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| http://dx.doi.org/10.1136/bmj.1.5375.75 | DOI Listing |
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Ascertaining the Environmental Advantages of Pavement Designs Incorporating Recycled Content through a Parametric and Probabilistic Approach.
Environ Sci Technol
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College of Environmental Science and Engineering, Nankai University, 38 Tongyan Road, Jinnan District, 300350 Tianjin, China.
Reclaimed asphalt pavement (RAP) is a widely used end-of-life (EoL) material in asphalt pavements to increase the material circularity. However, the performance loss due to using RAP in the asphalt binder layer often requires a thicker layer, leading to additional material usage, energy consumption, and transportation effort. In this study, we developed a parametric and probabilistic life cycle assessment (LCA) framework to robustly compare various pavement designs incorporating recycled materials.
View Article and Find Full Text PDFEnhancement of the production of terpenoid and flavonoid secondary metabolites in the ground and aerial parts of licorice composite plant in a hydroponic system.
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Biotechnology Research Department, Research Institute of Forests and Rangelands, Agricultural Research Education and Extension Organization (AREEO), National Botanical Garden, Tehran Karaj Freeway, P.O. Box 13185-116, Tehran, Iran.
Hairy roots mediated by Agrobacterium rhizogenes can be obtained from the composite plants (plants with hairy roots and untransformed aerial parts) by ex vitro method. Composite plants can produce higher amounts of secondary metabolites by merging hydroponic systems. This provides a stable condition for composite plants, in which various metabolites are produced in different parts.
View Article and Find Full Text PDFA coordinated control framework of freeway continuous merging areas considering traffic risks and energy consumption.
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School of Automotive and Transportation Engineering, Hefei University of Technology, Hefei 230009 China. Electronic address:
Freeway continuous merging areas in a short distance exist continuous multiple ramps. In these areas, traffic flow and vehicle interactions are more complex, and traffic crashes and congestion are more frequent, which has been a major concern influencing traffic operation of freeways. Active traffic management (ATM) measures can improve traffic efficiency and reduce traffic risks in merging areas.
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View Article and Find Full Text PDFPartially temporally constrained modeling of speeding crash-injury severities on freeways and non-freeways before, during, and after the stay-at-home order.
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USDOT Center for Advanced Multimodal Mobility Solutions and Education, United States; Department of Civil and Environmental Engineering, University of North Carolina at Charlotte, United States. Electronic address:
Speeding crashes remain high injury severities after the stay-at-home order in California, highlighting a need for further investigation into the fundamental cause of this increment. To systematically explore the temporal impacts of the stay-at-home order on speeding behaviors and the corresponding crash-injury outcomes, this study utilizes California-reported single-vehicle speeding crashes on freeways (access-controlled) and non-freeways (non-access-controlled) before, during, and after the order. Significant injury factors and in-depth heterogeneity across observations are identified by random parameter logit models with heterogeneity in means and variances.
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