251 research outputs found
Adding Value to Tannery Fleshings Part I – Oils and Protein Hydrolysates – Production and Application
The tanning industry generates a high quantity of solid wastes. Therefore, there is a need to create valorization [added value] options for these wastes. The present work had as its main objective creating added value by production of fat and hydrolyzed protein. To this end, fleshings were treated by hydrolysis with regard to the influence of various factors. The best result was found for a temperature of 60°C, 4 hours of hydrolysis, 2% of enzyme and 100% of water, with a fat extraction yield of 93%. The fat obtained through the hydrolysis process was used to produce sulphated oils. The protein hydrolysate was concentrated to about 40% of solids content and used to prepare co-products of protein hydrolysate and glutaraldehyde. Sulphated oils were applied in leather fatliquoring and the different protein hydrolysates were tested in leather retannage. The leather samples obtained were evaluated by physical-mechanical tests and the results were compared to those obtained through a standard process. The results were very satisfactory and, in some cases better than the specified standard. The process of adding value to this waste results in a double advantage for the leather industry, reducing the environmental impact and allowing production of alternative products for leather fatliquoring and retannage.info:eu-repo/semantics/publishedVersio
Biologia de Heliothis virescens (Lepidoptera: Noctuidae) em folhas de soja (Glycine max).
Este estudo teve como objetivo determinar a influencia na biologia de Heliothis virescens do consumo exclusivo de folhas e a capacidade de consumo foliar.Pôster - graduação
Avaliação da variabilidade patogênica de Magnaporthe oryzae em duas séries diferenciadoras.
O objetivo deste trabalho foi quantificar a diversidade e a complexidade dos patótipos de M. oryzae oriundos de sistemas de cultivos de várzeas (irrigado) e de terras altas (sequeiro), utilizando-se a série diferenciadora internacional e a série de linhagens isogênicas
Identificação de fontes de resistência à Magnaporthe oryzae em arroz (Oryza sativa).
Identificar e selecionar doadores de alelos de resistência a Magnaporthe oryzae para a sua utilização em programas de melhoramento de arroz no Brasil.Conpeex 2010
Desenvolvimento de uma coleção nuclear temática de arroz para resistência à brusone.
Este trabalho tem por objetivo desenvolver uma Coleção Nuclear Temática de Arroz para Resistência à brusone com alta diversidade para resistência às raças do patógeno mais comuns em lavouras comerciais do Brasil
Voluntary audit and earnings management: the case of small Portuguese companies
In some small Portuguese companies the audit is required while in others companies the audit is voluntary, and our goal is to verify if the voluntary adoption of audit improves the earnings quality. Starting from a sample of small Portuguese companies for a period from 2007 up to 2014 we analyze if the voluntary adoption of audit reduces the earnings management and therefore increases the earnings quality. The small companies can manipulate the earnings for example for reducing the income taxes to pay or to finance as also reducing the interest rate of those finance. The small companies are an important part of businesses, either in terms of employees and number. The voluntary audit is not very studied subject. The results suggest that the voluntary adoption of audit do not reduce the earnings management, and thus do not increase the earnings quality. These results may be due to the fact these companies are not visible and therefore the audit firms could not allocate as much resources to the audit.info:eu-repo/semantics/acceptedVersio
Avaliação do dano de Heliothis virescens (Lepidoptera: Noctuidae) em algodão (Gossypium hirsutum).
O objetivo deste trabalho foi avaliar dano de Heliothis virencens em algodão a partir do estádio fenológico F7.Pôster - pós-graduação
SWEET-HOME ICT technologies for the assessment of elderly subjects
International audienceFunctional assessments are designed to ascertain a person's ability to perform activities of daily living (ADL) and provide valuable diagnostic as well as care-planning information. Currently, the gold-standard for the assessment of functional ability involves clinical rating scales however scales are often limited in their ability to provide objective and sensitive information. In contrast, information and communication technologies (ICT) may overcome these limitations by capturing more fully the functional, well as behavioural and cognitive disturbances associated with Alzheimer disease (AD)
Avaliação de produtividade de grãos no desenvolvimento de cultivares de arroz irrigado para a região subtropical brasileira.
O objetivo do trabalho foi quantificar os efeitos desse procedimento no desempenho das linhagens selecionadas em gerações avançadas
Deep learning for the classification of quenched jets
An important aspect of the study of Quark-Gluon Plasma (QGP) in ultra-relativistic collisions of heavy ions is the ability to identify, in experimental data, a subset of the jets that were strongly modified by the interaction with the QGP. In this work, we propose studying deep learning techniques for this purpose. Samples of jet events were simulated in vacuum and medium and used to train deep neural networks with the objective of discriminating between medium- and vacuum-like jets. Dedicated Convolutional Neural Networks, Dense Neural Networks and Recurrent Neural Networks were developed and trained, and their performance was studied. Our results show the potential of these techniques for the identification of jet quenching effects induced by the presence of the QGP.Fundação para a Ciência e a Tecnologiainfo:eu-repo/semantics/publishedVersio
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