Results 21 to 30 of about 1,620,370 (293)

An Inclusive Survey on Array Antenna Design for Millimeter-Wave Communications

IEEE Access, 2019
The enormous growth of wireless data traffic in recent years has made the millimeter-wave (mm-wave) technology as a good fit for high-speed communication systems. Extensive works are continuing from the device to system, to the radio architecture, to the
Saswati Ghosh, Debarati Sen
doaj   +1 more source

A new array extension configuration method based on nesting and minimum redundancy

IET Radar, Sonar & Navigation, 2023
While the uniform linear array (ULA) is a well‐known array configuration being widely used in various practical application scenarios, it also encounters numerous challenges in the field of direction‐of‐arrival (DOA) estimation.
He Ma, Xingpeng Mao, Xiuhong Wang, Yang Gao   +3 more
doaj   +1 more source

Analysis of Passive Partial Shading Mitigation Technique for PV Array [PDF]

Journal of Renewable Energy and Environment
In the present day, a significant portion of the world's energy demand can be satisfied through the utilization of renewable energy sources. Solar energy, in particular, holds a pivotal position owing to its numerous merits. However, it faces a challenge
Santosh B, Mohamed Ansari M, Kantarao P.
doaj   +1 more source

Direction of Arrival Estimation of Generalized Nested Array via Difference–Sum Co-Array

Sensors, 2023
To address the weakness that the difference co-array (DCA) only enhances the degrees of freedom (DOFs) to a limited extent, a new configuration called the generalized nested array via difference–sum co-array (GNA-DSCA) is proposed for direction of ...
Yule Zhang, Guoping Hu, Hao Zhou, Juan Bai, Chenghong Zhan, Shuhan Guo   +5 more
doaj   +1 more source

Optimal antenna configurations for the BIMA Array [PDF]

International Astronomical Union Colloquium, 1991
AbstractWe attempt to determine optimal configurations of six antennas for the proposed Berkeley Illinois Maryland Array. The instrumental response is used as a performance measure. A two dimensional sine function is chosen as the ideal beam, supported by theoretical considerations.
Thatte, N, Welch, W
openaire   +2 more sources

Selective stimulation of rat sciatic nerve using an array of mm-size magnetic coils: a simulation study

Healthcare Technology Letters, 2019
This work proposes and computationally investigate the use of magnetic neural stimulation as an alternative to electrical stimulation to achieve selective activation of rat sciatic nerve.
Pragya Kosta, David J. Warren, David J. Warren, Gianluca Lazzi   +3 more
doaj   +1 more source

A Brassica exon array for whole-transcript gene expression profiling [PDF]

, 2010
Affymetrix GeneChip® arrays are used widely to study transcriptional changes in response to developmental and environmental stimuli. GeneChip® arrays comprise multiple 25-mer oligonucleotide probes per gene and retain certain advantages over direct ...
King Graham J., Broadley, MR, May Sean T., John P. Hammond, Bowen, H. C., Bowen, HC, Hammond, J. P., Lochlainn, Seosamh O., Neil S Graham, Philip J White, Graham J. King, Broadley, Martin R., Ó Lochlainn Seosamh, May, ST, Hammond, John P., Graham, NS, Love Christopher G., Christopher G Love, Helen C. Bowen, Graham, N. S., Sean T. May, Philip J. White, Christopher G. Love, Graham, Neil S., O Lochlainn, S., Hammond John P., White, PJ, Graham J King, Ó Lochlainn, Seosamh, May, S. T., Hammond, JP, Love, Christopher G., Love, CG, Helen C Bowen, John P Hammond, Seosamh O Lochlainn, King, GJ, King, G. J., King, Graham J., Broadley, M. R., Broadley Martin R., May, Sean T., Bowen Helen C., Martin R. Broadley, Sean T May, Martin R Broadley, White, P. J., King , Graham J., Love, C. G., Neil S. Graham, White Philip J., White, Philip J., Graham Neil S., Lochlainn, SO, Bowen, Helen C.   +54 more
core   +1 more source

An investigation into inconsistencies between theoretical predictions and microphone array measurements of railway rolling noise [PDF]

, 2007
Theoretical models, such as TWINS, and microphone array measurements have been widely used to gain better understanding of rolling noise. However, the array measurements are often inconsistent with the TWINS predictions and give less prominence to the ...
Kitagawa, Toshiki
core   +1 more source

L-Shaped Sparse Array Structure for 2-D DOA Estimation

IEEE Access, 2020
In order to improve the performance of two-dimensional (2-D) direction-of-arrival (DOA) estimation, an L-shaped sparse array structured by two new sparse linear arrays is proposed. Each part of the proposed L-shaped array is used for one-dimensional (1-D)
Fan Wu, Fei Cao, Xiaogang Ni, Chong Chen, Yanhong Zhang, Jianfeng Xu   +5 more
doaj   +1 more source

Status and Challenges of Marine Current Turbines: A Global Review

Journal of Marine Science and Engineering
Over the past few decades, marine current energy utilization has transitioned from conceptual demonstrations to industrial-scale prototypes. This progression now approaches a crucial phase emphasizing the need for industrialization and commercialization.
Yajing Gu, Tian Zou, Hongwei Liu, Yonggang Lin, He Ren, Qingjun Li   +5 more
doaj   +1 more source