Results 11 to 20 of about 664,460 (300)

An Immunosensor for the Detection of ULBP2 Biomarker

open access: yesMicromachines, 2020
Pancreatic cancer (PC) is a global health problem that features a very high mortality rate. The UL16 binding protein 2 (ULBP2) is a new biomarker for PC detection.
Wen-Chi Yang   +8 more
doaj   +1 more source

Optimal antenna configurations for the BIMA Array [PDF]

open access: yesInternational 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

Enhancing Gain Through Optimal Antenna Element Distribution in a Thinned Array Configuration

open access: yesIEEE Open Journal of Antennas and Propagation, 2023
This paper presents an array thinning approach for a 25-element antenna array arranged in a $5\times5$ grid at 5.4 GHz. Our goal is to eliminate a maximum number of antenna elements with minor gain loss and hence reduce the array size, weight, cost ...
Michael Ortiz   +3 more
doaj   +1 more source

Performance Evaluation of Static PV Array Configurations for Mitigating Mismatch Losses

open access: yesIEEE Access, 2023
Solar photovoltaic (PV) systems are susceptible to power loss caused by environmental factors such as partial shading and temperature changes. To address this issue, PV modules are connected in array configurations. However, these configurations can lead
S. Devakirubakaran   +3 more
doaj   +1 more source

Concentric circles and spiral configurations for large correlator arrays in radio astronomy [PDF]

open access: yes, 2018
Aperture synthesis arrays are commonly used in radio astronomy to take images of radio point sources, with the planned Square Kilometre Array (SKA) being the most common example.
Abidin, Zamri Zainal   +6 more
core   +2 more sources

A Partition Spatial Filtering Method for Acoustic Array Configuration

open access: yesShock and Vibration, 2021
Acoustic array is a ubiquitous tool for locating and quantifying sound sources. However, its effectiveness depends greatly on the array configuration.
Zhihong Liu   +4 more
doaj   +1 more source

Optimization of array configuration [PDF]

open access: yesThe Journal of the Acoustical Society of America, 1987
The purpose of this study was to determine the optimal configuration of 2-, 3-, and 4- element hydrophone arrays. The noise field was taken to be isotropic and the arrays were constrained to lie in a horizontal plane. It was determined that the optimal configuration is a linear array though, as is the case of the 4-element array, not necessarily ...
openaire   +3 more sources

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

open access: yesIET 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   +3 more
doaj   +1 more source

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

open access: yesSensors, 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   +5 more
doaj   +1 more source

Testing for the programming circuit of LUT-based FPGAs [PDF]

open access: yes, 1997
The programming circuit of look-up table based FPGAs consists of two shift registers, a control circuit and a configuration memory (SRAM) cell array. Because the configuration memory cell array can be easily tested by conventional test methods for RAMs ...
Fujiwara, Hideo   +4 more
core   +1 more source

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