Results 41 to 50 of about 284,015 (333)

Elbow Dislocation with Ipsilateral Radial Shaft Fracture – A Case Report

Revista Iberoamericana de Cirugía de la Mano, 2019
Background Posterior dislocation of the elbow associated to a radial shaft fracture is a rare lesion, its treatment is difficult and complicated, and the indications, surgical options, and timing of surgery may vary.
Marcio Aurelio Aita, Ricardo Kaempf de Oliveira, Rafael Pêgas Praetzel, Fernando Towata, Pedro Jose Delgado, Fabiano da Silva Marques   +5 more
doaj   +1 more source

Artifacts in metallography: etching pits

Литьë и металлургия, 2023
The article considers etch pits that appear in metals and alloys during metallographic etching as an artifact. The optical contrasting tools capabilities, such as dark field, polarized light, and differential interference contrast in detecting etch pits,
A. G. Anisovich
doaj   +1 more source

Topological Gauge Theory Of General Weitzenbock Manifolds Of Dislocations In Crystals

, 1999
General Weitzenbock material manifolds of dislocations in crystals Are proposed, the reference, idealized and deformation states of the bodies in general case are generally described by the general manifolds, the topological gauge field theory of ...
B.L Lin, Bilby, Carmei, Creutz, Deng, Duan, Duan, Duan, Duan, Duan, Glendenning, Huang, Kleinert, Kleinert, Kobayashi, Kondo, Kröner, Kröner, Kröner, Kröner, Lee, Nye, Roland, Toulous, Trebin, Y.C Huang, Yang, Yang   +27 more
core   +1 more source

Impact of Screw and Edge Dislocation on the Thermal Conductivity of Nanowires and Bulk GaN

, 2017
We report on thermal transport properties of wurtzite GaN in the presence of dislocations, by using molecular dynamics simulations. A variety of isolated dislocations in a nanowire configuration were analyzed and found to reduce considerably the thermal ...
Belabbas, Imad, Isaiev, Mykola, Kioseoglou, Joseph, Lacroix, David, Salnikova, Anastasiia, Termentzidis, Konstantinos   +5 more
core   +2 more sources

Dislocations in nanowire heterostructures: from discrete to continuum [PDF]

, 2013
We discuss an atomistic model for heterogeneous nanowires, allowing for dislocations at the interface. We study the limit as the atomic distance converges to zero, considering simultaneously a dimension reduction and the passage from discrete to ...
Lazzaroni, Giuliano, Palombaro, Mariapia, Schlömerkemper, Anja   +2 more
core   +1 more source

Atomistic simulations of kinks in 1/2a<111> screw dislocations in bcc tantalum [PDF]

, 2003
Two types of equilibrium core structures (denoted symmetric and asymmetric) for 1/2a screw dislocations in bcc metals have been found in atomistic simulations. In asymmetric (or polarized) cores, the central three atoms simultaneously translate along the
Goddard, William A., III, Strachan, Alejandro, Wang, Guofeng, Çağin, Tahir   +3 more
core   +1 more source

Toward defect-free semi-polar GaN templates on pre-structured sapphire [PDF]

, 2016
The microstructure of semi-polar (11–22) GaN templates grown on pre-structured r-plane sapphire by MOVPE has been characterized by TEM. Cross-sectional observations indicate that defects are generated in three regions of the layers: threading ...
Caliebe, Caliebe, Chichibu, de Mierry, Furuya, Han, Markurt, Okada, Okada, Pristovsek, Ryou, Scholz, Schwaiger, Speck, Tendille, Tendille, Vennéguès, Vennéguès, Wu   +18 more
core   +1 more source

STAT3 expression is reduced in cardiac pericytes in HFpEF and its loss reduces cellular adhesion and induces pericyte senescence

FEBS Letters, EarlyView.
Heart failure with preserved ejection fraction (HFpEF) accounts for half of the heart failure cases. It is characterised by microvascular dysfunction, associated with reduced pericyte coverage and diminished STAT3 expression in pericytes. Loss of STAT3 impairs pericyte adhesion, promotes senescence, and activates a pro‐fibrotic gene program.
Leah Rebecca Vanicek, Ariane Fischer, Mariano Ruz Jurado, Anita Tamiato, Tara Procida‐Kowalski, Jochen Wilhelm, Dennis Hecker, Maximilian Merten, Felicitas Escher, Badder Kattih, Valentina Puntmann, David John, Marcel H. Schulz, Eike Nagel, Stefanie Dimmeler, Guillermo Luxán   +15 more
wiley   +1 more source

Lunate dislocation

Journal of the Belgian Society of Radiology, 2014
A 38 year-old patient was admitted to the emergency department after road accident due to pain on palpation of the right wrist, the 1st and the 2nd finger of the right hand. The patient was subsequently referred for an X-ray. Following the proper positioning of the patient and the systematic analysis of the wrist X-ray (PA and lateral view), a lunate ...
Filippitzi, Fotini, Dallaudière, Benjamin, Omoumi, Patrick, Lecouvet, Frédéric, Lefere, Mathieu, Vande Berg, Bruno, Larbi, Ahmed   +6 more
openaire   +6 more sources

Dislocations in uniaxial lamellar phases of liquid crystals, polymers and amphiphilic systems

, 1995
Dislocations in soft condensed matter systems such as lamellar systems of polymers, liquid crystals and ternary mixtures of oil, water and surfactant (amphiphilic systems) are described in the framework of continuum elastic theory.
Holyst, R., Oswald, P.
core   +1 more source