Authors:F. Vučajnk, S. Trdan, G. Leskošek, I.J. Košir, A. Sreš, D. Kocjan Ačko, and M. Vidrih
In 2014 and 2015, we studied the effect of fungicide spraying with 11 different nozzles on the quality and quantity of head and leaf fungicide deposit, the percentage of Fusarium head blight (FHB) incidence, FHB index, the DON content, yield and grain quality parameters. The best quality and quantity of fungicide deposit on the front and rear head sides was achieved with the TeeJet Turbo FloodJet TF VP2 nozzle (FLOOD) and the Albuz AVI-TWIN 110-03 nozzle (AVI). In comparison with the majority of treatments, the FHB incidence and the FHB index was the highest on the unsprayed control. The FHB index was higher using the Lechler IDK 120-03 nozzle (IDK) than with the other nozzle types. In all the treatments, the DON content in the grain was less than 50 μg/kg. At this very low level of infection this is not surprising. The grain yield was the smallest on the unsprayed control. Better fungicide coverage of wheat heads with the FLOOD and AVI nozzles did not result in a statistically higher yield or better grain quality parameters. Negative correlations were confirmed between yield and variables as DON content, FHB incidence and FHB index and also between falling number and variables as fungicide coverage, FHB incidence and FHB index. Positive correlations were determined between DON content and FHB incidence, between hectolitre weight and variables as spray deposit and coverage and between protein content and variables as spray deposit and coverage.
Authors:Rafał Janus, Piotr Natkański, Anna Wach, Marek Drozdek, Zofia Piwowarska, Pegie Cool, and Piotr Kuśtrowski
In the present study we have demonstrated highly effective adsorbents of VOCs obtained by thermal decomposition of PAN deposited on SBA-15 type mesoporous silica developing the available surface of carbonaceous species. This
The aerosols adhering to one year old spruce needles are investigated as for the mass deposited and as for the chemical composition. The method for the isolation of the material is presented. 33 elements are determined by neutron activation analysis. Precision, accuracy, sampling error and variation over 14 sites at the interior of woods are discussed. Chemical composition is compared to local topsoil and to local aerosols collected on filters.
Authors:V. Sydorchuk, O. Makota, S. Khalameida, L. Bulgakova, J. Skubiszewska-Zięba, R. Leboda, and V. Zazhigalov
other processes. Therefore, the investigation of milling influence on catalytic properties of bulk and deposited MoO 3 and V 2 O 5 in epoxidation reaction is aim of presented work.
Authors:Sergei N. Danilchenko, Aleksei N. Kalinkevich, Roman A. Moskalenko, Vladimir N. Kuznetsov, Aleksandr V. Kochenko, Evgenia V. Husak, Vadim V. Starikov, Fuyan Liu, Junhu Meng, and Jinjun Lü
Recent investigations [ 1 , 2 ] and earlier works [ 3 , 4 ] have shown that the mineral of cardiovascular pathological deposits consists of poorly crystalline carbonate-substituted apatite. However, the chemical
Authors:Máté Zsigmond Leskó, Richárd Zoltán Papp, Boglárka Anna Topa, Ferenc Kristály, Tamás Vigh, and Norbert Zajzon
The sediment-hosted Úrkút manganese ore deposit is the largest manganese accumulation in Hungary. Mining activity lasted almost 100 years (1917–2017). The area was continuously under scientific investigation
The self-hardening activity of fly ashes was investigated looking for the possibility of their chemical reactions with water without additives. A method had to be developed for separation of the structural water from the adsorbed or free one. The decomposition of the chemically bound water was measured by thermogravimetry. The‘I’ dimensionless number proved to be applicable for the quantitative characterisation of the measured data with more DTG peaks. The examined reaction depends on the chemical composition and the physical structure of the fly ashes and the time of interaction with water. The SO3 content seems important, but the characteristics of the formed compounds differ deeply from the CaSO4·2H2O. The observed and examined reaction is an important factor of the self-hardening process of fly ash deposits.