ARTICLES

Filter  
Active filters 0
Remove
  

Refine your searches by:

Collections
Education
Research
Social Sciences
Technology
Pure sciences
Economy
Environment
Biology
Public health
Agronomy and forestry
all records (75)

Languages
English
Spanish
Portuguese
German

Countries
Brazil
Indonesia
USA
Spain
Cuba
Ukraine
Mexico
Chile
Colombia
Italy
all records (77)

Years
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
all records (24)

Filter  
 
1.884.130  Articles
1 of 188.413 pages  |  10  records  |  more records»
The analytical solution of the longitudinal wave equation in the MEE circular rod is analyzed by the powerful sine-Gordon expansion method. Sine - Gordon expansion is based on the well-known wave transformation and sine - Gordon equation. In the longitudi... see more

Combustion instability in rocket engines is accompanied by large-amplitude pressure fluctuations in the combustion chamber and (or) intense vibration of the load-bearing structural elements. Unstable operation leads to a decrease in thrust, specific impul... see more

In this study, a wideband circularly polarised (CP) antenna is developed and demonstrated. The antenna comprises of two-layered substrates, the top layer holds a driven patch and eight surrounding parasitic patches of similar dimensions, and substrate int... see more

This paper presents both theoretically and experimentally a new kind of a broadband vibration isolator. It is a table-like system formed by four parallel hybrid periodic rods connected between two plates. The rods consist of an assembly of periodic cells,... see more

A fully vectorial algorithm based on the surface integral equation method for the modelling of leaky modes in photonic crystal fibers (PCFs) by solely solving the complex propagation constants of characteristic equations is presented. It can be used for c... see more

Experiments where the response is a categorical variable are usually carried out in many fields such as agriculture. In addition, in some situations this response has three or more levels without an order between them characterizing a multinomial (nominal... see more

The present paper seeks to enhance the potential damage detention and location of the discrete wavelet transform (DWT) in a thin laminated composite damaged by a signal derived from vibration modes. The DWT-1D is used to spatially identify (x-y plane) the... see more

Context. The problem of achieving multi band functionality and two or more reconfiguration capabilities by using a single antenna for diversified Wireless communication applications. The objective of the work is to model a prototype that combines the abov... see more

1 of 188.413 pages  |  10  records  |  more records»