Problem statement: In this study Microelectrical Mechanical System (MEMS) switches were proposed to design a reconfigurable/multi-band antenna to replaced PIN diode switches or semiconductor switches due to lower insertion losses, good isolation, much lower intermodulation distortion, and lower power consumption. The antenna is able to operate at v

Nigeria is one of the countries having over 50 percent of her population suffering from poverty. Obviously, there have been serious efforts on the part of the government and other stakeholders in Nigeria at combating this socially menacing scourge of poverty. There is no doubt that by the overwhelming proportion and dimension, the trends in the inc

Lack of spoken and written training data is one o f the main issues encountered by Arabic automatic speech recognition (ASR) researchers. Almost all written and spoken corpora are not readily available to the public and many of them can only be obtained by purchasing from the Linguistic Data Consortium (LDC) or the European Language Resource Associ

The reaction of o–vanillin 1 with o-phenylenediamine 2PD, in dichloromethane at low conditions produced novel amino benzeneamine: 2-amino-N-(2-hydroxy-3-methoxybenzylidene) aniline 2. Intermediate 2 is isolated and obtained as single crystals and the structure was determined and studied by x-ray crystallography. The complete assignments of 2 were

The asymmetric unit of the title compound, C22H20N2O4·H2O, comprises a substituted benzimidazole molecule and a water molecule of crystallization. The dihedral angles between the benzimidazole ring system and the two outer benzene rings are 16.54 (4) and 86.13 (4)°. The dihedral angle between the two hydroxy-substituted benzene rings is 82.20 (5)

In the main molecule of the title compound, C22H20N2O4·1.13CH4O, the dihedral angles between the benzimidazole plane and the two benzene rings are 80.53 (10) and 82.76 (10)°. The solvent molecules are disordered between three positions, with refined occupancies of 0.506 (13), 0.373 (13) and 0.249 (5). The crystal structure is stabilized by interm

The production of composite material parts for automotive applications has grown steadily in recent years and is projected to show further growth in the nearest future. This composite automotive part undergoes casting or foundry processes such as mold preparation which is an essential component in the foundry industry. In this paper, the effects of

This paper aims to design and implement English digits speech recognition system using Matlab (GUI). This work was based on the Hidden Markov Model (HMM), which provides a highly reliable way for recognizing speech. The system is able to recognize the speech waveform by translating the speech waveform into a set of feature vectors using Mel Frequen

Remote monitoring and control of a multi-unit industrial facility can be achieved by utilizing the Internet. Electrical, mechanical and a variety of devices are switched on, off, and regulated from distant terminals. Commercially available components were used to build the system. Various aspects related to the method of access, security, standards

Many research and development works have been carried out in the area of high speed turning. Cermet tools have been employed for high speed machining for a long time due to their high wear resistance and high hot hardness. In the current work, research is focused on the analysis of wear behavior of cermets applying negative rake angles during high