Snapshot Hyperspectral Imaging for Field Data Acquisition in Agriculture (in Raspberry Plantation)

A snapshot spectral camera with more than 100 spectral channels was used and tested. A native snapshot imaging spectrometer captures all spectra and the entire image at the same time without any time delay. It enables this imaging system to capture motion pictures and producing hyperspectral videos. In our horticulture study a snapshot camera was applied to spectrally document, map and characterize a raspberry plantation under differently coloured shade nets to analyse usability, flexibility and to record spectro-phenological parameters. Leading raspberry producers are located in Eastern Europe and contribute at least 80% of the world's raspberry production (FAOSTAT, 2016). Due to agricultural climate change scenarios raspberry plantations are at risk because evapotranspiration will be challenged by solar radiation and temperature changes. We concluded that spectral field data acquisition and length of data evaluation could be significantly reduced by snapshot spectral imaging

Virtual Mirror

Tento dokument obsahuje výsledky zkoumání v rámci Bakalářské práce na ČVUT. V této práci je popsána analýza možných technologií k sledování lidské postavy, převodu těchto informací do počítače a následné zobrazení v programu. Také se zde budeme zabývat možnostmi fyzikální simulace oblečení pro Unity 3D.This document contains results of my research within my Bachelor’s Thesis at Czech Technical University. This work describes the analysis of possible technologies for monitoring the human figure, transferring this information to a computer and then displaying in the program. We will also deal with the possibilities of physical simulation of clothing for Unity 3D

Determination of mechanical and energetic properties of Reed Canary Grass pellets production

Authors of the article are evaluating characteristics of half‑operational experimental agro‑pellets production. The problems of production and use of agro‑pellets is the current issue. It’s a way to apply part of the agricultural production in the market. It is also an opportunity to replace part of the fossil fuels and increase the share of renewables. But the use of phytomass is bringing many problems. First, it is important that the manufactured products will be succeeded on the raw materials market. Agro‑pellets therefore must have characteristics that support their competitiveness and allow their classification. The advantage comes if the agro‑pellets properties are comparable with traditional fuels and their combustion is possible in standard boilers. This objective can be achieved in several ways. The production of mixed fuels is one from the possible ways. Phytomass is pressed into pellet form in a mixture with other raw materials, usually based on powder coal or wood. The advantage of mixed fuels production is the ability to influence the final properties according to market demands and requirements of legislation. The research activity results, which are given in the text, were aimed at the possibility of Reed Canary Grass applying as part of a mixed fuel in various concentrations. The pellets are based on Reed Canary Grass and wooden biomass in the form of saw‑dust. Addition of sawdust has negative influence on the presser productivity, but has a positive impact on mechanical and burning qualities of final products. Mechanical durability values of pellets were increased by 4.8 and 3.0% with the sawdust addition. The specific weight of pellets was increased even by 31.9%. Hand in hand with the raising amount of sawdust in pellets, the decline of CO emissions in exhaust gas was provenVytauto Didžiojo universitetasŽemės ūkio akademij

Development and prospects of aluminium metallurgy in Hungary

26.00; Translated from Hungarian (Banyasz. Kohasz. Lapok, Kohasz. 1986 v. 119(6) p. 183-188)SIGLEAvailable from British Library Document Supply Centre- DSC:9022.0602(BISI-NF-Trans--252)T / BLDSC - British Library Document Supply CentreGBUnited Kingdo