Available microwave notch-type damage detection sensors are typically based on monitoring frequency shift or magnitude changes. However, frequency shift testing needs sweep-frequency data that make scanning detection becomes difficult and time-consuming. This work presents a microwave near-field nondestructive testing sensor for detecting sub-millimeter notch-type damage detection in metallic s...

This paper presents the analysis, design, fabrication, and testing of a condenser microphone utilizing a thin low-stress polycrystalline silicon diaphragm suspended above a p+ perforated back plate. The microphone is fabricated using a combination of surface and bulk micromachining techniques in a single wafer process without the need of wafer bonding. The device shows sensitivities of -34 dB (...

The Glucose Oxidase (Gox) electrochemical sensors were used to detect a little amount of glucose. In this paper, the pure platinum plate (length of 5 cm and a width of 3 mm), the Ag/AgCl electrode and platinum electrode (diameter of 1 mm) were applied as a working electrode (W.E), reference electrode and auxiliary electrode sequential. Factors measured, glucose concentration and pH is Phosphate...

The Glucose Oxidase (Gox) electrochemical sensors were used to detect a little amount of glucose. In this paper, the pure platinum plate (length of 5 cm and a width of 3 mm), the Ag/AgCl electrode and platinum electrode (diameter of 1 mm) were applied as a working electrode (W.E), reference electrode and auxiliary electrode sequential. Factors measured, glucose concentration and pH is Phosphate...

in this paper vibration of ferromagnetic rectangular plates which are subjected to an inclined magnetic field is investigated based on classical plate theory and maxwell equations. levy type solution and finite element method using comsol software are used to obtain the frequency of the plate subjected to different boundary conditions, good agreements is obtained when computed results are compa...

dye-sensitized solar cells present promising low-cost alternatives to the conventional silicon (si)-based solar cells. the counter electrode  generally consists of pt deposited onto fto plate. since pt is rare and expensive metal, nanostructured carbonaceous materials have been widely investigated as a promising alternative to replace it. carbon nanotubes  have shown significant properties such...

For the analysis of trace amounts of hazardous organic compounds, we developed a new ion detection system for supersonic jet resonance-enhanced multiphoton laser ionization mass spectrometry. High sensitivity and selectivity have been achieved by combining a proto-type Daly detector, a newly designed conical ion lens, and a potential switch that can perform the function of a mass selector. This...

The plasma polymer films were prepared in the Typical Modular Reactor (TMR). Two modules of this reactor with different geometry were used – parallel plate electrode arrangement and tubular arrangement. The homogeneity in thickness and the same chemical structure were found in the former case in the area of the substrate plane, corresponding to the size of the excitation electrode. In the latte...

This paper deals with the role of hydrodynamic conditions using a filter-press-type FM01-LC electrochemical reactor equipped with 2D (plate) and 3D (mesh) boron doped diamond (BDD) electrodes for the incineration of recalcitrant organic matter. A strategy for the electrochemical incineration of different organics, such as p-cresol, o-cresol, indigo textile dye and vinasses, is shown. The curren...