Results 41 to 50 of about 5,903,017 (263)

Improvement in Color-Conversion Efficiency and Stability for Quantum-Dot-Based Light-Emitting Diodes Using a Blue Anti-Transmission Film

open access: yesNanomaterials, 2018
In this report, a blue anti-transmission film (BATF) has been introduced to improve the color-conversion efficiency (CCE) and the stability of quantum dot (QD) films. The results indicate that the CCE can be increased by as much as 93% using 15 layers of
Jiasheng Li   +5 more
doaj   +1 more source

Size Effect on Shear Behavior of Ultra-high Performance Concrete Beams

open access: yesTaiyuan Ligong Daxue xuebao, 2023
HRB500 steel reinforced ultra-high performance concrete beams with different section sizes were tested to study size effect on shear performance. The experimental phenomena and results of ultra-high performance concrete beams were analyzed.
Xia CAO   +4 more
doaj   +1 more source

Liver organoids: modelling complexity in homeostasis and disease

open access: yesFEBS Letters, EarlyView.
Studying liver in vitro has been challenging because simple 2D cell cultures fail to capture liver's cellular and architectural complexity. To bridge this gap, scientists increasingly use organoids, 3D liver models which better mimic liver composition and function. This review examines recent advances in liver organoid complexity and realism, discusses
Anna M. Dowbaj, Meritxell Huch
wiley   +1 more source

A Denoising Diffusion Probabilistic Model-Based Human Respiration Monitoring Method Using a UWB Radar

open access: yesIET Signal Processing
Real-time respiratory monitoring when sleeping is crucial for sleep apnea, chronic obstructive pulmonary disease, sleep quality assessment, and other issues related to the tracking of human health status.
Ping Wang   +3 more
doaj   +1 more source

Purification Method of Exchangeable Cations of Calcium Bentonite

open access: yesKuangchan zonghe liyong
The properties of bentonite are influenced by the type and content of exchangeable cations. The content of single-type cations can be increased by purification, thereby improving the properties of bentonite (such as the properties of adsorption ...
Xueying PAN   +5 more
doaj   +1 more source

Investigation of Light-Extraction Mechanisms of Multiscale Patterned Arrays With Rough Morphology for GaN-Based Thin-Film LEDs

open access: yesIEEE Access, 2019
Micro-scale patterned arrays and nano-scale rough morphology are promising for improving the light-extraction performance of GaN-based thin film light-emitting diodes (TFLEDs), while the light-extraction mechanisms of the multiscale architectures ...
Zong-Tao Li   +6 more
doaj   +1 more source

Predictive control of permanent magnet synchronous motor based on Super‐Twisting sliding mode

open access: yesEnergy Science & Engineering, 2023
To improve the anti‐interference ability and response speed of the permanent magnet synchronous motor control system and the problem of excessive chattering when the speed loop of the system is controlled by fast second‐order Super‐Twisting sliding mode ...
Jun Hu   +3 more
doaj   +1 more source

Autophagy and mitophagy in pancreatic β‐cell homeostasis and their involvement in diabetes pathophysiology

open access: yesFEBS Letters, EarlyView.
This review focuses on the role of autophagy and mitophagy in maintaining pancreatic β‐cell function and homeostasis. We discuss how genetic defects affecting these pathways contribute to the development of type 1, type 2, monogenic, and gestational diabetes. We further explore their potential as therapeutic targets. Created in BioRender.
Yunkyeong Lee   +2 more
wiley   +1 more source

Research on OPF Control of Three-Phase Four-Wire Low-Voltage Distribution Network considering Uncertainty

open access: yesInternational Transactions on Electrical Energy Systems
As power systems become more complex and uncertain, low-voltage distribution networks face numerous challenges, including three-phase imbalances caused by asymmetrical loads and distributed energy resources.
Rui Wang   +3 more
doaj   +1 more source

Precise Optical Modeling of Phosphor-Converted LEDs With Arbitrary Concentration and Thickness Using Bidirectional Scattering Distribution Function

open access: yesIEEE Photonics Journal, 2018
Phosphor-converted light-emitting diode (pcLED) is one of the most promising methods to generate white light. The interaction of the excitation light with the phosphor in pcLED is a complicated phenomenon, combining light absorption, light conversion ...
Jia-Sheng Li   +5 more
doaj   +1 more source

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