نتائج البحث - "Resolution (electron density)"

1

Brain Interstitial Structure Revealed Through Diffusive Spread of Molecules

المصدر: Diffusive Spreading in Nature, Technology and Society ISBN: 9783031059452
Diffusive Spreading in Nature, Technology and Society ISBN: 9783319677972

الوصف: Freshly removed from the skull, the human brain looks like a cauliflower with the consistency of a creme caramel flan. This mundane object conceals the most complex structure ever discovered. When the interior of the brain is examined with a resolution of a few micrometers, using appropriate staining techniques and light microscopy, it is seen to be composed of a vast number of cells. The full complexity of the ensemble of cells is only finally revealed at the submicron level using electron microscopy. This chapter will show how the application of methods and models based on diffusion can lead to an understanding of how brain cells pack together and some of the remarkable properties of the narrow spaces that separate them.

URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::59d07666277cc9bddf3446d40d6004a9
https://doi.org/10.1007/978-3-031-05946-9_6

2

Ensemble Kalman Filter Experiments at 112-km and 28-km Resolution for the Record-Breaking Rainfall Event in Japan in July 2018

المؤلفون: Takemasa Miyoshi, Koji Terasaki

المصدر: Data Assimilation for Atmospheric, Oceanic and Hydrologic Applications (Vol. IV) ISBN: 9783030777210
Data Assimilation for Atmospheric, Oceanic and Hydrologic Applications (Vol. IV)

مصطلحات موضوعية: Meteorology, Event (relativity), Resolution (electron density), Environmental science, Ensemble Kalman filter

URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_________::15ac3fb674d43aaccc32a74733ca14ca
https://doi.org/10.1007/978-3-030-77722-7_20

3

Transfer of Thermal Analysis Results to the Structural Model

المؤلفون: Simon Appel, Jaap Wijker

المصدر: Simulation of Thermoelastic Behaviour of Spacecraft Structures ISBN: 9783030789985

مصطلحات موضوعية: Materials science, Thermoelastic damping, Resolution (electron density), Thermal, Thermodynamics, Thermal model, Fe model, Thermal analysis, Temperature mapping

الوصف: In general, the thermal model has a lower resolution than the structural FE model used for linear thermoelastic analysis. Besides a difference in mesh resolution, the methods used for the thermal and structural analyses differ as well. This complicates the transfer, also referred to as temperature mapping, of the calculated temperatures of the thermal model as temperature loading on the FE model for thermoelastic response calculation. This chapter discusses four different systematic methods for temperature mapping.

URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_________::0b792ccb935f95c0390304e0b204b49c
https://doi.org/10.1007/978-3-030-78999-2_7

4

Design and Measurement of the Peltier Cell Thermal Actuator for Fine Adjustment

المؤلفون: Jan Hošek

المصدر: International Conference on Reliable Systems Engineering (ICoRSE)-2021 ISBN: 9783030833671

مصطلحات موضوعية: Materials science, Cell control, Acoustics, Thermal, Thermoelectric effect, Resolution (electron density), Experimental validation, Actuator, Working range

الوصف: The article presents design and experimental validation of a thermal actuator based on peltier cell control. The experiments showed the possibility of fine adjustment of large-scale objects in the working range of 24 µm with a sub-micrometer resolution capability. We have proved the main body of the actuator is not affected with heat effects during the actuator control.

URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_________::d68d913576b70b56e5f775a3c91aeccb
https://doi.org/10.1007/978-3-030-83368-8_5

5

Blind Super-resolution of Faces for Surveillance

المؤلفون: A. N. Rajagopalan, T. M. Nimisha

المصدر: Advances in Computer Vision and Pattern Recognition ISBN: 9783030746964

مصطلحات موضوعية: business.industry, Computer science, Low resolution, Resolution (electron density), Computer vision, Artificial intelligence, Single image, business, Superresolution, Image (mathematics)

الوصف: Super-resolution (SR) refers to a class of techniques that derive a high resolution image from its low resolution (LR) counterpart. A vast amount of literature exists on SR spanning both multi and single image approaches.

URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_________::8f4fee9ea746e7a64d5a542eb09d68b1
https://doi.org/10.1007/978-3-030-74697-1_6

6

Pseudo-compressibility, Dispersive Model and Acoustic Waves in Shallow Water Flows

المؤلفون: Edwige Godlewski, Marie-Odile Bristeau, Sébastien Imperiale, Jacques Sainte-Marie, Anne Mangeney, Anne-Sophie Bonnet-Ben Dhia

المصدر: SEMA SIMAI Springer Series ISBN: 9783030728496

مصطلحات موضوعية: Physics, Resolution (electron density), Relaxation (iterative method), 010103 numerical & computational mathematics, Acoustic wave, Mechanics, Type (model theory), 01 natural sciences, 010101 applied mathematics, Waves and shallow water, Elliptic curve, Free surface, Compressibility, 0101 mathematics

الوصف: In this paper we study a dispersive shallow water type model derived from the free surface compressible Navier-Stokes system. The compressible effects allow to capture the acoustic-like waves propagation and can be seen as a relaxation of an underlying incompressible model. The first interest of such a model is thus to capture both acoustic and water waves. The second interest lies in its numerical approximation. Indeed, at the discrete level, the pseudo-compressibility terms circumvent the resolution of an elliptic equation to capture the non-hydrostatic part of the pressure. This drastically reduces the cost of the numerical resolution of dispersive models especially in 2d and 3d.

URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_________::4c5e39695ec8abe067a0cb307c18690d
https://doi.org/10.1007/978-3-030-72850-2_10

7

Coulomb Explosion Imaging: Super-Resolution by Optical Properties of Electrostatics Lenses

المؤلفون: David Babalola, C. Sean Bohun

المصدر: Springer Proceedings in Mathematics & Statistics ISBN: 9783030635909

مصطلحات موضوعية: Physics, Optics, business.industry, Resolution (electron density), Coulomb explosion, Point (geometry), business, Focus (optics), Electrostatics, Superresolution, Electrostatic lens

الوصف: Velocity-map imaging (VMI) is a popular technique in a Coulomb-explosion imaging experiment with the capacity to focus photo-fragments based on their initial velocity vectors. The VMI is capable of achieving this feat as a result of the system of electrostatic lenses with varying potential, which the photo-fragments have to transit. However, despite the focusing capability of the VMI, the measured time-of-flights of the photo-fragments still suffer from a temporal spread, which is a consequence of the initial velocity and spatial spread at the point of formation. To be able to improve the spatial-temporal resolution of the photo-fragments at the point of formation, there is a need for a better understanding of how the system of electrostatic lenses alter the trajectories of the photo-fragments between formation and detection to achieve a velocity map. Also, an expression is derived to resolve the spatial spread of the photo-fragment products.

URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_________::02f80b26533f5abf25a67c60a1e87f88
https://doi.org/10.1007/978-3-030-63591-6_33

8

Impact of Image Resolution and Resampling on Motion Tracking of the Left Chambers from Cardiac Scans

المؤلفون: Marina Strocchi, Orod Razeghi, Steven A. Niederer, Daniel B. Ennis, Henry Chubb, Ronak Rajani, Cesare Corrado

المصدر: Functional Imaging and Modeling of the Heart ISBN: 9783030787097
FIMH

مصطلحات موضوعية: Image quality, Computer science, Resolution (electron density), 030204 cardiovascular system & hematology, Tracking (particle physics), 030218 nuclear medicine & medical imaging, 03 medical and health sciences, 0302 clinical medicine, Match moving, Motion estimation, Medical imaging, Image scaling, Image resolution, Biomedical engineering

الوصف: Cardiac magnetic resonance (CMR) is an important diagnostic imaging modality in cardiovascular medicine. Estimation of myocardium motion derived from CMR scans is routinely used to measure the cardiac mechanics. However, tracking a rapidly moving organ can be compromised by artefacts or impaired image quality. To assess how in-plane image resolution and slice sampling in short and long axis scans impact errors in motion tracking, we utilised retrospective gated cardiac computed tomography (CCT) imaging as a surrogate groundtruth for motion estimation across 10 clinical datasets, since these scans have a higher isotropic resolution than CMR and the ability to capture full 3D motion. In our work, the left atrial (LA) and ventricular (LV) cavities were first delineated, and then reconstructed short and long axis images were used in a non-rigid registration method with optimised hyperparameters to track endocardial motion. Finally, global and regional functions in the form of area, circumferential, and longitudinal strains were computed. Our findings showed that tracking LA was more sensitive than LV to changes in the in-plane resolution and magnitude of strain was robust to resolution changes in short axis images, when correlated with the groundtruth (r: 0.87–0.99, \(R^2\): 0.75–0.98). We also found that 9 short axis slices could capture the motion of LV almost as accurately as 36 slices captured in long axis (r: 0.89 vs. 0.90, \(R^2\): 0.80 vs. 0.80), illustrating that the cardiac mechanics measured by short axis scans are more likely to be robust to image artefacts and reconstruction parameters.

URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_________::5d45942870ca056f66076cc312ebd5e1
https://doi.org/10.1007/978-3-030-78710-3_2

9

Riverine Ecology Volume 2

المؤلفون: Susanta Kumar Chakraborty

مصطلحات موضوعية: Biodiversity conservation, business.industry, Ecology (disciplines), Environmental resource management, Resolution (electron density), Volume (computing), Environmental science, business

URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_________::7fb257080f3bbed28795fbc71ace1684
https://doi.org/10.1007/978-3-030-53941-2

10

Large Clique is Hard on Average for Resolution

المؤلفون: Shuo Pang

المصدر: Computer Science – Theory and Applications ISBN: 9783030794156
CSR

مصطلحات موضوعية: Combinatorics, Random graph, Physics, Resolution (electron density), Type (model theory), Clique (graph theory), Upper and lower bounds

الوصف: We prove an \(\exp ({\varOmega (k^{(1-\epsilon )})})\) resolution size lower bound for the k-Clique problem on random graphs, for (roughly speaking) \(k

URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_________::3809b5f8edb1d946496d3a38cb822e38
https://doi.org/10.1007/978-3-030-79416-3_22

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