Reversible Rectifiers: Reversible Half Wave Rectifier Based on 2D InSe/GeSe Heterostructure with Near‐Broken Band Alignment (Adv. Sci. 4/2021)

Colloidal Crystals: Multifunctional Hydrogels with Reversible 3D Ordered Macroporous Structures (Adv. Sci. 5/2015)

A molecular half-wave rectifier.

This paper describes the performance of junctions based on self-assembled monolayers (SAMs) as the functional element of a half-wave rectifier (a simple circuit that converts, or rectifies, an alternating current (AC) signal to a direct current (DC) signal). Junctions with SAMs of 11-(ferrocenyl)-1-undecanethiol or 11-(biferrocenyl)-1-undecanethiol on ultraflat, template-stripped Ag (Ag(TS)) bo...

Reversible 2D 9-7 DWT Based on Non-separable 2D Lifting Structure Compatible with Irreversible DWT

This paper proposes a reversible two dimensional (2D) discrete wavelet transform (DWT) for lossless coding which is compatible with the irreversible 2D 9-7 DWT for lossy coding in the JPEG 2000. Since all the filters and scalings are factorized into a product of lifting steps, and signal values are rounded into integers, the proposed DWT is reversible and applicable to lossless coding of 2D sig...

Minimization of Reversible Wave Cascades

In this paper two algorithms for the synthesis and minimization of a CA (cellular array architecture) are proposed. Starting from a completely specified single-output switching function, our methods produce rectangularly shaped arrays of cells, interconnected in chains, with an effort to minimize the number of the produced chains (cascades). This kind of cellular topology is known throughout th...

Contents: (Adv. Sci. 6/2017)

On-demand, ultra-high precision delivery of molecules and cells is of great importance in the field of controlled release. In article number 1600410, inspired by sea sponges, Lei Yang, Yuekun Lai, and co-workers design and fabricate a biomimetic macroporous ceramic composite sponge which reveals unique precise AND logic release behaviors of molecules and cells in response to dual-gates of moist...