Search Results/Filters    

Filters

Year

Banks




Expert Group











Full-Text


Author(s): 

رضائیان محسن

Issue Info: 
  • Year: 

    0
  • Volume: 

    18
  • Issue: 

    5
  • Pages: 

    415-416
Measures: 
  • Citations: 

    0
  • Views: 

    953
  • Downloads: 

    0
Keywords: 
Abstract: 

مطالعات هم گروهی (Cohort Studies) اطلاعات گران بهایی را درباره مواجهه با عوامل گوناگون با پیامدهای مرتبط با آنها روشن می نمایند. معمولاً در ابتدای مطالعات هم گروهی، شرکت کنندگان اطلاعات وسیعی با پر کردن پرسش نامه های مختلف در اختیار محققین قرار می دهند. آنها همچنین نمونه های بیولوژیکی نظیر نمونه های خون، ادرار، ناخن و موی خود را ارائه می نمایند. به جهت تعداد زیاد نمونه های بیولوژیکی و هزینه های گزاف برای تجزیه و تحلیل آنها، این نمونه ها در ابتدا مورد آزمایش قرار نگرفته، بلکه برای انجام مطالعات بعدی در مکانی امن نگهداری می شوند. با در اختیار داشتن این نمونه ها، محققین قادر به دو نوع طراحی جدید خواهند بود...

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

View 953

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesDownload 0 مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesCitation 0 مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesRefrence 0
Author(s): 

رضائیان محسن

Issue Info: 
  • Year: 

    0
  • Volume: 

    18
  • Issue: 

    6
  • Pages: 

    513-514
Measures: 
  • Citations: 

    0
  • Views: 

    381
  • Downloads: 

    0
Keywords: 
Abstract: 

مطالعات مورد-همگذری (Case Crossover Studies) به ویژه برای مشخص کردن تأثیر زودگذر مواجهه بر روی رخداد یک بیماری حاد، مناسب است. در این طراحی، به جای آن که یک گروه مجزا برای کنترل انتخاب شود، هر مورد در نقش کنترل خودش ظاهر خواهد شد. برای این منظور، مواجهه فرد در یک دوره زمانی مشخص قبل از وقوع پیامد با مواجهه معمولی آنها مقایسه خواهد شد. این مطالعه خلاقانه می تواند بسیاری از مشکلات مربوط به انتخاب گروه شاهد مناسب در مطالعات مورد-شاهدی را حذف نماید...

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

View 381

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesDownload 0 مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesCitation 0 مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesRefrence 0
Issue Info: 
  • Year: 

    1394
  • Volume: 

    1
Measures: 
  • Views: 

    308
  • Downloads: 

    0
Abstract: 

لطفا برای مشاهده چکیده به متن کامل (PDF) مراجعه فرمایید.

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

View 308

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesDownload 0
Issue Info: 
  • Year: 

    2023
  • Volume: 

    15
  • Issue: 

    2
  • Pages: 

    43-55
Measures: 
  • Citations: 

    0
  • Views: 

    27
  • Downloads: 

    0
Abstract: 

Archaeobotany is one of the interdisciplinary sciences in archaeology. Archaeobotany Studies plant remains in archaeological contexts. Based on plant findings, it discusses topics such as people's livelihood, agriculture, vegetation, climate changes, dating, etc. So, this course can reply to many questions archaeologists face about an ancient site and people. In recent years, archaeologists have paid a lot of attention to this field and tried to use experts in excavations. One of the excavations that has paid a lot of attention to archaeobotany, is Feyzabad site. This site has Islamic periods. During the excavation in 2022 in this site, some ovens were found, as well as some samples from them. In this research, we intend to answer questions such as the functioning of the sampled ovens and the identification of plant remains in the ovens. Finally, by combining the information found, we will shed light on the lives of the people of this period. By doing this research, our information about the life of the people belonging to this area, their livelihood and the common types of plant remains used in this area will increase. Also, micro information about climatic conditions will be obtained. After carrying out the necessary investigations and research, it was found that the ovens found in the trench D8 are related to cooking to the inner part of the royal citadel. Besides the more specialized work that is being done, animal husbandry and agriculture are popular. Some climate changes such as warmer weather and less humidity were also identified

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

View 27

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesDownload 0 مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesCitation 0 مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesRefrence 0
Issue Info: 
  • Year: 

    2022
  • Volume: 

    7
  • Issue: 

    2
  • Pages: 

    79-101
Measures: 
  • Citations: 

    0
  • Views: 

    306
  • Downloads: 

    23
Abstract: 

Purpose: The present research aimed at finding an answer to the question of the process of influence of cyberspace on Iranian Poetry in the future, and the influence of cyberspace on various aspects of poetry such as content, its audience, the poet, the media that published the poem, the process of composing the poem, the rights of the author, and Globalization of the Iranian poetry. Method: The Delphi technique was used to carry out this research. A group of experts comprising professors in the fields of Communication and Literature was selected. The expert’s opinions were collected and analyzed through an in-depth interview, a questionnaire based on the Likert scale, and by the execution of three stages of Delphi rounds. Findings: Accordingly, considering the content, the experts predicted that due to the impact of cyberspace, the quality of the poetry will be reduced and consequently, the language of poetry will become simpler and close to prose and it will only reflect the daily events of life. Regarding the audience, they concluded that the audience’s selection power will be increased, however, we can differentiate between the public and professional audience. With respect to the sender, there will be no phenomenon of multi authors, and regarding the channel, the experts agreed upon Media Convergence besides, the poets’ agency in publishing their own poems will be increased. Conclusion: Experts believe that the spread of communication technologies will make censorship ineffective. This is the only case in which the group believes in the impact of technology on the future of poetry. The group of experts did not reach a consensus regarding the impact of technology on the phenomena such as publication of author’s poems as one’s original work and the Globalization of Iranian poetry, thus, analyzed these items in the framework of the human agency.

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

View 306

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesDownload 23 مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesCitation 0 مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesRefrence 0
Issue Info: 
  • Year: 

    2018
  • Volume: 

    49
  • Issue: 

    1
  • Pages: 

    159-170
Measures: 
  • Citations: 

    0
  • Views: 

    762
  • Downloads: 

    0
Abstract: 

Present research covers the results of a theoretical and experimental investigation on a circular and quadratic flap gate, which installed at the exit of a circular channel. This study would employ an experimental program in a horizontal channel of circular cross section of 200 and 300 mm diameters, equipped with either a circular or quadratic flap gate to explore the basic parameters affecting the Flow discharge estimation of these devices. In this study, of three ways such of the first form Stage-Discharge technique, incomplete self-similarity theory and the second form Stage-Discharge technique have been used for estimating the discharge for circular and quadratic flap gate under free Flow conditions. The research took the advantages the main difficulties during the experiments were the vibration of the gate as well as accurate measurement of gate opening. The use of second form Stage-Discharge technique would overcome such weaknesses. The most accurate of these methods is incomplete self-similarity theory. In this theory, mean absolute relative error for circular flap gate is equal to 3. 34% and for 4. 1% for quadratic flap gate.

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

View 762

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesDownload 0 مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesCitation 0 مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesRefrence 0
Author(s): 

Ghaderzadeh Omid

Issue Info: 
  • Year: 

    2022
  • Volume: 

    13
  • Issue: 

    1
  • Pages: 

    5-42
Measures: 
  • Citations: 

    0
  • Views: 

    124
  • Downloads: 

    9
Abstract: 

Considering the importance of solidarity as a theoretical and political structure and its connection with social harmony, acceptability and political legitimacy, the present research has conceptualized and formulated the problem of solidarity in the context of Iran's multi-ethnic society through the mediation of existing Studies. . In the current research, the hybrid method has been used. The sample and statistical population of the research includes selected qualitative Studies that have investigated the issue of solidarity and its dimensions in Iran from different aspects and perspectives in the period from 1372 to 1398. After searching in different databases, 500 related articles, books and research reports were identified and finally 54 sources were selected to perform the meta-combination method. Based on the synthesis of Studies, solidarity in the multi-ethnic society of Iran has found a problematic situation. The results of the research confirm that the coordinates of solidarity in Iranian society are based on structural contexts and conditions. The main field in which the issue of solidarity in Iran should be established is the acceptance of a reality called "reliability and stability of cultural diversity". Based on the meta-combination of Studies, the coordinates of solidarity in Iran's multi-ethnic society, due to "intercultural affinities", "disruption and non-inclusion in ethnic policies", "instability and imbalance of development", "inefficiency of ethnic political management" and "identification disorder". In the meantime, "cultural globalization", "taking role models from ethnic elites", "geopolitics of ethnic areas and transnational interventions" and "ethnic extension" are considered as intervening conditions. Despite the fact that ethnic and religious diversity is recognized as a central sign in the constitution, with this definition, political agents have sometimes resorted to strategies that social suffering and extroversion has formed in ethnic communities.

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

View 124

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesDownload 9 مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesCitation 0 مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesRefrence 0
Issue Info: 
  • Year: 

    2022
  • Volume: 

    7
  • Issue: 

    2
  • Pages: 

    1-22
Measures: 
  • Citations: 

    0
  • Views: 

    158
  • Downloads: 

    15
Abstract: 

Purpose: Clustering and co-word analysis is a method to reveal relationships and links and illustrate the intellectual structure of a scientific field. This research tries to study the intellectual structure of articles in the field of futures Studies in Iran by using the technique of co-word analysis. Method: The current research is a descriptive-analytical development with a scientometric approach. The statistical population is 921 articles retrieved records in the field of futures Studies. Findings: The findings showed that articles in the field of futures Studies in Iran are often associated with positive growth, and in terms of frequency, the keywords scenario, Islamic Republic, and foresight are the most frequent in futures Studies. The findings related to the hierarchical clustering led to the formation of 8 clusters in this field, namely "ICT visions", "geographers who love the future", "knowledge development", " Futuristic higher education", "Future of Religion", "Regional Relations", "Strategic Foresight" and "Heavy Weight of Method". Conclusion: According to the findings of the current research and the high frequency of the keyword scenario, as well as the density and relationships of this keyword with other keywords, it can be concluded that the scenario is the dominant approach in futures Studies. Also, according to the resulting clusters, it was observed that these researches have a high variety, but addressing the future in many areas is still neglected.

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

View 158

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesDownload 15 مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesCitation 0 مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesRefrence 0
Issue Info: 
  • Year: 

    2017
  • Volume: 

    10
  • Issue: 

    6
  • Pages: 

    1501-1507
Measures: 
  • Citations: 

    0
  • Views: 

    190
  • Downloads: 

    195
Abstract: 

This paper presents the application of computational fluid dynamics technique in civil and underground industries to evaluate fluid behaviour in a Marsh funnel. The numerical approach, based on computational fluid dynamics, simulated an incompressible two-phase Newtonian Flow by means of the Volume-of-Fluid method. A complementary analytical proposed which provided a quick, field-ready method to assess the fluid field in the Marsh funnel. A supplemental experimental effort evaluated the results obtained from both the analytical calculation and numerical simulation. Results showed that the application of computational fluid dynamics technique gives the desired results in studying fluid Flows in civil and underground industries. Proposed analytical solution is also capable of accurately predicting the fluid Flow and thus can complement the experimental and numerical approaches. Further, the proposed analytical approach can be an alternative method for faster evaluation of fluid, although it needs to be calibrated with either the numerical or the experimental Studies.

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

View 190

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesDownload 195 مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesCitation 0 مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesRefrence 0
Author(s): 

SINGH I. | ABOUL-ENEINB H.Y.

Issue Info: 
  • Year: 

    2006
  • Volume: 

    3
  • Issue: 

    3
  • Pages: 

    220-222
Measures: 
  • Citations: 

    0
  • Views: 

    441
  • Downloads: 

    282
Abstract: 

The basic characteristics of the Flow-through cell apparatus (USP Apparatus IV) including the assembly and open/closed configuration of the apparatus have been described. The relative advantages of the Flow-through cell apparatus over other release setups have been summarized. Finally, potential applications of this setup are presented.      

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

View 441

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesDownload 282 مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesCitation 0 مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesRefrence 0
litScript
telegram sharing button
whatsapp sharing button
linkedin sharing button
twitter sharing button
email sharing button
email sharing button
email sharing button
sharethis sharing button