The low-frequency methods used by most utilities nowadays for measuring the resistance of transmission line ground electrodes are inaccurate or cannot be applied when overhead groundwires are connected to the towers. Moreover, many of them are costly and time consuming. This paper proposes and compares two new methods for evaluating the transient impedance of transmission line towers. Both meth...

The transmission line towers are one of the important life line structures in the distribution of power from the source to the various places for several purposes. The predominant external loads which act on these towers are wind and earthquake loads. In this present study tower is analyzed using Indian Standards IS: 875:1987(Wind Load), IS: 802:1995(Structural steel), IS:1893:2002 (Earthquake)...

Two studies evaluated the effects of a group contingency on electricity conservation. In Study 1, residents of 166 apartment units in three towers held meetings and received biweekly payments of the value of electricity saved compared to predicted use. The group contingencies were initiated in each tower in a multiple-baseline design. The program produced substantial savings in one tower (11.2%...

We study the problem of placing a set T of broadcast towers in a simple polygon P in order for any point to locate itself in the interior of P . Let V (p) denote the visibility polygon of a point p, as the set of all points q ∈ P that are visible to p. For any point p ∈ P : for each tower t ∈ T ∩ V (p) the point p receives the coordinates of t and the Euclidean distance between t and p. From th...

In this paper, we address the problem of connecting two distant communication nodes by deploying a number of mobile robots that act as gateways between the towers. To address this problem, we propose ODEN, a path-planning algorithm that relies on an elastic network to produce an obstacle-free path between the two towers. This algorithm builds over a previous elastic-network-based path-planning ...

Many types of invisible electromagnetic waves are produced in our atmosphere. When these radiations penetrate our body, electric fields are induced inside the body, resulting in the absorption of power, which is different for different body parts and also depends on the frequency of radiations. Higher power absorption may result into health problems. In this communication, effects of electromag...

We study the spontaneous formation of granular towers produced when dry sand is poured on a wet sand bed. When the liquid content of the bed exceeds a threshold value W*, the impacting grains have a nonzero probability to stick on the wet grains due to instantaneous liquid bridges created during the impact. The trapped grains become wet by the capillary ascension of water and the process contin...