Results 131 to 140 of about 299,628 (304)

Analysis on the laser diode-multimode fiber coupling efficiency

, 2003
A novel screwdriver-like shaping system for the coupling between high-power laser diode and multimode fiber (MMF) is presented. The effect of cutting angle, cutting depth and coupling distance between laser diode and screwdriver-like fiber on the ...
Feng, Z, Lin, B, Zeng, X, An, Y
core  

High-efficiency apodized bidirectional grating coupler for perfectly vertical coupling

, 2019
We propose and experimentally demonstrate an apodized bidirectional grating coupler for high-efficiency perfectly vertical coupling. Through grating apodization, the coupling efficiency (CE) can be notably improved and the parasitic reflections can be ...
Liu, Hongwei, Chen, Xia, Reed, Graham, Li, Hongqiang, Khokhar, Ali, Thomson, David, Yan, Xingzhao, Zhang, Zanyun, Chen, Qian, Huang, Beiju, Chen, Hongda   +10 more
core   +1 more source

Directed evolution of enzymes at the crossroads of tradition and innovation

FEBS Open Bio, EarlyView.
An iterative cycle of data‐driven enzyme optimization comprising four stages: genetic diversification of a template enzyme, expression of protein variants, high‐throughput evaluation, and machine‐learning‐guided redesign of the next variant library.
Maria Tomkova, Andrej Mirossay, Erik Sedlak   +2 more
wiley   +1 more source

Effects of IGFBP4 deficiency on human preadipocyte proliferation and differentiation through the IGF1R/AKT pathway

FEBS Open Bio, EarlyView.
IGFBP4 knockdown (KD) impairs preadipocyte proliferation and is associated with IGF1R protein downregulation and attenuated AKT phosphorylation. The mechanisms by which IGFBP4 KD influences the IGF1R/AKT signaling pathway involve newly synthesized proteins and lysosomal degradation pathways. Created in BioRender.
Yujia Guo, Sandy Richter, Christoph Bach, Wieland Kiess, Anna Kirstein, Diana Le Duc, Antje Garten   +6 more
wiley   +1 more source

Effects of coupling lens on optical refrigeration of semiconductors

, 2008
Optical refrigeration of semiconductors is encountering efficiency difficulties caused by nonradiative recombination and luminescence trapping. A commonly used approach for enhancing luminescence efficiency of a semiconductor device is coupling a lens ...
Ding, K, Zeng, YP, Ding, K, Chinese Acad Sci, Inst Semicond, Novel Mat Ctr, Beijing 100083, Peoples R China. 电子邮箱地址: dingkai@red.semi.ac.cn   +2 more
core  

From energy provision to protein synthesis: Tunnelling nanotubes as mediators of intercellular metabolic cooperation in cancer

FEBS Open Bio, EarlyView.
The cytoskeleton‐mediated transport of mitochondria via tunnelling nanotubes restores respiration, increases ATP production, rescues cells from apoptosis, activates the AKT/mTOR signalling pathway, promotes cell migration and invasiveness, contributes to cancer progression and treatment resistance.
Stanislava Martínková, Jan Trnka
wiley   +1 more source

Interaction between carbon emission efficiency and ecological environment from static and dynamic perspectives

Ecological Indicators
Carbon emission efficiency and the ecological environment are key issues in achieving the United Nations Sustainable Development Goals. In this study, the three-stage epsilon-based measurement model and pressure-state-response model were used to ...
Zhenyu Zhang, Jiwei Zhu, Nan Lu, Liu Yang   +3 more
doaj   +1 more source

generator coupling efficiency

Citation: 'generator coupling efficiency' in the IUPAC Compendium of Chemical Terminology, 5th ed.; International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.08480 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual ...
openaire   +1 more source

Coupling Efficiency with Coupling Modes in Active Databases Proofs of lemmas and theorems

, 2007
The paper presents a general framework for handling coupling modes in active databases and discusses the inter-relationships between a set of coupling modes of an application and transaction efficiency.
Avigdor Gal
core  

Coupling efficiency of monolithic, waveguide-integrated Si photodetectors

, 2008
A waveguide-integrated photodetector provides a small-footprint, low-capacitance design that overcomes the bandwidth-efficiency trade-off problem of free space optics.
Hong, Ching-Yin, Ching-yin Hong, Lionel C. Kimerling, Donghwan Ahn, Kimerling, Lionel C., Jurgen Michel, Michel, Jurgen, Ahn, Donghwan   +7 more
core   +1 more source