Education has been one of the major areas disrupted by the COVID-19 pandemic. This study aims to assess the impact of the COVID-19 pandemic on users’ (students and faculty members) learning in higher education, examining how engineering students and faculty perceived the abrupt transition in comparison to other colleges. The current research aims to investigate the outcomes of enforcing eLearning to facilitate teaching and learning processes in higher education after this unprecedented pandemic and identify the most significant challenges and opportunities the users face. This study uses a quantitative approach; it included 1713 respondents, 227 full-time faculty members, and 1486 students at the University of Sharjah. The survey analysis indicated general agreement that the most significant advantage of online learning implementation was its flexibility in place and time, with 77.2% of users providing positive feedback. Moreover, the accessibility and effectiveness of the assessment and communication methods used showed a positive trend in the hypotheses, 80.3% of the users. The sudden implementation of eLearning during the COVID-19 pandemic had discouraging implications for users' mental health and socialization, where 55.6% of the sample agreed that they had been affected negatively. 75% of the users prefer a flexible model blending face-to-face and e-learning techniques rather than solely depending on either of them. Therefore, A Hybrid-Flexible (HyFlex) is recommended for the university to apply based on the nature of the courses.

Advances in building-integrated photovoltaic (BIPV) systems for residential and commercial purposes are set to minimize overall energy requirements and associated greenhouse gas emissions. The BIPV design considerations entail energy infrastructure, pertinent renewable energy sources, and energy efficiency provisions. In this work, the performance of roof/façade-based BIPV systems and the affecting parameters on cooling/heating loads of buildings are reviewed. Moreover, this work provides an overview of different categories of BIPV, presenting the recent developments and sufficient references, and supporting more successful implementations of BIPV for various globe zones. A number of available technologies decide the best selections, and make easy configuration of the BIPV, avoiding any difficulties, and allowing flexibility of design in order to adapt to local environmental conditions, and are adequate to important considerations, such as building codes, building structures and loads, architectural components, replacement and maintenance, energy resources, and all associated expenditure. The passive and active effects of both air-based and water-based BIPV systems have great effects on the cooling and heating loads and thermal comfort and, hence, on the electricity consumption.

Conventional concrete is a common building material that is often ridden with cracks due to its low tensile strength. Moreover, it has relatively low shear strength and, unless reinforced, undergoes brittle failure under tension and shear. Thus, concrete must be adequately reinforced to prevent brittle tensile and shear failures. Steel fibres are commonly used for this purpose, which can partially or fully replace traditional steel reinforcement. The strength properties and bond characteristics between reinforcing steel fibres and the concrete matrix are crucial in ensuring the effective performance of the composite material. In particular, the quality of the bond has a significant impact on crack development, crack spacing, and crack width, among other parameters. Hence, the proper application of steel fibre-reinforced concrete (SFRC) requires a thorough understanding of the factors influencing its bond behaviour and strength properties. This paper offers a comprehensive review of the main factors controlling the bond behaviour between concrete and steel fibres in SFRC. In particular, we focus on the effects of the physical and mechanical properties of steel fibres (e.g., geometry, inclination angle, embedded length, diameter, and tensile strength) on the bond behaviour. We find that the addition of up to 2% of steel fibres into concrete mixtures can significantly enhance the compressive strength, tensile strength, and flexural strength of concrete components (by about 20%, 143%, and 167%, respectively). Furthermore, a significant enhancement in the pull-out performance of the concrete is observed with the addition of steel fibres at various dosages and geometries.

The common system used for thermal regulation in mosques of United Arab Emirates (UAE) is the heating, ventilating and air-conditioning (HVAC) system. This system increases demands on energy consumption and increases CO₂ emission. A passive design approach is one of the measures to reduce these problems. This study involved an analytical examination of building forms, followed by testing the impact of these forms on its thermal performance and indoor thermal comfort. The tests were conducted using energy simulations software packages. Passive parameters such as shading devices, thermal insulation and natural ventilation were applied in six cases, including the baseline case within each form. The obtained results showed a significant effect of mosque forms as well as passive design techniques on the thermal comfort within the structures. The findings confirmed that the use of passive design alone would not help achieve thermal comfort, but reduce the annual energy consumption by10%. By integrating a hybrid air-conditioning system as another supporting approach, the annual energy consumption could be reduced by 67.5%, which allows for the designing of a much smaller HVAC system.

The purpose of this study is to develop a list of building sustainability criteria and prioritize them in order to identify the most important ones for the context of the United Arab Emirates (UAE). This study also aims to assess buildings as heritage, ordinary modern or sustainable modern buildings with respect to defined sustainability criteria, using the Analytical Hierarchy Process (AHP). Comparing sustainability aspects in both heritage and modern buildings can clarify which ones use more sustainability principles and this can integrate the best principles in both heritage and modern buildings to produce new buildings with better performance. The methodological approach is survey-based, using the answers obtained through questionnaires. Based on a literature review, the main criteria and sub-criteria were defined. A comparison of the relative importance between the rating criteria was made within the framework of the AHP, based on expert opinion, that would allow unambiguous prioritization of the decision-making factors and lead to a consistent result. The study assumes that all participants in the survey are experts who have knowledge of sustainability and buildings and their answers were truthful and reliable. The opinions of stakeholders, owners and building occupants were not taken into consideration. This research contributes to the field of building industry and sustainability. It broadens the understanding of sustainability assessment criteria as well as the degree of importance and validity of each criterion applied to assess the level of sustainability of heritage and modern buildings in the UAE.