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Prospects for the use of microwave energy in grain crop seeding

100%

Kipriyanov F. A. , Savinykh P. A. , Isupov A. Y. , Plotnikova Y. A. , Medvedeva N. A. , Belozerova S. V.

tom no. 49

74--78

This study looks at determining the main trends in the application of microwaves on plants in agricultural production in the processing of grain material, it provides examples of their effectiveness and an overview of the use of microwaves on plants available on the Russian market. Additionally, the research studied the experience and developments of leading scientists in the field of microwave radiation. Analysis of the available sources provided information on the positive effect of microwave radiation in the processing of crops. The use of microwaves on plants during drying destroys pathogens and bacteria, in particular, microwave processing of red lentils reduces grey mould damage by up to 30%. Positive results are also noted in the microwave processing of other crops, providing an increase in germination capacity of up to 7% and yield growth of up to 6%. The microwave plant market in Russia is represented mainly by dryers, and the use of microwaves on plants combining several functions of drying, disinfection, and pre-sowing stimulation.

The Effects of Microwave-Assisted Leaching on the Treatment of Electric Arc Furnace Dusts (EAFD)

100%

Laubertova M. , Havlik T. , Parilak L. , Derin B. , Trpcevska J. , Laubertova M. , Havlik T. , Parilak L. , Derin B. , Trpcevska J.

nr 1

Perspectives of using microwave heating of petroleum products in the tank

86%

Boshkova I. L. , Volgusheva N. V. , Titlov O. S. , Altman E. I. , Mukminov I. I.

tom Vol. 5, nr 4

150--156

The problem of optimizing the heating of petroleum products when draining from railway tanks using microwave heating is considered. It is established that microwave heating can significantly simplify the technological scheme, eliminating all processes and apparatuses associated with the preparation of the coolant. It is determined that currently existing patents and technical solutions proposed for the use of microwave heating for heating petroleum products assume that microwave energy falls on the free surface of the liquid. It is argued that the disadvantage of such schemes is a significant unevenness of heating due to the fact that microwave energy quickly fades out when moving deep into the tank. It is noted that when heated from the surface of the liquid in the tank, the distance from the source to the drain hole is quite large, as a result of which it is impossible to effectively use microwave heating. A method for solving this problem is proposed, which consists in installing a microwave device inside a hollow pipe, which is directly connected to the upper hatch in preparation for pumping and is immersed in the oil product to a depth that correlates with the depth of penetration of the microwave field in a particular product. The depth of penetration of microwave energy into the oil product under study - fuel oil-is estimated, on the basis of which it is recommended to set the distance from the emitter to the drain hole. It is argued that it is advisable to model microwave heating on the basis of the differential equation of thermal conductivity, taking into account internal heat sources. A mathematical model describing the heating of a volume of highly viscous petroleum products as a process of thermal conductivity in an unlimited array under the action of microwave radiation is presented. On the example of fuel oil, calculations were made using the finite difference method, which showed the temperature distribution in the array at different points in time.

Prospects for the use of microwave energy in grain crop seeding

86%

Kipriyanov F. A. , Savinykh P. A. , Isupov A. Y. , Plotnikova Y. A. , Medvedeva N. A. , Belozerova S. V. , Kipriyanov F. A. , Savinykh P. A. , Isupov A. Y. , Plotnikova Y. A. , Medvedeva N. A. , Belozerova S. V.

2021

Investigation of influence of microwave energy on cleavage of S-S and C-S bonds by azide ions

86%

Kurzawa J. , Stachowiak S.

tom Vol. 46, No. 6

907-910

The influence of microwave energy on the rate of cleavage of-C-S- and -S-S- bonds by azide ions was investigated. It was found that microwaves do not accelerate the split of -C-S- bond, whereas the cleavage of-S-S- bond takes place faster but the reproducibility of this reaction is very poor and microwave technique is not recommended for quantitative determination.

Badano wpływ energii mikrofalowej na szybkość rozszczepienia wiązania -C-S-i -S-S- przez jony azydkowe. Stwierdzono, że mikrofale nie przyspieszają zerwania wiązania -C-S-, natomiast rozszczepienie wiązania -S-S- zachodzi szybciej, jednak niepowtarzalność procesu wyklucza możliwość stosowania tej techniki w analizie ilościowej.