The behavior of polyelectrolytes and polyampholytes in semi-dilute solutions is investigated theoretically. Various statistical charge distributions along the polyelectrolyte chains are considered: (i) smeared, where the charges are uniformly distributed along the chain. (ii) Annealed, where the charges are allowed to associate and dissociate from the chain. (iii) Permuted, where the total numb...

It is assumed that three lepton families (ν e , e), (ν µ , µ), (ν τ , τ) carry charges, which are sources of electronic, muonic and tauonic massless vector particles, respectively. Various manifestations of these hypothetical photons are discussed. We know only one photon that is coupled to the electric charge of particles. One of the most fundamental properties of the electric charge is its co...

With the increase in popularity of mobile devices, there has been a significant rise in mobile related security problems. The biggest threat for a mobile subscriber is lost or stolen device, which can lead to confidential data leakage, identity theft, misuse, impersonation, and high service charges. A significant amount of time may elapse between losing a device and disabling it through the ser...

In this paper, modeling and control strategies for a new observability-optimized piezoelectric microactuator are presented. The targeted applications concern mainly the design of microgripper for micromanipulation tasks. The device has been designed using a topological optimization method, which takes into account the optimal full integration of piezoelectric actuating and sensing elements with...

A wide, multimode segment of a dielectric optical waveguide, enclosed by Bragg reflectors and evanescently coupled to adjacent port waveguides, can constitute the cavity in an integrated optical microresonator. It turns out that the device can be described adequately in terms of an approximate coupled mode theory model which involves only a few guided modes as basis fields. By reasoning along t...

We designed a system using hand-held computers allowing physicians in the hospital setting to access their surgical schedules, to track patients in multiple hospitals, and to quickly enter billing information. The physicians would then update their schedules and pass billing information electronically when they returned to the office. The system was successfully implemented, it was well accepte...

Abstract This paper investigates Page curves on the branes with higher codimensions and charges. We study two kinds of doubly holographic modes, AdS/dCFT cone holography. In AdS/dCFT, gravitations brane are massive, black hole codim-m is coupled non-gravitational bath AdS boundary. Following standard approach, we derive curve for eternal holes. On other hand, holography includes massless gravit...

In this paper, a method is proposed for extraction of coupled networks from layout information for simulation of electrothermal device behavior. The networks represent a threedimensional (3-D) device structure with circuit elements. The electrical and thermal characteristics of this circuit representation are calculated with a circuit simulator. Spatial potential distributions, current flows, a...

We study tunnel junctions consisting of a two-dimensional ferroelectric (FE) material sandwiched between graphene electrodes. formulate theory for the interplay FE polarization and induced free charges in such devices, taking into account quantum capacitance effects. predict gate-sensitive voltage difference across device, which can be measured using electrostatic force microscopy. Incorporatin...