Results 171 to 180 of about 11,061 (283)

Image resolution and performance analysis of webcams for ground based astronomy

, 2004
We present here a novel concept for achieving real-time super-resolution ground-based imagery for small aperture telescopes. We explore the combination of existing stacking and registration software in conjunction with real-time equation based Data ...
Berrevoets, Cor, Edwards, Matthew, Payne, Jeffrey L., Handley, James, Hons, Alex, Jaenisch, Holger M., Filipovic, Miroslav, White, Graeme L., Oschmann, Jacobus M., Lim, Albert C., Deragopian, Gary, Schneider, Mark   +11 more
core  

Verification of quantum biological predictions for weak magnetic field effects on superoxide in planarians. [PDF]

PNAS Nexus
Rishabh R, Vučković J, Zadeh-Haghighi H, Beane WS, Simon C.   +4 more
europepmc   +1 more source

Impact of Nitrogen Deposition on Carbon and Nitrogen Cycling in Peatlands Under Land‐Use Change

Land Degradation &Development, EarlyView.
ABSTRACT Increasing nitrogen (N) deposition significantly alters carbon and N dynamics in peatlands by affecting microbial processes, enhancing greenhouse gas emissions and nutrient leaching into adjacent waters. However, how peatland conversion for agriculture and forestry influences the fate of added N under elevated atmospheric deposition remains ...
Yujing Deng, Kyle S. Boodoo, Klaus‐Holger Knorr, Stephan Glatzel   +3 more
wiley   +1 more source

The faintest, extremely variable X-ray tidal disruption event from a supermassive black hole binary? [PDF]

Innovation (Camb)
Huang M, Xue Y, Li S, Liu F, Zhu S, Chen JH, Shen RF, Wang Y, Yang Y, Jiang N, Bauer FE, Vignali C, Zou F, Wang J, Filippenko AV, Luo B, Qin C, Quirola-Vásquez J, Wang JX, Fan L, Sun M, Wu Q, Ni Q, Brink TG, Wang T, Zheng W, Shu X, Zheng X, Lin X, Kong X, Wang Y, Luo Y, Lin Z.   +32 more
europepmc   +1 more source

Octave‐Spanning, Deterministic Single Soliton Generation in 4H‐Silicon Carbide‐On‐Insulator Microring Resonators

Laser &Photonics Reviews, EarlyView.
The miniaturization of metrology and precision spectroscopy systems requires robust, turn‐key microcombs with broad bandwidth, low threshold, and high efficiency. Here, high‐Q, dispersion‐engineered microresonators in a high‐confinement nonlinear SiC platform, combined with waveguide‐enabled thermal management and laser cooling, enable deterministic ...
Yi Zheng, Liping Zhou, Chengli Wang, Yanjing Zhao, Ailun Yi, Kresten Yvind, Xin Ou, Minhao Pu   +7 more
wiley   +1 more source

A Stellar magnesium to silicon ratio in the atmosphere of an exoplanet. [PDF]

Nat Commun
Sanchez JA, Smith PCB, Kanumalla K, Welbanks L, Line MR, Pelletier S, Desch S, Young P, Patience J, Bean J, Brogi M, Jaffe D, Mace GN, Mansfield MW, Panwar V, Parmentier V, Pino L, Savel AB, Sluijs LV, Wardenier JP.   +19 more
europepmc   +1 more source

Ultrahigh‐Order Harmonic Mode‐Locked Optoelectronic Oscillator

Laser &Photonics Reviews, EarlyView.
This article demonstrates a record‐breaking microwave frequency comb generator using an ultrahigh‐harmonic‐order mode‐locked optoelectronic oscillator. By integrating dual recirculating loops into a low‐coherence system, the researchers achieved a harmonic order of 956 with superior noise suppression.
Zhuoran Wang, Santiago Bernal, David V. Plant, Lawrence R. Chen   +3 more
wiley   +1 more source

Revisiting superradiance dynamics from single diamond nanocrystals with a physically consistent model for fluorescence decay. [PDF]

Nat Commun
Borkowski JJ, Czerwinski A, Kolenderski P.   +2 more
europepmc   +1 more source

Optical Skyrmions with Tunable or Reconfigurable Topology Using Spin‐Decoupled Metaoptics

Laser &Photonics Reviews, EarlyView.
The work introduces advanced optical elements capable of generating and dynamically reconfiguring complex light patterns known as optical skyrmions. By precisely shaping light polarization at the nanoscale, a single engineered metasurface can generate and manipulate robust and tunable polarization textures in an efficient and scalable way.
Andrea Vogliardi, Daniele Bonaldo, Simone Dal Zilio, Vittorio Apolloni, Filippo Romanato, Gianluca Ruffato   +5 more
wiley   +1 more source

Mobile data stream mining: from algorithms to applications [PDF]

, 2012
Krishnaswamy, S., Shonali Krishnaswamy, Mohamed Medhat Gaber, Gaber, M., Gama, J., Joao Gama   +5 more
core   +1 more source