Showing 6 results for Heidari
Zahra Barzegar, Shahin Heidari, Mahnaz Zarei,
Volume 22, Issue 2 (December 2012)
Abstract
Nowadays, with the development of the economy, the demand for energy is increasing rapidly while the energy supply is
growing shorter and shorter. Researches indicate that energy consumption in the residential sector counts for the main parts of
the total energy consumption. This paper evaluates the effect of building orientation on exposure to the solar radiation in a NESW
orientated case of urban residence in semi-arid climate. SW envelope, with an annual exposure of 13.52 percent, only
improves the thermal comfort of the house because of its annual climatic radiation trend. For vertical NE surface with
insufficient winter radiation exposure of (0 %) and cool summer radiation exposure of (3.38 %), it could be concluded that the
NE elevation is suitable and in demand in the summer but not in the winter. Total annual horizontal solar radiation exposure
percentage of (83.04%) indicates that huge non- climatic roof radiation is inappropriate and should be omitted. Finally, the
effects of solar radiation envelopes on electricity and natural gas consumption were thoroughly discussed.
Seyed Abbas Yazdanfar, Ali Akbar Heidari, Fatemeh Nekooeimehr,
Volume 23, Issue 2 (12-2013)
Abstract
Today, there are many concepts such as a sense of place and attachment to place presented in architecture and urban literature in the field of environmental studies. Meanwhile, relationship between the two is not much explained. This study defines the concept of sense of place and attachment to place and the factors influencing them followed by providing a four- dimensional model derived from social factors influencing the two concepts as the study theoretical model. This four- dimensional model was tested in case studies of Eram and Ghods dormitories of Shiraz University. In this study, depth interviews and questionnaires were used to collect data for process of testing. Spss software was used to analyze and interpret the survey results. After research questionnaires were completed, the data were analyzed via the software through appropriate statistical methods at descriptive and inferential levels. At descriptive level, relative frequency and cumulative distributions were used. At inferential level, taking into account the nature of the variables, correlation coefficient, regression and comparison of means were used. Finally, the paper presents hypothesis tests and discussion of the results. Given the variable measurement level, Pearson correlation coefficient test was used to support or reject hypotheses. Obtained results show that there is a strong relationship between sense of place and attachment to place. The findings also suggest that physical factors of the environment are important to create a sense of place and time as well as attachment to place. Moreover, time factor has lowest degree of importance in creating a sense of place compared with the creation of sense of attachment to the place. This factor is the most important after physical factors.
M. Maleki, S. M. Mofidi Shemirani, A. Heidari,
Volume 27, Issue 1 (6-2017)
Abstract
Using the results of the assessment of desirability from the viewpoint of employees and the computer analysis of space syntax, the desirability factors of work desk arrangement in office space have been analyzed in the present study. Firstly a pictorial questionnaire was distributed among 113 employees in two offices of Tabriz city to obtain the desirable sitting places in the room (considering the position of the door of room, the angle of the sitting and the position of the desk of colleague). Next, using the space syntax software, the factors which affect the preferences of employees were analyzed. In this regard, indices such as Isovist, integration and distance from the door were studied. The results show the impact of these indices on the preferences of employees. The significance and impact of the indices have not been similar and in some cases, "distance from the door" has had the highest impact and the "isovist" has had more impact than "integration". In relation to the selection of the sitting place, this research has also demonstrated the impact of organizational and cultural factors on the preferences of employees. Such as the difference between the spatial value of various parts of the room in terms of distance from the door and the position of the door in different cultures, the difference between the results obtained from female respondents and the male respondents in relation to the index of "isovist from outside", as well as the difference between the choices of individuals with different occupational ranks.
M. Zarei, M. Sattarzad Fathi, F. Heidari,
Volume 28, Issue 1 (6-2018)
Abstract
The "Urban Village Approach" is one of the most appropriate ways to eliminate recent urban problems, including social,
environmental, cultural, and economic shortcomings. Although the urban village approach is generally proper to resolve these
types of flaws, its combination with the democratic concept of urban design can definitely provide more effective solutions. So
at first, this paper aims to present a theoretical combination of these two approaches in the form of recommended principles
and criteria, and then attempts to introduce a hypothetical wasteland for illustrating the practical aspects of it through design
suggestions. A major part of the achievements of this paper is based on theoretical and empirical findings obtained from
comparisons and descriptions, but in order to achieve more tangible results, the practical aspects of findings are proven by
displaying 3D designs and schemes. Consequently, these proposed principles and criteria can be utilized in designing a
democratized urban village form that finally leads to some vital qualities, such as flexibility, inclusiveness, localism, diversity,
vitality, naturality, identity, etc. These qualities, in an appropriate and consistent relation with the existing contexts, will also
bring some desired concepts within, like justice, equality, freedom, and democracy to the urban and rural areas and
neighborhoods.
P. Heidari, Ç. Polatoglu,
Volume 28, Issue 1 (6-2018)
Abstract
In the architectural design, designers are focused on the early stages of the design process or conceptual design. The ultimate goal of this stage is to find a solution for an existing problem, investigate design space, or explore an idea. This stage conventionally begins with sketches and diagrams to explore ideas and solutions; the ambiguity and vagueness of conventional freehand sketching can be a source of creativity.
Nowadays, with the advances in digital technology, there are attempts to integrate digital tools into the conceptual design in order to construct a digital design medium in the architectural education. Recent developments in CAAD software shows a shift in focus toward conceptual design interface; but these tools have not developed and still fail to offer an appropriate design environment for sketching; So application of digital tools in the early stages of design, has created problems and challenges especially regarding creativity. The problem is that why digital sketching could not yet replace the conventional freehand sketching. Therefore, this research focuses on the early stages of the design process and aims to investigate the current situation of digital sketching and its related discussions and challenges in architectural design education, also, study the current sketching tools in the architectural schools and tendency of instructors and their students to use digital sketching in real world. This research has a qualitative approach and a survey has conducted via an online questionnaire. Findings show that, there are attempts to study and propose interfaces and programs to enhance digital systems or new ways of working with them in order to support creativity and sketching. Also, findings indicate that the professors yet doubt over digital tools, but there is a tendency to use these tools among educators and their students if these tools can meet educational demands.
Bahareh Bannazadeh, Shahin Heidari, Habib Hadianfard,
Volume 32, Issue 1 (1-2022)
Abstract
Due to the climate change impact, personal thermal comfort (PTC) studies in buildings have been highlighted to reconsider previous results. PTC causes thermal adaptation) physical, physiological, and psychological adaptation (that is the process of acclimatization to different conditions. Thermal comfort is affected by environmental, personal, mental, cognitive, and behavioral criteria. This study was conducted to emphasize the effects of psychological components on PTC in order to improve offices indoor environment quality and reduce energy consumption. In this perspective, cognitive flexibility and resilience have been selected to examine PTC and the ability to accept and choose thermal adaptive strategies based on cognitive characteristics. The research question is: do different cognitive flexibility and resilience level lead to different levels of PTC and conscious/unconscious reaction? To answer this question and calculate comfort temperature, field study was carried out in an office building. The study had two steps: questionnaire and on-site measurements. The questionnaire included an assessment of psychological components, personal components, and thermal responses scales. Environmental components were measured using mobile instruments and the nearest weather station data. A study of 108 participants indicated that cognitive flexibility and resilience had a significant correlation with thermal sensation, thermal comfort, and thermal preferences. So, we can have linear and logistic regression models to predict adaptive behavior, thermal comfort, and thermal preferences based on psychological and personal components. Analysis of comfort temperature using the Griffiths method showed indoor temperature should be 23.7°C for the majority of occupants. We can also be sure that at least two degrees change in indoor temperature is needed to shift occupants’ thermal sensation.
