n.a thin wedge of material (wood or metal or stone) for driving into crevices

Revision pedicle screws. Bigger, longer shims--what is best?
Splicing fuselage sections without shims
Electrical Current Shims for Correcting Magnetic Fields
Optimization of static field homogeneity in human brain using diamagnetic passive shims
A novel target-field method for finite-length magnetic resonance shim coils: I. Zonal shims
A novel target-field method for finite-length magnetic resonance shim coils: II. Tesseral shims
Systems, methods, and instruments for minimally invasive surgery
Aberrant localization of synchronous hemodynamic activity in auditory cortex reliably characterizes schizophrenia
Revision Pedicle Screws
genetic system controlling homothallism in Saccharomyce s yeasts