One of the basic problems of the design of the portable x-ray devices for the works under the field conditions is to get smallest possible weight and the overall sizes. The classical apparatuses, which contain thermo-emission X-ray tube and source of constant high voltage as a rule have weight about 15-30 kg, which strongly impedes their use in the nonstationary conditions. In the proposed work...

The eeects of vibration on cathode strip chamber operation are analyzed. Gas gain variation and low frequency noise tolerances lead to a speciication of a maximum vibration amplitude for various frequencies. Possible resonant wire vibrations are described.

Frederick’s (2005) Cognitive Reflection Test (CRT) is a 3item task shown to predict susceptibility to decision-making biases better than intelligence measures. It is described as measuring ‘cognitive reflection’ a metacognitive trait capturing the degree to which people prefer to reflect on answers rather than giving intuitive responses. Herein, we ask how much of the CRT’s success can be expla...

In RSA, the public modulus N = pq is the product of two primes of the same bit-size, the public exponent e and the private exponent d satisfy ed ≡ 1 (mod (p−1)(q−1)). In many applications of RSA, d is chosen to be small. This was cryptanalyzed by Wiener in 1990 who showed that RSA is insecure if d < N. As an alternative, Quisquater and Couvreur proposed the CRT-RSA scheme in the decryption phas...

In this paper we analyze practical aspects of the differential fault attack on RSA published by Boneh, Demillo and Lipton from Bellcore. We focus on the CRT variant, which requires only one faulty signature to be entirely broken provided that no DFA countermeasures are in use. Usually the easiest approach for the attacker is to introduce a fault in one of the two RSA-CRT exponentiations. These ...

In this work we consider a variant of RSA whose public and private exponents can be chosen significantly smaller than in typical RSA. In particular, we show that it is possible to have private exponents smaller thanN which are resistant to all known small private exponent attacks. This allows for instances of RSA with short CRT-exponents and short public exponents. In addition, the number of bi...

In this paper, a color difference is defined instead of the conventional color differences to evaluate gamut-mapping techniques for electronic endoscope images reproduced on CRT under environmental illuminant. This color difference is defined from Mahalanobis distance by using covariance matrices for differences of metric lightness, chroma and hue angle. The covariance matrices for endoscope im...

Most assembly processes on the nano-scale take place in a Scanning Electron Microscope (SEM) for the reason of high magnification range of the microscope itself. Like all microscopes, the SEM delivers visual data just in two dimensions. This is a bottleneck for all assembly processes which require of course information of the parts to join in a third dimension. This paper shows an approach with...

Microtubules are structural and motile elements. They are essential in numerous cell processes. Their function will be greatly improved by our understanding of their molecular structure, which requires extracting microtubules from the Cellular Electron Tomography Images. Manual segmentation and measurement of the microtubules from 3D dataset may require several man-hours of work, and the manual...