scholarly journals Cardiac real‐time MRI using a pre‐emphasized spiral acquisition based on the gradient system transfer function

2020 ◽  
Author(s):  
Philipp Eirich ◽  
Tobias Wech ◽  
Julius F. Heidenreich ◽  
Manuel Stich ◽  
Nils Petri ◽  
...  
Keyword(s):  
Transfer Function ◽  
Real Time ◽  
Gradient System ◽  
Spiral Acquisition ◽  
System Transfer Function

scholarly journals Field camera versus phantom-based measurement of the gradient system transfer function (GSTF) with dwell time compensation

2020 ◽  
Vol 71 ◽  
pp. 125-131
Author(s):  
M. Stich ◽  
J.A.J. Richter ◽  
T. Wech ◽  
T.A. Bley ◽  
R. Ringler ◽  
...  
Keyword(s):  
Transfer Function ◽  
Dwell Time ◽  
Gradient System ◽  
System Transfer Function

Gradient waveform pre-emphasis based on the gradient system transfer function

2018 ◽  
Vol 80 (4) ◽  
pp. 1521-1532 ◽  
Author(s):  
Manuel Stich ◽  
Tobias Wech ◽  
Anne Slawig ◽  
Ralf Ringler ◽  
Andrew Dewdney ◽  
...  
Keyword(s):  
Transfer Function ◽  
Gradient System ◽  
Gradient Waveform ◽  
System Transfer Function

Measurement of a World-Wide Transfer Function for Marine Cloud Brightening

2021 ◽  
Vol 6 (3) ◽  
Author(s):  
Salter SH ◽  
Keyword(s):  
Transfer Function ◽  
Real Time ◽  
World Wide ◽  
Climate Model ◽  
Sea Water ◽  
Cloud Condensation Nuclei ◽  
Short Life ◽  
Weather Patterns ◽  
Weather Observations ◽  
The World

Marine cloud brightening with a sub-micron spray of filtered sea water can exploit the Twomey effect to enhance planetary cooling. Several previous climate model results show that it can also affect precipitation in both directions in different places. Modulating the climate model settings for the concentration of cloud condensation nuclei with separate coded sequences in a number of spray regions round the world and correlating each sequence with the resulting weather patterns in observing stations round the world can give an everywhereto- everywhere transfer function of spray from each region to each observing station. The short life of spray allows the best choices of spray regions and seasons. Spray patterns can be modified tactically to suit real-time weather observations.

scholarly journals Characterization of Raman Spectroscopy System Transfer Functions in Intensity, Wavelength, and Time

Instruments ◽  
2020 ◽  
Vol 4 (3) ◽  
pp. 22
Author(s):  
Yu-Chung Lin ◽  
Joseph V. Sinfield
Keyword(s):  
Transfer Function ◽  
Transfer Functions ◽  
Low Cost ◽  
Instrument Design ◽  
Spectroscopic Techniques ◽  
Measurement Science ◽  
Broad Array ◽  
Spectroscopy System ◽  
System Transfer Function

The emergence of a wide variety of relatively low-cost compact spectrometers has led to an increase in the use of spectroscopic techniques by researchers in a broad array of fields beyond those that have traditionally employed these analytical methods. While the fundamental elements and functions of Raman systems are generally consistent, the specific components that compose a system may vary in number, design, and configuration, and researchers often modify off-the-shelf spectrometers for unique applications. Understanding the effect of instrument design and components on acquired information is thus crucial and provides the prospect to optimize the system to individual needs and to properly compare results obtained with different systems while also reducing the potential for unintended misinterpretation of data. This paper provides a practical treatment of the influences in a typical compact spectroscopy system that can impact the extent to which the output of the system is representative of the observed environment, a relationship that in measurement science is classically termed the system transfer function. For clarity, the transfer function is developed in terms of traditional Raman output parameters, namely intensity, wavelength, and time.

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