21 research outputs found
Design of a 7-channel DC-SQUID gradiometer for brain research
No full textThe design of a 7-channel DC-SQUID gradiometer system for brain research is discussed. The system is based on high-quality DC-SQUIDs made by IBM. The flux transformer system consists of seven identical wire-wound asymmetric axial first order gradiometers in a hexagonal array. The pickup loop diameter is 20 mm, and the base length 60 mm. The lower ends of the gradiometers are on the curved bottom surface of a dewar with a 125 mm radius of curvature. The diameter of the active measurement area is 94 mm. The DC-SQUIDs are matched to FET preamplifiers using superconducting resonant transformers. The preamplifiers are connected to detector/controller units located in a separate RF-shielded cabinet outside of the magnetically shielded room. The digitized outputs of the detectors are sent to a set of signal processors via a fiber optic link.</p
Mediating role of dividend policy among its determinants and organizational financial performance
No full textAn analysis of corporate governance and company performance: a South African perspective
No full textGenerator Sources of EEG Large Waves Elicited by Mental Stress of Memory Recall or Mental Calculation.
No full textCorporate Governance Breach: An Overview of the Owner-Manager Agency Problem in the Nigerian Banking Industry
No full textA Case with the Basal Temporal Epileptic Focus Presenting Neocortical Propagation Detected by Magnetoencephalography.
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