Zobrazeno 1 - 10
of 31
pro vyhledávání: '"Yingpeng Qi"'
Publikováno v:
BioMedical Engineering OnLine, Vol 23, Iss 1, Pp 1-17 (2024)
Abstract Background Timely prevention of major adverse cardiovascular events (MACEs) is imperative for reducing cardiovascular diseases-related mortality. Perivascular adipose tissue (PVAT), the adipose tissue surrounding coronary arteries, has attra
Externí odkaz:
https://doaj.org/article/1f036842577649719255efd23152761e
Publikováno v:
AIP Advances, Vol 10, Iss 8, Pp 085205-085205-6 (2020)
Compact DC photoelectron guns of high-voltage are highly desired to output ultrabright and ultrashort electron pulses for accessing irreversible processes by using the ultrafast electron diffraction (UED) technique. The high-voltage breakdown, howeve
Externí odkaz:
https://doaj.org/article/e7e9123dce73429c9c13b7e518ed00b2
Lattice dynamics and ultrafast energy flow between electrons, spins, and phonons in a 3d ferromagnet
Autor:
Daniela Zahn, Florian Jakobs, Yoav William Windsor, Hélène Seiler, Thomas Vasileiadis, Tim A. Butcher, Yingpeng Qi, Dieter Engel, Unai Atxitia, Jan Vorberger, Ralph Ernstorfer
Publikováno v:
Physical Review Research, Vol 3, Iss 2, p 023032 (2021)
The ultrafast dynamics of magnetic order in a ferromagnet are governed by the interplay between electronic, magnetic, and lattice degrees of freedom. In order to obtain a microscopic understanding of ultrafast demagnetization, information on the resp
Externí odkaz:
https://doaj.org/article/10824d4c63a84ea286a44aada0b3859d
Publikováno v:
New Journal of Physics, Vol 23, Iss 6, p 063052 (2021)
The recent development of optical control of electron pulses brings new opportunities and methodologies in the fields of light–electron interaction and ultrafast electron diffraction (UED)/microscopy. Here, by a comprehensive theoretical study, we
Externí odkaz:
https://doaj.org/article/4368de8154a347e6b2c7386af618e4d3
Publikováno v:
New Journal of Physics, Vol 22, Iss 9, p 093004 (2020)
Achieving a few-femtosecond (fs) temporal resolution in electron diffraction and electron microscopy is essential for directly tracking the electronic processes and the fastest atomic motions in molecule and condensed matter systems. The intrinsic Co
Externí odkaz:
https://doaj.org/article/b041ae6dccda497187a91d063c919f11
Autor:
Yingpeng Qi, Minjie Pei, Dalong Qi, Jing Li, Yan Yang, Tianqing Jia, Shian Zhang, Zhenrong Sun
Publikováno v:
New Journal of Physics, Vol 19, Iss 2, p 023015 (2017)
We have theoretically and experimentally demonstrated an RF compression-based jitter-amplification effect in high-brightness electron source ultrafast electron diffraction (UED), which degrades the temporal resolution significantly. A detailed analys
Externí odkaz:
https://doaj.org/article/1582f051703042ce8fffe2f8c6a464f8
Publikováno v:
Nano Letters. 23:2578-2585
Autor:
Yingpeng, Qi, Mengxue, Guan, Daniela, Zahn, Thomas, Vasileiadis, Hélène, Seiler, Yoav William, Windsor, Hui, Zhao, Sheng, Meng, Ralph, Ernstorfer
Publikováno v:
ACS nano. 16(7)
The microscopic arrangement of atoms and molecules is the determining factor in how materials behave and perform
Autor:
Zhao Qixu, Liang Bai, Haitao Sun, Cheng Zhong, Yingpeng Qi, Zhenrong Sun, Qinghong Yuan, Yan Yang, Jianwei Shen, Dalong Qi
Publikováno v:
The Journal of Physical Chemistry C. 124:26396-26403
Alkali-based semiconductor photocathodes have attracted considerable attention because of their high quantum efficiency and low electron emittance, which can be potentially utilized in the next-gen...