We deform the supersymmetric black ring of five dimensional supergravity coupled to N − 1 vector multiplets to obtain an asymptotically Gödel supersymmetric black ring. For the U(1)3 model we lift this solution to obtain a three charge D1-D5-P supertube which asymptotes to a 1/2 supersymmetric plane wave of Type IIB supergravity. Further, we also show how one may deform the asymptotically flat ...

A state-of-the-art Chinese fuel cell city bus, using a hybrid power system is proposed. This comprises a proton exchange membrane fuel cell and Ni/MH batteries to combine the high energy density of fuel cells with the high power density of batteries. A dc/dc converter is placed between the fuel cell and the battery to control the electric power flow. This paper presents a novel control strategy...

INTRODUCTION Recent years have witnessed a growing interest in improving bus safety operations worldwide. While in the United States buses are considered relatively safe, the number of bus accidents is far from being negligible, triggering the introduction of the Motor-coach Enhanced Safety Act of 2011. METHOD The current study investigates the underlying risk factors of bus accident severity...

Affected by the Taiwan Strait Warm Current, evaporation intensity around is significantly higher than in other southern and eastern coastal areas of China. To explore a new effective method for maritime communication across Strait, we present preliminary investigation wireless microwave transmission an duct. From 9 to 14 o’clock, percentage duct height exceeding 10 m reached over 90% 2020. With...

the harmonic in distribution systems becomes an important problem due to an increase in nonlinear loads. this paper presents a new approach based on a graph algorithm for optimum placement of passive harmonic filters in a multi-bus system, which suffers from harmonic current sources. the objective of this paper is to minimize the network loss, the cost of the filter and the total harmonic disto...

GRIP is a high-performance parallel machine designed to execute functional programs using supercombinator graph reduction. It uses a high-bandwidth bus to provide access to a large, distributed shared memory, using intelligent memory units and packet-switching protocols to increase the number of processors which the bus can support. GRIP is also being programmed to support parallel Prolog and D...

In order to minimize power losses caused by high current and improve the voltage profile in the network distribution, the introduction of dispersed generations also called productions decentralized in distribution network (DG) plays an important role. The installation of DGs directly affects the power requested or purchased. The sizing and placement of DGs in the system must be optimal because ...