Results 251 to 260 of about 197,808 (272)

Mimicking Symmetry‐Breaking Einstein Ring by Optical Lens

Advanced Photonics Research, EarlyView.
This article uses an optical lens to emulate the gravitational lensing effect and observe the Einstein ring (ER) patterns. The symmetry‐breaking ER, i.e., Einstein cross, is observed utilizing a rotation‐symmetry‐breaking hemi‐ellipsoid lens. Deformed Einstein cross patterns induced by noncollinearly alignment of the light source–lens–observer are ...
Jun‐Liang Duan, Wen Xiao, Minyong Guo, Tong Liu, Huanyang Chen, Jin‐Hui Chen   +5 more
wiley   +1 more source

False positives in gravitational wave campaigns: the electromagnetic perspective. [PDF]

Philos Trans A Math Phys Eng Sci
Oates S.
europepmc   +1 more source

Optical Wireless Communications with Metasurfaces: Current Status and Potential for Intelligent Communications

Advanced Photonics Research, EarlyView.
Optical wireless communications (OWCs) provide a promising alternative to spectrum‐congested microwave wireless communications. Recently, the use of metasurfaces with sub‐wavelength features for dynamic beam steering, beam manipulation, and spatial or optical‐angular‐momentum mode generation, conversion, and multiplexing in OWCs is proposed and ...
Ke Wang, Chengwei Fang, Md Osman Ali, Xiaojun Chen, Safa Alghadi, Shuo Li, Jiayuan He, Sithamparanathan Kandeepan   +7 more
wiley   +1 more source

Triglyceride-glucose index and the risk of in-hospital and ICU all-cause mortality: a systematic review and meta-analysis of observational studies. [PDF]

Nutr Diabetes
Sharifi-Zahabi E, Nasiri N, Hajizadeh-Sharafabad F, Sharifi M, Saber A.   +4 more
europepmc   +1 more source

Self‐Detecting Mid‐Infrared Dual‐Comb Spectroscopy Based on High‐Speed Injection‐Locked Quantum Cascade Lasers

Advanced Photonics Research, EarlyView.
A compact self‐detecting dual‐comb spectroscopy (DCS) system based on dispersion‐engineered, high‐speed packaged quantum cascade lasers (QCLs) at λ≈4.6 μm under coherent injection locking is demonstrated. Broad multiheterodyne comb signal with reduced tooth linewidths by orders of magnitude is recorded.
Yu Ma, Dapeng Wu, Ruixin Huang, Shichen Zhang, Binru Zhou, Zejun Ma, Yongqiang Sun, Junqi Liu, Ning Zhuo, Jinchuan Zhang, Shenqiang Zhai, Shuman Liu, Fengqi Liu, Manijeh Razeghi, Quanyong Lu   +14 more
wiley   +1 more source

Enhancing Ion Emission: Insights from Molecular Dynamics and Monte Carlo Simulations. [PDF]

J Phys Chem Lett
Kański MJ, Louerdi S, Postawa Z.
europepmc   +1 more source

Effective and Practical Stereoselective Synthesis of Nutlins Precursors by Immobilization of Privileged Chiral Mono‐Amidine Catalyst

Advanced Synthesis &Catalysis, EarlyView.
Abstract A strategy for the immobilization of Johnston's Mono(AMidine) catalyst (MAM) onto polystyrene, silica and hybrid silica‐polystyrene nanoparticles is presented. The catalyst activity was evaluated in the stereoselective aza‐Henry reaction leading to the pivotal β‐amino nitroalkane precursors of the anti‐cancer agents Nutlins (with Nutlin‐3a as ...
Sofia Toldo, Lorenzo Poletti, Graziano Di Carmine, Olga Bortolini, Carmela De Risi, Simona Felletti, Greta Compagnin, Alessandro Massi, Daniele Ragno   +8 more
wiley   +1 more source

Generalized redshift formula through an energy-based framework. [PDF]

Sci Rep
Ortiz C, Ibarra-Castor F.
europepmc   +1 more source

Field Trials of Low‐Cost Bi‐TiO2‐P25 Solar Photo Catalyst for Water Treatment

Advanced Sustainable Systems, EarlyView.
Journey of a low‐cost and easy to synthesize catalyst from development to validation in laboratory, followed by testing for its ability to reduce total coliform and E. Coli in the real‐world water using solar light in rural India. Abstract A low‐cost, easy to make Bi‐TiO2‐P25 composite is synthesized via a reverse micelle sol‐gel route and is tested ...
Ayushi Arora, Victoria E. Porley, Bhim C. Meikap, Ramkrishna Sen, Ankita Debnath, Efthalia Chatzisymeon, Neil Robertson   +6 more
wiley   +1 more source

Infrared thermochromic antenna composite for self-adaptive thermoregulation. [PDF]

Nat Commun
Ramirez-Cuevas FV, Gurunatha KL, Li L, Zulfiqar U, Sathasivam S, Tiwari MK, Parkin IP, Papakonstantinou I.   +7 more
europepmc   +1 more source