Results 31 to 40 of about 2,333,185 (258)
A Compact and Fast Resonant Cavity-Based Encoder in Photonic Crystal Platform
CrystalsA novel 4-to-2 photonic crystal encoder is proposed by modulating the intensity of four input optical signals, and four distinct output states are achieved.
Mohammad Soroosh +4 more
doaj +1 more source
The Egyptian Journal of Radiology and Nuclear Medicine, 2023 Background Incidence of malignancy in architectural distortion (AD) is variable, and as a standard of care, all the architectural distortions are biopsied.
Rupa Renganathan +5 more
doaj +1 more source
Frontiers in Biomedical Technologies, 2022 Purpose: Gold Nanoparticles (GNPs) with high density and an atomic number have lately been proposed as an alternative contrast agent for Computed Tomography (CT).
Sara Khademi +2 more
doaj +1 more source
Contrast Ratios in Outdoor LED Displays [PDF]
Information Display, 2010 Real‐world viewing situations for LED displays in an outdoor environment are highly variable in terms of light‐source intensity, light‐source angle, and angle of measurement. Thus, accurate specifications can be difficult to determine.
openaire +1 more source
Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM
FEBS Letters, EarlyView.Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley +1 more source
Frontiers in PhysiologyObjectiveTo evaluate the effectiveness of 3D NerveVIEW sequence with gadolinium contrast on the visualization of pelvic nerves and their branches compared to that without contrast.MethodsParticipants were scanned twice using 3D NerveVIEW sequence with ...
Hui Liu +9 more
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Mapping the evolution of mitochondrial complex I through structural variation
FEBS Letters, EarlyView.Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin +2 more
wiley +1 more source
On the definition of signal-to-noise ratio and contrast-to-noise ratio for FMRI data. [PDF]
PLoS ONE, 2013 Signal-to-noise ratio, the ratio between signal and noise, is a quantity that has been well established for MRI data but is still subject of ongoing debate and confusion when it comes to fMRI data.
Marijke Welvaert, Yves Rosseel
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Frontiers in Human Neuroscience, 2022 Delineation of the subthalamic nuclei (STN) on MRI is critical for deep brain stimulation (DBS) surgery in patients with Parkinson’s disease (PD). We propose this retrospective cohort study for quantitative analysis of MR signal-to-noise ratio (SNR ...
Chun-Yu Su +13 more
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Signal-to-noise ratio, contrast-to-noise ratio and pharmacokinetic modeling considerations in dynamic contrast-enhanced magnetic resonance imaging [PDF]
Magnetic Resonance Imaging, 2012 With advances in magnetic resonance imaging (MRI) technology, dynamic contrast-enhanced (DCE)-MRI is approaching the capability to simultaneously deliver both high spatial and high temporal resolutions for clinical applications. However, signal-to-noise ratio (SNR) and contrast-to-noise ratio (CNR) considerations and their impacts regarding ...
Xin, Li, Wei, Huang, William D, Rooney
openaire +2 more sources