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991.
992.
Physico‐chemical,antioxidant, and anti‐inflammatory properties and stability of hawthorn (Crataegus monogyna Jacq.) procyanidins microcapsules with inulin and maltodextrin 下载免费PDF全文
993.
This study focuses on a CFD modelling of biomass-derived syngas co-firing with coal in an older mid-sized PC-fired boiler of type OP-230 with low-emission burners on the front wall. The simulations were performed to determine whether the boiler can be retrofitted for the fulfilment of the prospective environmental protection regulations relating to levels of NOX emissions. The improvement of the air staging via the dual-fuel technique was based on the indirect co-firing technology. The impact of two arrangements of dedicated syngas nozzles (below and above the existing coal burners), two syngas compositions and two heat replacements (5% and 15%) on the course of thermal processes in a furnace was tested. The reductions in NOX emissions were predicted relative to the baseline when only coal is combusted. The highest reduction of about 38% was achieved with the syngas nozzles below the existing coal burners and 15% heat replacement. This arrangement of nozzles offers the residence time sufficient to co-fire coal with waste derived syngas. A lower reduction in NOX emissions was obtained with the nozzles above the burners as the enlargement of local fuel rich zone near syngas injection becomes significant for 15% heat replacement. Results provide for the decreasing impact of methane content along with the increase of syngas heat input. The avoided CO2 emissions through the syngas indirect co-firing with coal in the boiler are linear function of heat replacements. 相似文献
994.
Effects of electrical stimulation applied in combination with shock chilling method on selected quality attributes of beef from young bulls,heifers, and cows carcasses 下载免费PDF全文
995.
Elżbieta Rytel Agnieszka Tajner-Czopek Agnieszka Kita Anna Sokół-Łętowska Alicja Z. Kucharska Wiesław Wojciechowski 《International Journal of Food Science & Technology》2020,55(6):2335-2343
The colour-fleshed potatoes represent a good raw material for the extraction of juices with a high content of biologically active compounds and a high antioxidant activity. The blue-fleshed potatoes turned out to be a rich source of total polyphenols, as they had approximately 3.5 times higher content of identified anthocyanidins. Regardless of anthocyanin composition, all juices made of colour-fleshed potatoes were highly stable. Both, high temperature, exposure time to these temperatures, and medium pH had no significant effect on changes in total polyphenols content of potato juices. The juices examined, especially these made of blue-fleshed potatoes, demonstrated a higher ABTS+ stability during their heating than during pH changes. In addition, a higher antioxidant activity of juices was determined at neutral and alkaline than at acidic pH value of the medium. 相似文献
996.
Fiołek Aleksandra Zimowski Sławomir Kopia Agnieszka Sitarz Maciej Moskalewicz Tomasz 《Metallurgical and Materials Transactions A》2020,51(9):4786-4798
Metallurgical and Materials Transactions A - In this work, polytetrafluoroethylene/polyetheretherketone (PTFE/PEEK 708) coatings were fabricated by electrophoretic deposition (EPD) and heat... 相似文献
997.
Content of anthocyanins and glycoalkaloids in blue‐fleshed potatoes and changes in the content of α‐solanine and α‐chaconine during manufacture of fried and dried products 下载免费PDF全文
Elżbieta Rytel Agnieszka Tajner‐Czopek Agnieszka Kita Alicja Z. Kucharska Anna Sokół‐Łętowska Karel Hamouz 《International Journal of Food Science & Technology》2018,53(3):719-727
In the last ten or so years, potatoes with purple or blue‐flesh and derivative products, for example chips, have appeared on the European markets. The interest in this raw material and these products is increasing among both producers and consumers searching for novel and attractive choices. The anthocyanin content of the analysed potato varieties differed; a higher content of these pigments was determined in Blaue Elise var. potatoes. In blue‐flesh varieties, the prevailing anthocyanins were acylated glycosides: petunidin and malvidin. The production process of French fries, chips and puree caused a decrease in the content of glycoalkaloids in semi‐products and finished products, compared to the raw material. The greatest losses of α‐chaconine and α‐solanine were observed after tuber peeling (ca. 70%) and after frying (ca. 90%). French fries contained 3%, chips 16% and puree 17% of the initial amount of total glycoalkaloids. The losses of α‐chaconine and α‐solanine in the analysed semi‐products and finished products were at the same level, regardless of the processing technology applied. 相似文献
998.
Multimedia Tools and Applications - Multimodal data is being used more widely for human action recognition nowadays due to the progress of machine learning methods and the development of new types... 相似文献
999.
Purchase Aaron R. Pałasz Tadeusz Sun Hongwei Sharp Jonathan C. Tomanek Boguslaw 《Magma (New York, N.Y.)》2019,32(6):679-692
Magnetic Resonance Materials in Physics, Biology and Medicine - A radiofrequency (RF) power amplifier is an essential component of any magnetic resonance imaging (MRI) system. Unfortunately, no... 相似文献
1000.