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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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| Eghbali, Milad; Mirzaee - Ghaleh, Esmaeil; Lorestani, Ali Nejat; Rabbani, Hekmat; Khoramivafa, Mahmud. |
| Soil plays an important role in the sustainability of ecosystems. In recent years, the increasing growth in the degradation of soil resources has drawn attention to management strategies for maintaining the soil quality. Researchers have recently studied the impact of using biochar on physical and chemical properties of soil. It has been found that adding biochar improves the soil quality. Some factors such as pyrolysis chamber conditions, pyrolysis peak temperature and air flow rate affect the physical and chemical properties of biochar including the density, pH, ash content, and so on. In this study, the effect of changes in the air flow rate and chamber temperature in the fixed-bed oxidative pyrolysis on the biochar yield, ash content, density and pH... |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 2021 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/6419 |
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| Zareishahamat, Ebrahim; Abdollah pour, Samsollah; Maysami, Mohammadali; Lorestani, Ali Nejat. |
| The present study was conducted in response to the lack of information on effects of cultivar and harvesting time on nutritional value of barley grown in Iran. The objective of this study was to determine the detailed chemical composition of barley in different cultivar and harvesting time and predict the nutrient composition. Three barley cultivars (Ansar, Abidar and Sahand), were harvested at two stages of growth (ripening of grain GS-91 and forage barley GS-83) and nutrition indices of treatments were determined in the advanced nutrition lab. The results of analysis showed that the effect of harvesting time and cultivar were significant on minerals and crude protein of barley, also the effect of harvesting time was significant on gross energy and crud... |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 2019 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5410 |
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