مقالات رزومه دکتر محسن عباسی هرفته

Iran faces water shortage crisis whilst construction industry consumes huge amount of water. There are not precise data about construction industry water consumption. Accordingly, lack of comparison as well as prioritization between prevalent structural systems and alternatives which probably use less water create problems in planning for less consumption. There are two questions which arise, aiming to decrease water consumption through selecting suitable structural systems for usual buildings (up to 3 stories): first, how much water is used in the usual structural phase in Iran? Next, to achieve  less water consumption in a structural system, the main essay question is stated: What is the ratio of the water used in earthen architecture to the amount used in usual construction system (concrete and steel)? Results show that earthen structures consume 7 to 15 percent less water than the same structure made by concrete and steel; in other words,  employing the earthen structure instead of concrete and steel reduces water consumption at least 2500 liters per each square meter of construction.

Researchers require appropriate resources to conduct researches. In historical studies, data can be extracted only from these resources. Thus, in historical research especially in historical studies on architecture, the importance of these resources is doubled. Notwithstanding the resources of architectural historiography in Iran are very rare, since the architecture is considered as Container of life, it is almost not a resource that does not provide information about architecture. Therefore, this extent of resources makes identifying and organizing them to research in the history of Iranian architecture very rigorous. On the other hand, regarding the research of the history of Iranian architecture, researchers are faced with a wide range of unknown resources related to all aspects of human life, which makes risk of drowning in the ocean of information ahead. Thus, it seems to be necessary to identify and organize the resources of Historical Studies on Iranian Architecture. Recognizing the resources and understanding the dimensions, levels, species, and priorities for referring to them can reduce the time costing on the one hand and increase the validity of the data on the other hand. In this article, it has been tried to provide a clear view of the resources of historical studies of Iranian architecture. Based on the study of the background of the researches, the lack of theory, theoretical framework and conceptual model in this field was obvious and there were no coherent research results to identify the sources and discover the logical and hierarchical relationship between them from inductive strategy and specifically method. Therefore, the method of grounded theory was used to reach purpose of the research by focusing on the academic studies of the last four decades in the field of Iranian architectural studies. The discussion begins with what the resource is and definitions of it. Then, based on the literature on the subject of famous species of historical studies on Iranian architecture resources are introduced and then, based on the extracted codes, the species identified by this research are presented and completed. Depending on the type of expression, the time interval to the subject, the accuracy and the level of superficiality or depth of information and the degree of validity, several categories can be defined as the resource in the field of historical studies on Iranian architecture, which are generally dual. These dualities include; first- and second - hand resources, specialized and general resources, artistic and non-artistic resources, and explicit or implicit resources. In addition, there is a classification of resources in terms of the type of expression, which is also divided into two general categories of written and unwritten. By identifying and classifying these resources based on the mentioned method, a new formulation of the resources under the central concepts was done and finally three basic concepts for the types of the classified resources were introduced including: expression, time and depth of information. These three key concepts of expression, time and depth were identified as the basis for organizing the resources of historical studies on Iranian architecture and seven main types of them were introduced. These three concepts and seven categories include various levels and dimensions of resources and provide a proper tool for researchers to identify, categorize and prioritize in referring to the resources of historical studies on Iranian architecture.

Problem statement: 

Architectural historiography in Iran, like other fields of theoretical foundations of architecture, has not achieved a proper position, and on the other hand, existing historiographical works have been less studied to determine the asset and lack of asset in this field through this achievement and to more clarify the path of Iranian architectural historiography. Therefore, it seems necessary to study the works of architectural historiography. Thus, in the present study, the following questions are addressed: Which attitudes and methods has Arthur Pope used to study Iranian architecture? What are the fields and contexts in which these methods and attitudes have been formed? What has been the result of applying these methods and attitudes for understanding Iranian architecture?

This study was conducted to review the written works by Arthur Pope to identify his attitudes and methods as well as his achievement in using them for understanding Iranian architecture.

For this purpose, grounded theory was used as the research method.

The result showed that Arthur Pope, influenced by the requirements of the time and the needs of Iranian architectural historiography in that period, has used attitudes and methods to understand Iranian architecture through which, he has presented a history of Iranian architecture. Although, it is more focused on the physical aspects of Iranian architecture; but apart from the physical aspects, he has also paid some attention to other aspects of Iranian architecture, such as space and backgrounds of formation. His architectural historiography has more architectural color and sense than other historians of his time. He has also tried further than them to present his view closer to that of an Iranian person. Therefore, he can be considered a historian who has made acceptable efforts in writing a history book about Iranian architecture, taking into account the requirements of his time.

In this research, the effects of spermidin polyamine on induce resistance of tomato to fusarium wilting disease caused by Fusarium oxysporum fsp. Lycopercisi was assayed. For this reason, a designed factorial experimental based on randomized completed block design in greenhouse condition was done. A solution of spermidin at 1 and 0.1 mM concentration was used by the spray on infected and non infected plants at 4 leaf stage. Sampling was performed at two time interval (48 and 72h) after inoculation. The level of several antioxidants enzyme and also expression of some transcription factors as related to pathogenesis (npr1, eds1 and pds genes) were measured by spectophotometery and real time PCR, respectively. The results showed that approximately, the highest enzyme activity was related to infected tomato plants treated with 1mM spermidin after 72h post inoculation with fusarium oxysporum fsp. Lycopercisi. Gene expression analysis showed that all tested genes were affected by spermidin application in infected plants. The highest and lowest expression level was observed for npr1 and pds genes, respectively. Based on these results we suggest that exogenous application of sprmidin with appropriate concentration to plant under stress condition could improve plant growth condition which can be resulted to plant resistance against pathogen attack

Due to increasing population and decreasing energy sources, this research studies the consumption of domestic energy. The purpose of this study is to predict the factors affecting household energy consumption. To do this, we use 3 algorithms, M5Rules, K-nearest neighbor and random forest, available in Weka software. In this study, the feature correlation algorithm is used to select the most important factors affecting energy consumption and their impact. The results show that lights and fixtures, temperature of the living room, outside temperature, temperature outside of Chievres Station, wind speed, humidity in the kitchen and the temperature in the laundry area have the most impact on household energy consumption. Among the methods, random forest algorithm presented the best results.