MIVIS image geocoding experience on merging position attitude system data and public domain GPS stream (ASI-GeoDAF)

The use of airborne scanners involves geo-referencing problems, which are difficult because of the need to know the exact platform position and attitude for each scan line. The errors of the onboard navigation system are normally corrected using ground control point on the image. This post-processing correction procedure is too long in case of multiple flight campaigns, and besides it implies the need to have available 1:10000 orthophotoimages or maps in digital format. To optimize the above procedure a new method to correct MIVIS navigational data in the post-processing phase has been implemented. The procedure takes into consideration the GPS stream in Rinex format of common knowledge and findable on the web, acquired at the ground stations of the Geodetic Data Archiving Facilities provided by ASI. The application of this correction entails the assumption that the environmental variables affecting both onboard and geodetic GPS equally affect the position measurements. The airborne data correction was carried out merging the two data sets (onboard and ground station GPS) to achieve a more precise aircraft trajectory. The present study compares the geo-coded images obtained by means of the two post-processing methods

Il servizio WCTS del Geoportale Nazionale

The 2007/2/CE INSPIRE directive requires every Member State to implement a set of services to facilitate the interchange of spatial data; the Coordinate Transformation Service (CTS) is one of the geometric transformation services required by the directive. The Italian National Geoportal (GN) has recently published a new set of public access services that enable the users to transform and convert the coordinate reference system of geographic data within the Italian territory using the high-accuracy correction data provided by the Istituto Geografico Militare Italiano (IGM). This article will illustrate these newly published services: a browser-based web application to transform raster and vector files or sets of coordinates and an OGC-compliant Web Coordinate Transformation Service (WCTS) that performs on the fly transformation of GML (Geography Markup Language) data

Erodibilidade do solo nos tabuleiros costeiros.

Para determinar perdas de solo por erosão hídrica, em diferentes situações, são utilizados modelos de predição de erosão, como a Equação Universal de Perdas de Solo (EUPS). A aplicação destes modelos, no planejamento agrícola e ambiental, depende da determinação dos fatores da EUPS, dentre estes a erodibilidade (fator K). Este estudo teve como objetivo determinar a erodibilidade, para as principais classes de solos da região dos Tabuleiros Costeiros, em Aracruz (ES). O experimento foi instalado nos seguintes solos: Argissolo Amarelo textura média/argilosa (PA1), Plintossolo Háplico (FX) e Argissolo Amarelo moderadamente rochoso (PA2). Para o cálculo da erodibilidade, foram utilizados dados de erosividade e de perdas de solo de novembro de 1997 a maio de 2004. As coletas de perdas de solo foram realizadas para cada evento de chuva considerada erosiva. Os valores de erodibilidade foram 0,007 Mg h MJ-1 mm-1; 0,017 Mg h MJ-1 mm-1; e 0,0004 Mg h MJ-1 mm-1, para PA1, FX e PA2, respectivamente

The QARMAv2 Family of Tweakable Block Ciphers

We introduce the QARMAv2 family of tweakable block ciphers. It is a redesign of QARMA (from FSE 2017) to improve its security bounds and allow for longer tweaks, while keeping similar latency and area. The wider tweak input caters to both specific use cases and the design of modes of operation with higher security bounds. This is achieved through new key and tweak schedules, revised S-Box and linear layer choices, and a more comprehensive security analysis. QARMAv2 offers competitive latency and area in fully unrolled hardware implementations. Some of our results may be of independent interest. These include: new MILP models of certain classes of diffusion matrices; the comparative analysis of a full reflection cipher against an iterative half-cipher; our boomerang attack framework; and an improved approach to doubling the width of a block cipher

Moral Disengagement and Generalized Social Trust as Mediators and Moderators of Rule-Respecting Behaviors During the COVID-19 Outbreak

In this study, we tested a theoretical model with moral disengagement, a mediator, and generalized social trust (GST), a mediator and a moderator of the relationship between personality traits and rule-respecting behaviors (i.e., social distancing and stay-at-home), during the coronavirus disease 2019 (COVID-19) outbreak in Italy. The data were collected on 1520 participants (61% males). General results are threefold: (1) moral disengagement mediated the relationship between emotional stability, narcissism, psychopathy, and social distancing; (2) among components of GST, trust in Government mediated the relationship between psychopathy and social distancing; trust in known others mediated the relationship between emotional stability, agreeableness, and Machiavellianism with total number of exits; trust in unknown others mediated the relationship of emotional stability, agreeableness, conscientiousness, and psychopathy with average daily number of exits; (3) GST moderated the indirect effect of personality traits on rule-respecting behaviors through moral disengagement. The theoretical and practical importance of these results is discussed

Moral disengagement and generalized social trust as mediators and moderators of rule-respecting behaviors during the COVID-19 outbreak

In this study, we tested a theoretical model with moral disengagement, a mediator,and generalized social trust (GST), a mediator and a moderator of the relationshipbetween personality traits and rule-respecting behaviors (i.e., social distancing andstay-at-home), during the coronavirus disease 2019 (COVID-19) outbreak in Italy. Thedata were collected on 1520 participants (61% males). General results are threefold: (1) moral disengagement mediated the relationship between emotional stability, narcissism,psychopathy, and social distancing; (2) among components of GST, trust in Governmentmediated the relationship between psychopathy and social distancing; trust in knownothers mediated the relationship between emotional stability, agreeableness, andMachiavellianism with total number of exits; trust in unknown others mediated therelationship of emotional stability, agreeableness, conscientiousness, and psychopathywith average daily number of exits; (3) GST moderated the indirect effect of personalitytraits on rule-respecting behaviors through moral disengagement. The theoretical andpractical importance of these results is discussed

MIVIS image geocoding experience on merging position attitude system data and public domain GPS stream (ASI-GeoDAF)

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Avaliação do padrão tecnológico e tendências da Agricultura de Precisão - Safra 2011/12.

Resumo: Embora os conceitos e tecnologias da Agricultura de Precisão (AP) são bastante difundidos no Brasil, a AP ainda é pouco utilizada em algumas regiões produtoras de grãos. O presente trabalho teve como objetivo fazer um levantamento sobre a utilização da AP, por meio da aplicação de um questionário via web e impresso. Foram encaminhados 250 e-mails convidando produtores e técnicos a responderem o questionário, além da realização de uma reunião técnica sobre AP em Guaraí/TO. Após análise das respostas obtidas, 67% dos produtores que responderam ao questionário informaram que iniciaram as atividades de AP entre dois e cinco anos. O tamanho do grid mais utilizado é de 5 hectares, sendo o serviço predominantemente realizado por empresas prestadoras de serviço, contudo os equipamentos e a interpretação dos resultados é realizada pela equipe técnica da propriedade. Embora não consigam observar a redução no custo de produção com a utilização da AP, os produtores discordam que os custos da AP sejam maiores que os benefícios observados. Além disso, os equipamentos e softwares hoje empregados na AP são um obstáculo ao crescimento e ao investimento na tecnologia. Como o questionário foi respondido por produtores e técnicos de diversas regiões do Brasil, constatou-se que o trabalho com AP ainda é bastante recente. Mesmo com conhecimento sobre a técnica e os benefícios que a tecnologia proporciona a utilização ainda é bastante restrita e necessita de mais acesso à informação e capacitação técnica, a fim de ter um uso mais eficaz e eficiente