The non-Hermitian skin effect can be realized through asymmetric hopping between forward and backward directions, where all the modes of system are localized at one edge a finite 1D lattice. Here we show theoretically that in chain exciton-polariton micropillars with symmetric hopping, inherent nonlinearity exhibit double-sided (bi-skin) based fluctuations system, two edges system. To topologic...

This paper presents an optimization method that aims to mitigate disturbances in the radial-feed system of ring-pendulum double-sided polisher (RDP) during processing. We built a model RDP and developed single-tube robust predictive control enhance disturbance rejection capability system. To constrain states inside terminal constraint set further system’s robustness, we added ε-approximation ap...

Here we present results of calculations of emittance growth caused by quantum fluctuations of synchrotron radiation (QFSR) for a 1.5GeV Double-Sided Microtron (DSM) [1]. We did both semi-analytical estimations, employing known twiss parameters for the DSM orbits, and a computer simulation of these stochastical effects using the program SYTRACE [2]. This showed that the normalized emittance grow...

The design, fabrication, and characterization of the microstrip circular antenna arrays were presented. The proposed antennas were designed for single band at 2.45 GHz and dual bands at 3.3 3.6 and 5.0 6.0 GHz to support WLAN/WiMAX applications. The proposed single and dual band antennas showed omnidirectional radiation pattern with the gain values of 3.5 dBi at 2.45 GHz, 4.0 dBi at 3.45 GHz, a...

Right-sided double-lumen tubes (DLTs) have a bad reputation. Many experts in the field of thoracic anesthesia regard them as being difficult to position, having a small margin of safety for correct placement, and being prone to intraoperative malpositioning. However, in a randomized prospective study, Campos et al. compared the use of right vs left DLTs in two groups of 20 patients having left ...

TRACS (Tool for Research on Adaptive Cognitive Strategies) is a new suite of card games played with a special deck, where the back of each card is a clue to the front of the card. This design simulates the clue/truth structure of real world domains like medicine and warfare, where truths (fronts of cards) must be diagnosed from clues (backs of cards) in order to make decisions (cards to choose,...

In regular arc welding, the arc heat is transferred from the surface of the workpiece to melt it. In keyhole plasma arc welding, the workpiece is melted by the plasma jet which heats the wall of the keyhole along the thickness direction. Penetration is achieved with reduced heat input. However, the plasma jet only gains its energy in the arc before reaching the keyhole. In the keyhole where no ...