Results 71 to 80 of about 153,264 (305)

Development of a new spectral library classifier for airborne hyperspectral images on heterogeneous environments [PDF]

, 2011
The classification of hyperspectral images on heterogeneous environments without prior knowledge about the study area is a challenging task. Finding potential pure spectral signatures or endmembers (EM) of the various surface materials within an image is
Mende, Andre, Heiden, Uta, Buchroithner, Manfred, Hoja, Danielle, Bachmann, Martin   +4 more
core  

Rotation, spectral variability, magnetic geometry and magnetosphere of the Of?p star CPD -28° 2561 [PDF]

, 2015
peer reviewedWe report magnetic and spectroscopic observations and modelling of the Of?p star CPD -28° 2561. Using more than 75 new spectra, we have measured the equivalent width variations and examined the dynamic spectra of photospheric and wind ...
Petit, V., Sundqvist, J. O., Naze, Y., Barbá, R. H., ud-Doula, A., MiMeS Collaboration, Wade, G. A., Gamen, Roberto Claudio, Alfaro, E. J., Nazé, Yaël, Sota, A., Morrell, Nidia Irene, Sota, A, sMaíz Apellániz, J., Walborn, N. R., Arias, J. I., Maíz Apellániz, J., Townsend, R. H. D., Maíz Apellaniz, J, Grunhut, J., Arias, Julia Ines, Alecian, E., MiMeS Collaboration,, Barbá, Rodolfo Héctor, Gamen, R., Doula, A. ud, Martins, F., Morrell, N.   +27 more
core   +1 more source

A Sparse Representation Method for a Priori Target Signature Optimization in Hyperspectral Target Detection

IEEE Access, 2018
Many target detectors commonly utilize a single a priori target spectral signature as an input. However, the detection results are greatly affected by the quality of the a priori target spectral signature because the spectral variability phenomenon is ...
Ting Wang, Hongsheng Zhang, Hui Lin, Xiuping Jia   +3 more
doaj   +1 more source

Development and Implementation of a Disease‐Targeted Storybook as a Clinical Tool for Children With Acute Leukemia

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Although significant progress has been made in childhood leukemia survival, healthcare providers, and caregivers often face challenges in explaining this disease to patients. Disease‐targeted storybooks have been proposed as a tool to facilitate the understanding of diagnoses and treatment.
Nutvipha Ummartyotin, Usanarat Anurathapan, Rawiwan Roongpraiwan, Potchanee Dandamrongrak, Siriporn Nakhonchai, Pawin Numthavaj, Vilawan Chirdkiatgumchai   +6 more
wiley   +1 more source

Redshift dependence of QSO spectral variability [PDF]

, 2006
We present a combined analysis of the optical spectral variability for two samples of QSOs, 42 objects at z < 0.4 monitored at the Wise Observatory, plus 59 objects up to z approximate to 3 in the field of the Magellanic Clouds, detected and/or monitored
Vagnetti, F, TREVESE, Dario, VAGNETTI, FAUSTO, VAGNETTI F, Trevese, D., Trevese, D   +5 more
core  

A Bibliometric Analysis of Publications in Uremic Toxins From 1991 to 2024

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Uremic toxins are a growing area of research in nephrology, with significant implications in the progression and treatment of chronic kidney disease (CKD) and the management of end‐stage kidney disease (ESKD). This bibliometric analysis aims to evaluate the global research trends, key contributors, and the impact of publications in ...
Yuh‐Shan Ho, Karim M. Soliman, Wisit Cheungpasitporn, Wannasit Wathanavasin, Ahmed Daoud, Ahmed I. Kamal, Balázs Szamosfalvi, Tibor Fülöp   +7 more
wiley   +1 more source

Application of hos for heart rate variability [PDF]

, 2022
This work is devoted to calculation of higher order spectra (HOS) of ECG signals and comparing of results of standard spectral and statistical methods and HOS methods for heart rate variability (HRV) analysis.
Zhemchuzhkina, T. V., Abdallah, Iren
core  

Spectral Unmixing of Pigments on Surface of Painted Artefacts Considering Spectral Variability [PDF]

ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Painted artefacts, such as murals and paintings, are the treasures of human civilization. Pigment is an important component of their surfaces. It is crucial to study the composition and proportion of pigments on the surface of painted artefacts for the ...
Y. Wang, Y. Wang, S. Lyu, S. Lyu, B. Ning, D. Yan, M. Hou, M. Hou, P. Sun, P. Sun, L. Li   +10 more
doaj   +1 more source

Establishing an Apheresis Medicine Program in a Resource‐Constrained Setting: A 5‐Year Experience From Lagos, Nigeria

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Establishing a comprehensive apheresis medicine program in a resource‐constrained setting presents significant structural, financial, and logistical challenges. Despite the growing clinical importance of apheresis services globally, published experience from sub‐Saharan Africa remains sparse.
Folasade Adelekan‐Popoola, Shakirat Gold‐Olufadi, Olufunto Olufela Kalejaiye, Abdullateef Ogala, Rasheed A. Balogun   +4 more
wiley   +1 more source

Seasonal and interannual variability of North American isoprene emissions as determined by formaldehyde column measurements from space [PDF]

, 2003
Formaldehyde (HCHO) columns measured from space by solar UV backscatter allow mapping of reactive hydrocarbon emissions. The principal contributor to these emissions during the growing season is the biogenic hydrocarbon isoprene, which is of great ...
Chance, K. V., Abbot, Dorian S, Palmer, Paul I, Guenther, Alex, Palmer, P. I., Jacob, Daniel J, Guenther, A., Martin, Randall V, Chance, Kelly V, Abbot, D. S., Martin, R. V., Jacob, D. J.   +11 more
core   +1 more source