Purpose – The demand for higher bandwidth has resulted in the development of mm-wave phased array systems. This paper explores a technique that could be used to feed the individual antennas in a mm-wave phased array system with the appropriate phase shifted signal, to achieve required directivity. It presents differential Colpitts oscillators at 5 GHz and 60 GHz that can provide differential ou...

This work evaluates the feasibility of using 802.11 g ad hoc and 3G cellular broadband networks to wirelessly stream ultrasound video in real-time. Telemedicine ultrasound applications in events such as disaster relief and first-response triage can incorporate these technologies, enabling onsite medical personnel to receive assistance with diagnostic decisions by remote medical experts. The H.2...

OBJECTIVES To characterize linezolid resistance among blood cultured Staphylococcus epidermidis from patients at the Polyclinic Agostino Gemelli (2006-08). Isolates also showed elevated MICs of macrolide, lincosamide and streptogramin (MLS) compounds, which were investigated. METHODS Ten S. epidermidis exhibiting linezolid MICs ≥ 4 mg/L were included. Isolates were screened for cfr mutations ...

We have systematically investigated the effects of all possible combinations vacancies and silicon substitutions on electronic structure ? ? phases Ga2O3 using plane-wave density functional theory (DFT) methods. It was found that VGa defects are associated with a sufficient shift Fermi level to lower energy induce p-type behavior, formation energies in range 9.0 ± 0.2 eV. Calculations single at...

The following paper is devoted to an amplifier with gain control (Variable Gain Amplifier). role of amplification and addressed separately from the very beginning, achieve greatest possible independence required parameters both for itself (gain size, bandwidth, noise figure) controller (energy consumption control, distortion). core consists operational voltage feedback (VFB) in inverting circui...

The design of high-accuracy analogue circuits is becoming a difficult task with the scaling down of supply voltages and transistor channel lengths of the current mixed-signal integrated circuits. Most of this kind of circuits require the use of the highestperformance active cell: the operational amplifier (op amp). Designers are continuously working toward tradeoff solutions between gain, input...

This paper highlights the role of Space Syntax as a method to analyze spatial quality in Low-income Housing (L-iH) Malaysia. schemes such People’s Project (PPR) have been one government’s approaches coping with housing shortage Klang Valley. These L-iH reported be unsatisfactory inhabitants’ comfort, social and cultural needs. It is therefore crucial investigate relationship between space occup...