working of financial_research

May 28th, 2015
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Abraham Lincoln University
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measure physical objects as well as abstract concepts. Measurement is a relatively complex and demanding task, specially so when it concerns qualitative or abstract phenomena. By measurement we mean the process of assigning numbers to objects or observations, the level of measurement being a function of the rules under which the numbers are assigned.

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NATURAL VENTILATIONVentilation, deriving from the Latin ventus and meaning the movement of air, is used to define air change in buildings from fan-driven mechanical systems or from natural air flow through ventilating openings. This article discusses natural (wind-pressure driven) air flow principles and design techniques for ventilation to satisfy human comfort.The physics of natural ventilationBreezes act according to the laws of nature. The designer must understand certain scientific principles before deciding with accuracy how to control air movement.UTILITIES ELECTRIC POWER TRANSMISSIONElectric-power transmissionis the bulk transfer ofelectrical energy, from generatingpower plantstoelectrical substationslocated near demand centers. This is distinct from the local wiring between high-voltage substations and customers, which is typically referred to aselectric power distribution. Transmission lines, when interconnected with each other, become transmission networks.UNDERGROUNDINGElectric power can also be transmitted byunderground power cablesinstead of overhead power lines. Underground cables take up less right-of-way than overhead lines, have lower visibility, and are less affected by bad weather. However, costs of insulated cable and excavation are much higher than overhead construction. Faults in buried transmission lines take longer to locate and repair. Underground lines are strictly limited by their thermal capacity, which per

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