هوافضا: مطالعه‌ علم‌سنجی و تحلیل سنجه‌های مرکزیت شبکه هم‌نویسندگی پژوهشگران

هدف: هدف پژوهش حاضر مطالعه‌ علم‌سنجی و ارائه تحلیل سنجه‌های مرکزیت شبکه هم‌نویسندگی پژوهشگران قلمرو هوافضا بر اساس داده‌های موجود در پایگاه «مجموعه هسته وب‏گاه علم» در سطح بین‌الملل است.روش‌شناسی: پژوهش از نوع کاربردی با رویکرد تحلیلی است که به‌منظور دیداری‌سازی شبکه‌ها از فن تحلیل شبکه در سطح خرد و کلان شبکه استفاده شده است. جامعه پژوهش حاضر، شامل کلیه پژوهشگران قلمرو هوافضا (153994 مدرک و 154450 نویسنده) در بازه زمانی 1945 تا 2021 نمایه‌شده در «مجموعه هسته وب‏گاه علم» است که با استفاده از نرم‌افزار datalab واکشی داده انجام شده است.یافته‌ها: چگالی شبکه هم‌نویسندگی پژوهشگران هوافضا پایین و شبکه از انسجام ضعیفی برخوردار است. در پژوهش حاضر 5 خوشه مشارکت با مرکزیت پژوهشگران برجسته در قلمرو هوافضا شناسایی شد. بیشترین مشارکت علمی میان پژوهشگران هوافضا، بین دو پژوهشگر giovanni mengaliو alessandro a. quarta از دانشگاه پیزا کشور ایتالیا دیده شد. بیشتر موضوعات پژوهشی پژوهشگران در گرایش موضوعی آیرودینامیک که از مهم‌ترین پایه‌های هوافضا به‌شمار می‌رود‌ و سپس گرایش‌های «مکانیک پرواز»، «کنترل» و «ارتعاشات» به رشته تحریر درآمده است. بعد از «آمریکا» کشور «چین»، بیشترین توانایی را جهت برقراری ارتباط با سایر کشورها در مشارکت علمی نشان داد.نتیجه‌گیری: تدوین سیاست علمی و پیشبرد طرح‌ها و برنامه‌های راهبردی مطلوب پژوهشی هوافضا، مستلزم داشتن اطلاعات جامع و دقیق درباره توانایی‌های بالقوه علمی و فنی پژوهشگران است. نقش پژوهشگران برجسته هوافضا در ارتباطات و پیوندهای علمی، موجب شکل‌گیری مشارکت‌های قابل ملاحظه‌ای در سطح بین‌الملل در هوافضا شده است. بااین‌وجود ضروری است به‌منظور دستیابی به شبکه‌های مشارکت علمی قدرتمند و منسجم به ارتباطات بالقوه و ممکن در بین پژوهشگران و همچنین مراکز پژوهشی و کشورها و بهره‌مندی از ظرفیت هم‌افزایی آنان توجه بیشتری شود.

aerospace: a scientometrics study and centrality indicators analysis of researchers’ co-authorship network

purpose: the aerospace industry and technology are always considered one of the most important and valuable industries due to their special and unique features and applications. the field of aerospace research is a priority in the grand strategies of science and technology development, and it is essential to focus on it. aerospace researchers and experts play critical roles in advancing aerospace science and industry. they are responsible for conducting scientific and industrial activities as well as research. evaluating the research performance and quality of aerospace researchers at the international level is crucial. the current research aims to study scientometrics and analyze the centrality metrics of the co-authorship network of aerospace researchers at the international level. this will be done using data available on the web of science core collection (woscc).methodology: the research conducted is of an applied nature, employing an analytical approach. in this article, the technique of network analysis has been employed to visualize the network of co-authorship at both the micro and macro levels. this includes analyzing the social network of co-authorship among researchers and their organizations, as well as examining centrality indicators and conducting network analysis of researchers’ research topics. the current research community includes all aerospace researchers, with 153,994 records indexed on the web of science core collection (woscc) from 1945 to 2021. there are 161,156 aerospace researchers, of which 6,706 were anonymous and were excluded from the research population. therefore, 154,450 researchers were included in the study. data lab was used to accurately extract data for aerospace researchers. ravar premap was also used to standardize data and prepare a square matrix for researchers. the symmetric correlation matrix of researchers (au) was obtained using bibexcel and netdraw. then, the required centralities were calculated. co-authorship maps were also created using netdraw. co-authorship network analysis technique was used for data analysis. a 157×157 matrix was considered to identify keywords that appeared with a frequency of 70 or more. this matrix was used to create a network of commonly researched topics among researchers. vosviewer version 1.6.18 was used to visualize co-authorship networks.findings: the density of the co-authorship network among aerospace researchers is low, and the network exhibits low cohesion. in the current research, five clusters of collaboration were identified, with the center consisting of prominent researchers in the field of aerospace. david a. fulghum of the maritime center in america published 863 articles in the field of aerospace between 1983 and 2003. florian menter from ensys germany has the highest number of citations (excluding self-citations) for published articles in the aerospace field. out of 87,778 keywords identified in the web of science core collection (wosc c) in aerospace, 9712 were associated with florian menter. additionally, a map was prepared using 157 keywords that had a frequency of 70 or more. the co-word clusters of the aerospace network consist of seven topic clusters, 157 nodes, 2679 edges, and have a density of 0.11. the first cluster was a hot topic discussed in the aerospace industry, and the most frequently mentioned topic, aircraft, is associated with cluster 3. the most prominent topics are aerodynamics, flight control, and vibrations. the most significant scientific collaboration of aerospace researchers is between giovanni mengali and alessandro a. quarta from the university of pisa, italy. the most scientific advancements in aerospace research have been published in the fields of aerodynamics, flight mechanics, control, and vibrations. after the united states, china had the most scholarly communications with other countries.conclusion: developing science policy and advancing strategic plans and programs for aerospace research require comprehensive and accurate information about researchers’ potential scientific and technical abilities. the involvement of prominent aerospace researchers in communication and scientific collaborations has resulted in the establishment of significant international partnerships in the aerospace industry. in order to effectively participate in robust and cohesive scientific collaboration networks, it is necessary to enhance communication among researchers, research centers, and countries, and leverage their synergistic capabilities. the present research results are utilized in the science, technology, and innovation policies of the aerospace industry. it is also used in the planning and direction of applied research, as well as in the application of research conducted by aerospace scientific associations, universities, research institutes, and aerospace industry organizations. additionally, the results obtained from this research can be used to expand international cooperation among aerospace researchers. another application of the results presented in this article is the optimal utilization of experts and meticulous planning for the establishment and growth of specialized clusters of aerospace researchers. prominent aerospace researchers have facilitated the establishment of scientific collaborations and significant partnerships at the international level. nevertheless, in order to establish stronger and more cohesive scientific collaboration networks, it is essential to prioritize the exploration of potential connections among researchers, research centers, universities, and countries, as well as their synergistic capabilities.