نتایج جستجو برای: drying rate
تعداد نتایج: 981879 فیلتر نتایج به سال:
We report a simulation study on competition between cracking and peeling, in a layer of clay on desiccation and how this is affected by the rate of drying, as well as the roughness of the substrate. The system is based on a simple 2-dimensional spring model. A vertical section through the layer with finite thickness is represented by a rectangular array of nodes connected by linear springs on a...
The pretreatment of 7- and 10-year-old Acacia mangium wood using incision, forced-air dying, pressure were conducted to evaluate the effects on wet pockets, drying rate, defects. Quarter rift sawn boards used in this study. Results showed that incidence pockets incised, drying, pressure-treated quarter 7-year-old A. alleviated up 35% 79%, 60% 54%, 54% 82%, respectively. In mangium, occurrence w...
Porous medium vacuum drying is a complicated heat and mass transfer process. Based on the theory of heat and mass transfer, a coupled model for the porous medium vacuum drying process is constructed. The model is implemented and solved using COMSOL software. The water evaporation rate is determined using a nonequilibrium method with the rate constant parameter Kr. Kr values of 1, 10, 1000, and ...
The objectives of this work were to develop a new technique for lycopene microencapsulation by spray drying using dehumidified air as drying medium and to determine optimum operating conditions. A two-step optimization procedure was used. The encapsulation variables were selected in accordance with the PlackettBurman experimental design and were further optimized via response surface methodolog...
Freeze-dried spermatozoa are capable of participating in normal embryonic development after injection into oocytes and thus useful for the maintenance of genetic materials. We recently reported that long-term preservation of freeze-dried mouse spermatozoa by conventional methods requires temperatures lower than -80 degrees C. Successful permanent preservation of mouse spermatozoa at much higher...
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