The purpose of this study in the first phase was to determine the relationships between the characteristics of the articles published by the Iranian top one percent researchers in 2020 (journal Impact Factor, and author impacts; paper, abstract, and title lengths; author affiliations, number of references, author-supplied keywords, and number of countries; access type, and funding) with the citation counts, readership counts, and altmetric attention score (AAS), which were respectively extracted from Web of Science (WoS), Mendeley and Altmetic.com. The research aim in the second phase was to demonstrate their presence in the international patents, Iranian research outputs indexed in WoS, the curriculum of their fields, profiling services, and their academic inbreeding status and collaborations patterns. The method of this applied study was descriptive in terms of purpose and scientometric in terms of approach, which was conducted based on citation analysis, altmetric and bibliometric techniques. The statistical population of the research was 12 Iranian top one percent researchers from the top one percent researchers listed on Clarivate Analytics in 2020. The findings demonstrated that the characteristics of the articles, including the number of affiliations, authors' h-index, journal impact factor, authors and references counts, and title and abstract length, have been correlated positively with their citations, AAS, and readership. In addition, articles published by authors with a higher h-index had a greater AAS and readership, and articles with longer titles had a lower AAS. However, no statistically significant correlation was found between the citation counts and the AAS with the author keywords counts, and paper lengths, also between the AAS with the countries count. The access type variable did not affect the number of citations, but non-open-access articles received higher AAS and readership than open-access articles. In addition, funded articles obtained less citations, AAS, and readership than non-funded articles. There was no relationship between academic inbreeding of Iranian top one percent researchers with their citations and AAS. However, there was a weak correlation between the average number of citations and AAS of the Iranian top one percent researchers. Eventually, these researchers did not have a high national impact based on the indicators of presence in the references of Iranian papers indexed in WoS and references/resources of the curriculum of their field. Just 1.5 percent of publications of these researchers' were cited in patents, and many of them were contributed by Omid Akhavan and Nosratullah Dabir Vaziri.

In this paper, simulation-based (software-based) teaching of a 4-channel optical demultiplexer based on photonic crystal is presented by using the R-Soft software. The teaching of the demultiplexer structure is based on the use of a photonic crystal filter. In this analysis, with the variation of the radius of the cylindrical nano-ring resonator and the radius of the scattering rods, the critical length parameter of 1573. 6 nm is improved in the design of the filter. The advantages of the 4-channel demultiplexer include the mean quality factor of 4525, mean channel power transfer factor of 95%, and maximum and minimum channel cross-talk of-19. 6 and-40. 4, respectively. Also, mean channel width is obtained as 0. 375 nm. Moreover, the proposed 4-channel demultiplexer can be used in WDM systems. The simulation-based teaching of these structures is very important to develop and improve the multiplexers performance. Therefore, the related syllabus is suggested for master of science (MSc) students in Electronic Engineering major. This syllabus can be considered as a part of Photonic Crystal or Photonics courses.

Background and Objective: The aim of this study was to survey, identify training needs, Tehran Municipality staff about environmental issues and the educational model which is based on the DACUM model. Method: For this purpose, the population of 1331 people formed the staff of Tehran Municipality 2. Studied a random sample of 310 participants were identified. Tools for data collection questionnaire which its validity confirmed and its reliability was confirmed by calculating Cronbach's alpha coefficient above 0. 7 calculated. Data were analyzed using MATLAB software. Findings: Environment is one of the most vulnerable aspects that have always been threatened. Protection of the environment is a national duty. In a way that should be the responsibility of individual and society to preserve it, and the municipality as one of the custodians plays a vital role in this regard. Discussion and Conclusion: The results showed there are significant differences between different levels of educated staff which means staffs with higher education diploma need higher level of training compare to the two other groups with underground and postgraduate degrees.

Studying mathematical literacy of students in grade 9 is the purpose of this descriptive-survey research. The random sample was 266 students from Najaf Abad. In this paper a researcher made test is used as measuring tools. This tool contains 8 problems with 14 questions that its formal and content validity are confirmed by expert in mathematical education and mathematical teachers. In this paper, Student mathematical literacy is assessed in content categories, context categories and student's function in solving problem. After analyzing data, Cronbach's Alpha (0. 73) showed the test stability was suitable. According to the results of this research students don't have desirable performance in ML assessment. These findings show a deep gap between student's mathematics world and real-world in all content and context category and mathematical processes. We hope the results of this paper make changes in educational resources, teaching methods and teacher training to raise student's mathematic literacy.