Results 231 to 240 of about 236,478 (267)

Microstrip antenna for vehicular communications with improved axial ratio band

2011 IEEE EUROCON - International Conference on Computer as a Tool, 2011
The use of microstrip antennas has grown in wireless communications in last few years. Due to their characteristics, simplicity and low cost of production, they allow the development of high quality and high efficiency antennas in diverse applications. The dedicated short range communications (DSRC) widely used in vehicular communications is one of the
Tiago Varum, João Nuno Matos, Pedro Pinho, Ricardo Abreu   +3 more
openaire   +1 more source

An axial flow aerowindow for large pressure ratios

13th Fluid and PlasmaDynamics Conference, 1980
The paper describes an aerodynamic window which efficiently utilizes the momentum of the window working gas by directing the supersonic stream axially, against the pressure differential. The concept was experimentally validated with the experimental window withstanding a 1000:1 pressure differential at a relative leak rate of 4-5% the experimental ...
C. KNIGHT, P. SINGH
openaire   +1 more source

Axial ratios of MX compounds with the wurtzite structure

Materials Research Bulletin, 1976
Abstract The stability of the hexagonal wurtzite crystal structure in MX compounds is very sensitively related to unit cell axial ratio (c/a). Those compounds with a stable sphalerite modification have wurtzite structures with axial ratios greater than the ideal value (1.6330) whereas those not having a stable sphalerite modification generally have ...
openaire   +1 more source

Axial length to corneal curvature ratio moderates the effect of corneal reshaping on axial growth in orthokeratology

Ophthalmic and Physiological Optics
Abstract Purpose To evaluate the association between summed relative corneal refractive power (sRCRP) and age‐adjusted axial length growth (aALG) in children undergoing orthokeratology (OK), and to determine whether this relationship is moderated by the axial length to corneal curvature (AL/K ...
Liuyun Chong, Ying Zhu, Hua Bi, Weiping Lin, Tianpu Gu, Na Li, Bei Du, Yifan Li, Bin Zhang, Ruihua Wei   +9 more
openaire   +2 more sources

An axial-to-axial chirality transfer strategy for atroposelective construction of C–N axial chirality

CheM, 2021
Ze-Shui Liu, Pei-Pei Xie, Yu Hua
exaly  

Axial ratios of spiral antennas

1981 Antennas and Propagation Society International Symposium, 2005
H. Nakano, J. Yamauchi
openaire   +1 more source

Insight into the Mechanism of Axial Ligands Regulating the Catalytic Activity of Fe–N4 Sites for Oxygen Reduction Reaction

Advanced Energy Materials, 2022
Kuangmin Zhao, Suqin Liu, Yuyang Li
exaly  

Dynamic Activation of Adsorbed Intermediates via Axial Traction for the Promoted Electrochemical CO2 Reduction

Angewandte Chemie - International Edition, 2021
Yu Wang, Xiahan Sang, Wanzhen Zheng
exaly  

On the behaviour of flattened tubular Bi-axial and Tri-axial braided composites in tension

Composite Structures, 2021
S L Ogin, P Potluri
exaly  

An Antipodal Antenna with Improved Axial Ratio Bandwidth

IETE Journal of Research, 2022
R. Dhara, S. Yadav, S. Mahato, M. M. Sharma, M. C. Govil   +4 more
openaire   +1 more source