Sign language is a root level communication language for deaf people or those who are hearing impaired, so they found difficulty to communicate with the outer world. Hearing impaired people also had less reading skills, than the average educated person [5] so they cannot understand or gain information from outer world such as from Banks, Railways, and many more sector, they lack basic communica...

Polyphase is a common class of pulse compression waveforms in the radar systems. Oppermann code is one of the used codes with polyphone pattern. After compression, this code has little tolerant against Doppler shift in addition to its high side lobe level. This indicates that the use of Oppermann code is an unsuitable scheme to radars applications. This paper shows that the use of amplitude wei...

Global Navigation Satellite System performance can be significantly enhanced by introducing inter-satellite links (ISLs) in navigation constellation. The improvement in position, velocity, and time accuracy as well as the realization of autonomous functions requires ISL distance measurement data as the original input. To build a high-performance ISL, the ranging consistency among navigation sat...

Real-time multimedia applications impose strict delay bounds and are sensitive to delay variations. Satellite link handover increases delay jitter and signaling overhead as well as the termination probability of ongoing connections. To satisfy the QoS requirements of multimedia applications, satellite routing protocols should consider link handovers and minimize their effect on the active conne...

Triptolide (TP), the main bioactive component of Tripterygium wilfordii Hook F, can cause severe hepatotoxicity. Isoliquiritigenin (ISL) has been reported to be able to protect against TP-induced liver injury, but the mechanisms are not fully elucidated. This study aims to explore the role of nuclear transcription factor E2-related factor 2 (Nrf2) and hepatic transporters in TP-induced hepatoto...

A system to automatically transcribe lectures and presentations has been developed in the context of the FP6 Integrated Project CHIL. In addition to the seminar data recorded by the CHIL partners, widely available corpora were used to train both the acoustic and language models. Acoustic model training made use of the transcribed portion of the TED corpus of Eurospeech recordings, as well as th...

This paper describes recent research carried out in the context of the FP6 Integrated Project CHIL in developing a system to automatically transcribe lectures and presentations. Widely available corpora were used to train both the acoustic and language models, since only a small amount of CHIL data was available for system development. Acoustic model training made use of the transcribed portion...

A 16-element optical phased array integrated on chip is presented for achieving two-dimensional (2D) optical beam steering. The device is fabricated on the silicon-on-insulator platform with a 250 nm silicon device layer. Steering is achieved via a combination of wavelength tuning and thermo-optic phase shifting with a switching power of P(π)=20  mW per channel. Using a silicon waveguide gratin...

The Intermediate Silicon Layers Detector is presently being built as part of the CDF upgrades to prepare for the next Tevatron data taking run, scheduled to start in the year 2000. The ISL will be located in the radial region between the Silicon Vertex Detector and the Central Outer Tracker. It will add tracking in the forward region and signi cantly improve tracking in the central region. Toge...

A dual-polarized wideband low sidelobe slot array antenna for wireless communication systems in the V-band is proposed this work. Taylor distribution applied with each radiating as a tapering unit both polarizations. compact 2 × elements subarray designed to achieve stable amplitude and phase among two sets of integrated unequal power dividers E- H-planes inside subarray. Then, layers orthogona...