Results 111 to 120 of about 1,087,057 (333)

Exploiting Geometric Frustration in Coupled von Mises Trusses to Program Multifunctional Mechanical Metamaterials

open access: yesAdvanced Engineering Materials, EarlyView.
Mechanical metamaterials capable of compressive stiffness tunability, shape morphing, and post‐fabrication modularity. Herein, the 3D unit cell design is based on an assembly of bistable von Mises trusses that exhibit a switch in compressive stiffness and resting height from one stable state to the other.
Yannis Liétard   +2 more
wiley   +1 more source

Material Challenges and Alloy Selection for Particle/s‐CO2 Heat Exchangers in Concentrated Solar Power Systems

open access: yesAdvanced Engineering Materials, EarlyView.
Combining supercritical CO2 (s‐CO2) cycles with particle‐based heat transfer media holds great potential in concentrated solar power plants but poses enormous material challenges. The particle/s‐CO2 heat exchanger must withstand extreme conditions, including high temperatures, pressures, CO2 corrosion, and erosion.
Mathias Christian Galetz   +5 more
wiley   +1 more source

Rupture de la rate au cours de L'accouchement : à propos d'un cas

open access: yesThe Pan African Medical Journal, 2011
La rupture de rate est une extrême urgence chirurgicale abdominale qui met très rapidement en jeu le pronostic vital. Les étiologies fréquemment retrouvées sont les traumatismes abdominaux par contusions ou plaies pénétrantes. La survenue d'un rupture de
Houda Elbahraoui   +4 more
doaj   +1 more source

Tracheal rupture related to endotracheal intubation during cardiopulmonary resuscitation

open access: yesJournal of Emergencies, Trauma and Shock, 2019
Postintubation tracheal rupture is rare, but serious. Emergency intubation is often conducted during cardiopulmonary resuscitation (CPR), and the risk of postintubation tracheal rupture can be increased during CPR.
Hyun Min Jung   +3 more
doaj   +1 more source

Beyond Global Mechanical Properties: Bioinspired Triply‐Periodic Minimal Surface Cellular Solids for Efficient Mechanical Design and Optimization

open access: yesAdvanced Engineering Materials, EarlyView.
Using novel probe‐based metrics, this study evaluates lattice structures on criteria critical to cellular solid optimization. Triply‐periodic minimal surface (TPMS) lattices outperform other lattices, offering more predictable mechanical behavior in complex design spaces and, as a result, higher performance in optimized models.
Firas Breish   +2 more
wiley   +1 more source

Prise en charge des ruptures traumatiques des corps caverneux au sein d'une population militaire

open access: yesThe Pan African Medical Journal, 2014
Le but de ce travail rétrospectif était de préciser les résultats de notre prise en charge des traumatismes du corps caverneux au cours des huit dernières années.
Mohammed Alami   +4 more
doaj   +1 more source

SPONTANEOUS RUPTURE OF THE MALARIAL SPLEEN. [PDF]

open access: green, 1916
Jaydeep Choudhury   +2 more
openalex   +1 more source

Study of the fracture process of Al Hoceima earthquake (24/02/2004, Mw=6.2) from regional and teleseismic data. [PDF]

open access: yes, 2005
We studied the source time function (STF) and rupture process of the 2004 Alhoceima, Morocco earthquake of Mw = 6.2 using teleseismic and regional broad-band data. From regional broad-band data, STF function was determined using three large after- shocks
Bezzghoud, M   +4 more
core  

Fractographic Analysis and Fatigue Behavior of Additively Manufactured Ni‐Superalloy Components with Post Processing Heat Treatment and Hot Isostatic Pressing

open access: yesAdvanced Engineering Materials, EarlyView.
A study of mechanical properties and fractography of PBF‐LB/M‐built Inconel 718, performing heat treatments and hot‐isostatic pressing, is presented. Ultimate tensile strength and fatigue behavior are evaluated, examining differences in maximum load behavior, elongation, and regimes of fatigue.
David Sommer   +3 more
wiley   +1 more source

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