ARTICLES

Filter  
Active filters 0
Remove
  

Refine your searches by:

Collections
Education
Social Sciences
Technology
Biology
Public health
Pure sciences
Research
Medicine / Sub specialtie
Environment
Literature
all records (75)

Languages
English
Portuguese
Spanish
German
French

Countries
Indonesia
USA
Brazil
Ukraine
Spain
Italy
Colombia
South Africa
Mexico
India
all records (74)

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

Filter  
 
63.469  Articles
1 of 6.348 pages  |  10  records  |  more records»
An ultra wide-band antenna fed by a microstrip line with a U-shaped tuning stub has beendeveloped which provides an impedance bandwidth of 7.2 GHz corresponding to 118 per cent(S11 < –10 dB). The radiation pattern of the antenna is bidirectional. Detai... see more

Ultra Wide Band (UWB) microstrip antenna designed using textile materials for Wireless Body Area Network (WBAN) applications is presented. The antenna consists of stairs patches and a ground plane with a dimension of 30 mm x 30 mm. Simulation is done by c... see more

This paper aims to accurately locate underground personnel in coal mines. For this purpose, an underground personnel positioning platform was established on the wireless sensor network (WSN). Specifically, the ultra-wide band (UWB) and the time difference... see more

In the article an off-body narrowband and ultra-wide band channel model for body area networks in a ferryboat environment is described. Considering the limited number of publications there is a need to develop an off-body channel model, which will facilit... see more

Microwave ultra-wide band UWB imaging system is a contemporary biomedical imaging technology for early detection of breast cancers. This imaging system requires the development of breast phantoms for experimental data analysis. In order to obtain realisti... see more

Los sistemas UWB (ultra-wide band) transmiten señales a baja potencia a través de canales de comunicaciones que operan en entornos cerrados y en distancias cortas, lo que origina múltiples trayectorias de propagación. Además, el ruido que afecta a estos c... see more

Wireless communication applications with large signal bandwidth are developed tremendously in recent times. Due to large bandwidth the wide band communication causes huge power consumption and signal deterioration after addition of narrow band interferenc... see more

The design and performance of coplanar waveguide fed modified circular patch antenna for possible application in ultra wideband communication systems with band rejection for upper wireless local area network band (5.15 GHz - 5.85 GHz) is reported. This an... see more

Breast cancer is the transformation of normal cells in the breast area into a malignant tumor, which is the second largest disease as a cause of death for women. Early detection is one way to avoid significant risks in breast cancer.  X-ray mammograp... see more

1 of 6.348 pages  |  10  records  |  more records»