The ideas fundamental to the design of cation complexing host molecules can also be applied in the construction of molecular hosts for anions. Following the basic concept the macrotricyclic ammonium hosts la and j& were prepared. They were shown to bind anions by encapsulation into their molecular cavities in aqueous solution. This inclusion process causes guest discrimination according to inte...

Using liquid membrane and, in particular, supported liquid membrane (SLM) is a novel method of separation in comparison to other methods such as adsorption, extraction and ion exchange. SLM is a combination of simultaneous extraction and disposal whose high efciency and capability is proven by many studies. So far, many researchers have utilized SLM in various scientifc...

Frequency selectivity of a novel type of multielement, multisection laterally coupled semiconductor laser array is studied using the round-trip method. It is found that such a structure should lead to a strong frequency selectivity owing to a periodic dependency of the threshold gain on the frequency. A gain-guided two-coupledcavity device was fabricated. The experimental results show excellent...

Polymeric ion-exchange membranes have come a long way since their invention, benefiting wide range of processes, ranging from desalination to fuel cells. However, challenges such as alkaline stability, monovalent ion selectivity, cost-effectivity, and process sustainability largely persist. This work showcases stable anion-exchange made by hot-pressing polyelectrolyte complex poly(styrenesulfon...

Ion selectivity of transport systems is an essential property of membranes from living organisms. These entities are used to regulate multifarious biological processes by virtue of selective participation of specific ions in transport processes. To understand this process, we studied the phosphate selectivity of the OprP porin from Pseudomonas aeruginosa using all-atom free-energy molecular dyn...

Log-linear models and more recently neural network used for supervised relation extraction requires substantial amounts of training data time, limiting the portability to new relations domains. To this end, we propose a representation based on dependency paths between entities in tree which call lexicalized (LDPs). We show that is fast, efficient transparent. further representations utilizing e...