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Article
Publication date: 17 March 2020

Shima Moradi and Firoozeh Dokhani

Altmetrics is a complementary method in scientometrics for evaluating the performance of individuals, organizations, institutions and countries in social media. Due to the…

Abstract

Purpose

Altmetrics is a complementary method in scientometrics for evaluating the performance of individuals, organizations, institutions and countries in social media. Due to the large volume of data related to the interactions in science, technology and innovation, there is no choice but to develop and implement accurate models for analysis and decision making. The Quadruple Helix Model examines the scientific outcomes in four spaces of innovation, knowledge, consensus and government with a distinctive attention to the “innovation space”. In other words, it aims to find the connection between the academic space and other sectors of a society (public, media and government) to see if scientific outputs respond appropriately to their needs.

Design/methodology/approach

The present paper studied the impact of health-related researches in D8 countries) including Iran, Turkey, Pakistan, Bangladesh, Indonesia, Malaysia, Egypt and Nigeria) using the Altmetrics scores of their indexed journal in the Web of Science (WOS). The results demonstrated distribution of interactions of the mentioned four spaces in health science researches in terms of social media, geographical distribution and theme for D8 countries. This was conducted using content analysis, scientometric and altmetric indicators in the WOS and Altmetrics.com databases.

Findings

In D8 countries, more interaction has taken place in the knowledge and innovation spaces; however, there exist Quadruple imbalances in these countries. Moreover, some interactions have been observed in all social networks, displaying that users consider health topics in D8 countries, and clinical sciences has gotten more interaction in all the four spaces.

Originality/value

The application of this model using altmetrics data with current approach has been conducted for the first time.

Details

Library Hi Tech, vol. 38 no. 4
Type: Research Article
ISSN: 0737-8831

Keywords

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Article
Publication date: 26 June 2019

Shima Moradi

The purpose of this paper is to analyze the research trends in smart cities (SCs) in order to demonstrate the most and the least active fields, researchers, institutions…

Abstract

Purpose

The purpose of this paper is to analyze the research trends in smart cities (SCs) in order to demonstrate the most and the least active fields, researchers, institutions, frontier active centers/authors and funding institutions, as well as drawing the map of the most active countries in this scope.

Design/methodology/approach

Bibliometric data of 4,696 scientific works were collected from Web of Science, one of the most authentic bibliometric databases, within 1970–2018. The data were analyzed using scientometrics and content analysis methods and visualized by tables, charts and atlases.

Findings

The results showed an increasing trend in these studies mostly published as conference papers during 48 years. In this period, 0.6 percent of the papers got more than ten citations. Highly cited fields in the area of SCs were orderly smart IT infrastructure, smart government, smart environment, smart mobility, smart energy, smart economy and smart citizen. The geographic atlas of SC studies showed that the frontier countries in SCs were China, Spain and Italy, orderly. China’s main focus was on smart infrastructure while Spain’s focus was smart citizens and smart energy. Italy’s studies were mostly concentrated on smart government, smart mobility and smart environment. In general, it can be concluded that “smart IT infrastructure” was the most noted among the other components of SCs.

Originality/value

The scientometrics of SC literature has been conducted for the first time.

Details

Library Hi Tech, vol. 38 no. 2
Type: Research Article
ISSN: 0737-8831

Keywords

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Article
Publication date: 13 November 2017

Shima Moradi, Delbar Tayefeh Bagher and Zohreh Mirhosseini

This study aims to investigate the application of Web 2.0 technologies in the libraries of the top 100 universities in the world to provide a model for Web 2.0 application…

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Abstract

Purpose

This study aims to investigate the application of Web 2.0 technologies in the libraries of the top 100 universities in the world to provide a model for Web 2.0 application in academic library websites.

Design/methodology/approach

Data were collected from the universities’ library websites for three months based on a Web 2.0 checklist. The list of universities was extracted from Webometrics Ranking of World Universities in 2015.

Findings

The research shows the priorities of these universities in their use of Web 2.0 tools include social networks and mashups at the most (94.5 per cent), followed by RSS (91.2 per cent) and social tagging (82.4 per cent) and other tools with lower priorities. Moreover, it revealed the most common applications of these tools in the mentioned websites followed by their objective evidences in different libraries. The results indicate that the total Web 2.0 application in the libraries of the top 100 universities was below average (40.23 per cent). Finally, the model for Web 2.0 application in academic library websites was designed.

Originality/value

The focus of this study is on the value and application of each tool in the websites and demonstrate a clear model to apply in other library websites. The model for Web 2.0 technologies application in academic library websites has not been designed and pictured before.

Details

Information and Learning Science, vol. 118 no. 11/12
Type: Research Article
ISSN: 2398-5348

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Article
Publication date: 18 May 2018

Maryam Pakdaman Naeini, Hadi Sharif Moghaddam, Soraya Ziaei and Amir Ghaebi

As many organizations and institutions in recent years are trying to update their hardware and software platforms toward using mobile technology, libraries and information…

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2435

Abstract

Purpose

As many organizations and institutions in recent years are trying to update their hardware and software platforms toward using mobile technology, libraries and information centers as trustees and leaders of information management and information science need to be futurists in this area. Therefore, the purpose of this paper is to investigate the status of using mobile-based services in the world’s top university libraries.

Design/methodology/approach

In this direct observation and quantitative research survey, the authors reviewed the status of using mobile-based services in the libraries of the world’s top universities.

Findings

The results showed that 84 percent of the libraries of the top 50 universities in the world have made their websites mobile-friendly and provide mobile-based services; however, only 30 percent of them have designed mobile library application. The findings of this study revealed that mobile phone services such as “Search catalog,” “Hour of library,” “Contact,” “Ask the librarian” and “News” in more than 50 percent of the libraries with mobile-based services has been used. While some services like “Services for disabled,” “Library card,” “Library Strategic Plan” and “Financial services” are less important to deliver on the mobile platform.

Research limitations/implications

The results of the current research are only limited to this environment. Furthermore limited access to all features of some mobile library applications is another limitation of this work. Also, failure to download some of the university apps from the usual App store due to the nationality of the researchers is other limitations of the study. The authors try to find more details of these apps with connecting to the librarians of this statistic society.

Practical implications

The research results indicated that the majority of libraries in the world’s top universities have moved toward designing and using mobile platform in their websites. This survey suggests that the academic libraries of developing countries in order to follow this trend are supposed to plug in most used services based on experience of academic libraries of top universities.

Originality/value

The research results indicated that the majority of libraries in the world’s top universities have moved toward designing and using mobile platform in their websites. This survey suggests that the Iranian academic libraries affiliated with the Ministry of Science, Research and Technology and the Ministry of Health and Medical Education are also trying to follow this trend in order to meet the users’ information needs.

Details

Library Hi Tech, vol. 37 no. 2
Type: Research Article
ISSN: 0737-8831

Keywords

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Article
Publication date: 6 August 2019

Ab Kasaeian, Reza Daneshazarian, Fathollah Pourfayaz, Sahar Babaei, Mojgan Sheikhpour and Shima Nakhjavani

Because of its increased absorptance in fluid and reduced heat loss, direct absorption nanofluid (DANF) is receiving intense interest as an efficient way to harvest solar…

Abstract

Purpose

Because of its increased absorptance in fluid and reduced heat loss, direct absorption nanofluid (DANF) is receiving intense interest as an efficient way to harvest solar energy. This work aims to investigate, for the first time, the application of DANF in parabolic trough collectors (PTC), a promising collector for solar thermal systems.

Design/methodology/approach

A representative flow and heat transfer study of different fluids in a straight tube is conducted, and the basic energy equation and radiative transfer equations are numerically solved to obtain the fluid temperature distribution and energy conversion efficiency. Ethylene glycol (EG) and different concentrations of (i.e., 0.1-0.6 per cent) multi-wall carbon nanotubes (MWCNT) in EG are used as sample fluids. Four cases are studied for a traditional PTC (i.e., using metal tube) and a direct absorption PTC (i.e., using transparent tube) including a bare tube, a tube with an air-filled glass envelope and a tube with vacuumed glass envelop. The numerical results are verified by an experimental study using a copper-glass absorber tube, which reveals the good potential of DANFs.

Findings

Compared with a conventional PTC, using DANF shows an increase of 8.6 per cent and 6.5 K, respectively, in thermal efficiency and outlet temperature difference at a volume fraction (0.5 per cent) of nanoparticles. The results also show that the improvement in solar efficiency increases with increasing particle concentrations, and the vacuum insulated case has the highest efficiency.

Originality/value

In all previous studies, an important section was missing as the effect of photons on the direct solar absorption trough collector, which is considered in this study. This paper proposes a new concept of using direct solar absorption nanofluids for concentrated solar collectors and analyzes the performance of both absorptance and transmittance efficiency considerations. To reveal the potential of the new concept, an analytical model based on energy balance is developed, and two case studies are performed.

Details

International Journal of Numerical Methods for Heat & Fluid Flow, vol. 30 no. 1
Type: Research Article
ISSN: 0961-5539

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Article
Publication date: 2 January 2020

Aatef Hobiny and Ibrahim Abbas

The purpose of this paper is to provide a method for determining the numerical solutions of the thermal damage of cylindrical living tissues using hyperbolic bioheat…

Abstract

Purpose

The purpose of this paper is to provide a method for determining the numerical solutions of the thermal damage of cylindrical living tissues using hyperbolic bioheat model. Due to the complex governing equation, the finite element approach has been adopted to solve these problems. To approve the accuracy of the numerical solution, the numerical outcomes obtained by the finite element approach are compared with the existing experimental study. In addition, the comparisons between the numerical outcomes and the existing experimental data displays that the present mathematical models are efficient tools to evaluate the bioheat transfer in the cylindrical living tissue. Numerical computations for temperatures and thermal damage are presented graphically.

Design/methodology/approach

In this section, the complex equation of bioheat transfer based upon one relaxation time in cylindrical living tissue is summarized by using the finite element method. This method has been used here to get the solution of equation (8) with initial conditions (9) and boundary conditions (10). The finite element technique is a strong method originally advanced for numerical solutions of complex problems in many fields, and it is the approach of choice for complex systems. Another advantage of this method is that it makes it possible to visualize and quantify the physical effects independently of the experimental limits. Abbas and his colleagues [26-34] have solved several problems under generalized thermoelastic theories.

Findings

In this study, the different values of blood perfusion and thermal relaxation time of the dermal part of cylindrical living tissue are used. To verify the accuracy of the numerical solutions, the numerical outcomes obtained by the finite element procedure and the existing experimental study have been compared. This comparison displays that the present mathematical model is an effective tool to evaluate the bioheat transfer in the living tissue.

Originality/value

The validation of the obtained results by using experimental data the numerical solution of hyperbolic bioheat equation is presented. Due to the nonlinearity of the basic equation, the finite element approach is adopted. The effects of thermal relaxation times on the thermal damage and temperature are studied.

Details

International Journal of Numerical Methods for Heat & Fluid Flow, vol. 22 no. 8
Type: Research Article
ISSN: 0961-5539

Keywords

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