نتایج جستجو برای: drying effective efficiency

تعداد نتایج: 1058855  

2014
Fei Yin Shiyan Guo Yong Gan Xinxin Zhang

In this work, an ultrasonic spray freeze-drying (USFD) technique was used to prepare a stable liposomal dry powder for transdermal delivery of recombinant human epithelial growth factor (rhEGF). Morphology, particle size, entrapment efficiency, in vitro release, and skin permeability were systematically compared between rhEGF liposomal dry powder prepared using USFD and that prepared using a co...

M. Tanhaei, V. Mohammady

Sol–gel chemistry is an efficient tool to control the morphology and reactivity of solids. Drying is the crucial step due to the capillary forces exerted during the classic ambient drying process, which induces the collapse of the wet gel porosity. The use of N, N-dimethylformamide (DMF), a newly found DCCA were found to be effective in the sol–gel synthesis of crack-free silica gel monolith fr...

2015

The effects of pretreatment solution (dipping in boiling water, salty boiling water, ethil oleat) were studied on drying kinetic of sour cherry. The thin-layer drying of sour cherries were carried out at three air temperatures of 50, 60 and 70°C and airflow velocity of 1 m/s. The experimental data were fitted to several thin-layer drying models such as Newton, Henderson and Pabis, Page, Logarit...

Journal: :E3S web of conferences 2023

This article presents the results of experimental studies main thermal characteristics a solar collector, heated air duct an indirect type drying plant for agricultural products. The temperature measurement at lower, middle and upper parts entrance output heater different radiation intensities during day in periods month city Tashkent are given. calculation volume flow through heater, specific ...

2017
Mejdi Jeguirim Antonis A. Zorpas Lionel Limousy

Olive Mill Wastewater (OMWW) treatment is considered to be one of the main challenges that Mediterranean countries face. Although several procedures and technologies are mentioned in the literature, these techniques have several disadvantages or have been limited to laboratory pilot validation without posterior industrial projection. Recently, an advanced environmental friendly strategy for the...

پایان نامه :0 1374

the rationale behind the present study is that particular learning strategies produce more effective results when applied together. the present study tried to investigate the efficiency of the semantic-context strategy alone with a technique called, keyword method. to clarify the point, the current study seeked to find answer to the following question: are the keyword and semantic-context metho...

2015
Ernest Ekow Abano Robert Sarpong Amoah

The effect of microwave and blanch pretreatments on the drying kinetics and quality of white yam (Dioscorea rotundata) was investigated. Yam cubes destined for hot air drying at temperatures 70-90°C were predried in a domestic microwave or blanched in hot water for 1-5 min. Microwave pretreatment time had a positive significant effect on drying rate but both pretreatments had a negative influen...

2009
Ido Seginer Markus Bux

Modelling solar drying rate of waste-water sludge Ido Seginer* and Markus Bux 1 Civil and Environmental Engineering, Technion, Haifa, Israel 2 Agricultural Engineering, University of Hohenheim, Germany *Corresponding author. Fax: 972 4 829 5696; E-mail: [email protected] Efficient solar drying requires that the drying rate is quantitatively known as a function of the environment and th...

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