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The aim of this research is the determining strategy of technology transfer in the upstream oil industry (oil fields development) of the Islamic Republic of Iran with the use of effective conditional models of technology transfer. In this study, the views and attitudes of 30 managers and experts familiar with the issues of technology transfer, including transfer of technology in the development...

We present a collision attack on the hash function HAS-160 reduced to 53-steps. The attack has a complexity of about 2 hash computations. The attack is based on the work of Cho et al. presented at ICISC 2006. In this article, we improve their attack complexity by a factor of about 2 using a slightly different strategy for message modification in the first 20 steps of the hash function.

Class C physiologic incident reports during undergraduate pilot training (UPT) revealed that 1.7 episodes of G-induced loss of consciousness (LOC) occurred monthly in 1980-1984. The mean +Gz for the LOC episodes was +3.8 Gz; the minimum, +2.0 Gz. The mean time of total incapacitation was 12.0 s (maximum, 180.0 s) as subjectively estimated by the aircrew. Improper performance of the anti-G strai...

Searching for educational resources on the web would be greatly facilitated by the availability of classificatory metadata, but most web educational resources put up by faculty members provide no such metadata. We explore using text classification and information extraction techniques to automatically gather such metadata. Text classifications orthogonal to topic matter appear possible with hig...