OBJECTIVE The primary purpose of this study was to determine whether conventional anthropometric databases of the U.S. general population are applicable to the population of U.S. electric utility field-workers. BACKGROUND On the basis of anecdotal observations, field-workers for electric power utilities were thought to be generally taller and larger than the general population. However, there...

The twin Van Allen Probe spacecraft, launched in August 2012, carry identical scientific payloads. The Electric and Magnetic Field Instrument Suite and Integrated Science suite includes a plasma wave instrument (Waves) that measures three magnetic and three electric components of plasma waves in the frequency range of 10 Hz to 12 kHz using triaxial search coils and the Electric Fields and Waves...

The electric power industry in the United States and in other countries is undergoing profound regulatory and operational changes. The underlying rationale behind these transformations is to move once highly monopolized vertically-integrated industry from a centralized operation approach to a competitive one. The emerging competitive markets and an increase in the number of market participants ...

When one splits spacetime into space plus time, the spacetime curvature (Weyl tensor) gets split into an "electric" part E(jk) that describes tidal gravity and a "magnetic" part B(jk) that describes differential dragging of inertial frames. We introduce tools for visualizing B(jk) (frame-drag vortex lines, their vorticity, and vortexes) and E(jk) (tidal tendex lines, their tendicity, and tendex...

The development of tools for a multi-microrobot manipulating system prototype to handle cells and biomolecules is proposed. The system will be based on a cluster (5 to 10) of small (cm3) mobile autonomous robots, comprising several essential subsystems such as a global positioning system to provide accurate position information of each microrobot and advanced manipulating tools for biological a...

The article presents pedagogical and technological applications developed and studied as part of the research project 'Web-supported Mental Tools in Technology Education' at the University of Lapland. The applications allow sinlulation tools. nlodein network-based sol~~tions that support leaning. and other mental tools. as well as traditional and inodein digital learning materials. to be sinoot...

Accurate lifetime prediction of lithium-ion batteries is a great challenge for the researchers and engineers involved in battery applications in electric vehicles and satellites.  In this study, a semi-empirical model is introduced to predict the capacity loss of lithium-ion batteries as a function of charge and discharge cycles, operational time, and temperature. The model parameters are obtai...

In electric arc furnace steelmaking units, the essential parameters are reducing price, increasing production and decreasing environmental pollution. Electric arc furnaces are the largest users of electric energy in industry. The most important techniques that can be used to reduce the electric energy consumption in electric arc furnaces are scrap preheating, stirring, use of burners and hot ch...