[en] We present a frequency up-converted electromagnetic (EM) energy harvester that is capable of powering various portable devices and systems by hand-shaking. It consists of a freely movable ball to impact periodically (at low frequency) on the parabolic top surface of a mass of a cantilever beam allowing it to vibrate at higher (resonant) frequency. Relative motion between a magnet attached to the cantilever and a coil induces voltage. A prototype of the energy harvester has been fabricated and characterized by applying vibration from handshaking. The frequency and acceleration of the applied hand-shaking vibration has been experimentally found to be 4.6 Hz and 2g, respectively. With an optimum distance between magnet and coil, a maximum 672 mV peak-peak open circuit voltage of 370 Hz frequency and a maximum 413μW peak power delivered to an 85Ω matched load resistance have been obtained, respectively

[en] The behavior of electricity consumers results in electricity consumption patterns. Two characteristic periods of electricity consumption were created: peak and off-peak consumption. Power plants operating in the peak period are called peak load power plants, and power plants operating in the off-peak period are called base load power plants. The characteristic features of fixed and variable costs determines the efficiency degree of each power plant in the system. As the result, the price level of electricity generated in peak load and base power plants significantly differs. This fact should be taken into account in the electric power system development planning. (author). 1 ref., 3 figs., 4 tabs

[en] General rogue waves in the focusing and defocusing Ablowitz–Ladik equations are derived by the bilinear method. In the focusing case, it is shown that rogue waves are always bounded. In addition, fundamental rogue waves reach peak amplitudes which are at least three times that of the constant background, and higher-order rogue waves can exhibit patterns such as triads and circular arrays with different individual peaks. In the defocusing case, it is shown that rogue waves also exist. In addition, these waves can blow up to infinity in finite time. (paper)

[en] We present a rather simple metamaterial design consisted of only a rectangle-shape patch structure with a very small air strip on it to realize triple-band absorption at terahertz frequency. Results prove that three narrow-band absorption peaks are obtained at frequencies of 0.94 THz, 2.44 THz, and 2.85 THz, and the average absorption rates of the three peaks are 97.00%. The resonance at 0.94 THz is attributed to the fundamental mode (or 1-order) response of the metamaterial, while the last two modes are due to the two splitting modes of the 3-order response. The parameter changes of the small air strip in the rectangle-shape patch structure have large influence on the absorption performance of the metamaterial, in particular of the last two modes. Importantly, quad-band absorption can be obtained by introducing one more air strip in the rectangle-shape patch structure. It is found that the first resonance peak is derived from the 1-order response, whereas the last three modes stem from the three splitting modes of the 3-order response of the metamaterial. The combination of the 1-order resonance and multiple splitting modes of the 3-order response provides new design method to realize multiple-band light absorbers. (paper)

No abstract available

[en] This Supplement provides the results of the staff's evaluation and resolution of approximately 400 technical concerns and allegations in the mechanical and piping area regarding construction practices at the Comanche Peak facility. This report does not address the Walsh/Doyle allegations regarding deficiencies in the pipe support design process and the new allegations recently received by the staff

No abstract available

[en] A white-light continuum is generated in bulk sapphire using 280 fs, 1053 nm centre wavelength pulses at peak powers well above the critical power. The resulting spectrum extends from 400 nm up to at least 1100 nm with good conversion efficiency. A high-pass filter is used to remove the residual peak at the pump wavelength, producing a broad, flat spectrum in the near infrared region. We characterize the intensity and phase of the continuum by using cross-correlation frequency-resolved optical gating. We show that using pump pulses above 1 µm is a very interesting approach for generating broad continua with favourable characteristics. (paper)

[en] Ramp Feed experiments performed on TRACY are simulated with the code CriSAA which is used for the criticality excursion analysis. The transient characteristics of open criticality excursions are studied. The predictive results are shown. The statistics characteristics, including time and energy to first peak, power of first peak and the total energy, are obtained by simulations. The effects of the reactivity insertion rate and the uranium concentration on the criticality excursion are analyzed. Fuchs model are improved to be suitable for open criticality excursion in this paper. It is helpful to understand the open excursion. (authors)

No abstract available