Tesi: "Implements"

1

Fielke, John Milton. "Interactions of the cutting edge of tillage implements with soil". Title page, table of contents and abstract only, 1994. http://web4.library.adelaide.edu.au/theses/09PH/09phf463.pdf.

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2

Bronder, Justin S. "The AKS Class of Primality Tests: A Proof of Correctness and Parallel Implementation". Fogler Library, University of Maine, 2006. http://www.library.umaine.edu/theses/pdf/BronderJS2006.pdf.

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3

Wilson, Jennifer Keeling. "Curation and lithic technological organization studies on the Owyhee River : a case study of the Chalk Basin site (35ML143), Malheur County, Oregon". Online access for everyone, 2007. http://www.dissertations.wsu.edu/Thesis/Spring2007/J_Wilson_042507.pdf.

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4

Haresign, Stephen. "The development of a procedure to evaluate the wear rate of soil engaging equipment". Thesis, Cranfield University, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.269473.

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5

Meadows, Richard Keith. "Crafting K'awil : a comparative analysis of Maya symbolic flaked stone assemblages from three sites in northern Belize /". Access restricted to users with UT Austin EID Full text (PDF) from UMI/Dissertation Abstracts International, 2001. http://wwwlib.umi.com/cr/utexas/fullcit?p3034984.

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6

Alam, Mohammed Monjurul. "Soil reaction forces on agricultural disc implements". Thesis, University of Newcastle Upon Tyne, 1989. http://hdl.handle.net/10443/996.

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Theoretical models for the prediction of the performance of wide cutting blades have been in existence for some time. These models characterise the soil as a rigid-plastic Mohr-Coulomb material and depend on advanced mathematical techniques developed for the solution of the complex equations of equilibrium of soil elements in two-dimensional plane-strain failure. Less rigorous techniques have been employed for developing mathematical models for the behaviour of deep narrow tines. In both cases the soil-implement contact boundary is assumed to be a plane surface of simple geometrical shape. The extension of these methods to deal with three-dimensional failure generated by curved loading boundaries is of comparatively recent origin. The soil failure patterns associated with disc soil cutting implements fall into this category. The thesis describes the development of a mathematical model for predicting the performance of such implements. The method employed follows the technique used by Godwin et al for reducing three-dimensional failure into two-dimensional components. The present analysis caters for discs implements having both inclination and disc angles. Soil contact in such implements takes place on complex curved surfaces and the geometry of these were analysed. These surfaces were approximated by plane elements which were then assumed to generate two-dimensional failure in planes parallel to the direction of translation of the disc. The rupture geometry and the forces acting on these elements are then computed using the Newcastle adaptation of Sokolovski's rigorous solution to soil failure. The force acting on the soil contact surface is then obtained by a version of the method of slices used for analysing slip surfaces. The model developed can predict the quasi-static soil reactions on disc implements from a knowledge of the disc geometry, soil properites and depth of cut. The computer programme was used to investigate the sensitivity of the input parameters to the final predicted results and this information was used to develop a set of non-dimensional force coefficients which can be used in a simple additive algebraic equation to predict the three orthogonal force components acting on the disc. Empirical correction factors have been devised to cater for deviations between these and computed valus and prediction to within 5 percent of the computer prediction are possible by this relatively simple method. In order to check the performance of this theoretical model a special dynamometer rig was designed and built to assess all three orthogonal force components acting on a disc tool. A single plough disc was tested in a loam soil and the computer prediction was in good agrement with experimental values. The model was also used to check other published experimental results and once again the prediction was good.

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7

Donglei, Y. "Analysis of dynamic loading on cultivation implements". Thesis, University of Newcastle Upon Tyne, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.376227.

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8

Hambly, Derek Thomas. "A SCHOLAR'S MUSES AND A CRAFTSMAN'S IMPLEMENTS". Kent State University / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=kent1279121892.

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9

Bakewell, Edward F. "The archaeopetrology of vitrophyric toolstones, with applications to archaeology in the Pacific Northwest /". Thesis, Connect to this title online; UW restricted, 2005. http://hdl.handle.net/1773/6429.

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10

Tingle, Martin. "The prehistoric exploitation of flint at Beer Head". Thesis, University of Reading, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.319242.

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11

Wittner, Otto. "Emergent behavior based implements for distributed network management". Doctoral thesis, Norwegian University of Science and Technology, Department of Telematics, 2003. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-1787.

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Network and system management has always been of concern for telecommunication and computer system operators. The need for standardization was recognised already 20 years ago, hence several standards for network management exist today. However, the ever-increasing number of units connected to networks and the ever-increasing number of services being provided results in significant increased complexity of average network environments. This challenges current management systems. In addition to the general increase in complexity the trend among network owners and operators of merging several single service networks into larger, heterogeneous and complex full service networks challenges current management systems even further. The full service networks will require management systems more powerful than what is possible to realize basing systems purely on todays management standards. This thesis presents a distributed stochastic optimization algorithm which enables implementations of highly robust and efficient management tools. These tools may be integrated into management systems and potentially make the systems more powerful and better prepared for management of full service networks.

Emergent behavior is common in nature and easily observable in colonies of social insects and animals. Even an old oak tree can be viewed as an emergent system with its collection of interacting cells. Characteristic for any emergent system is how the overall behavior of the system emerge from many relatively simple, restricted behaviors interacting, e.g. a thousand ants building a trail, a flock of birds flying south or millions of cells making a tree grow. No centralized control exist, i.e. no single unit is in charge making global decisions. Despite distributed control, high work redundancy and stochastic behavior components, emergent systems tend to be very efficient problem solvers. In fact emergent systems tend to be both efficient, adaptive and robust which are three properties indeed desirable for a network management system. The algorithm presented in this thesis relates to a class of emergent behavior based systems known as swarm intelligence systems, i.e. the algorithm is potentially efficient, adaptive and robust.

On the contrary to other related swarm intelligence algorithms, the algorithm presented has a thorough formal foundation. This enables a better understanding of the algorithm’s potentials and limitations, and hence enables better adaptation of the algorithm to new problem areas without loss of efficiency, adaptability or robustness. The formal foundations are based on work by Reuven Rubinstein on cross entropy driven optimization. The transition from Ruinstein’s centralized and synchronous algorithm to a distributed and asynchronous algorithm is described, and the distributed algorithm’s ability to solve complex problems (NP-complete) efficiently is demonstrated.

Four examples of how the distributed algorithm may be applied in a network management context are presented. A system for finding near optimal patterns of primary/backup paths together with a system for finding cyclic protection paths in mesh networks demonstrate the algorithm’s ability to act as a tool helping management system to ensure quality of service. The algorithm’s potential as a management policy implementation mechanism is also demonstrated. The algorithm’s adaptability is shown to enable resolution of policy conflicts in a soft manner causing as little loss as possible. Finally, the algorithm’s ability to find near optimal paths (i.e. sequences) of resources in networks of large scale is demonstrated.

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12

Cormack, Julie Lindgren. "Early Stone Age heavy duty implements of Africa". Thesis, University of Liverpool, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.387264.

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13

Levi, Sala Irene. "A study of microscopic polish on flint implements /". [Oxford] : Tempus reparatum, 1996. http://catalogue.bnf.fr/ark:/12148/cb358401027.

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14

Silva, Valéria Cristiane Oliveira. "Análise de casos de implementação de produção enxuta em empresas brasileiras de máquinas e implementos agrícolas". Universidade de São Paulo, 2006. http://www.teses.usp.br/teses/disponiveis/18/18140/tde-07062006-120148/.

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Atualmente as organizações buscam uma vantagem competitiva para atender melhor seus clientes, através da implementação de processos produtivos que possibilitem esta melhoria. Neste contexto, a produção enxuta vem ajudando as empresas brasileiras na busca deste diferencial através de melhoria de processos e produtos. Este trabalho visa mostrar como as empresas nacionais de máquinas e implementos agrícolas estão implementando este conceito, quais práticas estão sendo utilizadas e os resultados obtidos até o momento. Para isso foram pesquisados nove casos de aplicação em empresas do setor, oito no Estado de São Paulo e uma no Estado do Paraná. Foram feitas entrevistas estruturadas através do uso de um questionário projetado para este fim. O trabalho também apresenta uma análise crítica das implementações e faz sugestões para estudos futuros, de modo a auxiliar o setor e fortalecer a disseminação do conceito de produção enxuta.
Organizations are looking nowadays for a competitive advantage to better assist their customers needs through the implantation of more efficient productive processes. In this context, lean production concepts are helping brazilian companies to discover the differential through the processes and products improvement. This work shows how the agricultural machines and implements companies are implementing this concept, which practices that are being used and the results obtained until the moment. For that, nine cases were researched, at eight companies in the State of São Paulo and one in the State of Paraná, through the use of an especially designed questionnaire. The work also presents a critical analysis of the implantation and makes suggestions for future studies, in way to aid the sector and to fortify the dissemination of the lean production concepts.

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15

McCutcheon, Patrick T. "Archaeological investigations of stone tool heat-treatment technology in southeastern Missouri : an experimental approach /". Thesis, Connect to this title online; UW restricted, 1997. http://hdl.handle.net/1773/6451.

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16

Seong, Chuntaek. "Raw materials and evolution of lithic technology in Upper Pleistocene Korea /". Thesis, Connect to this title online; UW restricted, 2001. http://hdl.handle.net/1773/6466.

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17

Nagel, Julia. "Fascin implements the distinction between two sensory neuron morphologies". Diss., lmu, 2011. http://nbn-resolving.de/urn:nbn:de:bvb:19-148224.

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18

Magalhäes, Paulo Sergio Graziano. "An investigation into the grade dynamics of drainage implements". Thesis, Cranfield University, 1985. http://dspace.lib.cranfield.ac.uk/handle/1826/3883.

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The use of the trenchless plough drainage implement has increased in the past few years due to its efficiency and cost advantages over other methods. However, the performance of these machines when working in fields with irregular soil conditions is not yet satisfactory. It is important therefore to study the soil parameters and conditions which could affect the implement behaviour under these circumstances. Therefore, a detailed investigation of the soil reaction forces acting upon a scale model of the trenchless plough was conducted under controlled conditions in a soil laboratory. The model was tested first under restricted conditions of movement, in order to observe and determine all the possible soil reaction forces. The tine, due to its geometric characteristics, was classified as a very narrow tine, and an existing model to predict the soil reaction force acting on the front face of these tines was extended to predict the forces on the sides. Since the length of the failure plane ahead of the tine is often required in the investigation of the soil reaction forces, a mathematical solution based on the Coulomb principle of Passive Earth Pressure was presented to estimate the soil failure pattern. There was good agreement between the values of the angle of the shear plane predicted by this method and the experimental data obtained from the glass sided tank tests. Dynamic tests were conducted with the implement assembled with a long floating beam arrangement assisted by a small link (free-link), used between the hitch-point and the pivoted end of the beam. These tests revealed that, when working over irregular soil conditions a better grade control can be obtained if the hitch-point is kept at constant level in reference to a desired line. In the case where field irregularities persist for long (step inputs), corrections in the hitch-point height might be necessary. These tests show that the implement depth changes in different proportion in relation to the hitch-point height. Where no control is imposed on the hitch-point, the path of the implement is attenuated in relation to the hitch-point position, where better results are obtained for high frequency of the hitch-point. A mathematical solution based on these findings and on the dynamic balance of the forces acting on the system was presented. Since it is an interactive method and requires long and repetitive calculations, a computer programme was developed and used to predict the response of the implement under these uneven conditions. Good agreement between data and estimated values suggested that the method is acceptable.

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19

Mello, Claudia Assad. "Projeto, implementação e capacitação tecnica para a fabricação de multi-implementos de tração animal : uma validação no assentamento rural Pirituba II (Itapeva/SP)". [s.n.], 2007. http://repositorio.unicamp.br/jspui/handle/REPOSIP/257043.

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Orientador: Antonio Jose da Silva Maciel
Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Agricola
Made available in DSpace on 2018-08-11T01:07:09Z (GMT). No. of bitstreams: 1 Mello_ClaudiaAssad_M.pdf: 6358584 bytes, checksum: 89956ba6ce15129261ba8866d6865769 (MD5) Previous issue date: 2007
Resumo: O presente trabalho teve como objetivo geral proporcionar o uso da tração animal, por meio de transferência tecnológica aos agricultores do Assentamento Rural Pirituba II, através de uma capacitação técnica para a fabricação de um Multi-Implemento buscando, desta forma, viabilizar neste assentamento a produção agrícola com a geração de trabalho e renda. Foram realizadas visitas à Cooperativa Regional e às propriedades, bem como reuniões com os agricultores. Procurou-se discutir com os mesmos, o sistema de tração animal e a implementação de uma fábrica para capacitação técnica. A construção deste trabalho foi baseada em alguns princípios da metodologia da pesquisa-ação, buscando a resolução de um problema coletivo com a participação dos agricultores. A metodologia para implementação do processo de fabricação dos multiimplementos de tração animal consistiu em proporcionar aos assentados um conjunto de materiais e recursos técnicos, incluindo equipamentos, materiais de construção, acessórios, gabaritos e um manual didático para a construção do multi-implemento, contendo todos os desenhos de construção. A capacitação técnica dos agricultores foi realizada no mês de agosto de 2007, com duração de 7 dias. Todas as etapas de fabricação do multi-implemento foram realizadas com êxito. Os agricultores fabricaram 3 multi-implementos de tração animal. Durante o curso de capacitação técnica, realizou-se uma avaliação de desempenho dos agricultores. Como resultado desta avaliação, obteve-se um desempenho excelente dos agricultores. Sendo assim, concluiu-se que os mesmos estão aptos a multiplicar esta tecnologia para este assentamento. Após a capacitação técnica, foram realizados testes de funcionabilidade com os multi-implementos. Verificou-se que a profundidade de trabalho do arado de aiveca e a do sulcador com extensão, estiveram muito próximas dos valores citados na literatura. Através da transferência tecnológica, foi proporcionado o uso da tração animal, pois após a capacitação técnica dos agricultores para a fabricação dos multi-implementos de tração animal, estes implementos estão sendo utilizados, neste assentamento, nas operações de preparo, plantio e cultivo
Abstract: The main objective of this work was to provide the use of the animal traction, by means of technological transference, to the agriculturists of the Assentamento Rural Pirituba II, through a qualification technique for the fabrication of a Multi-Implement, having the objective to make possible, in this settlement the agricultural production with the generation of jobs and income. Visits to the Regional Cooperative and the properties had been carried through, as well as meetings with the agriculturists. It was looked to argue with them the animal drawn system and the implementation of a workshop for the technique qualification technique. The construction of this work was based on some principles of the methodology of the research-action, having searched the resolution of a collective problem with the participation of the agriculturists. The methodology for implementation of the process of construction of the animal traction multi-implements consisted of providing to the agriculturists a set of materials and technician resources, including equipment, materials of construction, accessories, answer sheets and a didactic manual for the construction of multi-implement, possessing all the construction drawings. The technique qualification of the agriculturists was carried through in the month of August of 2007, with duration of 7 days. All the construction stages had been carried through with success. The agriculturists had constructed 3 animal drawn multi-implements. During the qualification course technique, an evaluation of the performance of the agriculturists was carried through. As result of this evaluation, an excellent performance of the agriculturists was gotten. Being thus, one concluded that the same ones are apt to multiply this technology for this settlement. After the technique qualification, tests of functionality had been carried through with the multi-implements. It was verified that depth of work of the moldboard plough and the furrow with extension had been very next to the values cited in literature. Through of technological transference, was provided the use of the animal traction, since after the technique qualification of the agriculturists for the construction of the animal traction multi-implements, these implements are using, in this settlement, in the operations of preparation, plantation and culture
Mestrado
Maquinas Agricolas
Mestre em Engenharia Agrícola

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20

Terry, Karisa. "Extreme measures Upper Paleolithic raw material provisioning strategies and settlement of the Transbaikal region, Siberia /". Pullman, Wash. : Washington State University, 2010. http://www.dissertations.wsu.edu/Dissertations/Spring2010/k_terry_040710.pdf.

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21

Purdue, Carla J., e n/a. "What is a fern-root beater? The correlation of museum artefacts and ethno-historical descriptions". University of Otago. Department of Anthropology, 2002. http://adt.otago.ac.nz./public/adt-NZDU20070508.135954.

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The rhizome of the bracken fern was an important part of the subsistence base of the pre-contact Maori of Aotearoa. It provided an essential source of starch - especially to the southern Maori, who relied mainly upon wild resources for the vegetable component of their diet. The preparation of the rhizome (or fern-root) for consumption necessitated the beating of the cooked root upon a smooth stone anvil. The implement that was used to beat the fern-root is an important Maori tool which, until now, has had little detailed attention paid to it. Therefore, the aim of this research was to characterize the form of the fern-beater using morphological attributes. Through the combination of a comprehensive literature review of enthographic-historical accounts and more contemporary documentary research, along with a nationwide survey of implements labelled as "fern-root beaters" in museum collections, this thesis identifies a number of critical and common attributes that are inherent in a beating implement. It was found that wooden and stone beaters/pounders were dissimilar in size and proportions, with the majority of wooden implements displayed larger circumference dimensions, were shorter and considerably heavier, thus casting some doubt on their practicality as a beating implement. Four distinct morphological forms were identified for both the wooden and stone items surveyed, and it was found that metric variables were more significant in suggesting function than non-metric. Regional distribution analysis of the survey implements highlighted a northern North Island predominance, particularly in the Northland, Auckland, Taranaki and Waikato regions. A tenuous comparison with Simpson�s distribution of prehistoric dental attrition known as "fern-root plane" showed a loose regional correlation, however; the actual cause of this tooth wear is still a hotly contested issue.

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22

Jones, Brenda M., e n/a. "Digging up data: a reanalysis of so called �horticultural� tools". University of Otago. Department of Anthropology, 1999. http://adt.otago.ac.nz./public/adt-NZDU20070523.153015.

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Elsdon Best�s 1925 work Maori Agriculture has been influential in New Zealand archaeology impacting on the terminology and assumed functions applied to so called �horticultural� implements retrieved in excavations, as well as those in museums and private collections. This thesis critically examines Best�s horticultural tool classification and the decisions he made with regards to tool function. Ethnographic accounts are investigated in an effort to understand how and why Best selected the terms and functions that he did. The literature review reveals anomalies in the conclusions that Best drew and the morphology of the tools that he described, highlighting the lack of order and confusion surrounding horticultural tool function, terminology and morphology, and prompting a much needed reassessment of horticultural implements. A study of artefacts from New Zealand museums was undertaken with the aim of generating two typologies for so called �horticultural� tools. The artefacts are classified to specific types using specified attributes, and following the classification process, are investigated for metric and non-metric variables that are indicative of the tool�s function. Graphical and basic statistical analyses revealed largely unimodal distributions for the metric attributes recorded for each tool type. Non-metric qualities also displayed a uniformity to their occurrence within the individual types. The data for each type is discussed with regards to tool function, combining the results of the attribute analyses with comparable tool morphologies from other Pacific cultures. The distribution of tool types in prehistoric New Zealand is also investigated in an effort to elucidate tool function. This investigation highlights the artefacts as earth-working implements, disestablishing the restricted horticultural context which for so long has been associated with such tools.

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23

Barton, R. N. E. "A study of selected British and European flint assemblages of Late Devensian and Early Flandrian Age". Thesis, University of Oxford, 1986. http://ora.ox.ac.uk/objects/uuid:870615a7-3f6c-4733-893c-c618dd120d2c.

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This dissertation is concerned with the analysis of selected blade assemblages from Late Devensian and Early Flandrian contexts in Southern Britain (c. 12,500 - 9,000 BP). The British sites studied are divided into three main groupings: Upper Palaeolithic, Long Blade, and Mesolithic, each of which contains material of a typologically and technologically distinct nature. Despite previous important studies in the British Upper Palaeolithic and Mesolithic, no major work until now has been undertaken on the third technology, that of the Long Blade sites, which seems to occupy a chronological position intermediate between the other two. The dissertation incorporates the first comprehensive description of material from Long Blade sites and contrasts it with the sets of artefacts from the other two groups. Comparative data from the Upper Palaeolithic and Mesolithic derive mainly from primary information recovered in two excavations directed by myself at Hengistbury Head between 1980-4. The chapters consider the archaeological material in chronological order beginning in Chapter 1 with the Late Upper Palaeolithic assemblage from Hengistbury Head. Chapters 2 and 3 are devoted to the Long Blade assemblages from Britain and Northwestern Europe, whilst in the fourth chapter the Early Mesolithic material from Hengistbury and related sites in Southern Britain is considered. The fifth and last chapter is given over to discussion and final conclusions. Appended to the last chapter is a gazetteer of 159 specified Long Blade findspots in Southern Britain, the first time this material has ever been gathered together. Explanatory notes and a key are provided at the front of the Gazetteer. In studying the artefacts I have laid particular emphasis on technology as well as typology, and in studying technology I have been particularly influenced by my own work on the experimental manufacture and use of implements. Given that my two excavated sites were very little disturbed, I have also been able to make major use of conjoining artefacts, not only as an aid to understanding the differing techniques of artefact manufacture, but also in interpreting the archaeology of the sites. Some use was also made of experimental taphonomy. These aspects of my work are referred to in the text, notably in Chapters 1 and 4.

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24

Gast, Jason A. "Ceramic vessels as metaphor". Virtual Press, 2005. http://liblink.bsu.edu/uhtbin/catkey/1318612.

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This project has shown how a ceramic vessel can be used as a metaphor for human emotion and feeling. People are like ceramic vessels because they hold in emotion how vessels hold liquids or solids. Artists that are reviewed in the project are Peter Voulkos, David Leach and Bob Witt. The body of work is made up of a series of teapots that are built of a base, body, spout, lid and handle. Changing the position of any one of these parts can give the teapot a different feeling.
Department of Art

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25

Moore, Mark W. "Diagnostic flake analysis : a replication-based method for reconstructing reduction techniques, strategies, and technologies". Virtual Press, 1990. http://liblink.bsu.edu/uhtbin/catkey/724566.

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Diagnostic flake analysis is based on the concept that distinct flintknapping techniques produce distinctive flakes. Seen in this light, the information potential of flakes is enormous. Unfortunately, this information is virtually lost in analyses based upon size-grading a flake assemblage or separating flakes statistically based on a few "key" attributes. The intent of this study is to provide and apply a well-integrated analytical approach based upon the diagnostic flake concept.In order to integrate the static lithic artifacts to the dynamic behavior that produced them, a generalized flow chart model of the knapping event is developed. The flow chart model emphasizes the debitage produced during knapping, rather than finished lithic tools. The flow chart model is described in detail, and the terms"technology", "strategy", and "techniques" are defined and contrasted.A total of 30 reduction experiments were conducted in the course of this study, producing an estimated 27,000 flakes and flake fragments. Based on this sample and previous work conducted by Flenniken (n. d. ) and others, nine diagnostic flake types and three significant flake attributes are defined.An ideal methodology for a lithic analysis is developed. This ideal methodology includes: 1) assessing the types of raw materials present on a site; 2) reconstructing the technology based on negative-flake scars on finished tools; 3) flake refitting; 4) classifying flakes into the diagnostic flake categories nonstatistically and polythetically, with special emphasis placed on recognizing previously unidentified diagnostic flake types; 5) developing a flow chart model of reconstructed prehistoric technology; and 6) summarizing the flow chart i n verbal form.The methodology is applied to the Middle and Late Woodland components of the stratified All Seasons site located in central Indiana. Analysis of the Middle Woodland assemblage results in the recognition and definition of conical core flake blanks.The methodology is applied to a blind test manufactured by Donald Cochran to assess bias that may have been introduced into the flake type definitions by using debitage produced only by the author. Cochran's behavior is accurately reconstructed.Finally, the results of the study are discussed, and the study's strengths and weaknesses are determined. Diagnostic flake analysis is found to be a powerful approach that derives an optimal amount of high-quality information from a chipped stone assemblage.
Department of Anthropology

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26

Abelha, Ferreira Paulo. "Transfer of tool affordances in computer vision for robotics". Thesis, University of Aberdeen, 2018. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=235979.

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Robots working in constrained environments in the industry have achieved great success for a variety of tasks. Future service robots working in unconstrained domains (e.g. home or hospital) will have to cope with unforeseen circumstances, such as not having the usual tool to perform a known task. They will have to assess the affordances of candidate substitute tools and also how best to grasp and orient a tool (tool-pose) for a given task. Everyday tasks in the home often involve using a tool in non-canonical ways, e.g., the handle of a spoon oriented in the right way to retrieve something from a gap; or a bottle of wine used as a rolling pin to roll dough. It is possible to exploit these similarities between different tools and their tool-poses if the robot can learn by trying different tool-poses and also transfer what was learned to assess substitute candidate tools. Learning and dealing with substitute tools comes naturally to humans and is already present in toddlers and in some animals. Research in cognitive science provides insight into a possible mechanism playing an important role in human concept adaptability: projection. Here we provide an application of this cognitive science idea into the real-world domain of computer vision for service robotics. We show both that projection can be made to work in a real-world domain and that our approach can achieve better results than the closest one in the literature. The two main contributions of this dissertation are: 1. A ﬁrst approach to bringing the idea of projection from cognitive science into a real-world 3D computer vision domain. Instead of a one-pass assessment from sensor data to abstraction and then to score, we have a bottom-up exploration from sensor data to representation and a top-down selection of best alternatives. 2. A semi-automatic framework for assessing tool affordances and tool-pose starting from unsegmented point clouds and including segmentation, simulation, learning and flexible assessment. These contributions enable us to achieve 69% overall accuracy on five different everyday tasks compared to our closest competitor in the literature achieves only 32% on the same four tasks. These results can be obtained when (a) it is possible to create a simulation for the task (b) it is possible to pre-train the system on 5000 different tools. This dissertation demonstrates that it is possible to bring the projection idea into a real-world domain and that combining top-down pressure with bottom-up search and a flexible representation improves accuracy when assessing tool affordances for service robotics.

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Lucente, Adriano dos Reis. "Dinâmica da inovação tecnológica no Brasil: estudo do segmento de máquinas e implementos agrícolas". Universidade Federal de São Carlos, 2010. https://repositorio.ufscar.br/handle/ufscar/3361.

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This study aimed to characterize the dynamics of technological innovation in Brazilian MIA segment. To achieve this objective this work realized a survey with IBGE information, the institution responsible for carrying out PINTECs occurred between 1998 and 2005, which allowed a quantitative analysis about technological innovations on MIA companies. In addition, a national scenario with a qualitative analysis was elaborated, based on surveys conducted by IBGE and on a field research in five MIA´s manufacturers companies of São Paulo state. Results indicate that technological changes have changed the way MIA companies treat the needs of their customers by improving the processes of development and manufacture of products. Moreover, it was found that the variables size and export orientation significantly influence the innovative activities. The influence of size company on innovative activity is justified by the fact that the larger companies find it easier to finance innovative projects and the returns of innovation are more expressive when the company has increased sales volume and the fixed costs are more easily absorbed. The export orientation also generates positive impacts on the ability to innovate, because the international competitiveness encourages investments in innovative activities. Exports, while facilitating the expansion of markets, contributing effectively to the reduction of fixed costs generated in the process of innovation.
Este trabalho teve o objetivo de caracterizar a dinâmica da inovação tecnológica do segmento de MIA no Brasil. Para isso foi realizado um levantamento de informações junto ao IBGE, instituição responsável pela realização das PINTECs ocorridas entre 1998 e 2005, que permitiram uma análise quantitativa acerca das inovações tecnológicas para empresas de MIA. Para complementar as informações quantitativas disponibilizadas pelo IBGE foi realizada uma pesquisa de campo em cinco empresas fabricantes de MIA localizadas no estado de São Paulo. Os resultados indicaram que as mudanças tecnológicas modificaram a forma como as empresas de MIA passaram a tratar as necessidades de seus clientes, melhorando os processos de desenvolvimento e fabricação de seus produtos. Além disso, verificou-se que as variáveis porte e orientação exportadora influenciam de forma significativa as atividades inovativas. A influência do porte da empresa sobre a atividade inovativa é justificada pelo fato que as firmas maiores têm mais facilidade para financiar projetos inovativos e os retornos das inovações são mais expressivos quando a empresa tem maior volume de vendas, uma vez que os custos fixos são mais facilmente absorvidos. A orientação exportadora também gera impactos positivos sobre a possibilidade de inovar, pois a competitividade internacional estimula os investimentos em atividades inovativas. As exportações, quando facilitam a ampliação dos mercados, contribuem efetivamente para a redução dos custos fixos gerados no processo de inovação.

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Ghazavi, Kh Mohammad Ali. "Energy inputs and resulting soil physical conditions of primary tillage implements". Thesis, University of Newcastle Upon Tyne, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.320128.

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29

Kirisci, Vahit. "A field method for predicting the draught forces of tillage implements". Thesis, Cranfield University, 1994. http://dspace.lib.cranfield.ac.uk/handle/1826/12143.

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A literature review was conducted on several models which have been developed, based on Terzaghi's passive earth pressure theory, to describe the forces acting upon tillage implements during tillage operations. These models require a knowledge of cohesion (c) and angle of internal shearing resistance (cp) data which are not easy to obtain especially in remote areas. The main objective of the study was to establish a prediction model for the draught force required for a range of primary tillage implements under different field and soil conditions. The data obtained from the model were used to investigate whether the model was adequate for the mechanisation planning of the GAP region (South Eastern Anatolia Integrated Development Project) in Tiirkiye where by the year 2012, approximately 1.7 million ha ofland will be opened to irrigation. An effective three-point linkage dynamometer system was developed to measure the draught of implements under different soil conditions. The system consists of bi-axial Linkage Extended Octagonal Ring Transducers (LEORTs) for the lower links, a modified top link and a rotary position transducer sensing the angle of the crossshaft, together with a 21x datalogger and a portable computer. All transducers outputs were repeatable and linear with a co'efficient of determination of ~ 0.999. The output hysteresis effect was small for all transducers; the largest deviation from the mean was 1.006 % [f.s.] which occurred in the top link. Cross-sensitivity errors for the LEORTs were not significant at a maximum of 0.001 J.lV V-IN-I. A spreadsheet model was developed in order to download the data from the instrumentation system to the computer. The model is user friendly and can be used to calculate and plot the forces on the linkage system. Field experiments were conducted to determine draught force requirements of tillage implements such as a disc plough, mouldboard plough, chisel and subsoiler both under sandy loam soil conditions in UK and clay soil conditions in Tiirkiye. The standard tine which has a 450 rake angle was used as a reference tine. The field tests were Gonducted to examine the validation of a model for different soil conditions in UK such as dry, wet, light and heavy soil conditions.

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Wilson, Amanda J., e n/a. "Stone tool production at Cat's Eye Point, Kakanui, North Otago, New Zealand". University of Otago. Department of Anthropology, 1999. http://adt.otago.ac.nz./public/adt-NZDU20070523.143909.

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This thesis examines a lithic assemblage from Cat�s Eye Point (J42/4), Kakanui, North Otago, New Zealand. This archaic site was excavated during 1996 and 1997 and the lithic assemblage was collected from 41m� excavated during these two seasons. Previous studies of lithic material from New Zealand and the Pacific are reviewed to indicate the range of information that can be gained from lithic analysis. Themes of research in the North Otago region are also examined to place Cat�s Eye Point into its regional context. This thesis had three main areas of investigation. The first involved a descriptive and technological analysis of the debitage using mass flake analysis (MFA) and individual flake analysis (IFA). Formal artefacts, such as hammerstones, blanks, and performs, were also examined. Secondly, spatial analysis was used to determine if the lithic assemblage could be used to infer intra-site activity areas. This was conducted by analysing macro- (flakes larger than 3mm) and microdebitage (flakes less than 3mm) by examining the range of material types. The third area of investigation examined debitage recovered from 6.4mm (1/4 inch) and 3.2mm (1/8 inch) sieves to determine if any significant technological information was gained by debitage from the 3.2mm sieve. The conclusions of this study indicate that there were two methods of basalt cobble reduction at Cat�s Eye Point for adze production. Adze production at Cat�s Eye Point was opportunistic and the non-local material curated. The results of the debitage analysis indicate that the entire sequence of adze manufacture did not occur in the excavated area of Cat�s Eye Point and the initial cobble reduction probably occurred on the adjacent beach where the cobbles are found today. Consequently, coastal rock outcrops, even without evidence of associated debitage, must be viewed as potential sources of rock for stone tool manufacture unless determined otherwise. The spatial analysis detected two activity areas and a disposal area at Cat�s Eye Point. The analysis of the 6.4mm and 3.2mm debitage found that no significant technological information was gained by examining the smaller flakes.

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31

Loffler, German. "Microscopic analysis utilized in the identification of cutting, scraping and whittling activities on flake tools from the Qwu?gwes (45TN240), Hartstene, and Sunken Village (35MU4) sites in the central northwest coast of North America". Online access for everyone, 2007. http://www.dissertations.wsu.edu/Thesis/Fall2007/g_loffler_112707.pdf.

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32

McNichol, Anthony J. "Bone pins and territoriality at the Koster, Black Earth and Modoc Rockshelter sites : a social contradiction model for the trend toward sedentism in the Middle Archaic Midwest". Thesis, McGill University, 2005. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=98559.

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Carved and engraved bone pins from the Koster, Black Earth and Modoc Rockshelter sites have been used by Professor Richard Jefferies to investigate the development of regional-scale interaction between hunter-gatherer groups of the Midwest Middle Archaic. Using that same data, this pilot study suggests that these artifacts may also be representative material embodiments of inherent social contradictions within and between hunter-gatherer societies at an even earlier date. These contradictions and the conflicts that arose from them may rival in importance ecological and demographic paradigms as catalysts for sedentism and territoriality in the Middle Archaic Midwest.

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Yoo, Yongwook 1969. "Long-term changes in the organization of lithic technology : a case study from the Imjin-Hantan River Area, Korea". Thesis, McGill University, 2007. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=102852.

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This study is intended to furnish an explicability of hunter-gather's organizational model on the lithic technology. The fieldwork area is the Imjin-Hantan River Area (the IHRA) located at the midwestern part of the Korean Peninsula. The archaeological sites included in the fieldwork are Jangsanri (ca 0.2 Mya BP), Chongokni (ca 60 Kya BP), Juwolri, and Kawolri (younger than ca 50 Kya BP). In addition, a previously excavated Upper Palaeolithic assemblage of Janghungri (ca 23 Kya BP) is included in the quantitative analysis of lithic assemblages.
For the background of the research area, chapter II is devoted to demonstrating the general environment of East Asia and current Quaternary research of Korea. Chapter III furnishes the basic knowledge on the geomorphological environment of the IHRA and the research history in this area for the last three decades was elaborated.
Chapter IV is a description on the excavation fieldworks, introduction of the discovered lithic artifacts, and new age determination based on the K-Ar, IRSL, OSL, and AMS dating methods. Chapter V is the general characteristics on the IHRA lithic assemblage. Some descriptive details on the individual artifacts are presented and technological implications of lithic types are delineated. In addition, a general reduction sequence of the IHRA assemblage is proposed.
Chapter VI is a quantitative analysis based on the exploratory data analysis (EDA); some geometric variables of artifacts were operationally defined for the purpose of acquiring more implicative analytical units. As a result of the analysis, it is revealed that the distinct interassemblage variability of raw material composition and of the morphological features of small tools and blanks constrained by differential reduction intensity can be explained in the context of the long-term-based strategic changes executed by the IHRA hominins.
Chapter VII, based on the results from the fieldwork and lithic analysis, attempted to reconstruct the geological history of the IHRA in terms of hominid's land use patterns and relevant survival strategies. As a final remark, some unsolved issues were diagnosed and future research was expected for the continual research of the IHRA.

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Milliken, Sarah. "Aspects of lithic assemblage variability in the late Palaeolithic of south-east Italy". Thesis, University of Oxford, 1991. http://ora.ox.ac.uk/objects/uuid:dcc65351-7853-4942-bd7a-9f0c036f7fe6.

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This thesis concerns late Palaeolithic settlement in the region of Puglia, south-east Italy, at the close of the Pleistocene. Puglia comprises three sub-regions which contain sites of this period: the Salento peninsula, the Murge, and the Gargano promontory. The late Palaeolithic occupation must be considered in relation to the former existence of an extensive coastal plain, and to the sea-level rise which submerged it. The late Palaeolithic assemblages of the region have been studied previously by Italian archaeologists from a rigid typological stance, with various schemes put forward suggesting evolution of the assemblages through different stages of an Epigravettian tradition. In this thesis, attribute analysis is used to re-examine the principal assemblages, using published data where adequate and supplemented by samples studied by the author in Italy. The results are analyzed to seek the social and economic factors which shaped the various industries, as well as diachronic change wherever it can be demonstrated. Factors such as difficulty in obtaining raw material were clearly crucial to assemblage composition. The existing typological schemes are shown to lack real bases and to mask rather than reveal sociocultural information. Chapter 1 states the aims of the thesis and critically discusses previous theoretical approaches to the late Palaeolithic of the region. Chapters 2 and 3 describe relevant aspects of the regional palaeoenvironment. The author's own methodological approach is explained in Chapter 4, and then used for a detailed study of the assemblages from Grotta delle Cipolliane in Chapter 5. This is followed in Chapter 6 by a broader study of the late Palaeolithic assemblages in Puglia, with discussions of their possible diachronic and synchronic relationships. Chapter 7 develops this latter theme into an attempt to understand the social and economic features of the late Palaeolithic settlement of Puglia, and suggestions are made concerning future work that might improve the quality of the archaeological evidence. Chapter 8 summarizes the main conclusions of the thesis.

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Charles, Ruth. "Food for thought : late Magdalenian chronology and faunal exploitation in the north-western Ardennes". Thesis, University of Oxford, 1994. http://ora.ox.ac.uk/objects/uuid:57cf430c-1d8f-4821-8eab-6fb760e6819d.

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This dissertation examines certain aspects of the Belgian archaeological record during the Lateglacial. It is geographically centred on the north-western Ardennes and has two main themes. The first is a re-evaluation of the known chronology and archaeology for this region during the Lateglacial. The main part of this is presented in chapter 2, and includes a discussion of recent radiocarbon dates from the Oxford AMS system, including some obtained in the course of this research. The second theme is an examination of a series of supposedly Lateglacial faunal assemblages from 5 cave sites in the north-western Ardennes, namely the Trou de Chaleux, the Trou des Nutons at Furfooz, the Trou du Frontal at Furfooz, the Grotte du Coleoptere and the Grotte de Sy Verlaine. All of these sites have yielded late Magdalenian archaeological finds, and the prime objective of the study of the faunal assemblages is to identify direct evidence for the human modification of animal bone. The study reveals some good evidence for the latter, but also certain bars to the interpretation of these assemblages, which are discussed in detail within the relevant chapters. This dissertation concludes with an overview of the results and interpretations presented in the dissertation. The final pages of this dissertation include a tentative exploration of the notion of ethnicity, and how this concept may be relevant to the interpretation of butchery evidence.

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Blake, Elizabeth Catherine. "Stone 'tools' as portable sound-producing objects in Upper Palaeolithic contexts : the application of an experimental study". Thesis, University of Cambridge, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.609715.

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37

Ferraro, Joseph Vincent. "Broken bones and shattered stones on the foraging ecology of Oldowan hominins /". Diss., Restricted to subscribing institutions, 2007. http://proquest.umi.com/pqdweb?did=1568044151&sid=1&Fmt=2&clientId=1564&RQT=309&VName=PQD.

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38

Adams, Jenny Lou. "The development of prehistoric grinding technology in the Point of Pines area, east-central Arizona". Diss., The University of Arizona, 1994. http://hdl.handle.net/10150/186928.

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The development of grinding technology is a topic that has not received much attention from archaeologists in the American Southwest. Presented here is a technological approach to ground stone analysis capitalizing on the methods of ethnoarchaeology, experimentation, and use-wear analysis. These methods are applied to an existing collection of ground stone artifacts amassed by the University of Arizona field school's excavation of the Point of Pines sites in east-central Arizona. The heart of the technological approach is the recognition that technological behavior is social behavior and as such is culturally distinct. Both puebloan and nonpuebloan ethnographies provide models for understanding how ground stone tools were used by different cultural groups in daily activities and for making inferences about gender-specific behaviors. Culturally distinct behaviors are sustained through technological traditions, defined as the transmitted knowledge and behaviors with which people learn how to do things. A technological approach is applied to the ground stone assemblages from nine Point of Pines sites that date within eight phases, from A.D. 400 to A.D. 1425-1450. The assemblages are compared and assessed in terms of variation that might reflect developments in grinding technology. Developments may have derived from local innovations or from introduced technological traditions. Assemblage variation is evaluated in light of major events in Point of Pines prehistory, particularly the change from pit house villages to pueblo villages and the immigration of Tusayan Anasazi. Point of Pines grinding technology continued relatively unchanged until late in the occupation. Around the mid-1200s, an Anasazi group immigrated to the Point of Pines area and took up residence in the largest Point of Pines pueblo. Foreign technology was introduced but not immediately adopted by the resident Mogollon. Food grinding equipment of two different designs coexisted for about 100 years, until around A.D. 1400 when there is evidence of a change in the social organization of food grinding. It is this change that signals the blending of Mogollon and Anasazi into Western Pueblo.

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Martinez, Kelley Prince. "Examining Human Behavior and Tool Use through Experimental Replications and a Technological Analysis of Ground Stone in the Lower Columbia". PDXScholar, 2019. https://pdxscholar.library.pdx.edu/open_access_etds/5074.

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While ground stone tools represent diverse activities, the technology is analyzed at a coarse level in the Pacific Northwest. Conducting more detailed analyses of ground stone assemblages can inform on regional Indigenous raw material knowledge, resource use, and tool manufacturing and maintenance practices. In this thesis I addressed questions regarding ground stone technology, including manufacturing time investments, tool recycling, and how ground stone tools were used through the application of experimental tool replication, use studies, and in depth analyses. I replicated tools that are common in the region, including a banded and notched net weight, a maul, two bowls, and a pestle. The replicated tools were all produced with raw materials collected from nearby sources and all ground stone tools were manufactured with cobble choppers. I conducted use wear studies in two phases to examine the impacts of processing both hard and soft materials using the replicated bowl and pestle. The tools underwent an in-depth analysis before and after manufacture and the use wear study to assess manufacturing and use wear attributes. The experimental replications and use study resulted in associating specific attributes with known activities and actions. These insights were then applied to the analysis of ground stone artifacts from the 35CO2 Rylander assemblage, a private artifact collection from a contact-period archaeological site located in the Lower Columbia. I was able to identify manufacturing and use wear attributes to further explore how the ground stone tools were manufactured, used, and maintained. Additionally, I demonstrated a strong relationship between raw material selection, time investment, and tool recycling in the region through the experimental studies and comparative analysis with the Rylander assemblage. Furthermore, this study highlights the need for more robust ground stone analysis standards. Analyses that include in-depth examination at the attribute level will help expand our understanding of ground stone tool technology. Employing standardized vocabulary, terminology, and referencing attributes in photomicrographs builds more comparable datasets, giving researchers valuable insights into skill level, specialization, and time investment associated with ground stone technology.

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40

Markham, Michael. "Provenance studies of British prehistoric greenstone implements using non-destructive analytical methods". Thesis, n.p, 2000. http://ethos.bl.uk/.

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41

Schorah, David J. "The effect of moment of inertia on the speed of swung implements". Thesis, Sheffield Hallam University, 2015. http://shura.shu.ac.uk/20803/.

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The maximum swing speed of an implement is an important performance parameter in many sports. It is understood that moment of inertia (MOI) has an effect upon the swing speed of an implement and numerous studies have found a similar rate of swing speed decay (n). These studies considered different movements which suggested that skill was less important than physique to the relationship between swing speed and MOI. The aim of this project was to quantify this relationship and to determine whether the physical characteristics of a participant can be used to predict their swing speed performance. A series of eight visually identical rods with varied MOI were swung in a heavily restricted, maximal motion and trials were recorded with a motion capture system. The results found that swing speed decreased as MOI increased. It was also found that if n was assumed to be constant, the maximum work done by a participant was strongly and significantly related to their swing speed. The relationship between work done and swing speed was used to create a model to predict swing speed for an implement with a specific MOI. This model was validated for a new set of participants performing the same restricted motion and all measured data fell within the confidence intervals of the predictions. The ecological validity of the model was tested in an analysis of the swing speed of tennis groundstrokes. An impact model was used to analyse the effect of changing MOI on ball speed. It was discovered that there is an optimum MOI that produces a maximum ball speed and that this optimum MOI is dependent upon n. This makes the customisation of equipment a realistic possibility. A simple method for measuring n in a non-laboratory environment is proposed that will enable the customisation process to take place.

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Moore, Edward Cyrus. "Variability and Continuity between Paleoindian Assemblages in the Northeast: A Technological Approach". Fogler Library, University of Maine, 2002. http://www.library.umaine.edu/theses/pdf/MooreEC2002.pdf.

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43

Ferris, Jennifer Marie. "Lithic technological organization of site J69E, Espiritu Santo Island, Baja California Sur". Online access for everyone, 2008. http://www.dissertations.wsu.edu/Thesis/Spring2008/j_ferris_042208.pdf.

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Kim, Hak Kyun. "On the edge". CONNECT TO THIS TITLE ONLINE, 2008. http://etd.lib.umt.edu/theses/available/etd-05162008-155633/.

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Lerner, Harry Joseph. "Lithic raw material variability and the reduction of short-term use implements : an example from Northwestern New Mexico". Thesis, McGill University, 2006. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=102675.

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Chipped stone tools are a truly dynamic medium of material culture. From initial reduction to contemporary excavation, lithic artifacts undergo continuous change. The role of the properties of raw materials in determining rates of use-wear accrual is poorly understood and has rarely been assessed quantitatively (e.g. Goodman, 1944; Greiser and Sheets, 1979; McDevitt, 1994). This dissertation offers such quantification regarding four materials exploited for the production of short-term use implements at the Late Archaic FA2-13 site located just outside the city of Farmington, New Mexico.
Both experimental and archaeological use-wear evidence was assessed in separate but related ways. Digital image analysis of use-wear invasiveness using ClemexVision PE and GIS analysis of use-wear homogeneity using Idrisi Kilimanjaro yielded distinct but highly complementary results. Direct testing of material properties of non-archaeological samples using a Hysitron Triboindenter served to further clarify these findings in terms of the complex relationship between raw material surface hardness and roughness.
The results of the present study show that there are significant differences between rates of wear accrual among the four materials. Analysis of tools from FA2-13 indicates that while scraping activities likely did predominate (Schutt, 1997a), it may also be feasible to generate more detailed assessments regarding the kinds of scraping activities that were undertaken and the respective intensities with which they were performed. This increased insight can then be extrapolated for application to long-term use technologies and their more complex life histories.

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Cole, Stephen C. "Lithic raw material exploitation between 30,000 BP and 40,000 BP in the Perigord, France /". Thesis, Connect to this title online; UW restricted, 2002. http://hdl.handle.net/1773/6401.

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Thesis (Ph. D.)--University of Washington, 2002.
Vita. Accompanying CD-ROM contains data recorded during examinations of six lithic assemblages and Pendulum Indenter tests, plus macros for use with data. Includes bibliographical references (leaves 553-598).

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Gustafsson, Oskar, e Rickard Hellenberg. "Evaluating performance of a fault-tolerant system that implements replication and load balancing". Thesis, Linköpings universitet, Institutionen för datavetenskap, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-138124.

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Companies and organizations increasingly depend on their computer systems to help them in their work. This means that the availability of these computer systems becomes even more important as organizations are increasingly dependent on it to function. Therefore, fault tolerance needs to be considered when designing a computer system. However, when implementing fault tolerance to increase the availability it may affect the performance of the system. This thesis describes an implementation of a system that provides fault tolerance against fail-stop faults and analyzes the performance. The system consist of a primary server and a backup server and each has a GO web server and a MySQL database installed. MySQL has a built-in functionality for replication that is used to replicate the data from the primary to the replica. Two different approaches for replication are used and compared in this thesis. The system also has a load balancing server with a program called HAProxy installed. The program is used to switch between servers in case of a failure and enables load balancing between the servers, although this setup only allows for read requests to be sent to the backup server. The measurements of the implemented system shows that enabling load balancing for read requests has little effect on lower the response time when the system is under low load. For 25 users the response time was just 5 ms faster when enabling load balancing. For 50 users however, the response time was 33 ms faster when enabling load balancing. The system was evaluated using measurements of the response time and the percentage of stale data under different network loads and different requests from the system. Two different methods of replication in MySQL: asynchronous and semisynchronous were tested to see how they affect the response time and the consistency of the system. The measurements show asynchronous replication has a lower response time, but semisynchronous replication has less stale data. This means that choosing between asynchronous or semisynchronous replication is a trade-off between choosing lower response time or choosing less stale data and less risk of losing data.

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Boutwood, Yvonne. "Aspects of stone tool procurement and usage : a study of group XVIII implements". Thesis, University of Sheffield, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.320070.

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Quattrochi, David P. "How one school implements and experiences Ohio's value-added model a case study /". Morgantown, W. Va. : [West Virginia University Libraries], 2009. http://hdl.handle.net/10450/10686.

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Thesis (Ed. D.)--West Virginia University, 2009.
Title from document title page. Document formatted into pages; contains ix, 138 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 127-133).

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Hamilton, Stephen Coursault. "Technological Organization and Sedentism: Expedient Core Reduction, Stockpiling, and Tool Curation at the Meier Site (35CO5)". PDXScholar, 1994. https://pdxscholar.library.pdx.edu/open_access_etds/4839.

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The Meier site fine-grained lithic assemblage was used to test the hypothesis that a sedentary group will rely heavily on expedient lithic technologies because they stockpile raw material at the residence. At Meier, expedient core reduction provided blanks for a significant number of curated and expedient tools. I propose that sedentism (stockpiling) minimizes energy investments in raw material procurement and blank production while maintaining the ability to efficiently make both curated and expedient tools. Investment in curation is limited to a few tool classes with specialized functions, not transportable design variables.

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Tesi sul tema "Implements"

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