Electromagnetic technology of increasing the yield of sunflower

The article solves the problem of obtaining scientifically based practical and experimental results of increasing the yield and oil content of sunflower seeds, based on the use of information EMF of EHF range for pre-sowing treatment of seeds. The study of the biophysical effects of the electromagnetic field on sunflower seeds was carried out in order to determine the biotropic parameters of the electromagnetic field, which have a stimulating effect on the seeds. For this, a mathematical model of a sunflower seed in the form of a spheroid was developed. For the calculations, the following frequency range of the exciting wave 25–40 GHz was chosen. The choice of this range is due to two circumstances. First, the relative dielectric constant of sunflower seeds in this range practically does not have frequency dispersion. Secondly, the wavelength is commensurate with the characteristic geometrical sizes of the seeds and, therefore, the intensity of the excited electric field inside the seeds resonantly depends on the frequency. The measurement of chemiluminescence was chosen as the response of the biological object. For registration of extremely weak light fluxes of seeds, the photon counting method was chosen, which made it possible to carry out effective measurements of both spontaneous biochemiluminescence and induced information EMF. As a result of theoretical and experimental studies, a system was developed for measuring the chemiluminescence of seeds. The purpose of the experiment was clarification of the optimal biotropic parameters of the information EMF, which would provide an increase in yield and quality of sunflower seeds when they are irradiated with EMF. The result of field tests showed the advantage of using electromagnetic technology over other methods of pre-sowing treatment of seed

OPTYMALIZACJA ALOKACJI ZASOBÓW, CZASU EKSPOZYCJI I PRĘDKOŚCI OBROTOWEJ JAJ INKUBACYJNYCH

Recently, the laser technology of influencing biological objects in biology, medicine, and veterinary medicine has become widespread in order to activate certain biochemical and physiological processes in the organism. Any influence of electromagnetic radiation (in particular optical emission) requires the exact adherence to the recommended illumination dose to obtain a positive effect on the biological object. The article presents the results of a theoretical study concerning provision of uniform illumination of the egg’s surface, taking into account the location of the laser radiation source and rotating time of the egg.Ostatnio technologia laserowego oddziaływania na obiekty biologiczne w biologii, medycynie i weterynarii stała się powszechna w celu aktywacji pewnych procesów biochemicznych i fizjologicznych w organizmie. Każdy wpływ promieniowania elektromagnetycznego (w szczególności emisji optycznej) wymaga dokładnego przestrzegania zalecanej dawki oświetlenia w celu uzyskania pozytywnego wpływu na obiekt biologiczny. W artykule przedstawiono wyniki badań teoretycznych dotyczących zapewnienia równomiernego oświetlenia powierzchni jaja, biorąc pod uwagę lokalizację źródła promieniowania laserowego i czas obrotu jaja

Modeling with FCA-based model of microstructure evolution in ultra-thin wires of MgCa0.8 alloy during hot drawing

Magnesium alloys are widely applied in medicine due to their high biocompatibility and solubility in human body. For example, they could be applied for surgical threads used for integration of tissue [1,2]. This application requires wires diameter of 0.1 mm and smaller. A new manufacturing process of thin wires, including drawing in heated dies, was developed by Authors [3,4] for biocompatible Mg alloys. An occurrence of recrystallization is the main condition of such a process, which does not use intermediate annealing between the deformations. Because the trial and error method is very expensive and ineffective, a numerical modeling was applied for process design and its optimization. A model of recrystallization of MgCa0.8 alloy in macro scale was developed previously [5]. This model allows for prediction and optimization of drawing process parameters. However, basing on the results of the study [5], we conclude that some microstructural phenomena should be additionally considered in the case of ultra-thin wire drawing in the heated tools. An analysis of the effect of the wire diameter on recrystallization kinetics was an object of interest, especially when wire diameter is comparable with grain size. Study of influence of such a geometrical parameter was fulfilled with use of FCA-based model. The modelling shows that an approaching of the wire diameter to the grain size elongates the recrystallization process with other conditions the same. For example, a decrease of the diameter from 200 to 20 µm extends the recrystallization time by 30%. From the practical point of view, the results detached such a geometrical parameter can be implemented into simpler models of recrystallization, e.g. JMAK-based models

ГЕОМЕТРІЯ ОБЛАСТІ ЕЛІПСОЇДА, ОСВІТЛЮЄМОГО ТОЧКОВИМ ДЖЕРЕЛОМ

На основі теоретичних досліджень встановлено умови опромінення поверхні шкаралупи яйця від точкового джерела когерентного монохроматичного випромінювання

Optymalizacja alokacji zasobów, czasu ekspozycji i prędkości obrotowej jaj inkubacyjnych

Recently, the laser technology of influencing biological objects in biology, medicine, and veterinary medicine has become widespread in order to activate certain biochemical and physiological processes in the organism. Any influence of electromagnetic radiation (in particular optical emission) requires the exact adherence to the recommended illumination dose to obtain a positive effect on the biological object. The article presents the results of a theoretical study concerning provision of uniform illumination of the egg’s surface, taking into account the location of the laser radiation source and rotating time of the egg.Ostatnio technologia laserowego oddziaływania na obiekty biologiczne w biologii, medycynie i weterynarii stała się powszechna w celu aktywacji pewnych procesów biochemicznych i fizjologicznych w organizmie. Każdy wpływ promieniowania elektromagnetycznego (w szczególności emisji optycznej) wymaga dokładnego przestrzegania zalecanej dawki oświetlenia w celu uzyskania pozytywnego wpływu na obiekt biologiczny. W artykule przedstawiono wyniki badań teoretycznych dotyczących zapewnienia równomiernego oświetlenia powierzchni jaja, biorąc pod uwagę lokalizację źródła promieniowania laserowego i czas obrotu jaja

Modeling with FCA-based model of microstructure evolution in ultra-thin wires of MgCa0.8 alloy during hot drawing

Magnesium alloys are widely applied in medicine due to their high biocompatibility and solubility in human body. For example, they could be applied for surgical threads used for integration of tissue [1,2]. This application requires wires diameter of 0.1 mm and smaller. A new manufacturing process of thin wires, including drawing in heated dies, was developed by Authors [3,4] for biocompatible Mg alloys. An occurrence of recrystallization is the main condition of such a process, which does not use intermediate annealing between the deformations. Because the trial and error method is very expensive and ineffective, a numerical modeling was applied for process design and its optimization. A model of recrystallization of MgCa0.8 alloy in macro scale was developed previously [5]. This model allows for prediction and optimization of drawing process parameters. However, basing on the results of the study [5], we conclude that some microstructural phenomena should be additionally considered in the case of ultra-thin wire drawing in the heated tools. An analysis of the effect of the wire diameter on recrystallization kinetics was an object of interest, especially when wire diameter is comparable with grain size. Study of influence of such a geometrical parameter was fulfilled with use of FCA-based model. The modelling shows that an approaching of the wire diameter to the grain size elongates the recrystallization process with other conditions the same. For example, a decrease of the diameter from 200 to 20 µm extends the recrystallization time by 30%. From the practical point of view, the results detached such a geometrical parameter can be implemented into simpler models of recrystallization, e.g. JMAK-based models