Abnormal Backscattering off Low Roughness Surface of Metallic Object Immersed in Water

1982 ◽  
pp. 733-742
Author(s):  
J. F. Gelly ◽  
C. Maerfeld ◽  
P. Maguer
2014 ◽  
Vol 30 ◽  
pp. e15
Author(s):  
J.R.C. Queiroz ◽  
M.B. Bandeira ◽  
I.M.S. Queiroz ◽  
B. Henriques ◽  
A.E. Martinelli ◽  
...  
Keyword(s):  

2021 ◽  
Vol 14 (2) ◽  
pp. e238076
Author(s):  
Bryan O'Sullivan ◽  
Richard Tanner ◽  
Peter Kelly ◽  
Gerard Fahy

A 75-year-old was treated for prostate adenocarcinoma with brachytherapy in September 2018. A routine follow-up chest radiograph 3 months later revealed a metallic object of the same dimensions as a brachytherapy pellet located in the right ventricle. Further imaging showed the brachtherapy pellet was located in the anterobasal right ventricular endocardium close to the tricuspid valve. Frequent asymptomatic premature ventricular contractions were observed with likely origin from the left ventricular outflow tract, an area remote from the site of the pellet. The patient remains asymptomatic and subsequent imaging shows that the position of the pellet has not changed.


2018 ◽  
Vol 21 (6) ◽  
pp. 369-372 ◽  
Author(s):  
Randhawa Muhammad Afzal ◽  
Muhammad Armughan ◽  
Muhammad Waqas Javed ◽  
Usman Ali Rizvi ◽  
Sajida Naseem

RFID Handbook ◽  
2008 ◽  
Author(s):  
Mun Ng ◽  
Kin Leong ◽  
Peter Cole

2013 ◽  
Vol 28 (2) ◽  
pp. 295-299
Author(s):  
李铭 LI Ming ◽  
张涛 ZHANG Tao ◽  
郑健 ZHENG Jian ◽  
杨宏成 YANG Hong-cheng ◽  
卢彦飞 LU Yan-fei

2020 ◽  
Vol 493 (4) ◽  
pp. 4622-4630
Author(s):  
Ramanakumar Sankar ◽  
Csaba Palotai ◽  
Ricardo Hueso ◽  
Marc Delcroix ◽  
Ethan Chappel ◽  
...  

Abstract On 2019 August 7, an impact flash lasting ∼1 s was observed on Jupiter. The video of this event was analysed to obtain the light curve, and determine the energy release and initial mass. We find that the impactor released a total energy of 96–151 kilotons of TNT, corresponding to an initial mass between 190 and 260 metric tonnes with a diameter between 4 and 10 m. We developed a fragmentation model to simulate the atmospheric breakup of the object and reproduce the light curve. We model three different materials: cometary, stony, and metallic at speeds of 60, 65, and 70 km s−1, respectively, to determine the material make-up of the impacting object. The slower cases are best fitted by a strong, metallic object while the faster cases require a weaker material.


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