Nowadays, the use of Auxiliary power supply (APS) systems to energize low power rating appliances (e.g. televisions, water dispensers, etc.) and lighting (e.g. CFL lamps) has become pervasive in countries where long power rationing schemes are applied. Although the existing APS systems offer overload protection, it cannot be directly connected to the existing electric circuit unless heavy loads...

Farm youth often carry loads that are proportionally large and/or heavy, and field measurements have determined that these tasks are equivalent to industrial jobs with high injury risks. The purpose of this study was to determine the effects of age, load amount, and load symmetry on lower extremity joint moments during carrying tasks. Three age groups (8-10 years, 12-14 years, adults), three lo...

It has been suggested that exposure to heavy school backpacks is a relatively recent phenomenon. Factors such as reduced use of student lockers secondary to security concerns, an increased use of laptop computers, and increased carrying of non-educational loads such as musical instruments and sports equipment have potentially increased student exposure to heavy load carriage. It is therefore pl...

P ower is determined from work per unit of time and considered to be a fundamental aspect of successful athletic performance, especially in sports that require speed, agility, and explosive actions (7, 17, 27, 39). Consequently the optimal training techniques to maximize power and the transfer of power to athletic performance have received considerable attention from researchers and sport condi...

Individually Network reconfiguration or Capacitor control perform well in minimizing power loss and improving voltage profile of the distribution system. But for heavy reactive power loads network reconfiguration and for heavy active power loads capacitor placement can not effectively reduce power loss and enhance voltage profiles in the system. In this paper, an hybrid approach that combine ne...

Many essential appliances like air conditioners and refrigerators which run in our offices and homes draw a heavy starting current. When the main power resumes or turned ‘ON’ suddenly, all the loads are switched ‘ON’ at a time and a very heavy initial current is drawn from mains. The current drawn is so high that other equipments are affected. The valuable home appliances can be ruined for such...

Mechanical models of a chain drive system are proposed and applied to the theoretical analysis of chain drive system of a certain type of heavy duty apron feeder in mobile crushing station, including a five-bar model discussing the speed fluctuation problems of the chain drive system, an elastic collision model probing the effects of impulsive loads and a model of meshing area revealing the str...

When old adults participate in a strength-training program with heavy loads, they experience an increase in muscle strength and an improvement in the steadiness of submaximal isometric contractions. The purpose of this study was to determine the effect of light- and heavy-load strength training on the ability of old adults to perform steady submaximal isometric and anisometric contractions. Thi...