Results 91 to 100 of about 12,178 (304)

Morphological Indicators of a Mascon Beneath Ceres's Largest Crater, Kerwan

Geophysical Research Letters, 2018
Gravity data of Ceres returned by the National Aeronautics and Space Administration's Dawn spacecraft is consistent with a lower density crust of variable thickness overlying a higher density mantle. Crustal thickness variations can affect the long‐term,
M. T. Bland, A. I. Ermakov, C. A. Raymond, D. A. Williams, T. J. Bowling, F. Preusker, R. S. Park, S. Marchi, J. C. Castillo‐Rogez, R. R. Fu, C. T. Russell   +10 more
doaj   +1 more source

Biomaterials for resolution of peri‐implantitis: Consensus report of Workgroup 2 of the IADR Implantology Research Group Best Evidence Consensus Symposium on Peri‐Implant Disease and Its Treatment

Journal of Periodontology, EarlyView.
Abstract Background Peri‐implantitis is a destructive disease affecting the tissues surrounding dental implants. Biomaterials may be applied during surgical treatment to reconstruct bony defects and support soft tissue healing. However, current evidence is unclear if these treatments increase the likelihood of peri‐implantitis resolution.
Sukirth M. Ganesan, David R. Fraser, Mustafa Tattan, Jessica M. Latimer, IADR IRG Peri‐Implantitis Best Evidence Consensus Working Group 2, Mario Aimetti, Hatice Hasturk, Purnima S. Kumar, Fernando Suarez Lopez Del Amo, Andreas Stavropoulos, Daniel S. Thoma, Spyridon Vassilopoulos, Hom‐Lay Wang, Georgios Kotsakis   +13 more
wiley   +1 more source

Investigating the Complexity of Impact Crater Ejecta

, 2015
The formation of an impact crater ejecta blanket can be viewed as a form of organized chaos. Material that is ejected from a crater is heavily brecciated, but falls back to the surface along ballistic trajectories, generally preserving an inverted sense ...
Zanetti, Michael Raymond
core   +2 more sources

Recent progress of geophysical exploration in Earth's impact craters

地球与行星物理论评
Geophysical exploration plays an important role in detecting and studying impact structures. This article reviews the common geophysical features of Earth's impact craters, including their gravity, magnetic, electrical, and seismic characteristics.
Yangfan Deng, Heng Luo, Zhou Zhang, Sheng Zhu, Runqing Huang, Zhongfa Hu, Xin Li   +6 more
doaj   +1 more source

Deep learning cone‐beam computed tomography image segmentation for the 3D visualization of mandibular infraosseous periodontal defects

Journal of Periodontology, EarlyView.
Abstract Background The accurate assessment of infraosseous periodontal defects is crucial for effective diagnosis and treatment planning. Cone‐beam computed tomography (CBCT) enables detailed imaging of these defects; however, to leverage their full potential, CBCT images must be reconstructed in 3 dimensions (3D).
Daniel Palkovics, Balint Molnar, Csaba Pinter, David García‐Mato, Andres Diaz‐Pinto, Attila Tanacs, Andrea Dobos, Peter Windisch, Christoph A. Ramseier   +8 more
wiley   +1 more source

Planetary impact crater analysis with eigenfunction expansion

, 2002
High-resolution topography has recently become available for a number of planetary bodies such as the Moon, Venus, Mercury and particularly Mars, with the 32nd-degree global Martian topography from the Mars Orbital Laser Altimeter on Mars Global Surveyor.
McBride, N., Wallis, D.
core   +1 more source

Dynamic cratering of graphite: Experimental results and simulations [PDF]

, 2013
The cratering process in brittle materials under hypervelocity impact (HVI) is of major relevance for debris shielding in spacecraft or high-power laser applications.
BOUSTIE, Michel, Bertron, I., GUILLET, F, Seisson, Gabriel, Boustie, M., Chevalier, J.-M, Videau, I., LESCOUTE, Emilien, VIDEAU, Laurent, Hallo, Ludovic, Lescoute, E., SEISSON, G, Hallo, L., Hebert, D, BERTHE, Laurent, BOUSTIE, M, Guillet, F., Lescoute, E, HALLO, L, COMBIS, Patrick, Chevalier, Jean-Michel, HEBERT, David, SEISSON, G., Combis, P, Hébert, D., BERTRON, I, CHEVALIER, J.M, Videau, L   +27 more
core   +1 more source

Are the detection and dimensions of peri‐implant buccal bone defects influenced by different implant materials and their location? An experimental cone‐beam computed tomography study

Journal of Periodontology, EarlyView.
Abstract Background The aim of this study is to evaluate the impact of different implant materials and arrangements within the field of view (FOV) and exomass on the diagnostic accuracy and image quality of cone‐beam computed tomography (CBCT) for the detection of peri‐implant buccal bone defects of various sizes. Methods A total of 120 CBCT scans with
Yulan Wang, Matheus L. Oliveira, Dorothea Dagassan‐Berndt, Michelle Simonek, Sebastian Kühl, Michael M. Bornstein   +5 more
wiley   +1 more source

Influence of TiN inclusions and segregation bands on the mechanical properties and ballistic performance during ballistic impact tests in low-alloy high-strength steel

Frontiers in Materials
The influence of TiN inclusions and segregation bands on the mechanical properties and ballistic performance was investigated in high-strength steel.
Keke Tong, Haoran Sun, Luxing Duan, Xiurong Zuo   +3 more
doaj   +1 more source

Impact of abrasive versus non‐abrasive cleaning on peri‐implantitis titanium release: A randomized clinical trial

Journal of Periodontology, EarlyView.
Abstract Background Surface decontamination is integral to peri‐implantitis treatment. However, abrasive mechanical methods can cause implant surface degradation with possible adverse biological effects. No human studies have examined whether these treatments cause titanium release or impair regenerative outcomes.
Georgios A. Kotsakis, Antonella Botto, Marzieh S. Jazaeri, Archontia Palaiologou, Eddie Lee, Diane M. Daubert   +5 more
wiley   +1 more source