Results 261 to 270 of about 310,146 (310)

Vacuum drying characteristics of eggplants

Journal of Food Engineering, 2007
Abstract The vacuum drying characteristics of eggplant were investigated. Drying experiments were carried out at vacuum chamber pressures of 2.5, 5 and 10 kPa, and drying temperature ranging from 30 to 50 °C. The effects of drying pressure and temperature on the drying rate and drying shrinkage of the eggplant samples were evaluated.
Long Wu, Takahiro Orikasa, Yukiharu Ogawa, Akio Tagawa   +3 more
openaire   +1 more source

The Reciprocating Dry-Vacuum Pump

Transactions of the American Society of Mechanical Engineers, 1928
Abstract The paper is concerned with the number of strokes that must be made by a pump to produce a given pressure in a tank.. The theory of a vacuum pump with clearance is presented, and a formula is derived which gives the requisite number of strok.es and which involves the dead-end vacuum expressed as a fraction of a perfect vacuum ...
Walter S. Weeks, Pierre E. Letchworth
openaire   +1 more source

Freeze drying and vacuum drying

2023
Carlos Eduardo Orrego, Natalia Salgado, Luisa Fernanda Sarmiento   +2 more
openaire   +1 more source

Freeze drying - vacuum sublimation

Journal of Scientific Instruments, 1951
A short account is given of the principles involved in the dehydration of heat sensitive materials by sublimation from the frozen state. References are made to drying rates and important design features of commercial apparatus.
openaire   +1 more source

Vacuum drying

Vacuum, 1956
null E.W. Flosdorf, Samuel C. Tease
openaire   +1 more source

Intensified vacuum drying of antibiotics

Pharmaceutical Chemistry Journal, 1968
1. Drying of streptomycin under vacuum under dynamic or static conditions is completed in identical time; while drying of penicillin under dynamic conditions offers the possibility of intensifying drying about two-fold compared to static conditions. 2.
openaire   +1 more source

Vacuum-Drying and Cryopreservation of Prokaryotes

2007
Traditionally, the ex situ study of prokaryotes (members of Archaea and Bacteria) has required access to living cultures. Although it may be possible to maintain a small number of strains by serial transfer, such methods are not the best, particularly for long-term storage or for keeping a large collection. One of the major problems is dealing with the
openaire   +2 more sources

Practical Vacuum Drying

Industrial & Engineering Chemistry, 1938
R. C. Ernst, J. W. Ridgway, F. M. Tiller
openaire   +1 more source

Degradation mechanisms of perovskite solar cells under vacuum and one atmosphere of nitrogen

Nature Energy, 2021
Renjun Guo, Dan Han, Wei Chen
exaly  

Life-cycle assessment of an industrial direct air capture process based on temperature–vacuum swing adsorption

Nature Energy, 2021
Sarah Deutz, André Bardow
exaly