Results 41 to 50 of about 92,936 (299)

Review of High-resolution Imaging Techniques of Wideband Inverse Synthetic Aperture Radar

Leida xuebao, 2020
At present, the emphasis of Inverse Synthetic Aperture Radar (ISAR) systems on the characteristics of high carrier frequency, wide bandwidth, multi-polarization capability, distribution, and networking has led to the development and progress of ISAR ...
Biao TIAN, Yang LIU, Pengjiang HU, Wenzhen WU, Shiyou XU, Zengping CHEN   +5 more
doaj   +1 more source

On induction effects at EISCAT and IMAGE magnetometer stations [PDF]

Geophysical Journal International, 1995
SUMMARY When ground-based magnetometer data are used for ionospheric/magnetospheric studies, it is important to know the external (ionospheric/magnetospheric) and internal (telluric) contributions to the observed total variation. To study them, we calculate geomagnetic induction vectors, and apply the Siebert-Kertz separation method using data from ...
Ari Viljanen, Kirsti Kauristie, Kari Pajunpää   +2 more
openaire   +1 more source

Study on nonlinear process of remote sensing camera imaging at visible wavelengths [PDF]

, 2017
As the atmospheric environments get more complex, the surface characteristics are diverse, spaceborne remote sensing cameras with the characteristics of large aperture, long focal length, and small size are demanded ever-increasing, and the high ...
Wenhao Li, Zhang, Xing, Li, Wenhao, Xing Zhang, Liu, Zhaohui(刘朝晖), Liang Zhou, Zhaohui Liu, Zhou, Liang(周亮)   +7 more
core   +1 more source

A multipurpose end-station for atomic, molecular and optical sciences and coherent diffractive imaging at ELI beamlines [PDF]

, 2021
We report on the status of a users' end-station, MAC: a Multipurpose station for Atomic, molecular and optical sciences and Coherent diffractive imaging, designed for studies of structure and dynamics of matter in the femtosecond time-domain.
Maria Krikunova, Andreasson, Jakob, Luca Poletto, Finke, Ondrej, Lucie Jurkovičová, Jurkovic, Matej, Klimesova, Eva, Rebarz, Mateusz,, Poletto, Luca,, Hort, Ondrej, Dong-Du Mai, Mai, Dong-Du,, Hoque, Ziaul,, Mai, Dong-Du, Andreasson, Jakob,, Roos, Andreas Hult, Wolf, Adam,, Martin Albrecht, Ben Ltaief, Ltaief, Westphal, Daniel, Ziaul Hoque, Mateusz Rebarz, Sokol, Martin, Ondřej Finke, Roberto Lera, Kulyk, Olena, Martin Sokol, Albrecht, Martin, Kulyk, Olena,, Fabio Frassetto, Khakurel, Krishna P., Albrecht, Martin,, Sokol, Martin,, Ltaief Ben Ltaief, Eva Klimešová, Adam Wolf, Nejdl, Jaroslav,, Wolf, Adam, Nejdl, Jaroslav, Fink, Rasmus Burlund, Rasmus Burlund Fink, Klimesova, Eva,, Finke, Ondrej,, Rebarz, Mateusz, Andreas Hult Roos, Frassetto, Fabio,, Lastovicka, Tomas, Lera, Roberto,, Jaroslav Nejdl, Fink, Rasmus Burlund,, Poletto, Luca, Tomáš Laštovička, Daniel Westphal, Lera, Roberto, Frassetto, Fabio, Krishna P. Khakurel, Hoque, Ziaul, Roos, Andreas Hult,, Khakurel, Krishna P.,, Hort, Ondrej,, Krikunova, Maria,, Krikunova, Maria, Westphal, Daniel,, Jurkovic, Matej,, Olena Kulyk, Ben Ltaief, Ltaief,, Lastovicka, Tomas,, Jakob Andreasson, Ondřej Hort   +68 more
core   +1 more source

Perturbation analysis of travel-time accuracy for core phases reconstructed from seismic interferometry [PDF]

Solid Earth
Correlating late coda waves from large earthquakes produces stable waveforms that approximate inter-station core phases. However, the properties of these coda waves often violate the strict assumptions underlying classical Green's function retrieval ...
Y. Xia, Y. Xia, Y. Xia, X. Feng, X. Feng, X. Chen, X. Chen   +6 more
doaj   +1 more source

GEOPHYSICAL INVESTIGATION FOR POST-FOUNDATION ASSESSMENT WITHIN EKITI STATE UNIVERSITY, ADO EKITI, SOUTHWESTERN NIGERIA

Malaysian Journal of Geosciences, 2022
This study has evaluated the post-construction subsoil integrity of a distressed building in Ado-Ekiti, Southwestern Nigeria, to decipher the in-situ lithology and structural disposition. Four traverses of 100 m length were established in approximately E-
Ilugbo Stephen Olubusola, Ajayi Christopher Ayodele, Madukwe Henry Yemagu, Adebo Babatunde A, Talabi Abel Ojo, Oyedele Akintunde Akinola, OJO Olufemi Felix, Ajisafe Yemisi Christianah, Talabi Joseph Ifeoluwa   +8 more
doaj   +1 more source

Revisiting the T2 spectrum imaging inverse problem: Bayesian regularized non-negative least squares

NeuroImage, 2021
Multi-echo T2 magnetic resonance images contain information about the distribution of T2 relaxation times of compartmentalized water, from which we can estimate relevant brain tissue properties such as the myelin water fraction (MWF).
Erick Jorge Canales-Rodríguez, Marco Pizzolato, Thomas Yu, Gian Franco Piredda, Tom Hilbert, Joaquim Radua, Tobias Kober, Jean-Philippe Thiran   +7 more
doaj   +1 more source

Type III Radio Bursts Observations on 20th August 2017 and 9th September 2017 with LOFAR Bałdy Telescope

Remote Sensing, 2021
We present the observations of two type III solar radio events performed with LOFAR (LOw-Frequency ARray) station in Bałdy (PL612), Poland in single mode. The first event occurred on 20th August 2017 and the second one on 9th September 2017.
Bartosz Dabrowski, Paweł Flisek, Katarzyna Mikuła, Adam Froń, Christian Vocks, Jasmina Magdalenić, Andrzej Krankowski, PeiJin Zhang, Pietro Zucca, Gottfried Mann   +9 more
doaj   +1 more source

Correlation between heart rate variability and psychological evaluation before blood donation

Zhongguo shuxue zazhi
Objective To investigate the correlation between heart rate variability (HRV) and the degree of nervousness before blood donation. Methods The psychological state of 253 blood donors before blood donation was assessed by the self-rating anxiety scale ...
Luchuan WEI, Yong WANG, Xingnian CHEN, Dong YANG, Yun XIANG, Weizheng GUAN, Bo SHI, Tian TIAN, Shenglan WANG   +8 more
doaj   +1 more source

Design, Synthesis, and Validation of a Novel [¹¹C]Promethazine PET Probe for Imaging Abeta Using Autoradiography

Molecules, 2021
Promethazine, an antihistamine drug used in the clinical treatment of nausea, has been demonstrated the ability to bind Abeta in a transgenic mouse model of Alzheimer’s disease.
Clayton A. Whitmore, Mariam I. Boules, William J. Behof, Justin R. Haynes, Dmitry Koktysh, Adam J. Rosenberg, Mohammed N. Tantawy, Wellington Pham   +7 more
doaj   +1 more source