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Modern biological fertilizers and biological fertilizers components can release nutrients in bioavailable forms in a controlled manner. Quick evaluation of nutrient bioavailability, essential in the evaluation of quality of fertilizers, is possible to use in vitro extraction tests (conventional, microwave, ultrasonic), described in this article. These tests enable not only total content of nutrients...
The article presents the steps followed for the development of the schematic equation by new rules for memory realization in Grafpol method. These steps are presented on the example of coal filling bolt in a power plant boiler.
Bioavailability of nutrients is crucial in obtaining high crop yields and influences the possible pollution of groundwater. The paper presents in vivo methods (seed testing, pot trials, field trials) of the evaluation of micronutrients bioavailability from fertilizers which enable selection of the most efficient way of micronutrient fertilization by determination of bioavailability of micronutrients,...
A method of high-speed camera recording for registration of dynamic crushing was presented. Energy-absorbing structures commonly used in the automotive industry were studied. Registered high-speed camera signal was compared with the signal obtained by integration of the crushing force.
To determine the influence of the magnetic field on the human body, a following experiment was performed. There were recorded 30 ECG signals, 2 for each volunteer: prior to exposure to the field (sample 1) and immediately after exposure (sample 2). The characteristic features were extracted from the recorded signals. The ECG features were determined by measurement and averaging of height of key waves...
In this paper we consider a modified Rectangle Packing Problem where for each rectangle (module) its width and height come from uniform probability distribution between 0 and 1 - U(0,1). We provide a probabilistic analysis of a simple polynomial-time algorithm for Rectangle Packing Problem. At the end a comparison to the computer simulations is presented.
The paper presents a methodology of research on the magnetic field influence on the human body, based on pattern recognition algorithms. A group of 15 volunteers has been exposed to a 50Hz magnetic field of strength 60 A/m. There were recorded 30 ECG signals, 2 for each experiment participant. The first signal was recorded before an exposure to a magnetic field, and the second signal immediately after...
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