Results 121 to 130 of about 735,881 (338)
, 1985 This thesis presents the results of an experimental investigation of the finline horn antennas. Both near-field and far-field measurements were made for horns with different physical and electrical parameters. This revealed the influence of the various parameters on the radiation pattern and led to a design which appears to be close to the optimum with
openaire +1 more source
Journal of Clinical Ultrasound, EarlyView.This study is to assess the predictive value of the modified lung ultrasound score (mLUS) for late respiratory diseases in premature infants born before 32 weeks of gestation. It is recommended that the use of mLUS scoring be promoted in clinical practice for the early screening of high‐risk preterm infants.
Shuang Zheng +4 more
wiley +1 more source
Feasibility Study on Additive Manufacturing of Feed Horn Operating in D-Band
SensorsThis paper presents the outcomes of a feasibility study on the manufacturing of D-band horn antennas through the Low Power Bed Fusion process. Different prototypes have been realized and tested, showing nice results in terms of the co-polarization ...
Giuseppe Addamo +4 more
doaj +1 more source
Absolute gain measurement by the image method under mismatched condition [PDF]
Purcell's image method for measuring the absolute gain of an antenna is particularly attractive for small test antennas. The method is simple to use and utilizes only one antenna with a reflecting plane to provide an image for the receiving antenna ...
Baddour, Maurice F., Lee, Richard Q.
core +1 more source
Journal of Magnetic Resonance Imaging, EarlyView.ABSTRACT Background Elexacaftor/tezacaftor/ivacaftor (ETI) is a current standard therapy for pediatric cystic fibrosis (CF). Multiple‐breath washout 129Xe MRI (MBW Xe‐MRI) is improved following 1 month of treatment. However, the utility of MBW Xe‐MRI over extended ETI treatment and its comparison to single‐breath Xe‐MRI and pulmonary function tests ...
Faiyza S. Alam +6 more
wiley +1 more source
IET Microwaves, Antennas & PropagationA gain enhancement technique in pyramidal horn antenna using a slot type band pass frequency selective surface (FSS) is presented. The horn antenna without FSS has achieved a measured gain of 10.5 dBi at 10 GHz, while the antenna with the single layer ...
Kalyan Mohan Patnaik +1 more
doaj +1 more source
Millimeter wave experiment for ATS-F [PDF]
A detailed description of spaceborne equipment is provided. The equipment consists of two transmitters radiating signals at 20 and 30 GHz from either U.S. coverage horn antennas or a narrow beam parabolic antenna. Three modes of operation are provided: a
Green, J. S. +2 more
core +1 more source
International Journal of Climatology, EarlyView.Results indicate that, an increase in global warming level from 1.5°C to 2°C is likely to induce on the one hand a 3‐fold increase in the frequency of occurrence of dry and warm compound events, and on the other hand a 2‐fold increase in their duration, over West, Central, South‐West, and South‐East Africa, intensifying droughts through reduced ...
Thierry C. Fotso‐Nguemo +6 more
wiley +1 more source
Phase error and associated cross-polarization effects in cassegrainian-fed microwave antennas [PDF]
Phase error and cross-polarization effects in Cassegrainian and microwave ...
Rusch, W. V. T.
core +1 more source
Assessing Past and Future Temperature‐ and Precipitation‐Based Indicators in the Republic of Yemen
International Journal of Climatology, EarlyView.For the first time in the literature, this work assesses the past and future climatic trends over Yemen, a highly vulnerable country for which science‐based, high‐quality information for the development of climate change adaptation plans was not available until now.
Jorge Alvar‐Beltrán +5 more
wiley +1 more source