TY  - JOUR
A1  - Valero, Daniel
A1  - Chanson, Hubert
A1  - Bung, Daniel Bernhard
T1  - Robust estimators for turbulence properties assessment
Y1  - 2019
SP  - 1
EP  - 24
ER  - 
TY  - JOUR
A1  - Wedrowski, M.
A1  - Bruyndonckx, P.
A1  - Tavernier, S.
A1  - Zhi, L.
A1  - Dang, J.
A1  - Mendes, P. R.
A1  - Perez, J. M.
A1  - Ziemons, Karl
T1  - Robustness of neural networks algorithm for gamma detection in monolithic block detector, positron emission tomography
JF  - 2009 IEEE Nuclear Science Symposium Conference Record (NSS/MIC)
N2  - The monolithic scintillator block approach for gamma detection in the Positron Emission Tomography (PET) avoids estimating Depth of Interaction (DOI), reduces dead zones in detector and diminishes costs of detector production. Neural Networks (NN) are very efficient to determine the entrance point of a gamma incident on a scintillator block. This paper presents results on the robustness of the spatial resolution as a function of the random fraction in the data, temperature and HV fluctuations. This is important when implementing the method in a real scanner. Measurements were done with two Hamamatsu S8550 APD arrays, glued on a 20 × 20 × 10 mm3 monolithic LSO crystal block.
Y1  - 2009
SN  - 1082-3654
SP  - 2625
EP  - 2628
ER  - 
TY  - JOUR
A1  - Hüning, Felix
A1  - Hillgärtner, Michael
A1  - Reke, Michael
T1  - Rolling Labs – Teaching Vehicle Electronics from the Beginning
JF  - International Journal of Engineering Pedagogy (iJEP)
Y1  - 2019
U6  - https://doi.org/10.3991/ijep.v9i1.9241
SN  - 2192-4880
VL  - 9
IS  - 1
SP  - 34
EP  - 49
ER  - 
TY  - JOUR
A1  - Wittmann, Klaus
A1  - Feuerbacher, B.
A1  - Ulamec, S.
A1  - Rosenbauer, H. (u.a.)
T1  - Rosetta Lander - In Situ Characterisation of a Comet Nucleus
JF  - Acta Astronautica. 45 (1999), H. 4-9
Y1  - 1999
SN  - 0094-5765
SP  - 389
EP  - 395
ER  - 
TY  - JOUR
A1  - Wittmann, Klaus
A1  - Ulamec, S.
A1  - Feuerbacher, B.
A1  - Rosenbauer, H. (u.a.)
T1  - Rosetta Lander - In Situ Investigation of a Cometary Nucleus
JF  - Lunar and Planetary Science. 28 (1997)
Y1  - 1997
SN  - 0270-9511
N1  - Proceedings of the 28th Annual Lunar and Planetary Science Conference, March 17-21, 1997, Houston, Texas
SP  - 1461
EP  - 1462
ER  - 
TY  - JOUR
A1  - Müller-Veggian, Mattea
A1  - Lieder, R. M.
A1  - Neskakis, A
T1  - Rotational bands in ¹⁹⁵,¹⁹⁷ Tl
JF  - Nuclear physics / A. 299 (1978), H. 2
Y1  - 1978
SN  - 0375-9474
SP  - 255
EP  - 284
ER  - 
TY  - JOUR
A1  - Gaigall, Daniel
T1  - Rothman–Woodroofe symmetry test statistic revisited
JF  - Computational Statistics & Data Analysis
N2  - The Rothman–Woodroofe symmetry test statistic is revisited on the basis of independent but not necessarily identically distributed random variables. The distribution-freeness if the underlying distributions are all symmetric and continuous is obtained. The results are applied for testing symmetry in a meta-analysis random effects model. The consistency of the procedure is discussed in this situation as well. A comparison with an alternative proposal from the literature is conducted via simulations. Real data are analyzed to demonstrate how the new approach works in practice.
Y1  - 2020
U6  - https://doi.org/10.1016/j.csda.2019.106837
SN  - 0167-9473
VL  - 2020
IS  - 142
SP  - Artikel 106837
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Wegner, Lena
A1  - von Arx, Georg
A1  - Sass-Klaassen, Ute G. W.
A1  - Eilmann, Britta
T1  - ROXAS – an efficient and accurate tool to detect vessels in diffuse-porous species
JF  - IAWA Journal / International Association of Wood Anatomists
Y1  - 2013
U6  - https://doi.org/10.1163/22941932-00000034
SN  - 0928-1541 (Print)
SN  - 2294-1932 (Online)
VL  - 34
IS  - 4
SP  - 425
EP  - 432
PB  - Brill
CY  - Leiden
ER  - 
TY  - JOUR
A1  - Hartung, Frank
A1  - Baldo, N.
A1  - Horn, U.
A1  - Kampmann, M.
T1  - RTCP feedback based transmission rate control for 3G wireless multimedia streaming / Baldo, N. ; Horn, U. ; Kampmann, M. ; Hartung, F. ;
JF  - 15th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, 2004. PIMRC 2004.   Date:5-8 Sept. 2004 ; Vol. 3
Y1  - 2004
N1  - http://dx.doi.org/10.1109/PIMRC.2004.1368313
SP  - 1817
EP  - 1821
ER  - 
TY  - JOUR
A1  - Fiedler, Thomas M.
A1  - Ladd, Mark E.
A1  - Clemens, Markus
A1  - Bitz, Andreas
T1  - Safety of subjects during radiofrequency exposure in ultra-high-field magnetic resonance imaging
JF  - IEEE Letters on Electromagnetic Compatibility Practice and Applications
N2  - Magnetic resonance imaging (MRI) is one of the most important medical imaging techniques. Since the introduction of MRI in the mid-1980s, there has been a continuous trend toward higher static magnetic fields to obtain i.a. a higher signal-to-noise ratio. The step toward ultra-high-field (UHF) MRI at 7 Tesla and higher, however, creates several challenges regarding the homogeneity of the spin excitation RF transmit field and the RF exposure of the subject. In UHF MRI systems, the wavelength of the RF field is in the range of the diameter of the human body, which can result in inhomogeneous spin excitation and local SAR hotspots. To optimize the homogeneity in a region of interest, UHF MRI systems use parallel transmit systems with multiple transmit antennas and time-dependent modulation of the RF signal in the individual transmit channels. Furthermore, SAR increases with increasing field strength, while the SAR limits remain unchanged. Two different approaches to generate the RF transmit field in UHF systems using antenna arrays close and remote to the body are investigated in this letter. Achievable imaging performance is evaluated compared to typical clinical RF transmit systems at lower field strength. The evaluation has been performed under consideration of RF exposure based on local SAR and tissue temperature. Furthermore, results for thermal dose as an alternative RF exposure metric are presented.
Y1  - 2020
SN  - 2637-6423
U6  - https://doi.org/10.1109/LEMCPA.2020.3029747
VL  - 2
IS  - 3
SP  - 1
EP  - 8
PB  - IEEE
CY  - New York, NY
ER  -