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Assessment of career exploration in childhood, adolescence and adulthood

Araújo, Alexandra Maria Dantas de Castro; Silva, Ana Daniela; Faria, Liliana; Taveira, Maria do Céu
Fonte: Universidade do Minho Publicador: Universidade do Minho
Tipo: Conferência ou Objeto de Conferência
Publicado em //2007 ENG
Relevância na Pesquisa
36.62%
In this study, different career exploration assessment procedures, adjusted to childhood, adolescence and adulthood, are presented and discussed, taking in account theoretical and empirical developments of the construct. The first procedure, aimed for 3 to 10 year-old children, includes the use of the Career Development Child Interview Grid (Araújo & Taveira, 2000; Araújo & Taveira, 2006) and the Self Exploration Guided Task (Araújo, Taveira, & Lemos, 2004; adapted from Gordon, 1968). The second procedure, designed to assess the career exploration process assessment of adolescents aged 14 years-old through adulthood, involves the use of the Career Exploration Survey (Taveira, 1997; adapted from Stumpf, Colarelli, & Hartman, 1983). The last procedures, developed for adults, include the use of the Career Repertory Grid (Silva & Taveira, 2005) and the Career Narrative for adults with low levels of schooling (RVCC-AEP, 2005; Gonçalves, Taveira, & Pereira, 2007). The benefits and qualities of each procedure are discussed. The authors conclude on the need for longitudinal career exploration assessment plans.; Fundação para a Ciência e a Tecnologia (FCT)

Career exploration in Mozambique : exploratory study with secondary students

Ussene, Camilo; Taveira, Maria do Céu
Fonte: Universidade do Minho Publicador: Universidade do Minho
Tipo: Conferência ou Objeto de Conferência
Publicado em //2009 ENG
Relevância na Pesquisa
36.58%
This article is part of a larger research project on the evaluation of career intervention needs in Mozambique. It consists of an exploratory study of the career exploration process of Mozambican students attending the 12th grade. The results of the construct validity and clustering analyses of the responses to the Career Exploration Survey (CES; Stumpf, Colarelli, & Hartman, 1983) are discussed, in the light of the career exploration theory and empirical research, namely the cognitive-motivational approach of career exploration proposed by the CES original authors. Implications for the design of career interventions in Mozambican socio-cultural context are also drawn.; Instituto Português de Apoio ao Desenvolvimento

Exploração, dificuldades de tomada de decisão e indecisão vocacional no ensino básico; Career exploration, decision-making difficulties and indecision in primary education

Mota, Ana Isabel de Bastos
Fonte: Universidade do Minho Publicador: Universidade do Minho
Tipo: Trabalho de Conclusão de Curso
Publicado em //2010 POR
Relevância na Pesquisa
36.62%
Dissertação de mestrado integrado em Psicologia (área de especialização em Psicologia Escolar e da Educação); Este estudo tem como objectivos principais, analisar as relações simultâneas entre os constructos da exploração (Career Exploration Survey, CES, Stumpf, Colarelli & Hartman, 1983; adap. Taveira, 1997), dificuldades de tomada de decisão (Career Decision Difficulties Questionnaire, CDDQ, Gati & Osipow, 2000, 2002; adap. Silva, 2005) e indecisão vocacional (Career Decision Scale, CDS, Osipow, Carney & Barak, 1976; adap. Taveira, 1997), discriminar grupos de sujeitos com base nesta análise, e pensar a intervenção vocacional de jovens baseada nesta evidência empírica. A amostra é constituída por 272 alunos do 9.º ano de escolaridade, 51,5% dos quais são mulheres (N=140) e 48,5% homens (N=132), com idades compreendidas entre os 13 e os 18 anos (M=14,42; DP=0,78), a frequentar escolas da região noroeste do País. A análise de clusters efectuada (K-Means Clustering Analysis) permitiu discriminar quatro grupos diferentes de alunos, em função das variávies vocacionais: (a) Informados Confiantes, (b) Indecisos Ansiosos, (c) Indecisos Informados, e (d) Indecisos Pouco Informados. Discutem-se implicações dos resultados para a intervenção vocacional no Ensino Básico. This study aims to analyze the simultaneous relationships between the constructs of career exploration (Career Exploration Survey...

Estudo do Career Exploration Survey com estudantes do ensino secundário moçambicano

Taveira, Maria do Céu; Ussene, Camilo
Fonte: Universidade do Minho. Instituto de Educação Publicador: Universidade do Minho. Instituto de Educação
Tipo: Conferência ou Objeto de Conferência
Publicado em 19/07/2010 POR
Relevância na Pesquisa
36.58%
This study presents and discusses the psychometric qualities of the Portuguese version of the Career Exploration Survey (CES, Stumpf, Colarelli & Hartman, 1983; Taveira 1997) in a sample of Mozambican students (n = 314) of both sexes (boys n = 120, 38.2%; girls n = 194, 61.8%), attending the 12th grade in six secondary schools (n = 3 public, private n = 3) located in the cities of Maputo and Matola, in the south of Mozambique. In terms of internal consistency, the CES items register Cronbach Alpha coefficients of 0.83. The analysis of the values of Kaiser test-Meyer-Olkin (KMO = 0.709) and of the level of significance registered in Bartlett’s test of sphericity (p = 0.00) suggested the adequacy of the data for an exploratory factorial study. As a result of this, it was chosen a solution of eight factors, consistent with the Portuguese measurement model for 12th grade students, explaining 42.50% of the total variance of the career exploration of the sample, and with internal consistency coefficients ranging from 0.57 (Factor 7, Amount and Satisfaction with Information) to 0.83 (Factor 1, Exploration and Decision Stress). This is a first exploratory study with the CES in Mozambique; it is not possible to conclude definitively on its validity. However...

Student’s engagement in school, academic aspirations, and career exploration of Portuguese adolescents

Veiga, Feliciano; Oliveira, Íris M.; Taveira, Maria do Céu
Fonte: Universidade de Lisboa Publicador: Universidade de Lisboa
Tipo: Conferência ou Objeto de Conferência
Publicado em //2014 ENG
Relevância na Pesquisa
36.73%
This study examined career profiles derived from students’ engagement in school, academic aspirations and sources of career exploration, as part of a larger research project on the differentiation and promotion of students’ engagement in school (Pest-OE/CED/UI4107/2011). The sample included 685 students attending sixth, seventh, ninth and tenth grades (Mage = 13.82, SD = 1.92). The students completed measures of engagement in school, academic aspirations and career exploration. Based on a non-hierarchal cluster analysis (K-means clustering), three career profiles of students were identified. The profile disengaged looking for other opportunities included students (n = 135; Mage = 14.6, SD = 2.12) with values lower than the group’s mean score in the agency, affective, cognitive and behavioural dimensions of engagement in school, in academic aspirations, and higher values than the group’s mean values in self- and environment exploration. The profile confident students (n = 281; Mage = 13.45, SD = 1.71) presented values higher than the group’s mean score in the four dimensions of engagement in school, in academic aspirations and in self- and environment exploration. The profile slightly disengaged without other options included students (n = 269; Mage = 13.83...

Between the Arctic & the Adriatic: Polar Exploration, Science & Empire in the Habsburg Monarchy

Walsh, Stephen Anthony
Fonte: Harvard University Publicador: Harvard University
Tipo: Thesis or Dissertation
EN_US
Relevância na Pesquisa
36.67%
Exploration was a defining aspect of how European societies encountered and established relations with the wider world. It set the stage for worldwide empires and laid the foundations for understandings of planetary existence. Exploration facilitated the exchange of commodities and ideas, the migration of peoples and the construction of scientific knowledge. This dissertation examines the nexus between ice and imperium through a study of how citizens of the Habsburg Monarchy contributed to polar exploration. In the long nineteenth century, the two main objects of European exploration were Africa and the polar regions. In the former, the dynamic between exploration and empire was fairly straightforward. But how did imperialism function in the frozen, uninhabited, latitudes of the world? This question becomes more problematic for the Habsburg Monarchy, a multinational polity with eleven officially recognized languages, and a self-professed empire that was the one European "Great Power" at the time without overseas colonies. This dissertation analyzes how the symbology and practice of polar exploration was used in the service of sundry - and frequently contradictory - political projects, including various nationalist activisms, Habsburg loyalism...

Exploration e exploitation: um olhar no setor de refino de petróleo sob a dimensão do aprendizado organizacional

Ribeiro, Luciano Maciel; Satt Júnior, Sergio
Fonte: Universidade Federal do Rio Grande Publicador: Universidade Federal do Rio Grande
Tipo: Artigo de Revista Científica
POR
Relevância na Pesquisa
36.65%
O objetivo desse artigo é revisar os conceitos Exploration e Exploitation publicados por March (1991), através da identificação dos atributos relacionados com esses conceitos, identificar as possíveis vantagens competitivas para empresas de refino de petróleo com a aplicação dos conceitos de Exploration e Exploitation. Para o desenvolvimento deste estudo foi utilizada a pesquisa bibliográfica, compreendendo a investigação em artigos e livros relevantes nestes conceitos apresentados. O trabalho tenta colocar foco na oportunidade da utilização do aprendizado organizacional como forma de melhorar os processos de refino, identificando as alterações de procedimentos e controles para redução de custos (Exploitation) e as possibilidades de redução dos efeitos nos processos, mostrando também o espaço nesse segmento para novas inovações (Exploration).; The objective of this paper is to review the concepts Exploration and Exploitation published by March (1991), by identifying the attributes related to these concepts, identify possible competitive advantages for businesses of oil refining with the application of the concepts of Exploration and Exploitation. To develop this study we used the literature, including research articles and books relevant these concepts presented. The paper tries to put focus on the opportunity of using organizational learning as a way to improve the refining processes...

Kazakhstan Legislation for Allocation of Mining Exploration Rights : Report 1. Allocation of Exploration Rights for Mining in a Sample of Major Global Mining Countries

World Bank
Fonte: Washington, DC Publicador: Washington, DC
EN_US
Relevância na Pesquisa
36.77%
This study has been undertaken to provide input to the Government of Kazakhstan on mineral exploration policy. The purpose is to offer advice for policy reform in the mineral sector. It examines best practices in licencing and regulation for mineral exploration. It will review common best practices which pertain to mineral exploration on a world-wide basis. It will also provide examples of countries which have instituted best practices in their legislation and how that has assisted in attracting foreign investment in the sector. Countries which will be studied are Australia (Western Australia), Chile, Sweden, Ghana and the Philippines. Other countries are discussed to provide a necessary example of the need for transparency, consistency and fairness. These are Argentina and Mongolia. Information on each of these countries is different depending upon the transparency of information that is available. This study has attempted to show how these countries have dealt with international investment through policy and legislative initiatives.

Phyto-exploration in arid subtropical, arid mediterranean and tropical savanna environments: biogeochemical mechanisms and implications for mineral exploration.

Reid, Nathan
Fonte: Universidade de Adelaide Publicador: Universidade de Adelaide
Tipo: Tese de Doutorado
Publicado em //2009
Relevância na Pesquisa
36.74%
Vegetation sampling is an effective exploration technique in areas of transported cover where other techniques have been of limited success. Several plant species were sampled along transects across 9 known Au ore bodies; Triodia pungens was found give a Au, As, ±Zn, ±S, ±Ce and ±La signature which represented mineralisation through cover materials and Eucalyptus brevifolia was found to give a geobotanical and ±Ca, ±Mg, P, S and Zn signature of underlying geological structure. The Hyperion prospect was used as a ‘blind’ target as there was no background information available until after interpretation was carried out. Mineralisation was located at the contact between granite and dolerite, biogeochemical signatures from E. brevifolia and Acacia bivenosa showed areas of change in ±Au, Ba, Ce, ±Cu, La, ±Mn, Nd, P, S, Sm, Y and Zn which corresponded to this contact. All species in the Pine Creek Orogen were able to present areas elevated in Au, As, ±Zn, ±S, ±Mo and ±Cu which provide future drilling targets. Biogeochemical sampling was able to determine the location of mineralisation at each site and identify underlying substrate changes, however, background knowledge relating to regolith, geology, hydrology and geophysics are important in aiding the interpretation of the elemental data as each component of the substrate influences the elements which a plant will uptake. Mineral exploration in Australia has been driven by the search for large ore deposits close to the surface. This has led to the need to develop technologies for detecting mineral deposits under cover...

Design space exploration for real-time embedded stream processors

Rajagopal, Sridhar; Cavallaro, Joseph R.; Rixner, Scott; Rajagopal, Sridhar; Cavallaro, Joseph R.; Rixner, Scott
Fonte: Universidade Rice Publicador: Universidade Rice
Tipo: Artigo de Revista Científica
ENG
Relevância na Pesquisa
36.58%
Journal Paper; We present a design framework for rapidly exploring the design space for stream processors in real-time embedded systems. Stream processors enable hundreds of arithmetic units in programmable pro-cessors by using clusters of functional units. However, to meet a certain real-time requirement for an embedded system, there is a trade-off between the number of arithmetic units in a cluster, number of clusters and the clock frequency as each solution meets real-time with a different power consumption. We have developed a design exploration tool that explores this trade-off and presents a heuristic that minimizes the power consumption in the (functional units, clusters, frequency) design space. Our design methodology relates the instruction level parallelism, subword parallelism and data parallelism to the organization of the functional units in an embedded stream processor. We show that the power minimization methodology also provides insights into the functional unit utilization of the processor. The design exploration tool exploits the static nature of signal processing workloads, providing an extremely fast design space exploration and provides an initial lower bound estimate of the real-time performance of the embedded processor. A sensitivity analysis of the design tool results to the technology and modeling also enables the designer to check the robustness of the design exploration.

The Relationship between Exploration and Exploitation Strategies, Manufacturing Flexibility, and Organizational Learning: An Empirical Comparison between Non-ISO and ISO Certified Firms

Tamayo-Torres, Javier; Guti??rrez-Guti??rrez, Leopoldo; Ruiz-Moreno, Antonia
Fonte: Elsevier Publicador: Elsevier
Tipo: Artigo de Revista Científica
ENG
Relevância na Pesquisa
36.65%
The markets in which organizations currently operate require them to use behaviour based on both exploitation strategy and exploration strategy, each of which contributes fundamental benefits for the firm???s success. Exploitation strategy attempts to obtain the maximum advantage from existing abilities, whereas exploration strategy searches for new ways for the organization to adapt. Further, since manufacturing markets are characterized by short product life, they require a high level of manufacturing flexibility, which can play a crucial role in the development of the exploitation and exploration strategies. This study analyses the relationship of manufacturing flexibility to exploitation and exploration strategies, taking into account an issue of maximum international scope: the implementation of ISO standards. In many international markets, ISO implementation is crucial in enabling organizations to be competitive. However, no consensus has been reached concerning the real benefits that these systems provide to the organizations that implement them. The main goal of our study is to analyse whether there are significant differences in the relationship of manufacturing flexibility to exploitation and exploration strategies in ISO 9001:2000 certified organizations and non-certified organizations. Our results show that most of the relationships analysed are only significant in ISO certified organizations. As an added value...

Exploration and Mapping using VFM Motion Planner

Garrido, Santiago; Moreno, Luis; Blanco Rojas, Dolores
Fonte: Institute of Electrical and Electronics Engineers (IEEE) Publicador: Institute of Electrical and Electronics Engineers (IEEE)
Tipo: info:eu-repo/semantics/publishedVersion; info:eu-repo/semantics/article Formato: application/pdf
Publicado em /08/2009 ENG
Relevância na Pesquisa
36.58%
Efficient mapping of unknown environments is a fundamental function for mobile robot intelligence. To do so requires good exploration strategies and solving the simultaneous localization and mapping problem. The approach presented in this paper is an integration of our solutions into the problems of exploration and map building with a single robot. The exploration algorithm is based on the Voronoi fast marching (VFM) method to determine a motion plan toward the most unexplored and free zones of the environment. One consistent global map of the workspace is created using the simultaneous localization and modeling (SLAM) algorithm based on a nonlinear evolutive filter called the evolutive localization filter. The combination of the extended Voronoi transform and the fast marching method in the VFM method provides potential maps for robot navigation in previously unexplored dynamic environments. The logarithm of the extended Voronoi transform imitates the repulsive electric potential from walls and obstacles. The method uses a fast marching technique to determine a motion plan. A new strategy such that the robot determines the zones that it must explore in an autonomous way is described. As the robot carries out the exploration, it constructs a consistent map of the environment using the SLAM algorithm.; 13 pages...

Rwanda Petroleum Exploration Capacity Building Project

World Bank
Fonte: Washington, DC Publicador: Washington, DC
Tipo: Economic & Sector Work :: Mining/Oil and Gas; Economic & Sector Work
ENGLISH; EN_US
Relevância na Pesquisa
36.67%
The petroleum sector is not very well developed at the present time in Rwanda. The only petroleum related activity at this time in Rwanda is the extraction of dissolved methane from the waters of Lake Kivu. This report is the result of a short term consulting contract with the World Bank Group and FJG energy advisors concluded on September 1st 2009. This report is a result of a mission to Rwanda September 12th-25th, 2009. It is not intended as an in depth analysis of the capacity needs for the petroleum sector in Rwanda, as this was completed in March 2009 by bridge consult AS, but rather as an evaluation of the 'practical and operational' perspectives in developing a local petroleum industry focused on exploration. Further advice in dealing with potential interested companies was also offered in the context of an overarching petroleum policy. The main objectives of the assignment were to: enhance the familiarity on the part of key government officials with the main technical and economic concepts of the petroleum exploration and production industry; develop understanding within Government of Rwanda of the potential impacts (positive and negative) of an active petroleum exploration and production industry in a developing country; familiarize government officials with the fundamental policy issues they will face as petroleum exploration and development activities unfold in Rwanda with an emphasis on those up-front policy decisions needed at the earliest phases of activity; and prepare key officials to take a front line role in policy formulation and negotiation with private investors.

Petroleum Exploration and Production Rights : Allocation Strategies and Design Issues

Tordo, Silvana; Johnston, David; Johnston, Daniel
Fonte: World Bank Publicador: World Bank
Tipo: Publications & Research :: Publication; Publications & Research :: Publication
ENGLISH
Relevância na Pesquisa
36.58%
Petroleum has become an integral part of today's global economy and a key component of many national economies. Hence, the presence of petroleum in meaningful quantities can have important economic, developmental, and strategic consequences for a country. While a country's petroleum resource base is a gift of nature, translating this resource into saleable crude oil requires investment and effort. Whether governments choose to invest directly or allow private investors to do so, their primary concern should be to maximize the social benefits derived from the exploitation of the resource base. In practice, however, defining what constitutes maximum social welfare is essentially a political question, which helps explain the variety of objectives pursued by governments over time. In order to exploit their natural resources efficiently, many governments rely on private oil companies. Governments have a challenging task in deciding which companies should be awarded the exclusive rights to explore, develop, and produce their resources...

Geophysical research and progress in exploration

White, J. E.; Press, Frank
Fonte: Society of Exploration Geophysicists Publicador: Society of Exploration Geophysicists
Tipo: Article; PeerReviewed Formato: application/pdf
Publicado em /02/1960
Relevância na Pesquisa
36.58%
This is the fourth in a series of review papers dealing with technological developments in exploration and with geophysical research at universities and industrial laboratories. Among the developments in exploration, the use of reproducible recording of seismic records continues to grow, with a trend toward digitizing reflection data for further computation. Refined digital methods have been developed for computation of synthetic seismograms. Well-logging developments have included the appearance of a resistivity logger capable of being pumped down the drill pipe; the availability of more tools for logging seismic velocity, accompanied by laboratory investigations of the manner in which seismic velocity is affected by porosity, fluid content, and other factors; commercial use of the scattered-gamma ray density tool; and further interest in gamma ray spectral logs. Remarkable advances have been made in the techniques of gravity measurement aboard surface vessels and aircraft, although the results are not directly applicable to prospecting. The proton precession magnetometer is being used in commercial air-borne surveys, but the rubidium vapor magnetometer is not available as an exploration tool. The development of a Doppler-positioned navigation method has greatly facilitated air-borne surveys. A ship-borne seep-detector has been outfitted for exploration in water-covered areas. A review is presented of research on all phases of geophysics at academic institutions in the United States...

Cracking the Ice on Arctic Oil and Gas Exploration

Hayes, Megan
Fonte: Universidade Duke Publicador: Universidade Duke
Tipo: Masters' project
Publicado em 24/04/2015
Relevância na Pesquisa
36.58%
The Arctic, abundant in hydrocarbon resources, has been considered by the oil and gas industry to be the next big play. The potential resources are expected to challenge if not trump those available in the Middle East. As the arctic regions melt due to a warming climate, the previously treacherous and inaccessible regions are suddenly enticing enough to allow exploration for the very hydrocarbon resources that are largely responsible for the warming trends, creating the so-called Great Arctic Paradox. The paradox increases pressure to choose between competing goals—reduce climate change impacts or increase energy independence and expand energy supply outside of OPEC nations. These tensions are not new, and indeed are playing out in the United States in a variety of other arenas including in debates over hydraulic fracturing and offshore oil leasing off the East Coast of the U.S. However, the fragile nature of the Arctic ecosystem and the numerous state and non-state actors in the Arctic makes these tensions even more acute. In this Master’s Project I highlight these tensions and assess the economic and ecological feasibility and desirability of oil and gas exploration and extraction in the Arctic. To do this I review the climate science and ecology of the Arctic environment and how this is likely to be impacted by oil and gas exploration. I then examine the economic drivers of demand for Arctic energy...

Hierarchical task allocation in robotic exploration

Hawley, John
Fonte: Rochester Instituto de Tecnologia Publicador: Rochester Instituto de Tecnologia
Tipo: Tese de Doutorado
EN_US
Relevância na Pesquisa
36.71%
Autonomous robotic exploration has long been a topic of interest in robotics research. Robotic exploration promises the ability to explore otherwise unreachable or hostile environments. Autonomous exploration is particularly useful in distant or hostile environments in which real-time communication with a human controller may not be practical, such as deep sea or planetary exploration. In order to more effectively explore a large unknown area, multiple robots may be employed to work cooperatively. While cooperation among multiple robots allows for increased exploration potential, it also entails significantly more complex planning. This complex planning involves allocation of exploration tasks to the robots participating in the exploration. Task allocation for multi-agent systems has applications in a wide variety of fields, but specifically in robotics, it makes a level of autonomy possible that is difficult to achieve otherwise. Task allocation has been approached in a variety of ways, depending largely on the nature of the tasks considered. Some problems present very specific tasks, allowing task allocation algorithms for them to be very domain-specific. This thesis presents an analysis of various task allocation approaches that have been taken specifically for autonomous robotic exploration...

A History: The U.S.D.A.--Longwood Ornamental Plant Exploration Program

Tschanz, Eric
Fonte: University of Delaware Publicador: University of Delaware
Tipo: Tese de Doutorado Formato: Note: Except for the faculty signature page, which was not digitized, the entire thesis was scanned as formatted by the author.
EN_US
Relevância na Pesquisa
36.67%
Our gardens contain many exotic plants imported in a variety of ways. The earliest ornamental plant exchanges resulted from the efforts of private individuals: John Bartram , Benjamin Franklin, and others, in the 1700s. The passage of the Treasury Circular Act of 1827, although offering no financial assistance, was the first governmental recognition of the importance of plant importation. Next, with the establishment of the United States Department of Agriculture (U.S.D.A.) in 1862, the government became active in seed and plant procurement and distribution. Later, during the early 1900s, plant exploration reached its peak with the legendary work of explorers such as Ernest H. Wilson, David G. Fairchild, and Frank N. Meyer. During the Depression and World War II interest and support waned and ornamental plant exploration came to a standstill, but in 1956 foreign plant exploration for ornamentals was revived with the establishment of the U.S.D.A.-Longwood Ornamental Plant Exploration Program. Longwood Gardens, Inc., entered into an agreement with the Agricultural Research Service of the U.S.D.A. for the purpose of ornamental plant exploration in foreign countries. The cooperative contract described the arrangement between the two agencies: Longwood was to provide funds for the exploration...

Bioinspired engineering of exploration systems: A horizon sensor/attitude reference system based on the dragonfly ocelli for Mars exploration applications

Chahl, Javaan; Thakoor, S; Le Bouffant, Naig; Stange, Gert; Srinivasan, Mandyam V; Hine, B; Zornetzer, S
Fonte: Wiley-VCH Verlag GMBH Publicador: Wiley-VCH Verlag GMBH
Tipo: Artigo de Revista Científica
Relevância na Pesquisa
36.67%
Bioinspired engineering of exploration systems (BEES) is a fast emerging new discipline. It focuses on distilling the principles found in successful, nature-tested mechanisms of specific crucial functions that are hard to accomplish by conventional methods, but are accomplished rather deftly in nature by biological organisms. The intent is not just to mimic operational mechanisms found in a specific biological organism but to imbibe the salient principles from a variety of diverse organisms for the desired crucial function. Thereby, we can build exploration systems that have specific capabilities endowed beyond nature, as they will possess a mix of the best nature-tested mechanisms for each particular function. Insects (for example, honey bees and dragonflies) cope remarkably well with their world, despite possessing a brain that carries less than 0.01% as many neurons as ours does. Although most insects have immobile eyes, fixed focus optics, and lack stereo vision, they use a number of ingenious strategies for perceiving their world in three dimensions and navigating successfully in it. We are distilling some of these insect-inspired strategies for utilizing optical cues to obtain unique solutions to navigation, hazard avoidance...

Developing Nomad for Robotic Exploration of the Atacama Desert

Wettergreen, D.; Bapna, D; Thomas, G
Fonte: Elsevier Publicador: Elsevier
Tipo: Artigo de Revista Científica
Relevância na Pesquisa
36.58%
Recent years have seen renewed attention to planetary exploration, and robotics is recognized as essential to many upcoming missions. In this article we describe the ongoing efforts of the Nomad project to develop robots for planetary and terrestrial exploration. The project is developing, demonstrating, and evaluating systems capable of long-distance, long-duration missions. In 1997 this work has resulted in the Atacama Desert Trek, in which a mobile robot named Nomad, explored the Atacama Desert of northern Chile. Nomad's 45-day objective was to travel 200 km across the rugged, barren landscape. We then will describe the technologies for Nomad's transforming chassis, high data-rate communication, safeguarded teleoperation and autonomy, panoramic imaging and visualization, and remote science. We then focus on issues of long-distance, long-duration exploration and describe the events and results of the Atacama Desert Trek.