N. Leigh Anderson Molecular Anatomy Program Division of Biological and Medical Research Argonne National Laboratory Argonne, Illinois 60439 Received June 6,1979 SUMMARY: Using the technique of thermal denaturation in a temperature gradient followed by two-dimensional gel electrophoresis of the fractions, the thermostabilities of the cytoplasmic actins have been investigated. Addition of 5 mM Mg...

We have constructed microfabricated devices, designed to have asymmetry in their physical structures, in order to fractionate objects under continuous-flow conditions. The fractionation of particles with the inclusion of diffusion and asymmetric structures requires a knowledge of not only statistical mechanics but also the external forces acting on the particles, since thermal Brownian fluctuat...

We study the Soret effect of charged polystyrene particles as a function of temperature and electrolyte composition. As a main result we find that the Soret coefficient is determined by charge effects, and that non-ionic contributions are small. In view of the well-known electric-double layer interactions, our thermal field-flow fractionation data lead us to the conclusion that the Soret effect...

Sludge minimization by thermal treatment within activated sludge process was investigated at pilot scale. A 90°C treatment was set up in the return activated sludge loop. When keeping apparent sludge age at 15 days, 90°C treatment decreased sludge production by 30.4%. However, effluent quality was altered. A sludge minimization ASM1 based model was set up and calibrated against experimental dat...

Recent studies have shown that shockwave heating and millisecond boiling in high-intensity focused ultrasound fields can result in mechanical fractionation or emulsification of tissue, termed boiling histotripsy. Visual observations of the change in color and contents indicated that the degree of thermal damage in the emulsified lesions can be controlled by varying the parameters of the exposur...

Experiments were continued to study the physical nature of drift motion SF 6 molecules under action radiation from a repetitively pulsed CO 2 -laser. To explain effect, such phenomena as change in transport cross-section during laser excitation molecules, phenomenon optical tweezers, thermal diffusion are considered. However, most reasonable explanation this effect is fractionation gas mixture ...

conclusions as a result of the full range uv-vis scanning of the responsible band in the hptlc experiments (200-700 nm), the flavonoid was the most imaginable natural compound. results through the bioassay guided fractionation method, the greatest antibacterial activities were related to the n-hexane extract. it was also revealed that the effective anti-mrsa agent of the assessed plant was a re...

When designing the cement slurry for casing string cementing in geothermal boreholes, appropriate thermal conductivity is selected. In zone of water, where energy collected, used, from which sheath has high conductivity. On other hand, remaining part opening sealed with slurry, will reduce losses through insulation. Cement insulation includes light insulating materials. However, use such additi...