Scott Horras

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Several groups have shown the improved functionality, especially concerning selectivity, sensitivity and stability, of semiconductor gas sensors either evaluated dynamically, i.e. by impedance spectroscopy [U. Weimar, et al., 1995], or operated dynamically, i.e. by temperature cycling [A.P. Lee, et al., 1999; W.M. Sears, et al., 1989; E. Llobet, et al.,(More)
To determine the usage of XOR and the need to adapt additional tools, we analyzed 2,411 drive images from devices acquired around the world for the use of bytewise XOR as an obfuscation technique. Using a modified version of the open source digital forensics tool bulk_extractor, evidence of XOR obfuscation was found on 698 drive images, with a maximum of(More)
To determine the usage of XOR and the need to adapt additional tools, we analyzed 2,411 drive images from devices acquired around the world for the use of bytewise XOR as an obfuscation technique. Using a modified version of the open source digital forensics tool bulk_extractor, evidence of XOR obfuscation was found on 698 drive images, with a maximum of(More)
The complexity of clients in today's health care environment requires a close, collaborative working relationship among disciplines. However, nurses, who are often key decision-makers in the planning, management, and movement of clients throughout the health care system, may not use the expertise of their best allies: nurses in other settings, institutions,(More)
The only digital forensic tools known to provide an automated approach for evaluating XOR obfuscated data are DCCI Carver and DC3 Carver, two general-purpose carving tools developed by the Defense Cyber Crime Center (DC3). In order to determine the use of XOR as an obfuscation technique and the need to adapt additional tools, we analyzed 2,411 drive images(More)
Based on a single semiconductor (sc) gas sensor and sensors for temperature, relative humidity and gas flow we developed a system for fire detection in coal mines. These sensors are read-out by a high-dynamic-range hardware control and data acquisition platform, in which the sc-sensor is operated with an application-optimized temperature cycle to improve(More)
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