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It has constantly been important to investigate the distribution of magnetic fields in high temperature superconducting (HTS) transformers because the high magnetic field applied to the HTS tapes reduces the critical current and increases the ac losses. The purpose of this study is investigation of the impact of the radius of double pancake windings on the electromagnetic behavior of HTS transformer. In this paper, by changing the radius of the windings in a step-by-step manner in two modes, the electromagnetic behaviors in double pancakes (DPs) of a single-phase HTS transformer have been investigated.

In this paper a 15.4 kVA single-phase HTS transformer has been designed and simulated using the finite element method, using COMSOL multiphysics software. The effect of changing the radius of the low-voltage (LV) and high-voltage (HV) windings on the electromagnetic parameters such as distribution of circulating currents and magnetic field in the LV DP windings has been investigated.

According to the results, by increasing the radius of the LV winding, the electromagnetic behavior of the highest and lowest DPs becomes highly undesirable, while in other DPs, it becomes desirable. The same thing happens by increasing the radius of the LV and HV windings, but with much less intensity. Therefore, according to Ce, the most optimal case is when the two windings (HV and LV) are close to each other and to the core, and if the radius needs to be increased, it is better to increase the radius of both windings.

For the first time, the impact of the radius of DP windings on the electromagnetic behavior of HTS transformer has been investigated.

This research work aims to investigate the recent status of the information and communication technology (ICT) services industry in Iran. It proposes a systemic applicable approach at policymaking level and appropriate strategic planning steps to enlighten developing countries toward achieving their target objectives of an information society.

Largely based on existing literature and usage statistics in ICT services, global technology trends and results from a survey to obtain consistent and up-to-date information about current issues of ICT services in the public and private sectors in Iran.

This study elaborates on all issues, points and best practices relevant to the ICT services industry in Iran which is addressed by recommending some documented policies.

Majority of the experts who attended the workshop and responded to the questionnaire were service consumers rather than service providers.

This paper discusses some of the implications for the development of this ICT services strategy and provides policy recommendations.

To enhance the information society with the most advanced ICT services for accelerating human development.

This study provides a government refining process policy to address the common gaps in the ICT services industry in these developing countries and emphasizes a formidable policy foundation before implementing and monitoring of the Flagship ICT projects.

To predict the real behavior of the full-scale model using a scale model, optimized simulation should be achieved. In reinforced concrete (RC) models, scaling can be substantially more critical than in single-material models because of multiple reasons such as insufficient bonding strength between small-diameter steel bars and concrete, and excessive aggregate size. Overall, there is a shortfall of laboratory and field-testing studies on the behavior of secant pile walls under lateral and axial loads. Accordingly, the purpose of this study is to investigate the validity and the performance of the 1/10th scaled RC secant pile wall under the influence of different types of loading.

The structural performance of the examined models was evaluated using two types of tests: bending and axial compression. A self-compacting concrete mix was suggested, which provided the best concrete mix workability and appropriate compressive strength.

Under axial and bending loads, the failure modes were typical. Where the plain and reinforced concrete piles worked in tandem to support the load throughout the loading process, even when they failed. The experimental results were relatively consistent with some empirical equations for calculating the modulus of elasticity and critical buckling load. This confirmed the validity of the proposed model.

According to the analysis and verification of experimental tests, the proposed 1/10th scaled RC secant pile model can be used for future laboratory purposes, especially in the field of geotechnical engineering.

In recent years, zeolites have been highlighted as a new component in many industrial applications owing to their unique properties. The purpose of this study is to apply three prepared types of zeolites Na-X, Na-Y and hydroxysodalite (Na-HS) in anticorrosive paint formulations to be evaluated as a partial replacement to zinc phosphate in anticorrosive paint formulations to protect carbon steel.

The three types of zeolites were characterized using different instrumental analysis such as X-ray diffraction, scanning electron microscopy and X-ray fluorescence. Evaluation of zeolites was done using American society for material and testing. Then, they were incorporated in paint formulations based on medium oil-modified soya-bean dehydrated castor oil alkyd resin in the presence and absence of zinc phosphate. Their corrosion behavior was estimated using both immersion test and electrochemical impedance measurements in 3.5% NaCl.

Generally, the prepared zeolites exhibited good corrosion protection performance, but in presence of zinc phosphate the performance was better. This proves that, zeolites by themselves can resist corrosion but not efficiently, while in presence of zinc phosphate and owing to a synergistic effect between them, the performance was better. This opens the way to partial replacement of zinc phosphate with another safer and cheaper ingredient, which is zeolite.

The three zeolites can be applied in many industries besides the paint industry, such as reinforcing filler in rubber, plastics and ceramic composites, also can be applied in paper filling, paper coatings and electrical insulation.

The three zeolites are environmentally friendly materials that can partially replace other expensive anticorrosive pigments (e.g. zinc phosphate).

The purposes of this study were to determine the food intake purchased from the canteens or markets nearby schools; to estimate the percent intakes of energy and nutrients from canteens and markets nearby the schools as a percent of total energy and nutrient intakes; and to evaluate the association between dietary intake of energy and nutrients eaten from school canteens and markets nearby the school and body weight status.

A sample of 398 students, aged 14–18 years, was recruited from schools in Amman/Jordan. Students’ body weights and heights were measured and socio-demographic data and three days food record were collected.

The intakes of boy students from school canteens were significantly higher than those of girls in carbohydrate (g) (125 ± 6 vs 106 ± 6; p = 0.015), energy from saturated fatty acid (Kcal) (97 ± 4 vs 84 ± 5; p = 0.006), sugar (g) (43 ± 3 vs 35 ± 2; p = 0.009) and fiber (g) (6 ± 0 vs 6 ± 0; p = 0.02). Regarding food groups consumed from markets nearby schools, there were significant differences between boys and girls intake (in which the higher intake was detected in girls as compared to boys) of sweets (g) (4 ± 1 vs 3 ± 2; p = 0.017), soft drinks (ml) (28 ± 5 vs 20 ± 5; p = 0.024) and milk (ml)/milk substitutes (g) (5 ± 2 vs 0 ± 0; p = 0.001). Sugar-sweetened beverages and crackers/snacks consumption was significantly higher in boys as compared to girls. There was a significant relationship between BMI and intakes of sugar, fat, vitamin E and calcium from school canteens.

The contribution of foods from canteens and markets nearby schools was high, with high content of fats, salt and sugar, implying that there is a vital need to establish a strategy and plan of action to fight malnutrition and reduce the intake of unhealthy foods in the school environment in Jordan.

This study investigates the personal branding strategies utilized by Iranian professional athletes. It also examines the challenges these athletes face in attempting to create a personal brand. For example, unlike their global counterparts, Iranian athletes’ access to social media is limited to only Instagram, due to a ban in Iran on the use of Facebook and Twitter. This specific situation provides unique opportunities and interactions in the personal branding process.

Utilizing a criterion purposive sample of Iranian professional athletes, the authors conducted in-depth, semi-structured interviews to understand the branding strategies and challenges of these athletes.

Two categories (branding strategies and cultural/societal challenges), along with Six themes emerged. The categories were derived based on the literature review and the subsequent research questions.

This paper provides valuable information on challenges and opportunities for athletes' personal branding from international perspectives. Also, the results of the study broaden our understanding of how athletes' personal branding can function in different countries and contexts. Findings will provide governing bodies and sport marketers have a better understanding of athletes' social media usage.