Results 201 to 210 of about 288,603 (325)

Effect of Inhomogeneous Temperature in Chip‐Scale Infrared Thermal Sources: A Revisited Blackbody Radiation Formula with Experimental Validation

open access: yesAdvanced Electronic Materials, EarlyView.
Revisited Black‐body radiation formula accounting for nonuniform temperature is proposed for calibration of planar thermal light sources. Calibration of optical power is based on measurement of the highest and lowest temperatures. Abstract Miniature and low‐cost light sources are highly desirable for numerous optical microsystems.
Shady R. Labib   +5 more
wiley   +1 more source

Non‐Uniform Space‐Time‐Coding Modulation for Low‐Complexity Diagnostics of Reconfigurable Intelligent Surfaces

open access: yesAdvanced Electronic Materials, EarlyView.
A diagnostic method for reconfigurable intelligent surfaces (RIS) based on non‐uniform space‐time‐coding modulation is presented. Fault localization is achieved via amplitude‐only spectral measurements, eliminating the need for complex signal processing. A one‐to‐one mapping between harmonic components and RIS elements enables accurate detection.
Xiao Qing Chen   +8 more
wiley   +1 more source

Current Advances in i‐MAX Phases and their Two Dimensional Derivative i‐MXenes: Challenges and Opportunities

open access: yesAdvanced Electronic Materials, EarlyView.
This review presents a comprehensive overview of i‐MAX phases and their 2D derivatives, i‐MXenes. It highlights recent progress in experimental studies and theoretical modeling, while examining their electronic, optical, vibrational, mechanical, piezoelectric, magnetic, and electrochemical properties.
Nisha H. Makani   +4 more
wiley   +1 more source

Two relations for generalized discrete Fourier transform coefficients

open access: yesBulletin of the Polish Academy of Sciences: Technical Sciences, 2018
openaire   +1 more source

Multiscale Fourier transform multiple instance learning for the Gleason grading of prostate cancer from whole-slide images. [PDF]

open access: yesQuant Imaging Med Surg
Xie Z   +9 more
europepmc   +1 more source

Advancing Energy Materials by In Situ Atomic Scale Methods

open access: yesAdvanced Energy Materials, Volume 15, Issue 11, March 18, 2025.
Progress in in situ atomic scale methods leads to an improved understanding of new and advanced energy materials, where a local understanding of complex, inhomogeneous systems or interfaces down to the atomic scale and quantum level is required. Topics from photovoltaics, dissipation losses, phase transitions, and chemical energy conversion are ...
Christian Jooss   +21 more
wiley   +1 more source

Stability of Organic Photovoltaics: From Root Causes to Advanced Analytical Techniques

open access: yesAdvanced Energy Materials, EarlyView.
This review explains the causes and mechanisms of degradation in organic photovoltaics (OPVs). It explores how various factors, including heat, light, oxygen, and inherent material properties, influence OPV stability. The study categorizes degradation pathways and analyzes their impact on device performance, providing insights into the fundamental ...
Yelim Choi   +6 more
wiley   +1 more source

Optimization by decoded quantum interferometry. [PDF]

open access: yesNature
Jordan SP   +8 more
europepmc   +1 more source

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