Academic literature on the topic 'Decorticator'

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Journal articles on the topic "Decorticator"

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HIDAYAT, TATANG, and RISFAHERI RISFAHERI. "PENGARUH DIAMETER PIRINGAN DAN ELASTISITAS KARET PENGUPAS TERHADAP KINERJA ALAT PENGUPAS LADA TIPE PIRINGAN." Jurnal Penelitian Tanaman Industri 7, no. 1 (July 15, 2020): 11. http://dx.doi.org/10.21082/jlittri.v7n1.2001.11-17.

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To produce while pepper using traditional method, the ripe berries are soaked in a river or a pond for 10-14 days prior to decorticating. To improve the traditional method. Research Institute for Spice and Medicinal Crops has designed pepper decorticator to support the white pepper processing. This decorticator has a good function, hut its performance still need to be improved, as it still produces high percentage of white pepper damage. This experiment was aimed to at improving (he performance of the pepper decorticator. The experiment was conducted from July to Ocktobcr 1999 and divided into two steps i.e. preliminary and main experiment. The treatments applied on Ihe main experiment were (I) disc diameter (18, 20, and 22 cm) and (2) rubber elasticity (5.34, 7.74, 9.79, and 15.02 N/mm). The experiment was designed as a completely randomized, arranged factorially in three replications. The pepper variety used for the experiment was Lampung Daun Lebar. The disc distance of pepper decorticator in this experiment was set at 3.5 cm based on the preliminary experiment. Results showed that the optimal disc diameter and nibber elasticity was 20 cm and 7.74 N/mm respectively. Decorticator performance on the optimal condition were : decorticated pepper 97.25%, white pepper damage as pepper defect 2.46% and as broken pepper 1.98% respectively and the capacity of decorticator was 42.27 kg/hours. In general, the quality of while pepper produced met the National Standard of Indonesia.
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Jekayinfa, S. O., and M. O. Durowoju. "Performance evaluation of a mango stone decorticator." Nutrition & Food Science 35, no. 2 (April 1, 2005): 118–20. http://dx.doi.org/10.1108/00346650510585903.

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PurposeIn Nigeria, the mango fruits consumption rate is high during its peak period and this has always resulted in environmental sanitation problem because the mango seeds are thrown to the surroundings immediately the fruits are eaten. Finding more useful application of the kernel would be a way to reduce the environmental pollution. Mechanical decortication of the leathery mango stone remains the only viable option that can support any prospected commercial uses of the mango kernel.Design/methodology/approachThe decorticator consists of a hopper, a decorticating chamber, spiked shaft, screen shaker and discharge spout. The machine performance was evaluated in terms of decorticating efficiency, mechanical damage and sieve loss.FindingsResults of the evaluation show that the optimum performance of the decorticator was at a speed of 900rpm, feed rate of 250kg/h and power requirement of 2.50kW.Originality/valueMango stones are useful as substitute for maize in finishing broiler diets. The kernel is also used for medicinal purposes in moderation of anti‐bacterial and anti‐fungal activities. Therefore, the designed mango stone decorticator enhances the complete mechanization processes of mango products.
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Liu, Shao Da, and Li Xue Zhu. "Research on the Key Parameter of the Core Part on the Equipment for Peeling Off the Gingko’s Shell." Advanced Materials Research 197-198 (February 2011): 1412–15. http://dx.doi.org/10.4028/www.scientific.net/amr.197-198.1412.

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This paper takes decorticator's core part (Illustration of roller and shutter equipment) as the object of study, through analyzing the principle of the gingko decorticator for peeling off the shell, and choosing the roller's material and its superficial shape, we calculate the action of gingko’s entrance to the gap between roller and shutter, and elaborate the two influences on the effect of peeling off the shell, the gap between roller and shutter and the speed of peeling. The decorticator which makes through this research may achieve good results that the husking yield is bigger than 85%, percentages of damage is smaller than 10%, the broken kernel rate is smaller than 7%. And it provides the theory basis for the improvement design and use of the next generation installment for peeling the shell.
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Weisdiyanti, Nurhikmah, Kiki Santoso, Riri Syavira, Liza Karina Octovyanda Pohan, Rionaldo Tamba, and Rita Juliani. "DESIGN OF A PINEAPPLE LEAF FIBER DECORTICATOR MACHINE." Jurnal Geliga Sains: Jurnal Pendidikan Fisika 7, no. 1 (July 25, 2019): 18. http://dx.doi.org/10.31258/jgs.7.1.18-23.

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The manufacture of pineapple leaf fiber decorticator machines has been made in the village of Onan RungguIII, Sipahutar District, North Tapanuli Regency. Machine making aims to help pineapple farmers toovercome the problem of waste and pineapple. The method used starts from feasibility studies, designingmachines, collecting and purchasing tools and materials, evaluating results and testing tools. Resultsobtained by the pineapple leaf fiber decorticator machine 0,12 kg/hour obtained through two stages ofgrinding namely grinder 1 and grinder 2. The final results obtained from the decorticator machine ofpineapple leaf fiber are pineapple leaf fibers that can be used to make raw materials for textile products.
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KUMAR, G. D. VASANTHA, and K. RAJESH. "Performance evaluation of a pongamia decorticator." INTERNATIONAL JOURNAL OF AGRICULTURAL ENGINEERING 8, no. 1 (April 15, 2015): 66–69. http://dx.doi.org/10.15740/has/ijae/8.1/66-69.

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S. V. Jogdand, Arundas, R. K. Naik V. M. Victor, and Sambhu Singh. "Development of Pedal Operated Groundnut Decorticator." International Journal of Current Microbiology and Applied Sciences 10, no. 2 (February 10, 2021): 3352–58. http://dx.doi.org/10.20546/ijcmas.2021.1002.368.

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Haris, Abdul, Hermanto, Misdiyanto, and Yoyok. "Sosialisasi Dan Pelatihan Proses Pembuatan Serat Abaca Dari Pohon Pisang Abaca Di Kabupaten Kepulauan Talaud Propinsi Sulawesi Utara." Dinamisia : Jurnal Pengabdian Kepada Masyarakat 4, no. 3 (August 31, 2020): 440–46. http://dx.doi.org/10.31849/dinamisia.v4i3.4737.

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Abaca banana trees thrive in the Talaud Islands, North Sulawesi Province, which is the outermost archipelago and is close to the Philippines. In this community service, socialization and training have been held on the processing of Abaca banana trees using a shaved machine (decorticator) into Abaca fiber. The decorticator machine made itself to be taken to the Talaud Islands for training for the people of South Essang District. Socialization to the leaders of Indigenous Peoples and Government expressed their supportive attitude by holding this socialization. And next is the fiber making training that is attended by some people of South Essang District, people can do fiber making and the results after the drying process are in accordance with the quality with a moisture content of less than 30%. Furthermore, will to the use of Abaca fiber will be studied further.
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Kate, A. E., U. C. Lohani, and N. C. Shahi. "Development and testing of apricot (Prunus armeniaca . L) pit decorticator." Journal of Food Process Engineering 41, no. 5 (April 2, 2018): e12690. http://dx.doi.org/10.1111/jfpe.12690.

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Amosun, S. T., E. O. Anisiji, O. D. Samuel, E. Emagbetere, O. S. I. Fayomi, T. O. Ogunleye, S. E. Azike, and P. O. Kaffo. "Design and fabrication of an electrical-powered roasted groundnut decorticator." IOP Conference Series: Materials Science and Engineering 1107, no. 1 (April 1, 2021): 012221. http://dx.doi.org/10.1088/1757-899x/1107/1/012221.

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N. Gitau, A., P. Mboya, B. N. K. Njoroge, and M. Mburu. "Optimizing the Performance of a Manually Operated Groundnut (Arachis hypogaea) Decorticator." Open Journal of Optimization 02, no. 01 (2013): 26–32. http://dx.doi.org/10.4236/ojop.2013.21004.

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Dissertations / Theses on the topic "Decorticator"

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Aquino, Marcos Silva de. "Desenvolvimento de uma desfribadeira para obten??o da fibra da folha do abacaxi." Universidade Federal do Rio Grande do Norte, 2006. http://repositorio.ufrn.br:8080/jspui/handle/123456789/15664.

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Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior
In 1998 the first decorticator was developed in the Textile Engineering Laboratory and patented for the purpose of extracting fibres from pineapple leaves, with the financial help from CNPq and BNB. The objective of the present work was to develop an automatic decorticator different from the first one with a semiautomatic system of decortication with automatic feeding of the leaves and collection of the extracted fibres. The system is started through a command system that passes information to two engines, one for starting the beater cylinder and the other for the feeding of the leaves as well as the extraction of the decorticated fibres automatically. This in turn introduces the leaves between a knife and a beater cylinder with twenty blades (the previous one had only 8 blades). These blades are supported by equidistant flanges with a central transmission axis that would help in increasing the number of beatings of the leaves. In the present system the operator has to place the leaves on the rotating endless feeding belt and collect the extracted leaves that are being carried out through another endless belt. The pulp resulted form the extraction is collected in a tray through a collector. The feeding of the leaves as well as the extraction of the fibres is controlled automatically by varying the velocity of the cylinders. The semi-automatic decorticator basically composed of a chassis made out of iron bars (profile L) with 200cm length, 91 cm of height 68 cm of width. The decorticator weighs around 300Kg. It was observed that the increase in the number of blades from 8 to twenty in the beater cylinder reduced the turbulence inside the decorticator, which helped to improve the removal of the fibres without any problems as well as the quality of the fibres. From the studies carried out, from each leaf 2,8 to 4,5% of fibres can be extracted. This gives around 4 to 5 tons of fibres per hectare, which is more than that of cotton production per hectare. This quantity with no doubt could generate jobs to the people not only on the production of the fibres but also on their application in different areas
No ano de 1998 foi patenteada uma desfibradeira que foi desenvolvida no laborat?rio de Engenharia T?xtil da UFRN, com objetivo de desfibrar a folha do abacaxi, com apoio do CNPq e BNB. O presente trabalho objetiva desenvolver uma desfibradeira automatizada com a mesma finalidade e se buscou a fabrica??o de uma nova desfibradeira com sistema semi-autom?tico. A desfibradeira ? acionada atrav?s de um quadro de comando, que passa informa??es para dois motores, um para acionamento do cilindro batedor e outro para os movimentos de alimenta??o das folhas e sa?da das fibras. A desfibradeira ? composta de um sistema de alimenta??o autom?tico, atrav?s de uma esteira sem fim, que desloca as folhas at? os cilindros alimentadores, que introduz as mesmas, entre uma espera (faca) e um batedor rotativo de vinte palhetas (desfibradeira anterior s? tinha 8 palhetas). Estas palhetas s?o apoiadas em tr?s flanges eq?idistantes com um eixo central de transmiss?o possibilitando um maior numero de batidas na folha. Portanto o operador tem a fun??o de colocar as folhas na esteira de alimenta??o e retirar as fibras que foram desfibradas, que est?o na esteira de sa?da. A qualidade das fibras extra?das pode ser melhorada atrav?s do controle da velocidade de entrada das folhas bem como a velocidade de cilindro batedor. Al?m disso, h? sistema de remo??o de polpa numa bandeja separadamente. A desfibradeira foi confeccionada com um chassi em cantoneiras (perfis L ) tendo com dimens?es b?sicas de comprimento de 200 cm, a altura de 91 cm e a largura de 68 cm. O peso total da desfibradeira ? de 250 kg. A caracter?stica mais importante da m?quina ? um maior numero de batida e uma menor turbul?ncia de ar dentro da m?quina. Isso facilitou a melhoria da qualidade das fibras. Os estudos mostram que de cada folha pode ser extra?do cerca de 2,8 a 4,5 % de fibras Assim sendo pode ser retirada cerca de 4 a 5 toneladas de fibras por hectare. Esta quantidade ? bem maior do que a produ??o de algod?o por hectare. Quando as fibras sendo empregadas no mercado podem gerar postos de trabalho e renda para popula??o do campo bem como das suas aplica??es
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Jawaid, Abrar. "The decortication of flax by the application of hydroacoustic radiation." Thesis, Anglia Ruskin University, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.369387.

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Wendelken, Lauren. "Effects of hippocampal lesions on social learning in rats." Thesis, Boston University, 2001. https://hdl.handle.net/2144/33590.

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Thesis (B.A.)--Boston University
PLEASE NOTE: Boston University Libraries did not receive an Authorization To Manage form for this thesis or dissertation. It is therefore not openly accessible, though it may be available by request. If you are the author or principal advisor of this work and would like to request open access for it, please contact us at open-help@bu.edu. Thank you.
2031-01-01
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Garofalo, Lorella. "Nerve growth factor- andor monosialoganglioside GM1-induced neuroplasticity in brain of decorticated adult and aged rats." Thesis, McGill University, 1993. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=41292.

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The ability of two putative trophic agents, nerve growth factor (NGF) and the monosialoganglioside GM1, to induce neurochemical, morphological and behavioral recovery following injury to the adult rat basalo-cortical cholinergic pathway was studied. Treatment of unilaterally decorticated rats with these agents was shown to: attenuate deficits in holinergic markers of the nucleus basalis magnocellularis (NBM), prevent shrinkage of choline acetyltransferase (ChAT)- and p75$ sp{ rm NGFR}$-immunoreactive (IR) NBM neurons, and stimulate cortical ChAT activity and high affinity choline uptake, in a dose-dependent manner with equal efficacies but different potencies. Quantitative light and electron microscopic studies, assisted by image analysis, showed that GM1 or NGF treatment also similarly attenuated lesion-induced deficits in cortical ChAT-IR fiber length. By contrast, NGF, but not GM1, treatment caused significant synaptic remodelling in the remaining cortex of adult lesioned rats; this was reflected by increases in ChAT-IR varicosity number, presynaptic terminal size, and in the number of boutons with synaptic contacts. GM1 treatment only attenuated such lesion-induced deficits. Exogenous GM1 was also shown to potentiate NGF-reduced effects on basalo-cortical cholinergic markers and on cortical synaptic remodelling, but did not affect the affinity or number of NGF binding sites in brain membranes isolated from lesioned animals. This suggests that GM1 probably affects an alternative step of the NGF signal transduction cascade to potentiate NGF effects. Moreover, NGF or GM1 treatment were also shown to: distinctly regulate striatal cholinergic markers, differ with respect to the delay possible in treatment time onset for effective protection from retrograde regeneration, and diversely affect the behaviour of these animals in passive avoidance and Morris water maze tasks. In aged rats ($>$20 months), NGF and/or GM1 treatment were also shown to effectively prevent de
The work of this thesis has thus provided evidence that the injured adult rat basalo-cortical cholinergic pathway can exhibit substantial neurochemical and morphological plasticity in response to NGF and/or GM1 treatment. In particular, it has been shown that these agents cause significant alterations in cholinergic innervation.
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Araujo, Max Cesar de. "Caracterização mecanica da castanha de caju (Anacardium ocidentale L.) para fins de beneficiamento e desenvolvimento de decorticador de cilindros rotativos." [s.n.], 2005. http://repositorio.unicamp.br/jspui/handle/REPOSIP/256931.

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Orientador: Antonio Carlos de Oliveira Ferraz
Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Agricola
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Resumo: A agroindústria do caju tem como principal produto econômico à amêndoa da castanha e, atualmente, utiliza o impacto aleatório como princípio de decorticação, com perdas de 40 a 50% de amêndoas inteiras. O desenvolvimento de mecanismos mais adequados para a ruptura da casca e liberação de amêndoas inteiras, exige conhecimento e aplicação de parâmetros associados às propriedades mecânicas do material. Este trabalho investigou algumas destas propriedades da castanha 'CCP 76¿, tais como: variações nas dimensões características, massa e volume, microestrutura, fragilidade do endocarpo e rigidez da amêndoa. Investigou-se também, a deformação específica limite como parâmetro tecnológico para a abertura das castanhas, através de ensaios de impacto. Com os resultados obtidos nestes estudos, desenvolveu-se um protótipo decorticador de cilindros rotativos que utiliza o princípio da compressão combinado com um impacto direcionado. Utilizou-se a metodologia de superfície de resposta para avaliar os resultados dos ensaios mecânicos e de desempenho do protótipo proposto, com castanhas tratadas em diferentes níveis de umidificação e tratamento térmico. Os resultados obtidos evidenciaram alterações nas dimensões características, na massa e volume das castanhas, como também, na microestrutura do endocarpo. Os resultados do ensaio de cisalhamento do endocarpo e resistência da amêndoa apontaram diferenças entre material in natura e o tratado termicamente. Nos ensaios de impacto, obteve-se 77,55% de abertura das castanhas com liberação da amêndoa inteira utilizando-se a deformação específica limite de 19%, aplicada ao longo da largura. O protótipo decorticador proposto apresentou desempenho de 67,35% para ruptura total da casca e amêndoa inteira liberada, com apenas uma passada pelos cilindros, utilizando a rotação combinada de 1150-1750rpm. A preparação das castanhas através do efeito combinado do tempo de umidificação e tratamento térmico não afetou o desempenho do protótipo na faixa de variação utilizada, mas apontou a região de tendência onde às respostas são mais adequadas
Abstract: The cashew industry has as its main product the kernel of the cashew nut. Currently, it uses by large the random impact as decortication method which produces losses from 40 to 50% of whole kernels. The development of more appropriate mechanisms to rupture of shell and to release of whole kernel, demands knowledge and application of parameters associated with the mechanical properties of the nut. This work aimed to investigate some of these properties of cashew nut 'CCP 76', such as: variations in characteristic dimensions, mass and volume, microstructure, brittleness of the endocarp and rigidity of kernel associated with nut treatment prior to cracking. It was also investigated, the limit specific deformation as technological parameter using a specially designed impact tester. Based in those studies, it was designed and constructed a nut decorticator prototype with rotary cylinders to combine compression and impact to crack the shell. The response surface methodology was used to evaluate the results of the mechanical tests and the performance of the prototype when cashew nuts treated in different humidity levels and thermal treatment were used. The results showed changes in the characteristic dimensions, in the mass and volume of the cashew nuts as well as in the microstructure of the endocarp after heat treatment. The results for the shear tests in the endocarp and stiffness of the kernel pointed differences between in natura and thermally treated nuts. For the impact test, it was obtained 77,55% of free whole kernels using the limit specific deformation of 19%, applied along the width of the nut. The nut decorticator proposed was able to release 67,35% free whole kernel with just one pass between the cylinders, using the cylinders combined rotation of 1150-1750rpm. The combined effect of time of humidity and thermal treatment used in the preparation of the cashew nuts didn't seem to affect the performance of the prototype, in the range of used. However, it pointed out to an area in the response surface where the combination of treatments would be more appropriate
Doutorado
Maquinas Agricolas
Doutor em Engenharia Agrícola
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Cao, Xiwen. "Effects of isolation condition and spray drying on camelina gum yield and properties." Thesis, Kansas State University, 2017. http://hdl.handle.net/2097/38229.

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Master of Science
Department of Biological & Agricultural Engineering
Donghai Wang
Camelina sativa (L). Crantz that belongs to Brassicaceae family has been grown as a dicotyledonous oilseed crop in the cold places like America and Canada. Camelina seeds are widely used for the extraction of oil and protein. Recently, research found that camelina gum is an excellent candidate for food and industrial uses as thickener or stabilizer. The objectives of this research were 1) to increase camelina gum isolation efficiency using spray drying technology, and 2) to develop an innovative method to remove gum from seed bran to increase protein and oil extraction efficiency and quality. The camelina gums isolated using ethanol precipitation and spray drying method from the whole camelina seeds were compared. Effects of spray drying temperature on yield, gum morphology, and gum rheological and thermal properties were studied. The representative sample dried at 165°C was chosen to study the effects of concentration, temperature, pH and additives (NaCl, CaCl₂, sucrose, and ethanol) on viscosity and viscoelastic properties of the isolated gum. The gum showed a shear thinning behavior when shear rate increased gradually, higher concentrations of additives only slightly affect the rheological properties. Results showed that spray drying is an effective method in terms of saving time and energy, and provided positive rheology benefits on camelina gum isolation. Pre-removal of gum from camelina seeds can increase protein and oil yield and their quality. Decortication can separate 10-17% of the total camelina seed as bran. A wind tunnel was used to separate lighter bran particles from heavier endosperm and unbroken seeds. Camelina gum isolation from the separated seed bran using the traditional ethanol precipitation method was optimized using response surface methodology where the simultaneous effect of the three independent variables (seed bran to water ratio, isolation temperature, and isolation time) were investigated for gum yield, purity, and optimum rheological properties. Three independent quadratic modules were developed and the original data fitted the models fitted (R² = 0.995, 0.877, and 0.804). The optimal isolation conditions were seed bran to water ratio of 1:39, isolation temperature of 35 ºC, and isolation time of 1.5 h and 0.839 desirability was obtained by the rigorous statistics analysis. The protein yield and quality extracted from decorticated endosperm were improved significantly compared with that extracted from whole seeds meal without decortication. In addition, the degumming step can be eliminated before protein and oil extraction that increase protein and oil extraction efficiency.
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Bastos, Adriano Chaves. "Respostas dos grãos de mamona 'AL Guarany 2002' ao tratamento térmico visando ruptura e remoção do tegumento." [s.n.], 2011. http://repositorio.unicamp.br/jspui/handle/REPOSIP/256870.

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Orientador: Antônio Carlos de Oliveira Ferraz
Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Agrícola
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Resumo: Atualmente o Brasil ocupa o terceiro lugar no ranking mundial na produção e extração do óleo de mamona (Ricinus communis L), correspondendo a 13,2%, depois da Índia e da China, primeiro e segundo maiores produtores, respectivamente. Os frutos de mamona, depois de colhidos, são secos e debulhados obtendo os grãos, os quais são armazenados para posteriormente serem encaminhados à extração do óleo. O processo de extração do óleo é realizado pela prensagem dos grãos íntegros: tegumento e endosperma. Este tegumento é pigmentado e abrasivo, desgastando precocemente os equipamentos e demandando processos adicionais de clarificação do óleo. A decorticação dos grãos para a retirada do tegumento, anterior à prensagem, poderia gerar uma economia no processo de extração. O objetivo deste trabalho foi verificar o efeito da temperatura de secagem nas propriedades físico-mecânicas dos grãos de mamona da cultivar 'AL Guarany 2002', após os frutos serem secos e debulhados. Para tal determinação foram efetuados ensaios de compressão entre pratos planos, rígidos e paralelos nos grãos após os tratamentos de secagem, para as direções do comprimento e largura, obtendo-se a força máxima na ruptura do tegumento, energia na ruptura, deformação específica e rigidez. As temperaturas de secagem utilizadas foram de 40, 60, 80 e 100°C. Posteriormente, foram efetuadas avaliações do grau de ruptura do tegumento após os grãos serem submetidos à alta taxa de deformação utilizando-se equipamento projetado e construído para tal finalidade, denominado DIRADEL. Verificou-se nos ensaios de compressão que a secagem dos frutos de mamona a diferentes temperaturas influencia nas propriedades mecânicas dos grãos de mamona. Com o aumento da temperatura de secagem a força e a energia na ruptura do tegumento para a direção do comprimento reduziram-se e, inversamente, estes valores elevaram-se para a direção da largura. Os valores para a direção do comprimento oscilaram entre 55,52 a 63,11 N para a força máxima na ruptura do tegumento, 0,0169 a 0,0202 J para a energia, 4,03 a 4,48% para a deformação específica e 93,29 a 100,62 N.mm-1 para a rigidez. Para a direção da largura os valores oscilaram entre 58,46 a 70,02 N para a força máxima na ruptura do tegumento, 0,0281 a 0,0365 J para a energia, 9,10 a 11,10% para a deformação específica e 62,11 a 70,50 N.mm-1 para a rigidez. Nos ensaios a alta taxa de deformação, a deformação especifica de 14% apresentou a maior porcentagem de grãos com ruptura total do tegumento e liberação do endosperma inteiro, independente da direção e do tratamento de secagem, sendo esta a deformação específica limite. A direção da largura demonstrou porcentagem de grãos com ruptura total do tegumento e endosperma inteiro inferior à posição do comprimento, independente do tratamento de secagem. O desempenho da decorticação dos grãos de mamona pode ser afetado com grãos secos a temperaturas acima de 60°C, pois a retirada excessiva de água do endosperma prejudica sua resistência deixando-o mais frágil. Secagens com temperaturas mais elevadas devem ocorrer com maior cautela se o intuito for a decorticação dos grãos
Abstract: Brazil currently occupies the third position in the world?s ranking production and extraction of castor oil (Ricinus communis L), corresponding to 13.2%, after India and China which are the first and second biggest producers, respectively. The fruits of castor bean, once harvested, are dried and threshed, and when the grains are obtained, they are stored for later transport to oil extraction. This process is done by pressing the intact grain, seed coat and endosperm. The seed coat is pigmented and abrasive, wearing the equipment earlier and requiring additional processes to clarify the oil, afterwards. The decortication of the grain for seed coat removal, prior to pressing, could generate savings in the extraction process. The aim of this study was to assess the effect of drying temperature on physico-mechanical properties of castor beans, cultivar 'AL Guarany 2002', after the fruits were dried and threshed. For such determination, compression tests were made between flat, rigid and parallel plates on the grains, after the drying treatments, to the directions of length and width, obtaining the maximum force at rupture of the seed coat, energy at break, specific deformation and stiffness. The drying temperatures used were 40, 60, 80 and 100 °C. The grains were evaluated based on the degree of disruption of the tegument after the beans are exposed to high strain rate using equipment designed and built for this purpose, called DIRADEL. It was found in compression test that castor fruits dried at different temperatures was influenced by the mechanical properties of castor beans. With the increase of drying temperature, the strength and energy to break the seed coat along the length is reduced and, conversely, these values rose to the width direction. Values for the direction of the length ranged from 55,52 to 63,11 N for the maximum force at rupture of the seed coat, from 0,0169 to 0,0202 J for energy, 4,03 to 4,48% for the specific deformation and from 93,29 to 100,62 N.mm-1 for stiffness. For the width direction, values ranged from 58,46 to 70,02 N for the maximum force at rupture of the seed coat, from 0,0281 to 0,0365 J for energy, 9,10 to 11,10% for the specific deformation, 62,11 to 70,50 N.mm-1 for stiffness. In the experiments at high strain rate, specific deformation of 14%, had the highest percentage of grains with total rupture of the seed coat and endosperm full release, regardless of direction and drying treatment, which is the specific deformation limit. The width direction showed the percentage of grains with total rupture of the seed coat and endosperm lower whole length of the position, regardless of the drying treatment. The performance of the decortication of castor beans can be affected by dry grains at temperatures above 60°C, because the excessive withdrawal of water from the endosperm, affecting their resistance and making it more fragile. Drying at higher temperatures should be done with greater caution when decorticating the grains
Mestrado
Maquinas Agricolas
Mestre em Engenharia Agrícola
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Rudkin, Teresa. "Organization of the thalamic projection onto parvalbumin- immunoreactive striatal interneurons : a study of the normal topography in the rat and its alteration following neonatal decortication." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape10/PQDD_0001/MQ44264.pdf.

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Canto, Fabiano Ricardo de Tavares. "Influência da decorticação na neoformação tecidual da interface do enxerto ósseo na coluna vertebral." Universidade de São Paulo, 2007. http://www.teses.usp.br/teses/disponiveis/17/17142/tde-07032008-001014/.

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Foi realizado estudo experimental para determinar a influência da decorticação dos elementos posteriores da coluna vertebral na integração do enxerto ósseo autólogo esponjoso ou cortical, considerando a avaliação histológica quantitativa e qualitativa dos tecidos (ósseo, cartilaginoso e fibroso) presentes na interface entre o leito receptor e o enxerto ósseo. Setenta e dois ratos Wistar foram divididos em quatro grupos experimentais: grupo I_ leito posterior decorticado enxerto esponjoso, grupo II_ leito posterior decorticado enxerto cortical, grupo III_ leito posterior não decorticado enxerto esponjoso, grupo IV_ leito posterior não decorticado enxerto cortical. Os quatro grupos experimentais foram sacrificados com 3, 6 e 9 semanas de pós-operatório e a região operada foi submetida a avaliação histológica e histomorfométrica. Nos animais sacrificados com 3 semanas de pós-operatório a média da porcentagem de osso neoformado no grupo I foi de 40,87%±5,24, no grupo II de 39,13%±7,27, no grupo III de 6,13%±2,13, no grupo IV de 9,27%±4,06. Foi observada diferença estatística entre os valores da neoformação óssea (p=0,0005). A média da porcentagem de tecido cartilaginoso neoformado no grupo I foi de 8,36%±1,08, no grupo II de 7,46%±0,85, no grupo III de 11,10%±6,026 e no grupo IV de 9,133%±3,84. Não foi observada diferença estatística entre os valores da neoformação de tecido cartilaginoso (p=0,6544). A média da porcentagem de tecido fibroso neoformado no grupo I foi de 11%±3,97, no grupo II de 6,13%±1,78, no grupo III de 26,27%±7,25 e no grupo IV de 21,87%±12,7. Foi observada diferença estatística entre os valores da neoformação de tecido fibroso (p=0,0008). Nos animais sacrificados com 6 semanas de pós-operatório a média da porcentagem de osso neoformado no grupo I foi de 38,53%±14,13, no grupo II de 40,40%±13,90, no grupo III de 10,27%±5,17 e no grupo IV de 7,6%±3,53. Foi observada diferença estatística entre os valores da neoformação óssea (p=0,0005). A média da porcentagem de tecido cartilaginoso neoformado no grupo I foi de 6,6%±3,46, no grupo II de 8,07%±1,74, no grupo III de 7,47%±3,27 e no grupo IV de 6,13%±2,08. Não foi observada diferença estatística entre os valores da neoformação de tecido cartilaginoso (p=0,4889). A média da porcentagem de tecido fibroso neoformado no grupo I foi de 7,67%±5,12, no grupo II foi de 7,1%±3,16, no grupo III de 9,8%±7,54 e no grupo IV de 10,4%±5,59. Não foi observada diferença estatística entre os valores da neoformação de tecido fibroso (p=0,7880). Nos animais sacrificados com 9 semanas de pós-operatório a média da porcentagem de osso neoformado no grupo I foi de 29,53%±3,473, no grupo II de 30,6%±10,48, no grupo III de 16,4%±6,072 e no grupo IV de 18,73%±5,727. Foi observada diferença estatística entre os valores de osso neoformado (p=0,0026). A média da porcentagem de tecido cartilaginoso neoformado no grupo I foi de 3,133%±1,33, no grupo II de 4,067%±1,686, no grupo III de 10,53%±4,751, no grupo IV de 12,07%±2,753. Foi observada diferença estatística entre os valores de tecido cartilaginoso neoformado (p=0,0006). A média da porcentagem de tecido fibroso neoformado no grupo I foi de 3,733%±1,672, no grupo II de 4,4%±1,339, no grupo III de 6,67%±2,767 e no grupo IV de 6,8%±2,492. Foi observada diferença estatística entre os valores da neoformação de tecido fibroso (p=0,0214). A realização da decorticação acelerou o processo histológico da integração do enxerto ósseo. Ocorrendo maior produção de tecido ósseo neoformado e predomínio da ossificação do tipo intramembranosa no grupo de animais nos quais a decorticação foi realizada.
An experimental study was conducted to determine the influence of the posterior vertebral spine elements decortication in the cancellous or cortical bone graft integration, considering the qualitative and quantitative histologic evaluation of the tissue (bone, cartilaginous and fibrous) presents in the interface between the receptor bed and the bone graft. Seventy two Wistar rats were divided in four experimental groups: group I_ decorticated posterior bed and cancellous graft, group II_ decorticated posterior bed and cortical graft, group III_ not decorticated posterior bed and cancellous graft, group IV_ not decorticated posterior bed and cortical graft. The four experimental groups were sacrificed in 3,6 and 9 post-operative weeks and the operated section of the spine was submitted to a histologic and histomorphometric evaluation. In the animals sacrificed in the third post-operative week the mean percentage of new bone formation in the group I was 40,87%±5,24, in the group II 39,13%±7,27, in the group III 6,13%±2,13 and in the group IV 9,27%±4,06. Was observed statistic difference between the percentage of new bone formation (p=0,0005). The mean percentage of cartilaginous tissue new formation in the group I was 8,36%±1,08, in the group II 7,46%±0,85, in the group III 11,10%±6,026 and in the group IV 9,133%±3,84. Was not observed statistic difference between the percentage of cartilaginous tissue new formation (p=0,6544). The mean percentage of fibrous tissue new formation in the group I was 11%±3,97, in the group II 6,13%±1,78, in the group III 26,27%±7,25 and in the group IV 21,87%±12,7. Was observed statistic difference between the percentage of fibrous tissue new formation (p=0,0008). In the animals sacrificed in the sixth post-operative week the mean percentage of new bone formation in the group I was 38,53%±14,13, in the group II 40,40%±13,90, in the group III 10,27%±5,17 and in the group IV 7,6%±3,53. Was observed statistic difference between the percentage of new bone formation (p=0,0005). The mean percentage of cartilaginous tissue new formation in the group I was 6,6%±3,46, in the group II 8,07%±1,74, in the group III 7,47%±3,27 and in the group IV 6,13%±2,08. Was not observed statistic difference between the percentage of cartilaginous tissue new formation (p=0,4889). The mean percentage of fibrous tissue new formation in the group I was 7,67%±5,12, in the group II 7,1%±3,16, in the group III 9,8%±7,54 and in the group IV 10,4%±5,59. Was not observed statistic difference between the percentage of fibrous tissue new formation (p=0,7880). In the animals sacrificed in the ninth post-operative week the mean percentage of new bone formation in the group I was 29,53%±3,473, in the group II 30,6%±10,48, in the group III 16,4%±6,072 and in the group IV 18,73%±5,727. Was observed statistic difference between the percentage of new bone formation (p=0,0026). The mean percentage of cartilaginous tissue new formation in the group I was 3,133%±1,33, in the group II 4,067%±1,686, in the group III 10,53%±4,751 and in the group IV 12,07%±2,753. Was observed statistic difference between the percentage of cartilaginous tissue new formation (p=0,0006). The mean percentage of fibrous tissue new formation in the group I was 3,733%±1,672, in the group II 4,4%±1,339, in the group III 6,67%±2,767 and in the group IV 6,8%±2,492. Was observed statistic difference between the percentage of fibrous tissue new formation (p=0,0214). The decortication procedure accelerated the histologic process of the bone graft integration, occurring more new bone formation and predominance of intramembranous type of ossification, in the animals with the decorticated posterior elements.
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Liss, Julie Lynnae. "THE ECOLOGY OF DRIFT ALGAE IN THE INDIAN RIVER LAGOON, FLORIDA." Master's thesis, University of Central Florida, 2004. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/4476.

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To gain an understanding of the ecology of drift algae in the Indian River Lagoon system along the east coast of central Florida, four questions were addressed: 1) What is the composition and rate of accumulation of drift? 2) How much movement and turnover occurs within drift accumulations? 3) Do growth rates differ for drift versus attached algae? 4) Is there a difference in photosynthetic performance in drift versus attached algal species? Manipulative field and laboratory experiments were conducted to address these questions with the green macroalga Codium decorticatum and the red macroalga Gracilaria tikvahiae. Changes in pigment concentration and biomass were used as indicators of acclimation from an attached to drift state in Gracilaria tikvahiae and Codium decorticatum. Short-term physiological changes as demonstrated by electron transport rate (ETR) were also used as indications of acclimation from an attached to drift state in C. decorticatum. Composition and rate of accumulation of drift varied by season. While both transport and turnover of drift occurred, turnover within drift accumulations occurred at low rates and was significantly lower in the spring during decreased flow rates. There were no significant differences in growth or pigment concentrations in drift versus attached G. tikvahiae or C. decorticatum. In addition, there were no apparent physiological acclimations to a drift state in C. decorticatum.
M.S.
Department of Biology
Arts and Sciences
Biology
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Books on the topic "Decorticator"

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Jugo, Slobodan B. Surgical atlas of external rhinoplasty: Decortication approach. Edinburgh: Churchill Livingstone, 1995.

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Book chapters on the topic "Decorticator"

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Ahmed, Hesham M., Christopher T. Aquina, Vicente H. Gracias, J. Javier Provencio, Mariano Alberto Pennisi, Giuseppe Bello, Massimo Antonelli, et al. "Decortication." In Encyclopedia of Intensive Care Medicine, 676. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-00418-6_3080.

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Murthy, Sudish C. "Lung Decortication." In Perioperative Management of Patients with Rheumatic Disease, 385–88. New York, NY: Springer New York, 2012. http://dx.doi.org/10.1007/978-1-4614-2203-7_38.

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Paneth, Matthias, Peter Goldstraw, and Barbara Hyams. "Empyema — Decortication." In Fundamental Techniques in Pulmonary and Oesophageal Surgery, 92–95. London: Springer London, 1987. http://dx.doi.org/10.1007/978-1-4471-3122-9_14.

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Kean, Jacob, and Travis Williams. "Decorticate Posturing." In Encyclopedia of Clinical Neuropsychology, 1065. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-57111-9_232.

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Kean, Jacob. "Decorticate Posturing." In Encyclopedia of Clinical Neuropsychology, 783–84. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-0-387-79948-3_232.

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Kean, Jacob, and Travis Williams. "Decorticate Posturing." In Encyclopedia of Clinical Neuropsychology, 1. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-56782-2_232-2.

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Meyer, Mark, and Farid Gharagozloo. "Robotic Pulmonary Decortication." In Robotic Surgery, 479–80. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-53594-0_40.

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Ahmed, Hesham M., Christopher T. Aquina, Vicente H. Gracias, J. Javier Provencio, Mariano Alberto Pennisi, Giuseppe Bello, Massimo Antonelli, et al. "Decorticate/Decerebrate Rigidity." In Encyclopedia of Intensive Care Medicine, 676. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-00418-6_1451.

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Ahmed, Hesham M., Christopher T. Aquina, Vicente H. Gracias, J. Javier Provencio, Mariano Alberto Pennisi, Giuseppe Bello, Massimo Antonelli, et al. "Decorticate/Decerebrate Posturing." In Encyclopedia of Intensive Care Medicine, 674–76. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-00418-6_395.

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Lotan, Yair, Margaret S. Pearle, and Jeffrey A. Cadeddu. "Laparoscopic Renal Cyst Decortication." In Essential Urologic Laparoscopy, 59–78. Totowa, NJ: Humana Press, 2003. http://dx.doi.org/10.1007/978-1-59259-381-1_5.

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Conference papers on the topic "Decorticator"

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J.B. Kawongolo, J. Sentong-Kibalama, and and L. Brown. "Design of a Decorticator for Small Scale Sisal Processing in Uganda." In 2002 Chicago, IL July 28-31, 2002. St. Joseph, MI: American Society of Agricultural and Biological Engineers, 2002. http://dx.doi.org/10.13031/2013.10304.

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W. Stanley Anthony. "Decortication of Straw From Seed Flax." In 2001 Sacramento, CA July 29-August 1,2001. St. Joseph, MI: American Society of Agricultural and Biological Engineers, 2001. http://dx.doi.org/10.13031/2013.3587.

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Francisco Valdenor Pereira da Silva and Guilherme gomes Noronha. "PROTÓTIPO DE MÁQUINA DECORTICADORA DE CASTANHA DE CAJU." In IX Congresso Nacional de Engenharia Mecânica. Rio de Janeiro, Brazil: ABCM Associação Brasileira de Engenharia e Ciências Mecânicas, 2016. http://dx.doi.org/10.20906/cps/con-2016-0419.

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"Separation of Fibre and Shives from Decorticated Flax." In 2014 ASABE Annual International Meeting. American Society of Agricultural and Biological Engineers, 2014. http://dx.doi.org/10.13031/aim.20141903382.

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Berzenji, Lawek, Dario Michaux, Suresh Krishan Yogeswaran, Annemie Van Breussegem, Patrick Lauwers, Jo Raskin, Jeroen Hendriks, Jan Van Meerbeeck, and Paul Van Schil. "Pleurectomy/decortication for malignant pleural mesothelioma: a single-centre experience." In ERS International Congress 2020 abstracts. European Respiratory Society, 2020. http://dx.doi.org/10.1183/13993003.congress-2020.1718.

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Subotic, Dragan, Nikola Atanasijadis, Dejan Moskovljevic, Milan Savic, Zeljko Garabinovic, and Vladimir Milenkovic. "Late functional effects of lung decortication for stage III pleural empyema." In Annual Congress 2015. European Respiratory Society, 2015. http://dx.doi.org/10.1183/13993003.congress-2015.pa1505.

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D.Y. Corredor, S.R Bean, T. Schober, and D. Wang. "Effect of Decortication of Sorghum on Ethanol Production and Composition of DDGS." In 2005 Tampa, FL July 17-20, 2005. St. Joseph, MI: American Society of Agricultural and Biological Engineers, 2005. http://dx.doi.org/10.13031/2013.19582.

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Lee, SY, YST Tan, and SA Wijeratne. "ESRA19-0057 Optimising pain relief in a paediatric patient for vats decortication." In Abstracts of the European Society of Regional Anesthesia, September 11–14, 2019. BMJ Publishing Group Ltd, 2019. http://dx.doi.org/10.1136/rapm-2019-esraabs2019.165.

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ergonul, ayse gul, ali Ozdil, tevfik ilker Akcam, kutsal Turhan, alpaslan Cakan, and Ufuk Cagirici. "Pleurectomy, decortication and hyperthermic chemotheraphy in malignant pleural mesothelioma, a single institution experience." In ERS International Congress 2017 abstracts. European Respiratory Society, 2017. http://dx.doi.org/10.1183/1393003.congress-2017.pa2458.

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Pahlavi, Ghifari Rezka, Dwi Purnomo, Anas Bunyamin, and Asri Peni Wulandari. "Ramie (Boehmeria nivea) decortication waste bio-briquette business model canvas with design thinking approach." In RENEWABLE ENERGY TECHNOLOGY AND INNOVATION FOR SUSTAINABLE DEVELOPMENT: Proceedings of the International Tropical Renewable Energy Conference (i-TREC) 2016. Author(s), 2017. http://dx.doi.org/10.1063/1.4979230.

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