Results 271 to 280 of about 95,680 (349)

Fast and Simple Series Resistance Imaging for Tandem Solar Cells Using Differential Luminescence

open access: yesSolar RRL, EarlyView.
This article presents a method for imaging the series resistance of subcells in a multijunction device. It requires few input properties, no current or voltage calibration and only three measured images. Validated on single junction and multijunction perovskite‐based devices, this method provides a practical tool for advancing photovoltaic research and
Cyril Leon   +5 more
wiley   +1 more source

Portable Radar for Noncontact Heart Rate Monitoring and Estrus Detection in Dairy Cows

open access: yesIEEJ Transactions on Electrical and Electronic Engineering, EarlyView.
This study introduces a portable radar system for real‐time monitoring of respiratory and heart rates in dairy cows. It uses millimeter‐wave Frequency Modulated Continuous Wave (FMCW) radar to perform noncontact physiological sensing, reducing behavioral disturbance. The radar system's design prioritizes portability, cost‐effectiveness, and robustness,
Yingxiu Li   +7 more
wiley   +1 more source

Nanobody–chlorin e6 conjugate for Nectin‐4‐mediated tumor targeting and enhanced photodynamic therapy

open access: yesVIEW, EarlyView.
Nectin‐4 is frequently overexpressed in solid tumors, yet many PDT photosensitizers show poor water solubility and nonspecific uptake. A Nectin‐4‐targeted nanobody–chlorin e6 conjugate (NPC) improves aqueous solubility and selectively accumulates in Nectin‐4‐positive tumor cells.
Haodian Wan   +10 more
wiley   +1 more source

A Probability‐Aware AI Framework for Reliable Anti‐Jamming Communication

open access: yesCAAI Transactions on Intelligence Technology, EarlyView.
ABSTRACT Adversarial jamming attacks have increased on communication systems, causing distortion and threatening transmissions. Typical attacks rely on traditional, well‐defined cryptographic protocols and frequency‐hopping techniques. Nevertheless, these techniques become vulnerable when facing intelligent jammers.
Tawfeeq Shawly, Ahmed A. Alsheikhy
wiley   +1 more source

Ultrabroadband Spacetime Nanoscopy of Terahertz Polaritons in a van der Waals Cavity. [PDF]

open access: yesSmall
Wehmeier L   +17 more
europepmc   +1 more source

Research on Ultra‐Wideband Pulse Current Method for DC Partial Discharge Measurement

open access: yesHigh Voltage, EarlyView.
ABSTRACT The conventional pulse current method is commonly used in AC or DC withstand voltage tests with partial discharge (PD) monitoring. Because of its relatively narrow measurement bandwidth, this method tends to ignore critical information in PD waveforms, making it difficult to eliminate pulse‐type interference under DC voltage conditions, where ...
Kaining Hou   +4 more
wiley   +1 more source

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