ARTICLES

Filter  
Active filters 0
Remove
  

Refine your searches by:

Collections
Education
Research
Technology
Languages
Pure sciences
Social Sciences
Agronomy and forestry
Literature
Biology
Public health
all records (74)

Languages
English
Spanish
Portuguese
German

Countries
Indonesia
USA
Ukraine
Brazil
South Africa
Canada
Switzerland
Italy
Spain
Austria
all records (76)

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

Filter  
 
188.732  Articles
1 of 18.874 pages  |  10  records  |  more records»
Modern mobile communication signals require power amplifiers able to maintain very high efficiency in a wide range of output power levels, which is a major issue for classical power amplifier architectures. Following the load-modulation approach, efficien... see more

First-order all-pass filter circuits, both non-inverting and inverting, could be the focus of this article, which could include the design and implementation of first-order all-pass filter circuits. Using a standard integrated circuit (IC): AD830, as well... see more

This paper presents the development of a two-stage low noise amplifier (LNA) operating at the S-band frequency that is implemented using the non-simultaneous conjugate match (NSCM) technique. The motivation of this work was to solve the issue of the gain ... see more

This paper deals with the regional input-output analysis and its application to evaluation of the macro-economic impact of expenditures on higher education. Regional input-output tables represent newly developed tool which can be used for the assessment o... see more

With the development and application of Biological chips and sensors, the demand for high-precision broadband driving power is increasingly rigorous. In order to improve the precision and reliability of the driving power, a high precision broadband closed... see more

This study focuses on the sound radiation of a vibrating flat annular plate. The rigorous theoretical considerations deal with sometime-harmonic and axisymmetric vibrations. Three different boundary configurations are considered, i.e. one of the plate’s e... see more

Impedance cardiography (ICG) is a simple and cheap method for acquiring hemodynamic parameters. Unfortunately, not all physiological influences on the ICG signal have yet been identified. In this work, the influence of heart and lung dynamics is analyzed ... see more

This paper presents the results of an experimental investigation of the power input of pitched blade impellers and standard Rushton turbine impellers in a cylindrical vessel provided with four radial baffles at its wall under a turbulent regime of flow of... see more

Complete and accurate spatial magnetic field description is the premise of effectively assessing the power supply capability of a high-speed railway (HSR). Its evaluation indicators are the current distributions and the integrated impedance of traction ne... see more

1 of 18.874 pages  |  10  records  |  more records»