نتایج جستجو برای: prism simulations

تعداد نتایج: 247442  

2013
Tony Tsang

Long Term Evolution (LTE) has been proposed as a promising radio access technology to bring higher peak data rates and better spectral efficiency. However, scheduling and resource allocation in LTE still face huge design challenges due to their complexity. In this paper, the optimization problem of scheduling and resource allocation for separate streams is first formulated. By separating stream...

2012
Sandeep Chakraborty

The pathways of proton abstraction (PA), a key aspect of most catalytic reactions, is often controversial and highly debated. Ultrahigh-resolution diffraction studies, molecular dynamics, quantum mechanics and molecular mechanic simulations are often adopted to gain insights in the PA mechanisms in enzymes. These methods require expertise and effort to setup and can be computationally intensive...

2002
Gethin Norman David Parker Marta Z. Kwiatkowska Sandeep K. Shukla Rajesh K. Gupta

We have shown in the past that competitive analysis based power management strategies can be automatically analyzed for proving competitive bounds and for validating power management strategies using the SMV model checker. In this paper, we show that stochastic modelling based strategies for power management can similarly be automated for computing optimal strategies. Further, these can be anal...

Journal: :Philosophical transactions. Series A, Mathematical, physical, and engineering sciences 2009
Harry J Dowsett Mark A Chandler Marci M Robinson

The Mid-Pliocene is the most recent interval in the Earth's history to have experienced warming of the magnitude predicted for the second half of the twenty-first century and is, therefore, a possible analogue for future climate conditions. With continents basically in their current positions and atmospheric CO2 similar to early twenty-first century values, the cause of Mid-Pliocene warmth rema...

ژورنال: پژوهنده 2008
طباطبایی, دکتر سید احمد, محکم, دکتر معصومه, معین آرا, دکتر راهله,

سابقه و هدف: سیستم های رتبه بندی برای تصمیم گیری در مورد اولویت ها و ارزیابی عملکرد یک واحد مراقبت ویژه کودکان بسیار مفید هستند. از جمله سیستم هایی که می توان به آن اشاره کرد معیارهای III- PRISM و PIM هستند که امروزه در اکثر مراکز مراقبت های ویژه کودکان جهت ارزیابی کیفی و کمی عملکرد آن مرکز استفاده می شوند. هدف از این تحقیق تعیین پیش آگهی بیماران بستری در بخش مراقبت های ویژه کودکان بیمارستان مف...

Journal: :Physical review. E, Statistical, nonlinear, and soft matter physics 2007
Thomas Vettorel Hendrik Meyer Jörg Baschnagel Matthias Fuchs

We present results from constant pressure molecular-dynamics simulations for a bead-spring model of a crystallizable polymer melt. Our model has two main features, a chemically realistic intrachain rigidity and a purely repulsive interaction between nonbonded monomers. By means of intrachain and interchain structure factors we explore polymer conformation and melt structure above and below the ...

Journal: :Optometry and vision science : official publication of the American Academy of Optometry 1994
W L Larson J Faubert

PURPOSE The latency of adaptation of the human vergence system to a change in convergence or divergence forced upon it by a prism was investigated in this pilot study. METHODS Adaptation was stimulated by a 5-s period of binocular vision through a prism of 0 delta, -8 delta, or 8 delta. Immediately thereafter and for a further period of 45 s, lateral heterophoria was monitored subjectively by...

Journal: :Current Biology 1999
Patricia M Riddell Anna M Horwood Sheila M Houston Judy E Turner

Previous research has suggested that infants are unable to make a corrective eye movement in response to a small base-out prism placed in front of one eye before 14-16 weeks [1]. Three hypotheses have been proposed to explain this early inability, and each of these makes different predictions for the time of onset of a response to a larger prism. The first proposes that infants have a 'degraded...

Journal: :Lab on a chip 2011
S Xiong A Q Liu L K Chin Y Yang

This paper presents a tunable optofluidic prism based on the configuration of two laminar flow streams with different refractive indices in a triangular chamber. The chambers with 70° and 90° apex angles are designed based on simulation results, which provide the optimum working range and avoid recirculating flows in the chambers. In addition, a hydrodynamic model has been developed to predict ...

2016
Eli Peli Alex R. Bowers Karen Keeney Jae-Hyun Jung

PURPOSE Horizontal peripheral prisms for hemianopia provide field expansion above and below the horizontal meridian; however, there is a vertical gap leaving the central area (important for driving) without expansion. In the oblique design, tilting the bases of both prism segments toward the horizontal meridian moves the field expansion area vertically and centrally (closing the central gap) wh...

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