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Johannes Ullrich
Johannes Ullrich
Dean of Research, SANS Technology Institute
Verified email at sans.edu - Homepage
Title
Cited by
Cited by
Year
Internet intrusions: Global characteristics and prevalence
V Yegneswaran, P Barford, J Ullrich
ACM SIGMETRICS Performance Evaluation Review 31 (1), 138-147, 2003
3872003
Highly predictive blacklisting.
J Zhang, PA Porras, J Ullrich
USENIX security symposium, 107-122, 2008
2362008
A comparative study of cyberattacks
SH Kim, QH Wang, JB Ullrich
Communications of the ACM 55 (3), 66-73, 2012
862012
Measurements of polycapillary x‐ray optics
JB Ullrich, V Kovantsev, CA MacDonald
Journal of applied physics 74 (10), 5933-5939, 1993
601993
DShield
J Ullrich
512000
Quality of life in very elderly radiotherapy patients: a prospective pilot study using the EORTC QLQ-ELD14 module
A Kaufmann, H Schmidt, C Ostheimer, J Ullrich, M Landenberger, ...
Supportive Care in Cancer 23, 1883-1892, 2015
222015
Polycapillary X-ray optics for macromolecular crystallography
SM Owens, JB Ullrich, IY Ponomarev, DC Carter, RC Sisk, JX Ho, ...
Hard X-Ray/Gamma-Ray and Neutron Optics, Sensors, and Applications 2859, 200-209, 1996
211996
Quantitative measurements of the performance of capillary x-ray optics
CA MacDonald, CC Abreu, S Budkov, HH Chen, X Fu, WM Gibson, ...
Multilayer and Grazing Incidence X-Ray/EUV Optics II 2011, 275-286, 1994
201994
The top cyber security risks
R Dhamankar, M Dausin, M Eisenbarth, J King, W Kandek, J Ullrich, ...
SANS Institute, 2009
162009
Monolithic polycapillary neutron focusing lenses: experimental characterizations
HH Chen-Mayer, DFR Mildner, VA Sharov, JB Ullrich, IY Ponomarev, ...
Journal of the Physical Society of Japan 65, 1996
161996
Potential for concentration of synchrotron beams with capillary optics
JB Ullrich, WM Gibson, MV Gubarev, CA MacDonald, QF Xiao
Nuclear Instruments and Methods in Physics Research Section A: Accelerators …, 1994
161994
Development of monolithic capillary optics for x-ray diffraction applications
JB Ullrich, IY Ponomarev, MV Gubarev, N Gao, QF Xiao, WM Gibson
X-ray and UV detectors 2278, 148-155, 1994
151994
Gaussian process learning for cyber‐attack early warning
J Zhang, P Porras, J Ullrich
Statistical Analysis and Data Mining: The ASA Data Science Journal 3 (1), 56-68, 2010
122010
Defacing websites via SQL injection
JB Ullrich, J Lam
Network Security 2008 (1), 9-10, 2008
92008
Top Ten Cyber Security Menaces for 2008
S Northcutt, E Skoudis, M Sachs, J Ullrich, T Liston, E Cole, E Schultz, ...
SANS Institute, SANS Press Room, 2008
92008
Concentration of synchrotron beams by means of monolithic polycapillary X-ray optics
JB Ullrich, KG Huang, SM Owens, DC Aloisi, FA Hofmann, N Gao, ...
Nuclear Instruments and Methods in Physics Research Section A: Accelerators …, 1995
91995
Effects of intense x-ray radiation on polycapillary fiber performance
BK Rath, DC Aloisi, DH Bilderback, N Gao, WM Gibson, FA Hofmann, ...
X-Ray and Ultraviolet Sensors and Applications 2519, 207-217, 1995
81995
Diffraction geometry optimization with polycapillary x-ray optics
WM Gibson, CA MacDonald, JB Ullrich
EUV, X-Ray, and Neutron Optics and Sources 3767, 199-208, 1999
71999
A new service for increasing the effectiveness of network address blacklists
J Zhang, P Porras, J Ullrich
networks 2, 1, 2007
32007
Polycapillary X-ray optics for thin film strain and texture analysis
FA Hofmann, WM Gibson, SM Lee, CA MacDonald, JB Ullrich, N Gao
MRS Online Proceedings Library 505, 3-14, 1997
31997
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