نتایج جستجو برای: drying of springs

تعداد نتایج: 21166184  

ترابی, رضا, جعفری, غلامرضا, واشقانی فراهانی, سهیل,

In this study, drying process is modeled in porous media using random walk theory. In this line, first the effect of microscopic quantities derived from random walk theory has been studied on drying rate. Then, the relationship between drying rate and moisture content is obtained taking convection into account. The results obtained in this study indicates the effect of convection on the process...

Journal: :journal of agricultural science and technology 2012
l. momenzadeh a. zomorodian d. mowla

drying characteristics of green pea (pisum satium) with an initial moisture content of 76% (db) was studied in a fluidized bed dryer assisted by microwave heating. four drying air temperatures (30, 40, 50 and 60ºc) and five microwave powers (180, 360, 540, 720 and 900w) were adopted. several experiments were conducted to obtain data for sample moisture content versus drying time. the results sh...

ژورنال: علوم آب و خاک 2009
زمردیان, علی, مرادی, مهدی,

In this work, a cabinet solar dryer for thin layer drying of Cuminum cyminum was evaluated in two conditions (Indirect and Mixed). Four levels of drying air flow rates (three active and one passive) were adopted. The experiments were performed in a completely randomized Block design pattern in three replications. Drying durations were kept constant (90 min) for all the experiments. Average init...

Journal: Journal of Herbal Drugs 2019
Hasan Nourafcan, Somayeh Nazirzadeh Taleb Ghabaei,

Background & Aim: The genus Echinacea (family Asteraceae), commonly known as purple coneflower, is an important medicinal plant that has been used for centuries, customarily as a treatment for the common cold, coughs, bronchitis, upper respiratory infections, and some inflammatory conditions . The present study was carried out to evaluate the effect of six different methods of ...

Journal: :international journal of advanced biological and biomedical research 2014
mahboobeh hosseini yaghoob mansoori ahmad mostaan ahmad rajaee

objective: button mushrooms (agaricus bisporus) are among the most widely produced and consumed mushrooms in the world. generally speaking, mushrooms are of great nutritional value, which due to their high content of moisture and their corruptibility particular attention is required to be paid to their conservation and health. drying is one of the most important ways to preserve the yields with...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2015
mića vukić jelena janevski goran vučković branislav stojanović aleksandar petrović

in this paper, experimental data on the drying kinetics of corn in a packed and fluidized bed are presented. experimental research was conducted on a laboratory apparatus. corn was used as a material because of its significance in agriculture and the food industry. an analysis of the influence of the operational parameters (the drying medium velocity i. e. the fluidization number, the drying me...

Journal: :Applied and environmental microbiology 1999
R S Redman A Litvintseva K B Sheehan J M Henson R Rodriguez

Geothermal soils near Amphitheater Springs in Yellowstone National Park were characterized by high temperatures (up to 70 degrees C), high heavy metal content, low pH values (down to pH 2.7), sparse vegetation, and limited organic carbon. From these soils we cultured 16 fungal species. Two of these species were thermophilic, and six were thermotolerant. We cultured only three of these species f...

Journal: :international journal of robotics 0
alireza hadi university of tehran majid m. moghaddam tarbiat modares university amin tohidi tarbiat modares university

in this paper the design of a biped robot actuated with shape memory alloy (sma) springs with minimum degrees of freedom is presented. sma springs are a class of smart materials that are known for their high power to mass and volume ratios. it was shown that utilizing spring type of smas have many advantages as large deformation, smooth motion, silent and clean movement compared to ordinary typ...

Journal: :مهندسی بیوسیستم ایران 0
امین نصیری دانشجوی دکتری، دانشکدۀ مهندسی و فناوری کشاورزی، دانشگاه تهران حسین مبلی استاد، دانشکدۀ مهندسی و فناوری کشاورزی، دانشگاه تهران شاهین رفیعی استاد، دانشکدۀ مهندسی و فناوری کشاورزی، دانشگاه تهران کرامت اله رضائی تیره شبانکاره استاد، دانشکدۀ مهندسی و فناوری کشاورزی، دانشگاه تهران

rating medicinal plants based on the total number of drug shows that the mint plant species, withgeneral name mentha, among the most consumption herbs that are used in various industries such aspharmaceutical, food, cosmetics and health. drying process, in order to maintain the quality andquantity of essential oil extraction have a great role in the processing medicinal plants. importantaspects...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2004
akbar k.haghi d. rondot

leather manufacturing involves a crucial energy-intensive drying stage in the finishing process to remove its residual moisture. determining drying characteristics of leather is vitally important so as to optimize the drying stage. this paper describes an analytical way for determination of the drying characteristics of leather. the model presented, is based on fundamental heat and mass transfe...

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