نتایج جستجو برای: dpca

تعداد نتایج: 106  

Journal: :Applied sciences 2022

When processing track sequences, it is time-consuming and difficult to separate clusters with substantial density variations deal the problem of classic clustering methods mining common flight patterns in airspace. To overcome these issues, this research proposes a clustering-based technique for air traffic trajectory operation patterns. The data are first decoded rebuilt using motion-based tra...

Journal: :IEEE Access 2021

Traditional deceptive jamming methods effectively generate false targets against three-channel synthetic aperture radar ground moving target indication (SAR GMTI). However, effectiveness of traditional is limited to azimuth distance between two jammers. When the requirement not satisfied, amplitude coefficients will be too high used by To overcome this disadvantage, a novel multiple-jammer meth...

Journal: :Minerals 2021

In this research, airborne geophysical and remote sensing datasets were integrated for gold potentiality mapping (GPM) over the Atalla area in Central Eastern Desert, Egypt. Utilizing aeromagnetic data, detailed structural complexity maps constructed using center exploration targeting (CET) procedure. Then, spectrometric gamma-ray data primarily located hydrothermally altered tracts with discri...

Journal: :Phytochemistry 2005
Ana Luisa Anaya Martha Macías-Rubalcava Rocío Cruz-Ortega Clara García-Santana Perla N Sánchez-Monterrubio Blanca E Hernández-Bautista Rachel Mata

Aqueous leachates and a CHCl3-MeOH (1:1) extract of roots of Stauranthus perforatus showed a significant phytotoxic effect on Amaranthus hypochondriacus and Echinochloa crus-galli. Bioassay-directed fractionation of the active organic extract led to the isolation and characterization of ten secondary metabolites, which included two pyranocoumarins [xanthyletin (1) and 3-(1',1'-dimethylallyl)-xa...

2018
Rui Zhou Jinping Sun Yuxin Hu Yaolong Qi

Synthetic aperture radar (SAR) equipped on the hypersonic air vehicle in near space has many advantages over the conventional airborne SAR. However, its high-speed maneuvering characteristics with curved trajectory result in serious range migration, and exacerbate the contradiction between the high resolution and wide swath. To solve this problem, this paper establishes the imaging geometrical ...

2005
I. Sikaneta

This paper introduces and analyses a technique that implements CFAR detection and parameter estimation of moving targets in urban terrain. Firstly, it presents a probability distribution to use with the product model. This model helps to account for the extremely high inhomogeneity encountered in urban terrain. Along with the proposed distribution, the paper then discusses the numerical computa...

2011
Wieland Brendel Ranulfo Romo Christian K. Machens

In many experiments, the data points collected live in high-dimensional observation spaces, yet can be assigned a set of labels or parameters. In electrophysiological recordings, for instance, the responses of populations of neurons generally depend on mixtures of experimentally controlled parameters. The heterogeneity and diversity of these parameter dependencies can make visualization and int...

Journal: :Inf. Sci. 2018
Jianguo Chen Kenli Li Huigui Rong Kashif Bilal Nan Yang Keqin Li

It is crucial to provide compatible treatment schemes for a disease according to various symptoms at different stages. However, most classification methods might be ineffective in accurately classifying a disease that holds the characteristics of multiple treatment stages, various symptoms, and multi-pathogenesis. Moreover, there are limited exchanges and cooperative actions in disease diagnose...

2008
Gintautas Palubinskas

Detection of traffic congestion is an important issue both for the transportation research community and everyday life of the motorists. A new type of information is needed for a more efficient use of road networks. Remote sensing sensors installed on aircrafts or satellites enable data collection for various traffic applications over large areas, especially areas not covered with other, e.g. t...

Journal: :Research in Computing Science 2015
Joseph Cuevas Eduardo López Yesenia Hernández Marcos Martínez

Resumen. Las personas que padecen ERC (Enfermedad Renal Crónica) deben estar en revisión constante para mantener un control y seguimiento de la enfermedad y así evitar complicaciones. Tomando en cuenta la importancia del control de un paciente con ERC bajo un tratamiento de DP (Diálisis Peritoneal), en este trabajo se plantea el análisis y diseño de un sistema de telemonitorización que lleve a ...

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