This paper presents our ongoing work on the analysis and optimization of cryptanalytic time-memory tradeoffs targeting the COPACOBANA architecture [KPP06] as platform for the precomputation/online phase.

Low latency, application, specific multipliers are required fo r m,any DSP algorithms. Tree multipliers are an obvious answer to this requirement. However, tree architectures have not been considered for automatic multiplier generation because they have been conszdered to be irregular. I n this paper, a recursive methodology f o r generating n-2 compressors (for n in the range 3 5 n 5 64) using...

Objectives: To correlate between the different lengths, angles of insertion and mini-implant material find out most retentive combination.
 Materials methods: 48 mini-implants (24 Titanium 24 stainless steel) lengths 6mm, 8mm 1.5 mm diameter were inserted into humerus bone goat at two angulations, 600 900. insert in respective custom made template was confirmed with digital radiographs. Fo...

An imbedded language system for the hyout of VLSI circuits is examined. It is shown that through the judicious use of this system, a large variety of circuits can be designed with circuit density and performance comparable to traditional full-custom design methods, but with design costs more comparable to semi-custom design methods, The high performance of this methodology is attributable to th...

Rio de Janeiro’s Integrated Command and Control Center (CICC-RJ ) has already seen duty in several large scale events which happened in town, some planned, others not. CICC-RJ is part of Rio de Janeiro state’s response to the Brazilian national government’s mandate to improve the state’s ability to anticipate and respond coherently to public safety events in the region. Its infrastructure is in...

Abstract Supercritical water oxidation (SCWO) can efficiently and harmlessly dispose sewage sludge, while corrosion phenomena lead to rapid shutdown and/or failure of expensive process equipments in a supercritical system. The behavior titanium alloys, Ni-based alloys stainless steel exposed sludge at 450 °C, 26 MPa for 60 h was investigated by means gravimetry, scanning electron microscopy, en...

AISI 316L stainless-steel-based tungsten carbide composite layers fabricated via laser metal deposition are used for additive manufacturing. Heat treatment practices such as low-temperature plasma carburizing and nitriding improve the hardness corrosion resistance of austenitic stainless steels formation expanded austenite, known S phase. In present study, to enhance resistances stainless-steel...

Composite concrete Filled Tubular Steel (CFT) members, which have excellent deformability due to the well-known confined and constrained interaction between steel tube concrete, largely been utilized as bridge piers or columns in high-rise buildings, resulting increased strength decreased column size. This study examined experimental performance of filled with reactive powder (RPC) under axial ...

Steels with regulated austenitic transformation during exploitation (RATE) are a new class of ferritic-based tungsten-free tool steels for hot forming. The study obtained quantitative data on the high-temperature strength RATE steel composition after quenching and tempering. stress-strain curves plotted tendency to strain hardening at temperatures 450 750 °C is estimated. It was established tha...

The present work is focused on the investigation of the performance and long-term stability of two composite palladium membranes under different operating conditions. One membrane (Pd/porous stainless steel (PSS)) is characterized by a ~10 µm-thick palladium layer on a porous stainless steel substrate, which is pretreated by means of surface modification and oxidation; the other membrane (Pd/Al...