Results 61 to 70 of about 454,644 (284)

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

FEBS 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

On the Influence of Scattered Errors over Full-Field Receptances in the Rayleigh Integral Approximation of Sound Radiation from a Vibrating Plate

Acoustics, 2023
Spatially dense operative deflection shapes and receptances, acquired in broad frequency bands, increase the detail in the spatial and frequency domains of the responses of parts in actual dynamic loading, manufacturing and mounting conditions. This work
Alessandro Zanarini
doaj   +1 more source

MITK-ModelFit: A generic open-source framework for model fits and their exploration in medical imaging -- design, implementation and application on the example of DCE-MRI

, 2019
Many medical imaging techniques utilize fitting approaches for quantitative parameter estimation and analysis. Common examples are pharmacokinetic modeling in DCE MRI/CT, ADC calculations and IVIM modeling in diffusion-weighted MRI and Z-spectra analysis
Abdollahi, Amir, Debus, Charlotte, Floca, Ralf, Ingrisch, Michael, Kompan, Ina, Maier-Hein, Klaus, Nolden, Marco   +6 more
core   +1 more source

SOFTWARE FOR CALCULATION OF NOISE MAPS IMPLEMENTED ON SUPERCOMPUTER

TASK Quarterly, 2009
Investigation results relevant to the implementation of algorithms for calculation of noise maps are presented in this paper. The aim of implementing the algorithms on a computer cluster is explained.
ANDRZEJ CZYŻEWSKI, MACIEJ SZCZODRAK
doaj  

High Precision Astrometric Millimeter VLBI Using a New Method for Atmospheric Calibration

, 2011
We describe a new method which achieves high precision Very Long Baseline Interferometry (VLBI) astrometry in observations at millimeter wavelengths.
Alef, Asaki, Asaki, Beasley, Dodson, Dodson, Falcke, Fomalont, Honma, Honma, Jung, Lobanov, M. Rioja, Porcas, Porcas, Porcas, Porcas, R. Dodson, Reid, Rioja, Rioja, Rioja, Rioja, Rioja, Rioja, Thompson, Ulvestad, Walker   +27 more
core   +1 more source

A radio continuum survey of the southern sky at 1420 MHz. Observations and data reduction [PDF]

, 2001
We describe the equipment, observational method and reduction procedure of an absolutely calibrated radio continuum survey of the South Celestial Hemisphere at a frequency of 1420 MHz. These observations cover the area 0h < R.A.
A. J. Sanz, Alvarez, Bensadoun, E. E. Hurrel, Emerson, F. R. Colomb, Haslam, Haslam, Haslam, J. A. Bava, J. C. Testori, J. J. Larrarte, P. Reich, Pelyushenko, Platania, Reich, Reich, Reich, Reich, Shakeshaft, Sofue, Staggs, Uyaniker, W. Reich   +23 more
core   +2 more sources

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

FEBS 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, Paulina Lau, Ruth McPherson   +2 more
wiley   +1 more source

A High-Fidelity Star Map Simulation Method for Airborne All-Time Three-FOV Star Sensor Under Dynamic Conditions

Remote Sensing
To address the lack of reliable test data for evaluating star sensor performance in dynamic airborne environments, this paper presents a high-fidelity star map simulation method for all-time three-Field of View (FOV) star sensors.
Jingsong Zhou, Hui Zhang, Liang Fang, Xiaodong Gao, Kaili Lu, Wei Sun, Rujin Zhao   +6 more
doaj   +1 more source

A four-dimensional computational model of dynamic contrast-enhanced magnetic resonance imaging measurement of subtle blood-brain barrier leakage

NeuroImage, 2021
Dynamic contrast-enhanced MRI (DCE-MRI) is increasingly used to quantify and map the spatial distribution of blood-brain barrier (BBB) leakage in neurodegenerative disease, including cerebral small vessel disease and dementia.
Jose Bernal, Maria d.C. Valdés-Hernández, Javier Escudero, Anna K. Heye, Eleni Sakka, Paul A. Armitage, Stephen Makin, Rhian M. Touyz, Joanna M. Wardlaw, Michael J. Thrippleton   +9 more
doaj   +1 more source

Measurement of Antenna Surfaces from In- and Out-Of-Focus Beam Maps using Astronomical Sources [PDF]

, 2006
We present a technique for the accurate estimation of large-scale errors in an antenna surface using astronomical sources and detectors. The technique requires several out-of-focus images of a compact source and the signal-to-noise ratio needs to be good
Anderson, B. Nikolic, Fuhr, J. S. Richer, Morris, Nikolic, R. E. Hills, Ruze, Scott   +8 more
core   +2 more sources