The torque reversals of 4U 1626–67

Effects of q-profile structures on intrinsic torque reversals

Changes in rotation have been observed in LHCD experiments. From these observations, reversals in intrinsic torque have been inferred. This paper identifies the mechanism for intrinsic torque reversal linked to magnetic shear (ŝ). Gyrokinetic simulations demonstrate that as compared to the normal ŝ case, the intrinsic torque reverses, for ŝ < ŝcrit. Analysis shows that the reversal occurs due t...

Intrinsic torque reversals induced by magnetic shear effects on the turbulence spectrum in tokamak plasmas

Warped Disks as a Possible Origin of Torque Reversals in Accretion-Powered Pulsars

Enigmatic transitions between spin-up and spin-down have been observed in several X-ray pulsars accreting matter via an accretion disk. In these transitions, the torque changes sign but remains at nearly the same magnitude. It has been noted previously that alternating prograde and retrograde disk flows would explain many features of the torque reversals, although it has been unclear how a stab...

Knee extension torque during repeated knee extension-flexion reversals and separated knee extension-flexion dyads.

I measured the knee extension torque, produced by eight hemiparetic patients during repeated knee extension-flexion reversals and during separated knee extension-flexion dyads, to determine the effect of "reversal of antagonists" on knee extension torque. The hemiparesis in these eight patients was secondary to intracranial lesions. I tested their involved lower extremity on an isokinetic dynam...

the effect of taftan pozzolan on the compressive strength of concrete in the environmental conditions of oman sea (chabahar port)

cement is an essential ingredient in the concrete buildings. for production of cement considerable amount of fossil fuel and electrical energy is consumed. on the other hand for generating one tone of portland cement, nearly one ton of carbon dioxide is released. it shows that 7 percent of the total released carbon dioxide in the world relates to the cement industry. considering ecological issu...