On zero practical significance of “ Key recovery attack on full GOST block cipher with zero time and memory”

In this paper we show that the related key boomerang attack by E. Fleischmann et al. from the paper mentioned in the title does not allow to recover the master key of the GOST block cipher with complexity less than the complexity of the exhaustive search. Next we present modified attacks. Finally we argue that these attacks and the related key approach itself are of extremely limited practical applications and do not represent a fundamental obstacle to practical usage of the block ciphers such as GOST, AES and Kasumi

Temperature independent diffuse scattering and elastic lattice deformations in relaxor PbMg1/3Nb2/3O3

The results of diffuse neutron scattering experiment on PbMg1/3Nb2/3O3 single crystal above the Burns temperature are reported. It is shown that the high temperature elastic diffuse component is highly anisotropic in low-symmetry Brillouin zones and this anisotropy can be described using Huang scattering formalism assuming that the scattering originates from mesoscopic lattice deformations due to elastic defects. The qualitative agreement between this model and the experimental data is achieved with simple isotropic defects. It is demonstrated that weak satellite maxima near the Bragg reflections can be interpreted as the finite resolution effect.Comment: 7 pages, 7 figure

Thermomechanical processing of Ti and Nb – alloyed stainless steels

The effect of Thermomechanical Processing (TMP) using hot rolling on the structure, rolling pressure,mechanical properties of titanium and niobium alloyed 18Cr-10Ni austenitic stainless steels (type AISI 321)is presented. It has been found that the strengthening effect of TMP depends significantly on the kinetics ofdeformation accumulation schedule. The change in rolling pressure with an increasing number of passes followa similar pattern to the change in strength of the TMP treated rolling section. The basic factor determining thedifference in structure formation of studying steels is thermodynamic stability of the carbide phase under thedifferent rolling accumulation schedules. TEM and light microscopy have been used in structural investigations.TMP with a different accumulation schedule result in increasing of yield strength by 1,3-1,7 times compared toconventional heat treatment value. The short-term high-temperature tensile tests showed that the higher roomtemperature strength level of TMP treated steel was also retained at high temperatures

The Concept of the FSES HE of the Fourth Generation for Engineering Education in the Context of Implementing the Assignments of the President of Russia

Within the framework of the activities of the Coordinating Council of the Ministry of Science and Higher Education of the Russian Federation in the field of education “Engineering, Technology and Technical Sciences”, proposals have been developed for the implementation of a set of tasks for the development of higher education set by the President of Russia. The necessity of implementing different methodological and normative approaches to different areas of higher education is argued. The authors substantiate the concept of the fourth generation Federal State Educational Standard for the engineering field of education. A new approach to the organization of admission to universities is proposed, which allows students to choose the direction of training after completing the second year of study. An innovative structure of lists of specialties and areas of preparation of higher education is presented, which provides the possibility of implementing the concept of the fourth generation Federal State Educational Standard, as well as greater flexibility and enlargement of the lists

Is the Transfer of Russian Engineering Education to the American Liberal Arts System Relevant?

In his Address to the Federal Assembly on January 15, 2020, the President of Russia set the task “to enable students after their second year to choose a new direction or program of study, including related professions”. Solving this problem requires transformation of the higher education system in Russia. Discussion has arisen in the educational community about the ways of this transformation. One of the possible options was the transfer of Russian education to the American Liberal Arts system. In order to verify the feasibility of using the Liberal Arts system for the training of engineers, a comparative study was carried out. As a result, it was concluded that proposals to replace the Russian system of higher education with the American Liberal Arts system for engineering education are not relevant, because the main basic goals and principles of building these systems coincide and the existing differences are due to the specifics of engineering activities

Scientific and Professional Degrees in Russia: Developing Traditions into the Future

When studying the history of Russian education, one becomes convinced of the validity of the dialectical principles of spiral development. The period of cyclicality in the history of attestation of scientific personnel is approximately equal to a century. In the first quarter of every century, starting from the time of the tsar Peter the Great, events took place that brought the system to a fundamentally new level. But at the same time, the fundamental foundations laid by the tsar Peter the Great and Lomonosov remain constant. Analyzing the attestation system development spiral, we find ways to solve urgent problems, and the foremost among them is ensuring Russia’s technological sovereignty. A similar problem stood a century ago. It was fully resolved in the USSR, but the foundations for its solution were laid in 1917 in the decree issued by the Russian Provisional Government: “On granting the Petrograd Polytechnic Institute the right to award academic degrees”. In the socioeconomic conditions of the modern Russia, we need new solutions. In this article we offer the

Structural heterogeneity and diffuse scattering in morphotropic lead zirconate-titanate single crystals

Complementary diffuse and inelastic synchrotron X-ray scattering measurements of lead zirconate-titanate single crystals with composition near the morphotropic phase boundary (x=0.475) are reported. In the temperature range 293 K < T < 400 K a highly anisotropic quasielastic diffuse scattering is observed. Above 400 K this scattering disappears. Its main features can be reproduced by model of inhomogeneous lattice deformations caused by inclusions of a tetragonal phase into a rhombohedral or monoclinic phase. This observation supports the idea that PZT at its morphotropic phase boundary is essentially structurally inhomogeneous.Comment: 4 pages, 4 figure

BERNAS ION SOURCE DISCHARGE SIMULATION

The joint research and development program is continued to develop steady-state ion source of decaborane beam for ion implantation industry. Bemas ion source is the wide used ion source for ion implantation industry. The new simulation code was developed for the Bemas ion source discharge simulation. We present first results of the simulation for several materials interested in semiconductors. As well the comparison of results obtained with experimental data obtained at the ITEP ion source test-bench is presented