O conforto é um aspecto muito importante ao se tratar de vestuário, por isso cada vez mais estão sendo desenvolvidos tecidos com características específicas para proporcionar conforto nas mais diversas situações de uso. Dentro desse contexto, o conforto térmico fisiológico tem papel fundamental e um dos seus pontos chave é a capacidade dos têxteis de gerenciar a umidade proporcionada pelo processo de suor do corpo. O equipamento Moisture Management Tester (MMT) foi desenvolvido para possibilitar uma avaliação prática e confiável dessa propriedade dos tecidos e permite calcular um índice que reflete a capacidade global de gestão de umidade (OMMC) das amostras analisadas. O objetivo desse trabalho é realizar uma avaliação dos resultados obtidos no equipamento MMT em tecidos de malha fabricados com diversos tipos de fios e de contexturas e comparar os resultados com outros métodos de medida de gerenciamento de umidade, para verificar a eficácia do equipamento em quantificar a diferença de comportamento entre os tecidos analisados. Através da análise estatística concluiu-se que a metodologia utilizada no MMT possui uma divisão mais equilibrada da influência dos fatores para os resultados encontrados, sendo mais fiel ao que acontece com o tecido na pratica, com resultados mais representativos, pois todos os fatores que interferem nos resultados são consideração de maneira equilibrada / Comfort is a very important aspect related to garments, that is why fabrics containing specific characteristics to provide comfort in all kinds of situations are being developed. Within this context, the physiological thermal comfort plays a crucial role and one of his key points is the ability of textile to manage moisture provided by the body sweat process. The Moisture Management Tester (MMT) methodology was developed to enable a practical and reliable evaluation of this property of fabrics and allows the calculation of an index that reflects the overall moisture management capacity (OMMC) of the samples. The objective of this was to provide an evaluation of the results obtained on MMT on different types of yarn and knits compared to other moisture management methods of measurement, and intending to verify the effectiveness of the equipment to quantify the difference in behavior among the analyzed fabrics. Through statistical analysis, it was concluded that the methodology used in MMT has a more balanced division of the factors influence in founded results, seen as more faithful to what happens to fabric in practice, with more representative results because all factors that interfere in the results are considered in a balanced way

CoordenaÃÃo de AperfeiÃoamento de Pessoal de NÃvel Superior / O objetivo desse trabalho foi desenvolver filmes biodegradÃveis à base de amido e goma de cajueiro, acrescidos ou nÃo de montmorilonita. Em uma primeira etapa, foi feito um delineamento experimental composto central a partir de misturas entre amido e goma de cajueiro (1:1, m:m) adicionadas de diferentes concentraÃÃes da argila montmorilonita (0 a 15% - MMT) e tempos de ultrassom (0 a 5 min), onde foi realizado um estudo das variaÃÃes de desempenho de filmes produzidos por deposiÃÃo (casting), em funÃÃo das variÃveis. Os filmes foram avaliados em termos de propriedades Ãticas, mecÃnicas, de barreira e tÃrmicas e analisados por Microscopia eletrÃnica de varredura (MEV) e Ãngulo de contato. Em uma segunda etapa do trabalho, as formulaÃÃes dos filmes amido e goma de cajueiro (AGC) e os de amido, goma de cajueiro e montmorilonita AGC-MMT foram testadas como revestimentos para amÃndoas de castanhas de caju. As amÃndoas revestidas com AGC e AGC-MMT, assim como um controle (amÃndoas sem revestimento), foram acondicionadas em sacos plÃsticos de polietileno de baixa densidade, estocadas em temperatura e umidade ambiente e tiveram sua estabilidade avaliada. Os testes de estabilidade realizados foram baseados em medidas de absorÃÃo de umidade, atividade de Ãgua e do grau de oxidaÃÃo das amÃndoas (determinado por Ãndice de perÃxido e Ãndice de acidez). O incremento de MMT interferiu nas propriedades Ãticas dos filmes, aumentando sua opacidade. A permeabilidade ao vapor de Ãgua dos filmes produzidos foi significativamente (p < 0,05) reduzida pela MMT. A resistÃncia à traÃÃo e o mÃdulo elÃstico apresentaram valores mÃximos em uma faixa intermediÃria de concentraÃÃo de MMT. O tempo de ultrassom favoreceu a dispersÃo da argila em concentraÃÃes baixas de MMT, porÃm em concentraÃÃes maiores favorece a formaÃÃo de aglomerados, o que tambÃm à visualizado nas micrografias obtidas por MEV. Com o aumento do tempo de ultrassom, a resistÃncia à traÃÃo e o mÃdulo tenderam a aumentar. As curvas de DSC do amido, goma de cajueiro e do filme produzido sem MMT apresentaram picos endotÃrmicos similares em torno de 110ÂC, que podem estar relacionados à superposiÃÃo de eventos como vaporizaÃÃo da Ãgua e fusÃo da fase cristalina dos componentes. A medida do Ãngulo de contato comprovou que os filmes produzidos sÃo altamente hidrofÃlicos. Os testes de estabilidade realizados mostram que os revestimentos AGC e AGC-MMT conferem menor acidez e Ãndice de perÃxidos quando comparados a um controle podendo ser uma alternativa para aumento da vida de prateleira das amÃndoas de castanhas de caju, servindo como embalagem primÃria. / The purpose of this study was to develop biodegradable films based on starch and cashew gum, added or not with montmorillonite. At a first stage, a central composite experimental design was carried out from mixtures of starch and cashew gum (1:1, m: m) added with different concentrations of montmorillonite (0-15% - MMT) and submitted to variable ultrasound times (0-5 min), In a study of variations in the performance of films produced by casting. The films were evaluated in terms of optical properties, mechanical, barrier and thermal. As well as scanning electron microscopy (SEM) and contact angle. In a second stage of the work, the formulations of the films based on starch and cashew tree gum (SCG) and starch cashew tree gum and montmorillonite (SCG-MMT) were tested as coatings for cashew kernels. The kernels coated with SCG and SCG-MMT, as a control (uncoated kernels) were placed in plastic bags of low density polyethylene, stored at room temperature and relative humidity and their stability were evaluated. Stability tests were based on measurements of moisture absorption, water activity and the degree of oxidation of almonds (determined by peroxide value and acid value). The increase of MMT concentration interfered with the optical properties of the films, increasing its opacity. The water vapor permeability of films was significantly (p <0.05) reduced by the MMT. The tensile strength and elastic modulus showed a peak in an intermediate range of concentration of MMT. The time of ultrasound favors the dispersion of clay in low concentrations of MMT, but at higher concentrations et led to formation of agglomerates, which also appeared in SEM micrographs. With the increase of ultrasound times tensile strength and modulus tended to increase. DSC curves of starch, cashew gum and the film produced without MMT the endothermic peaks had similar MMT about 110  C, that may be related superposition events such as the vaporization of water and melting of the crystalline phase of the components. The contact angle measurement showed that the films are highly hydrophilic. Stability tests performed show that the coatings AG and AG-MMT give less acidity and peroxide value when compared to a control, may be an alternative of the use to increase the shelf life of almonds cashew nuts serving as primary packaging.

O conforto é um aspecto muito importante ao se tratar de vestuário, por isso cada vez mais estão sendo desenvolvidos tecidos com características específicas para proporcionar conforto nas mais diversas situações de uso. Dentro desse contexto, o conforto térmico fisiológico tem papel fundamental e um dos seus pontos chave é a capacidade dos têxteis de gerenciar a umidade proporcionada pelo processo de suor do corpo. O equipamento Moisture Management Tester (MMT) foi desenvolvido para possibilitar uma avaliação prática e confiável dessa propriedade dos tecidos e permite calcular um índice que reflete a capacidade global de gestão de umidade (OMMC) das amostras analisadas. O objetivo desse trabalho é realizar uma avaliação dos resultados obtidos no equipamento MMT em tecidos de malha fabricados com diversos tipos de fios e de contexturas e comparar os resultados com outros métodos de medida de gerenciamento de umidade, para verificar a eficácia do equipamento em quantificar a diferença de comportamento entre os tecidos analisados. Através da análise estatística concluiu-se que a metodologia utilizada no MMT possui uma divisão mais equilibrada da influência dos fatores para os resultados encontrados, sendo mais fiel ao que acontece com o tecido na pratica, com resultados mais representativos, pois todos os fatores que interferem nos resultados são consideração de maneira equilibrada / Comfort is a very important aspect related to garments, that is why fabrics containing specific characteristics to provide comfort in all kinds of situations are being developed. Within this context, the physiological thermal comfort plays a crucial role and one of his key points is the ability of textile to manage moisture provided by the body sweat process. The Moisture Management Tester (MMT) methodology was developed to enable a practical and reliable evaluation of this property of fabrics and allows the calculation of an index that reflects the overall moisture management capacity (OMMC) of the samples. The objective of this was to provide an evaluation of the results obtained on MMT on different types of yarn and knits compared to other moisture management methods of measurement, and intending to verify the effectiveness of the equipment to quantify the difference in behavior among the analyzed fabrics. Through statistical analysis, it was concluded that the methodology used in MMT has a more balanced division of the factors influence in founded results, seen as more faithful to what happens to fabric in practice, with more representative results because all factors that interfere in the results are considered in a balanced way

This study investigates the software automation and control framework for the MMT thermal system. Thermal-related effects on observing and telescope behavior have been considered during the entire software development process. Regression analysis of telescope and observatory subsystem data is used to characterize and model these thermal-related effects. The regression models help predict expected changes in focus and overall astronomical seeing that result from temperature variations within the telescope structure, within the primary mirror glass, and between the primary mirror glass and adjacent air (i.e., mirror seeing). This discussion is followed by a description of ongoing upgrades to the heating, ventilation and air conditioning (HVAC) system and the associated software controls. The improvements of the MMT thermal system have two objectives: 1) to provide air conditioning capabilities for the MMT facilities, and 2) to modernize and enhance the primary mirror (M1) ventilation system. The HVAC upgrade necessitates changes to the automation and control of the M1 ventilation system. The revised control system must factor in the additional requirements of the HVAC system, while still optimizing performance of the M1 ventilation system and the M1's optical behavior. An industry-standard HVAC communication and networking protocol, BACnet (Building Automation and Control network), has been adopted. Integration of the BACnet protocol into the existing software framework at the MMT is discussed. Performance of the existing automated system is evaluated and a preliminary upgraded automated control system is presented. Finally, user interfaces to the new HVAC system are discussed.

As part of the effort to increase the reliability of the MMT Observatory (MMTO) 6.5m Primary Mirror Coating System, the specified filament has changed from a configuration in which the aluminum charge is hand wound around a tungsten filament to a configuration in which the aluminum is integrally wound with the tungsten at the time of filament manufacture. In the MMTO configuration, this filament consists of the three strands of tungsten wire and one strand of aluminum wire. In preparation of a full system test utilizing two hundred filaments fired simultaneously, an extensive testing program was undertaken to characterize these filaments using a four filament configuration in the MMTO small coating chamber (0.5m) and then a forty filament configuration in the University of Arizona Steward Observatory coating chamber (2m). The testing using the smaller coating chambers has shown these filaments provide very predicable coatings from test to test, and with the proper heating profile, these filaments greatly reduce the likelihood of aluminum drips. The initial filament design was modified during the course of testing by shortening the unwound filament length to closer match the aluminum load required in the MMTO coating chamber. This change increased the aluminum deposition rates without increasing the power delivered of the filament power supplies (commercial welders). Filament power levels measured at the vacuum chamber feedthroughs, currents, and deposition rates from multiple coating tests, including a full system test, are presented.

This thesis will apply performance criticism to ancient Jewish letters in order to answer two connected questions. First, how do we adequately describe the form and function of letters as they were read in antiquity in order to be able to define the genres of letters in a more precise way and second, to consider how performance theory in conjunction with other approaches can be applied to ancient letters. In order to address these concerns, we will include examples of free-standing letters from Elephantine, embedded Hebrew and Aramaic letters, and embedded Greek letters. By studying these texts, we will gain a substantial perspective on the variety of Second Temple period letters and we will be able to consider how probing the form and function of those letters may be applied for a better understanding of MMT. The intent of this inquiry is to help explain how MMT, or a section thereof, may have been performed in various situations and thereby provide a clearer view of the genre(s) of MMT.

Through the study of OK KO! Let’s Be Heroes! and The Amazing World of Gumball, I argue that children’s cartoons represent and recreate anxieties toward money’s plasticity in the plasticity of the cartoon bodies and worlds. I closely examine the ambivalence towards abstraction’s plasticity in contemporary children’s cartoons to trace the neoliberal ambivalence towards money’s plasticity. While much scholarship has grappled with what can be understood as animatic plasticity, very little of it takes on the questions raised about neoliberal culture by televised children’s cartoons. Cartoons are important to study in this respect because their form allows for unbridled plasticity. Cartoons provide the artists with the freedom to create characters and worlds that are as bound or unbound to our world’s norms and natural laws, unlike in other live action moving media. It combines this with the dynamic, temporal component of moving image media. Unlike a surreal painting, cartoons are capable of dynamic movement and transformation, even in their non-moving image form as comics. However, this plastic dynamism is most fully realized in the animated form, as the characters are capable of movement and change regardless of the viewers’ presence. Contemporary cartoons like OK KO and Gumball asymmetrically mobilize this plasticity by rendering the characters’ bodies as highly plastic while presenting their worlds as comparatively static. This aesthetic practice suggests that the world cannot be reshaped for a variety of reasons, so the only thing that individuals can do is try to change themselves as necessary to accommodate it. Thus, what at first blush looks like a celebration of plasticity is in reality a celebration of mere flexibility, which enables and perpetuates neoliberal power structures. Yet these same shows simultaneously challenge the neoliberal aesthetic project in their hyper-mobilization of non-diegetic plasticity. When the shows mobilize their plasticity in a way that is not narratively impactful, such as through cutaways, inserts, or other asides, the plasticity is instead framed as comedic and thus enjoyable. This suggests that while presenting character and world plasticity as equally valid would be natural next step for animated aesthetics, the major limitation contemporary animation faces is in reality the uneven treatment of diegetic and non-diegetic plasticity.

Solvent suspensions of a high performance polymer, Polyamide-imide (PAI) are widely used in magnetic wire coatings. Here we investigate the effect that the introduction of montmorillonite (MMT) has on PAI. MMT was introduced into an uncured PAI suspension; the sample was then cured by step-wise heat treatment. Polarized optical microscopy was used to choose the best suitable MMT for PAI matrix and to study the distribution of MMT in PAI matrix. Concentration dependent dispersion effect was studied by x-ray diffraction (XRD) and was confirmed by Transmission electron microscopy (TEM). Differential scanning Calorimetry (DSC) and Thermogravimetric analysis (TGA) was used to study impact of MMT on glass transition temperature (Tg) and degradation properties of PAI respectively. Micro-hardness testing of PAI nanocomposites was also performed. A concentration dependent state of dispersion was obtained. The glass transition (Tg), degradation and mechanical properties were found to correlate to the state of dispersion.

Mémoire numérisé par la Direction des bibliothèques de l'Université de Montréal.

The aim of this paper is to investigate how media-multitasking (MMT) affects cognitive abilities, particularly concentration. MMT is becoming increasingly popular, especially among those aged 16-25, and concerns have been raised about its impact on attention spans, particularly with the widespread use of the social media app TikTok. To explore this relationship, a test group of 26 computer science and media technology students were asked to watch a video and answer questions based on it. The participants were divided into three groups that performed the test with varying levels of visual multitasking. The results showed that multitasking had a slight negative impact on cognitive ability, with better performance on visual questions when participants were not multitasking, and better performance on sound-based questions when they were multitasking. Overall, the study suggests that while multitasking can overload certain senses, it can also enhance alertness and concentration if not taken to cognitive overload. / Syftet med denna uppsats är att undersöka hur media-multitasking (MMT) påverkar hjärnans olika kognitiva modaliteter, dvs olika former av kognitivt uppfattande eller sätt att bearbeta information, och då kopplat specifikt till koncentration. MMT blir allt mer populärt och särskilt bland personer i åldrarna 16-25. Oro har väckts kring hur MMT påverkar uppmärksamheten, särskilt vid användning av den sociala appen TikTok. För att undersöka detta förhållande bads en testgrupp, bestående av 26 studenter inom datavetenskap och medieteknik, att titta på en video samt besvara frågor baserade på den. Deltagarna delades in i tre grupper som utförde testet på olika nivåer av visuell multitasking. Resultatet visade att multitasking hade en minimal till oansenlig negativ påverkan på prestation inom de provade modaliteterna. Deltagarna presterade bättre på visuella frågor när deltagarna inte multitaskande. Resultatet visade att svaren på de ljudbaserade frågorna förbättrades till viss del när testgruppen multitaskade. Sammantaget kan studien inte dra några säkra slutsatser, men det finns indikationer på att multitasking kan överbelasta vissa sinnen samtidigt som det kan underlätta för individer att förbli alerta och därmed förbättra koncentrationen, förutsatt att det inte leder till kognitiv överbelastning.