نتایج جستجو برای: geometric mean diameter and sphericity

تعداد نتایج: 16863704  

A Mehrafarin, MR Labbafi, E Zand , H Naghdi Badi , H Rafiee , M Ghorbani Nohooji , M Tavakoli ,

Background: The seeds of some medicinal plants and their compounds have long been valued for their numerous health benefits. Objective:To investigate some physical and chemical properties of Salvia spp. Methods: Some physico-chemical properties in five species of Salvia seeds (consisted of S. officinalis L., S. macrosiphon L., S. hypoleuca L., S. sclarea L. and S. nemorosa L.) were measured ...

Journal: :فصلنامه علمی پژوهشی گیاهان دارویی 0
m tavakoli 1- cultivation & development department of medicinal plants research center, institute of medicinal plants, acecr, karaj, iran h naghdi badi 1- cultivation & development department of medicinal plants research center, institute of medicinal plants, acecr, karaj, iran h rafiee department of horticulture, science and research branch, islamic azad university, tehran, iran mr labbafi 1- cultivation & development department of medicinal plants research center, institute of medicinal plants, acecr, karaj, iran m ghorbani nohooji 1- cultivation & development department of medicinal plants research center, institute of medicinal plants, acecr, karaj, iran e zand weed research department, iranian plant protection research institute, tehran, iran

background: the seeds of some medicinal plants and their compounds have long been valued for their numerous health benefits. objective:to investigate some physical and chemical properties of salvia spp. methods: some physico-chemical properties in five species of salvia seeds (consisted of s. officinalis l., s. macrosiphon l., s. hypoleuca l., s. sclarea l. and s. nemorosa l.) were measured at ...

Journal: :پژوهش های علوم و صنایع غذایی ایران 0
h. safiyari a. zomorodian h. rahmanian f. salmanizade

physical properties are often required for designing post harvest handling and processing equipment for agricultural products. persimmon (khormandy cultivar) is rich in vitamin a, calcium, potassium, tannic acid and antioxidant phenolic compounds. in this study changes in the physical properties of persimmon fruit during storage were studied. properties such as fruit dimensions, mass, geometric...

Journal: :مهندسی بیوسیستم ایران 0
مهدی کرامت جهرمی شاهین رفیعی علی جعفری سیدسعید محتسبی رضا میراشه

as a first step towards mechanization related to any product, including date fruit, it is necessary to have comprehensive information about the product. physical and mechanical properties are needed for the design of post harvest machinery and equipment. the objective of this study was to determine and compare some physical properties such as dimension, mass and volume, particulate density, pit...

Journal: :journal of agricultural science and technology 2009
s.a.m razavi s. yeganehzad a. sadeghi

physical properties of four common iranian varieties of canola seeds (hyola, okapi, orient and slm) were evaluated as a function of their moisture contents. the average seed length and thousand seed mass varied linearly from 1.925 to 2.262 mm and from 3.06 to 4.84 g, respectively. the average diameter, geometric mean diameter, and sphericity varied non-linearly from 1.475 to 1.911 mm, 1.625 to ...

Journal: :پژوهش های علوم و صنایع غذایی ایران 0
s.m.a(pages 53-61) razavi s. yeghanehzad a.r. sadeghi sh. ebrahimzadeh a. niazmand

in this study, geometrical, gravimetrical and frictional properties of four common varieties of iranian canola seeds (namely: slm, hyola, okapi, orient), containing the mean moisture value of 6.5% (w.b.) were investigated. geometrical and gravimetrical properties included length, diameter, geometric mean diameter, sphericity, thousand seed mass, volume, true density, bulk density and porosity. ...

Journal: :journal of agricultural science and technology 2011
n. aghajani e. ansaripour m. kashaninejad

in this article, the size, dimensions, volume, bulk and particle densities, empyting and filling angles of repose and friction coefficients against different surfaces were evaluated for two varieties of barley, sahra and valfajr, as a function of moisture content in the range of 10.12 to 42.17 (w.b.%). most physical properties of barley varieties were significantly affected by moisture content ...

Journal: :environmental resources research 2013
hamid reza asgari

the rehabilitation of sandy desertified land in various dryland ecosystems by different management practices has a great potential to increase aggregate stability and improve soil quality. however, plants in general may have a different ability to sustain soil. the objective was to determine the effects of reclamation practices including haloxylon ammodendron and atriplex canescens plantation o...

Journal: :ماشین های کشاورزی 0
مازیار فیض اله زاده علی محمد نیکبخت اسعد مدرس مطلق

safflower is a strategic plant regarding to its valuable nutrition value (45% extractable oil) and industrial uses. due to massive import of edible oil to the country as well as high potential for safflower cultivation, the research on production of safflower for oil extrusion purpose is of remarkable importance. the design of various processing and oil extraction units and also their optimizat...

Journal: :مهندسی بیوسیستم ایران 0
سیدمهدی غائبی کارشناسی ارشد، دانشگاه تهران سیدرضا حسن بیگی بیدگلی دانشیار، دانشگاه تهران محمدحسین کیانمهر دانشیار، دانشگاه تهران

iran is believed to occupy the second place, following turkey, among the apricot producing countries in the world. iran is faced with problems in export of apricot due to little or non-observance of drying principals and inattention to world market requirements. the physical and mechanical properties of agricultural products are the most needed and important parameters for design and developmen...

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