Remote and Safe Monitoring of Magnetic Fields Produced by Transmission Lines in Areas of High Concentration of Lightning Strokes

Monitoring of magnetic and electric fields in high voltage transmission lines (HVTL) of power plants and substations (SEs) is contemplated by Brazilian Regulatory Standard 616/2014. The measurement procedures of the magnetic and electric fields in SEs must follow a methodology in case of continuous field monitoring of the power equipment where it is common lightning stroke incidences. These monitoring procedures must be carried out in such a way that the recording of electromagnetic fields is done without necessity of exposuring the technical team to irradiation from the equipment and machines generating electrical power. This paper describes a prototype which is able to produce data at a specified safe distance from the irradiating area. The experimental recorded data was acquired, processed, compared and analyzed in areas of more intense radiation levels, acceptable levels and safe levels. This work aimed to establish basis of a technological innovation for the continuous recording of electromagnetic data, trying to cover the surroundings of transmission lines in urban environments, close to the generating units and substation installations wherever the highest levels of magnetic field could be found

“Актуальні питання енергозбереження як вимога безпеки життєдіяльності”, Міжнародна науково-практична конференція

Розглянуто питання використання металогідридів з метою підвищення безпеки процесів акумулювання та зберігання водню. Описано принципи побудови та роботи подібних пристроїв. Проведено дослідження адекватності аналітичних залежностей, що характеризують фізичні властивості металогідридів, експериментальним даним.The problems of using metal hydrides for the purpose of increasing the safety in the process of hydrogen storage are considered. The principles of construction and operation of such devices are described. The adequacy of the analytical relationships which characterize the physical properties of metal hydrides to experimental data is investigated.Рассмотрены вопросы использования металлогидридов с целью повышения безопасности процессов аккумулирования и хранения водорода. Описаны принципы построения и работы подобных устройств. Проведено исследование адекватности аналитических зависимостей, характеризующих физические свойства металлогидридов, экспериментальным данным

Brazilian Flora 2020: Leveraging the power of a collaborative scientific network

International audienceThe shortage of reliable primary taxonomic data limits the description of biological taxa and the understanding of biodiversity patterns and processes, complicating biogeographical, ecological, and evolutionary studies. This deficit creates a significant taxonomic impediment to biodiversity research and conservation planning. The taxonomic impediment and the biodiversity crisis are widely recognized, highlighting the urgent need for reliable taxonomic data. Over the past decade, numerous countries worldwide have devoted considerable effort to Target 1 of the Global Strategy for Plant Conservation (GSPC), which called for the preparation of a working list of all known plant species by 2010 and an online world Flora by 2020. Brazil is a megadiverse country, home to more of the world's known plant species than any other country. Despite that, Flora Brasiliensis, concluded in 1906, was the last comprehensive treatment of the Brazilian flora. The lack of accurate estimates of the number of species of algae, fungi, and plants occurring in Brazil contributes to the prevailing taxonomic impediment and delays progress towards the GSPC targets. Over the past 12 years, a legion of taxonomists motivated to meet Target 1 of the GSPC, worked together to gather and integrate knowledge on the algal, plant, and fungal diversity of Brazil. Overall, a team of about 980 taxonomists joined efforts in a highly collaborative project that used cybertaxonomy to prepare an updated Flora of Brazil, showing the power of scientific collaboration to reach ambitious goals. This paper presents an overview of the Brazilian Flora 2020 and provides taxonomic and spatial updates on the algae, fungi, and plants found in one of the world's most biodiverse countries. We further identify collection gaps and summarize future goals that extend beyond 2020. Our results show that Brazil is home to 46,975 native species of algae, fungi, and plants, of which 19,669 are endemic to the country. The data compiled to date suggests that the Atlantic Rainforest might be the most diverse Brazilian domain for all plant groups except gymnosperms, which are most diverse in the Amazon. However, scientific knowledge of Brazilian diversity is still unequally distributed, with the Atlantic Rainforest and the Cerrado being the most intensively sampled and studied biomes in the country. In times of “scientific reductionism”, with botanical and mycological sciences suffering pervasive depreciation in recent decades, the first online Flora of Brazil 2020 significantly enhanced the quality and quantity of taxonomic data available for algae, fungi, and plants from Brazil. This project also made all the information freely available online, providing a firm foundation for future research and for the management, conservation, and sustainable use of the Brazilian funga and flora