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Issue Info: 
  • Year: 

    2023
  • Volume: 

    2
  • Issue: 

    71
  • Pages: 

    39-49
Measures: 
  • Citations: 

    0
  • Views: 

    81
  • Downloads: 

    0
Abstract: 

The purpose of the present study was to investigate the effect of generative learning teaching based to PATTERN cognitive LOAD on the memorization math of 7th grade students of in the academic year of 2021- 2022. The research method is quasi-experimental with pre-test and post-test with four groups: two control group and two experimental groups. The statistical population of the study consisted of all 7th grade male and female students of District 2 of Mashhad city that 112 person sample was selected by single stage cluster sampling method. The subjects in the experimental group involved in generative learning based to cognitive LOAD in 16 sessions and the control group did not receive any interventions. The research instrument consisted of a 20-questions researcher-made test. To analyze the obtained data, Multivariate analysis of covariance and SPSS version 24 software were used. The results showed that generative learning teaching based to approach cognitive LOAD have a positive and significant effect on 7th grade students' memorization math. Based on the findings, it can be concluded that one of the effective training on math memorization students is the use of generative learning on the based LOAD cognitive PATTERN.

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Issue Info: 
  • Year: 

    2022
  • Volume: 

    54
  • Issue: 

    8
  • Pages: 

    3197-3214
Measures: 
  • Citations: 

    0
  • Views: 

    62
  • Downloads: 

    10
Abstract: 

linear static analysis is one of the most widely used methods proposed by the codes for the seismic analysis of structures. Several methods have been presented for determining the static lateral LOAD PATTERN. In spite of the simplicity of these procedures, their accuracy, especially for structures in which the influences of higher modes are significant, is not desirable. In this study, a new method is developed to improve the lateral LOAD PATTERN in linear static analysis. To achieve the proposed lateral LOAD distribution, firstly, the average responses of some structures subjected to some earthquakes are acquired. Then, regarding the dynamic responses of the structures, the static lateral LOAD PATTERN compatible with the average responses is developed. Eventually, to derive a straightforward and hands-on lateral LOAD distribution, using a statistical study, some relations coupled with a graph are developed. Since the proposed method is developed based on the structural responses resulting from linear dynamic analysis (time-history analysis), it is shown that the suggested way, despite its simplicity and efficiency, presents appropriate accuracy in predicting the responses of the structures subjected to seismic excitations. The developed lateral LOAD is applied for three frames with 5, 10 and 14 stories. The inter-story drifts of these frames are achieved under 14 earthquake excitations. After that, the proposed lateral LOADs of code 2800 and FEMA 356 are used on these frames and the responses are derived. The outcomes show that whereas the average error of the proposed lateral LOAD for these frames is around 7, 5 and 7%, the average errors of code 2800 and FEMA 356 are almost 20, 10 and 25%. Comparing the inter-story drifts for the developed lateral LOAD PATTERN with the dynamic results, validates its performance. The developed method is evaluated for a set of structures with different fundamental periods. Results show that the method gives higher accuracy in comparison with the static method of Iranian standard 2800 and FEMA 356. Also, the developed procedure can be considered as an appropriate technique for determining lateral LOAD distribution in seismic codes.

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Author(s): 

Sheikhahmadi Kazhal | Yamani Doozi Sorkhabi Mohammad | Pardakhti Mohammad Hassan | Ferasatkhah Maghsoud

Issue Info: 
  • Year: 

    2024
  • Volume: 

    6
  • Issue: 

    1
  • Pages: 

    60-68
Measures: 
  • Citations: 

    0
  • Views: 

    52
  • Downloads: 

    0
Abstract: 

Introduction: Academic faculty members need to emphasize ethical principles in order to improve higher education, with the understanding of this importance, the current research was conducted with the aim of designing the ethical model of academic faculty members in Iran's higher education. Material & Methods: This research is a type of qualitative study that uses foundational data theory. The participants, including experts and faculty members of the country's public universities, who were responsible for the promotion of academic members, were selected as key informants through a targeted sampling method of 45 people. Data were collected through semi-structured interviews. The reliability and validity of the data were obtained from the two methods of reviewing the participants and recoding by experts. Data were analyzed by open, central and selective coding. Results: The results showed that the moral model of faculty members in Iran's higher education is explained in 10 main categories and 27 subcategories. Major and core categories in the form of 6 dimensions of causal conditions including (individual factors, organizational factors), core (cultural-educational, educational ethics, research ethics, scientific-executive), background conditions (higher education policies, moral activism), intervening conditions (environmental factors), strategies (micro level-university, macro level-higher education) and consequences (individual and organizational) were elevated to a higher abstract level and finally the research paradigm model was presented. Conclusion: The regulations for the promotion of academic staff members in Iran require a detailed revision of the content with an ethical and qualitative approach in order to make the indicators of the promotion regulations efficient and effective.

Yearly Impact: مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Issue Info: 
  • Year: 

    1393
  • Volume: 

    29
Measures: 
  • Views: 

    321
  • Downloads: 

    0
Abstract: 

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Yearly Impact:   مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Issue Info: 
  • Year: 

    1998
  • Volume: 

    29
  • Issue: 

    1
  • Pages: 

    13-21
Measures: 
  • Citations: 

    1
  • Views: 

    78
  • Downloads: 

    0
Keywords: 
Abstract: 

Yearly Impact: مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Issue Info: 
  • Year: 

    2005
  • Volume: 

    17
  • Issue: 

    1 (53)
  • Pages: 

    66-74
Measures: 
  • Citations: 

    1
  • Views: 

    1097
  • Downloads: 

    0
Abstract: 

Background and Aim: It is believed that a period of healing, approximately 3-4 months for mandible and 4-6 months for maxilla, are required to ensure osseointegration. Recently, a new method called Immediate LOADing of implants have been proposed. This method provides improved stability of the implant by the immediate support of an iterim prosthesis. The aim of this study was to evaluate the success rate of the Immediate LOADing single OPILS dental implants.Materials and Methods: Thirty-nine patients, including 26 females and 13 males, at the minimum age of 18 and maximum age of 54 years old, received 48 OPILS dental implants. In this prospective study, all samples were non-smoking, without any systemic disease or psychological problem. In all cases, and acrylic prefabricated crown was placed immediately after implant surgery. The definitive metal-ceramic crown was placed 2.5 months later in mandible and 5.5 months later in maxillae. Lack of pain, pus, implant immobility and less than 1mm bone loss were criteria of success.Results: The oral hygiene of females were better than males, 26 women had plaque index (0) and 11 of them had plaque index (1) where as out of 13 male subjects, 4 had plaque index (0), 6 had plaque index (2) and (3) had plaque index (3). The mean vertical bone loss, on mesial and distal parts, were less than 1mm, with the min. of 0 and max. of 0.4mm and the average of 0.2mm. All implants pass the defined criteria of success.Conclusion: On the basis of this short-term study, in single tooth cases, OPILS implants of Neo-Dent system can be LOADed immediately.

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Author(s): 

SHAHROUZI M. | RAHEMI A.A.

Issue Info: 
  • Year: 

    2014
  • Volume: 

    12
  • Issue: 

    1 (TRANSACTION A: CIVIL ENGINEERING)
  • Pages: 

    256-267
Measures: 
  • Citations: 

    0
  • Views: 

    308
  • Downloads: 

    229
Abstract: 

Well-known seismic design codes have offered an alternative equivalent static procedure for practical purposes instead of verifying design trials with complicated step-y-step dynamic analyses. Such a PATTERN of base-shear distribution over the building height will enforce its special stiffness and strength distribution which is not necessarily best suited for seismic design. The present study, utilizes a hybrid optimization procedure to seek for the best stiffness distribution in moment resistant building frames. Both continuous LOADing PATTERN and discrete sizing variables are treated as optimization design variables. The continuous part is sampled by Harmony Search algorithm while a variant of Ant Colony Optimization is utilized for the discrete part. Further search intensification is provided by Branch and Bound technique. In order to verify the design candidates, static, modal and time-history analyses are applied regarding the code-specific design spectra. Treating a number of building moment-frame examples, such a hyper optimization resulted in new lateral LOADing PATTERNs different from that used in common code practice. It was verified that designing the moment frames due to the proposed LOADing PATTERN can result in more uniform storey drifts. In addition, locations of the first failure of columns were transmitted to the upper/less-critical stories of the frame. This achievement is important to avoid progressive collapse under earthquake excitation.

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Issue Info: 
  • Year: 

    2022
  • Volume: 

    54
  • Issue: 

    2
  • Pages: 

    793-808
Measures: 
  • Citations: 

    0
  • Views: 

    52
  • Downloads: 

    8
Abstract: 

In engineering designs, structural analysis is generally performed assuming a rigid base. While introducing the effect of structural substrate flexibility on the response and dynamic properties of structures is important. Introducing different solutions to reduce the response of the structure against dynamic forces is another important issue in engineering designs. In this paper, the passive Pall friction damper system has been used for this purpose. In the researches that have been done so far, various optimization methods have been used for the optimal design of friction dampers, but in most of these methods, the effect of soil-structure interaction has not been considered for friction dampers, while in earthquake soil-structure interactions are important. One of the main objectives of this study is to investigate the effect of soil-structure interaction on the optimization of friction dampers. The actual forces and displacements of a structure due to free-surface seismic movements can be determined by considering the effects of soil-structure interaction. In this regard, in this paper, two-dimensional frames of 4, 8, and 12 floors equipped with dampers were analyzed in nonlinear structural analysis software under seven accelerometers using the nonlinear time history method once, considering the effect of soil-structure interaction and introducing 3 Different lateral LOADing PATTERNs and again without this effect. The results show that considering this issue in terms of cumulative triangular slip LOAD PATTERN has increased the loss of earthquake input energy. Also, depending on the type of LOAD PATTERN, the applied record and the height of the structure, a decrease has been observed, which is mentioned in the results section.

Yearly Impact: مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Issue Info: 
  • Year: 

    2008
  • Volume: 

    5
  • Issue: 

    4
  • Pages: 

    255-260
Measures: 
  • Citations: 

    1
  • Views: 

    803
  • Downloads: 

    0
Abstract: 

Evaluation of long-term home electrical appliance efficiency improvement scenarios on LOAD and energy PATTERN needs comprehensive and precise modeling taking to account a variety of uncertainties. In the modeling process, all effective parameters should be considered. Estimation is the main source of information in this process which is a long-term large scale impact assessment procedure. Furthermore, the non homogeneous structure of LOAD behavior in response to DSM policies makes the problem more sophisticated. The presented method implies fuzzy numbers to model the main uncertainties of the demand side reactions to the proposed DSM program. Here, the social classes of customers and their behaviors regarding energy utilization as well as time dependency of the problem parameters are taken into account. The paper focuses on the efficiency improvement of the electric appliances in Iran as a long-term DSM program, due to their considerable share in electricity consumption in residential sector. Finally, the numerical results are presented.

Yearly Impact: مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Issue Info: 
  • Year: 

    2016
  • Volume: 

    35
  • Issue: 

    153
  • Pages: 

    47-56
Measures: 
  • Citations: 

    0
  • Views: 

    1636
  • Downloads: 

    0
Abstract: 

Nowadays the architecture of Iran is disordered and disorganized. The attempt to eliminate and prevent the existing crisis and disorder in this era is one of the most important concerns for the contemporary architects. One of the main reasons to this problem is the lack of right and suitable PATTERNs in today’s architecture. A PATTERN for spatial syntax of architecture is the result of successive years of experience by architects with the hope of improving and optimizing primary plans. One can assume that this is the result of changes in form and body of architecture which could transform it into a stable PATTERN and geometry through time and trial.The study of the ancient architecture in Iran indicates that one of the important and permanent PATTERNs is the Cross vault or Crucifix PATTERN which has changed considerably through time and has developed into a time-honored PATTERN. The PATTERN is a square or a rectangle building with internal divisions that result in a cross-like plan in the middle and has several intersecting arches or vaults. In the eighth century the cross PATTERN was developed. The best examples of houses with cross PATTERNs are found in the central cities of Iran. The PATTERN is one of the dominant configurations in Iranian architecture, especially in desert areas in Yazd which have changed dramatically through history. These PATTERNs are the results of the historical mind. As one of the permanent PATTERNs in Iranian architecture it carries different practical, functional, climate and environmental considerations. The study of cross PATTERN in the traditional houses in Yazd shows that this PATTERN is one of the important PATTERNs in traditional houses of Yazd, especially in the summer's living quarters. Therefore, an enquiry into the qualities of this PATTERN which has made it permanent in the history of architecture seems relevant. This article discusses the climate qualities of this PATTERN by choosing statistical samples from these houses and checking the thermal behavior in these spaces in the summer's living quarters to determine the effects of this special PATTERN on the cooling LOAD in these spaces. By analyzing these spaces the research reveals the fact that the cross PATTERNs performs better than the rectangle PATTERN in several aspects including indoor climate adjustment and functional requirements of the summer quarters.

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