A single-switch N-stage Z-network high-gain boost converter is proposed in this study, which can be applied the field of chip etching for bias provision. The circuit topology, operation mode, voltage gain and control strategy are analyzed. Thereafter, steady-state performance analyzed with small signal stability modeling. simulation model built using Simulink compared traditional quadratic circ...

Discovery of new catalysts is crucial for future growth and development environmentally friendly energy conversion processes e. g. the production hydrogen by water electrolysis. We developed an aerosol-based synthesis technique as a comparatively fast facile method to prepare multi-metal catalysts. 22 different quinary metal compositions were synthesized investigated with respect their activity...

The paper deals with the numerical and experimental development of single stage radio frequency (RF) amplifier with high gain for 2.4GHz receiver front-ends. The work is motivated by the increasing demand of high-gain receiver amplifier in low-cost especially for wireless local area network (WLAN) application. Prior hardware realization and experimental characterization, the proposed amplifier ...

Background. Since the incidence of adenocarcinoma of the oesophagus is rising, the prognosis is poor, and surveillance programs are expensive and mostly cost ineffective, there is a need to increase the knowledge of risk factors in Barrett's oesophagus and oesophageal cancer in order to be able to give attention to medical prevention and/or surveillance programs. Aim. To study if there is a cor...

Given a Space-Time Block Code (STBC) Multiple-Input Multiple-Output SpatialMultiplexing system (MIMO-SM), both diversity gain and spatial multiplexing gain can be obtained simultaneously [1, 2]. An optimum decision algorithm is proposed to achieve an additional weight gain in the Multiple-Input Multiple-Output (MIMO) Space-Time Block Coding (STBC) wireless system design without increased hardwa...

Wavelength conversion is very essential in wavelength division multiplexing (WDM) networks where blocking due to wavelength contention can be reduced to a good extent. We present a theoretical model to analyze the effect of intraband effects like spectral hole burning and carrier heating on wavelength conversion exploiting the cross-gain modulation (XGM) technique in a bulk semiconductor optica...

this study was aimed to evaluate the effects of diets containing some hot and coldtemperament herb seeds according to iranian traditional medicine (itm) on some metabolicparameters in acute (24 h) and sub-acute (7 day) experiments that were performed on rats. foreach experiment, effects of diets containing 10% herb seeds in category of hot (anise, fennel,ajowan) and cold (cucumber, watermelon, ...

A novel high step-up DC-DC converter with coupled-inductor and switched-capacitor techniques is proposed in this paper. The capacitors are charged in parallel and are discharged in series by the coupled inductor, stacking on the output capacitor. Thus, the proposed converter can achieve high step-up voltage gain with appropriate duty ratio. Besides, the voltage spike on the main switch can be c...

The new material on the following genera of subfamily Meconematinae is considered: Subtilodecma gen. n.; Xizicus Gor.; Xiphidiopsis Redt.; Rhinoteratura Gor., stat. Borneratura Odonturisca Gor. genus here understood to contain four subgenera at least: nominotypical one; Euxiphidiopsis resurr.; Paraxiphidiopsis subgen. Dinoxiphidiopsis replacement generic name Caprixizicus nom. n. proposed for P...

We design a Nakagami multi-channel simulator by modeling the received combined signal-to-noise ratio as a finite-state Markov chain, following a previously proposed approach. Our model generates directly the error process at the output of a diversity receiver and can emulate selection, maximal-ratio and equal-gain combining. As the order of diversity increases, the savings in computational comp...