Cornell University remote sensing program

The major activities of the program staff from December 1, 1973 to May 31, 1974 are reported and include: (1) communication and instruction; (2) data and facilities; (3) research completed; (4) research in progress; (5) selected correspondence; (6) grant sponsored travel; and (7) seminars and newsletters. Detailed information and maps are given for the following selected projects: (1) ERTS mapping of waterways in the Tug Hill region of New York State; (2) photo-archeological investigation of Great Gully, New York; and (3) evaluation of selected highway impacts using aerial photography

Validation Of Entrepreneurial Marketing Dimensions In North Carolina Wineries

The aim of this article is to test and validate a recently developed Entrepreneurial Marketing (EM) scale in the context of North Carolina Wineries. Previous EM literature suggests that EM consists of six dimensions, namely 1) proactive orientation, 2) opportunity orientation, 3) customer intensity, 4) innovation focused, 5) risk management, and 6) value creation. Using confirmatory factory analysis and structural equation modeling on data collected from small businesses (e.g., NC wineries), results confirm that EM consists of five of the proposed six dimensions in the NC winery context. No support was found for risk management to be included in the final model. Implications for theory and future research are discussed

Development of additional sensor capabilities for use in unmanned aerial vehicles under CIDIFA

Alferes Aluno Engenheiro Electrotécnico 138104-A Rafael Parcelas. Supervisor(s): Prof. Doutor Ricardo Adriano Ribeiro; Capt. Gonçalo Charters Santos Cruz; Examination Committee: Chairperson: Brigadier General José Augusto Nunes Vicente Passos Morgado; Supervisor: Doctor Ricardo Adriano Ribeiro; Member of the Committee: Doctor José António da Cruz Pinto GasparVeículos aéreos não tripulados (VANTs) originalmente foram desenvolvidos para aplicações militares que, pela sua natureza não transportam operadores humanos a bordo. Esta dissertação foi realizada no seguimento do projeto Seagull. Este originou da necessidade da geração de um conhecimento situacional marítimo rigoroso e representa um dos esforços da Força Aérea Portuguesa para o cumprimento da sua missão, de acordo com os objetivos definidos pelo Conceito Estratégico de Defesa Nacional. Esta tese tem por objectivo expandir as capacidades já desenvolvidas no projeto Seagull. O trabalho apresentado foi realizado sobre a premissa que o ambiento marítimo é o principal cenário de operação. Assim sendo, um objetivo importante é a capacidade de localizar embarcações a partir dos dados visuais provenientes da aeronave. Cameras equipadas com lentes de parâmetros variáveis revelam-se mais úteis do que as com lentes de parâmetros fixos. As lentes de parâmetros variáveis permitem a um operador obter imagens com melhor qualidade através de ajustes na configuração das lentes, contudo estas não são usualmente usadas em visão computacional devido a dificuldade inerente em modelar variaçães continuas das configurações da camera. Esta tese apresenta uma metodologia para calibração de cameras com zoom variável e a sua utilização numa metodologia de localização geográfica. A metodologia de calibração de cameras apresentada é baseada na técnica de Zhang. Os modelos obtidos dos parâmetros intrínsecos da camera foram testados num equipamento com lentes de zoom numa experiência à escala reduzida do problema da localização geográfica. Utilizando a hipótese da terra-plana, o objetivo desta experiência foi validar tanto os modelos obtidos da calibração como a performance da metodologia para localização de alvos. Identificando a localização em pixeis de um alvo junto com a posição e orientação da camera, as coordenadas de um alvo são determinadas no ”referencial do mundo”. Uma experiência a escala real do problema de localização geográfica foi conduzida na Academia da Força Aérea Portuguesa, onde um conjunto de locais foram selecionados para testar a metodologia desenvolvida. O objetivo desta experiência foi avaliar o trabalho desenvolvido através da determinação das coordenadas geográficas de um alvo nâo cooperativo no solo sob condições reais. Através da comparação de resultados entre as estimativas providenciadas pela metodologia de localização geográfica proposta e as coordenadas GPS dos alvos foi possível identificar fatores e causas de erro possíveis de serem mitigadas. Os resultados obtidos das experiências realizadas revelam uma interdependência entre os parâmetros intrínsecos da camera utilizada e o seu zoom. A metodologia de localização geográfica apresenta resultados promissores para ser utilizada em ambiente marítimo. Contudo, os erros experimentais observados foram categorizados em três fatores. O primeiro fator verificado foi as limitações dos modelos obtidos da calibração da camera. O segundo fator foi a diferença de alturas entre a altitude acima do solo da camera e a altitude acima do alvo. O terceiro e último fator é a influência dos fatores ambientais no ruído da imagem e a sua sensibilidade à prespectiva da imagem para a captura do alvo.Unmanned aerial vehicles (UAVs) were originally designed for military applications, which by nature, did not necessarily required human operators on-board. This thesis was developed following the Seagull Project, which represents one of the Portuguese Air Force attempts to fulfill its mission requirements in compliance with the guidelines of the Strategic National Defense Concept. Developed by the Portuguese Air Force Academy, it originated from a need to generate a more accurate maritime situation awareness of the Portuguese maritime territory. This thesis aims to extend the capabilities previously developed in the Seagull project, which one of the main interests was the ability to geo-locate identified target vessels from the visual data of the aircraft, where the use of camera devices with variable-parameter lenses is more useful than those with fixed-parameter lenses. The variable-parameter lenses enable an operator to obtain better images by adjusting the camera’s lenses to the present conditions of a scene. However, variable parameter lenses are not commonly used in computer vision because they are difficult to model for continuous variations of the lenses configuration. This thesis presents a camera calibration methodology for devices with variable zoom and its employment in a vision-based target geo-location method. The camera calibration method presented in this work is based on Zhang’s technique for camera calibration, were a model of the camera intrinsic parameters is obtained by exploring the interdependence between the camera zoom and its parameters. A small-scale experiment of the geo-location problem was conducted in order to validate both the camera intrinsic parameters models and the proposed geo-location methodology. In this experiment by identifying the pixel location of a target in an image and the measurements of the camera position and pose, the world coordinates of the target are determined. Using the same methodology a full-scale experiment of the geo-location problem was devised. In this a set of location across the Portuguese Air Force Academy Campus were selected to employ the methodology devised. The objective of this experiment was to assess the accuracy of the work presented in this thesis under real-world conditions and the ability to localize an uncooperative ground target using the UAV vision sensor. By comparing the results of the target estimated position obtained from the geo-location methodology with the actual GPS coordinates of the selected locations to identify factors and/or error sources where identified, which can be mitigated. The geo-location methodology developed is a proof of concept that empirically as shown encouraging promises to be employed in a maritime environment. The errors verified in the experimental procedures were mainly caused by three factors. First the precision of the camera variable-parameters models obtained, these are estimates of the real behavior of the lenses and as such are considered empirical approximations. Second the height difference between the camera altitude above ground and altitude above target, which is linked to the flat-earth hypothesis, as such errors can occur from the relative height difference. Third the environmental factors which induce image noise, which with the increasing obliquity of the captured image this errors can be exacerbated as demonstrated in this work.N/

Faculty Publications and Creative Works 2005

Faculty Publications & Creative Works is an annual compendium of scholarly and creative activities of University of New Mexico faculty during the noted calendar year. Published by the Office of the Vice President for Research and Economic Development, it serves to illustrate the robust and active intellectual pursuits conducted by the faculty in support of teaching and research at UNM. In 2005, UNM faculty produced over 1,887 works, including 1,887 scholarly papers and articles, 57 books, 127 book chapters, 58 reviews, 68 creative works and 4 patented works. We are proud of the accomplishments of our faculty which are in part reflected in this book, which illustrates the diversity of intellectual pursuits in support of research and education at the University of New Mexico

Supporting Decisions: Understanding natural resource management assessment techniques

Report to the Land and Water Resources Research and Development Corporation. This document presents a review of NRM decision support techniques. It draws upon previous studies in the fields of management science, operations research, environmental economics and natural resource management. The objectives of the document are to: Explain the workings of the more significant (representative) methods of NRM decision support (including the latest developments); Discuss how these decision support methods may influence the outcome of NRM decisions; and Provide practicing NRM decision makers with guidance for choosing which methods to apply.Australia;natural resource management;assessment;decision support;

Retrieval-, Distributed-, and Interleaved Practice in the Classroom:A Systematic Review

Three of the most effective learning strategies identified are retrieval practice, distributed practice, and interleaved practice, also referred to as desirable difficulties. However, it is yet unknown to what extent these three practices foster learning in primary and secondary education classrooms (as opposed to the laboratory and/or tertiary education classrooms, where most research is conducted) and whether these strategies affect different students differently. To address these gaps, we conducted a systematic review. Initial and detailed screening of 869 documents found in a threefold search resulted in a pool of 29 journal articles published from 2006 through June 2020. Seventy-five effect sizes nested in 47 experiments nested in 29 documents were included in the review. Retrieval- and interleaved practice appeared to benefit students’ learning outcomes quite consistently; distributed practice less so. Furthermore, only cognitive Student*Task characteristics (i.e., features of the student’s cognition regarding the task, such as initial success) appeared to be significant moderators. We conclude that future research further conceptualising and operationalising initial effort is required, as is a differentiated approach to implementing desirable difficulties

Annual Catalog - The School Year 1940-1941

https://digitalcommons.pvamu.edu/pv-annual-catalog/1022/thumbnail.jp

Management of shared groundwater resources : the Israeli - Palestinian case with an international perspective

Co-published with Kluwer Academic PublishersIn many cases groundwater lies beneath boundaries, or is part of a hydraulic system that crosses boundaries. This book explores the options and means for averting conflict and scarce resource depletion through managing shared groundwater resources. In the Israeli-Palestinian case both sides rely on a shared aquifer, the Mountain aquifer, and are embroiled in a long standing highly complex feud. Many see this conflict as a major obstacle for peace between Israelis and Palestinians. The book presents the context, the most important views heard along the seven-year path, and the conclusions reached, which can contribute to similar predicaments that involve resource sharing