Considering basic concepts of preventive preservation and measuring the most important influential indicators in proposing an optimum method for preservation and maintenance of historical and cultural works, this paper tries to present methods for proper preservation of historical-cultural works existing in the Repository of Malek National Museum.The effects of environmental conditions including relative humidity, temperature, light, gas pollutants and solid particles in the environment of the Malek National Museum and also the consequences of these factors such as acidity changes in paper works, and the effect of fungi and proper environmental conditions for the development of microorganisms have been experimentally investigated. The aim of conducting these experiments was to compare the extent of each environmental factor in the environment of the Repository room of the museum with the standards for environmental conditions in the Malek National Museum and to eventually determine the damaging factors in this museum. To do so, all influential environmental factors such as light, relative humidity, temperature, environmental pollutants, and microorganisms were monitored in a specific time range using instrumental analysis methods.

The neoclassical growth model is tested by use of panel Data procedure in this research. In the econometric test, simoultanously time series and cross detection will be compared on the basis of panel Data method through which their observed points increase and consequently the estimation efficiency will be increased. The examination of neoclassical growth theory has been done with reference to external & internal factors of 52 selected countries from 1960 to 2000. The independent variable of model has been selected on the basis of the result of previous research which explains the result in three separate models: developed countries, developing countries, and whole countries. These factors are such as: Gross National Products with lag of period, work force age, growth rate, education level, the change of capital accumulation and economic trade volum. The consequences of this research is that: neoclassical growth model can explain the major part of economic growth of the countries with use of internal variables. Also with the use of panel procedure of fixed effect, we can see the fundamental differences and structure of the growth process for different countries; and show how the economic, and social conditions affect on the growth.

In today's competitive world, information has emerged as one of the important production factors. As a result, the effort to extract information from Data has attracted the attention of many people involved in the information industry and related fields. The large volume of Data is constantly growing in all fields and the vast difference in Data production process has increased the complexity of information management and extraction. Recently, several strategies and techniques have been used to collect, store, organize and efficiently manage existing Data and achieve meaningful results, and Data mining is one of the recent developments in the direction of Data management technologies. The term Data mining refers to the semi-automatic process of analyzing large Databases and Data warehouses in order to find useful and applicabale patterns. In this research, we are going to examine the operationalization process of Data mining and do a practical analysis of this issue. In addition, we will research about the important applications and tools of this field.