Tahun Terbit

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In this paper, we propose few numerical algorithms for minimization of unconstrained non-linear functions by using Modified homotopy perturbation method and the another new algorithm based on Modified Adomian decomposition method. Then comparative study among the seven new algorithms and Newton’s algorithm is established by means of examples.

In this paper we introduce a new class G (F) l of sequence of fuzzy numbers. It is a subclass of G(F), the space of all entire sequence of fuzzy numbers. The completeness and some topological properties of G (F) l are discussed. Also it is proved that G (F) l is a Banach space and it has monotone metric. Some matrix transformations involving this space are obtained.

The increasing requirements for the environmental protection have resulted in the search for more effective, inexpensive and ecologically safe solutions. Zeolite is one of the alternatives, which due to their peculiar structure are widely used for various environmental processes. The demand for an easily accessible and inexpensive source of zeolite has raised interest in synthesis of these min…

Optimization is a decision Science which helps managements to take better decisions and refers to finding the values of decision (or free) variables. It is ubiquitous in daily life - people use optimization, often without actually realizing, for simple things such as traveling from one place to another and time management, as well as for major decisions such as finding the best combination of …

The purpose of this study is to review many of the available guidelines for Polymer composite materials. Guide lines for failure mode, laminates orientation, winding angle, water absorption, as they strongly influence the mechanical properties of composite materials. The present review is focused on composite laminates made of glass, carbon, graphite, hybrid and natural fiber composites, since …

On the basis of the general idea about dominant roles of electron configurations of constituting atoms and inter-atomic chemical bonds in the formation of thermal properties of crystals, there is suggested a new theory of the specific heat, in which the heat absorption by the crystalline lattice is associated not with the excitation of phonon waves, but the oscillations of atoms localized in t…

The power industry experiences revolution known as "Power Industry Structure Renewal" mainly due to increasing progresses in science and technology which will result in a gradual change in methods of communication with energy tools. Part of the revolution is the application of small generation units in power generation; units with lower generation volume capacity, and cost compared to the enor…

We develop a continuous linear multistep method using interpolation and collocation of the approximate solution for the solution of first order ordinary differential equation with a constant step-size. The approximate solution is combination of power series and exponential function. The independent solution was then derived by adopting block integrator. The properties of the method was investig…

Physicians are critical, vital and essential among human resources and play an important role in success of information technology adoption in medical practices. The aim of the present study was to assess physicians' use of, knowledge about and attitudes toward computer applications in public and private hospitals. The study was conducted at 45 hospitals, where twenty of them were private (for-…