Today's High-Speed Machining (HSM) machine tool combines productivity and part quality. The difficulty inherent in HSM operations lies in understanding the impact of machine tool behaviour on machining time and part quality. Analysis of some of the relevant ISO standards (230-1998, 10791-1998) and a complementary protocol for better understanding HSM technology are presented in the first part o...

RÉSUMÉ. Dans plusieurs domaines comme l’aéronautique, l’outillage et l’automobile, l’usinage des pièces se fait de plus en plus sur des centres d’usinage à grande vitesse. Aujourd’hui, l’offre pour l’achat de ces centres d’usinage est très étendue. Cette situation pose le problème du choix judicieux et objectif répondant aux besoins industriels qu’il faut bien exprimer. Le choix reste difficile...

BACKGROUND Conducting clinical trials to assess experimental treatments for potentially pandemic infectious diseases is challenging. Since many outbreaks of infectious diseases last only six to eight weeks, there is a need for trial designs that can be implemented rapidly in the face of uncertainty. Outbreaks are sudden and unpredictable and so it is essential that as much planning as possible ...

The author shows brief information about the Technical Сommittee for standardization “Scientific and technical information, librarianship publishing” (GOST TC 191). Committee today based on State Public Scientific Library of Russia. presents work overview current standards editorial publishing. analyzes evaluates development fund in this area new projects National Standardization Program Russia...

Introduction . With the introduction of a new national standard GOST 32703–2014 “Automobile roads general use. Crushed stone and gravel from rocks. Technical requirements”, mining companies producing crushed dense rocks faced problem ensuring production output in compliance with two significantly different standards, both regulating properties stone. The complexity balanced approach to planning...

907 news & views Molecular J-aggregates provide a classic example of GOST; indeed, it is their exceptionally sharp absorption spectrum and absorption strength that cemented these somewhat complex structures as premium dyes for photographic media. It has been found that their radiative lifetime is short, and exhibits a characteristic temperature dependence 10. As in the case of nanoplatelets, th...

There is a need for cast irons with combined combination of properties in modern conditions. Such can be provided by ductile iron nodular and vermicular graphite, which essentially hybrid terms microstructure. The article found that graphite its mechanical rational alternative to malleable iron, namely the grade KCh45-6 (GOST 1215-79). Also, ratio nodular/vermicular (70…95/5…30%) was determined...

We present new attacks on key schedules of block ciphers. These attacks are based on the principles of related-key diierential crypt-analysis: attacks that allow both keys and plaintexts to be chosen with speciic diierences. We show how these attacks can be exploited in actual protocols and cryptanalyze the key schedules of a variety of algorithms, including three-key triple-DES.