Stress State Required for Pyramidal Dislocation Movement in Zinc

Pyramidal Slip in Zinc Single Crystals

SECOND ORDER PYRAMIDAL SLIP IN ZINC SINGLE CRYSTALS K. H. Adams,* R. C. Blish and T. Vreeland, Jr. W. M. Keck Laboratory of Engineering Materials California Institute of Technology Pasadena, California (U.S.A.) CALT-473-18 Measurements of strain, dislocation mobility and dislocation density have been made in 99.999% zinc single crystals stressed at room temperatur~ j_n comp.!:_ession along the ...

Movement and Ellipsis in Contrastive Left-Dislocation

In this paper, I argue that the Germanic construction traditionally labeled Contrastive Leftdislocation1 (CLD) reduces to an interplay of movement and ellipsis in an underlyingly biclausal structure. The resulting analysis relies exclusively on independently motivated grammatical operations (A-movement in syntax and clausal ellipsis/deaccenting at PF), thereby achieving a reduction of construct...

Creep Deformation by Dislocation Movement in Waspaloy

Creep tests of the polycrystalline nickel alloy Waspaloy have been conducted at Swansea University, for varying stress conditions at 700 °C. Investigation through use of Transmission Electron Microscopy at Cambridge University has examined the dislocation networks formed under these conditions, with particular attention paid to comparing tests performed above and below the yield stress. This pa...

Movement Issues in Left Dislocation Constructions

Hepatic ZIP14-mediated zinc transport is required for adaptation to endoplasmic reticulum stress.

Extensive endoplasmic reticulum (ER) stress damages the liver, causing apoptosis and steatosis despite the activation of the unfolded protein response (UPR). Restriction of zinc from cells can induce ER stress, indicating that zinc is essential to maintain normal ER function. However, a role for zinc during hepatic ER stress is largely unknown despite important roles in metabolic disorders, inc...