Abstract. This paper analyzes the voice transmission capacity in mobile ad hoc networks by performing simulations related to end-to-end delay, jitter, and the number of consecutive losses. We evaluate the influence of mobility and nodes density on the number of voice transmitting sources. Results show that the network capacity for voice transmission in multihop mobile networks decreases, down t...

At SHIPTRAP, exotic nuclei produced in fusion reactions and separated from the primary beam in the velocity filter SHIP are stopped in a gas-filled stopping cell. The ions are extracted, bunched and transferred to a double Penning trap system, where their masses can be measured. Contaminant ions created in the gas-filled stopping cell and abundantly produced reaction products different from the...

We consider uniform lossy transmission lines characterized by their primary parameters. Exact and approximate formulas for the characteristic impedance and propagation coefficient are reviewed and discussed for low-loss lines. Approximating the characteristic impedance by its real part can lead to erroneous results for the input impedance of shortand open-circuited stubs. This problem is analyt...

This paper introduces the importance of electrical utilities in our life, and the challenges the utilities are facing. It also discusses the nature of the Transmission and Distribution losses and details the steps that can be taken to reduce these very critical losses. It also explains how Management Information Systems (MIS) could be useful in tackling these problems. The last section gives a ...

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The loss minimization is a major role in Power System (PS) research. Transmission line losses in a PS can be reduced by Var compensation. After the establishment of power markets with transmission open access, the significance and use of Flexible AC Transmission Systems (FACTS) devices for manipulating line power flows to relieve congestion and maximize the overall grid operation have been incr...

This study inspects the optimum location of STATCOM device in long transmission line to acquire the maximum power system transient stability improvement. STATCOM is a kind of prominent and effective shunt FACTS device which is used in power system to enhance the power system stability and to regulate the line voltage. When it has been placed at the center point of a transmission line, play a ke...