A GLOBAL PHYSICAL MODEL FOR CEPHEIDS

A new model for Physical flow optimization in the global automotive value chain (Case study: SIBA MOTOR Company)

Taking into account the economic capabilities, competitive advantages and environment dynamics, this research presents a new physical flow optimization model by considering payment period, time value of money and exchange rate fluctuations. Considering the actual circumstances of the current case study in the global value chain, a single-objective non-linear mathematical model is presented for ...

investigating the feasibility of a proposed model for geometric design of deployable arch structures

deployable scissor type structures are composed of the so-called scissor-like elements (sles), which are connected to each other at an intermediate point through a pivotal connection and allow them to be folded into a compact bundle for storage or transport. several sles are connected to each other in order to form units with regular polygonal plan views. the sides and radii of the polygons are...

Nonlinear model pulsations for long-period Cepheids II. Magellanic Cloud Cepheids

Nonlinear, radiative models for long–period Cepheids in the Magellanic Clouds were constructed and the theoretical light and velocity curves were compared with observations. We assumed a metal content Z = 0.005, and two mass–luminosity M–L relations: one was obtained from stellar evolution calculation with convective overshooting models, and the other, which gives an even larger L for the same ...

A Three-Coefficient Model with Global Optimization for Heavy End Characterization of Gas Condensate PVT Data

Characterization of heavy end, as plus fraction, is among the most crucial steps in predicting phase behavior of a hydrocarbon fluid system. Proper selection of single carbon number (SCN) distribution function is essential for heavy end characterization. The SCN distribution function is subject to fluid nature. The exponential distribution function has been and is widely applied to gas condensa...

Cepheids: toward a Consensus?