Results 121 to 130 of about 60,161 (325)

Towards Contactless Daylight Photoluminescence of PV Strings During Operation by Electrical Modulation

open access: yesProgress in Photovoltaics: Research and Applications, EarlyView.
dPL usually requires two states (ON/OFF) to distinguish light from the panels from ambient light. dPLS(N): an electronic device forces a sub‐string of S‐N panels (a string of S panels) to work at two different points on the I‐V curve. In this example (S = 20), dPL20(6) shows a perfect square modulation of the current intensity throughout the ...
C. Terrados   +5 more
wiley   +1 more source

Do Nucleating Agents or Processing Methods Affect the Thermal Transport in RacoPP?

open access: yesJournal of Polymer Science, EarlyView.
The addition of 1,3,5‐benzenetrisamide as a nucleating agent and processing via injection molding or compression molding of propylene‐ethylene random copolymer (racoPP) can impact the crystallinity and orientation of polypropylene lamellae, whereas the thermal diffusivity of racoPP exhibits remarkable resilience to these changes. ABSTRACT Polypropylene
Ina Klein   +9 more
wiley   +1 more source

Skin‐Conformal Ag Flake‐Decorated PEDOT:PSS Sensor Arrays for Spatially Resolved Body Temperature Monitoring

open access: yesSmall, EarlyView.
Ultrathin, skin‐conformal sensor arrays based on Ag flake–decorated PEDOT:PSS composites enable high‐resolution, spatially resolved temperature mapping across human skin. The optimized composite formulation exhibits high thermal sensitivity (−2.02% °C⁻¹), mechanical durability, and reliable environmental stability, offering a promising platform for ...
Chuljin Hwang   +4 more
wiley   +1 more source

Cutaneous Thermography with Liquid Crystals*†

open access: bronze, 1965
John Thorne Crissey   +2 more
openalex   +1 more source

Thermal Imaging for Quality Control in Thin Silicon‐Based Coatings for Lithium‐Ion Batteries: Defect Detection, Drying Dynamics, and Machine Learning‐Based Mass Loading Estimation

open access: yesSmall Methods, EarlyView.
Thermal imaging offers a non‐destructive approach to quality control in silicon‐based lithium‐ion battery electrodes, enabling the detection of defects, variations in mass loading, and the monitoring of drying dynamics. This study introduces an automated defect‐detection‐algorithm and a machine learning‐based Random Forest model to estimate mass ...
Adil Amin   +4 more
wiley   +1 more source

Methods for Thermal Conductivity and Thermal Diffusivity Measurements of Solid and Molten Mold Fluxes

open access: yessteel research international, EarlyView.
This study examines methods for measuring thermal conductivity and diffusivity in solid and molten slags. Stationary, non‐steady‐state, and transient techniques are analyzed, highlighting their advantages and limitations. Special focus is given to the transient hot‐wire and laser‐flash methods, which provide high accuracy and allow observation of ...
Dmitry Chebykin   +3 more
wiley   +1 more source

Enhancing Thermal Conductivity in Electrospun Polymer Structures for Heat Management Applications

open access: yesSmall Structures, EarlyView.
This review discusses the role of electrospinning in developing thermally conductive polymers for enhanced heat transfer. It covers the fundamentals of heat conduction, electrospinning, and strategies for further enhancing the thermal conductivity of electrospun polymers. Additionally, it highlights measurement methods, current challenges, and emerging
Ahmadreza Moradi, Urszula Stachewicz
wiley   +1 more source

Noncontact Real‐Time Voltage Estimation of a Target Cell in a Photovoltaic Module Using Single‐Wire Clamping

open access: yesIEEJ Transactions on Electrical and Electronic Engineering, EarlyView.
A modulated light irradiation method is proposed for estimating the working voltage of a target cell in a photovoltaic (PV) module without electrical contacts. However, the proposed method requires a 32‐turn coil inserted into a PV module output in series to boost the sensitivity of an alternating current (AC) clamp sensor with low sensitivity, making ...
Yasuyuki Kobayashi   +2 more
wiley   +1 more source

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