Science and Engineering is an international, peer-reviewed open access journal dedicated to advancing research the field of science and engineering. The journal provides a rapid publication process to ensure wide dissemination of high-quality articles to scientists, professionals, and interested individuals worldwide. Our goal is to serve as an efficient, reliable, and trusted platform for scholars and readers, publishing cutting-edge research in the field.
Abstract: This study focuses on the 2021 Marshall Fire occurring in the Wildland-Urban Interface (WUI) of Colorado, USA, aiming to quantify fire driving factors and devise targeted mitigation strategies. Based on multi-source datasets including ERA5 meteorological reanalysis, MODIS NDVI, SRTM terrain and NLCD land cover products, nine environmental driving factors covering topography, meteorology and vegetation were selected. A random forest model was adopted to quantify the contribution of each factor to the spatial distribution of wildfire and divide fire risk grades for differentiated risk reduction management. The model attained an overall classification accuracy of 93.7%, revealing favorable simulation performance. Topographic elevation served as the dominant driving factor with an importance value of 0.452, followed by relative humidity (0.140) and wind speed (0.116). Burned regions were characterized by higher elevation, lower ambient relative humidity and steeper terrain gradients. Although the regional averaged wind speed was marginally higher in unburned zones, valley-induced localized extreme gusts made wind speed a vital fire-controlling factor. According to factor spatial differentiation, the study partitions the study area into high, medium and low fire risk zones and proposes corresponding risk reduction measures. The research results can support wildfire risk mapping, risk zoning and differentiated prevention & risk reduction management for North American WUI regions.Abstract: This study focuses on the 2021 Marshall Fire occurring in the Wildland-Urban Interface (WUI) of Colorado, USA, aiming to quantify fire driving factors and devise targeted mitigation strategies. Based on multi-source datasets including ERA5 meteorological reanalysis, MODIS NDVI, SRTM terrain and NLCD land cover products, nine environmental driving f...Learn More
Abstract: The Layered magnetoelectric composite antennas, formed by combining magnetostrictive and piezoelectric materials, have emerged as a design paradigm for bulk acoustic wave (BAW) magnetoelectric antennas. This paper proposes a design scheme for a layered magnetoelectric antenna based on FeGaB magnetostrictive material and ZnO piezoelectric material.This design aims to leverage the excellent magnetostrictive properties of FeGaB and the favorable piezoelectric characteristics of ZnO to reduce transmission energy loss through effective coupling at the interlayer interfaces, thereby achieving efficient energy transmission and signal reception in the low-frequency band. Experimental simulations were conducted using COMSOL software,the results indicate that, compared to traditional single-component piezoelectric antennas, the FeGaB/ZnO magnetoelectric composite antenna exhibits smaller dimensions within the low-frequency operating range below 1 GHz. This effectively reduces the overall volume of the antenna, meeting the application requirements of miniaturized, low-power wireless communication devices.This design approach provides valuable insights for the development of miniaturized antennas in the low-frequency band. abstract should be a concise single paragraph, ranging from 200 to 400 words, and should not include any reference citations or footnotes. For research articles, it should provide a brief overview of the background, objective, method, result and conclusion of your article before the main body. In case report, abstract should include background, case presentation and conclusion. It is important to ensure that the abstract presents an objective representation of the article, avoiding the inclusion of results that are not substantiated in the main text and refraining from exaggerating the main conclusions.Abstract: The Layered magnetoelectric composite antennas, formed by combining magnetostrictive and piezoelectric materials, have emerged as a design paradigm for bulk acoustic wave (BAW) magnetoelectric antennas. This paper proposes a design scheme for a layered magnetoelectric antenna based on FeGaB magnetostrictive material and ZnO piezoelectric material.T...Learn More
