Results 61 to 70 of about 536,964 (293)

High-Resolution ADCs Design in Image Sensors [PDF]

open access: yes, 2018
This paper presents design considerations for high-resolution and high-linearity ADCs for biomedical imaging ap-plications. The work discusses how to improve dynamic spec-ifications such as Spurious Free Dynamic Range (SFDR) and Signal-to-Noise-and ...
Cen, Yuanjun   +7 more
core   +1 more source

Clinical performance of the urine‐based TERT promoter AbsoluteQ Digital PCR for non‐invasive detection of bladder cancer

open access: yesMolecular Oncology, EarlyView.
A urine‐based digital PCR assay targeting two hotspot TERT promoter variants detected bladder cancer with high sensitivity and no false positives in this case–control cohort. The streamlined AbsoluteQ workflow outperformed Sanger sequencing and supports non‐invasive molecular testing for bladder cancer detection.
Anna Nykel   +12 more
wiley   +1 more source

Double pulse transmission - signal-to-noise ratio improvement in ultrasound imaging

open access: yesArchives of Acoustics, 2008
This study investigates a new composing method of double transmission of short coded sequences based on well-known Golay complementary codes, which allow to obtain the higher signal-to-noise ratio (SNR) and increase penetration depth. The
Ihor TROTS   +4 more
doaj  

Diffusion tensor MR microscopy of tissues with low diffusional anisotropy

open access: yesRadiology and Oncology, 2016
Diffusion tensor imaging exploits preferential diffusional motion of water molecules residing within tissue compartments for assessment of tissue structural anisotropy.
Bajd Franci   +3 more
doaj   +1 more source

Exploring the Potential of Airyscan Microscopy for Live Cell Imaging

open access: yesPhotonics, 2017
Biological research increasingly demands the use of non-invasive and ultra-sensitive imaging techniques. The Airyscan technology was recently developed to bridge the gap between conventional confocal and super-resolution microscopy.
Kseniya Korobchevskaya   +3 more
doaj   +1 more source

Optimal control of the signal to noise ratio per unit time for a spin 1/2 particle

open access: yes, 2014
We investigate the maximum signal to noise ratio per unit time that can be achieved for a spin 1/2 particle subjected to a periodic pulse sequence. Optimal control techniques are applied to design the control field and the position of the steady state ...
Assémat, E.   +3 more
core   +1 more source

Design and Performance Evaluation of a Time Domain Microwave Imaging System [PDF]

open access: yes, 2013
We design a time domain microwave system dedicated to medical imaging. The measurement accuracy of the system, that is, signal-to-noise ratio, due to voltage noise and timing noise, is evaluated.
Fhager, Andreas   +4 more
core   +2 more sources

Polarization‐resolved femtosecond Vis/IR spectroscopy tailored for resolving weak signals in biological samples using minimal sample volume

open access: yesFEBS Open Bio, EarlyView.
Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley   +1 more source

Differential regulation of ZFAS1 splice variants by endoplasmic reticulum stress in hepatocyte cell lines

open access: yesFEBS Open Bio, EarlyView.
ZFAS1 is a lncRNA promoting cell proliferation and migration, exhibiting high expression in various cancers. It is conserved, widely expressed, and produces multiple splice variants with unclear roles. We identified several splice variants in hepatocyte models, and found that inhibiting or suppressing regulators of the unfolded protein response (PERK ...
Sébastien Soubeyrand   +2 more
wiley   +1 more source

A novel IWPT-VMD denoising method for enhancing air-coupled ultrasonic detection of wood defects [PDF]

open access: yesAIP Advances
To address the low signal-to-noise ratio in air-coupled ultrasonic detection of wood defects, this paper proposes a signal denoising method, improved threshold function-variational mode decomposition (IWPT-VMD), that integrates wavelet packet transform ...
Jun Wang, Shiqiang Tang
doaj   +1 more source

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