Results 11 to 20 of about 5,232 (217)

Quasi-2D lead halide perovskite gain materials toward electrical pumping laser

Nanophotonics, 2021
Quasi two-dimensional (2D) lead halide perovskite materials have shown outstanding performance in various photoelectric devices, including perovskite light-emitting diodes (LEDs) and perovskite optical pumping lasers.
Zhao Chenyang, Qin Chuanjiang
doaj   +1 more source

ADMINISTRATIVE AND LEGAL BASIS OF THE PARTICIPATION OF THE DBR IN INFORMA- TION RELATIONS [PDF]

Alfred Nobel University Journal of Law
The article examines the administrative and legal foundations of the participation of the State Bureau of Investigation (SBI) in Ukraine’s informational relations, with a focus on contemporary challenges and development prospects for this institution ...
Oleksandr М. Moskalyk
doaj   +1 more source

A Comparison of Top Distributed Bragg Reflector for 1300 nm Vertical Cavity Semiconductor Optical Amplifiers Based on III–V Compound

ARO-The Scientific Journal of Koya University, 2021
In this work, the design of GaAs/AlGaAs distributed Bragg reflector (DBR) has been implemented for 1300 nm vertical cavity semiconductor optical amplifiers (VCSOAs) for optical fiber communication applications. The top DBR period and Al concentration are
Shawbo A. Abubaker
doaj   +1 more source

PROPUESTA DE UN SISTEMA NEURO-DBR Y SU APLICACIÓN EN LA PREDICCIÓN DE LA SERIE DE TIEMPO DE LORENZ

Ciencia e Ingeniería Neogranadina, 2010
Este artículo propone la predicción de la serie de tiempo Lorenz usando un nuevo método conocido como sistema Neuro-DBR y su comparación, con un diseño Neurodifuso convencional.
Lina Morales Laguado, Helbert Espitia Cuchango, José Soriano Méndez   +2 more
doaj   +3 more sources

Void Hole Avoidance for Reliable Data Delivery in IoT Enabled Underwater Wireless Sensor Networks

Sensors, 2018
Due to the limited availability of battery power of the acoustic node, an efficient utilization is desired. Additionally, the aquatic environment is harsh; therefore, the battery cannot be replaced, which leaves the network prone to sudden failures. Thus,
Arshad Sher, Aasma Khan, Nadeem Javaid, Syed Hassan Ahmed, Mohammed Y Aalsalem, Wazir Zada Khan   +5 more
doaj   +1 more source

Optical engineering of PbS colloidal quantum dot solar cells via Fabry–Perot resonance and distributed Bragg reflectors

Nano Convergence, 2023
A tradeoff between light absorption and charge transport is a well-known issue in PbS colloidal quantum dot (CQD) solar cells because the carrier diffusion length in PbS CQD films is comparable to the thickness of CQD film. We reduce the tradeoff between
Sumin Bae, Matthew Duff, Jun Young Hong, Jung-Kun Lee   +3 more
doaj   +1 more source

InGaN Resonant-Cavity Light-Emitting Diodes with Porous and Dielectric Reflectors

Applied Sciences, 2020
InGaN based resonant-cavity light-emitting diode (RC-LED) structures with an embedded porous-GaN/n-GaN distributed Bragg reflector (DBR) and a top dielectric Ta2O5/SiO2 DBR were demonstrated.
Cheng-Jie Wang, Ying Ke, Guo-Yi Shiu, Yi-Yun Chen, Yung-Sen Lin, Hsiang Chen, Chia-Feng Lin   +6 more
doaj   +1 more source

Dragon blood resin ameliorates steroid-induced osteonecrosis of femoral head through osteoclastic pathways

Frontiers in Cell and Developmental Biology, 2023
Objective: Dragon’s Blood resin (DBR) is a traditional medicinal substance renowned for its diverse pharmacological effects, which consists of potent anti-inflammatory, antioxidant and angiogenic properties.
Yuhao Liu, Liang Mo, Hongduo Lu, Yangwenxiang Wei, Jiahao Zhang, Samuel Bennett, Jiake Xu, Jiake Xu, Chi Zhou, Bin Fang, Zhenqiu Chen   +10 more
doaj   +1 more source

Effect of Dielectric Distributed Bragg Reflector on Electrical and Optical Properties of GaN-Based Flip-Chip Light-Emitting Diodes

Micromachines, 2018
We demonstrated two types of GaN-based flip-chip light-emitting diodes (FCLEDs) with distributed Bragg reflector (DBR) and without DBR to investigate the effect of dielectric TiO2/SiO2 DBR on optical and electrical characteristics of FCLEDs.
Shengjun Zhou, Haohao Xu, Mengling Liu, Xingtong Liu, Jie Zhao, Ning Li, Sheng Liu   +6 more
doaj   +1 more source

Die Blackbox ausleuchten. Potenziale von Design-Based Research für Phasen der Lehrerinnen- und Lehrerprofessionalisierung

Beiträge zur Lehrerinnen- und Lehrerbildung, 2020
Design-Based Research (DBR) wird als Forschungsstil in den letzten Jahren auch im deutschsprachigen Raum verstärkt genutzt. DBR meint die Arbeit mit einem doppelten Erkenntnisinteresse: das Entwickeln von Unterrichtsdesigns für die unterrichtliche ...
Isolde Malmberg
doaj   +1 more source