The cycling of atmospheric aerosols through clouds can change their chemical and physical properties and thus modify how aerosols affect cloud microphysics and, subsequently, precipitation and climate. Current knowledge about aerosol processing by clouds is rather limited to chemical reactions within water droplets in warm low-altitude clouds. However, in cold high-altitude cirrus clouds and an...

In cloud computing, applications are hosted, deployed, and delivered as services over the Internet. New cloud application services can be developed by tailoring existing ones, while hiding the complexity of the underlying implementation. Cloud applications may be able to adapt to changes in their environment, which should be secure and reliable. The infrastructure on which cloud applications ar...

Millimeter and mid-infrared observations have been made of the dense clumps of dust and gas and of young stellar objects (YSOs) associated with the bright, compact submillimeter source G79.3+0.3 P1 in the relatively nearby MSX infrared-dark cloud G79.3+0.3. The Gemini mid-infrared observations reported here indicate the presence of three YSOs within the cloud. BIMA 3 mm continuum observations s...

We present our diagnosis of the role massive stars play in the formation of lowand intermediate-mass stars in OB associations. In the bright-rimmed and comet-shaped clouds in both the OriOB1 and LacOB1 associations, there is compelling evidence of lowand intermediate-mass star formation dominated by the triggering process by the massive stars in the regions. The expanding ionization fronts from...

Signal formation in a microstructured semiconductor neutron detector is more complex than planar diode geometry. Three-dimensional microstructures are laterally smaller the ionization cloud length, and electric fields may be weak enough to exhibit plasma time effects. This work first detailed treatment of charge carrier motion these devices replicate profile signal magnitude. Simulations were p...

In this article cloud-point extraction (CPE) was used with chelating agent to extract uranium from aqueous solutions. The methodology used is based on the formation of metal complexes soluble in a micellar phase of surfactant. The metal ions complexes are then extracted into the surfactant-rich phase at a temperature above the cloud-point temperature. The effect of type of surfactants and ligan...

The observed correlation between global low cloud amount and the flux of high energy cosmic-rays supports the idea that ionization plays a crucial role in tropospheric cloud formation. We explore this idea quantitatively with a simple model of cosmic-ray ionization enhancement of the formation of cloud condensation nuclei. This model predicts that solar modulation of the cosmic-ray ionization r...

Aerosol particles are ubiquitous in the troposphere and exert an important influence on global climate and the environment. They affect climate through scattering, transmission, and absorption of radiation as well as by acting as nuclei for cloud formation. A significant fraction of the aerosol particle burden consists of minerals, and most of the remainder- whether natural or anthropogenic-con...

Cloud Computing is an emerging technology for processing and storing very large amounts of data. Sometimes, anomalies and defects affect a part of the Cloud infrastructure, resulting in a degradation in Cloud performance. This work uses the Taguchi method for the design of experiments to present a methodology for identifying the relationships between the various configuration parameters that af...

The distribution and evolution of reactive species in a boundary layer characterized by the presence of shallow cumulus over land is studied by means of two largeeddy simulation models: the NCAR and WUR codes. The study focuses on two physical processes that can influence the chemistry: the enhancement of the vertical transport by the buoyant convection associated with cloud formation and the p...