4 research outputs found

    Study on Transmission Characteristics in Three Kinds of Deformed Finlines Based on Edge-Based Finite Element Method

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    The influence of model deformation on the transmission characteristics in unilateral finline, antipodal finline and bilateral finline is discussed using edge-based finite element method (FEM). The deformation is considered with respect to the eight boundaries of the model, and their amplitude is set to 0.01–0.05; the transmission characteristics include the cutoff wavelength characteristics of the dominant mode and the single-mode bandwidth characteristics. The results show a decreasing trend when the vacuum area is deformed, while they show a variety of possibilities when the loading region is deformed. These numerical results have strong guiding significance for the influence of the deformation of finlines on the overall device

    Effect of Luminaries’ Arrangement and Type on Visual Comfort and Energy Consumption

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    The current study seeks to evaluate the effect of luminaries’ arrangement and type on visual comfort and energy consumption. Two identical classrooms with different luminaries’ arrangements were selected to evaluate the efficacy of the existing lighting system in terms of illuminance uniformity, unified glare rating, and installed load efficacy ratio. DIALux Evo software validated against measured illuminance then employed to assess other suggested luminaries’ arrangement and replacing the existing fluorescent lamp with LED type to recommend the best scenario. The findings of the study indicate that the Luminaries’ arrangement and type are decisive factors that affect visual comfort and save energy wastage. Accordingly, we recommend distributing the luminaries in a way that the number of rows equals the number of columns and consider the longitudinal length of the luminaire to be parallel to the longitudinal length of the illuminated space. Field measurements revealed that the existing lighting system does not offer visual comfort for occupants and simulation findings recommend using LED luminaries in classrooms to ensure visual comfort and save energy wastage up to 50%

    Research on sustainable design of sports centre based on algorithm verification

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    In the process of urbanisation in China, many cities expect to promote the development of new towns through the construction of sports centres. However, due to the unreasonable design of the scale, accessibility and vitality of the sports centre, the catalyst effect of the sports centre is difficult to play an effective role. Using cluster analysis algorithm and spatial syntax, this study analyses the algorithm of sports centres with sustainable development characteristics, and puts forward the conclusions of sustainable development planning strategies such as venue merger design under the principle of intensive, maintaining high accessibility of sports centres, ensuring the compound function of surrounding plots and grid space to improve regional vitality, in order to provide some inspiration for the planning and construction of Sports Centre in the future

    Project-based Online Learning of Practical Engineering Course throughout COVID-19 Pandemic: A Case Study Analysis of MEP Electrical Systems Design Using Revit

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    In this paper, we will present our experiences and results in delivering and developing the course assessments of the engineering practical course. Moreover, we will compare and discuss the course assessment type of the engineering practical courses between the physical classes and the online classes, because we suffer in our distance learning during Covid-19 pandemic since we transferred to distance learning in February 2020 in the kingdom of Bahrain. In my last class in spring semester, I used to change my course assessments by adding the project-based assessment with 55% grade, keeping the rest of the grades for assignment, quiz, written exams and students class participation. Therefore, I can assess my students gradually using a well-defined Rubrics and I can determine the student project progression and implementation, then I can follow up and give them my feedback to enhance the project requirements and finally to achieve the course outcomes. The student project has several-linked course ILOs, and it can be implemented within three steps under the observation of the instructor. The project began with an introduction of the design concepts of a specific residential plan selected by the student, and then started to apply the architectural plan using Revit, finally create the electrical plan using MEP facilities in Revit. This modification in course assessment is very important; I consider it a successful way especially during the current situation of covid-19 pandemic after most of the educational institutions converted to distance learning. This situation needs more important requirements, not only improving the program infrastructure, but also developing your course specification which involves several aspects, such as the course ILOs, course assessment, teaching methods, course materials and learning resources
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