ERC20 token is the most popular type of Ethereum smart contract. The daily transaction volume these tokens exceeds 100 billion dollars, which agitates notions “decentralized banking” and “tokenized economy”. Yet, it a common misconception to assume that decentralization blockchain entails contracts deployed on this blockchain. In practice, developers implement administrating patterns, such as c...

Abstract: The three-phase uncontrollable rectifiers are still widely applied, at present, in kinds of household appliances, because of its low cost, simple structure and excellent applicability. There are no LC filters in some simplified schematics. Sometimes, filter inductors are connected between rectifiers and power grids. For some higher requirements the three-phase passive power factor cor...

We demonstrate the fabrication and characterization of silicon nanowire-based devices in metal-nanowire-metal configuration using direct current dielectrophoresis. The current-voltage characteristics of the devices were found rectifying, and their direction of rectification could be determined by voltage sweep direction due to the asymmetric Joule heating effect that occurred in the electrical ...

Stereo rectification is the determination of two image transformations (or homographies) that map corresponding points on images, projections same point in 3D space, onto horizontal line transformed images. Rectification used to simplify subsequent stereo correspondence problem and speeding up matching process. Rectifying transformations, general, introduce perspective distortion obtained which...

LiNbO3 has been little studied for the piezoelectric energy harvesting applications. Although it is a cheap material without lead and toxic elements, beneficiates of technological maturity in single crystal fabrication optical acoustic In this Letter, we propose to investigate (YXlt)/128°/90° cut as offers transverse coupling k23 = 0.49, which comparable that commonly used PZT ceramics. A flexi...

Herein, we report the design, fabrication, and performance of two wireless energy harvesting devices based on highly flexible graphene macroscopic films (FGMFs). We first demonstrate that benefiting from high conductivity up to 1 × 10 6 S m −1 good resistive stability FGMFs even under extensive bending, FGMFs‐based rectifying circuit (GRC) exhibits flexibility RF‐to‐DC efficiency 53% at 2.1 GHz...

In our earlier paper [BuK] (see also McMullen’s paper [M]), we constructed examples of separated nets in the plane R2 which are not biLipschitz equivalent to the integer lattice Z2. These examples gave a negative answer to a question raised by H. Furstenberg and M. Gromov. Furstenberg asked this question in connection with Kakutani equivalence for R2-actions, [F]. Return times for a section of ...