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Present study aims to extend the lattice Boltzmann method (LBM) to simulate radiation in geometries with curved boundaries, as the first step to simulate radiation in complex porous media. In recent years, researchers have increasingly explored the use of porous media to improve the heat transfer processes. The lattice Boltzmann method (LBM) is one of the most effective techniques for simulating heat transfer in such media. However, the application of the LBM to study radiation in complex geometries that contain curved boundaries, as found in many porous media, has been limited.

The numerical evaluation of the effect of the radiation-conduction parameter and extinction coefficient on temperature and incident radiation distributions demonstrates that the proposed LBM algorithm provides highly accurate results across all cases, compared to those found in the literature or those obtained using the finite volume method (FVM) with the discrete ordinates method (DOM) for radiative information.

For the case with a conduction-radiation parameter equal to 0.01, the maximum relative error is 1.9% in predicting temperature along vertical central line. The accuracy improves with an increase in the conduction-radiation parameter. Furthermore, the comparison between computational performances of two approaches reveals that the LBM-LBM approach performs significantly faster than the FVM-DOM solver.

The difficulty of radiative modeling in combined problems involving irregular boundaries has led to alternative approaches that generally increase the computational expense to obtain necessary radiative details. To address the limitations of existing methods, this study presents a new approach involving a coupled lattice Boltzmann and first-order blocked-off technique to efficiently model conductive-radiative heat transfer in complex geometries with participating media. This algorithm has been developed using the parallel lattice Boltzmann solver.

The purpose of this paper is to investigate the effect of complete versus partial observations of service failure and recovery. This study also aims at investigating the effect of observing customers’ need for cognitive closure and types of compensation that a service provider offers.

Two experiments are conducted to test the research hypotheses. The authors use scenarios describing failure and recovery encounters that occur to a target customer at restaurant settings, and through manipulation of complete versus partial observations, they investigate observers’ attitudes and behavioral intentions.

The results suggest that customers with a partial observation are less forgiving than those with a complete observation. In particular, the former sympathized more with a target customer, blamed a service provider more and a target customer less and had lower repurchase intentions than the latter. The authors find that the need for cognitive closure heightens this tendency following a partial observation of service failure. They also find that following a complete (versus partial) observation, observers reacted more favorably to service recovery when it included (versus did not include) monetary compensation.

This research studies the effect of locus of causality following a partial versus complete observation. Future research could further examine the effect of stability and controllability. Also, the authors examined the effect of the need for cognitive closure on evaluations of service failure following a partial versus complete observation. Future research could examine the effect of some other individual difference variables.

The results offer some measures to be taken by practitioners. In particular, practitioners are advised to not offer monetary compensation when majority of observers have had a partial observation. Moreover, they are advised to offer some explanation in a timely and effective manner to ensure observers who are under the negative impact of a partial observation have some information so that they revisit their service evaluations.

The literature assumes that in failure and recovery incidents, all observing customers would know the entire story. This research challenges this assumption and highlights the key role of observation type (partial versus complete observation). Further, this research examines the effect of the need for cognitive closure on service evaluations following a partial versus complete observation. The current research finds that supposedly favorable measures by a firm (i.e. monetary compensation) may in fact backfire when a partial observation is at play.

Despite the concept of energy hub becoming widely signed and used in recent literature for addressing energy geopolitics, policies and relationships, it is still being confused interchangeably with other concepts. Hence, the present paper aims to shed light on the concepts of an energy hub, energy corridor, energy transit and energy center to clarify the main differences among these concepts through conducting a systematic review for the previous studies using the VOSviewer software targeting the identification of the main research gaps and clearing any confusion related to these concepts.

This paper conducted a systematic review based on a qualitative synthesis for the available publications from Web of Science and Scopus databases. It also followed strict search and filtration criteria based on the preferred reporting items for systematic reviews and meta-analyses guidelines. In this review, a total of 47 papers, which met the inclusion criteria were selected and identified in the synthesis, and a bibliometric visualization approach were implemented by using VOSviewer software.

The bibliometric analysis presented the growth of the research topic recently. Besides, text mining and keyword analysis revealed the key themes that address energy hubs issues such as security, geopolitics, relationships, policies and transit of energy. The main research gaps identified in this review will provide a reference point that will encourage and open new avenues for other interested researchers for future studies. Furthermore, this review contributes to our understanding of the literature related to energy hub area through bibliometric analysis and visualization of publications data.

According to the authors’ knowledge, this review may be the first bibliometric analysis and systematic review of the energy hub domain.

This study, a theory-based interventional study, aims to promote self-care behaviors regarding sexual and reproductive health in adolescents (female) in Karaj, Iran.

This study was conducted on 90 female students of the Alborz University of Medical Sciences in Iran. For selecting subjects, the researchers went to two girls' dormitories on working days and tried to observe the proportion of students with different fields. Initially, 200 eligible female students were identified in the dormitories of Alborz University of Medical Sciences. Based on the sample size estimation, 100 research units were divided into two groups of receiving counseling (intervention group) and not receiving counseling (control group) by four-digit block randomization. Sexual and reproductive health self-care questionnaire was used as a tool for data collection before, after and one month after intervention. Data were analyzed by using X² and ANOVA tests using SPSS (16).

Both groups were homogeneous in terms of demographic characteristics before the intervention. The results of the study indicated that after education, sexual and reproductive knowledge (p < 0.001), self-care of sexual health (p < 0.001), self-care of menstrual and genital health (p < 0.001) increased significantly. But, regarding parents' communications (p = 0.11), conversation barriers with parents (p = 0.83), interaction with (p = 0.79) and the perceptions of sexual risk behaviors relationships (p = 0.61) differences are not significant.

Failure of parents to participate in this study and the implementation of this study only on the female sex were main limitations of the present study.

Theory-based education can improve sexual and reproductive health in adolescents' girls.

All Authors declare the manuscript entitled “Sexual and reproductive health self-care: a theory-based intervention” is original work of the author. All data, tables, figures, etc. used in the manuscript are prepared originally by authors; otherwise, the sources are cited and reprint permission is attached.

The purpose of this paper is to investigate the effects of internal marketing and market orientation on organizational performance based on the balanced scorecard (BSC).

A cross-sectional research design, drawing upon a questionnaire survey, was used to collect data from a sample of restaurants. Structural equation modeling was performed to test the relationship among the research variables using findings from the 164 participants.

The results revealed that internal marketing positively influenced market orientation and performance. In addition, market orientation was a direct antecedent of performance.

The findings provide important academic, practical and political implications for restaurant industry.

This paper aims to explore the extent to which the internet has created new opportunities for Iranian women in Tehran. It analyses both challenges and opportunities offered to Iranian women by the internet as a means of economic empowerment.

This paper adopts a qualitative approach and based on 13 semi-structured interviews with female internet users between the ages of 20 and 55 years. The qualitative data was collected through open-ended questions in face-to-face interviews. This study uses ethnography as a research tool to explore the question of whether the internet has made a difference in the economic lives of Iranian women.

Result reveals that the internet and working online have significant impact on the economic lives of Tehrani women by enabling them to engage in new forms of online business. This technology is being used for online advertising to attract more clients, to establish business contacts with peers and to manage households positively.

The result of the research cannot be regarded as applicable to all women in Iran, as the opportunity to access online economic activities is only available to those women who are highly trained and well-educated. In addition, the result of the research may not reflect the barriers that women from different social classes and ethnic groups have faced in the achievement of economic empowerment online.

The study highlights that due to a generally lack of computer proficiency, women in these areas are unable to effectively maximise their participation in the online economic sphere. This barrier must be removed by enhancing women’s computer literacy and ICT (information, communication and technologies) and establishing development networking programme centres for internet skills training.

The internet has created opportunity for Iranian women to expand their participation in the online economic sphere. However, research in the field of online economic activities in Iran, especially concerning women working online, is scant. The key contribution of this paper is to fill the gap in this area of study, in particular offering insights into the ways in which women use the internet to overcome the boundaries of physical space and become empowered.

Salak (Salacca zalacca) is an underutilised fruit. The bioactivities of this fruit have rarely been studied scientifically. Thus, the present study aimed to determine the antioxidant activity of extracts derived from the peel, fruit and kernel of the Salak fruit, as well as the hypoglycemic and anti-hypertensive properties of Salak peel extracts.

The peel, fruit and kernel of the Salak were extracted using distilled water, methanol and ethanol. Antioxidant activities, angiotensin-converting enzyme (ACE) and alpha-amylase inhibition properties of the extracts were estimated via in vitro standard methods. Besides, the total phenolic content (TPC) and total flavonoid content (TFC) of the extracts were also determined in the present study. The antioxidant activities of different parts of Salak extracts were determined by ferric-reducing antioxidant power (FRAP) and Trolox equivalent antioxidant capacity (TEAC) methods. Percent of radical scavenging properties were calculated via DPPH assay. The hypoglycemic and anti-hypertensive properties of Salak peel were evaluated using alpha-amylase inhibition and ACE assays, respectively.

Fruit extracts of Salak in methanol were found to exhibit the highest TPC (10.27 ± 0.12 mg GAE/g), TFC (11.04 ± 0.89 mg CE/g) and antioxidant properties amongst all samples whereby the TPC and TFC were strongly correlated with antioxidant activities. On the other hand, distilled water extracted Salak kernel showed to have the lowest TPC (0.53 ± 0.05 mg GAE/g), TFC (0.37 ± 0.01 mg CE/g) and antioxidant properties amongst all the Salak extracts. Peel extracts exhibit comparable antioxidant activities with fruit extracts in the current findings. In addition, peel extracts indicated some extend of ACE and alpha-amylase inhibition activities regardless of the solvents used. Methanol and ethanol peel extracts indicated no significant difference (p < 0.05) ACE (98%) and alpha-amylase (90%) inhibition activities. However, distilled water extracted Salak peel showed significantly lower ACE and alpha-amylase inhibition in comparison to methanol and ethanol peel extracts.

The present findings suggested that the fruit of Salak exhibits the highest antioxidant properties, followed by the peel and lastly, the kernel, which shows the lowest antioxidant properties amongst all the samples. The results also indicated that the peel extracts have ACE and alpha-amylase inhibition activities.

The purpose of this paper is to investigate the implications of supply chain strategies that manufacturing companies can use to minimise or overcome natural resource scarcity, and ultimately improve resource efficiency and achieve competitive advantage. The relationship between resource efficiency and competitive advantage is also explored.

The proposed research model draws on resource dependence theory. Data were collected from 183 logistics, purchasing, sustainability and supply chain managers from various manufacturing companies and analysed by applying the partial least squares structural equation modelling technique.

The results indicate that both buffering and bridging strategies improve resource efficiency; however, only bridging strategies seem to lead to firm’s competitive advantage in terms of ownership and accessibility to resources. The relationship between resource efficiency and competitive advantage is not supported.

Future research could confirm the robustness of these findings by using a larger sample size and taking into account other supply chain members.

This research provides guidance to managers faced with the growing risk of resource scarcity to achieve a resource efficient supply chain and an advantage over competitors.

Studies have explored the appropriate strategies for minimising dependencies caused by the scarcity of natural resources in the field of supply chain management; however, there is limited empirical work on investigating the impact of these strategies on resource efficiency and competitive advantage.

Total quality management (TQM) is a part of the total quality assurance perspective. This system, which is considered as a type of managerial philosophy, employs all organizational levels to constantly ameliorate the quality of goods and service. The purpose of this paper is to measure the effect of hard and soft TQM factors on the behavior of customers based on the role of innovation and continuous improvement.

The research model was extracted from TQM variables in hard and soft parts, customer behavior, innovation and continuous improvement by reviewing the literature and research background. Based on this, a questionnaire was prepared and then, distributed among the statistical population including 374 project managers, quality assurance managers as well as quality control managers by using simple random sampling. All sub-criteria of questionnaire were determined using Delphi technique, to test the research model. Having gathered the questionnaire, the hypotheses were analyzed by using structural equation modeling and AMOS software.

According to the statistical analyses, TQM has a significant effect on customer behavior through continuous improvement of the quality and innovation. Also, regarding the obtained results, the highest effect was related to the effect of hard TQM factors on customer behavior through innovation as 0.62. Furtheremore, TQM soft factors such as human resource management have significant effect on customer behavior through quality improvement and innovation. Moreover, TQM hard factors are effective on customer behavior through quality improvement and innovation.

The questionnaire was designed and distributed in order to evaluate the hypotheses in this study. One of the primary rationales behind utilizing this method instead of other methods such as interview was high geographical distribution of organizations. Using other moderator variables such as knowledge management, customer knowledge management and customer emotions can be conducted in the future in this area.

Changing the organizational relationships from task orientation to the process orientation, and controlling the organizational performance by measuring process innovations and improvements, while paying attention to the customer satisfaction system are suggested in this paper. These implications should be implemented in construction projects by department of project management office. Furtheremore, providing different communication for receiving the opinions of the customer and imposing them in the product and service, paying attention to the response system and customer complaint, implementation of this process in the organization, and having a process approach for presenting and developing services are the main subjects in this regard.

Unlike previous studies on this subject, a structural equation model is used for assessing unobservable latent constructs and their related interrelationship in measuring the impact of TQM factors. Focusing on customer behavior which is a broader domain than customer satisfation through continuous improvement of the quality and innovation is another value of this research.