Search results for "Lag"
showing 10 items of 3124 documents
The Cereal Market and the Role of Fermentation in Cereal-Based Food Production in Africa
2014
Cereals represent the main crop in Africa (45% of arable land) and make an important contribution to the human diet in this continent. Cereals for humans are not consumed raw. Fermentation technology is widely used in Africa to transform cereals into edible products as well as to preserve and enhance the nutritional and safety aspects of cereals. In general, in Africa, this process is not controlled and is devoid of good manufacturing practices (GMPs). Spoilage and/or pathogenic microorganisms may compromise the final quality when the fermentation is not controlled. This article focuses on the role that the fermentation process could play in creating safe food conditions in Africa. Taking i…
Combining reformulation, active packaging and non-thermal post-packaging decontamination technologies to increase the microbiological quality and saf…
2018
Abstract Background Cooked ready-to-eat (RTE) meat products are subjected to contamination of spoilage microorganisms such as lactic acid bacteria and pathogens such as Listeria monocytogenes. These microorganisms contaminate cooked RTE meat products after the cooking step and may further grow during shelf-life potentially leading to spoilage or foodborne diseases, respectively. In the current context of salt, fat and chemical preservatives reduction in meat products formulations, a combined strategy that considers the development of more robust formulations, active packaging and the use of non-thermal post-packaging decontamination strategies seems required to ensure shelf-stable and safe …
Selected lactic acid bacteria as a hurdle to the microbial spoilage of cheese: Application on a traditional raw ewes' milk cheese
2013
To evaluate the efficacy of lactic acid bacteria (LAB) to improve the hygienic safety of a traditional raw milk cheese, the raw ewes’ milk protected denomination of origin (PDO) Pecorino Siciliano cheese was used as a model system. Different Pecorino Siciliano curds and cheeses were used as sources of autochthonous LAB subsequently used as starter and non-starter LAB. These were screened for their acidification capacity and autolysis. Starter LAB showing the best performance were genotypically differentiated and identified: two strains of Lactococcus lactis subsp. lactis were selected. From the nonstarter LAB, Enterococcus faecalis, Lactococcus garvieae and Streptococcus macedonicus strains…
La nourriture dans la prose des camps: l'example du Pain de Chalamov
2015
The article provides an analysis of representations of food in Gulag literature and then focuses on the image of bread in Shalamov's Kolyma Tales
Forage mixture productivity and silage quality from a grass/legume intercrop in a semiarid Mediterranean environment
2023
In semiarid environments of the Mediterranean region, intercropping is a sustainable agricultural system of long standing. In this area, the pea (Pisum sativum L.) is one of the most commonly grown legume crops. Little information is available on the quality of silages to be obtained from forage mixtures of pea intercropped with cereals or annual grasses. In this study, two experiments were conducted over the course of two growing seasons in Sicily (Italy) with the aim to determine the biomass production of forage crop mixtures and assess, only in the second experiment, the silage quality of grass and legumes. Four cereals and one annual grass species were grown in pure stand and in mixture…
Motion and force analysis of slow-speed multi-trailer systems
2018
Comparing with the tractor-trailer systems for the road haulage, which must cope with some typical undesired trends, such as high-speed instability, over- or under-steering and off-tracking, the multi-trailer systems for the transport of luggage in the airports or in the railway stations, or for the transfer of goods in the warehouses, run at quite low speeds, but must manage to steer clear of the many obstacles encountered along their path. This type of vehicle is not subject to tire cornering phenomena, because the speed is just low and the wheels are generally stiff. Hence, the vehicle movement is in practice ruled by the non-holonomic rolling constraint of the wheels and by the steerin…
La ética como coartada / 1
2007
La letteratura italiana racconta la caduta del muro di Berlino
2020
The fall of the wall is an event that sets a date and raises a symbolic watershed that separates the before from the after. The essay analyzes the Italian literary texts that were directly confronted with the events of 1989 by reviewing a period of time that goes from the day after the fall of the wall to the present day. From Fortini to Volponi, from Giudici to Arbasino, up to Lagioia, Affinati and Camilleri: for these writers talking about the Berlin Wall means reflecting on the crisis of ideologies, on the contradictions of history, on the relationship between literature and reality.
Tři pohledy do života Boženy Němcové (Miloš Urban, František Novotný, Lenka Lagronová)
2018
The paper employs Aby Warburg’s concept of Nachleben to analyse Božena Němcova’s figure. It concentrates on her images created after 1989 which constitute a sign of breaking the cultural taboo. In Urban’s action novel, she is demythologized in the intermezzi that are ostensibly unrelated to the actual plot. Novotný’s figuratively and literally “undresses” the writer, whereas Lagronová demonstrates the woman’s tragedy as a victim of other people’s desires.
Supplementary frequency regulation in non-synchronous AC system connected via MTDC
2019
Abstract In smart grid power system operation, frequency regulation is one of the most critical tasks towards power balance in the grid. This paper presents the schemes for improvement in operation of secondary loop of turbine-generator unit for frequency regulation in non-synchronous AC areas connected via multi-terminal direct current (MTDC) network. Two schemes have been discussed; (i) voltage droop based lead/lag compensator and (ii) DC power modulation at converter terminal depending upon frequency deviation from each AC area. In the first scheme, droop design based on lead/lag compensator using DC voltage deviation is introduced as supplementary signal at turbine-generator unit in eac…