textIn this article the author carries out a comparative analysis of the representation of the Mexican migrant worker in two recent Hollywood films, Spanglish and The Three Burials of Melquiades Estrada. Aspects such as the main characters, the Mexican-American relationship and the bicultural-bilingual experience, among others will be discussed.En este artículo se hace un análisis comparativo de la imagen del inmigrante mexicano retratada en dos filmes recientes de Hollywood, Spanglish y Los tres entierros de Melquiades Estrada. Se discuten aspectos como los personajes principales, la relación mexicana-americana y la experiencia bicultural bilingüe, entre otros
A research facility for film cooling investigations with emphasis on the instrumentation system 13; 13;
No full textThe layout and the instrumentation of a facility for film cooling investigation is described. The injectant air is heated and the mainflow air remains at ambient temperature while the temperature ratio between the injectant and the main flow is simulated. The lift-off/attachment characteristics, the nature of streamwise penetration, and the lateral spreading of the injectant film for a discrete hole injection configuration in an accelerating turbine blade passage was studied. Though detailed studies of injectant films in the case of flat plates have been carried out by many researchers, little work has been done on the above topic for the case of actual blades. Many regions remain unexplored in this discrete hole cooling process which is considered promising for turbine blades. The instrumentation system has been geared to obtain details of flow and mixing in the vicinity of the injection holes, including the upstream and the downstream regions. (Author
A flexible simulation framework for processor scheduling algorithms in multicore systems.
No full textIn traditional uniprocessor systems, processor scheduling is the responsibility of the operating system. In high performance computing (HPC) domains that largely involve parallel processors, the responsibility of scheduling is usually left to the applications. So far, parallel computing has been confined to a small group of specialized HPC users. In this context, the hardware, operating system, and the applications have been mostly designed independently with minimal interactions. As the multicore processors are becoming the norm, parallel programming is expected to emerge as the mainstream software development approach. This new trend poses several challenges including performance, power management, system utilization, and predictable response. Such a demand is hard to meet without the cooperation from hardware, operating system, and applications. Particularly, an efficient scheduling of cores to the application threads is fundamentally important in assuring the above mentioned characteristics. We believe, operating system requires to take a larger responsibility in ensuring efficient multicore scheduling of application threads. To study the performance of a new scheduling algorithm for the future multicore systems with hundreds and thousands of cores, we need a flexible scheduling simulation testbed. Designing such a multicore scheduling simulation testbed and illustrating its functionality by studying some well known scheduling algorithms Linux and Solaris are the main contributions of this thesis. In addition to studying Linux and Solaris scheduling algorithms, we demonstrate the power, flexibility, and use of the proposed scheduling testbed by simulating two popular gang scheduling algorithms - adaptive first-come-first-served (AFCFS) and largest gang first served (LGFS). As a result of this performance study, we designed a new gang scheduling algorithm and we compared its performance with AFCFS. The proposed scheduling simulation testbed is developed using Java and expected to be released for public use.The original print copy of this thesis may be available here: http://wizard.unbc.ca/record=b180562
Synthesis and toxicity test of magnetic nanoparticle via biocompatible microemulsion system as template for application in targeted drug delivery
No full textDynamic Improved Path Planning for Mobile Beacon in Wireless Sensor Network
No full textAbstractThe main intention of wireless sensor network is to provide the information about the spatiotemporal characteristics of the observed physical world. In many wireless sensor network applications, namely forest fire detection, animal tracking etc., it is important to locate the sensor with accuracy. Locating the sensors after they have deployed is termed as localization. Most of the localization algorithm relies on the availability of reasonably accurate location information. This is valid only in few networks which has location sensing devices, such as GPS receivers are available at all nodes. In real time, equipping GPS with all sensor nodes are rare due to its cost, power. To overcome these limitations various path have been proposed to derive approximated locations of all nodes using the mobile beacon. In existing systems, Localization techniques that are proposed for sensor nodes are calculated by receiving the mobile beacon signal with their coordinates by incorporating the various path planning scheme like SCAN, DOUBLE SCAN, HILBERT and Z curve for trajectory of mobile beacon. Those path planning strategies resulting in existence of collinear problem and localization error of nodes. In this paper, a novel Tree - Climbing path planning mechanism is proposed. The proposed path ensures to overcome collinear problem by travelling in a tree based path. The performance of a novel tree climbing is analysed using the NS2 simulator
