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This study aims to minimize the cost and time of blood delivery in the whole blood supply chain network (BSCN) in disaster conditions. In other words, integrating all strategic, tactical and operational decisions of three levels of blood collection, processing and distribution leads to satisfying the demand at the right time.

This paper proposes an integrated BSCN in disaster conditions to consider four categories of facilities, including temporary blood collection centers, field hospitals, main blood processing centers and medical centers, to optimize demand response time appropriately. The proposed model applies the location of all permanent and emergency facilities in three levels: blood collection, processing and distribution. Other essential decisions, including multipurpose facilities, emergency transportation, inventory and allocation, were also used in the model. The LP metric method is applied to solve the proposed bi-objective mathematical model for the BSCN.

The findings show that this model clarifies its efficiency in the total cost and blood delivery time reduction, which results in a low carbon transmission of the blood supply chain.

The researchers proposed an integrated BSCN in disaster conditions to minimize the cost and time of blood delivery. They considered multipurpose capabilities for facilities (e.g. field hospitals are responsible for the three purposes of blood collection, processing and distribution), and so locating permanent and emergency facilities at three levels of blood collection, processing and distribution, support facilities, emergency transportation and traffic on the route with pollution were used to present a new model.

The purpose of this study is investigating the effect of using multi-phase nanofluids, Rayleigh number and baffle arrangement simultaneously on the heat transfer rate and Predict the optimal arrangement type of baffles in the differentiation of Rayleigh number in a 3D enclosure.

Simulations were performed on the base of the L25 Taguchi orthogonal array, and each test was conducted under different height and baffle arrangement. The multi-phase thermal lattice Boltzmann based on the D3Q19 method was used for modeling fluid flow and temperature fields.

Streamlines, isotherms, nanofluid volume fraction distribution and Nusselt number along the wall surface for 104 < Ra < 108 have been demonstrated. Signal-to-noise ratios have been analyzed to predict optimal conditions of maximize and minimize the heat transfer rate. The results show that by choosing the appropriate height and arrangement of the baffles, the average Nusselt number can be changed by more than 57 per cent.

The value of this paper is surveying three-dimensional and two-phase simulation for nanofluid. Also using the Taguchi method for Predicting the optimal arrangement type of baffles in a multi-part enclosure. Finally statistical analysis of the results by using of two maximum and minimum target Function heat transfer rates.

The purpose of this paper is to consider natural convection of a nanofluid inside of a C-shaped cavity using Lattice Boltzmann method (LBM).

Effects of some geometry and flow parameters consisting of the aspect ratio of the cavity, aspect ratio of the heat source; Rayleigh number (Ra = 10³ − 10⁶) have been investigated. The validity of the method is checked by comparing the present results with ones from the previously published work.

The results demonstrate that for Ra = 10³, the aspect ratio of the heat source has more influence on the average Nusselt number in contrast to the case of Ra = 10⁶. Contrary to the fact that the average Nusselt number increases non-linearly more than twice because of the increase of the aspect ratio of the enclosure at Ra = 10³, the average Nusselt number has a linear relation with the aspect ratio for of Ra = 10⁶. Therefore, upon increasing the Rayleigh number, the efficiency of the aspect ratio of the cavity on the thermal convection, gradually diminishes.

The authors believe that all the results, both numerical and asymptotic, are original and have not been published elsewhere.

This paper aims to study the natural convection of a nanofluid inside a cavity which contains obstacles using lattice Boltzmann method (LBM). The results have focused mainly on various parameters such as number and aspect ratio of roughness elements and different nanoparticle volume fraction. The isotherms and streamlines are presented to describe the hydrodynamics and thermal behaviors of the nanofluid flow throughout the enclosure.

The methodology of this paper consists of mathematical model, statement of the problem, nanofluid thermophysical properties, lattice Boltzmann method, LBM for fluid flow, LBM for heat transfer, numerical strategy, boundary conditions, Nusselt (Nu) number calculation, code validation and grid independence.

Natural convection heat transfers of a nanofluid inside cavities with and without rough elements have been studied. Lattice Boltzmann technique has been used as numerical approach. The results showed that at higher Rayleigh number (Ra = 10⁶), there are denser streamlines near the left (source) and right wall (sink) which results in better cooling and enhances convective heat rejection to the heat sink. After a distinctive aspect ratio of rough elements (A =0.1), change in streamline pattern which arises from increasing of aspect ratio does not have an important effect on isotherms. Results indicate that for lower Rayleigh number (Ra =10³), no variation in average Nu is observed with increasing in number of roughness, while for higher one (Ra = 10⁶) average Nu decreases from N = 0 (smooth cavity) up to N = 4 and then remains constant (N = 6).

Currently, no argumentative and comprehensive extraction can be concluded without fully understanding the role of different arrangement of roughness. Some geometrical parameters such as aspect ratio, number and position of rough elements have been considered. Also, the effect of nanoparticle concentration was studied at different Ra number. Briefly, using LBM, this paper aims to investigate the natural convection of a nanofluid flow on the thermal and hydrodynamics parameters in the presence of rough element with various arrangements.

Through a project of cooperation between the Ministry of Heritage and Tourism (MHT) and Sultan Qaboos University (SQU), a team including faculty members, technicians and students from the SQU department of civil and architectural engineering (CAE), was involved in the project of documentation, survey and the development of management plans of four (4) Omani Vernacular settlements (Harat). Such an experience was meant to initiate students from different levels in undergraduate programs of civil and architectural engineering to the fieldwork and professional practice in the field of built heritage studies. The present research aims to explore the effect of such an experience on the learning process and skills acquired by the involved students.

The research was undertaken with students of CAE undergraduate programs at SQU. The documentation method has been implemented in 4 different settlements with the same students. A questionnaire has been administered to the participating students after their graduation to collect their feedback regarding the benefits of this experience on their education and skills development. The data was complemented by active observation and semi-directive interviews with some students randomly selected among the respondents to the questionnaire.

The outcome of each documentation campaign as well as the results of the questionnaires administered revealed that this experience has raised students' awareness about the importance of studying the built heritage and safeguarding it. The research has shown that important soft skills, such as team-working, leadership and communication, have been consolidated. It has also revealed that this experience was an opportunity for students to discover the variety of options within the profession of architecture and its intellectual and ethical responsibilities. Such aspects are hardly grasped when taught within a “classical” teaching/learning setting.

The main limitations of this research were the hard working conditions during the summer in Oman and the direct interaction of the students with the buildings. Even cautious, such interaction represents a risk for an already fragile heritage.

The paper includes a detailed description of the architectural documentation tools and methods used in the case studies. These tools and methods can easily be applicable, with slight adaptations, in other architectural documentation projects involving undergraduate students. The documentation methodology and the generated corpus of 3D digital models can be used in other documentation projects and further studies such as architectural typologies, bioclimatic properties, natural ventilation patterns, daylight performance, etc.

This paper reports on the outcomes of the first experience of its kind in Oman and the Gulf region, where undergraduate students (predominantly females) were involved in an interdisciplinary project for the documentation of important vernacular settlements and their buildings. The added value of this research is that its methodology can be a reference for professors of Architecture and related specialties aiming to integrate research and field work with education.

This paper aims to provide an understanding of employee motivation from the Islamic perspective. The main objective of this paper is to understand Islamic motivation and to explore if Islamic spirituality, punishment and reward and justice motivate Muslim employees.

Qualitative research approach was used to understand and examine the views of the respondents. Semi-structured interviewing technique was adopted, and the respondents were asked to share their own thoughts and understanding for each question provided. A sample of 13 experienced academicians and practitioners from renowned private organizations and academic institutions from Malaysia and Pakistan were selected for the present study.

The study found that the conventional viewpoint of motivation varies from Islamic viewpoint in regard to motivation of employees. And significantly, Islamic spirituality, reward and punishment, and justice act more compellingly in improving employee’s motivation.

This paper clearly highlights that the Western viewpoint of employee motivation is different as compared to the Islamic perspective.