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Seleção de informações de guia de rota para a concepção de sistemas de navegação /Reis, Yuri Correa dos. January 2010 (has links)
Resumo: A presença e utilização de sistemas de navegação em automóveis no mundo, atualmente, é cada vez maior. Esses sistemas são utilizados por pessoas que necessitam de informações navegacionais para alcançarem seus destinos. Entretanto, em muitos casos, são fornecidas apenas a localização do veículo no visor dos sistemas e setas de direção. Diferentes estudos realizados nos EUA, Inglaterra, Japão e Suécia, buscam analisar quais informações os motoristas selecionam do ambiente urbano a partir de sua memória, para assim indicar e conceber sistemas de navegação com informações que auxiliem os motoristas em sua navegação. Esses estudos apontam que o mapa cognitivo dos motoristas é a melhor fonte de informações de guia de rota, pois possui as informações realmente úteis para auxiliar a navegação em automóveis, o que indica ser necessário conhecer as representações internas do ambiente dos motoristas, para assim conceber sistemas que propiciem maior eficiência navegacional. Desse modo, esta dissertação de mestrado objetivou investigar quais aspectos do ambiente os motoristas utilizam durante a navegação. Para tanto, aplico-se o método de esboço cartográfico para seleção de informação de guia de rota em automóvel. No desenvolvimento do método desse estudo participaram 50 (cinquenta) motoristas ... (Resumo completo, clicar acesso eletrônico abaixo) / Abstract: The presence and use of navigation systems in cars in the world is currently increasing. These systems are used by people in need of navigational information to reach their destinations. However, in many cases, are given only the vehicle's location on the systems display and directional arrows. Different studies indicate that the cognitive map of the drivers is the best source of information for route guidance, it has the really useful information to aid navigation in cars, which indicates the need to understand the internal representations of the environment of motorists, so as to conceive systems that provide navigational efficiency. Thus, this dissertation aims to investigate which environmental aspects drivers use when navigate. For that, were applied the method of sketch map for selection of route guidance information in car. In developing the method of this study involved fifty (50) drivers (undergraduate students, postgraduate students and taxi drivers) familiar with ... (Complete abstract click electronic access below) / Orientador: Mônica Modesta Santos Decanini / Coorientador: Vilma Mayumi Tachibana / Coorientador: Edmur Azevedo Pugliesi / Banca: Fátima Aparecida Dias Gomes Marin / Banca: Claudia Robbi Sluter / Mestre
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Seleção de informações de guia de rota para a concepção de sistemas de navegaçãoReis, Yuri Correa dos [UNESP] 26 August 2010 (has links) (PDF)
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reis_yc_me_prud.pdf: 4404643 bytes, checksum: d955f1ecd9f11d5c953843527380b5e3 (MD5) / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) / A presença e utilização de sistemas de navegação em automóveis no mundo, atualmente, é cada vez maior. Esses sistemas são utilizados por pessoas que necessitam de informações navegacionais para alcançarem seus destinos. Entretanto, em muitos casos, são fornecidas apenas a localização do veículo no visor dos sistemas e setas de direção. Diferentes estudos realizados nos EUA, Inglaterra, Japão e Suécia, buscam analisar quais informações os motoristas selecionam do ambiente urbano a partir de sua memória, para assim indicar e conceber sistemas de navegação com informações que auxiliem os motoristas em sua navegação. Esses estudos apontam que o mapa cognitivo dos motoristas é a melhor fonte de informações de guia de rota, pois possui as informações realmente úteis para auxiliar a navegação em automóveis, o que indica ser necessário conhecer as representações internas do ambiente dos motoristas, para assim conceber sistemas que propiciem maior eficiência navegacional. Desse modo, esta dissertação de mestrado objetivou investigar quais aspectos do ambiente os motoristas utilizam durante a navegação. Para tanto, aplico-se o método de esboço cartográfico para seleção de informação de guia de rota em automóvel. No desenvolvimento do método desse estudo participaram 50 (cinquenta) motoristas... / The presence and use of navigation systems in cars in the world is currently increasing. These systems are used by people in need of navigational information to reach their destinations. However, in many cases, are given only the vehicle's location on the systems display and directional arrows. Different studies indicate that the cognitive map of the drivers is the best source of information for route guidance, it has the really useful information to aid navigation in cars, which indicates the need to understand the internal representations of the environment of motorists, so as to conceive systems that provide navigational efficiency. Thus, this dissertation aims to investigate which environmental aspects drivers use when navigate. For that, were applied the method of sketch map for selection of route guidance information in car. In developing the method of this study involved fifty (50) drivers (undergraduate students, postgraduate students and taxi drivers) familiar with ... (Complete abstract click electronic access below)
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Ptáci řádu Passeriformes otevřené krajiny v CHKO Třeboňsko / Birds of Passeriformes order on CHKO Třeboňsko champaignFUKA, David January 2008 (has links)
During the breeding season in 2007, the mapping of the nesting ranges in birds of the order Passeriformes was carried out on the chosen localities in Třeboň wet meadows within the Třeboňsko landscape; Aim of study was to order qualitatives and quantitatives status of the Passeriformes within localities and their comparasion. Localities were situated in the immediate vicinity of Třeboň. The total mapped area was 25 hectares. The Vegetation was dominated by tall sedges (locality New station). The principal biotops consisted of tall sedges biotop M1.7 and K1 (locality New station and locality Old station) and V1 biotop. Within Old station locality and Opatovický locality it was especially: T1.5 and T1.4 and X5. Nesting birds were counted by the mapping method (Janda a Řepa, 1989). The GPS system was used for the recording of single males. Twenty three passerine bird species were found within localities. In total, nine bird species were founded in all the localities. The most abundant species were: (Acrocephalus schoenobaenus) the Sedge Warbler, (Luscinia svecica cyanecula) the Bluethroat, (Locustella naevia) the Grasshopper Warbler (Old station locality and New station locality), Opatovický locality was dominated by Acrocephalus schoenobaenus the Sedge Warbler. There was signigicant differences of total density of bird assemblage betwen Opatovický locality and New station locality and Old station locality and Opatovický locality. High breeding density was found especially in the Whinchat and the Bluethroat on New station locality. High conformity of bird assemblage was among New station locality and Old station locality.
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Large Deformation Analysis Of Flexible Multibody SystemsTuzun, Aydin 01 September 2012 (has links) (PDF)
Large displacement and large strain problems of mechanical systems can be solved mainly by four methods. These are Floating Frame of Reference, Incremental Finite Element, Large Rotation Vector and Absolute Nodal Coordinate Formulations (ANCF). Due to exact rigid body representation, simple mass matrix structure and non-incremental formulation, ANCF is more convenient in analyzing flexible multibody systems. However, it is limited to problems with regular boundaries, currently.
The aim of the thesis is to improve the current ANCF in order to handle various problems with irregular boundaries. For this purpose, firstly meshfree ANCF has been developed to analyze flexible multibody systems. Verification of the developed meshfree formulation has been performed for beam type structures and accurate results have been obtained. Then, &ldquo / ANCF with Virtual Element Mapping Method&rdquo / has been proposed to overcome the boundary problems of the current formulations. The proposed method has been implemented to plane stress, plane strain, plate/shell and 3D solid finite elements. Verification of the proposed method has been performed by using the patch test problems available in the literature. Besides, it has been verified by various flexible multibody problems with large deformations. Additionally, shape function polynomials for thin plate assumption have been derived.
It is observed that developed formulations and methods can be useful not only for flexible multibody systems but also for structural mechanics problems subjected to large deformations and/or rotations. The proposed methods and formulations are more efficient than the current formulations in the literature due to extended shape limits of finite elements.
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A Multi-Scale Approach in Mapping the Sedimentological and Hydrostratigraphical Features of Complex AquifersSchumacher, Matthew 05 November 2009 (has links)
Accessibility to consistent subsurface hydrostratigraphic information is crucial for the development of robust groundwater flow and contaminant transport models. However, full three-dimensional understanding of the subsurface geology is often the missing link. Construction of watershed-scale hydrostratigraphic models continues to be limited by the quality and density of borehole data which often lack detailed geologic information. This can become a serious problem where rapid sediment facies changes and intricate sediment architecture occur. This research is motivated by the idea that if we can understand more about the distribution of sediments and structures of complex deposits, we learn more about depositional processes and how they affect the internal geometry of a deposit and the distribution of hydraulic properties. One approach is to study surficial excavations (e.g. sand and gravel pits) that often punctuate shallow aquifers.
The purpose of this study is to develop and test a method of integrating high-resolution georeferenced stratigraphic and sedimentologic information from sand and gravel pits as a means to better document sedimentologic data and improve understanding of the depositional environments. The study area is located within the Waterloo Moraine, in southwestern Ontario, and is an unconsolidated shallow aquifer system with a complex internal architecture and sediment heterogeneity. The method involves the integration of high-resolution field data with borehole and geophysical information in a computer-based 3D environment. A total of fourteen virtual sedimentary sections were constructed by georegistering digital photographs within a framework of georeferenced positions collected using a reflectorless total station and GPS. Fourteen sediment facies have been described in the field. These include crudely stratified gravel beds, planar and cross-laminated sandy strata (ripple and dune scales), along with laminated and massive silty and clayey beds. Calculated hydraulic conductivities span over seven orders of magnitude. The analysis of a single excavation has shown contrasting sediment assemblages from one end of the pit to the other, highlighting the complexity of the Waterloo Moraine. The heterogeneous and deformed layers of gravel, sand, and mud may be the product of an ice-contact to ice-proximal environment, whereas the extensive sandy assemblages may reflect an intermediate subaqueous fan region. The results also suggest that the borehole database overestimates the amount of fine-grained material in the study area. Finally, this research demonstrates that it is possible to build in a timely manner a 3D virtual sedimentologic database. New emerging technologies will lead to increased resolution and accuracy, and will help streamline the process even further. The possibility of expanding the 3D geodatabase to other excavations across the region in a timely manner is likely to lead to improved hydrostratigraphic models and, by extension, to more efficient strategies in water resources planning, management and protection.
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A Multi-Scale Approach in Mapping the Sedimentological and Hydrostratigraphical Features of Complex AquifersSchumacher, Matthew 05 November 2009 (has links)
Accessibility to consistent subsurface hydrostratigraphic information is crucial for the development of robust groundwater flow and contaminant transport models. However, full three-dimensional understanding of the subsurface geology is often the missing link. Construction of watershed-scale hydrostratigraphic models continues to be limited by the quality and density of borehole data which often lack detailed geologic information. This can become a serious problem where rapid sediment facies changes and intricate sediment architecture occur. This research is motivated by the idea that if we can understand more about the distribution of sediments and structures of complex deposits, we learn more about depositional processes and how they affect the internal geometry of a deposit and the distribution of hydraulic properties. One approach is to study surficial excavations (e.g. sand and gravel pits) that often punctuate shallow aquifers.
The purpose of this study is to develop and test a method of integrating high-resolution georeferenced stratigraphic and sedimentologic information from sand and gravel pits as a means to better document sedimentologic data and improve understanding of the depositional environments. The study area is located within the Waterloo Moraine, in southwestern Ontario, and is an unconsolidated shallow aquifer system with a complex internal architecture and sediment heterogeneity. The method involves the integration of high-resolution field data with borehole and geophysical information in a computer-based 3D environment. A total of fourteen virtual sedimentary sections were constructed by georegistering digital photographs within a framework of georeferenced positions collected using a reflectorless total station and GPS. Fourteen sediment facies have been described in the field. These include crudely stratified gravel beds, planar and cross-laminated sandy strata (ripple and dune scales), along with laminated and massive silty and clayey beds. Calculated hydraulic conductivities span over seven orders of magnitude. The analysis of a single excavation has shown contrasting sediment assemblages from one end of the pit to the other, highlighting the complexity of the Waterloo Moraine. The heterogeneous and deformed layers of gravel, sand, and mud may be the product of an ice-contact to ice-proximal environment, whereas the extensive sandy assemblages may reflect an intermediate subaqueous fan region. The results also suggest that the borehole database overestimates the amount of fine-grained material in the study area. Finally, this research demonstrates that it is possible to build in a timely manner a 3D virtual sedimentologic database. New emerging technologies will lead to increased resolution and accuracy, and will help streamline the process even further. The possibility of expanding the 3D geodatabase to other excavations across the region in a timely manner is likely to lead to improved hydrostratigraphic models and, by extension, to more efficient strategies in water resources planning, management and protection.
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An Approach For Landslide Risk Assesment By Using Geographic Information Systems (gis) And Remote Sensing (rs)Erener, Arzu 01 December 2009 (has links) (PDF)
This study aims to develop a Geographic Information Systems (GIS) and Remote
Sensing (RS) Based systematic quantitative landslide risk assessment methodology
for regional and local scales. Each component of risk, i.e., hazard assessment,
vulnerability, and consequence analysis, is quantitatively assessed for both scales.
The developed landslide risk assessment methodology is tested at Kumluca
watershed, which covers an area of 330 km2, in Bartin province of the Western Black
Sea Region, Turkey.
GIS and RS techniques are used to create landslide factor maps, to obtain
susceptibility maps, hazard maps, elements at risk and risk maps, and additionally to
compare the obtained maps.
In this study, the effect of mapping unit and mapping method upon susceptibility
mapping method, and as a result the effect upon risk map, is evaluated. Susceptibility
maps are obtained by using two different mapping units, namely slope unit-based and grid-based mapping units. When analyzing the effect of susceptibility mapping
method, this study attempts to extend Logistic Regression (LR) and Artificial Neural
Network (ANN) by implementing Geographically-Weighted Logistic Regression
(GWR) and spatial regression (SR) techniques for landslide susceptibility
assessment.
In addition to spatial probability of occurrence of damaging events, landslide hazard
calculation requires the determination of the temporal probability. Precipitation
triggers the majority of landslides in the study region. The critical rainfall thresholds
were estimated by using daily and antecedent rainfalls and landslide occurrence dates
based on three different approaches: Time Series, Gumble Distribution and Intensity
Duration Curves.
Different procedures are adopted to obtain the element at risk values and
vulnerability values for local and regional scale analyses. For regional scale analysis,
the elements at risk were obtained from existing digital cadastral databases and
vulnerabilities are obtained by adopting some generalization approaches. On the
other hand, on local scale the elements at risk are obtained by high resolution remote
sensing images by the developed algorithms in an automatic way.
It is found that risk maps are more similar for slope unit-based mapping unit than
grid&ndash / based mapping unit.
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A Collaboration in Product Service System for Telecom Networks : An "Orange and Ericsson case" studyDesai, Avni, Widgren, Maria January 2015 (has links)
The purpose of the research is to study the “Orange and Ericsson case” while developing the method Actors and System Map. The interaction between actors within Ericsson’s Device Connection Platform is investigated in order to identify improvement opportunities in the interaction between the provider and the customer. To answer the purpose the following research questions was formulated: RQ1) What type of actors may be involved in a telecom related IPSO? RQ2) How can the connections between actors in the telecom related IPSO be illustrated? RQ3) How can the Actors and System Map method be refined? In order to answer the research questions different methodologies were used for the analysing process. The research started with a widespread literature study to collect knowledge related to the area of Product Service System (PSS) and methodologies for identifying how actors interact with one another. Studying different mapping methods the conclusion was made that Actors and System Map was most suitable for this study. In the methodology background the previous selected method, Actors and System Map from an Integrated Product Service Offering (IPSO) perspective, was examined in order to be able to refine and improve the mapping method. Actors Map provides a visual and clear overview of the actors involved while a System Map shows the information flows and activities between the actors. To understand the interaction between the two companies, the definition of IPSO and the importance of value-based selling for a service offering are described in the theory background. Also, different ways of looking at a business model within the telecommunication industry is presented. Obtaining information regarding making an Actors Map and a System Map an improved mapping method was refined. The adaption of the method was divided into eight steps. The refined Actors Maps of the DCP shows the actors involved, how they are connected and their main assignments from each respondent’s point of view at Ericsson. The refined System Map shows what kind of information is transferred between the actors within the companies and between Orange and Ericsson. Both maps delivered as a decision basis will help identification of non-value giving links and non-optimal distances in the information flow for both companies.
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以最大測驗訊息量決定通過分數之研究 / Study of the Standard Setting by the Maximum Test Information謝進昌, Shieh, Jin-Chang Unknown Date (has links)
本研究目的,乃在運用試題反應理論中最大測驗訊息量的概念於精熟標準設定上作為探討的主軸,透過其歷史的演進與發展,衍生出詮釋本研究最大測驗訊息量法的三個面向,分別為:元素的搭配組合與調整、廣義測驗建構流程、多元效度等,並以此概念賦予解釋運用最大測驗訊息量於精熟標準設定時的合理性與適切性。同時,確立最大測驗訊息量法於公式意涵、試題選擇與統計考驗力面向的合理性,建立其於精熟標準上的理論基礎,而後,再輔以精熟/未精熟者分類一致性信度值以期提供多元效度證據。最後,探討測驗分數的轉換方法、差異能力描述,期能同時獲得量與質的測驗結果解釋。
綜整分析,可發現以下幾點結論:
一、運用最大測驗訊息量法於精熟標準設定時,在分類的信度指標上,顯示由此求得精熟標準,經交叉驗證後,大致可獲得滿意的結果,皆有高達九成以上的精確分類水準,且藉由區間的概念亦能充分顯現出,以最大測驗訊息量法求得之標準,可作為專家設定精熟標準時參考、判斷的優勢。而在分數轉換上,不論搭配換算古典測驗分數法或測驗特徵曲線構圖法時,其分類精熟/未精熟者的一致性表現,大致可獲得滿意的結果,乃是值得參照的組合策略。
二、在運用定錨點以解釋由最大測驗訊息量法於國中基本學力測驗求得之精熟標準時,可發現未精熟者乃僅需具備學科基礎知識與簡易圖示理解能力,而對於精熟者而言,則需進一步擁有對於廣泛學科知識的了解;複雜問題、資料與圖表詮釋;邏輯推理、分析實驗結果以獲得相關論點等能力,或者更高階之具備進階學科知識;綜合、評鑑資料、情境傳遞之訊息的能力。
三、探討測驗長度因素時,分析結果顯示不論採行最大測驗訊息量法、換算古典測驗分數法或是測驗特徵曲線構圖法,皆受此因素的影響,顯示測驗長度愈長,分類一致性愈高,此項結果乃與過去大多數的研究一致。另,由本資料分析結果乃建議測驗長度20題時,會是必備的基本題數要求值。此外,若從細部精確錯誤分類人數角度分析時,於實務用途上,可發現對於影響轉換分數時,產生差異分數的因素,決策者並不容易掌握與控制,但卻可藉由增加測驗長度,分散分數點的人數,以彌平錯誤分類的影響。
四、探討測驗異質性因素時,最大測驗訊息量法因具有因試題參數而調整估計受試者能力的特性,使得在異質測驗時,分類一致性仍能維持在不錯的水準之上。反觀換算古典測驗分數法與測驗特徵曲線構圖法,在固定精熟標準下,則有明顯的錯誤分類比率,此現象也反應出現行以固定60分作為及格(精熟)標準的缺失。
五、探討採用簡易測驗、困難測驗或常態測驗間於轉換分數上之效果時,由換算古典測驗分數法或測驗特徵曲線構圖法轉換來自最大測驗訊息量法之精熟標準時,資料分析結果顯示,不論於何種測驗難度類型中,採用何種轉換方式,並不會嚴重影響轉換分數間一致性分類的效果。另,若從細部精確錯誤分類人數角度分析時,本研究所採之最大測驗訊息量法,因具備隨測驗難易程度來決定門檻的特性,於簡易測驗中求得之精熟標準較低,而於困難測驗中求得之精熟標準相對較高,使得於轉換分數上,即使有較大的差異分數,亦不會造成嚴重的錯誤分類人數。
六、在探討測驗長度、測驗異質性因素與定錨點題目篩選間互動關係時,分析結果顯示,測驗長度與測驗異質性,並非是絕對影響定錨點題目篩選的因素,更重要的在於最大試題訊息量所對應之最適能力值是否能與定錨點相搭配。
綜整之,本研究所採最大測驗訊息量法,經檢驗後,於分類一致性上乃具有不錯的表現,且搭配相對強韌、嚴謹的理論支持與適切測驗結果解釋方法等,是最適合用於大型考試上使用。因此,乃建議未來政府單位或實務工作者於進行大型證照、資格檢定考試時,可考慮使用本策略。 / The purpose of this study is to adopt the concepts of IRT maximum test information to standard setting. At first, we are trying to discover three facets of interpretation in using the maximum test information to standard setting through the historical movement of standard setting. The three facets are component combination and adjustment, generalized test construction processes and multiple validities. Depending on these three concepts, we can easily explain the reasonableness and appropriateness of maximum test information approach. After that, we further investigate the reasonableness from the dimensions of definition of formula, item selections and statistical power to establish the basic theory of the maximum information approach in standard setting. In addition, we also examine the effects on exact classification of master/non-master in expectation to provide multiple evidences for validity. Finally, the method of classical test scores transformation and difference ability description are discussed to provide quantitative and qualitative test result interpretation simultaneously.
In sum, some conclusions are proposed.
1.In applying the maximum test information approach to standard setting, the effect on exact classification of master/ non-master may come to a satisfying result. We may have at least 90% exact classification performance. At the same time, we also find that the mastery standard deriving from the maximum test information approach may have some advantages being a starting reference point for experts to adjust on the basis of the view of confidence interval. In the aspect of classical test scores transformation, no matter what approach you take, the transformed classical test scores approach or test characteristic curve mapping method, the consistency of exact classification of master/ non-master may hold. We may suggest the combination strategy is really worthy to take into consideration in standard setting.
2.In applying the anchor point to interpret Basic Competency Test result, we may find non-master only has basic academic knowledge and simple graph understanding ability, but for the master, he may need extensive academic knowledge; ability of complicated problems、data and graph interpretation; logic reasoning、analyzing experimental result to get related issues. Moreover, advanced academic knowledge; ability of synthesizing and evaluating information from data and surroundings are also included.
3.In the aspect of test length, the result of this research shows no matter what approach you take, maximum test information approach、transformed classical test scores approach or test characteristic curve mapping method, they are all influenced. It shows the longer test length, the higher consistency of exact classification of master/non-master. This result is consistent to most of the studies in the past. On the other hand, we suggest the 20 items is a fundamental value. Moreover, from the view of exact number of error classification, we can find that the real factor affecting the difference scores in transforming classical test score is unable to control in practical usage, but we can just disperse the numbers of people in each test score point to reduce the influence of error classification by increasing test length.
4.In the aspect of diverse test difficulty, because the maximum test information approach possesses the characteristic of examinees’ ability adjustment depending on item parameters, it is less influenced to maintain a acceptable level of consistent classification. In contrast with the maximum test information approach, the transformed classical test scores approach and test characteristic curve mapping method may have obvious high ratio of error classification under the fixed mastery standard. This also reflects the deficiency of current fixed 60 points passing scores.
5.In the aspect of analyzing the effect of score transformation between easy、hard and normal test, this research shows no matter what approach you take in any type of test difficulty, they may not severely influenced. Furthermore, from the view of exact number of error classification, because the maximum test information approach possesses the characteristic of deciding passing level depending on the degree of test difficulty (the lower mastery standard in easy test and the higher in hard test), it may not lead to a severe error classification even if there exists a large difference score in classical test score transformation.
6.In the aspect of interaction between test length、diverse test difficulty and anchor items selection, this research shows that test length and diverse test difficulty are not the real factors affecting anchor items selection. The more accurate cause is if the mastery standard deriving from the maximum test information approach may coordinate with the anchor point or not.
In sum, the maximum test information approach may not only lead to a satisfying exact classification performance after analysis, but also be supported by strong and strict theory and accompany proper test result interpretation method. It is the most proper method in standard setting for large-sized test. Finally, we suggest the government or practitioners may consider adopting this strategy for future usage.
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Nullspace MUSIC and Improved Radio Frequency Emitter Geolocation from a Mobile Antenna ArrayKintz, Andrew Lane January 2016 (has links)
No description available.
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