Construction of Reliability Models for Advanced Digital Systems

Tato práce se zabývá problematikou spolehlivosti systémů. Nejprve je zde diskutován samotný pojem spolehlivosti a její ukazatele, kterými spolehlivost můžeme konkrétně vyjadřovat. V~další kapitole jsou popsány možné spolehlivostní modely pro jednoduché a složitější systémy. Dále jsou zde popsány základní postupy pro tvorbu spolehlivostních modelů. Čtvrtá kapitola je věnována velmi důležitým markovským modelům. Markovské modely jsou velmi silným a komplexním nástrojem pro výpočet spolehlivosti složitých systému. Je zde vysvětlena vhodnost jejich použití pro obnovované systémy, které mohou obsahovat absorpční stavy. Další kapitola popisuje zálohu systému. Diskutuje výhody a nevýhody statické, dynamické a hybridní zálohy. Také je zde popsán vliv různé úrovně zatížení na životnost součástek. Šestá kapitola je věnována implementaci, popisu aplikace a vstupního souboru ve formátu XML. Jsou zde také diskutovány naměřené výsledky získané při experimentálních výpočtech.This thesis deals with the systems reliability. At First, there is discussed the concept of reliability itself and its indicators, which can specifically express reliability. The second chapter describes the different kinds of reliability models for simple and complex systems. It further describes the basic methods for construction of reliability models. The fourth chapter is devoted to a very important Markov models. Markov models are very powerful and complex model for calculating the reliability of advanced systems. Their suitability is explained here for recovered systems, which may contain absorption states. The next chapter describes the standby redundancy. Discusses the advantages and disadvantages of static, dynamic and hybrid standby. There is described the influence of different load levels on the service life. The sixth chapter is devoted to the implementation, description of the application and description of the input file in XML format. There are discussed the results obtaining in experimental calculations.

Organic Agriculture in Europe: Current Statistics

In this presentation the 2019 data on organic agriculture in Europe are shown

Organic Farming and Market Development in Europe and the European Union

In 2021, the organic sector’s development in Europe was characterised by continued growth in all key indicators. However, the organic market did not grow as fast as in 2020, when it increased double-digit due to the pandemic, whereas the organic area increased at a similar pace as in 2020. Both the organic farmland and market will need to grow at a faster rate to reach the 25 percent organic area share goal by 2030, as set out for the European Union by the European Commission (2020) in its Farm to Fork strategy

FRAM telescopes and their measurements of aerosol content at the Pierre Auger Observatory and at future sites of the Cherenkov Telescope Array

A FRAM (F/(Ph)otometric Robotic Atmospheric Monitor) telescope is a system of a robotic mount, a large-format CCD camera and a fast telephoto lens that can be used for atmospheric monitoring at any site when information about the atmospheric transparency is required with high spatial or temporal resolution and where continuous use of laser-based methods for this purpose would interfere with other observations. The original FRAM has been operated at the Pierre Auger Observatory in Argentina for more than a decade, while three more FRAMs are foreseen to be used by the Cherenkov Telescope Array (CTA). The CTA FRAMs are being deployed ahead of time to characterize the properties of the sites prior to the operation of the CTA telescopes; one FRAM has been running on the planned future CTA site in Chile for a year while two others are expected to become operational before the end of 2018. We report on the hardware and current status of operation and/or deployment of all the FRAM instruments in question as well as on some of the preliminary results of integral aerosol measurements by the FRAMs in Argentina and ChileComment: Proceedings of AtmoHEAD 201

Organic Agriculture in Africa. Statistical Yearbook 2023

Data on organic agriculture in Africa showing the sector’s relevance are scarce, even though much needed. Data are essential for policymakers and donors to monitor and evaluate policy measures on organic production. Furthermore, they are necessary by market actors for informed decision-making. To make existing data on organic farming in Africa better accessible for African stakeholders, FiBL, based on its annual data collection on organic agriculture worldwide (Willer et al. 2023), provides several tools showing the current status of organic agriculture in Africa as a whole, by its five regions and by country

Producción ecológica y cómo alcanzar los objetivos de “De la Granja a la Mesa”

En mayo de 2020, la Comisión Europea publicó la estrategia Farm to Fork (De la Granja a la Mesa) como un elemento clave del Pacto Verde Europeo (la nueva estrategia de crecimiento de la UE para 2050)

Producció ecològica i com assolir els objectius de “De la Granja a la Taula”

Al maig de 2020, la Comissió Europea va publicar l’estratègia Farm to Fork (De la Granja a la Taula) com un element clau del Pacte Verd Europeu (la nova estratègia de creixement de la UE per al 2050)

Farm to Fork: the role of organic and digital training activities to reach the objectives

In May 2020, the European Commission published the Farm to Fork strategy as a key element of the European Green Deal (new EU growth strategy for 2050)