We introduce the notion of key stretching, a mechanism to convert short s-bit keys into longer keys, such that the complexity required to brute-force search a s+ t-bit keyspace is the same as the time required to brute-force search a s-bit key stretched by t bits.

OBJECTIVES The purpose of this study was to examine the effects of the use of a vapocoolant blend of pentafluoropropane and tetrafluoroethane (Gebauer's Spray and Stretch) on hip flexion stretching. METHODS Thirty volunteers were randomly assigned to spray and stretch treatment and stretch only control groups. Each group was assessed pre- and posttest on passive and active hip flexion range o...

The existence of a turbulent/turbulent interface (TTI) has recently been verified in the far wake circular cylinder exposed to free-stream turbulence (Kankanwadi & Buxton, J. Fluid Mech. , vol. 905, 2020, p. A35). This study aims understand physics within TTI. boundary, approximately 40 diameters downstream subjected grid-generated turbulence, was investigated through simultaneous cinematog...

background hamstring muscles play an important role in functional activities and relaxation and most people around the world suffer from the shortened muscles. different methods of repairing were suggested and there were disagreements with regard to determination of one technique with high efficiency. objectives this study aimed to introduce more effective method, either a static stretch or hol...

Loading conditions and complex geometry have led the cylinder heads to become the most challenging parts of diesel engines. The aim of this study is to compare the distribution of temperature and stress in the aluminum and magnesium cylinder heads under thermo-mechanical loads. The three-dimensional model of the cylinder heads was simulated in abaqus software and a two-layer viscoplasticity mod...

The role of nanofluids in the development many electronic devices at industrial level is very significant. This investigation describes thermal exploration for a bioconvective flow Maxwell nanoparticles over stretching and revolving cylinder placed porous medium. fluid contact with chemically reactive activation energy. swirling induced by rotary cylinder. magnetic effect constant strength <mml...

Abstract The current paper explores the influence of hybrid nanoparticles on dusty liquid flow through a stretching cylinder by employing modified Fourier heat flux law. Two phase model is implemented in present research to characterise fluid flow. Molybdenum disulphide and silver are used as suspended base water. equations which represent described changed into set ordinary differential opting...

magnetic field effects on the elastic response of polymeric piezoelectric cylinder reinforced with carbon nanotubes (cnts) is studied. the cylinder is subjected to internal pressure, a constant electric potential difference at the inner and outer surfaces, thermal and magnetic fields. the mori-tanaka model is used for obtaining the equivalent material properties of the cylinder. based on the ch...