نتایج جستجو برای: physics evoked cloud method

تعداد نتایج: 1912338  

Journal: :Applied sciences 2023

Cloud computing is a prominent approach for complex scientific and business workflow applications in the pay-as-you-go model. Workflow scheduling poses challenge cloud due to its widespread physics, astronomy, bioinformatics, healthcare, etc. Resource allocation problematic computationally intensive nature of workflow, interdependence tasks, heterogeneity resources. During resource allocation, ...

2004
A. D. Del Genio

Single Column Model (SCM) versions of parent general circulation models (GCMs), accompanied by cloud-resolving models (CRMs) that crudely resolve cloud-scale dynamics, have increasingly been used to simulate limited time periods of observations, driven not so much by specific science questions but by the availability of field experiment data or enhanced soundings during Intensive Observation Pe...

2002
Paul Heinzlreiter Gerhard Kurka Jens Volkert

Rendering realistic cloud images is a challenging computational intensive task. The high computational demand makes physics-based on-the-fly rendering impossible for realtime applications on low-cost workstations. We present an approach to overcome this problem by using alpha-blended billboard textures. During a pre-processing step a series of pre-calculated images is generated for each cloud o...

2005
Daniel K. Zhou William L. Smith Xu Liu Allen M. Larar Hung-Lung A. Huang Jun Li Matthew J. McGill Stephen A. Mango

[1] High-resolution infrared radiance spectra obtained from near nadir observations provide atmospheric, surface, and cloud property information. A fast radiative transfer model, including cloud effects, is used for atmospheric profile and cloud parameter retrieval. The retrieval algorithm is presented along with its application to recent field experiment data from the NPOESS Airborne Sounder T...

1999
A. S. Tremsin O. H. W. Siegmund

The measurements of the electron cloud footprints produced by a stack of microchannel plates ~MCPs! as a function of gain, MCP-to-readout distance and accelerating electric field are presented. To investigate the charge footprint variation, we introduce a ballistic model of the charge cloud propagation based on the energy and angular distribution at the MCP output. We also simulate the Coulomb ...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2013
Tomi Raatikainen Athanasios Nenes John H Seinfeld Ricardo Morales Richard H Moore Terry L Lathem Sara Lance Luz T Padró Jack J Lin Kate M Cerully Aikaterini Bougiatioti Julie Cozic Christopher R Ruehl Patrick Y Chuang Bruce E Anderson Richard C Flagan Haflidi Jonsson Nikos Mihalopoulos James N Smith

Cloud droplet formation depends on the condensation of water vapor on ambient aerosols, the rate of which is strongly affected by the kinetics of water uptake as expressed by the condensation (or mass accommodation) coefficient, αc. Estimates of αc for droplet growth from activation of ambient particles vary considerably and represent a critical source of uncertainty in estimates of global clou...

Farzaneh Bastami Mohammad Alimoradi Mohammad Hosseini, Rouhollah Heydari

In this study, a simple and low-cost method was developed for extraction and pre-concentration of brilliant blue(BB) and Tropaeolin O(TO) in food samples using cloud point extraction (CPE) prior to spectrophotometric determination. The effects of main factors such as pH, surfactant and salt concentrations, incubation time and temperature on the cloud point extraction of both dyes were investiga...

2007
MARIO A. LOPEZ DENNIS L. HARTMANN PETER N. BLOSSEY ROBERT WOOD CHRISTOPHER S. BRETHERTON TERENCE L. KUBAR

A methodology is described for testing the simulation of tropical convective clouds by models through comparison with observations of clouds and precipitation from earth-orbiting satellites. Clouds are divided into categories that represent convective cores: moderately thick anvil clouds and thin high clouds. Fractional abundances of these clouds are computed as a function of rain rate. A three...

2016
Mingwei Lin Zhiqiang Yao Fei Gao Yang Li

Cloud computing platforms are complex system, which consist of a lot of software working together. Because of software defects, cloud computing platforms may has performance anomaly during runtime. In this paper, a data-driven anomaly detection method is proposed to monitor runtime performance for cloud computing platforms. The proposed method can not only detect the performance anomaly of clou...

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