1,720,973 research outputs found
Application of Satellite Remote Sensing for Detection of Abiotic Stress in Coniferous Landscapes
No full textIn the article is made an overview of the application of different satellite remote sensing methods and technologies in detection of the abiotic stress in coniferous landscapes. The review paper is discussing in short the application of different remote sensing technologies such as: satellite multispectral and infrared (thermal), imaging spectrometry and fluorescence imaging. The studied period spans from the onset of the satellite remote sensing in the 1960s until present day. In conclusion, are drawn requirements for the perspective technologies in satellite remote sensing which should address the fast and reliable detection of the manifestation of abiotic stress in coniferous landscapes
Review of the Applications of Satellite Remote Sensing in Organic Farming (Part I)
Full text linkOrganic farming is a much more sustainable farming system than conventional farming. It is part of humanity's efforts to preserve biodiversity and provides healthy and safe food to humans. Remote sensing methods are widely used in agriculture. Their use will help the transition from conventional to organic farming. They can help farmers choose the most suitable place to build an organic farm. Remote sensing methods are a very powerful tool for weed control in organic farming. They can be used to determine the level of stress that crops experience. They provide a good opportunity to forecast yields on organic farms. Remote sensing methods can optimize fertilization on organic farms. They can be used to distinguish between organic and conventional agriculture, as well as to monitor biodiversity in agricultural areas. Remote sensing methods can help organic farmers make timely and adequate decisions in managing their farms
Possibilities of forecasting the yield of organic wheat using aerospace methods
Full text linkWith climate change, adverse natural phenomena, such as floods and droughts, are becoming more common, which in turn are a major threat to wheat yields. Almost all regions of the planet are vulnerable to such climatic events. Remote sensing methods can help farmers by giving them up-to-date information on the condition and yield forecasting of wheat crops, thus minimizing the risk of climate change
REVIEW OF THE APPLICATIONS OF SATELLITE REMOTE SENSING IN ORGANIC FARMING – PART II
Full text linkThe use of remote sensing methods for monitoring, managing, and decision support in
agriculture is increasingly intensifying. With the advancement of technologies, they become more
accessible, while the quality and security of the obtained data are improving. Striving to improve
the quality of the environment and its preservation, expanding the areas occupied by organic farming
will allow us to achieve these goals. At the same time, this type of agriculture provides healthy and safe
food. For this reason, it is of great importance to start applying satellite data in organic farming as
quickly as possible. In Part II of the "Review of the applications of satellite remote sensing in organic
farming," we examine the various areas of satellite data application in organic farming. Five different
areas of satellite data application in organic farming have been identified, including satellite remote
sensing monitoring of weeds, remote sensing of crop stress and irrigation needs, yield forecasting using
remote sensing methods and remote sensing monitoring of plant nutrition. From the review conducted,
we found that satellite data can significantly support and facilitate the transition to organic farming,
adequate fertilization, application in phytosanitary monitoring of crops, and assessment of crop stress
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Opportunities for Remote Sensing Applications in Organic Cultivation of Cereals – a Review
Full text linkIn recent years, a number of studies have proven that the conventional agricultural system is not sustainable, toxic to the environment, human health, and its potential to feed humanity is limited to the next 50 years. With this in mind, as well as the increasing demand for healthy and safe foods, and the increase in the proportion of people who care about how the food they consume was produced, how much it does not harm the environment and health, farmers are starting to reorient their production into organic. Over the past 40 years, remote sensing methods and technologies have increasingly been used in agriculture. They have proved extremely useful for optimizing the working processes in the sector, as well as solving many of the problems in it. With this report, we aim to draw the scientific community's attention to the possibilities provided by remote sensing methods and technologies to solve a range of problems related to organic cultivation of cereals
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
METHODOLOGY FOR REMOTE SENSING MONITORING OF ORGANIC WHEAT CROPS
Full text linkIn the presented methodology for aerospace monitoring of autumn wheat crops, grown under the conditions of organic farming, the ways of applying ground and aerospace methods are discussed in detail. This includes field experiments, phenological observations, GIS and remote sensing methods and data (data from Sentinel-2 satellite and WingtraOne unmanned aerial vehicle with MicaSense RedEdge-MX multispectral camera and RGB camera) and statistical analyses. In order to achieve the aim and objectives of the study, an experiment was conducted on a organically certified production field sown with einkorn (Triticum monococum) in the period 2020-2021. The field is part of the holding of ET "Borislav Slavchev" in the village of Byala Reka, Parvomai Municipality, South-Central Bulgaria on the soil type of leached chernozem clays, with a size of 136 da
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