Results 41 to 50 of about 283,733 (298)

Spectrum of the microwave background radiation [PDF]

Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences, 1982
Abstract A review is given of the present status of measurements of the spectrum of the microwave background. Factors that limit experimental accuracy are discussed with particular reference to high-frequency measurements. A selection of the available measurements yields a data set that is reasonably consistent with the black-body ...
openaire   +3 more sources

Disordered Carbon Shells Enable Shape Dependent Fluorescence Enhancement in Nanodiamond Quantum Sensors Revealed by Correlative TEM–Fluorescence Microscopy

Advanced Functional Materials, EarlyView.
Molten KNO2 treatment induces a lowrefractive index disordered carbon shell on fluorescent nanodiamonds, enhancing fluorescence emission while preserving spin coherence. Machine learningassisted correlative TEMPL enables direct single‐particle resolution of this enhancement relative to air‐oxidized nanodiamonds of similar morphology, establishing a ...
Parkarsh Kumar, Tom Vaillant, Mehran Kianinia, Haotian Wen, Adam Stewart, Peter J. Reece, Hugues A. Girard, Jean‐Charles Arnault, Huan‐Cheng Chang, Igor Aharonovich, Shery L. Y. Chang   +10 more
wiley   +1 more source

Influencing mechanisms of microwave radiation duration on the efficiency of methane adsorption in coals

Meitian dizhi yu kantan
ObjectiveMicrowave radiation duration represents a critical factor in enhancing coalbed methane (CBM) recovery using microwave-aided methods. However, the influencing mechanism of microwave radiation duration on the efficiency of methane adsorption in ...
Yiliang HU, Yuan BAO, Jiahao MENG, Xueru CHEN, Tuo SHAN   +4 more
doaj   +1 more source

Direct-current control of radiation-induced differential magnetoresistance oscillations in two-dimensional electron systems

, 2007
Magnetoresistance oscillations in two-dimensional electron systems driven simultaneously by a strong direct current and a microwave irradiation, are analyzed within a unified microscopic scheme treating both excitations on an equal footing. The microwave-
Ryzhii V. I., X. L. Lei
core   +1 more source

Establishing a Model Precursor System: Over a Decade of Research on Carbon Dots from the Citric Acid‐Urea System

Advanced Functional Materials, EarlyView.
The citric acid/urea (CA‐Urea) precursor system offers a versatile, scalable route to carbon dots with tunable luminescence and multifunctionality. Mechanistic insights into precursor chemistry and reaction parameters have enabled doping, surface modification, and hybridization strategies, yielding CDs for luminescent devices, sensing, catalysis ...
Yupeng Liu, Zhiqi Cai, Xiangxin Sun, Hanyi Zhang, Yiming Hao, Jun Wu, Zekun Yan, Xue Wu, Yiqi Liang, Liming Wang, Songnan Qu   +10 more
wiley   +1 more source

Shubnikov-de Haas oscillations in two-dimensional electron gas under subterahertz radiation

, 2015
We report on magnetotransport measurements in a two-dimensional (2D) electron gas subject to subterahertz radiation in the regime where Shubnikov-de Haas oscillations (SdHO) and microwave-induced resistance oscillations (MIRO) coexist over a wide ...
Gardner, G. C., Hatke, A. T., Manfra, M. J., Martin, P. D., Pfeiffer, L. N., Shi, Q., Watson, J. D., West, K. W., Zudov, M. A.   +8 more
core   +1 more source

Neutrinos And Big Bang Nucleosynthesis [PDF]

, 2012
According to the standard models of particle physics and cosmology, there should be a background of cosmic neutrinos in the present Universe, similar to the cosmic microwave photon background.
Steigman, Gary
core   +4 more sources

The cosmic microwave background radiation

Physics Reports, 2000
We summarize the theoretical and observational status of the study of the Cosmic Microwave Background radiation. Its thermodynamic spectrum is a robust prediction of the Hot Big Bang cosmology and has been confirmed observationally. There are now 76 observations of Cosmic Microwave Background anisotropy, which we present in a table with references.
Gawiser, Eric, Silk, Joseph
openaire   +2 more sources

Nanodiamond Quantum Sensors for Probing Free Radical Biology

Advanced Functional Materials, EarlyView.
Free radicals play key roles in cellular signaling and disease but remain difficult to measure in living systems. Nanodiamonds (NDs) with nitrogen‐vacancy (NV) centers enable quantum sensing of local magnetic noise via T₁ relaxometry, providing nondestructive radical detection in living cells.
Qi Lu, Yingke Wu, Tanja Weil
wiley   +1 more source

Mechanistic insights into microwave radiation induced cognitive impairments: The role of m6A epigenetic modifications and HNRNPA2B1 in TrkB regulation

Ecotoxicology and Environmental Safety
Microwave radiation, a prevalent environmental stressor, significantly impacts human health. Based on previous studies, we hypothesize that microwave-induced cognitive impairments and vulnerability in the hippocampal dentate gyrus (DG) region are due to ...
Weijia Zhi, Jiale Tang, Mingzhao Zhang, Yong Zou, Simo Qiao, Lizhen Ma, Ji Dong, Binwei Yao, Xuelong Zhao, Zhenqi Yang, Zhongwu Lin, Xiangjun Hu, Lifeng Wang   +12 more
doaj   +1 more source