Results 51 to 60 of about 1,228,728 (251)

RGB generation by four-wave mixing in small-core holey fibers

, 2007
We report the generation of white light comprising red, green, and blue spectral bands from a frequency-doubled fiber laser by an efficient four-wave mixing process in submicron-sized cores of microstructured holey fibers.
Horak, P., Dupriez, P., Poletti, F., Petrovich, M.N., Jeong, Y., Nilsson, J., Richardson, D.J., Payne, D.N.   +7 more
core   +1 more source

Disordered but rhythmic—the role of intrinsic protein disorder in eukaryotic circadian timing

FEBS Letters, EarlyView.
Unstructured domains known as intrinsically disordered regions (IDRs) are present in nearly every part of the eukaryotic core circadian oscillator. IDRs enable many diverse inter‐ and intramolecular interactions that support clock function. IDR conformations are highly tunable by post‐translational modifications and environmental conditions, which ...
Emery T. Usher, Jacqueline F. Pelham
wiley   +1 more source

Research on Module Layout and Module Coverage of an Automobile Exhaust Thermoelectric Power Generation System

Energies, 2022
Due to the low efficiency of thermoelectric generators (TEGs), many scholars have focused on the structural optimization of TEGs rather than on the optimization of the layout of thermoelectric modules.
Weiqi Zhou, Jiasheng Yang, Qing Qin, Jiahao Zhu, Shiyu Xu, Ding Luo, Ruochen Wang   +6 more
doaj   +1 more source

Efficiency at maximum power of thermally coupled heat engines

, 2012
We study the efficiency at maximum power of two coupled heat engines, using thermoelectric generators (TEGs) as engines. Assuming that the heat and electric charge fluxes in the TEGs are strongly coupled, we simulate numerically the dependence of the ...
C. Goupil, H. Ouerdane, I. I. Novikov, I. I. Novikov, J. Yvon, P. Chambadal, Ph. Lecoeur, S. Carnot, S. R. de Groot, Y. Apertet   +9 more
core   +1 more source

Time after time – circadian clocks through the lens of oscillator theory

FEBS Letters, EarlyView.
Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo, Carolin Ector, Hanspeter Herzel   +2 more
wiley   +1 more source

Shaping the light transmission through a multimode optical fibre : complex transformation analysis and applications in biophotonics [PDF]

, 2011
Funding: UK Engineering and Physical Sciences Research Council and the University of St Andrews for funding.We present a powerful approach towards full understanding of laser light propagation through multimode optical fibres and control of the light at ...
Cizmar, Tomas, Dholakia, Kishan
core   +2 more sources

The newfound relationship between extrachromosomal DNAs and excised signal circles

FEBS Letters, EarlyView.
Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley   +1 more source

Wide-Area Distributed Photovoltaic Power Generation Monitoring and Output Estimation

Zhongguo dianli, 2020
In order to accurately evaluate the impact of photovoltaic output on the operation of power system, get the real-time data of distributed generation, and provide the real-time operation status of power grid for dispatching decision-making, the wide area ...
Zheyi PEI, Zhifeng LIANG, Weihua LU, Xintong LI, Zhenhao WANG   +4 more
doaj   +1 more source

High energy green nanosecond and picosecond pulse delivery through a negative curvature fiber for precision micro-machining [PDF]

, 2015
In this paper we present an anti-resonant guiding, low-loss Negative Curvature Fiber (NCF) for the efficient delivery of high energy short (ns) and ultrashort (ps) pulsed laser light in the green spectral region.
Carter, Richard M., Hand, Duncan P., Jaworski, Piotr, Knight, Jonathan C., Shephard, Jonathan D., Yu, Fei   +5 more
core   +1 more source

Conserved structural motifs in PAS, LOV, and CRY proteins regulate circadian rhythms and are therapeutic targets

FEBS Letters, EarlyView.
Cryptochrome and PAS/LOV proteins play intricate roles in circadian clocks where they act as both sensors and mediators of protein–protein interactions. Their ubiquitous presence in signaling networks has positioned them as targets for small‐molecule therapeutics. This review provides a structural introduction to these protein families.
Eric D. Brinckman, Anna E. Lester, Brian D. Zoltowski   +2 more
wiley   +1 more source