Results 261 to 270 of about 854,698 (296)

Gel particles from spray-dried disordered polysaccharides

Carbohydrate Polymers, 2009
The formation of gel particles from alginate and iota-carrageenan was studied through a novel pathway of formation via an amorphous spray-dried intermediate. Dried biopolymer particles were suspended in solutions of different Ca2+ concentration. Particle size ranges and microscopic observation demonstrated that a range of swelling behaviour could be ...
Burey, P, Bhandari, BR, Howes, T, Gidley, MJ   +3 more
openaire   +4 more sources

Production of Titanate Microspheres by Sol-Gel and Spray-Drying

Journal of Sol-Gel Science and Technology, 1998
Porous titanate precursor microspheres (20–60 μm in diameter), with a high sorption capacity for radioactive wastes from nuclear reprocessing plants, have been produced on a 50 kg scale by spray-drying precursor sols. Well-dispersed, stable sols were produced by hydrolyzing acetic acid modified tetraisopropyltitanate and peptizing the titania ...
Sizgek, E, Bartlett, J R, Brungs, M P
openaire   +2 more sources

Hot Spots in Organic Gel Spray Diffusion Flames

44th AIAA Aerospace Sciences Meeting and Exhibit, 2006
ठ** In the current paper a model of a Burke-Schumann-like organic gel spray diffusion flame is presented. Experimental evidence using an organic-based gellant has revealed that the main characteristic of the gel fuel droplet that distinguishes it from a purely liquid fuel droplet is the onset of pulsating evaporation once the environment of the gel ...
Alina Kunin, J.Barry Greenberg, Benny Natan   +2 more
openaire   +1 more source

Cell Patterning on Biological Gels via Cell Spraying through a Mask

Tissue Engineering, 2005
We present an easily applicable and inexpensive method for patterning cells on arbitrary surfaces including biological gels with little loss of viability or function. Single-cell suspensions of human umbilical vein endothelial cells and NIH 3T3 fibroblasts were sprayed with an off-the-shelf airbrush through a mask to create 100-microm scale patterns on
Yaakov, Nahmias, Abhinav, Arneja, Theodore T, Tower, Michael J, Renn, David J, Odde   +4 more
openaire   +2 more sources

Flavones as fluorogenic spray reagents for organothiophosphorus pesticides on silica gel layers

Journal of Chromatography A, 1971
Abstract A method is discussed for the detection and quantitative determination of organothiophosphorus pesticides by in situ fluorometry after separation on silica gel layers. Yellowish-green fluorescent spots are obtained when the plate is spraved with a 3-hydroxyflavone, such as robinetin, after bromination.
R W, Frei, V, Mallet, C, Pothier
openaire   +2 more sources

Capture and Evaluation of HVOF Thermal Sprayed Particles by a Gel Target

International Thermal Spray Conference, 2001
Abstract A new method to capture and evaluate the condition of thermal sprayed particles has been developed by using an agar gel target. HVOF sprayed Hastelloy C particles were collected by a gel target placed at the substrate position, i.e., 380mm downstream from the spray nozzle exit.
H. Yamada, H. Yumoto, S. Kuroda, T. Fukushima   +3 more
openaire   +1 more source

Sol-Gel Synthesis and Spray Granulation of Porous Titania Powder

Chemie Ingenieur Technik, 2001
Bimodally porous titania powders with controlled phase composition and porosity made by wet chemical processes have been extensively investigated in our laboratory. This paper reviews experimental parameters affecting the phase and pore structure of these powders.
Jinsoo Kim, Ki-Chang Song, Oliver Wilhelm, Sotiris E. Pratsinis   +3 more
openaire   +1 more source

[Candy sprays and -gels: effect on salivary flow and pH].

Nederlands tijdschrift voor tandheelkunde, 2006
After seeing a child with dental erosion in a pediatric dental clinic the fondness and use of sweets were asked. With a questionnaire it became clear that recently various candy sprays and -gels are available to keep a sweet and fresh taste in the mouth at school.
D L, Gambon, P A M, van den Keijbus, A Nieuw, van Amerongen   +2 more
openaire   +1 more source

On the behaviour of organic gel multi-size spray diffusion flames

Combustion Theory and Modelling, 2008
The recently reported, experimentally observed, unusual behaviour of organic gellant-based fuel droplets which, under appropriate ambient thermal conditions, evaporate and burn in an oscillatory fashion is incorporated in a phenomenological manner in a model of a two-dimensional arbitrary multi-size spray diffusion flame.
A. Kunin, J. B. Greenberg, B. Natan
openaire   +1 more source

A Model of Organic Gel Spray Diffusion Flames with Droplet Drag

45th AIAA Aerospace Sciences Meeting and Exhibit, 2007
A new model of an organic gel spray diffusion flame is presented in which finite droplet drag is accounted for. The phenomenological onset of oscillatory droplet evaporation once the environment of the gel droplets reaches some critical temperature is incorporated in the model.
openaire   +1 more source