Results 41 to 50 of about 142,451 (184)

Millimeter-Wave Lumped Element Superconducting Bandpass Filters for Multi-Color Imaging [PDF]

, 2009
The opacity due to water vapor in the Earth's atmosphere obscures portions of the sub-THz spectrum (mm/sub-mm wavelengths) to ground based astronomical observation.
Day, Peter K., Golwala, Sunil, Kumar, Shwetank, LeDuc, Henry G., Vayonakis, Anastasios, Zmuidzinas, Jonas   +5 more
core   +2 more sources

Reducing Influence of Hardware of Communication Station on Characteristics of Asymmetric Biconical Dipole Using Magneto-Dielectric Substrate on Finite-Size Metal Screen

East European Journal of Physics
Based on the approximate analytical solution previously obtained by the authors to the problem of excitation (radiation, scattering) of electromagnetic waves by an asymmetric biconical dipole with distributed surface impedance (constant and variable) in ...
Mikhail V. Nesterenko, Victor A. Katrich, Svetlana V. Pshenichnaya, Sergey А. Pogarsky   +3 more
doaj   +1 more source

Noninvasive Solution for Electrochemical Impedance Spectroscopy on Metallic Works of Art [PDF]

, 2012
Metallic works of art of cultural relevance are continuously subjected to corrosion as the environment becomes increasingly polluted. A fast and simple method to in situ assess the conservation conditions is therefore required.
Corbellini, Simone, Grassini, Sabrina, Parvis, Marco   +2 more
core   +1 more source

Influence of Electrophysical Parameters of Magnetodielectric Layer on a PCP on Its Electrodynamic Characteristics

East European Journal of Physics
Within the framework of the impedance concept, approximate analytical formulas for the distributed surface impedance of the magnetodielectric layer with the inhomogeneous permeability and permittivity located on a perfectly conducting plane (PCP) for the
Mikhail V. Nesterenko, Victor A. Katrich, Oleksandr M. Dumin, Natalya K. Blinova   +3 more
doaj   +1 more source

Analysis of ultrasonic transducers with fractal architecture [PDF]

, 2008
Ultrasonic transducers composed of a periodic piezoelectric composite are generally accepted as the design of choice in many applications. Their architecture is normally very regular and this is due to manufacturing constraints rather than performance ...
ANTHONY J. MULHOLLAND, GORDON HAYWARD, Kigami J., Lapidus M. L., LEIGH-ANN ORR, Meeker T. R., Neumaier A., O'Leary R. L., RICHARD L. O'LEARY, Yamaguti M.   +9 more
core   +1 more source

Non-Enzymatic Impedimetric Sensor Based on 3-Aminophenylboronic Acid Functionalized Screen-Printed Carbon Electrode for Highly Sensitive Glucose Detection

Sensors, 2019
A highly sensitive glucose sensor was prepared by a one-step method using 3-aminophenyl boronic acid as a unit of recognition and a screen-printed carbon electrode (SPCE) as an electrochemical transducer.
Ricardo Adriano Dorledo de Faria, Hassan Iden, Luiz Guilherme Dias Heneine, Tulio Matencio, Younès Messaddeq   +4 more
doaj   +1 more source

Failures in power-combining arrays [PDF]

, 1999
We derive a simple formula for the change in output when a device fails in a power-combining structure with identical matched devices. The loss is written in terms of the scattering coefficient of the failed device and reflection coefficient of an input ...
Cheng, Nai-Shuo, De Lisio, Michael P., Rutledge, David B., Weikle, Robert M., II, York, Robert A.   +4 more
core   +1 more source

Digital Sensing Systems for Electromyography

IEEE Transactions on Neural Systems and Rehabilitation Engineering
Surface electromyogram (EMG) signals find diverse applications in movement rehabilitation and human-computer interfacing. For instance, future advanced prostheses, which use artificial intelligence, will require EMG signals recorded from several sites on
Eisa Aghchehli, Iris Kyranou, Matthew Dyson, Kianoush Nazarpour   +3 more
doaj   +1 more source

The effect of short ray trajectories on the scattering statistics of wave chaotic systems

, 2009
In many situations, the statistical properties of wave systems with chaotic classical limits are well-described by random matrix theory. However, applications of random matrix theory to scattering problems require introduction of system specific ...
E. Ott, F. G. Tricomi, F. Haake, J. A. Hart, M. C. Gutzwiller, T. M. Antonsen   +5 more
core   +1 more source

Electrochemical Performance of Activated Carbon Derived from Treated Food-Waste

International Journal of Electrochemical Science, 2015
This work reports on the physical characteristics and electrochemical properties of the carbon derived from treated food-waste as electrode material. The eco-green carbon was produced by means of chemical activation using phosphoric acid as activating ...
Cheng-Kim Sim, S.R. Majid, Noor Zalina Mahmood   +2 more
doaj   +1 more source