نتایج جستجو برای: blinking

تعداد نتایج: 2535  

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2007
Matthew Pelton Glenna Smith Norbert F Scherer Rudolph A Marcus

Fluorescence blinking in nanocrystal quantum dots is known to exhibit power-law dynamics, and several different mechanisms have been proposed to explain this behavior. We have extended the measurement of quantum-dot blinking by characterizing fluctuations in the fluorescence of single dots over time scales from microseconds to seconds. The power spectral density of these fluctuations indicates ...

Journal: :PeerJ Computer Science 2015
Navin Sharma Dilip Kumar Krishnappa Sean Kenneth Barker David E. Irwin Prashant J. Shenoy

Reducing the energy footprint of data centers continues to receive significant attention due to both its financial and environmental impact. There are numerous methods that limit the impact of both factors, such as expanding the use of renewable energy or participating in automated demand-response programs. To take advantage of these methods, servers and applications must gracefully handle inte...

Journal: :Investigative Opthalmology & Visual Science 2006

2014
Ana Paula Serro Raquel Galante Patrizia Paradiso Maria Guilhermina Moutinho Ana Isabel Fernandes José Mata António Matos Rogério Colaço Benilde Saramago M. G. Moutinho

Manuscript Number: Full Title: About the effect of eye blinking on drug release from pHEMA based hydrogels: an in vitro study Short Title: Blinking effect on drug release from pHEMA Article Type: Original Research Paper

Journal: :Nature Nanotechnology 2009

2014
Suguru Kanoga Yasue Mitsukura

Many biological signal analyses have been proceeded in various research fields. In particular, electroencephalographic (EEG) signal analyses have attracted attention because the EEG signal includes a mixture of endogenous brain activities. However, the EEG signal is often mixed physiological artifacts such as the eye blinking, oculogyration, heart beat, or muscle activity. Specifically, humans ...

Journal: :Neuroscience letters 2005
Hyo Woon Yoon Jun-Young Chung Myung-Sung Song HyunWook Park

Neural correlates of eye blink in healthy human subjects can be investigated using functional magnetic resonance imaging. However, the focus of most previous studies has been on intentional eye blinking. The goal of the present study was to examine the neural correlates of spontaneous eye blinking with the help of EOG measurements during data acquisition of fMRI. After the removal of the pulse ...

2014
Lucas A. Lane Andrew M. Smith Tianquan Lian Shuming Nie

Quantum dots (QDs) offer distinct advantages over organic dyes and fluorescent proteins for biological imaging applications because of their brightness, photostability, and tunability. However, a major limitation is that single QDs emit fluorescent light in an intermittent on-and-off fashion called "blinking". Here we report the development of blinking-suppressed, relatively compact QDs that ar...

2015
Fengrui Hu Zengle Cao Chunfeng Zhang Xiaoyong Wang Min Xiao

Here we report two types of defect-induced photoluminescence (PL) blinking behaviors observed in single epitaxial InGaAs quantum dots (QDs). In the first type of PL blinking, the "off" period is caused by the trapping of hot electrons from the higher-lying excited state (absorption state) to the defect site so that its PL rise lifetime is shorter than that of the "on" period. For the "off" peri...

2012
Natsue Yoshimura Naoaki Itakura

Among non-invasive Brain Computer Interfaces (BCIs), electroencephalogram (EEG) has been the most commonly used for them because EEG is advantageous in terms of its simplicity and ease of use, which meets BCI specifications when considering practical use. In general, EEG signals (EEGs) can be classified into two categories, spontaneous EEGs and stimulus evoked EEGs. Focusing on stimulus evoked ...

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