Special measures ensure improvements. A school subject to special measures will have regular short-notice Ofsted or Estyn inspections to monitor its improvement. The senior managers and teaching staff can be dismissed and the school governors replaced by an appointed executive committee. If poor performance continues the school may be closed as in the case of the Frank Montgomery School in Kent. The current circumstances under which a school may be placed in special measures, and the procedures to follow, are stipulated by the Education Act 2005. Prior to 2005 special measures were applied to any school which was failing to supply an
Electrical contacts free path of electrons formula_1, ballistic conduction of electrons occurs, resulting in a phenomena known also as "Sharvin resistance" . Contact force or pressure increases the size of the a-spot which decreases the constriction resistance and the electrical contact resistance. When the size of contacting asperities becomes larger than the mean free path of electrons, Holm-type contacts become the dominant transport mechanism, resulting in a relative low contact resistance. Electrical contacts An electrical contact is an electrical circuit component found in electrical switches, relays, connectors and circuit breakers. Each contact is a piece of electrically conductive material, usually metal. When