When designing electric motors, many types of performances (electrical and mechanical characteristics) must be predicted with good accuracy. In general, these are determined based on complex theoretical calculations, but calculations include various assumptions. Therefore, it is difficult to eliminate prediction errors when predicting performance, necessary improve accuracy by referring actual ...

Successful endodontic treatment mainly relies on preserving the original anatomy of the root canal while avoiding instrument fractures and iatrogenic preparation errors, such as loss of working length, zipping, or ledging [1,2]. In most cases, rotary instrumentation has proved a valuable advancement for meeting these parameters. Unlike stainless steel files, nickel-titanium instruments have suf...

Electric motors are rechargeable products. The important point in the system of maintenance and repair electric is choice optimal strategy. At present most widespread planned preventive However, condition based gaining importance. In this paper, strategy out above-mentioned strategies considered. For purpose, expressions have been developed to determine total costs associated with these for mot...