Results 111 to 120 of about 7,132 (302)

A design method for DR-stabilized MESFET oscillators [PDF]

, 1990
In this paper a method is proposed for the design of DR-stabilized MESFET oscillators where several diferent design objectives, associated both to stability and output power, can simultaneously be taken into account.
F. Filicori, Vannini, G., VANNINI, Giorgio, Filicori, F.   +3 more
core   +1 more source

Temperature‐Driven Emission Redistribution of Yb2+ in SrB4O7 Enables Highly Sensitive Optical Thermometry Supported by Multiple Linear Regression

Advanced Science, EarlyView.
A novel optical thermometer exploits the rare UV emission of Yb2+ ions in a SrB4O7 host, enabling highly sensitive, non‐contact temperature measurements from 80 to 420 K. The applied multiple linear regression (MLR) analysis results in a multiple increase in the resulting temperature sensitivity.
Fang Zhao, Teng Zheng, Przemysław Woźny, Miguel A. Hernández‐Rodríguez, Shiqing Xu, Inocencio R. Martín, Marcin Runowski   +6 more
wiley   +1 more source

High-power asynchronous midinfrared optical parametric oscillator frequency combs [PDF]

, 2013
We introduce a new stabilization scheme providing a pair of high-power, carrier-envelope-offset (CEO) frequency-stabilized, broadband, asynchronous frequency combs operating at 3.3 mu m.
Gardiner, Tom, Fang, Xiaohui, Reid, Derryck Telford; id_orcid, Zhang, Zhaowei   +3 more
core   +1 more source

Bandgap‐Engineered PtxTey:Ag2Te Composite Quantum Dots Enable Programmable NIR‐II Imaging and Photothermal‐Immune Synergistic Therapy

Advanced Science, EarlyView.
A bandgap‐engineered PtxTey:Ag2Te quantum dot platform enables tunable NIR‐IIb emission for deep‐tissue imaging and mild photothermal therapy. Conjugation with αPD‐L1 confers dual tumor targeting and real‐time monitoring of PD‐L1 dynamics. Mild photothermal modulation induces immune reprogramming, enhancing checkpoint blockade efficacy and achieving ...
Jing Liu, Rui Xu, Quan Wu, Tian‐Xin Xiao, Lai‐Xi Zhao, Lei Sun, Ya‐Wen Zheng, Liang Dong, Zhi‐Quan Tian, Haibo Wang   +9 more
wiley   +1 more source

Aromaticity‐Engineered Open‐Shell Radical Anions for Air‐Stable Doublet Emission in N‐Annulated Perylene Diimide

Advanced Science, EarlyView.
Open‐shell type radical anions with stable doublet emission have been synthesized that feature aromaticity engineering, through‐space charge‐transfer (TSCT), and electro(fluoro)chromism. ABSTRACT We report the doublet emissive open‐shell radical anions, where the N‐annulated perylene diimide (PDIN–H) is functionalized with aromatic rings.
Jeongyoon Kim, Soyoon Lee, Min‐Ji Kim, Mina Ahn, Kyung‐Ryang Wee   +4 more
wiley   +1 more source

Histone Modification Complex JMJ704‐HDA709 Negatively Regulates Salinity Tolerance in Rice

Advanced Science, EarlyView.
This study reveals that the rice histone demethylase JMJ704 interacts with HDA709―a H3K9ac deacetylase characterized herein―to form a chromatin‐modifying complex. Under salt stress, OsWRKY72 recruits this complex through interaction with JMJ704 to target loci, repressing the expression of oxidative stress and salt‐responsive genes via removal of ...
Jing Wang, Zhengting Chen, Pengxiang Bai, Biao Liu, Lingling Meng, Jian Zhang, Xu Li, Dao‐Xiu Zhou, Xuan Ma, Yu Zhao   +9 more
wiley   +1 more source

X-ray comb generation from nuclear-resonance-stabilized x-ray free-electron laser oscillator for fundamental physics and precision metrology

Physical Review Special Topics. Accelerators and Beams, 2015
An x-ray free-electron laser oscillator (XFELO) is a next-generation x-ray source, similar to free-electron laser oscillators at VUV and longer wavelengths but using crystals as high-reflectivity x-ray mirrors.
B. W. Adams, K.-J. Kim
doaj   +1 more source

Design of Low Phase Noise 7.7 GHz Dielectric Resonator Oscillator

, 2021
In this work, a dielectric resonator stabilized oscillator with output frequency at 7.7 GHz is designed, simulated and measured. The oscillator topology is based on the series feedback dielectric resonator oscillator (DRO) structure.
Kizilbey, Oguzhan, Palamutcuogullari, Osman, Yarman, Binboa Siddik   +2 more
core  

Beyond Electrostatics: Anion‐π+ Orbital Hybridization Underpins High‐Performance Chloride Storage in Poly(arylamine) Organic Cathodes

Advanced Science, EarlyView.
The fundamental nature of anion storage in p‐type organic cathodes is elucidated using rigid poly(arylamine) frameworks. This study reveals a hybrid covalent‐ionic mechanism for anion‐π+ interactions, driven by synergistic orbital hybridization and electrostatic attraction.
Tiantian She, Jiena Weng, Jie Wang, Qiao Xi, Yangyang Zhang, Zijie Zhang, Zongqiong Lin, Wei Huang   +7 more
wiley   +1 more source

Optical frequency synthesis from a cryogenic microwave sapphire oscillator

, 2006
We demonstrate an optical frequency comb with fractional frequency instability of
Luiten, A.N., McFerran, J.J., Stanwix, P.L., Dawkins, S.T., Tobar, M.E.   +4 more
core   +1 more source