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| Registros recuperados: 73 | |
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| Goneli, André Luís Duarte; Universidade Federal de Viçosa; Corrêa, Paulo Cesar; Universidade Federal de Viçosa; Magalhães, Felipe Elia de almeida; Universidade Federal de Viçosa; Baptestini, Fernanda Machado; Universidade Federal de Viçosa. |
| O objetivo do presente trabalho foi avaliar o efeito da variação do teor de água na contração volumétrica, dimensões características e forma dos frutos de mamona durante a secagem. Foram utilizados frutos colhidos com teor de água de 2,50 (b.s.), secos à temperatura de 40°C até o teor final de 0,11 (b.s.). O tamanho dos frutos foi determinado por meio da variação do volume e a forma foi analisada pela esfericidade e circularidade. A contração volumétrica dos frutos foi determinada pela relação entre o volume em cada teor de água e o volume inicial. Com base nos resultados, concluiu-se que a forma dos frutos de mamona é influenciada pela redução do teor de água, promovendo redução da esfericidade e circularidade. As dimensões características... |
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Palavras-chave: 5.03.03.00-7 Ricinus communis L.; Propriedades físicas; Contração volumétrica Engenharia de Processamento de Produtos Agrícolas Ricinus communis L.; Physical properties; Shrinkage. |
| Ano: 2011 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/4629 |
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| Kibar, Hakan; Igdir University; Öztürk, Turgut; Igdir University; Temizel, Kadir Ersin; Ondokuz Mayis University. |
| Selected engineering properties (physical and mechanical) of dry bean under non-irrigation and drip-irrigation were determined and compared. These properties are necessary for the design of equipments for harvesting, processing, transporting, estimating loads in storage structures for crops and flow problems in silos such as arching, ratholing, irregular flow and segregation. Some engineering characteristics such as: average length, width, thickness, the geometric mean diameter, sphericity, surface area, volume, thousand grain mass (M1000), bulk and true densities, porosity, angle of internal friction, static coefficient of friction, Poisson ratio and pressure ratio were studied. The highest average values for physical properties were recorded at... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Agricultural Engineering dry bean; Physical properties; Mechanical properties; Statistical analysis. |
| Ano: 2014 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/19394 |
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| Jahanbakhshi, Ahmad. |
| The physical and mechanical properties of agricultural products have an effective role in determining the quality of the products, reducing the potential damage caused by transportation and eventually designing the equipment used in the processing of the products. In this study, some physical and mechanical properties of snake melon were measured under standard conditions. Physical properties included length, width, thickness; mean diameter (geometric and arithmetic), sphericity, surface area, aspect ratio, mass, volume and density. The mechanical properties of the samples and their lengths were measured under the conditions of pressure (bruise), bending (break) and cutting of the snake melons in halves using a Zwick/Roell Instron testing machine based on... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Snake melon; Physical properties; Mechanical properties.. |
| Ano: 2018 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4305 |
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| Jaliliantabar, Farzad; Lorestani, Ali Nejat; Jaliliantabar, Farzad Jaliliantabar. |
| In this study, some important physical and mechanical properties of the hawthorn and the effect of moisture on them were investigated. The effect of moisture at two levels (64.01% and 70.1%, w.b.) on the geometric dimensions (length, width, thickness, arithmetic mean diameter, geometric mean diameter, degree of sphericity, surface area, projected area, criteria projected area, mass, volume and the apparent), true density, porosity, coefficient of static friction and coefficient of rolling on three levels (wood, glass and galvanized) and mechanical properties obtained by impact testing machine using a randomized factorial design was evaluated by software SPSS18. Results indicate that moisture has an effect on the physical properties of the hawthorn. The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hawthorn; Physical properties; Maximum force at impact; Mechanical properties; Moisture content. |
| Ano: 2013 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2676 |
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| Obi, Okey Francis; Okechukwu, Michael Emeka. |
| Abstract Parboiling is a pre-dehulling operation and, the effect on the physical properties of African breadfruit seed (var. africana) was investigated. Freshly extracted seeds were parboiled for 0 (control), 5, 10, 15, and 20 minutes, and their physical properties determined. It was observed that parboiling time had a significant effect (p<0.05) on all the physical properties of African breadfruit seeds investigated. The moisture content of the seed ranged from 32.92±0.23 to 50.78±0.19 % (w.b.) as the parboiling time increased. Generally, it was observed that the mean values observed for the physical dimensions (axial dimensions, mean diameters, sphericity, aspect ratio and surface area) increased from 0 to 10 min. parboiling time after which the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: African breadfruit; Parboiling time; Physical properties; Frictional properties. |
| Ano: 2020 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4918 |
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| khanahmadzadeh, Abdolvahed; Goli, Hadi; Ghamari, Salah. |
| Measuring physical properties of crops is necessary for optimal harvesting, cleaning, threshing, sorting, drying, and milling operations. Despite an extensive literature review, there is no information about the physical properties of the wild safflower seed. In this study the physical properties of the wild safflower seed have been investigated as a function of moisture content at four levels (5.4%, 9.4% (initial), 13.4%, and 17.4% d.b.). The average length (mm), width (mm), thickness (mm), arithmetic mean diameter (mm), geometric mean diameter (mm), sphericity (%), volume (cm³), seed surface area (cm²), terminal velocity (m/s), bulk density (gr/cm³), actual density (gr/cm³), and porosity (%) at initial moisture content were 6.418, 3.499, 3.388, 4.435,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Physical properties; Wild safflower seed; Moisture content. |
| Ano: 2021 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5977 |
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| Dauda, Solomon Musa; Aliyu, Mohammed; Balami, Ayuba Audu; Mohammed, Ibrahim Shaba; Abdulfatai, Yusuf. |
| Some physical and mechanical properties of Luffa (L. cylindrica) seeds were investigated at five different moisture content levels of 6%, 12%, 18%, 24% and 30%. The physical properties which included geometric mean diameters (minor, major, intermediate), sphericity, weight, bulk density and coefficient of static friction were determined. The mean values of the physical properties of the seeds were determined as major diameter 1.1423-1.2427 cm, width 0.54-0.6743 cm, thickness 0.8633-1.079 cm, geometric mean diameter 0.8102-0.9663 cm, sphericity 0.7104-0.7703, surface area 2.0620-2.9512 cm2, specific gravity 0.7600-1.0267, bulk density 0.3730-0.6053 g m-3, and porosity 0.5823-0.0430, respectively. The physical properties of the seed showed that the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Luffa seeds; Moisture content; Physical properties; Mechanical properties. |
| Ano: 2017 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4138 |
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| Sharon, M Esther Magdalene; , CV Kavitha Abirami; , K Alagusundaram; , J Alice RPS. |
| Physical properties of Black gram are important during harvesting, cleaning and drying with machines and also during improvement of these machines. This study was conducted to evaluate some moisture-dependent physical properties of Black gram namely, grain dimensions, thousand grain mass, surface area, sphericity, bulk density, true density, porosity and angle of repose. As the moisture content increased from 8.696% to 21.951% d.b., the three axial dimensions of the Black gram increased and the arithmetic and geometric mean diameter ranged from 3.736 ± 0.14 to 4.276 ± 0.14 mm and 3.797 ± 0.13 to 4.322 ± 0.13 mm respectively. The hundred grain mass of Black gram were 42.52 ± 1.03 and 48.18 ± 0.45 kg. The sphericity values of Black gram increased from 79.69%... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Post harvest Processing of grains Black gram; Physical properties; Moisture content. |
| Ano: 2015 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2803 |
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| Hommood, Momtaz Isaak; Yahya, Azmi; Razif, Muhammad; Mat, Nazmi. |
| Physical and mechanical properties are important issues to be studied due to its importance in the design of agricultural equipment and its relationship to the production operation. The average physical properties for weight, length, diameter, volume, porosity, repose angle, and angle of friction of sweet corn cobs and some of their components were measured. Moreover, the average mechanical properties for pulling force at three different angles ( 0, 45 and 90 )degree where at 90 degree gave the lowest value of pulling force of corn cobs which was 51.14± 1.97 N, compression force at vertical 497.56± 63.14 N; at horizontal 2801.26± 346.10 N, shearing force at two different angles ( 0 and 45 ) degree where at 45 gave the lowest value of shearing force of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Physical properties; Mechanical properties; Shearing force; Penetration force; Sweet corn.. |
| Ano: 2019 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5306 |
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| Khura, Tapan K.; Barman, Jitendra D.; Chandra, Ram; Yadav, Sobh N.; Chauhan, Narvendra S.; Rautaray, Swarup K.. |
| The large cardamom is one of the most important spice crops grown in Himalayan region of Sikkim, India. The capsules of the harvested large cardamom are dried before consumption. The paper presents the physical properties of freshly harvested and dried large cardamom capsules. The geometrical mean diameter, sphericity, bulk density and mean values of angle of repose of the freshly harvested large cardamom capsules were observed to be 18.53±1.73 mm, 0.76, 332.21±14.24 kg m-3 and 28.74±4.04°, respectively. Whereas for dried large cardamom capsules the values were found to be 11.113±0.92 mm, 0.56, 393.109±9.622 kg m-3 and 29.84±2.93°, respectively. The peak static coefficient of friction of freshly harvested large cardamom over mild steel, plywood and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Post Harvest Technology large cardamom; Spice crop; Physical properties; Mechanical properties. |
| Ano: 2013 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2018 |
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| Sabzi, Sajad; Javadikia, Payam; Rabbani, Hekmat; Adelkhani, Ali; Naderloo, Leila. |
| OranOrange has abundant nutritional properties and is consumed worldwide. Sorting oranges of different masses based on their physical traits could help reduce packaging and transportation cost. The ‘Blood’ cultivar of Iranian oranges from Kermanshah province of Iran (7.03 °E 4.22 °N) was used in this study. 100 samples were randomly selected. During the two-day experiment, all measurements were carried out inside the laboratory at mean temperature of 24°C. In this study, some physical properties of ‘Blood’ orange were measured, such as length, width, thickness, volume, mass, mean value of geometric diameter, sphericity and projected area. ANFIS and linear regression models were employed to predict the mass based on sphericity and mean of projected... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Linear regression; Orange; Packaging; Physical properties; Sorting. |
| Ano: 2013 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2348 |
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| Azadbakht, Mohsen; Ghajarjazi, Ehsan; Abdigaol, Farhad; Amiri, Emad. |
| In this research the effect of moisture at three levels (57, 67, and 77 %) on the physical properties of the Barkat bean variety including, including dimensions, geometric mean diameter, volume, sphericity index and the surface area was determined. And the influence of different moisture content levels (67,57 and 77%), in two loading orientation (longitudinal and transverse) and three loading speed (8,6 and 10 mm min-1) on the mechanical properties of the maximum deformation, rupture force, rupture energy, toughness and the power to break the broad bean was investigated. It was observed in the mechanical properties that moisture changes and loading speed were affective at 1% on rupture force, rupture energy, and toughness. Loading orientation was affective... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Broad bean; Physical properties; Mechanical properties.. |
| Ano: 2015 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3339 |
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| saberi moghadam, Mojtaba; Hassan-Beygi, Seyed reza; Aboonajmi, Mohammad. |
| Knowing the physical and mechanical properties is very important for automating the activities associated with the date pit. The objective of this study was to determine physical and mechanical properties of date pit of Mazafati cultivar as a function of moisture content. The physical properties of the pits were determined in the moisture content range of 7% to 40% (wb). The date pits was compressed along the width at 0.08, 0.46, 0.55 and 0.64 (db) moisture contents to determine required force, deformation, and energy per volume (toughness) at rupture point. The results showed that the greatest length, width, thickness were 24.43, 9.21, 7.15 mm, respectively at moisture content of 40 % (wb). With increase moisture from 7% to 40% (wb) the true density of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Date; Pit; Moisture content; Mazafati cultivar; Physical properties; Mechanical properties. |
| Ano: 2015 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3201 |
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| Registros recuperados: 73 | |
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