Results 61 to 70 of about 6,010 (186)
Positive‐Tone Nanolithography of Antimony Trisulfide with Femtosecond Laser Wet‐Etching
Advanced Functional Materials, Volume 36, Issue 31, 16 April 2026.A butyldithiocarbamic acid (BDCA) etchant is used to fabricate various micro‐ and nanoscale structures on amorphous antimony trisulfide (a‐Sb2S3) thin film via femtosecond laser etching. Numerical analysis and experimental results elucidate the patterning mechanism on gold (reflective) and quartz (transmissive) substrates.
Abhrodeep Dey +12 more
wiley +1 more source
Accurate Ultra-Wideband Array Radar Imaging Using Four-Dimensional Unitary ESPRIT
IEEE Access, 2019 Adaptive signal processing techniques can estimate the directions of arrival (DOAs), ranges, and radial velocities of radar targets with high resolution when applied in the space, frequency, and time domains, respectively.
Kazushi Morimoto +2 more
doaj +1 more source
Knowledge Architecture for Race and Ethnic Group Defining in Learning Health Systems
Learning Health Systems, Volume 10, Issue 2, April 2026.ABSTRACT Previous work affirms access and health care challenges persist for multiple racial groups. Race and ethnicity are socially and politically constructed terms conceived to describe and categorize people hierarchically (race) and describe people from a similar national or regional background also sharing common national, cultural, historical ...
Matthew F. Hudson +3 more
wiley +1 more source
Photoluminescence Enhancement in Erbium Nanoparticles via Controlled Phase Transformation
Small, Volume 22, Issue 24, 27 April 2026.Er‐NPs synthesized by PLAL were thermally treated from 200°C to 1000°C. Annealing at 600°C produced a full transition to the cubic Er2O3 phase and removed non‐radiative surface species. This led to a fivefold increase in PL. The results show how oxidation and phase purity control the optical performance of Er‐NPs.
B. Almohammed +4 more
wiley +1 more source
BMC Infectious DiseasesIn early 2020, no drug had proven efficacy to treat COVID-19 in-patients. This work aimed to describe COVID-19 treatment for in-patients worldwide until June, 2020.
Antoine Bosquet +5 more
doaj +1 more source
International Journal of Antennas and Propagation, 2012 An automatic pairing joint direction-of-arrival (DOA) and frequency estimation is presented to overcome the unsatisfactory performances of estimation of signal parameter via rotational invariance techniques- (ESPRIT-) like algorithm of Wang (2010), which
Wang Xudong +3 more
doaj +1 more source
The Politics of esprit in De l’esprit des lois
Diciottesimo Secolo, 2017 The concept of esprit is central to Montesquieu’s political philosophy. This essay investigates Montesquieu’s usage of the term, focusing on his magnum opus, De l’esprit des lois.
Joshua Bandoch
doaj +1 more source
HIV Medicine, Volume 27, Issue 4, Page 498-512, April 2026.Abstract Introduction A proportion of people living with HIV (PLWH) fail to restore their CD4 count or their CD4/CD8 ratio despite effective antiretroviral therapy (ART). PLWH with immune non‐response (INR) are at a higher risk of both AIDS and non‐AIDS events. The underlying mechanisms of INR remain unclear.
Charlotte Silvestre +2 more
wiley +1 more source
Sparse Array Angle Estimation Using Reduced-Dimension ESPRIT-MUSIC in MIMO Radar
The Scientific World Journal, 2013 Sparse linear arrays provide better performance than the filled linear arrays in terms of angle estimation and resolution with reduced size and low cost. However, they are subject to manifold ambiguity.
Chaozhu Zhang, Yucai Pang
doaj +1 more source
Sensors, 2016 In array signal processing systems, the direction of arrival (DOA) and polarization of signals based on uniform linear or rectangular sensor arrays are generally obtained by rotational invariance techniques (ESPRIT).
Na Wu +3 more
doaj +1 more source