in this paper, exact solution for two-plane transverse vibration analysis of axial-loaded multi-step timoshenko rotor carrying concentrated masses is presented. each attached element is considered to have both translational and rotational inertia. forward and backward frequencies and corresponding modes are obtained using transfer matrix method (tmm). the effect of the angular velocity of spin,...

Environmental conditions at one point of the annual cycle of migratory species may lead to cross-seasonal effects affecting fitness in subsequent seasons. Based on a long-term mark-resighting dataset and scoring of body condition in an arctic breeding goose species, we demonstrate a substantial effect of winter harshness on post-winter body condition. However, this effect was compensated along ...

NS3, an essential helicase for replication of hepatitis C virus, is a model enzyme for investigating helicase function. Using single-molecule fluorescence analysis, we showed that NS3 unwinds DNA in discrete steps of about three base pairs (bp). Dwell time analysis indicated that about three hidden steps are required before a 3-bp step is taken. Taking into account the available structural data...

in this paper, a new method is introduced for improving the efficiency of the residue number system, which uses both binary and residue representations in order to represent a number. a residue number system uses the remainder of the division in several different modules. conversion of a number to smaller ones and carrying out parallel calculations on these numbers greatly increase the speed of...

We study a class of deceptively similar games, which however have different player sets and predictions that vary with their cardinality. The economic, biological, political, and psychological applications are many. The game-theoretic principles involved are compelling as predictions rely on weaker and less controversial epistemic foundations than needed to justify backward inductions more gene...

We investigate the impact of the intergenerational nature of services, via backward compatibility, on the adoption of multi-generational platforms. We consider a mobile Internet platform that has evolved over several generations and for which users download complementary services from third party providers. These services are often intergenerational: newer platform generations are backward comp...

Backward-in-time Lagrangian dispersion models can efficiently reconstruct drifters trajectories by linking known arrival positions to potential sources. This approach was applied the deep water rose shrimp (Parapenaeus longirostris) in Strait of Sicily (central Mediterranean Sea). The objective identify spawning areas larvae that settle nursery grounds northern sector Sicily, thus quantifying e...

In the last decade, many factors, such as socio-political and econo-environmental ones, have led to a perturbation in timeline of worldwide development, especially countries regions having political changes. This us introduce new idea risk estimation taking into account non-uniform changes markets by introducing wavelet analysis. We aim explain econo-political situation Arab spring effect revol...