Results 21 to 30 of about 19,243,848 (252)
Numerous earth observation data obtained from different platforms have been widely used in various fields, and geometric calibration is a fundamental step for these applications.
Niangang Jiao, Feng Wang, Hongjian You
doaj +1 more source
The high-precision geometric positioning of optical remote sensing satellites is the prerequisite to determine the application capability of satellite image products.
Qingyang Li +5 more
doaj +1 more source
Network model of on-chip antennas [PDF]
A Network model of an ultra-wide band, intra-chip wireless link is presented. Numerical data of Z-parameters, obtained from full wave simulation of the structure, are used to obtain a rational function representation via the Vector Fitting procedure ...
F. Mukhtar, H. Yordanov, P. Russer
doaj +1 more source
Sparse Rational Polynomial Coefficient Estimation Method via Low-Rank Matrix Constraint
The rational function model (RFM) is an important general imaging model in remote sensing image geometric processing, which is composed of many rational polynomial coefficients (RPCs). However, due to the correlation among the high-order polynomials, the
Congzhen Hu +5 more
doaj +1 more source
A Study on the Direct Optimization of a Rational Function Model for High-Resolution Satellite Images
Due to the influence of factors such as satellite jitters, orbital errors, star sensor errors, and satellite clock errors, significant geometric systematic errors often exist among multi-view satellite images.
Danchao Gong, Yilong Han, Xu Huang
doaj +1 more source
ABSTRACT Background Numerous international studies have reported declines in new cancer diagnoses, delayed diagnoses and disruptions in cancer treatment following the implementation of COVID‐19 pandemic public health measures, raising concerns that these effects may ultimately contribute to increased cancer mortality.
Friederike Erdmann +8 more
wiley +1 more source
On the Passivity of the Delay-Rational Green’s-Function-Based Model for Transmission Lines
In this paper, we study the delay-rational Green’s-function-based (DeRaG) model for transmission lines. This model is described in terms of impedance representation and it contains a rational and a hyperbolic part.
Antonini G. +3 more
core +2 more sources
Referral Patterns and Diagnostic Timeliness in Pediatric Cancer: A Hospital‐Based Study in Indonesia
ABSTRACT Background Timely diagnosis and treatment are critical for improving survival among children with cancer. In low‐ and middle‐income countries (LMICs), delays are common and may be influenced by fragmented referral pathways and diagnostic limitations.
Nur Melani Sari +5 more
wiley +1 more source
Nowadays, numerous earth-observation data are obtained from different kinds of platforms, in which data from synthetic aperture radar (SAR) sensors and optical sensors account for the vast majority.
Niangang Jiao, Feng Wang, Hongjian You
doaj +1 more source
ABSTRACT Background and Aims Infant bone and soft tissue neoplasms present distinct clinical challenges and lack large‐scale data to inform treatment decisions. This study aims to characterize bone and soft tissue neoplasms in infants in Canada and to compare their outcomes with those of older pediatric patients.
Samuel Sassine +21 more
wiley +1 more source

