Results 1 to 10 of about 27,037 (263)

Using diffraction losses of X-rays in a single crystal for determination of its lattice parameters as well as for monochromator calibration [PDF]

Journal of Synchrotron Radiation, 2022
A way has been developed to measure the unit-cell parameters of a single crystal just from an energy scan with X-rays, even when the exact energy of the X-rays is not well defined due to an error in the pitch angle of the monochromator.
Nataliya Klimova, Irina Snigireva, Anatoly Snigirev, Oleksandr Yefanov   +3 more
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Millimeter‐wave diffraction‐loss model based on over‐rooftop propagation measurements

ETRI Journal, 2020
Measuring the diffraction loss for high frequencies, long distances, and large diffraction angles is difficult because of the high path loss. Securing a well‐controlled environment to avoid reflected waves also makes long‐range diffraction measurements ...
Kyung‐Won Kim, Myung‐Don Kim, Juyul Lee, Jae‐Joon Park, Young Keun Yoon, Young Jun Chong   +5 more
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Approaching the low optical loss limit of plasmonics using potassium [PDF]

Light: Science & Applications
Plasmonics enables the miniaturization of photonic devices beyond the optical diffraction limit, yet its potential is hindered by inherently large ohmic losses.
Yi Zhang, Yuhan Yang, Jie Liang, Shizhuang Wang, Yuhong Shi, Pengcheng Yao, Hanyu Fu, Jacob B. Khurgin, Fengrui Hu, Jia Zhu, Shining Zhu, Lin Zhou   +11 more
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Determination of the Exact Orientation of Single-Crystal X-ray Optics from Its Glitch Spectrum and Modeling of Glitches for an Arbitrary Configuration

Crystals, 2021
X-ray optics made of single-crystal materials are widely used at most of the X-ray sources due to the outstanding properties. The main drawback of such optics—the diffraction losses, also known as glitches of intensity in the energy spectrum of the ...
Nataliya Klimova, Oleksandr Yefanov, Irina Snigireva, Anatoly Snigirev   +3 more
doaj   +1 more source

Suppressing Diffraction-Related Intensity Losses in Transmissive Single-Crystal X-ray Optics

Crystals, 2021
The highest-quality X-ray optics can be made of single-crystal materials such as silicon, germanium, or, even better, diamond. Unfortunately, such X-ray optics have one drawback: diffraction losses or the “glitch effect”.
Nataliya Klimova, Irina Snigireva, Anatoly Snigirev, Oleksandr Yefanov   +3 more
doaj   +1 more source

X-ray diffraction method application to assess the energy losses on explosive-rock contact under various blasting [PDF]

E3S Web of Conferences, 2020
The dissipative energy losses of the explosion on the explosive-rock contact are usually evaluated with comparative analysis of the particle size distribution of finely dispersed fractions (0-100 microns).
Kratkovskyi Ihor, Yefremov Ernest, Ishchenko Kostyantyn, Khomeriki Sergo   +3 more
doaj   +1 more source

Data-Driven Diffraction Loss Estimation for Future Intelligent Transportation Systems in 6G Networks

Mathematics, 2023
The advancement of 6G networks is driven by the need for customer-centric communication and network control, particularly in applications such as intelligent transport systems. These applications rely on outdoor communication in extremely high-frequency (
Sambit Pattanaik, Agbotiname Lucky Imoize, Chun-Ta Li, Sharmila Anand John Francis, Cheng-Chi Lee, Diptendu Sinha Roy   +5 more
doaj   +1 more source

Acoustical routing based on diffraction inhibition in two-dimensional sonic crystal

Applied Physics Express, 2023
Routing and guiding acoustic waves without diffraction broadening and backscattering losses is of great interest to the acoustic community. Here, we propose a diffraction-immune acoustical waveguide based on diffraction inhibition in 2D sonic crystals ...
Zhang Ting, Du Qiang, Wo Chengwen, Sun Li, Liu Xiaojun   +4 more
doaj   +1 more source

Wireless Signal Propagation Prediction Based on Computer Vision Sensing Technology for Forestry Security Monitoring

Sensors, 2021
In this paper, Computer Vision (CV) sensing technology based on Convolutional Neural Network (CNN) is introduced to process topographic maps for predicting wireless signal propagation models, which are applied in the field of forestry security monitoring.
Jialuan He, Zirui Xing, Tianqi Xiang, Xin Zhang, Yinghai Zhou, Chuanyu Xi, Hai Lu   +6 more
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Dynamic lattice distortions driven by surface trapping in semiconductor nanocrystals

Nature Communications, 2021
Charge trapping can lead to severe nonradiative losses in colloidal semiconductor nanocrystals (NCs). The authors report femtosecond electron diffraction measurements on photoexcited NCs to reveal atomic-scale insights into how localization of charges at
Burak Guzelturk, Benjamin L. Cotts, Dipti Jasrasaria, John P. Philbin, David A. Hanifi, Brent A. Koscher, Arunima D. Balan, Ethan Curling, Marc Zajac, Suji Park, Nuri Yazdani, Clara Nyby, Vladislav Kamysbayev, Stefan Fischer, Zach Nett, Xiaozhe Shen, Michael E. Kozina, Ming-Fu Lin, Alexander H. Reid, Stephen P. Weathersby, Richard D. Schaller, Vanessa Wood, Xijie Wang, Jennifer A. Dionne, Dmitri V. Talapin, A. Paul Alivisatos, Alberto Salleo, Eran Rabani, Aaron M. Lindenberg   +28 more
doaj   +1 more source