International Telemetering Conference Proceedings / October 17-20, 1988 / Riviera Hotel, Las Vegas, Nevada / Digital-based linear-array chart recorders are replacing conventional stylus recorders in telemetry data stations everywhere. They offer advantages in virtually all respects, and are becoming indispensable. But because of the completely different writing method and technology employed, it is difficult to make completely analogous performance comparisons between analog and digital chart recorders. This has led to some confusion when replacing aging stylus recorders is contemplated. Objectives: Establish a set of universal, standardized performance characteristics for digital chart recorders. Introduce appropriate terminology, allowing valid, repeatable comparison of old and new systems.

As research into the dynamic characteristics of job performance across time has continued to accumulate, associated implications for performance appraisal have become evident. At present, several studies have demonstrated that systematic trends in job performance across time influence how performance is ultimately judged. However, little research has considered the processes by which the performance trend-performance rating relationship occurs. In the present study, I addressed this gap. Specifically, drawing on attribution theory, I proposed and tested a model whereby the performance trend-performance rating relationship occurs through attributions to ability and effort. The results of this study indicated that attributions to ability, but not effort, mediate the relationship between performance trend and performance ratings and that this relationship depends on attribution-related cues. Implications for performance appraisal research and theory are discussed.

O presente trabalho teve como objetivo estudar sobre o modo de produção da cerâmicas arqueológicas da T. I. Koatinemo, e desse modo oferecer mais informações sobre o longo e contínuo processo de ocupações indígenas da Amazônia. A partir da caracterização arqueométrica dos fragmentos de vasilhas algumas questões foram investigadas como: quais foram as escolhas das fontes argilosas feitas pelos ceramistas, como foi o processo de manufatura e qual temperatura máxima na qual as peças foram queimadas, bem como sobre qual é a performance final das vasilhas. Os equipamentos utilizados foram a Fluorescência de Raios X, a Difração de Raios X, a Radiografia, a Microscopia Eletrônica de Varredura e a Petrografia. Assim, a partir das características físicas, químicas e mineralógicas das peças, muito pode ser entendido sobre os comportamentos dos antigos ceramistas, bem como sobre os grupos indígenas a que pertenciam. / The present work aimed to study the production process of I. L. Koatinemo\'s archeological ceramics, and thus to offer more information about the long and continuous process of indigenous occupations of the Amazon. From the archaeometric characterization of the pot fragments, some questions were investigated such as: what were the choices of the clay sources doneby the ceramists, the manufacturing process and the maximum quality in which the pieces were burned, as well as what resulted as a final performance of the vessel. The equipments used were X-Ray Fluorescence, X-Ray Diffraction, Radiography, Scanning Electron Microscopy and Petrography. Thus, from the physical, chemical and mineralogical characteristics of the pieces, much could be understood about the behaviors of the ceramists, as well as about the indigenous groups that they belonged to.

Este trabalho apresenta os resultados do estudo inicial das características tecnológicas do material cerâmico arqueológico coletado na Terra Indígena (T. I.) Kaiabi, localizada na região do baixo rio Teles Pires (Mato Grosso/Pará). Esta área ainda é bastante desconhecida do ponto de vista arqueológico, inserindo-se em um contexto que se relaciona tanto com o Brasil Central como com a Amazônia Meridional, tendo sido palco de ocupações e deslocamentos de diferentes populações indígenas ao longo do tempo. Para compreender melhor o que siginificam os conjuntos cerâmicos neste contexto, analisamos o material cerâmico com base na noção de cadeia operatória de produção cerâmica (Lemonnier) e nas características de performance dos materiais e objetos (Schiffer e Skibo), entendendo que para cada operação dentro da sequência de produção existe uma escolha feita pela ceramista que é determinada a partir de princípios culturalmente definidos, revelando diferentes modos de se fazer cerâmica, os chamados estilos tecnológicos. / This paper presents the results of the initial study of the technological characteristics of the archaeological ceramic material colected in the Indigenous Land (T. I.) Kaiabi, located in the Lower Teles Pires River (Mato Grosso/Pará). This area is still largely unknown from the archaeological point of view, being part of the near context of both Central Brazil and Southern Amazon, which may have been the scene of occupations and displacements of different indigenous populations over time. To better understand the meanings of the ceramic sets within this context, we analyze the ceramic material based on the notion of chain operatoire (Lemonnier) and the performance characteristics of materials and objects (Schiffer and Skibo), understanding that for each operation within the production sequence there is a choice made by the potter which is determined by culturally defined principles, revealing different ways of making pottery, the so-called technological styles.

O presente trabalho teve como objetivo estudar sobre o modo de produção da cerâmicas arqueológicas da T. I. Koatinemo, e desse modo oferecer mais informações sobre o longo e contínuo processo de ocupações indígenas da Amazônia. A partir da caracterização arqueométrica dos fragmentos de vasilhas algumas questões foram investigadas como: quais foram as escolhas das fontes argilosas feitas pelos ceramistas, como foi o processo de manufatura e qual temperatura máxima na qual as peças foram queimadas, bem como sobre qual é a performance final das vasilhas. Os equipamentos utilizados foram a Fluorescência de Raios X, a Difração de Raios X, a Radiografia, a Microscopia Eletrônica de Varredura e a Petrografia. Assim, a partir das características físicas, químicas e mineralógicas das peças, muito pode ser entendido sobre os comportamentos dos antigos ceramistas, bem como sobre os grupos indígenas a que pertenciam. / The present work aimed to study the production process of I. L. Koatinemo\'s archeological ceramics, and thus to offer more information about the long and continuous process of indigenous occupations of the Amazon. From the archaeometric characterization of the pot fragments, some questions were investigated such as: what were the choices of the clay sources doneby the ceramists, the manufacturing process and the maximum quality in which the pieces were burned, as well as what resulted as a final performance of the vessel. The equipments used were X-Ray Fluorescence, X-Ray Diffraction, Radiography, Scanning Electron Microscopy and Petrography. Thus, from the physical, chemical and mineralogical characteristics of the pieces, much could be understood about the behaviors of the ceramists, as well as about the indigenous groups that they belonged to.

Due to the recent production and popularity of the textile fabric rayon from bamboo, relatively little information is available regarding related performance characteristics. This thesis serves to evaluate the performance of rayon from bamboo in the bed sheet application. Three tests were conducted to determine dimensional stability, fabric hand, and weight, thickness, and density of the rayon from bamboo throughout twelve laundering cycles. Results indicate a lack of dimensional stability, superior hand, and acceptable changes in weight, thickness, and density.

Today, numerous alternative modes of mobility are emerging to provide a solution to the problems created by the automobile. This research envisions a future where transportation in urban areas will be dominated by small personal mobility devices (PMDs) instead of automobiles. This Intelligent Mobility System (IMS) would be a car-free zone where people travel by a shared-system of PMDs providing levels of mobility greater than walking but less than a car. This research effort focuses on the operational aspects of this future system by studying PMD performance characteristics as inputs for a computer simulation model of an IMS environment. Therefore, the primary objective of this research is to evaluate the operations of PMDs that are currently used in a variety of settings. GPS recorders are used to log speed and location data each second of pedestrian, bicycle, Segway, and electric cart trips. Segway speed and acceleration are analyzed using three factors, sidewalk width, surface quality, and pedestrian density to study their effect on Segway speed. Pedestrians have the lowest mean speed and the most narrow speed distribution. Segways, bicycles and electric carts have increasingly faster mean speeds and wider speed distributions, respectively. Segways and bicycles were found to have similar acceleration distributions. Segways seem to provide a level of speed and mobility between that of pedestrians and cyclists, meaning that Segways might capture new users by providing a level of mobility and convenience previously unseen. Narrow sidewalk widths, poor sidewalk quality, and heavy pedestrian density all decreased Segway speeds. The researchers suspect that surface quality is likely an independent constraint for Segway speed and that sidewalk width and pedestrian density interact to limit Segway speeds under certain conditions. This research concludes that these external factors may affect PMD speed and should be considered when analyzing PMD mobility, especially in an IMS setting.

It is an important issue for manufacturing and operation to formulate reliability about the effects of the moisture absorption and IR reflow parameters on IC packages. Two problems, the warpage of the thin IC package, and characterizing the adhesion features of IC package¡¦s interface, are studied in this dissertation. In a thin IC package, the CTE and CHE mismatch between materials are primarily attributed to the warpage which occurs when the package is being mounted on a PCB. The existence of defects in the corresponding interfaces can gradually degrade the interfacial adhesion when IC package is exposed to the high temperature and humidity. In this dissertation, the stability equations for the warpage in a thin IC package without the solder balls being subjected to hygrothermal loading, by modeling it as an initially perfect/imperfect composite plate, is developed. The analytical closed-form solutions are found and used to compute not only the critical moisture content but also the warpage occurrence before the critical loads are reached. The hygrothermal buckling phenomenon is checked by shadow moiré whole-field maps with different moisture content. The results indirectly indicate that the thin PBGA package has little imperfection. For characterizing the adhesion features of IC package¡¦s interface, the fuzzy controller is used to stabilize multiple performance characteristics, i.e., the moisture weight gain and adhesion strength, for the button shear test specimen. Parameters design, although based on the Taguchi method, can optimize the performance characteristic through the setting of process parameters and can reduce the sensitivity of the system performance to sources of variation. The control rules of the fuzzy controller were formed using the author¡¦s experience and knowledge of IC packaging process. The control parameters to be tuned were the membership functions. Therefore, the controller¡¦s performance depended on the membership functions. The fuzzy controller combined Taguchi parameter design, which makes the control performance insensitive to the operating condition change and noise, was used to determine the membership functions.

ABSTRACT CONCEPTUAL INTERNAL DESIGN AND COMPUTATIONAL FLUID DYNAMICS ANALYSIS OF A SUPERSONIC INLET ALEMDAROgLU, Mine M. S., Department of Aerospace Engineering Supervisor: Prof. Dr. Yusuf &Ouml / ZY&Ouml / R&Uuml / K May 2005, 144 pages In this thesis, the conceptual internal design of the air inlet of a supersonic, high altitude, solid propellant ramjet cruise missile is performed. Inviscid, compressible CFD analysis of the designed inlet is made in order to obtain qualitative and quantitative performance characteristics of the inlet at different operating conditions. The conceptual design of the inlet is realized by using analytical relations and equations, correlations derived from numerous available past experimental data and state-of-the-art design examples. The performance estimation of the designed inlet at different operating conditions is done by using one and two dimensional gas dynamics equations. The results of the performance estimation study are compared with the results of the CFD analysis and these results are discussed in detail. A commercial tool, CFD-FASTRAN&Ograve / , is used for the CFD analysis. Inlet flow phenomena such as, different shock patterns and shock positions, performance degradation at off-design operating conditions and inlet unstart are observed. Keywords: Supersonic Inlet, Ramjet, CFD, Inlet Performance Characteristics, Operating Conditions, Unstart

The increasing number of small and fragile parts that are being manufactured using micromachining technology has raised the demand for co-ordinate measurement machines (CMM) that can measure on a micro- and millimetric scale without contacting the part, thus avoiding damage to the surface of the part. These instruments are expected to measure on a micro- and millimetric scale with a measuring uncertainty in the nanometre range. A number of techniques used for contactless surface measurements exist, such as the focus variation (FV) technique, which have the ability to perform measurements on the micro- and millimetric scale in a short amount of time. These instruments may have the potential to be implemented in a non-contact micro-CMM platform.