نتایج جستجو برای: enhancement factor

تعداد نتایج: 960802  

Journal: :Journal of cognitive enhancement 2022

Abstract Due to ongoing technological innovations, self-enhancement methods are publicly discussed, researched from different perspectives, and part of ethical debates. However, only few studies investigated the acceptance these its relationship with personality traits values. The present study what extent people accept enhancement whether can be predicted by Big Five Dark Triad traits, vulnera...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه یزد - دانشکده ادبیات 1394

. تدریس دستور زبان از دیر باز موضوع مورد بحث و مناظره بوده است. رویکردهای اخیرآموزش دستور زبان توجه محققین را به خود جلب کرده است. طبق رویکرد قالبی ( focus on form ) ، هدف این مطالعه بررسی تأثیر روش های برجستگی متنی enhancement) (textual و فرایند داده پردازی(input processing) در مقابل روش سنتی(traditional instruction) در فراگیری افعال روانی و غیر روانی گذرا و ناگذرای انگلیسی توسط فراگیران فارسی...

Abstract   This study is applied Lattice Boltzmann Method to investigate the natural convection flow utilizing nanofluids in a concentric annulus. A numerical strategy presents for dealing with curved boundaries of second order accuracy for both velocity and temperature fields. The fluid between the cylinders is a water-based nanofluid containing different types of nanoparticles: copper (Cu), a...

Journal: :Applied system innovation 2022

Heat and flow enhancement is a critical weapon for the design of highly efficient, compact, cost-effective devices. The objective this analysis detailed examination implementation different fin shapes on internal side tube aiming heat enhancement. reference empty examined, while use circular, rectangular, triangular fins also studied. Different simulations were conducted with developed computat...

2014
Sampada S Pathak Ganesh Padole

Image enhancement is used to improve the poor quality of an image to make it useful for human and for machine use. This paper suggests two methods for contrast image enhancement to preserve brightness of an image. This method is applied on 2D histogram. In 2D histogram preserving color value is very important part. Local feature enhancement technique is used to improve local features of an imag...

2012
S. Toroghi P. G. Kik

Cascaded optical field enhancement in coupled plasmonic nanostructures has attracted significant attention because of field enhancement factors that dramatically exceed those observed in isolated nanostructures. While previous studies demonstrated the existence of cascaded enhancement, little work has been done to identify the requirements for achieving maximum field enhancement. Here, we inves...

2015
Ya-Lan Wang Nasim Mohammadi Estakhri Amber Johnson Hai-Yang Li Li-Xiang Xu Zhenyu Zhang Andrea Alù Qu-Quan Wang Chih-Kang (Ken) Shih

By using silver nanoplatelets with a widely tunable localized surface plasmon resonance (LSPR), and their corresponding local field enhancement, here we show large manipulation of plasmonic enhanced upconversion in NaYF4:Yb(3+)/Er(3+) nanocrystals at the single particle level. In particular, we show that when the plasmonic resonance of silver nanolplatelets is tuned to 656 nm, matching the emis...

Journal: :Physical chemistry chemical physics : PCCP 2012
Ganesh Vasan Andreas Erbe

The finite element method (FEM) was used to solve the time-harmonic Maxwell equations in a study of the effect of the incidence angle of infrared light on the surface enhancement caused by colloidal gold particles in attenuated total reflection surface enhanced infrared absorption spectroscopy (ATR-SEIRAS). The spectral enhancement factor was obtained from computations of absorbance from a thin...

2007
P. Crochet

We investigate the effect of the so-called anomalous baryon/meson enhancement to the nuclear modification factor of non-photonic electrons in Au+Au collisions at √ sNN = 200 GeV. It is demonstrated that an enhancement of the charm baryon/meson ratio, as it is observed for non-strange and strange hadrons, can be responsible for part of the amplitude of the nuclear modification factor of non-phot...

Journal: :Optics express 2008
Nikhil Ganesh Ian D Block Patrick C Mathias Wei Zhang Edmond Chow Viktor Malyarchuk Brian T Cunningham

Efficient recovery of light emitted by fluorescent molecules by employing photonic structures can result in high signal-to-noise ratio detection for biological applications including DNA microarrays, fluorescence microscopy and single molecule detection. By employing a model system comprised of colloidal quantum dots, we consider the physical basis of the extraction effect as provided by photon...

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