The purpose of this paper is concerned with the mathematical model development issues, necessary for a better prediction of dynamic responses of articulated rotor helicopters. The methodology is laid out based on mathematical model development for an articulated rotor helicopters, using the theories of aeroelastisity, finite element and the time domain compressible unsteady aerodynamics. The he...

The invisible inks have many applications, including the use of banknote printing, code load, securitydocuments and much of its application in the exchange of security information. Photoluminescenceproperties of lanthanide compounds that attracted the attention of many scholars in recent decades are one ofthe important factors in drying and fluidity of the ink. The solvent eva...

Certain problems in mathematical computing present unusual challenges in structuring software libraries. Although generics, or templates as they are sometimes called, have been in wide use now for many years, new ways to use them to improve library architecture continue to be discovered. We find mathematical software to be particularly useful in exploring these ideas because the domain is extre...

time-dependent vehicle routing problem is one of the most applicable but least-studied variants of routing and scheduling problems. in this paper, a novel mathematical formulation of time-dependent vehicle routing problems with heterogeneous fleet, hard time widows and multiple depots, is proposed. to deal with the traffic congestions, we also considered that the vehicles are not forced to come...

A 32 factorial design was employed to produce glipizide lipospheres by the emulsification phase separation technique using paraffin wax and stearic acid as retardants. The effect of critical formulation variables, namely levels of paraffin wax (X1) and proportion of stearic acid in the wax (X2) on geometric mean diameter (dg), percent encapsulation efficiency (% EE), release at the end of 12 h ...

It seems that the general applicability of the quantum theory of atoms in molecules (QTAIM) oncharacterizing the bonded interactions is still questionable even afier 30 years since its formulation. Fordemonstrating the generality of bonding schemes in QTA IM, ea( isomers were chosen as the modelsystems and the results from molecular charge density analysis and vibrational normal modes werecompa...

in this paper power system model is represented in a new domain that relates to multi-resolution analysis (mra) space. by developing mathematical model of elements in this space using galerkin method, a new alternative method for power system simulation in nonsinusoidal and periodic conditions is developed. the mathematical formulation and characteristics of new proposed space is expressed. als...

it seems that the general applicability of the quantum theory of atoms in molecules (qtaim) oncharacterizing the bonded interactions is still questionable even afier 30 years since its formulation. fordemonstrating the generality of bonding schemes in qta im, ea( isomers were chosen as the modelsystems and the results from molecular charge density analysis and vibrational normal modes werecompa...

background: every year many organizations formulate a code of ethics (coe) but when it comes to implementing, it does not achieve the desired purposes. ineffectiveness of coes can stem from different factors and surely, one of them is bad formulation. this research was conducted to identify the barriers to effective formulation of coes in one of the main state universities of medical sciences i...

The standard mathematical formulation of quantum mechanics is specified. Bohm s ontological interpretation of quantum mechanics is then shown to be incapable of providing a suitable interpretation of that formulation. It is also shown that Bohm’s interpretation may well be viable for two alternative mathematical formulations of quantum mechanics, meaning that the negative result is a significan...