Carbon fiber (CF)-filled fiberboard specimens for electromagnetic (EM) shielding applications were produced in this study by mixing CF with wood fiber (WF). The aim of this work was to study the panel properties with different loadings (1%, 2%, 3%, 5%, and 10%) of CF. The mechanical, physical, and electromagnetic interference (EMI) shielding properties of the produced medium density fiberboard (MDF) were analyzed. The shielding effectiveness (SE) of the CF1 sample was 23.5 dB to 35.0 dB in the frequency range of 8.2 GHz to 12.4 GHz. The maximum SE of 64 GHz to 76 dB was obtained for the CF10 sample. The investigation of the mechanical properties of MDF panel indicated that the modulus of rupture (MOR), modulus of elasticity (MOE), and internal bonding (IB) of the composite panels were less than those of the control panel. The MOR, MOE, IB, thickness swelling (TS), and water absorption (WA) of the panel with 1% CF (CF1) were 24.7 MPa, 2,510 MPa, 0.69 MPa, 14.5%, and 52.3% respectively. Generally, the MDF panels with 1% CF exhibited a greater ability for EM shielding applications because of their acceptable properties according to the EN 622-5 (2019) standard and appropriate EM shielding of at least 20 dB.

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The neighborhood attachment provides psychological benefits and has positive behavioral consequences for residents and communities. Much of the literature examines the impacts of individual and social indicators as predictors of place attachment. This research paper concentrates on the place dimension of this bond, examining influences of the built environment in the context of perceived walkability on neighborhood attachment and determining which variables of neighborhood walkability have the most significant impact on promoting neighborhood attachment. Moreover, the effects of neighborhood walkability variables on three main dimensions of neighborhood attachment, namely emotional, functional, and behavioral, are compared. In this study, we draw a random sample of 348 Ekbatan residents aged 15 and above by using the stratified sampling method, and a multidimensional scale is adopted to measure neighborhood attachment and walkability. The findings confirm that respondents assign high or very high ranks to both variables.

This article is a study of the artisanship involved in the construction of Iranian Watermills, and the cultural aspects of a traditional architecture that incorporates an understanding of constructions that date back centuries. Expanding the existing knowledge of these heritage properties and explaining their current condition in order to express the need for the preservation of ancient artisanship as part of a sustainable conservation future are the other prominent concerns of this work.Herein, historical and contemporary documents and travel accounts concerning the traditional buildings of the Iranian water-mills are studied to achieve a better understanding of the buildings background in the region. In addition, depending on the information accessibility and the existence of the constructions` remains, the authors chose some historical sites to be aware of the buildings` current condition and their exact functions based on observational studies. The article discusses that Iranian traditional Water mills represent knowledge of a highly developed technology which makes such ingenious use of natural resources without the consumption of additional power. Among different Iranian Traditional constructions, water-mills are the subject of the main body of this article.