Results 21 to 30 of about 607,674 (294)

How Attention Affects Spatial Resolution [PDF]

Cold Spring Harbor Symposia on Quantitative Biology, 2014
We summarize and discuss a series of psychophysical studies on the effects of spatial covert attention on spatial resolution, our ability to discriminate fine patterns. Heightened resolution is beneficial in most, but not all, visual tasks. We show how endogenous attention (voluntary, goal driven) and exogenous attention (involuntary, stimulus driven ...
Marisa, Carrasco, Antoine, Barbot
openaire   +2 more sources

The Impact of Cross-Talk in a Flat Panel Detector on CT Image Quality

IEEE Open Journal of Instrumentation and Measurement, 2023
Spatial resolution and image noise are two aspects of image quality of an X-ray computed tomography (CT) system and are determined by the X-ray source, the detector, and mathematical operations for image reconstruction.
Seemeen Karimi, James Hall, Jerel A. Smith, Joseph Tringe   +3 more
doaj   +1 more source

Investigation of a Signal Demodulation Method based on Wavelet Transformation for OFDR to Enhance Its Distributed Sensing Performance

Sensors, 2019
Optical fiber distributed sensing that is based on optical frequency domain reflectometer (OFDR) is a promising technology for achieving a highest spatial resolution downwards to several millimeters.
Kunpeng Feng, Jiwen Cui, Hong Dang, Xun Sun, Dong Jiang, Yihua Jin, Yizhao Niu, Xuping Zhang   +7 more
doaj   +1 more source

A New Design of Large-format Streak Tube with Single-lens Focusing System

Measurement Science Review, 2021
Streak tubes with large-format and high spatial resolution are central to mm-spatial-resolved STIL detection system and hyperspectral resolved ICF experiment.
Tian Liping, Shen Lingbin, Chen Lin, Li Lili, Tian Jinshou, Chen Ping, Zhao Wei   +6 more
doaj   +1 more source

Visualization of Flooding Using Adaptive Spatial Resolution

ISPRS International Journal of Geo-Information, 2019
Flood simulations are vital to gain insight into possible dangers and damages for effective emergency planning. With flexible and natural ways of visualizing water flow, more precise evaluation of the study area is achieved.
I. Alihan Hadimlioglu, Scott A. King
doaj   +1 more source

Investigating Suppression of Cloud Return with a Novel Optical Configuration of a Doppler Lidar

Remote Sensing, 2022
The full-width at half-maximum or probe length of the Lorentzian weighting function of continuous-wave Doppler lidars increases quadratically with the focus distance, which results in a deterioration in the spatial resolution of measurements.
Liqin Jin, Jakob Mann, Mikael Sjöholm
doaj   +1 more source

Spatial Resolution in Atom Probe Tomography [PDF]

Microscopy and Microanalysis, 2010
AbstractThis article addresses gaps in definitions and a lack of standard measurement techniques to assess the spatial resolution in atom probe tomography. This resolution is known to be anisotropic, being better in-depth than laterally. Generally the presence of atomic planes in the tomographic reconstruction is considered as being a sufficient proof ...
Gault, B, Moody, MP, De Geuser, F, La Fontaine, A, Stephenson, LT, Haley, D, Ringer, SP   +6 more
openaire   +6 more sources

Stereotactic Body Radiation Therapy for Pediatric, Adolescent, and Young Adult Patients With Osteosarcoma: Local Control Outcomes With Dosimetric Analysis

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background/Objectives Osteosarcoma is a radioresistant tumor that may benefit from stereotactic body radiation therapy (SBRT) for locoregional control in metastatic/recurrent disease. We report institutional practice patterns, outcomes, toxicity, and failures in osteosarcoma patients treated with SBRT.
Jenna Kocsis, Shauna R. Campbell, Jonathan Jang, Eashwar Somasundaram, Chandana A. Reddy, Jacob G. Scott, Lilyana Angelov, Peter M. Anderson, Matteo Trucco, Zachary Burke, Lukas Nystrom, Nathan Mesko, Anthony Magnelli, Erin S. Murphy   +13 more
wiley   +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

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, Tingting Chen, James A. Letts   +2 more
wiley   +1 more source