Galai

Galai Dynamic Shape Analyzer DSA-10 is a complete shape characterization system for particles in motion. All particles are classified by maximum and minimum diameters, area and perimeter, aspect ratio, shape factor and more. A video microscope camera synchronized with a strobe light takes still pictures continuously of particles in dynamic flow, generating shape information on tens of thousands of particles, in the 1 to 6,000 pm range in minutes. 

Galai CIS-1000 is an on-line particle size analyzer. A bypass from the process line feeds the sample into the sensor unit where it is sized and either drained off or fed back to the line. Full compatibility with the laboratory instrument is maintained since it uses the identical combination of laser-based time-of-transit particle sizing using the 1001 sensor and dynamic shape analysis using the 1002 sensor. The size range covered is from 2 pm to 3600 pm with measurement of size, area, volume, shape, concentration and estimated surface area with a cycling time of 300 s. 

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Fig. 12. Schematic representation of the Galai particle size analyzer showing both the laser-based time-of-flight sizing equipment and the television camera...

Fig. 9.9 The laser optic measuring system of the Galai Particle Analyzer.

Galai Production, PO Box 221, industrial Zone, Migdal, Haemek 10500, Israel, 972-654 3369... 

Fig. 6 The Galai particle-size analyzer uses a laser beam and a rotating wedge prism to measure the size of fine particles by the length of time the fine particle blocks the light reaching the photodetector. (A) Basic layout of the Galai instrument (B) the laser beam traces a circular path within the sample cell, and the logic of the instrument rejects any particles that are off-center or out of focus (C) the length of time that the laser beam is blocked is related to the size of the fine particle. (From Ref...

Technical Literature Available from Galai Production Limited, Industrial Zone, 10500, Migdal, Haemek, Israel. 

All the samples were characterized using conventional methods X-ray diffraction (Rigaku, D-Max IIIB), UV-VIS (Shimadzu 240), FTIR (Perkin-Elmer 1760), EDX (JEOL-5200), SEM (Philips Model 525), Cyclic voltammetry (Rikadenki), DTA-TGA (Dupont, 951), Particle size analyzer (Galai CIS-100), BET surface areas (350-450 m /g). Chemical analysis was obtained by atomic absorption (AAS) after solubilization of the samples in HF-HCl solutions. It was ascertained that the samples were free of any phase impurity and are catalytically active. 

Tubular Supercentrifuge Continuous Batch manual Zero To 1,200 galAi... 

Figure 3. Pints of mean particle size versus standard deviation of two prepared mixtures of standards analyzed by selected automated electronic particle size analysers (from Syvitski et al 1991a). The expected value is shown with a black box. S SediGraph C. Coulter Counter M Malvern laser panicle. sizer G Galai CIS-1, L Lumosed photosedimentometer lA Image analysis (Syvitski et al.. 1991a).

Figure 7. Basics of the Galai CIS panicle si/c-shape equipment (modilied from Galai Ltd., 1989).

The advantages of the Galai equipment are similar to those described above for the electroresistance analyzers (e.g., small sample size, rapid analysis) pins the problems associated with coincidence and orifice clogging are also avoided. Analyses can be run until either a specified number of particles are counted (generally >200,000) or until a desired level of confidence in the distribution is reached (95%, 98% or 99%). Because the solution in which the particles are suspended does not have to be either aqneous nor... 

Galai CIS Particle Size Analyzer A sizing instrument based on the amount of time a... 

S. Sanchez-Segado, F.j. Alguacil, F. Tomas-Alonso, and S. Galai... 

This work was partially supported by the CICYT ENE20II-25188 and SENECA Foundation 15260/PI/10 grants. Said Galai has a fellowship from Erasmus Mundus EU Mare Nostrum Program at the University of Murcia. 

Crouhy, Michel, Galai, Dan, and Mark, Robert, The Essentials of Risk Management, 2nd ed., McGraw-Hill, New York, 2014. 

Grouhy, Michel, Dan Galai, and Robert Mark. The Essentials of Risk Management. New York McGraw-HiU, 2006. The authors, corporate governance experts, provide a clear, well-written text about the field. 

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