Purpose: The use of power meters allows the assessment of cycling performance according to the record power profile [1]. Some power meters allow the measurement of power output (PO) in the pedals such as Look Keo Power (Look, Cedex, France) [2] and Garmin Vector (Olathe, USA) [3]. However, the results about these two systems [2, 3] should be treated with some caution given the presence of mean ...

A novel Z-source three-level inverter based on coupled inductors is proposed. The two inductors in traditional Z-source impedance network are replaced by two coupled inductors. The operating principle is described and the equations of boost factor and voltage stresses are deduced. Comparisons are made with other Z-source three-level inverters, especially the multicell switched inductor Z-source...

The wide range of available wavelengths, high brightness and increasing reliability are breaking new ground for diode lasers. Material processing with high power diode lasers in industrial manufacturing is getting more and more important. In automotive, medical device and also solar cell production they are important tools for automated production. Closed-loop temperature control by integrated ...

Stochastic excitation with a full-width-half-maximum bandwidth of 250 MHz was used to perform Fourier-transform (FT) high-field/high-frequency electron paramagnetic resonance (EPR) at 3.4T/95 GHz (W-band). Thereby, the required microwave peak power is reduced by a factor of tau(p)/T1 as compared to equivalent pulsed FT EPR in which the spin system with spin-lattice relaxation time T1 is excited...

Despite the high productivity in English of denominal verb formation by conversion, a constraint on possible interpretations is identified: intransitive denominal conversion verbs are infelicitous where the source nominal is intended to be an incremental theme (#apple ‘eat apple’), a patient (#shirt ‘wear shirt’), or the holder of a result state (#window ‘open window’). This little-studied cons...

A joint effort between the U.S. Naval Academy and the National Institute of Standard and Technology (NIST) resulted in the development of a method to characterize the capacitance and dissipation factor of a set of commercial standard four terminal-pair (4TP) capacitors. The method depends on network analyzer impedance measurements at high frequencies (40 MH–200 MHz) and a regression of these me...

Novel microstrip dual-band bandpass filters with controllable fractional bandwidths and good in-between isolation are presented and implemented. A half-wavelength stepped-impedance resonator is firstly characterized, aiming at producing the two resonant frequencies at 2.4 and 5.2 GHz. Two types of coupled microstrip lines in the parallel and anti-parallel formats are then investigated in terms ...

Additive Manufacturing (AM) has enabled the fabrication of metallic cellular materials that are interest in design lightweight impact resistant structures. However, there is a need to understand interactions between: (i) material architecture, (ii) AM process parameters, and (iii) as-built geometry, microstructure energy absorbing properties. In this work, we investigate quasi-static dynamic be...

in this paper a novel all-optical logic nand, nor and xor gate based on nonlinear directional coupler theory is demonstrated. we use the identical structure which contains three waveguides, for designing these gates; the only difference however, is the power of inputs light beam. in other words, while a beam with 4 w/μm in power considered as logical one, the output is nand gate and if a beam w...