Herd behaviour in financial markets is a recurring phenomenon that exacerbates asset price volatility, and is considered a possible contributor to market fragility. While numerous studies investigate herd behaviour in financial markets, it is often considered without reference to the pricing of financial instruments or other market dynamics. Here, a trader interaction model based upon informati...

Loosely coupled multi-agent systems are perceived as easier to plan for because they require less coordination between agent sub-plans. In this paper we set out to formalize this intuition. We establish an upper bound on the complexity of multi-agent planning problems that depends exponentially on two parameters quantifying the level of agents’ coupling, and on these parameters only. The first ...

Several types of hybrid catalysts are made through mixing of 4th generation Ziegler-Natta (ZN) and (2-PhInd)2ZrCl2  metallocene catalysts using triethylaluminum (TEA) as coupling agent. Response surface methodology (RSM) is used to evaluate the interactive effects of different parameters including amounts of metallocene and TEA and temperature on metallocene loading. Analyzing the amounts of Al...

The selective monoalkylation at the smaller (lower) rim of the p-tert-butylcalix[4]- and -[6]arenes using bis(butyltin)oxide and different alkylating agents is described. The procedure is remarkable for the mild conditions used allowing an efficiently access to monoalkylated calixarene derivatives in moderate to good yields. Monoalkynylcalix[4]arene and monoalkynylcalix[6]arene have been synthe...

A simple method for the synthesis of new bio-based silane coupling agents (SCAs) with a terpene aromatic core by functionalization cheap, natural eugenol and its sulfur derivatives using hydrosilylation C=C bonds HSi(OEt)3, followed nucleophilic substitution reactions OH/SH groups is presented. The obtained alkoxysilanes possess different polymer-reactive functionalities (alkenyl, epoxide, thii...

As a novel functional nanomaterial, Fe3O4 magnetic nanoparticles (MNPs) modified by different surfactants have attracted and are attracting worldwide interest. In this research, we introduced two silane coupling agents to modify MNPs instead of single surfactant achieve complete coating functionalization. The modification mechanism was also explained. Techniques such as TEM, XRD, FT-IR, TG-DSC,...

Using natural fibers in composites presents a wide range of applications, from furniture to airplanes. In polymeric composite, the use fiber is boost strength and stiffness. However, this material low mechanical properties compared virgin polymers due hydrophilic nature hydrophobic polymer. It can result weak bonding matrix/fiber which may cause incompatibility problem with most polymer matrice...