Abstract. The impact of molecular level surface chemistry for aerosol water-uptake and droplet growth is not well understood. In this work, spherical, nonporous, monodisperse polystyrene latex (PSL) particles treated with different functional groups are exploited to isolate the effects activation. PSL effectively water insoluble changes in particle may be considered a critical factor initial up...

In this study, the microscopic pore characteristics of shale in marine strata are evaluated. Based on field emission scanning electron microscopy (FE-SEM), low-temperature N 2 adsorption (LT-N GA), low-pressure CO (LP-CO GA) and high-pressure methane (HPMA) experiments, 12 shales from Wufeng–Longmaxi Formations northern Yunnan Guizhou characterized qualitatively quantitatively. Fractal Frenkel–...

TO THE EDITOR: Many thanks to Dr. Joseph (1) for requesting clarification of methods used to measure metabolic rate of the rodent in our recent study (3). Measurements of V̇O2 and V̇CO2 in the rat do indeed require a great deal of precision, given that the differences between inspired and expired fractions of O2 and CO2 are very small. Dr. Joseph’s letter highlights some very important potential ...

Mixed model methodology is a tool of choice for analyzing correlated data in a large domain of disciplines and areas of application. Censored data are not rare in practice and they may cause serious defects in the estimation of parameters when not properly accounted for in the statistical analysis. A frequent phenomenon, which generates censored data, lies in the existence of limits of detectio...

data of this kind have not yet been reported. Tyler's statement concerning poor spatial resolution in the chromatic channels does not seem to add much to our understanding of these effects, especially given his comment that "large receptive fields could also occur in the achromatic channels." He is correct in predicting achromatic aftereffects. As yet unpublished data from several laboratories ...

‘‘Tunable’’ fluids such as magnetorheological ~MR! and electrorheological ~ER! fluids are comprised of paramagnetic or dielectric particles suspended in a low-viscosity liquid. Upon the application of a magnetic or electric field, these fluids display a dramatic, reversible, and rapid increase of the viscosity. This change in viscosity can, in fact, be tuned by varying the applied field, hence ...

9. Youdin M, Barker J, Reich T: Gamma attenuation of scalp and skull from thickness measured ultrasonically. Proc Wrld Fed Ultrasound Med Biol, No 1124, San Francisco, 1976 10. Volk W: Goodness-of-fit. In: Applied Statistics for Engineers. New York, McGraw Hill, 99-106, 1969 11. Obrist WD, Thompson HK Jr, King CH, et al: Determination of regional cerebral blood flow by inhalation of 133-Xe. Cir...

Abstract In the current investigation, an efficient low-cost nano-scaled material was prepared from waste avocado seeds (NASs) and employed as a sustainable nanosorbent for removal of hexavalent chromium ions. The adsorption surface characteristics with respect to availability functional groups, basic component elements, structural properties NASs were achieved by different techniques. Analysis...

Background and Objectives: Food wastes are sometimes valuable; of which, seeds are significantly important. Grape seeds, as byproduct of grape processing, contain valuable substances for the production of advanced oils as well as feeds. Therefore, the major aim of this study was to assess moisture sorption isotherms of black grape seeds at various conditions. Materials and Methods: Moisture so...

Several complementary experimental and theoretical methodologies were used to explore water uptake on sodium chloride (NaCl) particles containing varying amounts of sodium dodecyl sulfate (SDS) to elucidate the interaction of water with well-defined, environmentally relevant surfaces. Experiments probed the hygroscopic growth of mixed SDS/NaCl nanoparticles that were generated by electrosprayin...