in present research work, homogeneous anion exchange membranes based on polysulfone (qapsfs) were prepared via chloromethylation, amination and alkalization. in amination step, trimethylamine and n,n,n',n'-tetramethyl-1,6-hexanediamine were used as amination and crosslinking agents, respectively. the chloromethylated polysulfone was characterized by 1hnmr spectroscopy and chloromethylation degr...

shown a doubling of the extravascular lung water but we know that this is a small percentage of the total lung weight; therefore, doubling of the extravascular lung water cannot explain doubling of the dry lung weight. Dr. West: It should be noted that we are not sure that these lungs were indeed stiff and that pulmonary function studies should be made at this point. All that was shown was that...

Water wettability of Si/SiO2 surfaces was controlled by the formation of SAMs terminating in 1-alkyl3-(3-silylpropyl)imidazolium ions and the anion exchange on the surfaces (“direct anion exchange”). The exchange was confirmed by X-ray photoelectron spectroscopy, and the water wettability was measured as a water contact angle by contact angle goniometry. We found that anions played a great role...

An innovative replica exchange (parallel tempering) method called replica exchange with solute tempering (REST) for the efficient sampling of aqueous protein solutions is presented here. The method bypasses the poor scaling with system size of standard replica exchange and thus reduces the number of replicas (parallel processes) that must be used. This reduction is accomplished by deforming the...

Password Authenticated Key Exchange (PAKE) is one of the important topics in cryptography. It aims to address a practical security problem: how to establish secure communication between two parties solely based on a shared password without requiring a Public Key Infrastructure (PKI). After more than a decade of extensive research in this field, there have been several PAKE protocols available. ...

The first ligand-exchange rate measurements of lanthanide ions in an ionic liquid are reported here. The trend of water-exchange rates in the ionic liquid is the opposite of the trend in water.

Reducing the gap between electrodes and diaphragm to zero is an often adopted strategy reduce ohmic drop in alkaline water electrolyzers for hydrogen production. We provide a thorough account of current–voltage relationship such zero-gap configuration over wide range electrolyte concentrations current densities. Included are voltage components that not experimentally quantified like those due b...