Results 21 to 30 of about 508,717 (304)

Resonant frequency stabilization technique in series-series contactless energy transfer systems

Archives of Electrical Engineering, 2017
A technique for stabilization of resonant frequency is proposed in this paper. An additional power circuit, a compensator that allows keeping constant resonance frequency was introduced by the authors.
Marcinek M., Hołub M., Kalisiak S., Pałka R.   +3 more
doaj   +1 more source

Influence of M-phase chromatin on the anisotropy of microtubule asters [PDF]

, 1996
In many eukaryotic cells going through M-phase, a bipolar spindle is formed by microtubules nucleated from centrosomes. These microtubules, in addition to being "captured" by kinetochores, may be stabilized by chromatin in two different ways: short-range
Dogterom, M., Félix, M. A., Guet, C. C., Leibler, S.   +3 more
core   +2 more sources

Research on inertia characteristics and lifting strategy of grid-connected inverter

河南理工大学学报. 自然科学版
ObjectivesTo address the problem of low inertia operation in the power system caused by the integration of a large-scale new energy source，Methodsthe inertia characteristics of grid-connected inverters were analyzed and methods of improving their inertia
LI Jifang, HAN Aishan
doaj   +1 more source

Frequency stabilization of an ultraviolet semiconductor disk laser [PDF]

, 2013
We report a tunable, narrow-linewidth UV laser based on intracavity second-harmonic generation in a red semiconductor disk laser. Single-frequency operation is demonstrated with a total UV output power of 26 mW. By servo-locking the fundamental frequency
Hastie, Jennifer, Paboeuf, David, Schlosser, Peter   +2 more
core   +1 more source

Robust, frequency-stable and accurate mid-IR laser spectrometer based on frequency comb metrology of quantum cascade lasers up-converted in orientation-patterned GaAs

, 2013
We demonstrate a robust and simple method for measurement, stabilization and tuning of the frequency of cw mid-infrared (MIR) lasers, in particular of quantum cascade lasers.
Ernsting, Ingo, Grisard, Arnaud, Gérard, Bruno, Hansen, Michael G., Lallier, Eric, Schiller, Stephan, Vasilyev, Sergey V.   +6 more
core   +1 more source

Stabilization of grid frequency through dynamic demand control [PDF]

, 2007
Frequency stability in electricity networks is essential to the maintenance of supply quality and security. This paper investigates whether a degree of built-in frequency stability could be provided by incorporating dynamic demand control into certain ...
Freris, Leon L., Infield, David G., Short, Joe A.   +2 more
core   +1 more source

Frequency minimum inertia calculation of complex power systems based on an improved simulated annealing algorithm

Frontiers in Energy Research
In order to enhance the inertia situational awareness and stability of the power system in the context of the reduction of power system inertia and the challenge of frequency stability due to the high proportion of new energy access, the background and ...
Qiang Zhang, Qi Jia, Tingqi Zhang, Hui Zeng, Chao Wang, Wansong Liu   +5 more
doaj   +1 more source

Fast, precise, and widely tunable frequency control of an optical parametric oscillator referenced to a frequency comb

, 2017
Optical frequency combs (OFC) provide a convenient reference for the frequency stabilization of continuous-wave lasers. We demonstrate a frequency control method relying on tracking over a wide range and stabilizing the beat note between the laser and ...
Glöckner, Rosa, Prehn, Alexander, Rempe, Gerhard, Zeppenfeld, Martin   +3 more
core   +1 more source

Stabilized high-power laser system for the gravitational wave detector advanced LIGO [PDF]

, 2012
An ultra-stable, high-power cw Nd:YAG laser system, developed for the ground-based gravitational wave detector Advanced LIGO (Laser Interferometer Gravitational-Wave Observatory), was comprehensively characterized.
Bogan, C., Danzmann, K., Frede, M., Kim, H., King, P., Kwee, P., Puncken, O., Pöld, J., Savage, R. L., Seifert, F., Wessels, P., Willke, B., Winkelmann, L.   +12 more
core   +1 more source

Transportable optical cavity systems for terrestrial and space-borne portable optical atomic clocks

Frontiers in Quantum Science and Technology
High finesse optical cavities have been the backbone of realizing narrow linewidth lasers to drive coherent excitations on dipole-forbidden transitions in atoms and ions for applications in atomic frequency standards.
Rishabh Pal, Vikrant Yadav, Arijit Sharma, Arijit Sharma   +3 more
doaj   +1 more source