The fracture of tooth structure and/or restorative material within a crown or fixed partial denture abutment poses a restorative challenge. Depending upon the severity of the fracture and health of the tooth or teeth involved, the restoration often can be re-cemented, restoring the tooth to a serviceable condition. This article describes a technique that provides a safe and efficient means of restoring the fractured tooth, thereby overcoming a major obstacle to the conventional recementation process. An application of the technique also is described.
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Ont Health Technol Assess Ser
December 2024
Background: In medicine, x-rays are used to generate images of tissues and structures inside the body. X-rays are emitted by a source device and, after passing through the body, strike a detector, which forms an image of the tissues and structures the x-rays passed through. Dual-energy subtraction (DES) x-ray systems use radiation of different energy spectra (energy levels) and the principle of differential absorption characteristics of bone and soft tissue to produce separate bone and soft tissue x-ray images, in addition to a conventional x-ray image.
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December 2024
Department of Mechanical Engineering, Massachusetts Institute of Technology, 127 Massachusetts Avenue, Cambridge, MA, 02142, USA.
Dust accumulation on solar panels is a mjor operational challenge faced by the photovoltaic industry. Removing dust using water-based cleaning is expensive and unsustainable. Dust repulsion via charge induction is an efficient way to clean solar panels and recover power output without consuming any water.
View Article and Find Full Text PDFHeliyon
November 2024
Department of Civil Engineering, Imam Khomeini International University, Qazvin, Iran.
High strength concrete (HSC) is highly appropriate for the retrofitting and rehabilitation of reinforced concrete structures due to its low permeability and high bonding strength. However, its low workability and sensitivity to curing conditions pose significant challenges for its implementation in such projects. This study introduces a novel technique to overcome the workability barrier of HSC while enhancing its bonding strength under various curing conditions.
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November 2024
Department of Civil Engineering, College of Engineering, Prince Sattam bin Abdulaziz University, Alkharj, 16273, Saudi Arabia.
This research examines how Holistic Building Design (HBD) affects Lifecycle Management of Building Structures in the ever-changing construction market. HBD includes adaptability, environmental sustainability, maintenance, and disaster preparation. It is a key idea in the present boom in resilient and sustainable building techniques.
View Article and Find Full Text PDFJ Acoust Soc Am
November 2024
Scripps Institution of Oceanography, University of California San Diego, La Jolla, California 92037, USA.
Ship noise pollution significantly overlaps with critical habitats of endangered whales in the Santa Barbara Channel, prompting the need for effective noise reduction strategies. Various ship noise reduction approaches were assessed by simulating both source-centric (e.g.
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