Management of natural resources, accurate and timely data are necessary for operation and conservation of them. 3D visualization of vegetation as implemented in web platform in Way to display and navigate in the virtual environment is dynamic, will facilitate accessing to relevant experts in a simulated forest environment. The study area is the vegetative part of tropical in Oman Sea coast of Sistan and Baluchistan province. Due to the high dispersion of vegetation and the precision required, Using aerial photos provide a useful tool in preparing the database in GIS environment. In this study, spatial data and descriptive information about the degree of congestion, vegetation type and area, in order to visualization in Google Earth (GE) were used. The final results show that visualization of the three-dimensional data extracted from aerial photos with high precision is implemented in GE and adaptation of forest boundaries in aerial photos with their boundaries on GE has a significant accuracy. In addition, sharing of natural resources data in the context of Web will enhance the process of Management and decision-making.

Our country is located on an Earthquake Belt.In order to reduce the damages caused as a result of an earthquake, attempts should be made to reduce the dead load of buildings. This research is therefore aimed to study the methods for reducing the dead loads of building cladding. The primary aim is to study the Iranian traditional methods of construction for building cladding, and secondly researching the new methods, technology and the available material for covering of building's facade with light weight material in developed countries, and selecting the most compatible material and techniques suited with the current methods of Iranian building construction.Finally an attempt is made to suggest means and recommendations for reducing the dead load of building cladding.

To interpret the gravity anomaly of a Koromite mine in south - west of Iran, we have used the three dimensional inversion problems. The method introduced by Last and Kubik (1983) and improved by Lewi (1997) for high precision gravity data has been tested to determine the 3-dimensional form of the anomaly. The results of the inversion process have been approved by exploration drill holes in the area recently.

In this paper, a new pattern was offered for the fabrication of tissue engineering scaffolds by the 3D printing method. A photocurable resin, micro mirror and UV source were employed for the fabrication of scaffolds. Final patterns have a simple form and a gradient form that the mechanical behavior of each model was investigated under mechanical testing. For the investigation of precise mechanical behavior of porous samples, non-porous samples were investigated under mechanical testing and an empirical equation was used for the checking influence of base material properties on the behavior of porous samples. The results indicate that the gradient model, unlike the simple model has multiple elastic regions under the large displacement because of their special design. This behavior is very important for the scaffolds that were implanted in hard tissue and tolerate a high pressure using this type of layering beside the biological advantage of gradient model can improve the efficiency of scaffolds.