فهرست مطالب mohamad amini

In today's modern world, the linear economy is no longer responsive, and there is a crucial need for a fundamental shift in people's mindset toward properly using raw materials and products. This article explores the 9R framework as a model for implementing the circular economy in the flooring industry. The framework delves into maximizing material value while minimizing waste and environmental degradation. This research aims to identify the role of the circular economy in the flooring industry across various countries. The article also examines successful strategies proposed to achieve the goals and benefits of this approach, presenting the results within the framework of the 9R model. The results of this research indicate that effective steps have been taken in Iran towards the sustainable production of carpets, which serve as the primary flooring in the country. Among the most important of these, we can highlight the growing trend of using raw materials appropriately in producing this product, along with interesting innovations related to its usage transformation. However, for the complete implementation of all principles of the circular economy in Iran, there are significant obstacles, among which one of the most important is the high cost of establishing recycling units. Therefore, the government must encourage large production units capable of operating in the recycling sector by providing supportive packages. In general, within the scope of this research and its results, it is concluded that designing carpets with a long lifespan and recyclability, along with educating customers on the proper use of products and promoting the repair and reuse of second-hand products, can lead to a more flourishing and sustainable economy in this industry.

Iranian gardening is one of the most original methods in Iranian architecture. Iranians' understanding of gardening is rooted in their culture and religious beliefs. The Safavid period is one of the most successful periods in the field of gardening due to various reasons such as the power of this dynasty and the dynamism of its artistic community. The construction and use of the garden is at its peak during this period and becomes a place for court ceremonies. Foreign ambassadors and trade delegations, who traveled to Iran as the Safavid court and Europe grew closer, came to serve the Shah in the gardens of Isfahan. The main purpose of this article is to study the writings and works of these ambassadors and tourists to understand their view of the Iranian garden. In the following, the opinion of contemporary Iranian historians with the Safavid period towards the garden is examined. Finally, the views of these two groups are examined and analyzed based on the data in order to gain an understanding of foreign tourists and Iranian historians from the Iranian garden .A lot of research has been done in the field of Persian garden. This research has studied the Iranian garden in various fields and researched what it is, its concept, body, etc. Although these researches have many strengths, but the lack of research in the field of examining the views and opinions of orientalists and foreign tourists about the Persian garden in the Safavid period, and comparing their views with contemporary Iranian historians with the Safavid period makes this research unique. Therefore, the research method in this research is historical interpretation, which examines the obtained data with an analytical approach. Finally, the results are compared and it becomes clear that European tourists see the Persian garden at the same time simply full of decorations. The use of water and the way trees are plotted are new to them, and contrary to their behavior in the garden, which they consider a step, they have described the behavior of Iranians in the garden as static, and the use of the garden by Iranians is a point of view for tourists. At the same time, Iranian historians in the Safavid period consider the garden as an image of paradise described in religious terms.

The effects of three herbal plant powders (thyme، cinnamon and turmeric) on growth performance and ascites were studied in broilers. Eight hundred one-day-old Arian broiler chicks were randomly allocated into eight treatment groups with four replications and 25 chicks per cage. The experiment lasted for 42 days. Energy and high protein diets were used to increase the speed of growth and inducing ascites in broiler chickens. Experimental treatment groups were: control treatments، consisting of two diets with different nutrient densities (high density and low density) and two base diets were supplemented with herbal powders at a rate of 5 g/Kg of the diet in a factorial arrangement. Feed intake، BW gain and feed conversion ratio of the broilers were measured. Parameters related to ascites (thyroid hormones، hematocrit value، erythrocyte osmotic fragility and right ventricle-to-total ventricle ratio (RV/TV) were measured. Results showed that there were no influences on broilers’ growth performance. On the other hand، hematocrit value، T4، T3/T4 and RV/TV were significantly decreased by using herbal plants compared with the control، but no significant changes were observed on erythrocyte osmotic fragility (EOF) among the treatments. The results of this study suggested that herbal plants have beneficial effects in reducing ascites in broilers.