The ability to live without being controlled by any action, judgment and outside factors including opinions regulations is defined the term Independent. But in reality physical movement for travelling or simply walking through a crowded street pose great challenge visually impaired person. Also they must learn every detail about home environment such as placement of tables; chairs etc. prevent injury. Because this disability have sacrifice their independence daily living depending on sighted...

A novel hygrometer is presented, comprising a capacitive humidity sensor with porous silicon (PS) dielectric and electronics. The adsorption of water vapor by the PS layer leading to change its effective constant modeled an medium approximation (EMA). simple, but precise, phase-sensitive electronic circuit has been developed. This detects any phase sinusoidal signal transmitted through correlates ambient humidity. It outlined how nonlinear response compensated piecewise linearization. tested...

A multilayer graphene (MLG) film was grown on thermally oxidized silicon (SiO2/Si) substrate by atmospheric pressure chemical vapor deposition (APCVD). The formation of the MLG and presence oxide surface were confirmed Raman spectroscopy electron dispersive (EDS), respectively. An energy gap 0.234 eV determined optical transmission method. morphology studied field emission scanning microscopy (FESEM) atomic force (AFM). planar device with lateral Pd metal contacts used for hydrogen sensor...

In the very active area of molecular electronics, individual molecules or self-assembled have been shown to behave as microscopic switches in transistor and diode architectures. particular, it has demonstrated that wires inserted into nanopores positioned between two metallic electrodes can be used elements for fabrication resonant tunnelling diodes (RTDs), whose I/V characteristics reveal a negative differential resistance (NDR) behaviour (i.e. slope curve). this paper, we describe at...

Artificial Neural Network (ANN) based pattern recognition technique is used for ensuring the reliable evaluation of responses from an array Zinc Oxide (ZnO) sensors comprising pure ZnO nano-rods and composites ZnO–SnO2. All were fabricated in lab. The paper first reports development artificial neural network model successfully recognizing different concentration hydrogen, methane carbon mono-oxide. Feed forward back propagation was classification gases at critical concentrations. optimized...

The structure of electrodes in the electrochemical formation cell porous silicon greatly influences planar uniformity layer. In this paper a systematic study large area layer formed by different electrode is reported based on photoluminescence and reflectance scanning surface. A new design developed for achieving satisfactory

Pure zinc oxide (ZnO) nanorods and zinc-tin (ZnO-SnO2) composites based gas sensors were fabricated tested for favorable sensing functionality. Systematic comparative study on properties like response magnitude, selectivity, recovery times, etc. of both the done three test gases viz., hydrogen, methane carbon mono-oxide. The obtained results clearly demonstrate enhanced characteristics sensor made up ZnO-SnO2 over that pure ZnO one. Fabricated gave highest selectivity towards hydrogen at a...

In this paper, a multi-parametric optical glucose sensor based on nano-structured porous silicon (PSi) has been reported. The surface of the nano-PSi functionalized by physisorption oxidase for selective detection molecules. Multiple parameters, such as specular reflectance, scattering due to diffuse reflection, and absorption loss, have measured from single reflected image white light in presence absence through processing software. results indicate that reflectance decreases loss increase...

Nanostructured CuNiZnFe <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> O xmlns:xlink="http://www.w3.org/1999/xlink">4</sub> in varied molar concentrations is synthesized by the rate-controlled co-precipitation method. The powder X-ray diffraction pattern and analysis of their micrographs have confirmed Single-phase structure prepared samples. Field emission scanning electron microscopy study reveals surface morphology samples with...

Current research endeavor encompasses comprehensive threshold voltage analysis of a Gaussian-doped Dual work function Material (DM) Cylindrical Gate-all-around (CGAA) MOSFET with temperature variance in presence fixed interface trap charges. Threshold reliability over wide range charges and its Gaussian-parameters such as projected straggle based dependencies are exhibited. Short channel response the device has also been considered. Analytical results corroborated through simulation outputs...